Cold and hot dual-supply heat pump for central kitchen

Abstract

The invention relates to a cold and hot dual-supply heat pump for a central kitchen, which relates to the field of heat pumps, and comprises a shell, a compressor, a condenser, an evaporator and a fan, the compressor, the condenser, the evaporator and the fan are arranged in the shell, and the compressor, the condenser and the evaporator are communicated with one another; the compressor is used for compressing low-temperature and low-pressure gaseous refrigerants into high-temperature and high-pressure gaseous refrigerants, the condenser is used for enabling the high-temperature and high-pressure gaseous refrigerants to exchange heat with tap water, the evaporator is used for enabling liquid refrigerants to exchange heat with air and generate cold air, and a water inlet pipe and a water outlet pipe are arranged on the condenser. The water inlet pipe and the water outlet pipe penetrate through the shell and extend out of the shell, a cold air pipe is connected to the evaporator and used for discharging cold air, an air inlet and an air outlet are formed in the shell, the input end of the fan is located in the shell, and the output end of the fan is communicated with the air outlet. The waste heat recycling device has the effect of recycling waste heat.

Description

Technical Field

[0001] The present application relates to the field of heat pumps, and in particular to a dual-supply heat pump for use in central kitchens. Background Art

[0002] A heat pump is a device that transfers heat from a low-temperature object to a high-temperature object in a reverse cycle. While consuming a small amount of net reverse cycle work, the heat pump can produce a large amount of heat. By placing a heat pump in a central kitchen, it can be used to output cool air, thereby achieving the desired effect of regulating the kitchen temperature.

[0003] The existing heat pump includes a shell, a compressor, a condenser and an evaporator. The compressor, condenser and evaporator are installed in the shell. The compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is transported to the condenser and exchanges heat with the air. After the heat exchange, the refrigerant becomes liquid. The liquid refrigerant transfers heat with the air in the evaporator, cools the air and passes it into the kitchen.

[0004] The above-mentioned related technical solutions have the following defects: waste heat is generated during the operation of the heat pump, and the waste heat is dissipated into the air through the fan, resulting in waste of heat energy. Summary of the Invention

[0005] In order to recycle and utilize waste heat, the present application provides a dual-heat and cold heat pump for a central kitchen.

[0006] The present application provides a dual-supply heat pump for a central kitchen that adopts the following technical solution: A hot and cold dual heat supply pump for a central kitchen includes a shell, a compressor, a condenser, an evaporator and a fan. The compressor, condenser, evaporator and fan are arranged in the shell, and the compressor, condenser and evaporator are connected to each other. The compressor is used to compress low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant. The condenser is used to exchange heat between the high-temperature and high-pressure gaseous refrigerant and tap water. The evaporator is used to exchange heat between the liquid refrigerant and the air and generate cold air. The condenser is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe pass through the shell and extend out of the shell. The evaporator is connected to a cold air pipe, the cold air pipe is used to discharge cold air. The shell is provided with an air inlet and an air outlet. The input end of the fan is located in the shell, and the output end of the fan is connected to the air outlet.

[0007] By adopting the above technical solution, a compressor, a condenser, an evaporator and a fan are arranged in the outer shell, so that the compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant is input into the condenser through the four-way valve, and tap water is injected into the condenser. The tap water is discharged after heat exchange with the refrigerant, so that the high-temperature and high-pressure gaseous refrigerant can be quickly converted into liquid refrigerant and enter the evaporator through the four-way valve. The liquid refrigerant enters the evaporator and is converted into gaseous refrigerant. The liquid refrigerant absorbs heat during the evaporation process and exchanges heat with the air to cool the air. The low-temperature air is discharged through the fan. By allowing the tap water to exchange heat with the refrigerant in the condenser, the refrigerant circulation efficiency is improved. The heat energy carried by the refrigerant can be used to heat tap water and be used by the central kitchen, thereby achieving the effect of recovering waste heat.

[0008] Optionally, a water receiving pan is provided in the shell, the water receiving pan is fixed horizontally in the shell, the fan is arranged on the water receiving pan, the compressor, condenser and evaporator are arranged below the water receiving pan, the cold air pipe is arranged vertically, the lower end of the cold air pipe is connected to the evaporator, and the upper side of the cold air pipe passes through the water receiving pan and extends above the water receiving pan.

[0009] By adopting the above technical solution, a water receiving pan is set in the shell, and the fan is set above the water receiving pan. When the heat pump is working, the cold air in the evaporator is discharged to the space above the water receiving pan through the cold air pipe. The fan can discharge the cold air, and condensation water is easily generated in the space above the water receiving pan. By setting a drain pipe under the water receiving pan, the condensation water can accumulate on the water receiving pan and be discharged through the drain pipe.

[0010] Optionally, a filter mechanism is detachably connected to the outer shell, and the filter mechanism is inserted into the air inlet. The filter mechanism includes a box body, a movable plate and multiple fixing parts. The air inlet is opened on the top surface of the outer shell, and the box body opening is inserted upward into the air inlet. A groove is opened on the box body, and the movable plate cover is set on the groove of the box body. A plurality of filter holes are opened on the movable plate, and the fixing part is fixed in the box body, and the fixing part abuts against the surface of the movable plate.

[0011] By adopting the above technical solution, a filtering mechanism is provided on the outer shell, so that the filtering mechanism can be inserted into the air inlet and filter the air. The air enters the outer shell through the movable plate, which can reduce the chance of lint and other debris entering the outer shell and absorbing condensed water and adhering to the inner shell. By providing a fixing part in the box body, the movable plate can slide relative to the box body, and then the fixing part can scratch the surface of the movable plate, so that the filter holes on the movable plate can remain unobstructed, and impurities accumulated on the surface of the movable plate can fall into the box body, which is convenient for cleaning.

[0012] Optionally, a memory alloy wire is provided between the box body and the movable plate, one end of the memory alloy wire is fixed to the box body, and the other end is fixed to the movable plate. The memory alloy wire is deformed by temperature difference and drives the movable plate to move relative to the fixed part.

[0013] By adopting the above technical solution, a memory alloy wire is arranged between the box body and the movable plate, so that the memory alloy wire can maintain a high temperature phase and a low temperature phase at different temperatures. The memory alloy wire is made of nickel-titanium alloy. By presetting the austenite phase and martensite phase, the memory alloy wire is stretched at high temperature and contracted at low temperature. When the heat pump is stopped, the cold air pipe on the evaporator does not discharge cold air, and the ambient temperature of the memory alloy wire is relatively high. When the heat pump is working, the cold air is discharged from the cold air pipe, so that the temperature of the memory alloy wire is relatively low. There is a difference in length between the high temperature phase and the low temperature phase of the memory alloy wire, so that the movable plate can slide under the action of gravity. When the heat pump is stopped, the cold air pipe stops discharging cold air, and the temperature of the memory alloy wire is relatively high, so that the memory alloy wire can be deformed and drive the movable plate to move. When the movable plate slides relative to the fixed part, the fixed part can scrape off impurities on the surface of the movable plate, so that more filter holes on the movable plate remain unobstructed, and the filtering performance of the movable plate is better.

[0014] Optionally, the memory alloy wire is arranged outside the box body.

[0015] By adopting the above technical solution, by arranging the memory alloy wire on the outside of the box body, when the box body is vertically inserted into the air inlet, the memory alloy wire is close to the cold air pipe, so that the temperature difference of the memory alloy wire during the operation of the heat pump is large, the deformation rate of the memory alloy wire is large, and the movable plate has a larger range of movement on the box body.

[0016] Optionally, a connecting rod 1 is fixed outside the box body, a connecting rod 2 is provided on one side of the movable plate, one end of the memory alloy wire is fixed on the connecting rod 1, and the other end is fixed on the connecting rod 2, the memory alloy wire is arranged into multiple loops, and the looped memory alloy wire is sleeved on the connecting rod 1 and the connecting rod 2.

[0017] By adopting the above technical solution, by arranging connecting rod 1 outside the box body and connecting rod 2 on the movable plate, the memory metal wire can be wound around connecting rod 1 and connecting rod 2, so that the longer memory metal wire can be connected between the box body and the movable plate, further improving the range of motion of the movable plate.

[0018] Optionally, multiple sliding plates are rotatably connected to the connecting rod one and the connecting rod two, and the sliding plates are arranged in pairs. The sliding plates slide along the circumference of the connecting rod one or the connecting rod two, and the sliding direction of the sliding plates is around the circumference of the connecting rod. The memory alloy wire is hung on the sliding plates and abuts against the two sliding plates.

[0019] By adopting the above technical solution, sliding plates are arranged on connecting rod one and connecting rod two, so that the memory alloy wire is in contact with the two sliding plates and wrapped around the connecting rod. The two sliding plates can slide toward or away from each other along the circumference of the connecting rod. When the memory alloy wire is deformed, the memory alloy wire and the sliding plates are relatively fixed, thereby reducing the friction on the surface of the memory alloy wire when it is stretched and contracted, thereby improving the service life of the memory alloy wire.

[0020] Optionally, an arc-shaped groove is provided on the sliding piece, and the middle portion of the sliding piece is recessed.

[0021] By adopting the above technical solution, when the memory alloy wire is hung on the two sliding plates, the memory alloy is stuck in the arc groove, thereby reducing the probability of the memory alloy wire falling off from the surface of the sliding plate during the expansion and contraction process.

[0022] In summary, the beneficial technical effects of this application are: 1. By arranging a compressor, condenser, evaporator and fan in the shell, the compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and the high-temperature and high-pressure gaseous refrigerant is input into the condenser through the four-way valve. Tap water is injected into the condenser, and the tap water is discharged after heat exchange with the refrigerant, so that the high-temperature and high-pressure gaseous refrigerant can be quickly converted into liquid refrigerant and enter the evaporator through the four-way valve. The liquid refrigerant enters the evaporator and is converted into gaseous refrigerant. The liquid refrigerant absorbs heat during the evaporation process and exchanges heat with the air to cool the air. The low-temperature air is discharged through the fan. By exchanging heat between the tap water and the refrigerant in the condenser, the refrigerant circulation efficiency is improved. The heat energy carried by the refrigerant can be used to heat tap water and be used by the central kitchen, thereby achieving the effect of recycling waste heat. 2. By providing a filter mechanism on the housing, the filter mechanism can be inserted into the air inlet and filter the air. Air enters the housing through the movable plate, which can reduce the chance of debris such as lint entering the housing and absorbing condensed water and adhering to the housing. By providing a fixing piece inside the box body, the movable plate can slide relative to the box body, so that the fixing piece can rub the surface of the movable plate, so that the filter holes on the movable plate can remain unobstructed, and impurities accumulated on the surface of the movable plate can fall into the box body, making it easy to clean; 3. By arranging a memory alloy wire between the box body and the movable plate, the memory alloy wire can maintain a high temperature phase and a low temperature phase at different temperatures. When the heat pump is stopped, no cold air is discharged from the cold air pipe on the evaporator, and the ambient temperature of the memory alloy wire is relatively high. When the heat pump is working, cold air is discharged from the cold air pipe, which lowers the temperature of the memory alloy wire. There is a difference in the length of the memory alloy wire in the high temperature phase and the low temperature phase, so that the movable plate can slide under the action of gravity. When the movable plate slides relative to the fixed part, the fixed part can scrape off impurities on the surface of the movable plate, so that more filter holes on the movable plate remain unobstructed, and the filtering performance of the movable plate is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram of the water receiving tray of an embodiment of the present application.

[0026] Figure 4 It is a structural diagram of the filtering mechanism of an embodiment of the present application.

[0027] Figure 5 It is a structural schematic diagram of the box body of an embodiment of the present application.

[0028] Figure 6 This is a schematic diagram of the positions of connecting rod 1 and connecting rod 2 in an embodiment of the present application.

[0029] Figure 7 Schematic diagram of the connection relationship between the connecting rod 1 and the memory alloy wire in an embodiment of the present application.

[0030] Figure 8 It is a schematic diagram of the connection relationship between the connecting rod 2 and the memory alloy wire in an embodiment of the present application.

[0031] Figure 9 Schematic diagram of the connection relationship between the connecting rod 1 and the sliding plate in an embodiment of the present application.

[0032] Figure 10 It is a schematic diagram of the installation structure of the memory alloy wire in an embodiment of the present application.

[0033] Figure numerals: 1. outer shell; 11. air inlet; 12. air outlet; 13. water inlet pipe; 14. water outlet pipe; 15. water receiving tray; 16. drain pipe; 2. compressor; 3. condenser; 4. evaporator; 41. air conditioning pipe; 5. fan; 6. filtering mechanism; 61. box body; 611. triangle plate; 612. panel; 613. baffle; 614. handle; 615. connecting rod one; 62. movable plate; 621. filter hole; 622. connecting rod two; 63. fixing part; 64. memory alloy wire; 65. sliding plate. DETAILED DESCRIPTION

[0034] The present application is further described in detail below with reference to the accompanying drawings.

[0035] The present application discloses a dual-supply heat pump for a central kitchen. Figure 1 、 Figure 2 and Figure 3, including a housing 1, a compressor 2, a condenser 3, an evaporator 4, and a fan 5. A water tray 15 is provided in the housing 1 and fixed horizontally in the housing 1. The fan 5 is fixed above the water tray 15. The compressor 2, condenser 3, and evaporator 4 are installed in the housing 1 and located below the water tray 15. The condenser 3 is connected to a water inlet pipe 13 and a water outlet pipe 14. The water inlet pipe 13 and the water outlet pipe 14 both pass through the housing 1. The tap water pipe is connected to the water inlet pipe 13, allowing tap water to enter the condenser 3 through the water inlet pipe 13. The tap water exchanges heat with the refrigerant in the condenser 3 and is heated. The heated tap water is discharged through the water outlet pipe 14 for use in the central kitchen. The compressor 2 is connected to the condenser 3 and the evaporator 4. The compressor 2 works by electric energy and compresses the refrigerant. The compressor 2 compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is transported to the condenser 3 and exchanges heat with tap water. The high-temperature and high-pressure gaseous refrigerant is converted into liquid after heat exchange with water. The liquid refrigerant is transported to the evaporator 4 through a pipeline. The liquid refrigerant in the evaporator 4 absorbs heat from the air and evaporates into gas and flows back into the compressor 2. The temperature of the air that exchanges heat with the refrigerant is lower. A cold air pipe 41 is provided in the evaporator 4. The cold air pipe 41 is vertically arranged. A through hole is provided on the water receiving pan 15. The upper end of the cold air pipe 41 is inserted into the through hole. The cold air in the evaporator 4 is discharged to the space above the water receiving pan 15 through the cold air pipe 41. The fan 5 can discharge the cold air, thereby delivering cold air to the central kitchen.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The housing 1 is provided with an air inlet 11 and an air outlet 12. The air inlet 11 is provided at the top of the housing 1, and the air outlet 12 is provided on a side wall of the housing 1. The fan 5 is connected to the air outlet 12. When the fan 5 is working, the outside air enters the housing 1 through the air inlet 11 and is blown out from the air outlet 12 through the fan 5.

[0037] Reference Figure 3 A drain pipe 16 is provided below the water pan 15. One end of the drain pipe 16 passes through the water pan 15 and is in communication with the water pan 15, while the other end passes through the housing 1. When the heat pump is operating, cold air is continuously discharged from the cold air pipe 41, causing the temperature of the space above the water pan 15 in the housing 1 to be lowered, which easily generates condensed water. The condensed water can fall into the water pan 15 and be discharged outside the housing 1 through the drain pipe 16.

[0038] Reference Figure 4 、 Figure 5 and Figure 6A filter mechanism 6 is provided within the air inlet 11. The filter mechanism 6 is used to filter air and reduce the chance of fluff or solid impurities in the air entering the housing 1. The filter mechanism 6 includes a box body 61, a movable plate 62, a fixing member 63, and a memory alloy wire 64. The box body 61 is provided with ventilation holes. The movable plate 62 is provided within the box body 61 and covers the ventilation holes. The movable plate 62 is configured as a filter screen with a frame, and the filter screen is provided with filter holes 621 arranged therein. The fixing member 63 is fixed within the box body 61 and abuts against the surface of the movable plate 62. One end of the memory alloy wire 64 is fixed to the box body 61, and the other end is fixed to the movable plate 62. When the box body 61 is inserted into the air inlet 11, air enters the housing 1 through the movable plate 62, causing the movable plate 62 to perform a filtering function. The memory alloy wire 64 can be configured as a bidirectional memory alloy that expands at high temperatures and contracts at low temperatures. When the heat pump is operating, the cold air pipe 41 continuously discharges cold air, lowering the temperature of the space where the filter mechanism 6 is located. At this time, the length of the memory alloy wire 64 contracts, allowing the movable plate 62 to slide within the box body 61, thereby causing the movable plate 62 to slide relative to the fixed member 63. When the heat pump is shut down, the temperature of the memory alloy wire 64 is high, causing the memory alloy wire 64 to slide the movable plate 62. The position of the movable plate 62 can automatically change between the operation and shutdown of the heat pump. The fixed member 63 can scrape away lint or debris accumulated on the surface of the movable plate 62, keeping the filter holes 621 on the movable plate 62 unobstructed and maintaining the optimal filtering capacity of the movable plate 62.

[0039] Reference Figure 4 、 Figure 5 and Figure 6 The box body 61 includes two triangular plates 611, a panel 612 and a baffle 613. The two triangular plates 611 are arranged opposite to each other, and the panel 612 and the baffle 613 are arranged between the triangular plates 611. The triangular plates 611, the panel 612 and the baffle 613 are spliced ​​together to form a triangular box body. Ventilation holes are provided on the baffle 613, and the movable plate 62 is slidably connected to the baffle 613. The box body 61 is vertically inserted into the air inlet 11. When dust accumulates on the surface of the movable plate 62, the dust can accumulate in the box body 61, which is convenient for the user to pull out the box body 61 and clean the dust. A handle 614 is provided on the inner wall of the two triangular plates 611 to facilitate the user to move the box body 61.

[0040] Reference Figure 4 、 Figure 5 and Figure 6 A fixing member 63 is disposed within the housing 61. The fixing member 63 is a rod-like structure, positioned horizontally and connected at both ends to the two triangular plates 611. Multiple fixing members 63 are provided, spaced evenly apart along the tilting direction of the movable plate 62. When the memory alloy wire 64 expands and contracts in different temperature environments, the movable plate 62 can slide along the tilting direction of the baffle 613, causing the movable plate 62 to rub against the fixing members 63, effectively cleaning dust or debris from the surface of the movable plate 62.

[0041] The memory alloy wire 64 can be made of nickel-titanium alloy, which has a superelastic strain of 6%-8% at room temperature. The nickel-titanium alloy uses a bidirectional memory alloy. After cyclic thermomechanical treatment, the bidirectional memory alloy can stably maintain two crystal structures and can reversibly transform between a high-temperature phase and a low-temperature phase. When the memory alloy wire 64 is in a high-temperature environment and a low-temperature environment, the length of the memory alloy wire 64 is different. By using the memory alloy wire 64 to connect the box body 61 and the movable plate 62, when the length of the memory alloy wire 64 changes, the movable plate 62 can slip relative to the box body 61, thereby causing scratches between the movable plate 62 and the fixing part 63, so that the debris on the movable plate 62 is cleared and the filter hole 621 on the movable plate 62 remains unobstructed.

[0042] In nickel-titanium alloys, the nickel / titanium atomic ratio can directly change the phase transition temperature range. When the nickel content in nickel-titanium alloys is high, the phase transition temperature decreases, and when the titanium content in nickel-titanium alloys is high, the phase transition temperature increases. The processing methods of two-way memory alloys include constant deformation cycle training and pre-strain and die constraint. Constant deformation cycle training includes: 1. Fixed deformation in the high-temperature phase; 2. Cooling to below the martensite complete transformation temperature, maintaining deformation until the load stabilizes; 3. Heating to above the high-temperature phase, maintaining deformation until the load recovers. After 10-20 constant deformation cycle training, the low-temperature phase shape can be fixed. Pre-strain and die constraint are achieved by using a die to extrude and twist the alloy to the target shape at low temperature, repeating the cooling-deformation-heating cycle until a stable two-way memory is formed.

[0043] Reference Figure 4 、 Figure 5 and Figure 6 The box body 61 is provided with a first connecting rod 615, and the movable plate 62 is provided with a second connecting rod 622. Both connecting rods 615 and 622 are parallel to the movable plate 62. A memory alloy wire 64 is fixed at one end to the first connecting rod 615 and at the other end to the second connecting rod 622. The second connecting rod 622 and the first connecting rod 615 are located outside the box body 61. When the box body 61 is inserted into the housing 1, the memory alloy wire 64 is located on the side of the cooling air pipe 41. During the operation of the evaporator 4, the temperature and length of the memory alloy wire 64 fluctuate significantly.

[0044] When the movable plate 62 needs to have a large displacement amplitude in the box body 61 so that the fixing member 63 can scrape away the debris, a long memory alloy wire 64 must be provided between the movable plate 62 and the box body 61. Figure 10The memory alloy wire 64 can be wound into multiple circles, and each circle of memory alloy wire 64 is hung on the connecting rod 1 615 and the connecting rod 2 622 respectively. By making the ring structure formed by the memory alloy wire 64 be sleeved on the connecting rod 1 615 and the connecting rod 2 622, a longer memory alloy wire 64 can be set on the smaller box body 61. The length of the memory alloy wire 64 changes greatly when the temperature changes, so that the movable plate 62 moves with a larger amplitude.

[0045] Reference Figure 7 、 Figure 8 and Figure 9 , there are multiple sliding plates 65 rotatably connected to the connecting rod 1 615 and the connecting rod 2 622. The sliding plates 65 are slidably connected to the connecting rod 1 615 or the connecting rod 2 622, and the sliding plates 65 are slidably connected to the connecting rod through the sliding groove. The sliding plates 65 are arranged in pairs, and the sliding plates 65 of the same pair are rotatably connected to the connecting rod, and the sliding plates 65 of different pairs are arranged along the length direction of the connecting rod. The sliding plates 65 slide circumferentially along the axis of the connecting rod. When the memory alloy wire 64 is wound around the connecting rod, the memory alloy wire 64 abuts against the two sliding plates 65. When the memory alloy wire 64 is stretched, a uniform elongation deformation occurs on the memory alloy wire 65, and the part of the memory alloy wire 64 that is in contact with the two sliding plates 65 is stretched. At this time, the gap between the two sliding plates 65 becomes larger, and the sliding plates 65 move with the memory alloy wire 64, refer to Figure 10 When multiple turns of the memory alloy wire 64 are wound around the connecting rod 1 615 and the connecting rod 2 622, the two sliding plates 65 can slide in the same direction. During the sliding process, the sliding amplitudes of the two sliding plates 65 are different, so the two sliding plates 65 can move relative to each other. The two sliding plates 65 in the same pair can rotate toward or away from each other, thereby reducing the surface friction of the memory alloy wire 64 when it is deformed at different temperatures, thereby extending the service life of the memory alloy wire 64.

[0046] Reference Figure 9 An arc-shaped groove is provided in the middle of the sliding piece 65 , and the middle of the sliding piece 65 is recessed. When the memory alloy wire 64 is hung on the sliding piece 65 , the probability of the memory alloy wire 64 moving laterally and falling off the sliding piece 65 can be reduced.

[0047] The implementation principle of the embodiment of the present application is: by arranging a compressor 2, a condenser 3 and an evaporator 4 in the outer shell 1, the compressor 2 can generate heat energy during operation, and the high-temperature refrigerant exchanges heat with tap water in the condenser 3, so that the heat pump can heat the tap water and supply it to the kitchen. After absorbing heat, the liquid refrigerant is converted back into a gaseous refrigerant. The air temperature after absorbing heat is lower and is discharged through the cold air pipe 41. The fan 5 blows out the low-temperature air discharged from the cold air pipe 41, so that the heat pump can output hot water and cold air at the same time.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dual-supply heat pump for a central kitchen, characterized by: The invention comprises a housing (1), a compressor (2), a condenser (3), an evaporator (4) and a fan (5), wherein the compressor (2), the condenser (3), the evaporator (4) and the fan (5) are arranged in the housing (1), the compressor (2), the condenser (3) and the evaporator (4) are interconnected, the compressor (2) is used to compress a low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, the condenser (3) is used to make the high-temperature and high-pressure gaseous refrigerant exchange heat with tap water, and the evaporator (4) is used to make the liquid The refrigerant exchanges heat with the air and generates cold air. The condenser (3) is provided with a water inlet pipe (13) and a water outlet pipe (14). The water inlet pipe (13) and the water outlet pipe (14) pass through the shell (1) and extend out of the shell (1). The evaporator (4) is connected to a cold air pipe (41). The cold air pipe (41) is used to discharge cold air. The shell (1) is provided with an air inlet (11) and an air outlet (12). The input end of the fan (5) is located in the shell (1), and the output end of the fan (5) is connected to the air outlet (12).

2. A dual-supply heat pump for a central kitchen according to claim 1, characterized in that: A water receiving pan (15) is provided in the housing (1), the water receiving pan (15) is fixed horizontally in the housing (1), the fan (5) is provided on the water receiving pan (15), the compressor (2), the condenser (3) and the evaporator (4) are provided below the water receiving pan (15), the cold air pipe (41) is provided vertically, the lower end of the cold air pipe (41) is connected to the evaporator (4), and the upper side of the cold air pipe (41) passes through the water receiving pan (15) and extends above the water receiving pan (15).

3. The dual-supply heat pump for a central kitchen according to claim 2, characterized in that: The housing (1) is detachably connected to a filter mechanism (6), the filter mechanism (6) comprising a box body (61), a movable plate (62) and a plurality of fixing members (63), the air inlet (11) being provided on the top surface of the housing (1), the opening of the box body (61) being inserted upward into the air inlet (11), the box body (61) being provided with a groove, the movable plate (62) being covered on the groove of the box body (61), the movable plate (62) being provided with a plurality of filter holes (621), the fixing member (63) being fixed in the box body (61), and the fixing member (63) being in contact with the surface of the movable plate (62).

4. The dual-supply heat pump for a central kitchen according to claim 3, characterized in that: A memory alloy wire (64) is provided between the box body (61) and the movable plate (62). One end of the memory alloy wire (64) is fixed to the box body (61), and the other end is fixed to the movable plate (62). The memory alloy wire (64) deforms due to temperature difference and drives the movable plate (62) to move relative to the fixing member (63).

5. The dual-supply heat pump for a central kitchen according to claim 4, characterized in that: The memory alloy wire (64) is arranged outside the box body (61).

6. The dual-supply heat pump for a central kitchen according to claim 4, characterized in that: A connecting rod 1 (615) is fixed outside the box body (61), and a connecting rod 2 (622) is provided on one side of the movable plate (62). One end of the memory alloy wire (64) is fixed on the connecting rod 1 (615), and the other end is fixed on the connecting rod 2 (622). The memory alloy wire (64) is arranged to have multiple loops, and the looped memory alloy wire (64) is sleeved on the connecting rod 1 (615) and the connecting rod 2 (622).

7. The dual-supply heat pump for a central kitchen according to claim 6, characterized in that: A plurality of sliding plates (65) are rotatably connected to the connecting rod 1 (615) and the connecting rod 2 (622). The sliding plates (65) are arranged in pairs. The sliding plates (65) slide along the circumference of the connecting rod 1 (615) or the connecting rod 2 (622). The sliding direction of the sliding plates (56) surrounds the circumference of the connecting rod. The memory alloy wire (64) is hung on the sliding plates (65) and abuts against the two sliding plates (65).

8. The dual-heating heat pump for a central kitchen according to claim 7, characterized in that: An arc-shaped groove is provided on the sliding piece (65), and the middle portion of the sliding piece (65) is recessed.

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