CN-224202818-U - Explosion-proof type automatic water quality sampling device

Abstract

The utility model provides an explosion-proof type quality of water automatic sampling device, relate to quality of water sampling equipment technical field, including control unit, the sampling unit, leave appearance unit and air cooler, control unit includes the explosion proof case and power and the control panel in them, the sampling unit includes compressed air source in proper order, explosion-proof solenoid valve, air motor and peristaltic pump, compressed air source, explosion-proof solenoid valve and air motor pass through the trachea and connect, air motor and peristaltic pump pass through the coupling joint, the passageway of explosion-proof solenoid valve is controlled to the control panel, leave appearance unit includes the fridge and the stay appearance bottle in thereof, peristaltic pump is connected with water source and stay appearance bottle through the water pipe respectively, air cooler is connected with explosion-proof solenoid valve and fridge through the trachea respectively. All devices in the sampling and refrigerating process are driven by compressed air instead of electric power, the whole machine has an explosion-proof function, is suitable for sampling water quality in dangerous situations, and fills the technical blank of the safety requirement of sampling water quality in high-risk environments.

Inventors

• JIN LI
• ZHU JIAHUA
• XIONG DONGDONG
• LI ERBAO
• JIN JIAN
• SONG JIANFENG
• CHENG JIE
• Zheng Shanjie
• WANG YONG

Assignees

• 浙江小桥流水环境科技有限公司

Dates

Publication Date

20260505

Application Date

20250523

Claims (8)

1. 1. An explosion-proof automatic water quality sampling device is characterized by comprising a control unit (10), a sampling unit, a sample reserving unit (30) and an air refrigerator (40); The control unit (10) comprises an explosion-proof box (11) and a power supply (12) and a control board (13) therein; The sampling unit sequentially comprises a compressed air source (21), an explosion-proof electromagnetic valve (22), a pneumatic motor (23) and a peristaltic pump (24), wherein the compressed air source (21), the explosion-proof electromagnetic valve (22) and the pneumatic motor (23) are connected through an air pipe (101), the pneumatic motor (23) and the peristaltic pump (24) are connected through a coupler (102), and a control board (13) controls the passage of the explosion-proof electromagnetic valve (22); the sample reserving unit (30) comprises a refrigerator (31) and a sample reserving bottle (32) therein, and the peristaltic pump (24) is connected with a water source and the sample reserving bottle (32) through a water pipe (103) respectively; The air refrigerator (40) is connected with the explosion-proof electromagnetic valve (22) and the refrigerator (31) through air pipes (101) respectively.
2. 2. An explosion-proof automatic water sampling device according to claim 1, wherein the control unit (10) further comprises a temperature controller (14) positioned in the explosion-proof tank (11).
3. 3. The explosion-proof automatic water quality sampling device according to claim 1, wherein the explosion-proof box (11) is made of stainless steel or aluminum alloy.
4. 4. The explosion-proof automatic water quality sampling device according to claim 3, wherein the back side of the outer part of the explosion-proof box (11) is provided with aluminum radiating fins, and a semiconductor refrigerating sheet is arranged in the inner part of the explosion-proof box.
5. 5. An explosion-proof automatic water quality sampling device according to claim 1, wherein the compressed air source (21) is an explosion-proof air compressor.
6. 6. An explosion-proof automatic water quality sampling device according to claim 1, wherein the air cooler (40) is a vortex tube cooler.
7. 7. An automatic explosion-proof water quality sampling device according to claim 6, wherein the air pipe (101) of the air cooler (40) leading to the refrigerator (31) is a copper pipe.
8. 8. An explosion-proof automatic water quality sampling device according to any one of claims 1-7, characterized in that the peristaltic pump (24) is provided with a pneumatic ball valve (25) on a water pipe (103) of a water source, and the explosion-proof electromagnetic valve (22) and the pneumatic ball valve (25) are connected through an air pipe (101).

Description

Explosion-proof type automatic water quality sampling device Technical Field The utility model relates to the technical field of water quality sampling equipment, in particular to an explosion-proof automatic water quality sampling device. Background The traditional water quality sampler adopts a motor to drive a peristaltic pump or a common electromagnetic valve, explosion is easily caused by electric sparks in flammable and explosive environments, a compressor type refrigeration system needs electric element refrigeration, the explosion-proof requirement is not met, in addition, the conventional control box/box has poor autonomous heat dissipation performance, the internal electronic element heats to cause temperature overrun, the stability of a control panel is influenced by long-term high temperature, potential safety hazards exist, and the service life is shortened. Therefore, the current automatic sampler for realizing the full-flow non-electrochemical water quality sampling of sampling-refrigerating is not found, and the safety requirement of water quality sampling in high-risk environments cannot be met. Disclosure of utility model The utility model aims to solve the defects of the prior art, and provides an explosion-proof automatic water quality sampling device, wherein all devices in the sampling and refrigerating processes are driven by compressed air instead of electric power, the whole machine has an explosion-proof function, is suitable for sampling water quality in dangerous situations, and fills the technical blank of the safety requirement of water quality sampling in high-risk environments. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides an explosion-proof formula quality of water automatic sampling device, includes control unit, sampling unit, stays appearance unit and air cooler, control unit includes explosion-proof case and power and the control panel in it, sampling unit includes compressed air source, explosion-proof solenoid valve, pneumatic motor and peristaltic pump in proper order, and compressed air source, explosion-proof solenoid valve and pneumatic motor pass through the trachea and connect, and pneumatic motor and peristaltic pump pass through the coupling joint, and the passageway of explosion-proof solenoid valve is controlled to the control panel, it includes the sample reserving bottle of fridge and in it to stay appearance unit, the peristaltic pump is connected with water source and sample reserving bottle through the water pipe respectively, air cooler is connected with explosion-proof solenoid valve and fridge through the trachea respectively. The power supply and the control panel are packaged through the explosion-proof box, the power supply provides power for the control unit, the control panel controls the passage of the explosion-proof electromagnetic valve through instructions, compressed air generated by the compressed air source enters the explosion-proof electromagnetic valve from the inlet, compressed air at one outlet is introduced into the pneumatic motor to drive the pneumatic motor, the peristaltic pump is driven to work through the coupler, water at the water source enters the sample reserving bottle under the driving of the peristaltic pump, after quantitative sampling is completed, the control panel sends instructions to control the passage of the explosion-proof electromagnetic valve to adjust, the passage to the pneumatic motor is closed, and sampling is stopped. The compressed air at the other outlet is introduced into the air refrigerator, and the generated cold air is introduced into the refrigerator for refrigeration. Preferably, the control unit further comprises a temperature controller positioned in the explosion-proof box and used for controlling the temperature in the refrigerator, and the refrigerator is provided with a temperature sensor. Preferably, the explosion-proof box is made of stainless steel or aluminum alloy. The explosion-proof box is made of high-strength materials (stainless steel, aluminum alloy and the like), the joint surface of the box body is a labyrinth seal groove, and the fluororubber seal ring (temperature resistant-40 ℃ to 200 ℃) is embedded, so that the explosion-proof box can bear internal explosion pressure and prevent flame from spreading outwards, and the explosion-proof gap is designed to meet explosion-proof standards (such as GB 3836.1-2000) to prevent external explosive gas from entering the interior. Preferably, an aluminum radiating fin is arranged on the back side of the outer part of the explosion-proof box, and a semiconductor refrigerating sheet is arranged in the explosion-proof box. The heat dissipation design prevents the temperature of the cavity from overrun caused by heating of electronic components in the explosion-proof box, avoids the influence of long-term high temperature on the stability of the control board, and