CN115950059A

CN115950059A - Ground source heat pump system working condition conversion valve water channeling judgment alarm device and method

Info

Publication number: CN115950059A
Application number: CN202310017729.9A
Authority: CN
Inventors: 张建忠; 朱锡冬; 沈乡城; 陈铁; 周斌; 石露露; 张滢; 宋海兵
Original assignee: Nanjing Architectural Design & Research Institute Co ltd
Current assignee: Nanjing Architectural Design & Research Institute Co ltd; Nanjing Olympic Sports Construction And Development Co ltd; Nanjing Yangtze River Urban Architectural Design Co Ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-11
Anticipated expiration: 2043-01-06
Also published as: CN115950059B

Abstract

A water channeling judgment and alarm device and method for a working condition conversion valve of a ground source heat pump system belong to the field of building energy conservation research. The system comprises a valve bank, a ground source heat pump unit, a ground source water pump, a ground source water collector, a ground source water distributor, a cold and hot water pump, an air conditioner cold and hot water collector and an air conditioner cold and hot water distributor, wherein the internal structure of the valve bank comprises a valve, a sensor, a drain pipe, a drain valve and a control box. The water system switching valve of the judging method and the device is a valve group consisting of double valves, and a judging and alarming device capable of judging whether the valve leaks water (water channeling) is formed by adding a section of drain pipe between a switching valve group, namely two valves and matching with a sensor and accessories. The invention has the advantages of high-efficiency system operation, better energy system stability and reliability and the like.

Description

Ground source heat pump system working condition conversion valve water channeling judgment alarm device and method

Technical Field

The invention relates to a ground source heat pump system, in particular to a device and a method for judging and alarming water channeling of a working condition conversion valve of the ground source heat pump system, and belongs to the field of building energy conservation research.

Background

The ground source heat pump system is a new heating, ventilating and air conditioning technology utilizing renewable energy sources, and is an efficient energy-saving technology in the field of buildings.

The shallow geothermal energy is used as renewable energy, and the ground source heat pump technology is used for heating, refrigerating and producing domestic hot water for buildings, so that the consumption of the traditional fossil fuel can be reduced, and the energy utilization structure can be adjusted.

At present, the conversion of winter and summer heat supply and refrigeration of a ground source heat pump system is generally realized by changing the flow of source side water and air conditioning water through valves arranged on a water system, the principle of the ground source heat pump system is shown in figure 1, two valves are respectively arranged between pipe sections of a ground source water supply/return side and a air conditioning water supply/return side, eight valves (valves V1-V8 in figure 1) are calculated, and the switching and the high-efficiency operation of the cold and hot working conditions of the ground source heat pump can be realized through the switch combination of 8 valves (the refrigeration working conditions open V1, V2, V7 and V8 and close V3, V4, V5 and V6, otherwise, the heating working conditions are reversed.

At present, for a ground source heat pump system, the following technical problems still exist in actual operation and need to be solved:

1. the operation and maintenance of the machine room are generally weak.

The artificial operation and maintenance are limited by a visual monitor and signal feedback of an accessed automatic control system, and the detection capability of the pipeline section and the valve accessory which are not counted yet and still play an important role is weak.

2. If the eight valves for switching the working conditions of the ground source heat pump in winter and summer are not closed during the working condition switching, the air conditioning water and the ground source water which are to be separated can be mixed with each other, so that the loss and waste of the energy supply at the demand side are caused, the energy efficiency of the ground source heat pump system is reduced, the reduction of the energy efficiency of a ground source heat pump unit and a water pump is further influenced, and the water temperature at the demand side of a user is difficult to ensure.

3. When the working pressure of the air conditioner side far exceeds the working pressure of the ground source side water system, the air conditioner water and the ground source water are easy to damage the ground pipe heat exchange system due to water channeling.

4. The untight closing of the valve cannot be found in time.

Cause eight not tight reasons of closing when valve operating mode conversion more, include: the quality problems or improper selection of the valve, misoperation of workers, long-term abrasion and the like are common in engineering, but the valve is generally not easy to find and investigate in early stage, when the power supply and water supply temperature is obviously affected, a lot of energy resources are wasted, and the damage to the ground source side pipe, the valve and the instrument due to water channeling is possible.

Disclosure of Invention

In order to solve the technical problems, the invention provides a water channeling judgment and alarm device for a ground source heat pump air conditioner working condition conversion valve bank, which comprises a ground source heat pump unit, a ground source water pump, a ground source water collector, a ground source water distributor, a cold and hot water pump, an air conditioner cold and hot water collector, an air conditioner cold and hot water distributor and 8 on-off devices, wherein the ground source heat pump unit is connected with the ground source water collector;

the ground source heat pump unit comprises a condenser and an evaporator, wherein the condenser comprises a condenser water inlet and a condenser water outlet, and the evaporator comprises an evaporator water inlet and an evaporator water outlet;

the 8 on-off devices are respectively the 1 st to the 8 th on-off devices;

the ground source water collector is divided into two pipelines after passing through the ground source water pump through the pipeline, and one pipeline is connected to a water inlet of a condenser of the ground source heat pump unit after passing through a first on-off device 1; the other pipeline is connected to a water inlet of an evaporator of the ground source heat pump unit through a3 rd on-off device; the water outlet of the condenser of the ground source heat pump unit is respectively connected into a ground source water separator and an air conditioner cold and hot water separator through a2 nd on-off device and a 6 th on-off device by pipelines;

the cold and hot water collector of the air conditioner is divided into two pipelines after passing through a cold and hot water pump through a pipeline, and one pipeline is connected with a water inlet of a condenser of the ground source heat pump unit after passing through a 5 th on-off device; the other pipeline is connected to a water inlet of an evaporator of the ground source heat pump unit through a 7 th on-off device; the water outlet of the evaporator of the ground source heat pump unit is connected into a ground source water separator and an air conditioner cold and hot water separator through a4 th on-off device and a 8 th on-off device respectively through pipelines;

the on-off device is a valve group, the valve group comprises two valves, namely a valve 16, a valve 17, a drain pipe and a drain valve, the two valves are connected in series, namely the valve 16 and the valve 17 are connected in series, one end of the drain pipe is connected with the drain valve, and the other end of the drain pipe is connected into a pipeline between the valve 16 and the valve 17;

the valve banks have the same structure, and the 8 on-off devices are respectively a valve bank 1, a valve bank 2, a valve bank 3, a valve bank 4, a valve bank 5, a valve bank 6, a valve bank 7 and a valve bank 8.

On one hand, by adding a section of water pipe (a drain pipe or a signal pipe) between the two valves, namely the valve 16 and the valve 17, when the

valves

16 and 17 are closed and the drain valve is opened, if the drain valve generates water flow, the invention can judge that the air-conditioning side water and the ground source side water generate water channeling mutually, thereby skillfully solving the technical problem that the air-conditioning water and the ground source water which are to be separated cannot be judged to generate water channeling when the working conditions of the ground source heat pump are switched in winter and summer.

When the valve 16 and the valve 17 are opened and the drain valve is closed, if water flow occurs in the drain valve, the damage of the drain valve can be judged.

On the other hand, a drain valve is arranged on a drain pipe added between the valve 16 and the valve 17, when leakage occurs due to damage of the valve 16 and/or the valve 17, the drain valve can be opened emergently to release pressure, and further, damage to a ground source side pipe, the valve and an instrument of the ground source heat pump system due to water channeling and pressure difference between air-conditioning water and ground source water can be prevented.

Thirdly, each valve group of the invention is provided with 2 valves, namely two valves of a valve 16 and a valve 17, thereby reducing the water channeling probability of the air-conditioning water side and the ground source water side, prolonging the service life of the ground source heat pump system, and solving the problem that the ground pipe heat exchange system is easily damaged due to the water channeling of the air-conditioning water and the ground source water when the working pressure of the air-conditioning side far exceeds the working pressure of the ground source water system;

fourthly, each valve group is provided with 2 valves, a drain pipe or a signal pipe and a drain valve, and under the combined action of the 2 valves, the air-conditioning water and the ground source water are prevented from flowing into each other, so that the problems that the energy efficiency of a ground source heat pump system is reduced, the energy efficiency of a ground source heat pump unit and a water pump is further reduced and the water temperature of a user demand side is difficult to ensure due to the loss and waste of energy supply at the demand side caused by the flowing of the air-conditioning water and the ground source water are solved.

Fifthly, each valve group is provided with 2 valves and a drain pipe or a signal pipe, so that the problem that the valve cannot be closed tightly in time is solved skillfully, and energy resources are avoided.

Sixthly, each valve group is provided with three valves, namely a valve 16, a valve 17 and a drain valve, when any valve in the valve group is damaged, the other 2 valves can be closed and the ground source water pump or the cold and hot water pump can be correspondingly closed under the condition that the whole system is not shut down, the replacement of the valve is carried out, the problem that the system is required to be stopped to operate due to the replacement of the valve is solved, the fact that the temperature of a resident house or the whole building can be kept constant during the replacement of accessories of the ground source heat pump system is ensured, and the stability and the reliability of the ground source heat pump system are improved.

Furthermore, each valve group also comprises a sensor, an automatic control line and a controller, wherein the sensor is arranged in the drain pipe; the sensor is in electric signal connection with the controller through an automatic control line; the sensor is a pressure sensor and is used for detecting whether water flow pressure exists in the pipeline of the water drainage pipe or not; when the sensor detects that the water flow pressure exists in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, and the controller carries out water channeling reminding.

Furthermore, the controller is electrically connected with an alarm, and when water channeling occurs, the controller gives an alarm through the alarm.

According to the invention, whether the water flow pressure exists in the drain pipe is sensed through the related sensor, so that the controller is informed to carry out water channeling reminding, the complexity of judging the water channeling of the ground source heat pump air conditioner working condition conversion valve group is reduced, and the intellectualization of the ground source heat pump system is improved.

Furthermore, the drain valve is an electric valve and is in electric signal connection with the controller through an automatic control line;

when the sensor does not detect the water flow pressure in the drain pipe, the sensor signal is fed back to the controller through the automatic control line, the controller sends an opening instruction to the drain valve through the automatic control line, and the drain valve opens the valve.

When the sensor detects that the water pressure exists in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, the controller sends a closing instruction to the drain valve through the automatic control line, and the drain valve closes the valve.

Through to the detection of sensor to having or not rivers pressure in the drain pipe way, give the controller with signal transmission, the controller is based on the signal that detects, gives in step down and opens or close the instruction and give the drain valve, and the drain valve opens or close the valve, and specific saying so, when the sensor did not detect to have rivers pressure in the drain pipe way, sensor signal feeds back to the controller through the automatic control line, and the controller gives the drain valve through the automatic control line assignment opening instruction, and the valve is opened to the drain valve.

When the sensor detects that the water flow pressure exists in the drain pipe, the sensor signal is fed back to the controller through the automatic control line, the controller sends a closing instruction to the drain valve through the automatic control line, and the drain valve closes the valve.

The problem that the manual work is difficult to judge whether the drain valve is in the opening state or the closing state is solved, the problem that the valve is too many, and common residents are difficult to master the operation problem that the valve is opened or closed at the bottom is solved, and the operation difficulty of the residents is reduced.

And the problem that the ground pipe heat exchange system is easily damaged due to the air conditioning water and the ground source water channeling caused by misoperation is solved.

Meanwhile, the problem that the manual valve is not closed tightly is solved.

Furthermore, each valve group is a linkage device, namely the valve 16, the valve 17 and the drain valve are linkage electric valves, the valve 16 and the valve 17 are in electric signal connection with the controller through automatic control lines, when the controller gives opening instructions to the valve 16 and the valve 17, the linkage gives closing instructions to the drain valve, the valve 16 and the valve 17 are opened, and the drain valve is closed; when the controller gives closing instructions to the valve 16 and the valve 17, the controller is linked to give opening instructions to the drain valve, the valve 16 and the valve 17 are closed, and the drain valve is opened.

By the linkage control of the valve 16, the valve 17 and the drain valve, the operation problem that the valve is too many and common residents are difficult to master whether the valve is opened or closed from the bottom is further solved, and the difficulty of the residents in operating the ground source heat pump pipe valve for switching is reduced.

Further, the sensor is a water flow sensor; each of the valve groups is provided with a valve seat,

when the

valves

16 and 17 are opened and the drain valve is closed, if the sensor detects that water flows in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, and the controller reminds the user of water channeling;

if the valve 16 and the valve 17 are opened, and simultaneously, the drain valve is opened, and the controller reminds an operation error; if the sensor detects that water flow exists in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, and the controller performs water leakage reminding;

when the

valves

16 and 17 are closed and the drain valve is opened and the sensor detects that water flows in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, and the controller reminds the user of water channeling;

if the valve 16 and the valve are closed, and the drain valve 20 is closed at the same time, the controller performs operation error reminding; if the sensor detects that water flows in the drain pipe, the sensor signal is fed back to the controller through the automatic control line, and the controller carries out water channeling reminding.

Through the linkage control of the valve 16, the valve 17, the drain valve and the sensor, the difficulty of the resident in operating the ground source heat pump pipe valve for switching is reduced, and the problem that whether the air conditioning water and the ground source water send the water channeling or not can not be judged and early warned due to the fact that the resident forgets to open or close the drain valve is solved.

Further, when the ground source heat pump system is in a summer working condition, the four valve groups 1, 2, 7 and 8 are opened simultaneously, namely the four valve groups 1, 2, 7 and 8 are opened, a valve 16 and a valve 17 of each of the four valve groups are opened, and a drain valve is closed;

the four valve groups are closed simultaneously, namely the valve group 3, the valve group 4, the valve group 5 and the valve group 6, a valve 16 and a valve 17 of each valve group in the four valve groups are closed, and a drain valve is opened;

the high-temperature medium takes a ground source water pump as a power source, flows through a ground source water collector, the ground source water pump, a condenser of a ground source heat pump unit, a ground source water separator and a shallow ground surface heat exchange source, and is subjected to circulating reciprocation; the low-temperature medium takes a cold and hot water pump as a power source, flows through an air conditioner cold and hot water collector, the cold and hot water pump, an evaporator of the ground source heat pump unit, an air conditioner cold and hot water separator and a heat exchange source of a terminal user, and is circularly reciprocated.

When the ground source heat pump system is in a summer working condition, the four

valve banks

3, 4, 5 and 6 are closed simultaneously, namely the four

valve banks

3, 4, 5 and 6 are closed, the valve 16 and the valve 17 of each of the four valve banks are closed, and the drain valve is opened; whether the drain valves of the four valve groups, namely the valve group 3, the valve group 4, the valve group 5 and the valve group 6 leak water or not is judged, and whether the valve group 3, the valve group 4, the valve group 5 or the valve group 6 has water leakage risk or not can be judged.

Meanwhile, each valve bank is provided with two valves, so that the problem that the ground pipe heat exchange system is damaged due to water channeling caused by damage or untight closing of one valve is solved.

Further, when the ground source heat pump system is in a working condition in winter, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed simultaneously, namely the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed, a valve 16 and a valve 17 of each of the four valve groups are closed, and a drain valve is opened;

the valve group comprises a valve group 3, a valve group 4, a valve group 5 and a valve group 6, wherein the four valve groups are opened simultaneously; namely a valve group 3, a valve group 4, a valve group 5 and a valve group 6, wherein a valve 16 and a valve 17 of each valve group in the four valve groups are opened, and a drain valve is closed;

the low-temperature medium takes a ground source water pump as a power source, flows through a ground source water collector, the ground source water pump, an evaporator of a ground source heat pump unit, a ground source water separator and a shallow ground surface heat exchange source detector, and is circularly reciprocated; the high-temperature medium takes a cold and hot water pump as a power source, flows through an air conditioner cold and hot water collector, the cold and hot water pump, a condenser of the ground source heat pump unit, an air conditioner cold and hot water separator and a tail end user heat exchange source detector, and is circulated and reciprocated.

When the ground source heat pump system is in a working condition in winter, whether the valve bank 1, the valve bank 2, the valve bank 7 or the valve bank 8 has water leakage risk can be judged by judging whether the drain valve of each valve bank of the four valve banks 1, 2, 7 and 8 leaks water.

Meanwhile, each valve group is provided with two valves, so that the problem that the ground pipe heat exchange system is damaged due to water channeling caused by damage or untight closing of one valve is solved.

Further, the sensor (18) is a pressure gauge, or a flow meter, or a water flow indicator.

The invention also provides a water channeling judgment method for the ground source heat pump air conditioner working condition conversion valve set, which comprises a ground source heat pump unit, a ground source water pump, a ground source water collector, a ground source water distributor, a cold and hot water pump, an air conditioner cold and hot water collector, an air conditioner cold and hot water distributor and 8 on-off devices;

the 8 on-off devices are respectively the 1 st to 8 th on-off devices;

the cold and hot water collector of the air conditioner is divided into two pipelines after passing through a cold and hot water pump through the pipeline, and one pipeline is connected to a water inlet of a condenser of the ground source heat pump unit after passing through a 5 th on-off device; the other pipeline is connected to a water inlet of an evaporator of the ground source heat pump unit through a 7 th on-off device; the water outlet of the evaporator of the ground source heat pump unit is respectively connected into a ground source water separator and an air conditioner cold and hot water separator through a4 th on-off device and a 8 th on-off device by pipelines;

the on-off device is a valve group, the valve group comprises a valve 16, a valve 17, a drain pipe and a drain valve, the valve 16 and the valve 17 are connected in series, one end of the drain pipe is connected with the drain valve, and the other end of the drain pipe is connected to a pipeline between the valve 16 and the valve 17;

the valve banks have the same structure, and the 8 on-off devices are respectively a valve bank 1, a valve bank 2, a valve bank 3, a valve bank 4, a valve bank 5, a valve bank 6, a valve bank 7 and a valve bank 8;

the method comprises the following steps:

s1, when a ground source heat pump system is in a summer working condition, a valve group 1, a valve group 2, a valve group 7 and a valve group 8 are simultaneously opened, namely the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are opened, a valve 16 and a valve 17 of each of the four valve groups are opened, and a drain valve is closed;

If water flows out of the opened drain valve, judging that the valve bank corresponding to the drain valve has water channeling;

if water flows out of the closed drain valve, the drain valve is judged to be damaged.

S2, when the ground source heat pump system is in a working condition in winter, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed at the same time, namely the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed, a valve 16 and a valve 17 of each of the four valve groups are closed, and a drain valve is opened;

the low-temperature medium takes a ground source water pump as a power source, flows through a ground source water collector, the ground source water pump, an evaporator of a ground source heat pump unit, a ground source water separator and a shallow ground surface heat exchange source detector, and is circularly reciprocated; the high-temperature medium flows through an air conditioner cold and hot water collector, the cold and hot water pump, a condenser of the ground source heat pump unit, an air conditioner cold and hot water separator and a heat exchange source measurement of a terminal user by taking a cold and hot water pump as a power source, and is circulated and reciprocated;

Furthermore, each valve group also comprises a sensor, an automatic control line and a controller, wherein the sensor is arranged in the drain pipe; the sensor is in electric signal connection with the controller through an automatic control line; the sensor is a pressure sensor and is used for detecting whether water flow pressure exists in the pipeline of the drainage pipe or not; when the sensor detects that the water flow pressure exists in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, and the controller carries out water channeling reminding.

when the sensor does not detect the water flow pressure in the drain pipe, the signal of the sensor is fed back to the controller through the automatic control line, the controller sends an opening instruction to the drain valve through the automatic control line, and the drain valve opens the valve.

Has the advantages that:

the invention relates to a method and a device for judging water channeling of a working condition conversion valve of a ground source heat pump system;

firstly, eight valves of a ground source heat pump water system are designed into a valve group consisting of double valves, and a section of water pipe and a drain valve are added between a conversion valve group, namely two valves, and whether the drain valve has water is judged, so that the technical problem that the water channeling condition of air conditioning water and ground source water which are to be separated cannot be judged when the working conditions of the ground source heat pump in winter and summer are switched is solved ingeniously.

Therefore, on one hand, the problem that the water temperature on the user demand side is difficult to guarantee due to the fact that the energy efficiency of the ground source heat pump system is reduced and the reduction of the energy efficiency of the ground source heat pump unit and the water pump is further influenced due to the fact that the energy supply of the demand side is lost and wasted due to the fact that the air conditioning water and the ground source water are mixed.

On the other hand, the problem that the ground pipe heat exchange system is easily damaged due to the fact that air-conditioning water and ground source water are mixed when the working pressure of the air-conditioning side far exceeds the working pressure of the ground source side water system is solved; and thirdly, the problem that the untight closing of the valve cannot be found in time is solved skillfully, and the damage to the pipes, the valve and the instrument at the source side of the ground source heat pump system caused by water channeling and the pressure difference between the air conditioning water and the ground source water is avoided.

Secondly, the difficult problem that the operation and maintenance of the machine room are weak is solved.

Particularly, the problem that the artificial operation and maintenance is limited by a visual monitor and signal feedback of an accessed automatic control system, and the detection capability of the pipe section and the valve accessory which are not counted and still play an important role is poor is solved.

Drawings

Fig. 1 is a schematic diagram of a ground source heat pump system.

Fig. 2 is a schematic structural diagram of a water channeling determination device of a ground source heat pump system working condition conversion valve.

Fig. 3 is a schematic view of a valve block structure.

Fig. 4 is a schematic diagram of the ground source heat pump system according to the present invention.

Detailed Description

Example 1:

as shown in fig. 2 and 3, the water channeling judgment and alarm device for the ground source heat pump air-conditioning working condition conversion valve bank comprises a ground source heat pump unit 9, a ground source water pump 10, a ground source water collector 11, a ground source water separator 12, a cold and hot water pump 13, an air-conditioning cold and hot water collector 14, an air-conditioning cold and hot water separator 15 and 8 on-off devices;

the ground source heat pump unit 9 comprises a condenser and an evaporator, wherein the condenser comprises a condenser water inlet and a condenser water outlet, and the evaporator comprises an evaporator water inlet and an evaporator water outlet;

furthermore, the number of the ground source heat pump units 9 is at least 1, and the corresponding number is set according to the area of the residential house or the number of rooms.

The 8 on-off devices are respectively the 1 st to 8 th on-off devices;

the ground source water collector 11 is divided into two pipelines after passing through the ground source water pump 10 through the pipeline, and one pipeline is connected to the water inlet of the condenser of the ground source heat pump unit 9 after passing through the 1 st on-off device; the other pipeline is connected to the water inlet of the evaporator of the ground source heat pump unit 9 through a3 rd on-off device; the water outlet of the condenser of the ground source heat pump unit 9 is respectively connected to a ground source water separator 12 and an air conditioner cold and hot water separator 15 through a2 nd on-off device and a 6 th on-off device by pipelines;

the cold and hot water collector 14 of the air conditioner is divided into two pipelines after passing through the cold and hot water pump 13 through the pipeline, and one pipeline is connected to the water inlet of the condenser of the ground source heat pump unit 9 after passing through the 5 th on-off device; the other pipeline is connected to the water inlet of the evaporator of the ground source heat pump unit 9 through a 7 th on-off device; the water outlet of the evaporator of the ground source heat pump unit 9 is respectively connected to a ground source water separator 12 and an air conditioner cold and hot water separator 15 through a4 th on-off device and a 8 th on-off device by pipelines;

as shown in fig. 3, the on-off device is a valve set, the valve set includes a valve 16, a valve 17, a drain pipe 19, and a drain valve 20, the valve 16 and the valve 17 are connected in series, one end of the drain pipe 19 is connected to the drain valve 20, and the other end is connected to a pipeline between the valve 16 and the valve 17;

Further, as shown in fig. 3, each valve set further includes a sensor 18, a self-control line and a controller, the sensor 18 is disposed in the drain pipe 19; the sensor 18 is in electrical signal connection with the controller through an automatic control line; the sensor 18 is a pressure sensor and is used for detecting whether water flow pressure exists in a pipeline of the drain pipe 19; when the sensor 18 detects that the water flow pressure exists in the pipeline of the water discharge pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control line, and the controller reminds of water flowing.

Further, the drain valve 20 is an electric valve, and the drain valve 20 is electrically connected with the controller 21 through an automatic control line;

when the sensor 18 does not detect the water flow pressure in the pipeline of the drain pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control line, the controller sends an opening instruction to the drain valve 20 through the self-control line, and the drain valve 20 opens the valve.

When the sensor 18 detects that the water pressure exists in the pipeline of the drain pipe 19, the signal of the sensor 18 is fed back to the controller 21 through the self-control line, the controller 21 sends a closing instruction to the drain valve 20 through the self-control line, and the drain valve 20 closes the valve.

Further, the valve 16, the valve 17 and the drain valve 20 are linked electrically operated valves, the valve 16 and the valve 17 are in electrical signal connection with the controller 21 through an automatic control line, when the controller 21 gives an opening instruction to the valve 16 and the valve 17, the controller is linked to give a closing instruction to the drain valve 20, the valve 16 and the valve 17 are opened, and the drain valve 20 is closed; when the controller 21 gives a closing instruction to the valve 16 and the valve 17, the controller is linked to give an opening instruction to the drain valve 20, the valve 16 and the valve 17 are closed, and the drain valve 20 is opened.

Further, the sensor 18 is a water flow sensor;

when the valve 16 and the valve 17 are opened and the drain valve 20 is closed, if the sensor 18 detects that water flows in the pipeline of the drain pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control line, and the controller carries out water channeling reminding;

if the valve 16 and the valve 17 are opened and the drain valve 20 is opened at the same time, the controller reminds an operation error; if the sensor 18 detects that water flows in the pipeline of the water discharge pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control wire, and the controller reminds of water leakage;

when the valve 16 and the valve 17 are closed and the drain valve 20 is opened, if the sensor 18 detects that water flows in the pipeline of the drain pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control line, and the controller performs water channeling reminding;

if the valve 16 and the valve 17 are closed and the drain valve 20 is closed at the same time, the controller performs operation error reminding; if the sensor 18 detects that water flows in the pipeline of the water discharge pipe 19, the signal of the sensor 18 is fed back to the controller through the self-control line, and the controller reminds of water flowing.

Further, when the ground source heat pump system is in a summer working condition, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are opened, the

valves

16 and 17 of the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are opened, and the drain valve 20 is closed;

the valve group 3, the valve group 4, the valve group 5 and the valve group 6 are closed, the

valves

16 and 17 of the valve group 3, the valve group 4, the valve group 5 and the valve group 6 are closed, and the drain valve 20 is opened;

the high-temperature medium is measured by taking a ground source water pump 10 as a power source, flows through a ground source water collector 11, the ground source water pump 10, a condenser of a ground source heat pump unit 9, a ground source water separator 12 and a shallow ground surface heat exchange source, and is circularly reciprocated; the low-temperature medium takes a cold and hot water pump 13 as a power source, flows through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, an evaporator of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source measurement of a tail end user, and is circulated and reciprocated.

Further, when the ground source heat pump system is in a working condition in winter, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed, the

valves

16 and 17 of the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed, and the drain valve 20 is opened;

opening the valve group 3, the valve group 4, the valve group 5 and the valve group 6; the

valves

16 and 17 of the

valve groups

3, 4, 5 and 6 are opened, and the drain valve 20 is closed;

the low-temperature medium takes a ground source water pump 10 as a power source, flows through a ground source water collector 11, the ground source water pump 10, an evaporator of a ground source heat pump unit 9, a ground source water separator 12 and a shallow ground surface heat exchange source for heat measurement, and is circularly reciprocated; the high-temperature medium is circulated and reciprocated by taking a cold and hot water pump 13 as a power source, flowing through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, a condenser of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source of a terminal user.

Further, the sensor 18 is a pressure gauge, or a flow meter, or a water flow indicator.

Example 2:

as shown in fig. 2 and 4, a method for judging water channeling of a ground source heat pump air conditioning working condition switching valve set comprises a ground source heat pump unit 9, a ground source water pump 10, a ground source water collector 11, a ground source water separator 12, a cold and hot water pump 13, an air conditioner cold and hot water collector 14, an air conditioner cold and hot water separator 15 and 8 on-off devices;

the 8 on-off devices are respectively the 1 st to 8 th on-off devices;

the cold and hot water collector 14 of the air conditioner is divided into two pipelines after passing through the cold and hot water pump 13 through the pipeline, and one pipeline is connected to the water inlet of the condenser of the ground source heat pump unit 9 after passing through the 5 th on-off device; the other pipeline is connected into the water inlet of the evaporator of the ground source heat pump unit 9 through a 7 th on-off device; a water outlet of an evaporator of the ground source heat pump unit 9 is connected into a ground source water separator 12 and an air conditioner cold and hot water separator 15 through pipelines respectively through a4 th on-off device and a 8 th on-off device;

the method comprises the following steps:

s1, when a local source heat pump system is in a working condition in winter; closing the valve group 1, the valve group 2, the valve group 7 and the valve group 8, closing the

valves

16 and 17 of the valve group 1, the valve group 2, the valve group 7 and the valve group 8, and opening the drain valve 20;

valves

16 and 17 of the

valve groups

3, 4, 5 and 6 are opened, and the drain valve 20 is closed;

the low-temperature medium takes a ground source water pump 10 as a power source, flows through a ground source water collector 11, the ground source water pump 10, an evaporator of a ground source heat pump unit 9, a ground source water separator 12 and a shallow ground surface heat exchange source for heat measurement, and is circularly reciprocated; the high-temperature medium flows through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, a condenser of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source measurement of a terminal user by taking a cold and hot water pump 13 as a power source, and is circulated and reciprocated;

if water flows out of the opened drain valve 20, judging that the valve bank corresponding to the drain valve 20 has water channeling;

if water flows out of the closed drain valve 20, judging that the drain valve 20 is damaged;

s2, when the ground source heat pump system is in a summer working condition, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are opened, the

valves

closing the valve group 3, the valve group 4, the valve group 5 and the valve group 6, closing the valve 16 and the valve 17 of the valve group 3, the valve group 4, the valve group 5 and the valve group 6, and opening the drain valve 20;

the high-temperature medium is measured by taking a ground source water pump 10 as a power source, flows through a ground source water collector 11, the ground source water pump 10, a condenser of a ground source heat pump unit 9, a ground source water separator 12 and a shallow ground surface heat exchange source, and is circularly reciprocated; the low-temperature medium takes a cold and hot water pump 13 as a power source, flows through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, an evaporator of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source measurement of a tail end user, and is circulated and reciprocated;

if water flows out of the closed drain valve 20, it is determined that the drain valve 20 is damaged.

Further, as shown in fig. 3, each valve set further includes a sensor 18, a self-control line and a controller, the sensor 18 is disposed in the drain pipe 19; the sensor 18 is in electric signal connection with the controller through an automatic control line; the sensor 18 is a pressure sensor and is used for detecting whether water flow pressure exists in a pipeline of the drain pipe 19; when the sensor 18 detects that water flow pressure exists in the pipeline of the water discharge pipe 19, a signal of the sensor 18 is fed back to the controller through the automatic control line, and the controller carries out water channeling reminding;

the drain valve 20 is an electric valve, and the drain valve 20 is in electric signal connection with the controller 21 through an automatic control line;

Example 3:

the present embodiment aims to provide a method and a device for judging water channeling of a working condition switching valve of a ground source heat pump system, where the device for judging water channeling of a working condition switching valve of a ground source heat pump system comprises a valve bank 1, a valve bank 2, a valve bank 3, a valve bank 4, a valve bank 5, a valve bank 6, a valve bank 7, a valve bank 8, a ground source heat pump unit 9, a ground source water pump 10, a ground source water collector 11, a ground source water separator 12, a cold and hot water pump 13, an air conditioner cold and hot water collector 14, and an air conditioner cold and hot water separator 15;

the internal structures of the valve groups 1-8 are composed of a valve 16, a valve 17, a sensor 18, a drain pipe 19, a drain valve 20 and a controller 21.

Further, the controller is a control box.

The valve group 3, the valve group 4, the valve group 5 and the valve group 6 can know whether the valve leaks or not by judging whether water exists in the drain pipe or not through the valve 16, the valve 17, the sensor 18, the drain pipe 19, the drain valve 20 and the controller 21 in the internal structure, can directly visually and manually judge and interlock the valve to a display alarm device in the controller 21, and can also be an alarm device in the linkage controller 21 indirectly sensed by a sensing device.

When the ground source heat pump system is in a summer working condition, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are opened, and the valve group 3, the valve group 4, the valve group 5 and the valve group 6 are closed.

The high-temperature medium is measured by taking the ground source water pump 10 as a power source, flowing through the ground source water collector 11, the ground source water pump 10, the condenser of the ground source heat pump unit 9, the ground source water separator 12 and the shallow ground surface heat exchange source, and circularly reciprocating.

The low-temperature medium takes a cold and hot water pump 13 as a power source, and flows through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, an evaporator of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source of a terminal user, and is subjected to cyclic reciprocation.

When the ground source heat pump system is in working condition in winter, the valve group 1, the valve group 2, the valve group 7 and the valve group 8 are closed, and the valve group 3, the valve group 4, the valve group 5 and the valve group 6 are opened.

The low-temperature medium takes a ground source water pump 10 as a power source, flows through a ground source water collector 11, the ground source water pump 10, an evaporator of a ground source heat pump unit 9, a ground source water separator 12 and a shallow ground surface heat exchange source for heat measurement, and is circularly reciprocated.

The high-temperature medium is circulated and reciprocated by taking a cold and hot water pump 13 as a power source, flowing through an air conditioner cold and hot water collector 14, the cold and hot water pump 13, a condenser of the ground source heat pump unit 9, an air conditioner cold and hot water separator 15 and a heat exchange source of a terminal user.

The valve group 1, the valve group 2, the valve group 7 and the valve group 8 can know whether the valves leak or not by judging whether water exists in the drain pipes or not through the

valves

16, 17, 18, 19, 20 and 21 in the internal structures, can directly visually and manually judge and interlock to a display alarm device in the controller 21, and can also be an alarm device in the linkage controller 21 after indirectly sensing through a sensing device.

Eight valves (V1 ~ V8, see figure 1) of water system are all replaced to valves (1~8, see figure 2) that the bivalve is constituteed to in the conversion valves between two valves, through adding one section water pipe (drain pipe or signal pipe) and supporting sensor and accessory again, constitute judgement, the alarm device that can judge whether the valve leaks (scurries water).

When the two valves are closed, no water is available after the intermediate water is discharged.

The valve can be known whether to leak or not only by judging whether water exists in the drain pipe (signal pipe) or not, and the valve can be judged manually, and can also be alarmed through an alarm after being sensed by a related sensor.

Therefore, when the ground source heat pump system is in operation, the mutual channeling of air-conditioning water and ground source side water and unnecessary loss of energy are avoided, the cost of later operation and maintenance of a machine room is saved, the efficient operation of the ground source heat pump system is ensured, and the stability and reliability of a building energy system and the quality of an air conditioner are improved.

Example 4:

the present embodiment is different from embodiment 3 in that: the controller 21 is electrically connected with the valve group 1, the valve group 2, the valve group 3, the valve group 4, the valve group 5, the valve group 6, the valve group 7 and the valve group 8 through communication points and automatic control lines.

Further, the controller 21 has at least 32 communication points, or the controllers have 8 communication points, and each controller has at least 4 communication points;

the communication point a1 in the controller 21 is connected to the valve 16 through a pilot line,

the communication point a2 in the controller 21 is connected to the valve 17 through a pilot line,

the communication point a3 in the controller 21 is connected with the sensor 18 through a self-control line,

the communication point a4 in the controller 21 is connected to the drain valve 20 through an automatic control line,

when the ground source heat pump system is in a summer working condition, the air conditioner working condition conversion valve group 5 and the air conditioner working condition conversion valve 6 are closed, and the ground source side conversion valve group 3 and the valve group 4 are closed.

The ground source side pipeline and the air conditioner side pipeline are separated through an air conditioner working condition conversion valve 5, an air conditioner working condition conversion valve 6, a ground source side conversion valve group 3 and a valve group 4.

The high-temperature water of the ground source side pipeline is used as a power measure through the condenser side of the ground source heat pump unit and the water pump, and forms heat release circulation with the shallow geothermal energy.

The low-temperature water of the air-conditioning side pipeline is used as a power measure through the evaporator side of the ground source heat pump unit and the water pump, and forms a heat absorption cycle with the tail end demand side.

When the local source heat pump system is in summer, if the air conditioner working condition conversion valve group 5 or the air conditioner working condition conversion valve group 6 is not completely closed, the water quantity of the ground source side pipeline or the air conditioner side pipeline leaks through the air conditioner conversion valve group 5 or the air conditioner conversion valve group 6, or the water quantity of the ground source side conversion valve group 3 and the valve group 4 leaks,

first, the pressure sensor 18 receives a pressure signal generated by the water flow, and feeds the pressure signal back to the communication point a3 in the controller 21 through the self-control line.

Next, the communication point a4 in the controller 21 commands the water discharge valve 20 (drain valve) to be activated, and leaks are discharged through the drain detection line.

And thirdly, a display screen in the controller 21 gives an alarm, the air-conditioning working condition conversion valve group 5 and the air-conditioning working condition conversion valve group 6 are completely closed manually, or the communication point a1 and the communication point a2 in the controller 21 respectively and electrically close the valve 16 and the valve 17 in the air-conditioning working condition conversion valve group 5 and the air-conditioning working condition conversion valve group 6 through automatic control lines.

The pressure sensor 18 then no longer monitors the pressure of the water flow in the pipeline and feeds back to the controller 21.

Finally, the controller 21 commands the drain valve 20 (drain valve) to close via the pilot line.

In conclusion, the air conditioner working condition switching valve group completes a set of water channeling judgment and alarm process.

And when the local source heat pump system is in working condition in winter, the air conditioner working condition conversion valve bank 5 and the air conditioner working condition conversion valve bank 6 are opened.

The medium water in the ground source side pipeline and the air conditioner side pipeline exchanges heat in the ground source heat pump unit 9, and the high-temperature water in the air conditioner side pipeline and the tail end demand side form heat release circulation by taking a condenser and a water pump of the ground source heat pump unit as power measures.

The low-temperature water of the ground source side pipeline is used as a power measure through an evaporator of the ground source heat pump unit and a water pump and forms heat absorption circulation with shallow geothermal energy.

When the ground source heat pump system is in working conditions in winter, the air conditioner working condition conversion valve group 5 and the air conditioner working condition conversion valve group 6 are opened, and the ground source side conversion valve group 3 and the valve group 4 are opened.

When the pressure sensor 18 detects the pressure of the water flow in the pipeline, the pressure is fed back to the controller 21 through a self-control line.

The communication point a4 in the controller 21 commands the drain valve 20 (drain valve) to close through the pilot line.

The device judges the switching condition of the working condition of the air conditioner in winter and summer by adding the drain pipeline and the valve accessories, and gives an alarm on the water channeling condition generated when the switching valve group is not completely closed.

The air conditioner working condition conversion valve group and the ground source side conversion valve group are on-off valves or two-position valves according to the valve control state.

The air-conditioning working condition conversion valve bank and the ground source side conversion valve bank can be ball valves, gate valves, stop valves and butterfly valves according to pipe diameters and fluid transmission and distribution requirements.

The air-conditioning working condition conversion valve bank and the ground source side conversion valve bank can be electric valves or manual valves according to the operation mode.

The drain valve (drain valve) can be a ball valve, a gate valve or a stop valve.

The connection mode of the water drain side pipeline, the air conditioner working condition conversion valve group and the ground source side conversion valve group can be threaded connection or welded connection.

The ground source side pipeline and the air conditioner side pipeline can be wired according to the actual ground source heat pump system pipeline and are kept unchanged or the positions of the ground source side pipeline and the air conditioner side pipeline are interchanged.

The communication point position in the controller can adjust the self feedback mechanism of the controller according to the input/output signal requirement of the external access terminal.

The controller is internally provided with an open source program, and can access a new terminal and participate in linkage control with the new terminal.

Claims

1. A water channeling judgment and alarm device of a ground source heat pump air conditioner working condition conversion valve set comprises a ground source heat pump unit (9), a ground source water pump (10), a ground source water collector (11), a ground source water distributor (12), a cold and hot water pump (13), an air conditioner cold and hot water collector (14), an air conditioner cold and hot water distributor (15) and 8 on-off devices;

the ground source heat pump unit (9) comprises a condenser and an evaporator, wherein the condenser comprises a condenser water inlet and a condenser water outlet, and the evaporator comprises an evaporator water inlet and an evaporator water outlet;

the 8 on-off devices are respectively the 1 st to 8 th on-off devices;

the ground source water collector (11) is divided into two pipelines after passing through a ground source water pump (10) through a pipeline, and one pipeline is connected to a water inlet of a condenser of the ground source heat pump unit (9) after passing through a first on-off device (1); the other pipeline is connected into a water inlet of an evaporator of the ground source heat pump unit (9) through a3 rd on-off device; a water outlet of a condenser of the ground source heat pump unit (9) is respectively connected into a ground source water separator (12) and an air conditioner cold and hot water separator (15) through a2 nd on-off device and a 6 th on-off device by pipelines;

the air conditioner cold and hot water collector (14) is divided into two pipelines after passing through a cold and hot water pump (13) through the pipeline, and one pipeline is connected to a condenser water inlet of the ground source heat pump unit (9) after passing through a 5 th on-off device; the other pipeline is connected to the water inlet of the evaporator of the ground source heat pump unit (9) through a 7 th on-off device; a water outlet of an evaporator of the ground source heat pump unit (9) is respectively connected into a ground source water separator (12) and an air conditioner cold and hot water separator (15) through a4 th on-off device and a 8 th on-off device by pipelines;

the method is characterized in that: the on-off device is a valve group, the valve group comprises a valve (16), a valve (17), a drain pipe (19) and a drain valve (20), the valve (16) and the valve (17) are connected in series, one end of the drain pipe (19) is connected with the drain valve (20), and the other end of the drain pipe is connected to a pipeline between the valve (16) and the valve (17);

the valve banks have the same structure, and the 8 on-off devices are respectively a valve bank (1), a valve bank (2), a valve bank (3), a valve bank (4), a valve bank (5), a valve bank (6), a valve bank (7) and a valve bank (8).

2. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 1, wherein: the automatic control system also comprises a sensor (18), an automatic control line and a controller, wherein the sensor (18) is arranged in the drainage pipe (19); the sensor (18) is in electric signal connection with the controller through an automatic control line; the sensor (18) is a pressure sensor and is used for detecting whether water flow pressure exists in a pipeline of the drain pipe (19); when the sensor (18) detects that the water flow pressure exists in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, and the controller reminds of water flowing.

3. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 2, characterized in that:

the drain valve (20) is an electric valve, and the drain valve (20) is in electric signal connection with the controller (21) through an automatic control line;

when the sensor (18) does not detect the water flow pressure in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, the controller sends an opening instruction to the drain valve (20) through the automatic control line, and the drain valve (20) opens the valve;

when the sensor (18) detects that the water flow pressure exists in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller (21) through the automatic control line, the controller (21) sends a closing instruction to the drain valve (20) through the automatic control line, and the drain valve (20) closes the valve.

4. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 3, wherein:

the valve (16), the valve (17) and the drain valve (20) are in linkage electric valve connection, the valve (16) and the valve (17) are in electric signal connection with the controller (21) through automatic control lines, when the controller (21) gives opening instructions to the valve (16) and the valve (17), the linkage gives closing instructions to the drain valve (20), the valve (16) and the valve (17) are opened, and the drain valve (20) is closed; when the controller (21) gives a closing instruction to the valve (16) and the valve (17), the controller is linked to give an opening instruction to the drain valve (20), the valve (16) and the valve (17) are closed, and the drain valve (20) is opened.

5. The water channeling judgment and alarm device of the ground source heat pump air conditioner working condition switching valve set as claimed in claim 3 or 4,

the sensor (18) is a water flow sensor;

when the valve (16) and the valve (17) are opened and the drain valve (20) is closed, if the sensor (18) detects that water flows in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, and the controller reminds water channeling;

if the valve (16) and the valve (17) are opened and the drain valve (20) is opened at the same time, the controller reminds an operation error; if the sensor (18) detects that water flows in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, and the controller reminds of water leakage;

when the valve (16) and the valve (17) are closed and the drain valve (20) is opened and if the sensor (18) detects that water flows in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, and the controller performs water channeling reminding;

if the valve (16) and the valve (17) are closed and the drain valve (20) is closed, the controller reminds an operation error; if the sensor (18) detects that water flows in the pipeline of the drain pipe (19), signals of the sensor (18) are fed back to the controller through the automatic control line, and the controller carries out water channeling reminding.

6. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 1, wherein:

when the ground source heat pump system is in a summer working condition, the valve group (1), the valve group (2), the valve group (7) and the valve group (8) are opened, the valves (16) and the valves (17) of the valve group (1), the valve group (2), the valve group (7) and the valve group (8) are opened, and the drain valve (20) is closed;

the valve group (3), the valve group (4), the valve group (5) and the valve group (6) are closed, the valve group (3), the valve group (4), the valve group (5), a valve (16) and a valve (17) of the valve group (6) are closed, and the drain valve (20) is opened;

the high-temperature medium takes a ground source water pump (10) as a power source, flows through a ground source water collector (11), the ground source water pump (10), a condenser of a ground source heat pump unit (9), a ground source water separator (12) and a shallow ground surface heat exchange source for heat exchange, and is circularly reciprocated; the low-temperature medium takes a cold and hot water pump (13) as a power source, flows through an air conditioner cold and hot water collector (14), the cold and hot water pump (13), an evaporator of a ground source heat pump unit (9), an air conditioner cold and hot water separator (15) and a heat exchange source of a terminal user, and is tested in a circulating reciprocating mode.

7. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 1, wherein:

when the ground source heat pump system is in a working condition in winter, the valve group (1), the valve group (2), the valve group (7) and the valve group (8) are closed, the valves (16) and the valves (17) of the valve group (1), the valve group (2), the valve group (7) and the valve group (8) are closed, and the drain valve (20) is opened;

the valve group (3), the valve group (4), the valve group (5) and the valve group (6) are opened; the valve group (3), the valve group (4), the valve group (5), a valve (16) and a valve (17) of the valve group (6) are opened, and the drain valve (20) is closed;

the low-temperature medium takes a ground source water pump (10) as a power source, flows through a ground source water collector (11), the ground source water pump (10), an evaporator of a ground source heat pump unit (9), a ground source water separator (12) and a shallow ground surface heat exchange source, and is measured in a circulating reciprocating manner; the high-temperature medium takes a cold and hot water pump (13) as a power source, flows through an air conditioner cold and hot water collector (14), the cold and hot water pump (13), a condenser of a ground source heat pump unit (9), an air conditioner cold and hot water separator (15) and a heat exchange source of a terminal user, and is tested in a circulating reciprocating mode.

8. The water channeling judgment and alarm device for the ground source heat pump air conditioner working condition conversion valve bank as claimed in claim 2, characterized in that: the sensor (18) is a pressure gauge, or a flow meter, or a water flow indicator.

9. A method for judging water channeling of a ground source heat pump air conditioner working condition conversion valve set comprises a ground source heat pump unit (9), a ground source water pump (10), a ground source water collector (11), a ground source water separator (12), a cold and hot water pump (13), an air conditioner cold and hot water collector (14), an air conditioner cold and hot water separator (15) and 8 on-off devices;

the 8 on-off devices are respectively the 1 st to 8 th on-off devices;

the ground source water collector (11) is divided into two pipelines after passing through a ground source water pump (10) through a pipeline, and one pipeline is connected to a water inlet of a condenser of the ground source heat pump unit (9) after passing through a first on-off device (1); the other pipeline is connected to the water inlet of the evaporator of the ground source heat pump unit (9) through a3 rd on-off device; a water outlet of a condenser of the ground source heat pump unit (9) is respectively connected into a ground source water separator (12) and an air conditioner cold and hot water separator (15) through a2 nd on-off device and a 6 th on-off device by pipelines;

the on-off device is a valve group, the valve group comprises a valve (16), a valve (17), a drain pipe (19) and a drain valve (20), the valve (16) and the valve (17) are connected in series, one end of the drain pipe (19) is connected with the drain valve (20), and the other end of the drain pipe is connected to a pipeline between the valve (16) and the valve (17);

the valve banks have the same structure, and the 8 on-off devices are respectively a valve bank (1), a valve bank (2), a valve bank (3), a valve bank (4), a valve bank (5), a valve bank (6), a valve bank (7) and a valve bank (8);

the method is characterized by comprising the following steps:

s1, when a local source heat pump system is in a working condition in winter; the valve group (1), the valve group (2), the valve group (7) and the valve group (8) are closed, the valve group (1), the valve group (2), the valve group (7), a valve (16) and a valve (17) of the valve group (8) are closed, and the drain valve (20) is opened;

the low-temperature medium takes a ground source water pump (10) as a power source, flows through a ground source water collector (11), the ground source water pump (10), an evaporator of a ground source heat pump unit (9), a ground source water separator (12) and a shallow ground surface heat exchange source, and is measured in a circulating reciprocating manner; the high-temperature medium takes a cold and hot water pump (13) as a power source, flows through an air conditioner cold and hot water collector (14), the cold and hot water pump (13), a condenser of a ground source heat pump unit (9), an air conditioner cold and hot water separator (15) and a heat exchange source measurement of a terminal user, and circularly reciprocates;

if water flows out of the opened drain valve (20), judging that the valve bank corresponding to the drain valve (20) has water channeling;

if water flows out of the closed drain valve (20), judging that the drain valve (20) is damaged;

s2, when the ground source heat pump system is in a summer working condition, opening the valve group (1), the valve group (2), the valve group (7) and the valve group (8), opening valves (16) and (17) of the valve group (1), the valve group (2), the valve group (7) and the valve group (8), and closing a drain valve (20);

the high-temperature medium takes a ground source water pump (10) as a power source, flows through a ground source water collector (11), the ground source water pump (10), a condenser of a ground source heat pump unit (9), a ground source water separator (12) and a shallow ground surface heat exchange source for heat exchange, and is circularly reciprocated; the low-temperature medium takes a cold and hot water pump (13) as a power source, flows through an air-conditioning cold and hot water collector (14), the cold and hot water pump (13), an evaporator of a ground source heat pump unit (9), an air-conditioning cold and hot water separator (15) and a heat exchange source measurement of a terminal user, and circularly reciprocates;

if water flows out of the closed drain valve (20), the drain valve (20) is judged to be damaged.

10. The method for judging the water channeling of the ground source heat pump air conditioner working condition switching valve bank as claimed in claim 9, wherein:

the automatic control system also comprises a sensor (18), an automatic control line and a controller, wherein the sensor (18) is arranged in the drainage pipe (19); the sensor (18) is in electric signal connection with the controller through an automatic control line; the sensor (18) is a pressure sensor and is used for detecting whether water flow pressure exists in a pipeline of the drain pipe (19); when the sensor (18) detects that the water flow pressure exists in the pipeline of the drain pipe (19), the signal of the sensor (18) is fed back to the controller through the automatic control line, and the controller reminds of water channeling;