CN216865328U - Variable-frequency water supply device with liquid leakage detection function - Google Patents

Variable-frequency water supply device with liquid leakage detection function Download PDF

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Publication number
CN216865328U
CN216865328U CN202122316026.5U CN202122316026U CN216865328U CN 216865328 U CN216865328 U CN 216865328U CN 202122316026 U CN202122316026 U CN 202122316026U CN 216865328 U CN216865328 U CN 216865328U
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China
Prior art keywords
valve
inlet
water pump
expansion tank
tank body
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CN202122316026.5U
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Chinese (zh)
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吴一舟
张春建
张艳丽
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Hansun Jiangsu Marine Technology Co ltd
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Hansun Jiangsu Marine Technology Co ltd
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Abstract

The utility model relates to a variable-frequency water supply device with liquid leakage detection, which comprises a water inlet, a water outlet, an expansion tank, a valve component, a water pump component, a pipeline component, a frequency converter and a control box, the water inlet, the water outlet, the expansion tank, the valve component and the water pump component are connected through the pipeline component, the water pump assembly is electrically connected with the control box through the frequency converter, the expansion tank comprises a tank body and an air bag, the air bag is positioned in the tank body, an inflation cavity is formed between the air bag and the tank body, an expansion tank inlet and an expansion tank outlet which are connected with the air bag are arranged at the bottom of the tank body, an expansion tank pressure gauge and an inflation nozzle which are respectively connected with the inflation cavity are arranged on the tank body, a connecting pipe communicated with the inflation cavity is arranged on one side of the bottom of the tank body, and a liquid immersion sensor is arranged on the connecting pipe and is connected with the control box.

Description

Variable-frequency water supply device with liquid leakage detection function
Technical Field
The utility model relates to a marine variable-frequency water supply device, and particularly discloses a variable-frequency water supply device with liquid leakage detection.
Background
The marine expansion tank is commonly used for a variable-frequency water supply device, is used for stabilizing pressure, reduces pump impact on a pipe network, and reduces pump starting and stopping frequency.
Usually, the air bag type expansion tank is additionally provided with an air bag in the tank body, and the structure of the air bag type expansion tank is known as follows: when the water pressure in the system rises, external pressure pushes water into the expansion tank air bag, nitrogen or air sealed in the tank is compressed, and according to the Boyle's law of gases, the volume becomes smaller when the gas is compressed until the gas pressure and the water pressure in the expansion tank reach balance. When the system pressure decreases, the gas pressure in the expansion tank is greater than the water pressure, at which time the water in the bladder is drained. And stopping water drainage until the gas pressure and the system pressure reach the balance again. When water pressure slightly changes in the system, the automatic expansion and contraction of the expansion tank air bag can have certain buffering effect on the change of the water pressure, the stability of the water pressure of the system can be guaranteed, the water pump cannot be frequently started due to the change of the pressure, and therefore the main pump of the water supply system can be dormant to reduce power consumption and prolong the service life of the water pump.
Most of the air bag type expansion tanks in the current market are filled with water in an air bag and air in the expansion tank. In order to prolong the service life of the air bag, the inner part of the tank body is smooth, an inspection hole is not formed on the tank body generally, and the whole tank body is welded. In the future use process of the structure, once the air bag is damaged, the water filled in the air bag is inevitably leaked in the tank body, is difficult to find, cannot be maintained in time, causes the effect of the expansion tank to be reduced, and has large system pressure fluctuation. The pump can frequently start and stop, reduces its life.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the variable-frequency water supply device with the liquid leakage detection, which has a simple structure and can feed back the damage condition of the air bag in time.
The utility model is realized by the following steps: a frequency conversion water supply device with liquid leakage detection comprises a water inlet, a water outlet, an expansion tank, a valve component, a water pump component, a pipeline component, a frequency converter and a control box, the water inlet, the water outlet, the expansion tank, the valve component and the water pump component are connected through the pipeline component, the water pump assembly is electrically connected with the control box through the frequency converter, the expansion tank comprises a tank body and an air bag, the air bag is positioned in the tank body, an inflation cavity is formed between the air bag and the tank body, an expansion tank inlet and an expansion tank outlet which are connected with the air bag are arranged at the bottom of the tank body, an expansion tank pressure gauge and an inflation nozzle which are respectively connected with the inflation cavity are arranged on the tank body, a connecting pipe communicated with the inflation cavity is arranged on one side of the bottom of the tank body, and a liquid immersion sensor is arranged on the connecting pipe and is connected with the control box.
The valve assembly comprises a first inlet valve, a second inlet valve, a first isolation valve, a second isolation valve, an expansion tank inlet valve, a third isolation valve, a safety valve, a discharge valve, a first check valve and a second check valve; the water pump assembly comprises a first water pump, a first pressure gauge, a second water pump, a third pressure gauge and a fourth pressure gauge;
the water inlet is respectively connected with the first inlet valve and the second inlet valve; the first inlet valve, the first pressure gauge, the first water pump, the second pressure gauge, the first check valve and the first isolating valve are sequentially connected; the second inlet valve, the third pressure gauge, the second water pump, the fourth pressure gauge, the second check valve and the second isolation valve are sequentially connected; the first isolation valve is connected with the second isolation valve and then respectively connected with the water outlet and the expansion tank inlet valve; the expansion tank inlet valve is respectively connected with the expansion tank inlet and outlet, the third isolation valve, the safety valve and the discharge valve; a valve port of the third isolating valve is provided with a pressure sensor electrically connected with the control box; the first water pump and the second water pump are respectively and electrically connected with the frequency converter.
The control box is a control box with an alarm.
The connecting pipe is an L-shaped bent pipe.
The connection part of the connecting pipe and the inner wall of the tank body is a connector, and the plane of the connector and the inner wall of the tank body are in the same smooth curved surface.
The connecting pipe is connected with the liquid immersion sensor through threads.
The utility model has the beneficial effects that: through whether liquid leaks in the monitoring gasbag of liquid immersion sensor, in case the broken weeping situation of gasbag appears, liquid immersion sensor sends the weeping signal to the control box, and the control box is indicateed or is reported to the police, reminds to change needs, and convenient maintenance guarantees the normal use of expansion tank, improves water pump assembly's life. The liquid immersion sensor is connected with the connecting pipe through threads, and the liquid immersion sensor is simple to disassemble and assemble and convenient to maintain.
Drawings
FIG. 1 is a schematic view of the connection structure of the present invention.
Wherein: 1. a first inlet valve; 2. A second inlet valve; 3. A first isolation valve; 4. A second isolation valve; 5. An expansion tank inlet valve; 6. A third isolation valve; 7. A relief valve; 8. A second check valve; 9. A first check valve; 10. A safety valve; 11. A liquid immersion sensor; 12. A control box; 13. An air bag; 14. A first water pump; 15. A second water pump; 16. A first pressure gauge; 17. A third pressure gauge; 18. A second pressure gauge; 19. A fourth pressure gauge; 20. An expansion tank pressure gauge; 21. A pressure sensor; 22. An air charging nozzle; 23. a water inlet; 24. a water outlet; 25. an expansion tank; 26. a frequency converter; 27. a tubing assembly; 28. a tank body; 29. an inlet and an outlet of the expansion tank; 30. and (4) connecting the pipes.
Detailed Description
According to fig. 1, the utility model comprises a water inlet 23, a water outlet 24, an expansion tank 25, a valve assembly, a water pump assembly, a pipeline assembly 27, a frequency converter 26 and a control box 12, wherein the control box 12 is preferably a control box with an alarm. The water inlet 23, the water outlet 24, the expansion tank 25, the valve assembly and the water pump assembly are connected through a pipeline assembly 27, and the water pump assembly is electrically connected with the control box 12 through the frequency converter 26. The expansion tank 25 comprises a tank body 28 and an air bag 13, the air bag 13 is located in the tank body 28, the air bag 13 and an inflation cavity is formed between the tank body 28, an expansion tank inlet and outlet 29 connected with the air bag 13 is arranged at the bottom of the tank body 28, an expansion tank pressure gauge 20 and an inflation nozzle 22 which are connected with the inflation cavity are arranged on the tank body 28 respectively, a connecting pipe 30 communicated with the inflation cavity is arranged on one side of the bottom of the tank body 28, a liquid immersion sensor 11 is arranged on the connecting pipe 30, and the connecting pipe 30 is connected with the liquid immersion sensor 11 through threads. The liquid immersion sensor 11 is connected with the control box 12. The connection pipe 30 is preferably an L-shaped elbow, the connection position between the connection pipe 30 and the inner wall of the tank 28 is a connection port, and the plane where the connection port is located and the inner wall of the tank are in the same smooth curved surface, that is, the connection port of the connection pipe 30 does not protrude inwards beyond the inner wall of the tank 28, so that an acute angle to the inside of the tank 28 is reduced.
The control box 12 can adopt a WSS-VFS-AE500 model control box produced by Jiangsu Hansheng ocean equipment technology Limited. The immersion sensor 11 may be manufactured by Trace Tek, Inc. under the model BintrTTSIM-1A.
The valve assembly comprises a first inlet valve 1, a second inlet valve 2, a first isolation valve 3, a second isolation valve 4, an expansion tank inlet valve 5, a third isolation valve 6, a safety valve 10, a discharge valve 7, a first check valve 9 and a second check valve 8; the water pump assembly comprises a first water pump 14, a first pressure gauge 16, a second pressure gauge 18, a second water pump 15, a third pressure gauge 17 and a fourth pressure gauge 19.
The water inlet 23 is respectively connected with the first inlet valve 1 and the second inlet valve 2; the first inlet valve 1, the first pressure gauge 16, the first water pump 14, the second pressure gauge 18, the first check valve 9 and the first isolation valve 3 are connected in sequence; the second inlet valve 2, the third pressure gauge 17, the second water pump 15, the fourth pressure gauge 19, the second check valve 8 and the second isolation valve 4 are connected in sequence; the first isolation valve is connected with the second isolation valve and then respectively connected with the water outlet and the expansion tank inlet valve 5; the expansion tank inlet valve 5 is respectively connected with the expansion tank inlet and outlet 29, the third isolation valve 6, the safety valve 10 and the discharge valve 7; the valve port of the third isolating valve 6 is provided with a pressure sensor 21 which is electrically connected with the control box 12; the pressure sensor 21 detects the pressure of the pipeline assembly, and the control box 12 controls the start and stop of the first water pump 14 or the second water pump 15; the first water pump 14 and the second water pump 15 are electrically connected to the frequency converter 26, respectively.
The safety valve 10 is installed on the inlet and outlet pipeline of the expansion tank 25 and is used for protecting the system from an overpressure condition. The discharge valve 7 is installed at the discharge outlet of the expansion tank 25, and the expansion tank inlet valve 5 is installed on the inlet pipeline of the expansion tank 25 to control the liquid to enter and exit and the tank body to be maintained. The charging connector 22 is mounted on the tank 28 and used for charging air between the tank 28 and the airbag 13.
The water inlet 23 is connected with the first inlet valve 1 and the second inlet valve 2 respectively and used for blocking the water inlet 23. The first check valve 9 and the second check valve 8 are respectively installed at the outlets of the first water pump 14 and the second water pump 15 to prevent the liquid from flowing back. The first isolation valve 3 and the second isolation valve 4 are respectively installed at the outlets of the first water pump 14 and the second water pump 15 and used for isolating the first water pump 14 and the second water pump 15 during pump maintenance. The first pressure gauge 16, the third pressure gauge 17, the second pressure gauge 18 and the fourth pressure gauge 19 are used for displaying the inlet and outlet pressure when the first water pump 14 and the second water pump 15 operate.

Claims (6)

1. The utility model provides a take liquid leakage detection's frequency conversion water supply installation, includes water inlet, delivery port, expansion tank, valve member, water pump assembly, pipeline subassembly, converter and control box, water inlet, delivery port, expansion tank, valve member and water pump assembly pass through the pipeline subassembly and link to each other, water pump assembly passes through the converter with the control box electricity is connected, its characterized in that: the expansion tank comprises a tank body and an air bag, the air bag is located in the tank body, an inflation cavity is formed between the air bag and the tank body, the bottom of the tank body is provided with an inlet and an outlet of the expansion tank connected with the air bag, the tank body is provided with an expansion tank pressure gauge and an inflation nozzle which are respectively connected with the inflation cavity, one side of the bottom of the tank body is provided with a connecting pipe communicated with the inflation cavity, the connecting pipe is provided with a liquid immersion sensor, and the liquid immersion sensor is connected with the control box.
2. The variable-frequency water supply device with the liquid leakage detection function according to claim 1, wherein: the valve assembly comprises a first inlet valve, a second inlet valve, a first isolation valve, a second isolation valve, an expansion tank inlet valve, a third isolation valve, a safety valve, a discharge valve, a first check valve and a second check valve; the water pump assembly comprises a first water pump, a first pressure gauge, a second water pump, a third pressure gauge and a fourth pressure gauge;
the water inlet is respectively connected with the first inlet valve and the second inlet valve; the first inlet valve, the first pressure gauge, the first water pump, the second pressure gauge, the first check valve and the first isolating valve are sequentially connected; the second inlet valve, the third pressure gauge, the second water pump, the fourth pressure gauge, the second check valve and the second isolation valve are sequentially connected; the first isolation valve is connected with the second isolation valve and then respectively connected with the water outlet and the expansion tank inlet valve; the expansion tank inlet valve is respectively connected with the expansion tank inlet and outlet, the third isolation valve, the safety valve and the discharge valve; a valve port of the third isolating valve is provided with a pressure sensor electrically connected with the control box; the first water pump and the second water pump are respectively and electrically connected with the frequency converter.
3. The variable-frequency water supply device with the liquid leakage detection function according to claim 1, wherein: the control box is a control box with an alarm.
4. The variable-frequency water supply device with the liquid leakage detection function according to claim 1, wherein: the connecting pipe is an L-shaped bent pipe.
5. The variable-frequency water supply device with the liquid leakage detection function according to claim 1, wherein: the connection part of the connecting pipe and the inner wall of the tank body is a connector, and the plane of the connector and the inner wall of the tank body are in the same smooth curved surface.
6. The variable-frequency water supply device with the liquid leakage detection function according to claim 1, wherein: the connecting pipe is connected with the liquid immersion sensor through threads.
CN202122316026.5U 2021-09-24 2021-09-24 Variable-frequency water supply device with liquid leakage detection function Active CN216865328U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122316026.5U CN216865328U (en) 2021-09-24 2021-09-24 Variable-frequency water supply device with liquid leakage detection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122316026.5U CN216865328U (en) 2021-09-24 2021-09-24 Variable-frequency water supply device with liquid leakage detection function

Publications (1)

Publication Number Publication Date
CN216865328U true CN216865328U (en) 2022-07-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116105916A (en) * 2023-01-18 2023-05-12 中国第一汽车股份有限公司 Air bag detection device for cold and hot source process water buffer tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116105916A (en) * 2023-01-18 2023-05-12 中国第一汽车股份有限公司 Air bag detection device for cold and hot source process water buffer tank

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