Heat pump heating type dishwasher water cooling module

Abstract

The utility model discloses a heat pump heating type dishwasher water cooling module which comprises a base shell, a water tank base plate is installed above the base shell, a water tank body is fixed to the upper portion of the water tank base plate, a water tank opening is formed in the front portion of the water tank body, and a compressor is fixed to the top face of a bottom plate of the base shell. A vertically extending water tank body is fixed on the outer side wall of one side plate of the water tank main body, and an evaporation coil pipe is inserted into the water tank body in a sleeving manner; the heat exchange main connecting pipe serves as a water flowing pipeline, the long sleeve is directly installed on the outer wall face of the heat exchange main connecting pipe, the spiral winding channel arranged in the long sleeve is directly in contact with the outer wall face of the heat exchange main connecting pipe, and the contact area is large, so that the heat exchange effect is very high, and the heat exchange efficiency is greatly improved; according to the heat exchanger, the heat exchange main connecting pipe with a small size can be used for heat exchange, so that the occupied space is reduced, the evaporation coil is adopted for heat exchange in a water cooling mode, and the heat exchange efficiency is high.

Description

Technical field:

[0001] The utility model relates to the technical field of dishwasher-related equipment, and more specifically to a water cooling module of a heat pump heating type dishwasher. Background technology:

[0002] In today's dishwashers, one of the important parts is to heat the water, heating the incoming cold water to facilitate cleaning;

[0003] There are many existing heating methods, among which there are electric heating rods that directly heat water, and there are also heat pumps that heat water. For direct heating with electric heating rods, dry burning is prone to occur, and the power is also relatively high;

[0004] Using heat pump heat exchange mode, that is, using a heat exchange system composed of compressors and other components for heat exchange, its power is relatively low and the safety is high;

[0005] Among them, in the existing heat exchange method of the heat pump, the condenser connected to the compressor is coiled on the water flow pipe as an S-shaped coiled tube for heat exchange, and the S-shaped coiled tube is formed by bending and coiling a circular tube, and the outer wall of each ring body of the S-shaped coiled tube contacts the tube wall of the water flow pipe in line contact or point contact, so that the contact area between it and the water flow pipe is very small, and the heat exchange effect is not high. Therefore, it needs to increase the contact area, and the water flow pipe can only be coiled in an S shape, which is troublesome to manufacture and has high manufacturing cost. In addition, the evaporator heat exchange adopts air heat exchange, and the heat exchange efficiency is limited. Utility model content:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a water cooling module for a heat pump heating dishwasher. The module uses a heat exchange main connecting pipe as a water flow pipe, and directly installs a long sleeve on its outer wall surface. The spirally wound channel provided in the long sleeve directly contacts the outer wall surface of the heat exchange main connecting pipe, and the contact area is very large, so that the heat exchange effect is very high, and the heat exchange efficiency is greatly improved, so that the module can use a smaller volume of the heat exchange main connecting pipe for heat exchange, thereby reducing space occupation. In addition, the module adopts an evaporating coil and a water cooling method for heat exchange, and the heat exchange efficiency is high.

[0007] The solution of the utility model to solve the technical problem is:

[0008] A heat pump heating dishwasher water cooling module comprises a base shell, a water tank bottom plate is installed above the base shell, a water tank body is fixed on the upper part of the water tank bottom plate, the front part of the water tank body is a water tank opening, a compressor is fixed on the top surface of the bottom plate of the base shell, a vertically extending water tank body is fixed on the outer side wall of one side plate of the water tank body, and an evaporating coil is inserted in the water tank body; a support frame is fixed on the top surface of the bottom plate of the base shell, a water pump and a heat exchange main connecting pipe are installed on the support frame, and a compressor is fixed on the top surface of the bottom plate of the base shell, a vertically extending water tank body is fixed on the outer side wall of one side plate of the water tank body, and an evaporating coil is inserted in the water tank body; a support frame is fixed on the top surface of the bottom plate of the base shell, a water pump and a heat exchange main connecting pipe are installed on the support frame, and a water tank bottom plate is fixed on the upper side wall of the water tank body ... A bottom water circulation body is fixed on the bottom surface of the plate, a water inlet concave hole is formed in the middle of the top surface of the bottom water circulation body, a water outlet hole is formed on the side wall of the water inlet concave hole, the water outlet hole is communicated with the water outlet connector of the bottom water circulation body, a first water outlet connecting pipe is connected to the water outlet connector, the other end of the first water outlet connecting pipe is connected to one end of the heat exchange main connecting pipe, the other end of the heat exchange main connecting pipe is connected to the water inlet end of the water pump, and the water outlet end of the water pump is communicated with the return water connector on one side wall of the conversion connection shell through the connecting pipe;

[0009] A conversion connection shell is fixed to the bottom surface of the edge of the bottom water circulation body, and the inner cavity of the conversion connection shell is communicated with the return water connection head. A through hole extending downward is formed on the top edge of the bottom water circulation body, and the return water connection head is communicated with the inner cavity of the conversion connection shell;

[0010] A heat exchange sleeve is fixed on the outer wall surface of the tube body of the heat exchange main connecting tube, and a refrigerant feed pipe and a refrigerant discharge pipe are connected to the heat exchange sleeve. The refrigerant feed pipe is connected to the liquid outlet of the compressor, the refrigerant discharge pipe is connected to one end of the capillary tube, and the other end of the capillary tube is connected to the feed port of the evaporating coil, and the discharge port of the evaporating coil is connected to the feed port of the compressor.

[0011] The heat exchange sleeve body comprises an elongated sleeve, which is inserted into the vertical tube body of the heat exchange main connecting tube, and the annular end plates at both ends of the elongated sleeve are inserted into the corresponding vertical tube body parts, and the inner wall of the annular end plate is welded and fixed to the inner wall of the corresponding vertical tube body part, and a spirally wound spiral spacer is fixed on the inner wall of the elongated sleeve, and the outer wall of the spiral spacer is welded and fixed to the inner wall of the elongated sleeve, and the inner wall of the spiral spacer is tightly attached to the outer wall of the corresponding vertical tube body part, and a spiral winding channel is formed between the spiral spacer and the elongated sleeve, and a refrigerant feed pipe and a refrigerant discharge pipe are respectively connected to the two ends of the elongated sleeve, and the refrigerant feed pipe and the refrigerant discharge pipe are connected to the spiral winding channel.

[0012] The outstanding effects of the utility model are:

[0013] Compared with the prior art, it uses the heat exchange main connecting pipe as the water flow channel, and directly installs a long sleeve on its outer wall surface. The spirally wound channel in the long sleeve directly contacts the outer wall surface of the heat exchange main connecting pipe, and its contact area is very large, so that its heat exchange effect is very high, and the heat exchange efficiency is greatly improved, so that it can use a smaller volume of heat exchange main connecting pipe for heat exchange, thereby reducing space occupancy, and it uses an evaporating coil to exchange heat in a water-cooled manner, and its heat exchange efficiency is high. Description of the drawings:

[0014] Figure 1 It is a partial structural schematic diagram of the utility model for installing the water tank body;

[0015] Figure 2 yes Figure 1 A schematic diagram of the local structure without the sink body and other components;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model without the sink, sink chassis and other components;

[0017] Figure 4 yes Figure 3 A schematic diagram of the local structure without the bottom water circulation body and other components;

[0018] Figure 5 yes Figure 4 A partial top view of

[0019] Figure 6 It is a schematic diagram of the local structure between the heat exchange main connecting pipe, water pump and bottom water circulation body;

[0020] Figure 7 It is a schematic diagram of the local structure of the main heat exchange connecting pipe;

[0021] Figure 8 yes Figure 7 A partial cross-sectional view of

[0022] Fig. 9 It is a partial cross-sectional view of the water tank body. Specific implementation method:

[0023] For example, see Figures 1 to 9As shown, a water cooling module of a heat pump heating dishwasher comprises a base shell 10, a water tank bottom plate 40 is installed above the base shell 10, a water tank body 100 is fixed on the upper part of the water tank bottom plate 40, and the front part of the water tank body 100 is a water tank opening. A compressor 1 is fixed on the top surface of the bottom plate of the base shell 10, and a vertically extending water tank body 200 is fixed on the outer side wall of a side plate of the water tank body 100. A convex surface is formed by extending toward the water tank body 100 from the middle of a side plate of the water tank body 100, and the convex surface is closely attached to the outer side wall of the corresponding side plate of the water tank body 100 to increase the contact area. An evaporating coil 2 is inserted in the water tank body 200; A support frame 20 is fixed on the top surface, a water pump 21 and a heat exchange main connecting pipe 30 are installed on the support frame 20, a bottom water circulation body 41 is fixed on the bottom surface of the water tank bottom plate 40, a water inlet concave hole 42 is formed in the middle of the top surface of the bottom water circulation body 41, a water outlet hole is formed on the side wall of the water inlet concave hole 42, the water outlet hole is communicated with a water outlet connector 43 of the bottom water circulation body 41, a first water outlet connecting pipe 431 is connected to the water outlet connector 43, the other end of the first water outlet connecting pipe 431 is connected to one end of the heat exchange main connecting pipe 30, the other end of the heat exchange main connecting pipe 30 is connected to the water inlet end of the water pump 21, and the water outlet end of the water pump 21 is communicated with a return water connector 51 on a side wall of the conversion connection shell 50 through a connecting pipe;

[0024] A conversion connection shell 50 is fixed to the bottom surface of the edge of the bottom water circulation body 41, and the inner cavity of the conversion connection shell 50 is communicated with the middle flow through hole of the return water connection head 51. A through hole extending downward is formed on the top edge of the bottom water circulation body 41, and the through hole is communicated with the inner cavity of the conversion connection shell 50, and the return water connection head 51 is communicated with the inner cavity of the conversion connection shell 50;

[0025] A heat exchange sleeve 60 is fixed on the outer wall surface of the tube body of the heat exchange main connecting tube 30, and a refrigerant feed pipe and a refrigerant discharge pipe (indicated by dotted lines in the accompanying drawings) are connected to the heat exchange sleeve 60. The refrigerant feed pipe is connected to the liquid outlet of the compressor 1, and the refrigerant discharge pipe is connected to the feed port of the drying filter. The discharge port of the drying filter is connected to one end of the capillary tube 3 (the drying filter is a commonly used component, which can be installed or not. If the drying filter is installed, most of the moisture and impurities in the refrigerant can be absorbed and filtered out at the drying filter, avoiding damage to the capillary tube and the evaporator. Therefore, it is not shown in the accompanying drawings), and the other end of the capillary tube 3 is connected to the feed port of the evaporating coil 2, and the discharge port of the evaporating coil 2 is connected to the feed port of the compressor 1.

[0026] The heat exchange sleeve body 60 includes an elongated sleeve 63, which is inserted into the vertical tube body of the heat exchange main connecting pipe 30, and the annular end plates at both ends of the elongated sleeve 63 are inserted into the corresponding vertical tube body parts, and the inner wall of the annular end plate is welded and fixed to the inner wall of the corresponding vertical tube body part, and a spirally wound spiral spacer 64 is fixed on the inner wall of the elongated sleeve 63, and the outer wall of the spiral spacer 64 is welded and fixed to the inner wall of the elongated sleeve 63, and the inner wall of the spiral spacer 64 is tightly attached to the outer wall of the corresponding vertical tube body part, and a spirally wound channel is formed between the spiral spacer 64 and the elongated sleeve 63, and a refrigerant feed pipe and a refrigerant discharge pipe are respectively connected near the two ends of the elongated sleeve 63, and the refrigerant feed pipe and the refrigerant discharge pipe are connected to the spirally wound channel.

[0027] The elongated sleeve 63 is fixed on the top surface of the support frame 20 through a plurality of U-shaped clamping pieces 5, and the base of the water pump 21 is fixed on the top surface of the support frame 20. The specific connection method is that the elongated sleeve 63 is inserted into the groove of the U-shaped clamping piece 5, the two ends of the U-shaped clamping piece 5 are fixed on the top surface of the support frame 20, and the elongated sleeve 63 is clamped between the inner side wall of the groove of the U-shaped clamping piece 5 and the top surface of the support frame 20 to achieve installation and fixation.

[0028] The spirally wound channel in the heat exchange jacket body 60 is in direct contact with the outer side wall of the vertical tube body of the heat exchange main connecting pipe 30, and its contact area is large, which greatly improves its heat exchange effect and heat exchange efficiency, so that only one heat exchange main connecting pipe 30 is needed to heat up the water flowing inside it, so that its heat exchange effect is very high, and the heat exchange efficiency is greatly improved, so that it can use a smaller volume of the heat exchange main connecting pipe 30 and the heat exchange jacket body 60 for heat exchange, thereby reducing space occupancy.

[0029] The bottom of the water tank body 200 is connected with a water inlet and a water outlet, and the evaporation coil 2 is coiled in an S shape in the water tank body 200 .

[0030] Furthermore, the top edge of the bottom water circulation body 41 is movably connected to a cover plate via a hinge shaft, and the cover plate is pressed against the top surface of the bottom water circulation body 41 and covers the corresponding through hole;

[0031] A drain port is formed on one side of the water inlet recess 42, which is connected to a drain pipe port 411 formed on the outer wall of the bottom water circulation body 41. The drain pipe port 411 is connected to the water inlet of a water outlet control valve. The water outlet head of the water tank body 200 is also connected to the water inlet of another water outlet control valve through a connecting pipe. The water outlets of the two water outlet control valves are connected to the two end connectors of a three-way connector through a connecting pipe (the water control valve and the connecting pipe are omitted in the accompanying drawings). The three-way connector also has a connector connected to a main water outlet pipe 9 fixed on a side plate of the base shell 10.

[0032] In this embodiment, a mounting hole is provided on one side plate of the base shell 10, and a main water inlet pipe is inserted into the mounting hole. The outer end of the main water inlet pipe extends out of the base shell 10, and the inner end of the main water inlet pipe extends into the base shell 10 and is connected with the inlet of the main control valve fixed in the base shell 10. The outlet of the main control valve is connected to the water inlet connector 52 through a connecting pipe (some components such as the main control valve are omitted in the drawing and not shown), and the water inlet connector 52 is connected to the inner cavity of the conversion connection shell 50.

[0033] All valve bodies in this embodiment are electric valve bodies, and all electrical components are electrically connected to the control host through electrical connecting lines. The control host is fixed in the outer shell of the dishwasher. It is a conventional structure and will not be described in detail here.

[0034] When in use, the main valve installed outside the main water inlet pipe is opened, the main control valve is opened (the main control valve and the water outlet control valve are both installed inside the base shell 10, and the water inlet of the main control valve extends out of the base shell 10 and is connected to the external water supply pipe. This is a conventional structure and is not shown in the accompanying drawings), and water enters the conversion connection shell 50, and the cover plate is pushed open, so that the water enters the top surface of the conversion connection shell 50 and is in the sink chassis 40 and poured into the sink body 100 installed on the sink chassis 40. Generally, about three liters of water are poured in (it can be controlled by manually controlling the opening time of the main control valve and observing the scale lines on the inner wall of the sink), and the main control valve is closed. At the same time, the water inlet head of the water tank body 200 is connected to a connecting pipe, the end of which can be connected to the water outlet of a water inlet pump (which is installed in the base shell 10, which is a conventional structure and will not be described in detail here, and is not shown in the drawings), and the water inlet of the water inlet pump is connected to a valve, and the water inlet end of the valve is connected to a water pipe, which can connect the other end of the water pipe to a water storage tank body installed at the base shell 10 (not shown in the drawings, it can be directly formed in the base shell 10 or a water storage tank body can be installed, and the inlet of the water storage tank body The base shell 10 can be extended out and the cover body can be screwed on. When water needs to be filled, the cover body can be opened and filled manually). It is generally connected to the bottom of the water storage tank body, which can fill water into the water storage tank body. Through the operation of the water inlet pump, the water in the water storage tank body enters the water tank body 200. The water tank body 200 can be a transparent box, so that the water filling status can be checked (a liquid level sensor can also be installed in the water tank body 200, which is a conventional method and will not be described in detail). When it is full, the water inlet pump stops running and the valve can be closed at the same time.

[0035] Then, the compressor 1 is running, the water pump 21 is running, and the refrigerant comes out of the compressor 1 as a high-temperature and high-pressure gas, which enters the spiral winding channel, and the water liquid previously filled in the bottom water liquid circulation body 41 and the water inlet recessed hole 42 are filled, and the water liquid circulates through the operation of the water pump 21, and enters the heat exchange main connecting pipe 30, so that the water liquid in the vertical pipe body of the heat exchange main connecting pipe 30 exchanges heat with the high-temperature and high-pressure refrigerant liquid in the spiral winding channel, thereby increasing the temperature of the water liquid flowing in the vertical pipe body of the heat exchange main connecting pipe 30, and then, After passing through the water pump 21, the water enters the conversion connection housing 50, pushes the cover plate open, and then enters the water tank bottom plate 40 to realize water circulation. Each time it passes through the heat exchange main connection pipe 30, it is heated once, and the general water temperature reaches 40° to 50° (a temperature sensor is fixed on the bottom surface of the bottom plate at the water outlet hole of the water inlet concave hole 42, and the sensing end of the temperature sensor extends into the water outlet hole, so that the temperature of the water at the water outlet hole can be sensed. It is a conventional structure and will not be described in detail here, and it is not shown in the drawings). At this time, the compressor 1 can stop running;

[0036] The temperature of the refrigerant exchanged in the heat exchange main connecting pipe 30 drops to become a high-pressure liquid, and then enters the drying filter, enters the capillary tube 3, and forms a low-pressure liquid, and then enters the evaporating coil 2. The evaporating coil 2 exchanges heat with the water in the water tank 100, so that the refrigerant is cooled to become a low-pressure gas and returns to the compressor 1;

[0037] Among them, the water directly exchanges heat with the evaporating coil 2, and the heat exchange effect is good. In addition, since the middle part of the side plate of the water tank body 200 close to the water tank body 100 extends toward the water tank body 100 to form a convex surface, the convex surface is close to the outer side wall of the corresponding side plate of the water tank body 100, so that the water in the water tank body 200 can exchange heat with the water tank body 100. After the evaporating coil 2 exchanges heat with the water in the water tank body 200 for a long time, the temperature of the water tank body 200 will gradually decrease, while the water temperature in the water tank body 100 is relatively high. In this way, the temperature of the water tank body 200 can be further increased to ensure the heat exchange effect between it and the evaporating coil 2.

[0038] Among them, a temperature sensor can also be installed in the water tank body 200. The temperature sensor can detect the temperature of the water tank body 200. When its temperature is lower than the set value (such as lower than 10°C), it means that the water temperature in the water tank body 200 is too low. At this time, the corresponding water outlet control valve can be opened to discharge the water from the main water outlet pipe 9. At the same time, the water with higher temperature is poured into the water storage tank body, and the water inlet pump and valve are opened to pour the water with higher temperature into the water tank body 200, so as to ensure heat exchange with the evaporating coil 2 to ensure the normal operation of the evaporating coil 2. This situation is generally more common in winter.

Claims

1. A water cooling module for a heat pump heating dishwasher, comprising a base housing (10), a water tank bottom plate (40) being installed above the base housing (10), a water tank body (100) being fixed on the upper part of the water tank bottom plate (40), and a water tank opening being formed at the front of the water tank body (100), characterized in that: A compressor (1) is fixed on the top surface of the bottom plate of the base shell (10); a vertically extending water tank body (200) is fixed on the outer side wall of a side plate of the water tank body (100); an evaporating coil (2) is inserted into the water tank body (200); a support frame (20) is fixed on the top surface of the bottom plate of the base shell (10); a water pump (21) and a heat exchange main connecting pipe (30) are installed on the support frame (20); a bottom water circulation body (41) is fixed on the bottom surface of the water tank bottom plate (40); a bottom water circulation body (41) is formed in the middle of the top surface A water inlet recessed hole (42) is provided, and a water outlet hole is formed on the side wall of the water inlet recessed hole (42), the water outlet hole is communicated with a water outlet connector (43) of a bottom water circulation body (41), a first water outlet connector (431) is connected to the water outlet connector (43), the other end of the first water outlet connector (431) is connected to one end of a heat exchange main connector (30), the other end of the heat exchange main connector (30) is connected to the water inlet end of a water pump (21), and the water outlet end of the water pump (21) is communicated with a return water connector (51) on a side wall of a conversion connection housing (50) through a connecting pipe; A conversion connection shell (50) is fixed to the bottom surface of the edge of the bottom water circulation body (41), the inner cavity of the conversion connection shell (50) is in communication with the return water connection head (51), a through hole extending downward is formed on the top edge of the bottom water circulation body (41), the through hole is in communication with the inner cavity of the conversion connection shell (50), and the return water connection head (51) is in communication with the inner cavity of the conversion connection shell (50); A heat exchange sleeve (60) is fixed on the outer wall surface of the tube body of the heat exchange main connecting tube (30), and a refrigerant feed pipe and a refrigerant discharge pipe are connected to the heat exchange sleeve (60). The refrigerant feed pipe is connected to the liquid outlet of the compressor (1), and the refrigerant discharge pipe is connected to one end of the capillary tube (3). The other end of the capillary tube (3) is connected to the feed port of the evaporating coil (2), and the discharge port of the evaporating coil (2) is connected to the feed port of the compressor (1).

2. A water cooling module for a heat pump heating dishwasher according to claim 1, characterized in that: The heat exchange sleeve body (60) comprises an elongated sleeve (63), which is inserted into the vertical tube body of the heat exchange main connecting pipe (30), and the annular end plates at both ends of the elongated sleeve (63) are inserted into the corresponding vertical tube body, and the inner wall of the annular end plate is welded and fixed to the inner wall of the corresponding vertical tube body. A spirally wound spiral spacer (64) is fixed on the inner wall of the elongated sleeve (63), and the outer wall of the spiral spacer (64) is welded and fixed to the inner wall of the elongated sleeve (63). The inner wall of the spiral spacer (64) is tightly attached to the outer wall of the corresponding vertical tube body, and a spirally wound channel is formed between the spiral spacer (64) and the elongated sleeve (63). A refrigerant feed pipe and a refrigerant discharge pipe are respectively connected near the two ends of the elongated sleeve (63), and the refrigerant feed pipe and the refrigerant discharge pipe are communicated with the spirally wound channel.

3. A water cooling module for a heat pump heating dishwasher according to claim 2, characterized in that: The elongated sleeve (63) is fixed on the top surface of the support frame (20) via a plurality of U-shaped clamping pieces (5), and the base of the water pump (21) is fixed on the top surface of the support frame (20).

4. A water cooling module for a heat pump heating dishwasher according to claim 1, characterized in that: A liquid discharge port is formed on one side of the water inlet recessed hole (42), and is communicated with a liquid discharge pipe port (411) formed on the outer side wall of the bottom water circulation body (41).

5. The water cooling module of a heat pump heating dishwasher according to claim 1, characterized in that: The bottom of the water tank body (200) is connected to a water inlet and a water outlet, and the evaporation coil (2) is coiled in an S shape and is located in the water tank body (200).

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