TWI429866B - Heat exchange drinking water supply - Google Patents

Description

Heat exchange water dispenser

The invention relates to a heat exchange water dispenser, which provides a heat energy which can be used for preheating raw water by using hot water and a condenser, wherein the refrigerant in the condenser is stored in the preheating bladder, and The heat dissipation group dissipates heat to prevent the compressor from tripping due to high pressure, and reduces the energy consumption of the heater.

Referring to FIG. 1 , the existing hot and cold water dispenser has a cooling module 1, a hot water tank 20, an electric heater 21, a warm water bladder 22, an ice water bladder 23 and a selectively arranged heat recovery heat. Switch 24.

The electric heater 21 is disposed in the hot water tank 20 to heat the water entering the hot water tank 20, and the hot water tank 20 is connected to the heat recovery heat exchanger 24 by a pipeline, but in a realistic state; the heat recovery heat exchanger 24 is The pipeline is connected to the warm water bladder 22 and the ice water bladder 23 in sequence, and the water supply system 25 connects the heat recovery heat exchanger 24 and the hot water bladder 20 in sequence. However, some of the commercially available models do not have a warm water bladder. After the hot water passes through the heat recovery heat exchanger, it is warm water for drinking.

The cooling module 1 has an evaporator 10, a compressor 11, a condenser 12 and an expansion device 13. The evaporator 10 is disposed at the ice water tank 23, and the evaporator 10 is connected to the compressor 11 by a pipeline. The condenser 12 is connected by a line, and the condenser 12 is connected to the expansion valve 13 by a line, and the expansion valve 13 is connected to the evaporator 10 by a line.

The raw water from the water supply system 25 is sequentially introduced into the hot water tank 20 via the line and heat recovery heat exchanger 24, so that the raw water can be boiled by the electric heater 21, so that the hot water tank 20 can supply hot water.

The hot water is partially introduced into the warm water bladder 22 and the ice water bladder 23 via the heat recovery heat exchanger 24, and when the hot water passes through the heat recovery heat exchanger 24, the hot water is mixed with the raw water described above. The heat exchange, in addition to raising the temperature of the raw water, reduces the electric energy consumed by the electric heater 21, and cools the hot water into warm water during the heat exchange process.

If the hot and cold water dispenser does not have the heat recovery heat exchanger 24, the above heat exchange will not proceed, so the electric energy consumption of the electric heater 21 is bound to increase, and the heat energy generated by the hot water in the cooling is a waste.

When the warm water flows into the warm water bladder 22, the warm water bladder 22 can provide warm water, and the warm water flowing into the ice water bladder 23 exchanges heat with the refrigerant of the evaporator 1 to cool the warm water into ice water, and The ice water bladder 23 is allowed to provide ice water.

The heat exchanged refrigerant described above is pressurized by the compressor 11 and sent to the condenser 12 to be cooled and condensed, and then sent to the expansion valve 13 to depressurize the refrigerant and then sent to the evaporator 10. , heat exchange again.

However, the heat energy released by the refrigerant in the condenser 12 is directly escaping in the air, and the heat energy has no practical benefit for preheating the raw water.

In summary, the existing hot and cold water dispenser has the following disadvantages to be improved: the thermal energy released by the condenser 12 is not properly utilized, resulting in an invisible waste.

In view of the above disadvantages, the object of the present invention is to provide a heat exchange water dispenser for maintaining the temperature of the refrigerant and effectively utilizing the heat energy released by the heat pump module to achieve heat exchange of the preheated raw water. The effect is, and the compressor is prevented from jumping due to the high pressure of the refrigerant, which causes the water dispenser to be unstable.

In order to achieve the above object, the technical means of the present invention is to provide a heat exchange water dispenser having a preheating bladder, a hot water bladder, a heat recovery heat exchange group, an ice water bladder and a heat pump module; The bile is connected to the hot water bile by a first pre-hot water outlet pipe, and a heater is arranged in the hot water bile; the heat recovery heat exchange group is connected with a second hot water outlet pipe and a second preheated water outlet pipe respectively. The water bladder, the heat recovery heat exchange group is connected with a first warm water pipe; the ice water bladder is connected to the heat recovery exchange group by a pipeline; the heat pump module is disposed at the preheating bladder and the ice water bladder.

The first embodiment of the heat pump module as described above has a condenser, a heat dissipation group, an expansion device, an evaporator, a compressor, an auxiliary expansion device and an auxiliary heat dissipation device, and the compressor has an outlet. The end is connected to the inlet end, and the outlet end is connected to the condenser by a pipeline. The condenser is disposed in the preheating bladder, and the condenser is further connected with a first control valve and a second control valve by a pipeline, and the pipeline is passed through the heat dissipation. The first control valve is connected to the expansion device by a pipeline, the expansion device is connected to the evaporator by a pipeline, the evaporator is arranged at the ice water bladder, the evaporator is connected by a pipeline to the inlet end, and the second control valve is connected by a pipeline connection. The expansion device, the auxiliary expansion device, is further connected by a pipeline to the inlet end, and the pipeline passes through the auxiliary heat dissipation group.

The second embodiment of the heat pump module as described above has a condenser, a heat dissipation group, an evaporator, an expansion device, a compressor and an auxiliary expansion device, the compressor having an outlet end and an inlet end The outlet end is connected to the condenser by a pipeline, and the condenser is disposed in the preheating bladder. The condenser is further connected with a first control valve and a second control valve by a pipeline, and the pipeline passes through the heat dissipation group, first The control valve is connected to the expansion device by a pipeline, and the expansion device is connected to the evaporator by a pipeline. The evaporator is disposed at the ice water bladder, and the evaporator is further connected to the inlet end by a pipeline, and the second control valve is connected by a pipeline connection to assist the expansion. The device, the auxiliary expansion device is further connected to the inlet end by a pipeline, and the pipeline passes through the heat dissipation group.

A third embodiment of the heat pump module as described above, comprising a condenser, a heat dissipation group, an evaporator, an expansion device, an auxiliary expansion device and a compressor, the compressor having an outlet end and an inlet end The outlet end is connected to the condenser by a pipeline, the condenser is arranged in the preheating biliary, and the condenser is connected to a three-way valve by a pipeline, the pipeline is passed through the heat dissipation group, and the three-way valve is connected with the expansion device by a pipeline. The expansion device is connected to the evaporator by a pipeline, the evaporator is disposed at the ice water bladder, the evaporator is connected to the inlet end by a pipeline, and the three-way valve is connected with the auxiliary expansion device by a pipeline, and the auxiliary expansion device is connected with the pipeline. Connected to the inlet end, the line passes through the heat sink.

The invention may further selectively have a warm water bladder, the warm water bladder is connected to the heat recovery heat exchange group by the first warm water outlet pipe, and the warm water bladder system is connected to the ice water bladder by a second warm water outlet pipe.

According to the structure as described above, the raw water from the raw water supply source can be preheated by the preheating biliary and the heat recovery heat exchange group, respectively, to reduce the electric energy required for the heater to boil the raw water.

In addition, the preheating bladder can preheat the raw water by the heat released by the condenser so that the heat can be properly utilized.

Moreover, when the water dispenser is in the standby state, in order to maintain the ice water bile temperature, the preheating bile has the storage energy, and the heat dissipation group has the heat dissipation function, so that the high pressure refrigerant discharged from the compressor in the heat pump module can precede the preheating. The hot biliary stores energy, and then the heat is taken away in the heat-dissipating group, and the high-pressure refrigerant can be similarly depressurized and cooled, thereby avoiding the situation that the compressor is tripped due to high pressure.

Furthermore, the hot water is cooled by the heat recovery heat exchange group, and then flows to the warm water bladder and the ice water bladder, so that the compressor can output less, and the water temperature in the ice water bladder can be lowered, so the water temperature can be lowered. The burden of the compressor.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily understand other advantages and functions of the present invention from the disclosure of the present disclosure.

Referring to FIG. 2, a first embodiment of the heat exchange water dispenser of the present invention has a preheating bladder 30, a hot water tank 31, a heat recovery heat exchange group 32, and a selective warm water bladder 33. An ice water bladder 34 and a heat pump module.

The preheating bladder 30 is connected to the raw water supply source 35, and is connected to the hot water tank 31 by a first preheated water outlet pipe 300; the hot water tank 31 is provided with a heater 310, and the hot water tank 31 is connected with a second hot water. Out of the tube 311.

The heat recovery heat exchange group 32 has a liner 320 and an outer tank 321 . The inner tank 320 is disposed in the outer bladder 321 . The inner tank 320 is connected to the warm water bladder 33 by a first warm water outlet pipe 322 , and the inner tank 320 . Further, the hot water tank 31 is connected to the first hot water outlet pipe 323, and the raw water supply source 35 is connected to the outer tank 321 and the hot water bladder 31 is connected to the outer preheating water outlet pipe 324.

The warm water bladder 33 is connected to the ice water bladder 34 by a second warm water outlet pipe 330, and the ice water bladder 34 is connected with an ice water outlet pipe 340. However, because the warm water bladder 33 series is an option device, the hot water is cooled by the heat recovery heat exchange group 32, which is the warm water that can be drunk, and the warm water bladder 33 is not necessary to store the warm water. The advantage of 33 is that warm water can be cooled by natural cooling, so that the temperature of the water entering the ice water bladder 34 is not too high. If the warm water bladder 33 is not provided in the water dispenser, the ice water bladder 34 is connected to the heat recovery heat exchange group 32 by a line.

The heat pump module has a condenser 40, a heat dissipation group 41, an expansion device 42, an evaporator 43, a compressor 44, an auxiliary expansion device 45, and an auxiliary heat dissipation group 46.

The compressor 44 has an outlet end 440 and an inlet end 441. The outlet end 440 is connected to the condenser 40 by a pipeline. The condenser 40 is disposed in the preheating bladder 30, and is connected to a first control valve 420 and a pipeline by a pipeline. The second control valve 450, the pipeline passes through the heat dissipation group 41, and the heat dissipation group 41 is composed of a plurality of heat dissipation fins 41. The heat dissipation group 41 further has a heat dissipation fan 410, and the first control valve 420 is connected to the expansion device 42 by a pipeline. The expansion device 42 is connected to the evaporator 43 by a line, the evaporator 43 is disposed at the ice water tank 43, and the evaporator 43 is further connected to the inlet end 441 by a pipeline.

The second control valve 450 is connected to the auxiliary expansion device 45 by a pipeline. The auxiliary expansion device 45 is further connected to the inlet end 441 by a pipeline. The pipeline passes through the auxiliary group heat dissipation group 46. The auxiliary heat dissipation group 46 is composed of a plurality of heat dissipation fins. The heat dissipation group 46 further has a heat dissipation fan 460. The expansion device 42 and the auxiliary expansion device 45 can be capillary tubes.

As described above, the first embodiment of the present invention may have the following several heat exchange modes or a heat exchange mode combined with each other: the first type: water is supplied to the hot water tank 31 only by the heat recovery heat exchange group 32, When the warm water or the ice water is added at the same time, the hot water of the hot water tank 31 flows into the inner tank 320 from the first hot water outlet pipe 323, and the raw water from the raw water supply source 35 flows into the outer tank 321 to make the hot water The raw water is heat-exchanged in the heat recovery exchange group 32, and the hot water is cooled to warm water, and the raw water is heated to warm water.

The warm water described above is then passed from the inner tank 320 to the warm water bladder 33 via the first warm water outlet pipe 322, and can be used or flowed into the ice water bladder 34 by the second warm water outlet pipe 322. If the warm water bladder 33 is not provided in the water dispenser, the warm water may be consumed after flowing out of the first warm water pipe 322, and the warm water in the heat recovery exchange group 32 directly flows into the ice water bladder 34. .

The above-mentioned warm water is passed from the outer preheating pipe 324 to the hot water bladder 31 so that the warm water can be heated to be boiled by the heater 310 to become hot water. It can be used by the first hot water outlet pipe 311. The flow direction of the refrigerant in the heat pump module is as follows.

Second: when the water in the ice water bladder 34 needs to be cooled and there is no need to replenish water, the refrigerant in the evaporator 43 exchanges heat with the water in the ice water bladder 34 to lower the temperature of the water to Set value.

The heat exchanged refrigerant is sent to the condenser 40 by the compressor 44. Referring to Figure 3, the high pressure and high temperature refrigerant discharged from the compressor exchanges heat with the water in the preheating bladder 30. The supply source 35 does not provide raw water to the preheating bladder 30, so the water in the preheating bladder 30 is at a standstill, so the high pressure refrigerant discharged from the compressor in the heat pump module can store energy before the preheating bladder 30, and then In the heat dissipation group 41, the heat is sufficiently taken away, and the heat dissipation fan 410 enhances the heat dissipation effect of the heat dissipation group, so that the heat pump module does not reduce the heat exchange function of the preheating bladder 30, causing the high pressure to be too high and causing the compressor to trip. .

At this time, the first control valve 420 causes the expansion device 42 and the heat dissipation group 41 to be in an on state, and the second control valve 450 causes the auxiliary expansion device 45 and the heat dissipation group 41 to be in a non-conduction state.

The refrigerant flows into the expansion device 42 and then flows into the evaporator 43 to lower the temperature of the water in the ice water bladder 34, and repeats the above-described flow process until the water in the ice water bladder 34 falls to the set temperature. Ice water can be used by the ice water outlet pipe 340.

The third type: when the hot water needs a large amount of replenishment, and the warm water bladder 33 and the ice water bladder 34 do not need to be replenished with water or only need to add a small amount of water, and the ice water bladder 34 does not need to lower the temperature again, the first control valve 420 The heat dissipation group 41 and the expansion device 42 are in a non-conducting state, and the second control valve 450 is in a state in which the auxiliary expansion device 45 and the heat dissipation group 41 are in an on state.

Referring to FIG. 4, the high-temperature refrigerant flows into the preheating bladder 30 to preheat the raw water flowing from the raw water supply source 35 to the preheating bladder 30, thereby making it into warm water. A pre-hot water outlet pipe 300 flows into the hot water tank 31, so that the warm water can be heated to be boiled by the heater 310 to become hot water.

The refrigerant passing through the condenser 40 sequentially flows through the heat dissipation group 41, the auxiliary expansion device 45 and the auxiliary heat dissipation group 46, and achieves the effect of preheating the raw water during the flow, and the cooling fans 410 and 460 can respectively blow the cold air. The heat dissipation of the refrigerant is enhanced to the heat dissipation group 41, and the auxiliary heat dissipation group 46 enhances the heat absorption of the refrigerant, and the refrigerant that is discharged from the compressor 44 to the high temperature and high pressure is sent to the condenser 40, and when the amount of water in the hot water bladder has reached the set amount, The refrigerant stops flowing.

The fourth type: the flow mode and heat exchange mode of the refrigerant, the warm water, the hot water and the warm water when the hot water, the warm water and the ice water are to be simultaneously added, and the combination of the first type and the third type as described above, Therefore, this statement will not be repeated.

However, if the temperature of the water in the ice water bladder 34 has dropped to the set temperature, the refrigerant sequentially follows the auxiliary expansion device 45, the auxiliary heat dissipation group 46, the compressor 44, the condenser 40, the heat dissipation group 41, and the auxiliary expansion device 45. The order flows.

If the temperature of the water in the ice water bladder 34 is still to be lowered, the refrigerant flows in the order of the expansion device 42, the evaporator 43, the compressor 44, the condenser 40, the heat dissipation group 41, and the expansion device 42.

Referring to FIG. 5, in the second embodiment of the heat exchange water dispenser of the present invention, only the auxiliary heat dissipation group in the first embodiment is removed in the embodiment, and part of the pipeline connection mode is changed, and most of the components are The connection mode still uses the first embodiment, so the component symbol is extended to the first embodiment, and the same pipeline configuration as the first embodiment in this embodiment is not described again. Here, only the pipeline change portion and the flow direction of the refrigerant are stated. Special first Chen Ming.

As shown, the auxiliary expansion device 45 is connected to the inlet end 441 by a line that passes through the heat dissipation set 41.

In the present embodiment, the warm water, the hot water, the ice water and the warm water flow in the preheating bladder 30, the hot water bladder 31, the heat recovery heat exchange group 32, the warm water bladder 33 and the ice water bladder 34 are both An embodiment is the same.

In this embodiment, the flow direction of the refrigerant can have two modes:

First, when the first control valve 420 makes the heat dissipation group 41 and the expansion device 42 in a non-communication state, and the second control valve 450 is in the state that the heat dissipation group 41 is in communication with the auxiliary expansion device 45, the refrigerant is followed by the condenser 40. The heat dissipation group 41, the auxiliary expansion device 45, the heat dissipation group 41, the compressor 44 and the condenser 40 are sequentially flowed, and the desired effect is to change the raw water in the preheating bladder 30 into warm water to It is supplied to the hot water tank 31.

The second type: when the first control valve 420 is in a state in which the heat dissipation group 41 is in communication with the expansion device 42 and the second control valve 450 is in a state in which the heat dissipation group 41 and the auxiliary expansion device 45 are in a non-communication state, the refrigerant follows the expansion device 42 The evaporator 43, the compressor 44, the condenser 40, the heat dissipation group 41, and the expansion device 42 are sequentially flowed, and the main effect thereof is to lower the temperature of the water in the ice water bladder 34.

Referring to FIG. 6 , in the third embodiment of the heat exchange water dispenser of the present invention, in the embodiment, the auxiliary heat dissipation group, the first control valve and the second control valve are removed, and part of the pipeline connection manner is changed. While most of the components and the connection manners still use the first embodiment, the component symbols are extended to the first embodiment, and the same pipeline configuration as the first embodiment in this embodiment is not described again. And the flow of refrigerant, special first Chen Ming.

As shown, the condenser 40 is connected to a three-way valve 47 by a line which is closed to the heat dissipation group 41. The three-way valve 47 is connected to the expansion device 42 by a line, and the expansion device 42 is connected to the evaporator 43 by a pipeline. The three-way valve 47 is further connected to the auxiliary expansion device 45 by a line, and the auxiliary expansion device 45 is connected to the inlet end 441 by a line which passes through the heat dissipation group 42.

In the present embodiment, the flow direction of the refrigerant is controlled by the three-way valve 47. If the refrigerant follows the order of the expansion device 42, the evaporator 43, the compressor 44, the condenser 40, the heat dissipation group 41, and the expansion device 42, the system uses The temperature of the water in the ice water bladder 34 is lowered.

If the refrigerant flows in the order of the auxiliary expansion device 45, the heat dissipation group 41, the compressor 44, the condenser 40, the heat dissipation group 41, and the auxiliary expansion device 45, it changes the raw water in the preheating bladder 30 into warm water. So that it can be supplied to the hot water tank 31.

However, the specific embodiments described above are merely used to exemplify the features and functions of the present invention, and are not intended to limit the scope of the present invention, and may be applied without departing from the spirit and scope of the present invention. Equivalent changes and modifications made to the disclosure of the present invention are still covered by the scope of the following claims.

1. . . Cooling module

10. . . Evaporator

11. . . compressor

12. . . Condenser

13. . . Expansion valve

20. . . Hot water gall

twenty one. . . Heater

twenty two. . . Warm water

twenty three. . . Ice water gall

twenty four. . . Heat recovery heat exchanger

25. . . water supply system

30. . . Preheating

300. . . First pre-hot water outlet pipe

31. . . Hot water gall

310. . . Heater

311. . . Second hot water outlet

32. . . Heat recovery heat exchange group

320. . . Liner

321. . . Outside

322. . . First warm water outlet

323. . . First hot water outlet

324. . . Second preheating water outlet pipe

33. . . Warm water

330. . . Second warm water outlet

34. . . Ice water gall

340. . . Ice water pipe

35. . . Raw water supply source

40. . . Condenser

41. . . Heat dissipation group

410. . . Cooling fan

42. . . Expansion device

420. . . First control valve

43. . . Evaporator

44. . . compressor

440. . . Exit end

441. . . Entrance end

45. . . Auxiliary expansion device

450. . . Second control valve

46. . . Auxiliary cooling group

460. . . Cooling fan

47. . . Three-way valve

Figure 1 is a schematic diagram of an existing hot and cold water dispenser.

Figure 2 is a schematic view of a first embodiment of the heat exchange water dispenser of the present invention.

Figure 3 is a schematic diagram of heat exchange between the raw water of the preheating bladder and the refrigerant of the evaporator.

Figure 4 is a schematic diagram of heat exchange between the refrigerant and the heat sink.

Figure 5 is a schematic view of a second embodiment of the heat exchange water dispenser of the present invention.

Figure 6 is a schematic view of a third embodiment of the heat exchange water dispenser of the present invention.

30. . . Preheating

300. . . First pre-hot water outlet pipe

31. . . Hot water gall

310. . . Heater

311. . . Second hot water outlet

32. . . Heat recovery heat exchange group

320. . . Liner

321. . . Outside

322. . . First warm water outlet

323. . . First hot water outlet

324. . . Second preheating water outlet pipe

33. . . Warm water

330. . . Second warm water outlet

34. . . Ice water gall

340. . . Ice water pipe

35. . . Raw water supply source

40. . . Condenser

41. . . Heat dissipation group

410. . . Cooling fan

42. . . Expansion device

420. . . First control valve

43. . . Evaporator

44. . . compressor

440. . . Exit end

441. . . Entrance end

45. . . Auxiliary expansion device

450. . . Second control valve

46. . . Auxiliary cooling group

460. . . Cooling fan

Claims (21)

A heat exchange water dispenser comprising: a preheating bladder; a hot water bladder connected to the preheating bladder by a first preheating hot water outlet, the heater having a heater; a heat recovery a heat exchange group, wherein the first hot water outlet pipe and a second preheated water outlet pipe are respectively connected to the hot water bladder, and the heat recovery heat exchange group is further connected with a first warm water outlet pipe; Connected to the heat recovery heat exchange group by a pipeline; and a heat pump module disposed at the preheating bladder and the ice water bladder, the heat pump module having a condenser, a heat dissipation group, and an expansion device An evaporator, a compressor, an auxiliary expansion device and an auxiliary heat dissipation device, the compressor having an outlet end and an inlet end, the outlet end being connected to the condenser by a pipeline, the condenser being disposed in the preheating In the hot biliary, the condenser is further connected to a first control valve and a second control valve by a pipeline, the pipeline is passed through the heat dissipation group, and the first control valve is connected to the expansion device by a pipeline, the expansion device The evaporator is connected by a pipeline, and the evaporator is disposed at the ice water bladder. Another line connecting the evaporator to the inlet end of the second control valve system is connected to a line of the auxiliary expansion device, the auxiliary expansion device is connected to the inlet line to the other end of the line through the auxiliary heat set. The heat exchange water dispenser of claim 1, wherein the heat dissipation group is composed of a plurality of heat dissipation fins, the heat dissipation group further has a heat dissipation fan; and the auxiliary heat dissipation group is composed of a plurality of heat dissipation fins. The auxiliary heat dissipation group further has a heat dissipation fan. The heat exchange water dispenser of claim 1, wherein the expansion device and the auxiliary expansion device are capillary tubes. The heat exchange water dispenser of claim 1, further comprising a warm water bladder connected to the heat recovery heat exchange group by the first warm water outlet pipe, the warm water bladder further The second warm water outlet pipe connects the ice water bladder. The heat exchange water dispenser of claim 4, wherein the hot water bladder is further connected to a second hot water outlet pipe, and the ice water bladder is further connected with an ice water outlet pipe. The heat exchange water dispenser of claim 4, wherein the heat recovery heat exchange unit has a liner and an outer bladder, the liner is disposed in the outer bladder, and the inner liner is the first The hot water outlet pipe is connected to the hot water bladder, and the inner tank connects the warm water bladder with the first warm water outlet pipe, and the outer bile connects the hot water bladder with the second preheated water outlet pipe. The heat exchange water dispenser of claim 6, wherein the preheating bladder is connected to a raw water supply source, and the outer bladder is connected to the raw water supply source. A heat exchange water dispenser comprising: a preheating bladder; a hot water bladder connected to the preheating bladder by a first preheating hot water outlet, the heater having a heater; a heat recovery a heat exchange group, wherein the first hot water outlet pipe and a second preheated water outlet pipe are respectively connected to the hot water bladder, and the heat recovery heat exchange group is further connected with a first warm water outlet pipe; , which is connected to the heat recovery heat exchange group by a pipeline; a heat pump module disposed at the preheating bladder and the ice water bladder, the heat pump module having a condenser, a heat dissipation group, an evaporator, an expansion device, a compressor and an auxiliary expansion device, The compressor has an outlet end and an inlet end. The outlet end is connected to the condenser by a pipeline. The condenser is disposed in the preheating bladder, and the condenser is further connected to a first control valve and a pipeline by a pipeline. a second control valve, the pipeline is passed through the heat dissipation group, the first control valve is connected to the expansion device by a pipeline, and the expansion device is connected to the evaporator by a pipeline, and the evaporator is disposed at the ice water bladder The evaporator is further connected to the inlet end by a line. The second control valve is connected to the auxiliary expansion device by a pipeline. The auxiliary expansion device is further connected to the inlet end by a pipeline, and the pipeline passes through the heat dissipation group. The heat exchange water dispenser of claim 8, wherein the heat dissipation group is composed of a plurality of heat dissipation fins, and the heat dissipation group further has a heat dissipation fan. The heat exchange water dispenser of claim 8, wherein the expansion device and the auxiliary expansion device are capillary tubes. The heat exchange water dispenser of claim 8, further comprising a warm water bladder connected to the heat recovery heat exchange group by the first warm water outlet pipe, the warm water bladder further The second warm water outlet pipe connects the ice water bladder. The heat exchange water dispenser of claim 11, wherein the hot water bladder is further connected to a second hot water outlet pipe, and the ice water bladder is further connected with an ice water outlet pipe. The heat exchange water dispenser of claim 11, wherein the heat recovery heat exchange unit has a liner and an outer casing, and the liner is disposed outside In the bladder, the inner tank is connected to the hot water bladder by the first hot water outlet pipe, and the inner bladder is connected to the warm water bladder by the first warm water outlet pipe, and the outer bile is the second preheated water The outlet pipe connects the hot water bladder. The heat exchange water dispenser of claim 13, wherein the preheating bladder is connected to a raw water supply source, and the outer bladder is connected to the raw water supply source. A heat exchange water dispenser comprising: a preheating bladder; a hot water bladder connected to the preheating bladder by a first preheating hot water outlet, the heater having a heater; a heat recovery a heat exchange group, wherein the first hot water outlet pipe and a second preheated water outlet pipe are respectively connected to the hot water bladder, and the heat recovery heat exchange group is further connected with a first warm water outlet pipe; Connected to the heat recovery heat exchange group by a pipeline; and a heat pump module disposed at the preheating bladder and the ice water bladder, the heat pump module having a condenser, a heat dissipation group, and an expansion device An evaporator, an auxiliary expansion device and a compressor, the compressor having an outlet end and an inlet end, the outlet end being connected to the condenser by a pipeline, the condenser being disposed in the preheating bladder The condenser is further connected to a three-way valve by a pipeline, the pipeline is passed through the heat dissipation group, and the three-way valve is further connected to the expansion device by a pipeline, and the expansion device is connected to the evaporator by a pipeline, and the evaporator system is connected to the evaporator. Provided at the ice water bladder, the evaporator is connected to the inlet end by a pipeline, the tee In a further line connected to the auxiliary expansion device, the expansion means of the auxiliary line to a line connecting the inlet end of the pipeline system passes through the heat set. The heat exchange water dispenser of claim 15, wherein the The heat dissipation group is composed of a plurality of heat dissipation fins, and the heat dissipation group further has a heat dissipation fan. The heat exchange water dispenser of claim 15, wherein the expansion device is a capillary tube. The heat exchange water dispenser of claim 15, further comprising a warm water bladder connected to the heat recovery heat exchange group by the first warm water outlet pipe, the warm water bladder further The second warm water outlet pipe connects the ice water bladder. The heat exchange water dispenser of claim 18, wherein the hot water bladder is further connected to a second hot water outlet pipe, and the ice water bladder is further connected with an ice water outlet pipe. The heat exchange water dispenser of claim 18, wherein the heat recovery heat exchange group has a liner and an outer bladder, the liner is disposed in the outer bladder, and the inner liner is the first The hot water outlet pipe is connected to the hot water bladder, and the inner tank connects the warm water bladder with the first warm water outlet pipe, and the outer bile connects the hot water bladder with the second preheated water outlet pipe. The heat exchange water dispenser according to claim 20, wherein the preheating bladder is connected to a raw water supply source, and the outer bladder is connected to the raw water supply source.