CN-122016279-A - Device and method for detecting water distribution performance of solid conical sprinkler

CN122016279ACN 122016279 ACN122016279 ACN 122016279ACN-122016279-A

Abstract

The application belongs to the technical field of detection devices, and discloses a device and a method for detecting water distribution performance of a solid conical sprinkler head, which comprises a water collecting shell, wherein a plurality of water collecting tanks are arranged at the top of the water collecting shell, liquid level sensors are arranged in the water collecting tanks of the water collecting shell, a solenoid valve capable of lifting is arranged above the water collecting shell, the electromagnetic valve is detachably connected with a spray head communicated with a channel in the electromagnetic valve, one side of the water collecting shell is provided with a control system, a gas supply mechanism and a water supply mechanism, the control system is used for controlling the electromagnetic valve, the gas supply mechanism and the water supply mechanism, the water supply mechanism is used for supplying water flow into the electromagnetic valve, and the gas supply mechanism is used for increasing water supply pressure of the water supply mechanism. According to the application, through improving the prior art and through the distribution of water flow sprayed by the spray heads under different pressures, whether the spray heads meet the requirements or not is judged, and the accuracy of the detection result of the spray heads is improved.

Inventors

WANG JIANLONG
LI TIANYU
LI XINRUI
WU ZHENG
ZHOU WEN
LV ZHIXING
JI SHENGNAN
KOU YONGFENG
ZHANG SHANSHAN
YU SHUIQING
YAN LI
YUAN XI

Assignees

中国兵器工业火炸药工程与安全技术研究院
太原工业学院

Dates

Publication Date: 20260512
Application Date: 20260203

Claims (10)

1. A water distribution performance detection device of a solid conical water spraying nozzle is characterized by comprising a water collecting shell (1) with a plurality of water collecting grooves at the top, wherein an electromagnetic valve (2) capable of lifting is arranged above the water collecting shell (1), a nozzle (3) is communicated with the electromagnetic valve (2), a control system (4), a gas supply mechanism (5) and a water supply mechanism (6) are arranged on one side of the water collecting shell (1), the control system (4) is used for controlling the electromagnetic valve (2), the gas supply mechanism (5) and the water supply mechanism (6), the water supply mechanism (6) is used for supplying water flow into the electromagnetic valve (2), and the gas supply mechanism (5) is used for increasing water supply pressure of the water supply mechanism (6).
2. The solid cone-shaped sprinkler head water distribution performance detection device according to claim 1, wherein the control system (4) comprises a control line (41) connected with a circuit of the electromagnetic valve (2) and a controller (42) connected with the control line (41) in a circuit mode, a display and an operation button are arranged on the controller (42), the air supply mechanism (5) comprises a nitrogen cylinder (51) arranged on one side of the water collecting shell (1), an air supply switch (52) fixed and communicated with the top of the nitrogen cylinder (51), an air supply pipe (53) fixed and communicated with the air outlet end of the air supply switch (52) and a pressure reducing and stabilizing valve (54) arranged on the air supply pipe (53), and the air supply pipe (53) is connected with the water supply mechanism (6).
3. The device for detecting the water distribution performance of the solid cone-shaped sprinkler head according to claim 2, wherein the water supply mechanism (6) comprises a water storage tank (61) arranged on one side of the water collection shell (1), a water supply pipe (62) fixed and communicated with the side wall of the water storage tank (61), a flow monitoring sensor (63) arranged on the water supply pipe (62), a liquid level monitoring sensor (64) arranged on Chu Shuiguan (61), a water supplementing pipe (65) fixed and communicated with the top of the water storage tank (61), a valve (66) arranged on the water supplementing pipe (65) and an emptying valve (67) fixed and communicated with the water storage tank (61), and one end of the air supply pipe (53) far away from the nitrogen cylinder (51) is communicated with the water storage tank (61), and one end of the water supplementing pipe (65) far away from the water storage tank (61) is fixed and communicated with the water supply pipe (62).
4. A detection method of a solid cone-shaped sprinkler head water distribution performance detection device according to any one of claims 1-3 is characterized by comprising the following steps of S1, connecting a sprinkler head (3) to be detected with an electromagnetic valve (2); S2, the operation control system (4) adjusts the pressure behind the pressure reducing and stabilizing valve (54) according to the pressure required by the water supply mechanism (6), and sets the time for the control system (4) to control the action; S3, opening a channel in the electromagnetic valve (2) by the operation control system (4), enabling the water supply mechanism (6) to act, and discharging water flow to a water collecting tank in the water collecting shell (1) through the spray head (3); S4, detecting and recording the volume of water in the corresponding water collecting tank by the water level sensor in each water collecting tank, transmitting the detection result to the control system (4), and enabling the control system (4) to calculate according to the formula Calculating the average volume of each water collecting tank, wherein t is the action time of a water supply mechanism (6) and is expressed as s, Q is the water supply flow and is expressed as L/s, V is the average water sprinkling volume of each water collecting tank and is expressed as L, and the number of the water collecting tanks with the water volume smaller than the average volume is less than or equal to 4, so that the spray head (3) can be judged to meet the requirements; S5, repeating the actions of S2, S3 and S4 according to different action pressures to be tested of the spray head (3); S6, judging the water distribution performance of the spray head (3) according to the obtained data.
5. The device for detecting the water distribution performance of the solid cone-shaped sprinkler head according to claim 3, wherein an auxiliary mechanism (7) is arranged on the water collecting shell (1), a detection component (9) and a water return mechanism (11) are arranged on the auxiliary mechanism (7), the auxiliary mechanism (7) comprises an auxiliary component (71) and a rotating component (72), the auxiliary component (71) comprises a detection box (711) which is arranged on a detection field and is of a hollow structure with an opening at the top, a lifting plate (712) which is arranged in the detection box (711) in a sliding manner, and a rotary table (713) which is arranged at the top of the lifting plate (712) in a penetrating manner and is in rotary connection with the lifting plate (712), a plurality of mounting through holes (8) for placing and limiting the sprinkler head (3) are arranged at the top of the rotary table (713), the rotating component (72) comprises a motor (721) which is fixed on the lifting plate (712), the output end of the motor (721) penetrates the top of the lifting plate (712) and is in rotary connection with the plate (712), the rotating component (72) comprises a gear (722) which is also fixed on the gear (723) and is meshed with the fixed gear (722) of the rotary table (723) which is arranged on the water collecting shell (723) in a fixed manner, the auxiliary mechanism (7) further comprises a lifting assembly (73) for driving the lifting plate (712) to lift.
6. The device for detecting the water distribution performance of the solid cone-shaped sprinkler head according to claim 5, wherein sliding through holes (10) are formed in the side walls of the two sides of the detection box (711) in a penetrating manner, the number of groups of the lifting assemblies (73) is equal to that of the sliding through holes (10) and the positions of the lifting assemblies are in one-to-one correspondence, the lifting assemblies (73) comprise connecting frames (731) which are arranged in the sliding through holes (10) in a sliding manner and are fixedly connected with the lifting plates (712), first hydraulic rods (732) which are fixed on the detection box (711) and vertical rods (733) which are fixed in the sliding through holes (10) and are in sliding fit with the connecting frames (731), and the push rod ends of the first hydraulic rods (732) are fixedly connected with the connecting frames (731); The detection assembly (9) comprises a mounting frame (91) fixed on a detection box (711), a second hydraulic rod (92) fixed on the mounting frame (91), a transverse plate (93) fixed on the end part of a push rod of the second hydraulic rod (92) and a detection tube (94) fixed on the bottom of the electromagnetic valve (2) and communicated with an internal channel of the electromagnetic valve (2), wherein the electromagnetic valve (2) is fixed on the bottom of the transverse plate (93), and the detection tube (94) is in plug connection with a spray head (3) positioned below the detection tube.
7. The device for detecting the water distribution performance of the solid cone-shaped sprinkler head according to claim 5, wherein the water return mechanism (11) comprises a water return component (111), the water return component (111) comprises a water drain pipe (1111) fixed at the bottom of the water collecting shell (1) and communicated with the water collecting tank of the water collecting shell (1), a water pump (1112) fixed on the side wall of the detection box (711), a water inlet pipe (1113) fixed on the water inlet end of the water pump (1112) and communicated with the water outlet end of the water pump (1112), and a return pipe (1114) fixed on the water outlet end of the water pump (1112), the water inlet pipe (1113) extends into the detection box (711), the number of the water drain pipes (1111) is equal to the number of the water collecting tanks and corresponds to the water collecting tanks one by one, and the return pipe (1114) is communicated with the water storage tank (61).
8. The device for detecting the water distribution performance of the solid cone-shaped sprinkler head according to claim 7, wherein the water return mechanism (11) further comprises a filtering component (112), the filtering component (112) comprises a filter box (1121) fixed on a bottom plate of the detection box (711), a connecting pipe (1122) fixed on and communicated with the filter box (1121), a filter cylinder (1123) arranged in the filter box (1121) and a filter element (1124) connected in the filter cylinder (1123) in a plugging manner, one end of the connecting pipe (1122) far away from the filter box (1121) is fixed on and communicated with the side wall of the water storage tank (61), the backflow pipe (1114) is communicated with the filter element (1124), and the water return mechanism (11) further comprises a sealing component (113) for preventing overflow from the filter element (1124).
9. The solid cone-shaped sprinkler head water distribution performance detection device according to claim 8, wherein the sealing assembly (113) comprises a partition plate (1131) fixed in the filter tank (1121), a cover plate (1132) arranged at the top of the filter tank (1121), a sealing block (1133) fixed at the bottom of the cover plate (1132) and spliced with the filter tank (1121), a telescopic pipe (1134) sequentially penetrating through the top of the cover plate (1132), the sealing block (1133) and fixedly connected with the sealing block (1133) and the cover plate (1132), and two third hydraulic rods (1135) fixed on the bottom plate of the detection tank (711), the protruding parts of the sealing block (1133) are spliced and connected with the inner wall of the filter element (1124), the filter cylinder (1123) is fixed on the inner wall of the partition plate (1131), the telescopic pipe (1134) is fixedly and communicated with the return pipe (1114), the lower end of the telescopic pipe (1134) is communicated with the filter element (1124), and the end part of the third hydraulic rods (1135) is fixedly connected with the cover plate (1132).
10. The solid cone-shaped sprinkler head water distribution performance detection device according to claim 6, wherein an annular plate (12) is fixed in the detection tube (94), a sealing ring (13) coaxially arranged with the annular plate (12) is fixed at the bottom of the annular plate (12), the sealing ring (13) is of an annular structure with hollow inside, the bottom of the sealing ring (13) is abutted against the top of the corresponding sprinkler head (3), and the sealing ring (13) is in an extrusion deformation state.

Description

Device and method for detecting water distribution performance of solid conical sprinkler Technical Field The invention relates to the technical field of detection devices, in particular to a device and a method for detecting water distribution performance of a solid conical sprinkler head. Background Because dangerous material fire spread speed is fast in inflammable and explosive production place, need set up quick fire extinguishing system and just can really exert the effect of putting out a fire, quick fire extinguishing system possesses detection time, system opening valve and water reach the time of firing the point all faster than automatic sprinkler system, in order to reduce the time of water to the firing point, improve quick fire extinguishing system's fire extinguishing effect, quick fire extinguishing system generally adopts solid cone sprinkler head, solid cone sprinkler head has characteristics such as spray angle is little, water velocity is fast, can realize that a large amount of water spouts to the advantage of firing the point fast. However, because the internal blade structure of the solid conical sprinkler is various, the effect of uniformity of water distribution is also different, if the solid conical sprinkler applied to the rapid fire extinguishing system is uneven in water distribution, fire in flammable and explosive places can not be extinguished because the actual water spraying intensity is reduced, and fire spreading is caused. Most of the existing detection devices can only detect under fixed water supply pressure, in practical application, the working pressure of the solid conical sprinkler head can change along with the pressure fluctuation of a pipe network, and the detection result under a single working condition cannot comprehensively reflect the water distribution performance of the sprinkler head under different water pressures, so that the accuracy of the detection result of the detection device is affected. Disclosure of Invention In order to solve the problems, the invention provides a device and a method for detecting the water distribution performance of a solid cone-shaped sprinkler head. The technical aim of the invention is achieved through the following technical scheme that the water distribution performance detection device of the solid conical sprinkler head comprises a water collecting shell, wherein a plurality of water collecting grooves are formed in the top of the water collecting shell, liquid level sensors are arranged in the water collecting grooves of the water collecting shell, an electromagnetic valve capable of lifting is arranged above the water collecting shell, the sprinkler head communicated with a channel in the electromagnetic valve is detachably connected to the electromagnetic valve, a control system, an air supply mechanism and a water supply mechanism are arranged on one side of the water collecting shell, the control system is used for controlling the electromagnetic valve, the air supply mechanism and the water supply mechanism, the water supply mechanism is used for supplying water flow into the electromagnetic valve, and the air supply mechanism is used for increasing water supply pressure of the water supply mechanism. Through adopting above-mentioned technical scheme, will wait to detect the shower nozzle and solenoid valve at first, operation control system adjusts the water supply pressure of air feed mechanism and water supply mechanism, set up the time of control system control action simultaneously, control system opens the passageway in the solenoid valve afterwards, water supply mechanism action, rivers pass through the shower nozzle and arrange to the water catch bowl in the water catch bowl, at this moment, the water level sensor in every water catch bowl detects the volume of the corresponding water catch bowl of record, and transmit the testing result to control system, control system is according to the formulaThe average volume of each water collecting tank is calculated, wherein t is the action time of a water supply mechanism, the unit is S, Q is the water supply flow, the unit is L/S, V is the average water spraying volume of each water collecting tank, the unit is L, the water volume is smaller than the water collecting tank number of the average volume and is less than or equal to 4, the sprinkler meets the requirement, then different water supply pressures are regulated, water is supplied to the sprinkler, the actions of S2, S3 and S4 are repeated, finally the water distribution performance of the sprinkler is judged by integrating the values under the different conditions, and the accuracy of the detection result of the sprinkler is improved in a mode of judging whether the sprinkler meets the requirement or not by the distribution condition of water currents sprayed by the sprinkler under the different pressures. Further, the control system comprises a control line connected with the electromagnetic valve