Integrated compressor and heat pump system

Abstract

The invention belongs to the technical field of heat pumps, and discloses an integrated compressor and a heat pump system. The integrated compressor comprises a double-layer box body, a compressor body and a heat exchange tube, the double-layer box body comprises an inner box body and an outer box body, the inner box body is arranged in the outer box body, and an interlayer space is formed between the inner box body and the outer box body; the compressor body is arranged in the inner box body, and an air inlet of the compressor body is used for communicating with an external evaporator; the heat exchange pipe is arranged in the interlayer space, one end of the heat exchange pipe communicates with an exhaust port of the compressor body, and the other end of the heat exchange pipe penetrates through the outer box and is used for communicating with an external evaporator. And the interlayer space is filled with a heat exchange medium, and the heat exchange medium is in heat exchange connection with the heat exchange pipe and can supply heat to an external heat system. According to the integrated compressor, the energy efficiency of the compressor body can be improved, the installation space is saved, no additional condenser needs to be arranged, the flowing path length of heat circulation and the pressure drop in the flowing process are shortened, and the production cost and the operation noise are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pumps, and in particular to an integrated compressor and heat pump system. Background Art

[0002] In the compressor unit, a shell and tube heat exchanger performs heat exchange between the refrigerant and the secondary coolant provided to the user. The refrigerant flows in the heat exchange tubes placed in the shell and tube, and the secondary coolant flows outside the heat exchange tubes in the shell and tube.

[0003] In heating mode, current compressor units heat domestic hot water by releasing heat from the refrigerant during the heating cycle. The heat exchanger and condenser in this heating cycle are separated, which complicates the connection of external piping for the heating cycle, increasing costs and potentially exposing refrigerant leaks. Furthermore, the increased size of the unit increases pressure drop, reducing heating efficiency. Furthermore, the increased pressure drop requires increased compressor power, resulting in significant noise and significantly impacting user comfort.

[0004] Therefore, there is an urgent need to provide a new integrated compressor and heat pump system to solve the above technical problems in the prior art. Summary of the Invention

[0005] An object of the present invention is to provide an integrated compressor that can improve the energy efficiency of the compressor, save installation space, and reduce the manufacturing cost of the overall equipment.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The integrated compressor includes a double-layer box, a compressor body and a heat exchange tube. The double-layer box includes an inner box and an outer box. The inner box is arranged in the outer box, and there is an interlayer space between the inner box and the outer box; the compressor body is arranged in the inner box, and the air inlet of the compressor body is used to communicate with the external evaporator; the heat exchange tube is arranged in the interlayer space, one end of the heat exchange tube is connected to the exhaust port of the compressor body, and the other end passes through the outer box and is used to communicate with the external evaporator; wherein the interlayer space is filled with a heat exchange medium, the heat exchange medium is connected to the heat exchange tube for heat exchange, and can supply heat to the external heat system.

[0008] Optionally, a sound-absorbing layer is attached to the inner wall of the inner box.

[0009] Optionally, the outer wall of the outer box is provided with a damping coating.

[0010] Optionally, the sound-absorbing layer is made of sound-absorbing cotton, sound-insulating cotton or a sound-absorbing board.

[0011] Optionally, the heat exchange tube is spiral-shaped and is wound around the circumferential outer wall of the inner box.

[0012] Optionally, the outer box is provided with a heat exchange inlet and a heat exchange outlet, the heat exchange medium flows in from the heat exchange inlet and flows out from the heat exchange outlet, and the heat exchange inlet is located below the heat exchange outlet.

[0013] Optionally, the pitch of the heat exchange tube is equal to the outer diameter of the heat exchange tube.

[0014] Optionally, the compressor body is a scroll compressor or a rotor compressor.

[0015] Optionally, the heat exchange medium is water or refrigerant.

[0016] Another object of the present invention is to provide a heat pump system, which includes the integrated compressor as described in any of the above solutions.

[0017] Beneficial effects:

[0018] The integrated compressor in the present invention uses a double-layer box to install the compressor body and heat exchange tubes. The compressor body is installed in the inner box. The high-temperature gas generated by the compressor body after working passes through the heat exchange tube, and the heat exchange tube exchanges heat with the heat exchange medium in the interlayer space between the inner box and the outer box, thereby cooling the high-temperature gas in the heat exchange tube, so that the heat exchange tube is used as a condenser and forms a heat cycle with the evaporator. In this process, the heat exchange medium absorbs heat and is heated. The heat exchange medium can also reduce the temperature of the compressor body and improve the operating efficiency of the compressor body. After the heat exchange is completed, the heat exchange medium supplies heat to the external heat system to realize the recycling of the waste heat of the compressor body, improve the energy efficiency of the compressor body, and save installation space. No additional condenser is required, the flow path length of the heat cycle and the pressure drop of the flow process are shortened, and the production cost and operating noise are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an integrated compressor provided in a specific embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the double-layer structure of a double-layer box provided by a specific embodiment of the present invention;

[0021] Figure 3 Schematic diagram of a heat pump system provided by a specific embodiment of the present invention.

[0022] In the picture:

[0023] 110, inner box; 111, interlayer space; 120, outer box; 121, heat exchange outlet; 122, heat exchange inlet; 130, heat exchange medium; 140, sound absorbing layer; 150, damping coating;

[0024] 200, compressor body; 210, air inlet; 220, exhaust port;

[0025] 300. Heat exchange tube; 400. Evaporator; 500. Throttling device. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0030] like Figure 1 and Figure 2As shown, the integrated compressor includes a double-layer box, a compressor body 200 and a heat exchange pipe 300, the double-layer box includes an inner box 110 and an outer box 120, the inner box 110 is arranged in the outer box 120, and there is an interlayer space 111 between the inner box 110 and the outer box 120; the compressor body 200 is arranged in the inner box 110, and the air inlet 210 of the compressor body 200 is used to communicate with the external evaporator 400; the heat exchange pipe 300 is arranged in the interlayer space 111, one end of the heat exchange pipe 300 is connected to the exhaust port 220 of the compressor body 200, and the other end passes through the outer box 120 and is used to communicate with the external evaporator 400; wherein the interlayer space 111 is filled with a heat exchange medium 130, the heat exchange medium 130 is connected to the heat exchange pipe 300 for heat exchange, and can supply heat to the external heat system.

[0031] The integrated compressor in this embodiment uses a double-layer box to install the compressor body 200 and the heat exchange tube 300. The compressor body 200 is installed in the inner box 110. The high-temperature gas generated by the compressor body 200 after operation passes through the heat exchange tube 300, and the heat exchange tube 300 exchanges heat with the heat exchange medium 130 in the interlayer space 111 between the inner box 110 and the outer box 120, thereby cooling the high-temperature gas in the heat exchange tube 300, so that the heat exchange tube 300 is used as a condenser and forms a heat cycle with the evaporator 400. In this process, the heat exchange medium 130 absorbs heat and is heated. The heat exchange medium 130 can also reduce the temperature of the compressor body 200 and improve the operating efficiency of the compressor body 200. After the heat exchange is completed, the heat exchange medium 130 supplies heat to the external heat system to realize the recycling of the waste heat of the compressor body 200, improve the energy efficiency of the compressor body 200, save installation space, and do not require additional condensers. The flow path length of the heat cycle and the pressure drop of the flow process are shortened, thereby reducing production costs and operating noise.

[0032] Optionally, the heat exchange tube 300 is spirally shaped and wound around the circumferential outer wall of the inner casing 110. The spiral heat exchange tube 300 can effectively extend the length of the heat exchange tube 300, increase the contact area between the heat exchange tube 300 and the heat exchange medium 130, improve the heat exchange efficiency, and fully exchange heat. In addition, the heat exchange tube 300 wound around the circumferential outer wall of the inner casing 110 improves the installation stability of the heat exchange tube 300.

[0033] Furthermore, the outer housing 120 is provided with a heat exchange inlet 122 and a heat exchange outlet 121. The heat exchange medium 130 flows into the heat exchange inlet 122 and flows out of the heat exchange outlet 121. The heat exchange inlet 122 is located below the heat exchange outlet 121. Thus, the heat exchange medium 130 flows in from the bottom of the outer housing 120 and flows out from the top of the outer housing 120. That is, the cooler heat exchange medium 130 exchanges heat with the heat exchange tube 300 with a lower temperature, and the hotter heat exchange medium 130 exchanges heat with the heat exchange tube 300 with a higher temperature, thereby improving the heat exchange efficiency and achieving full absorption of heat by the heat exchange tube 300. It should be noted that the upper end of the heat exchange tube 300 is connected to the exhaust port 220 above the compressor body 200. After the spiral section of the heat exchange tube 300 ends, it is led out to the outside of the outer housing 120 by a straight pipe. No further details will be given here.

[0034] In this embodiment, the pitch of the heat exchange tube 300 is equal to the outer diameter of the heat exchange tube 300. That is, when the heat exchange tube 300 is spirally shaped, each coil of the coil abuts against another adjacent coil of the coil, thereby extending the length of the heat exchange tube 300 as much as possible within a limited space, thereby increasing the contact area with the heat exchange medium 130 and improving the heat exchange efficiency. This will not be further described here.

[0035] Furthermore, the compressor body 200 is a scroll compressor or a rotor compressor. The scroll compressor belongs to the third generation of compressors, the whole machine has low vibration, the suction and exhaust process is almost continuous, the whole machine noise is very low, its torque change is small, the balance is high, the vibration is small, and the operation is smooth, so it is easy to operate and easy to automate. Because it has few moving parts and no reciprocating motion mechanism, it has a simple structure, small size, light weight, few parts, high reliability, and a service life of more than 20 years. The rotor compressor has few parts and few wearing parts, high reliability, and is easy to operate and maintain, runs smoothly and safely, has low vibration, and strong adaptability to working conditions. Those skilled in the art can select the corresponding compressor according to specific needs, which will not be described here.

[0036] Optionally, the heat exchange medium 130 is water or a refrigerant. When water is used, hot water at approximately 55°C can be heated for daily use. When the heat exchange medium 130 is a refrigerant, such as R134a, the heat exchange medium 130 can be linked to an external cooling tower to preheat chilled water using waste heat from the compressor 200, thereby reducing the load on the main unit. This will not be further described here.

[0037] like Figure 2As shown, the inner wall of the inner box 110 is provided with a sound-absorbing layer 140. Specifically, the sound-absorbing layer 140 is made of sound-absorbing cotton, sound-isolating cotton or sound-absorbing panels. The provision of the sound-absorbing layer 140 can absorb the noise generated during the operation of the compressor body 200, and play a role in sound insulation and attraction. Furthermore, commonly used sound-absorbing materials include wooden sound insulation panels, ceramic aluminum sound-absorbing panels, glass fiber sound insulation cotton, polyester fiber sound-absorbing cotton, eggshell sound-absorbing cotton, soft-pack sound-absorbing panels, perforated sound-absorbing panels, sound-absorbing cloth, sound-absorbing blankets, etc. Depending on the place of use, factors such as moisture-proof, flame retardant, sound absorption, decorative effect, economy, and convenient construction need to be considered.

[0038] Furthermore, the outer wall of the outer box 120 is provided with a damping coating 150. Damping coating 150 is a sound-insulating coating formed by applying a damping coating to the surface of an object. Made from a polymer resin with an appropriate amount of fillers and auxiliary materials, it is a special coating that can be applied to the surface of various metal plate structures. It has vibration damping, thermal insulation, and a certain sealing performance. It actively absorbs noise, converts vibration mechanical energy into heat energy, and effectively controls vibration and noise at the source.

[0039] It should be noted that after adopting the damping coating 150 and the sound-absorbing layer 140, the compressor body 200 has 5 layers of sound insulation. On the noise propagation path of the compressor, it passes through the sound-absorbing layer 140, the inner box 110, the heat exchange medium 130, the outer box 120 and the damping coating 150 in sequence, reducing and absorbing noise layer by layer, and finally greatly reducing the noise generated by the operation of the compressor body 200 and improving the comfort of use.

[0040] like Figure 3 As shown, this embodiment also provides a heat pump system, which includes the integrated compressor described in any of the above-mentioned solutions. The heat pump system specifically includes a compressor body 200, a heat exchange tube 300, a throttling device 500, and an evaporator 400, which are sequentially connected and form a circulation. This heat pump system has the beneficial effects of the integrated compressor described in any of the above-mentioned solutions and will not be further described here.

[0041] Specifically, the heat pump system allows the high-temperature gas generated after the compressor body 200 is working to pass through the heat exchange tube 300, and the heat exchange tube 300 exchanges heat with the heat exchange medium 130 in the interlayer space 111 between the inner box body 110 and the outer box body 120, thereby cooling the high-temperature gas in the heat exchange tube 300, so that the heat exchange tube 300 is used as a condenser and forms a heat cycle with the evaporator 400. During this process, the heat exchange medium 130 absorbs heat and is heated. The heat exchange medium 130 can also reduce the temperature of the compressor body 200 and improve the operating efficiency of the compressor body 200. After the heat exchange is completed, the heat exchange medium 130 supplies heat to the external heat system to realize the recycling of the waste heat of the compressor body 200, improve the energy efficiency of the compressor body 200, save installation space, and do not require additional condenser equipment, shorten the flow path length of the heat cycle and the pressure drop of the flow process, and reduce production costs and operating noise.

[0042] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated compressor, characterized in that: include: A double-layer box, comprising an inner box (110) and an outer box (120), wherein the inner box (110) is disposed in the outer box (120), and an interlayer space (111) is provided between the inner box (110) and the outer box (120); A compressor body (200), the compressor body (200) being disposed in the inner box (110), and an air inlet (210) of the compressor body (200) being used for communicating with an external evaporator (400); A heat exchange tube (300), the heat exchange tube (300) being arranged in the interlayer space (111), one end of the heat exchange tube (300) being connected to the exhaust port (220) of the compressor body (200), and the other end of the heat exchange tube (300) passing through the outer box (120) and being used to communicate with the external evaporator (400); wherein, The interlayer space (111) is filled with a heat exchange medium (130), and the heat exchange medium (130) is connected to the heat exchange tube (300) for heat exchange and can supply heat to an external heat system.

2. The integrated compressor according to claim 1, characterized in that The inner wall of the inner box (110) is provided with a sound absorbing layer (140).

3. The integrated compressor according to claim 2, characterized in that The outer wall of the outer box (120) is provided with a damping coating (150).

4. The integrated compressor according to claim 2, characterized in that The sound absorbing layer (140) is made of sound absorbing cotton, sound insulating cotton or a sound absorbing board.

5. The integrated compressor according to claim 1, characterized in that The heat exchange tube (300) is spiral-shaped and is wound around the circumferential outer wall of the inner box (110).

6. The integrated compressor according to claim 5, characterized in that The outer box (120) is provided with a heat exchange inlet (122) and a heat exchange outlet (121); the heat exchange medium (130) flows in from the heat exchange inlet (122) and flows out from the heat exchange outlet (121); and the heat exchange inlet (122) is located below the heat exchange outlet (121).

7. The integrated compressor according to claim 5, characterized in that The pitch of the heat exchange tube (300) is equal to the outer diameter of the heat exchange tube (300).

8. The integrated compressor according to any one of claims 1 to 7, characterized in that: The compressor body (200) is a scroll compressor or a rotor compressor.

9. The integrated compressor according to any one of claims 1 to 7, characterized in that: The heat exchange medium (130) is water or refrigerant.

10. A heat pump system, characterized in that Comprising the integrated compressor according to any one of claims 1-9.

Images