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CN-224217030-U - Pressure controller protective structure

CN224217030UCN 224217030 UCN224217030 UCN 224217030UCN-224217030-U

Abstract

The utility model discloses a protective structure of a pressure controller, which relates to a protective structure of equipment in the field, and comprises a pressure gauge for measuring and controlling pressure, wherein an explosion-proof mechanism is arranged at the bottom of the pressure gauge, the explosion-proof mechanism comprises a pipeline for gas circulation, a filtering mechanism for balancing the flow rate of gas is arranged at the bottom of the pipeline, the filtering mechanism comprises a shell, the surface of the shell is provided with a balancing mechanism, when the device is used, the device is connected with a device to be controlled through an air inlet and a thread block of a connecting mechanism, the connection is stable and well sealed, then the device starts to work, gas enters the shell through the connecting mechanism, the flow rate of the gas is changed by the double steady flow of a first filter screen and a second filter screen sequentially, a shifting block is matched with a chute to control the second filter screen, the steady flow effect is maintained, the gas after steady flow enters the pipeline, the gas enters the pressure controller through a grid and a choke screen, the pressure data of the device is detected, and then the next work is performed.

Inventors

  • Lin Suidao

Assignees

  • 黑龙江杜垠仪表有限公司

Dates

Publication Date
20260508
Application Date
20250624

Claims (7)

  1. 1. The utility model provides a pressure controller protective structure, includes manometer (10) that are used for measuring control pressure, its characterized in that, the bottom of manometer (10) is provided with explosion-proof mechanism (40), explosion-proof mechanism (40) are including pipeline (41) that are used for the gas circulation, the inside fixedly connected with grid (42) of pipeline (41), the bottom of pipeline (41) is provided with filtering mechanism (20) of balanced air current velocity of flow, filtering mechanism (20) include shell (21), the inside fixedly connected with first filter screen (22) of shell (21), the bottom swing joint of first filter screen (22) has second filter screen (23), the surface mounting of shell (21) has balancing mechanism (30), balancing mechanism (30) include L venturi tube (31), the inside swing joint of L venturi tube (31) has piston (32), valve subassembly (34) are installed at the top of L venturi tube (31), the bottom of shell (21) is provided with coupling mechanism (50).
  2. 2. The pressure controller protection structure according to claim 1, wherein a sliding groove (24) is formed in the surface of the housing (21), a shifting block (25) is fixedly connected to the surface of the second filter screen (23), the shifting block (25) slides in the sliding groove (24), and the sliding groove (24) limits the shifting block (25).
  3. 3. The pressure controller protection structure according to claim 1, wherein the valve assembly (34) comprises a disc (341) sliding on the inner wall of the L-shaped pipe (31), a straight rod (342) is fixedly connected to the top of the disc (341), a hole (343) is formed in the straight rod (342), and a clamping block (344) is connected in the hole (343) in a penetrating and sliding manner.
  4. 4. A pressure controller protection structure according to claim 3, characterized in that a spring (33) is fixedly connected between the piston (32) and the disc (341), and the top of the piston (32) is provided with a bump for pressing the disc (341).
  5. 5. A pressure controller protection structure according to claim 3, wherein the bottom of the grid (42) is slidably connected with a choke net (44), a sloping block (43) is fixedly connected to the surface of the choke net (44), and the grid (42) is adapted to the choke net (44).
  6. 6. The pressure controller protection structure according to claim 1, wherein the connecting mechanism (50) comprises an air inlet (51), a screw block (52) for reinforcing connection is fixedly connected to the top of the air inlet (51), and an elastic clamping block (53) for buffering is fixedly connected to the bottom of the housing (21).
  7. 7. The pressure controller protection structure according to claim 5, characterized in that the straight rod (342) is in contact with a sloping block (43), the sloping block (43) slides inside the pipeline (41), and the first filter screen (22) is adapted to the second filter screen (23).

Description

Pressure controller protective structure Technical Field The utility model relates to the field of equipment protection structures, in particular to a pressure controller protection structure. Background In an industrial control technology system, a pressure controller becomes a key guarantee component for safe and stable operation of a refrigerating system by virtue of accurate pressure monitoring and regulating capability, and the pressure controller is used as a safety protection and control component and can prevent the air inlet pressure from being too low or the air outlet pressure from being too high, so that the pressure controller is widely applied to various fields such as air conditioners, refrigeration houses, cold chain logistics and the like. In the operation process of the traditional pressure controller, the tiny air flow interference is caused by frequent actions, the pressure fluctuation caused by turbulent flow pulsation of air in a pipeline or tiny leakage of a valve can enable the pressure controller to work repeatedly in a short time, not only is the energy consumption of a system increased, but also frequent on-off of mechanical contacts in the controller is caused, the pressure set value of the controller is finally drifted for a long time, the control accuracy is reduced, even the pressure is completely disabled, in industrial production, the conditions of equipment start-stop, valve quick opening and closing, system failure and the like can possibly cause pressure surge, for the traditional pressure controller, when the pressure mutation exceeds the rated bearing range of the traditional pressure controller, the internal sensitive element can bear excessive stress, and once a core part is damaged, the pressure controller can not normally sense a pressure signal, and then the control function is lost. The present invention has been made in view of this. Disclosure of utility model The utility model aims to solve the problems and provides a pressure controller protection structure. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a pressure controller protective structure, is including the manometer that is used for measuring control pressure, the bottom of manometer is provided with explosion-proof mechanism, explosion-proof mechanism is including the pipeline that is used for the gas circulation, the inside fixedly connected with grid of pipeline, the bottom of pipeline is provided with the filter equipment of balanced air current velocity of flow, filter equipment includes the shell, the inside fixedly connected with first filter screen of shell, the bottom swing joint of first filter screen has the second filter screen, the surface mounting of shell has balance mechanism, balance mechanism includes the L venturi tube, the inside swing joint of L venturi tube has the piston, valve component is installed at the top of L venturi tube, the bottom of shell is provided with coupling mechanism. Preferably, a sliding groove is formed in the surface of the shell, a shifting block is fixedly connected with the surface of the second filter screen, the shifting block slides in the sliding groove, and the sliding groove limits the shifting block. Preferably, the valve assembly comprises a disc sliding on the inner wall of the L-shaped pipe, a straight rod is fixedly connected to the top of the disc, a hole is formed in the straight rod, and a clamping block penetrates through the hole and is connected with the hole in a sliding mode. Preferably, a spring is fixedly connected between the piston and the disc, and a bump for extruding the disc is arranged at the top of the piston. Preferably, the bottom of the grid is connected with a choke net in a sliding manner, the surface of the choke net is fixedly connected with an inclined block, and the grid is matched with the choke net. Preferably, the connecting mechanism comprises an air inlet, the top of the air inlet is fixedly connected with a reinforced and connected threaded block, and the bottom of the shell is fixedly connected with an elastic clamping block for buffering. Preferably, the straight rod is in contact with the inclined block, the inclined block slides in the pipeline, and the first filter screen is matched with the second filter screen. In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: When the device is used, the device is connected with a device to be controlled through the air inlet and the thread blocks of the connecting mechanism, stable connection and good sealing are ensured, then the device starts to work, gas enters the shell through the connecting mechanism, the gas flows through the first filter screen and the second filter screen in a double steady flow mode, the shifting block is matched with the sliding groove to control the second filter screen, the flow speed of the