Steam generating device based on refrigerating system and air conditioner

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a steam generating device based on a refrigerating system and an air conditioner. The steam generation device based on the refrigerating system comprises a heat collection pipeline, a double-layer heat exchange structure, a gas-liquid separator and a vacuum pump. The heat collection pipeline is arranged in a condenser of the refrigerating system, the double-layer heat exchange structure is provided with a first heat exchange layer and a second heat exchange layer, and the second heat exchange layer is of a closed structure and is arranged in the first heat exchange layer. The inlet end of the heat collection pipeline communicates with the first heat exchange layer through a circulating pump, and the outlet end of the heat collection pipeline communicates with the first heat exchange layer and the second heat exchange layer through two branches correspondingly. The inlet end of the gas-liquid separator is communicated with the heat exchange layer II, and the gas outlet end of the gas-liquid separator is communicated with the gas supply equipment through the vacuum pump. The air conditioner comprises the steam generating device based on the refrigerating system. According to the steam generating device based on the refrigerating system and the air conditioner, heat waste is reduced, pollution to the environment is reduced, and the refrigerating effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, and in particular to a steam generating device and an air conditioner based on a refrigeration system. Background Art

[0002] The refrigeration system generally has an evaporator and a condenser. During the refrigeration process, the condenser will release heat, which will generally be directly discharged into the surrounding environment, causing heat waste and environmental pollution. Utility Model Content

[0003] The utility model aims to provide a steam generating device and an air conditioner based on a refrigeration system, so as to alleviate the technical problems of heat waste and environmental pollution existing in the refrigeration system in the prior art.

[0004] The utility model provides a steam generating device based on a refrigeration system, which comprises a heat collecting pipeline, a double-layer heat exchange structure, a gas-liquid separator and a vacuum pump.

[0005] The heat collection pipeline is arranged in the condenser of the refrigeration system. The double-layer heat exchange structure has a heat exchange layer 1 and a heat exchange layer 2. The heat exchange layer 2 is a closed structure and is arranged in the heat exchange layer 1.

[0006] The inlet end of the heat collection pipeline is connected to the heat exchange layer one through a circulation pump, and the outlet end of the heat collection pipeline is connected to the heat exchange layer one and the heat exchange layer two through two branches respectively; the inlet end of the gas-liquid separator is connected to the heat exchange layer two, and the gas outlet end of the gas-liquid separator is connected to the gas-generating equipment through the vacuum pump.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] During the refrigeration process, the condenser of the refrigeration system will release heat, and the liquid flowing through the heat collection pipeline can absorb the heat released by the condenser. Under the action of the circulating pump, the high-temperature liquid carrying heat in the heat collection pipeline can be divided into two paths through two branches and pumped to the heat exchange layer 1 and the heat exchange layer 2 of the double-layer heat exchange structure respectively, and circulate back and forth, so that the heat released by the condenser is continuously transferred to the double-layer heat exchange structure. Under the action of the vacuum pump, the closed heat exchange layer 2 will be evacuated to reduce the internal pressure and form a negative pressure, so that the boiling point of the liquid in the heat exchange layer 2 will be reduced, which is conducive to the evaporation of the liquid in the heat exchange layer 2 at a lower temperature to form steam; because the heat exchange layer 1 is not evacuated, the liquid in the heat exchange layer 2 can absorb the heat of the liquid in the heat exchange layer 1, so that the liquid in the heat exchange layer 2 can absorb heat and evaporate to produce steam. Under the action of the vacuum pump, the steam generated in the second heat exchange layer can be sucked into the gas-liquid separator, and after gas-liquid separation in the gas-liquid separator, the drier steam is output from the gas outlet of the gas-liquid separator and pumped to the gas-using equipment for use by the gas-using equipment. In this way, the waste heat conversion of the condenser is realized, the heat waste of the refrigeration system is reduced, and the pollution to the environment is reduced.

[0009] In addition, using the heat collection pipeline to collect the heat released by the condenser is helpful to reduce the temperature of the condenser and improve the heat dissipation efficiency of the condenser, thereby optimizing the cooling effect of the refrigeration system.

[0010] Preferably, as an implementable embodiment, the heat exchange layer 2 is immersed in the liquid in the heat exchange layer 1.

[0011] The beneficial effect is that the waste heat conversion efficiency is improved.

[0012] Preferably, as an implementable embodiment, the vacuum pump is connected to the heat exchange layer one via the gas-using equipment, and the discharge end of the gas-liquid separator is connected to the heat exchange layer one.

[0013] The beneficial effect is that the recycling of liquid is achieved and waste is reduced.

[0014] Preferably, as an implementable embodiment, a liquid replenishment port is provided between the gas-consuming equipment and the heat exchange layer one.

[0015] The beneficial effect is that it prevents the waste heat conversion efficiency from being affected by insufficient liquid volume.

[0016] Preferably, as an implementable embodiment, an automatic pressure regulating valve is provided at the liquid inlet, a pressure sensor is installed in the heat exchange layer 1, and the pressure sensor is communicatively connected with the automatic pressure regulating valve.

[0017] The beneficial effect is that automatic water replenishment can be achieved, and the water replenishment is more timely.

[0018] Preferably, as an implementable embodiment, a one-way valve is connected between the vacuum pump and the gas-consuming equipment.

[0019] The beneficial effect is that steam backflow can be avoided.

[0020] Preferably, as an implementable embodiment, a three-way valve is provided between the heat collection pipeline and the branch, the inlet end of the three-way valve is connected to the heat collection pipeline, and the two outlet ends of the three-way valve are respectively connected to the two branches;

[0021] And / or, a first stop valve is connected between the inlet end of the heat collection pipeline and the heat exchange layer 1, and a second stop valve is connected between the outlet end of the heat collection pipeline and the branch.

[0022] The beneficial effect is that it can better adapt to actual needs and meet the needs of starting or stopping heat exchange.

[0023] Preferably, as an implementable embodiment, a filter is connected between the gas-consuming equipment and the heat exchange layer 1, and the filter is used to filter impurities in the liquid.

[0024] The beneficial effect is that the cleanliness of the liquid in the heat exchange layer 1 is ensured.

[0025] Preferably, as an implementable embodiment, the first heat exchange layer is a water tank, the second heat exchange layer is a closed heat exchanger, and the closed heat exchanger is arranged in the water tank;

[0026] Alternatively, the double-layer heat exchange structure is a shell and tube heat exchanger, the shell of the shell and tube heat exchanger is the heat exchange layer one, and the heat transfer tube bundle of the shell and tube heat exchanger is the heat exchange layer two.

[0027] The beneficial effect is that the requirements of the double-layer heat exchange structure for heat exchange function can be met.

[0028] The utility model also provides an air conditioner, which comprises an evaporator, a condenser and the steam generating device based on the refrigeration system, wherein the evaporator is connected to the condenser, and the heat collecting pipeline is arranged in the condenser.

[0029] The beneficial effect is that the air conditioner provided by the utility model has all the advantages of the steam generating device based on the refrigeration system, and can realize the waste heat conversion of the condenser, reduce the heat waste of the air conditioner, and reduce the pollution to the environment; in addition, the refrigeration effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of an air conditioner provided in an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 100-heat collecting pipeline;

[0034] 200-double-layer heat exchange structure; 210-heat exchange layer one; 220-heat exchange layer two;

[0035] 300-gas-liquid separator;

[0036] 410-vacuum pump; 420-circulation pump;

[0037] 500-gas-using equipment;

[0038] 600-Automatic pressure regulating valve;

[0039] 710- one-way valve; 720- three-way valve; 730- first stop valve; 740- second stop valve;

[0040] 800 - filter;

[0041] 910-condenser; 920-evaporator. DETAILED DESCRIPTION

[0042] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0044] See also Figure 1The steam generating device based on the refrigeration system provided in this embodiment includes a heat collecting pipeline 100, a double-layer heat exchange structure 200, a gas-liquid separator 300 and a vacuum pump 410; the heat collecting pipeline 100 is arranged in the condenser 910 of the refrigeration system, and the double-layer heat exchange structure 200 has a heat exchange layer 1 210 and a heat exchange layer 220, and the heat exchange layer 220 is a closed structure and is placed in the heat exchange layer 1 210; the inlet end of the heat collecting pipeline 100 is connected to the heat exchange layer 1 210 through the circulation pump 420, and the outlet end of the heat collecting pipeline 100 is connected to the heat exchange layer 1 210 and the heat exchange layer 2 220 through two branches respectively; the inlet end of the gas-liquid separator 300 is connected to the heat exchange layer 2 220, and the gas outlet end of the gas-liquid separator 300 is connected to the gas-generating equipment 500 through the vacuum pump 410.

[0045] During the refrigeration process, the condenser 910 of the refrigeration system will release heat, and the liquid flowing through the heat collection pipeline 100 can absorb the heat released by the condenser 910. Under the action of the circulating pump 420, the high-temperature liquid carrying heat in the heat collection pipeline 100 can be divided into two paths through two branches and pumped to the heat exchange layer 1 210 and the heat exchange layer 2 220 of the double-layer heat exchange structure 200 respectively, and circulate back and forth, so that the heat released by the condenser 910 is continuously transferred to the double-layer heat exchange structure 200. Under the action of the vacuum pump 410, the sealed heat exchange layer 2 220 will be evacuated to reduce the internal pressure and form a negative pressure, so that the boiling point of the liquid in the heat exchange layer 2 220 will be reduced, which is conducive to the liquid in the heat exchange layer 2 220 evaporating at a lower temperature to form steam; because the heat exchange layer 1 210 is not evacuated, the liquid in the heat exchange layer 2 220 can absorb the heat of the liquid in the heat exchange layer 1 210, so that the liquid in the heat exchange layer 2 220 can absorb heat and evaporate to generate steam. Under the action of the vacuum pump 410, the steam generated in the heat exchange layer 2 220 can be sucked into the gas-liquid separator 300, and after the gas-liquid separation by the gas-liquid separator 300, the drier steam is output from the gas outlet of the gas-liquid separator 300 and pumped to the gas-using equipment 500 for use by the gas-using equipment 500. In this way, the waste heat conversion of the condenser 910 is realized, the heat waste of the refrigeration system is reduced, and the pollution to the environment is reduced.

[0046] In addition, using the heat collection pipeline 100 to collect the heat released by the condenser 910 is beneficial to lowering the temperature of the condenser 910 and improving the heat dissipation efficiency of the condenser 910, thereby optimizing the refrigeration effect of the refrigeration system.

[0047] The gas-consuming equipment 500 may be a turbine generator.

[0048] Preferably, the heat exchange layer 220 can be immersed in the liquid in the heat exchange layer 1 210 to improve the temperature balance of each part of the heat exchange layer 220, which is beneficial to increase the amount of steam transported from the heat exchange layer 220 to the gas-liquid separator 300 and improve the waste heat conversion efficiency.

[0049] The steam is cooled down and restored to liquid state after being used by the gas-using device 500. The vacuum pump 410 is connected to the heat exchange layer 210 through the gas-using device 500, so that the restored liquid can flow back into the heat exchange layer 210, thereby realizing the recycling of the liquid and reducing waste.

[0050] The discharge end of the gas-liquid separator 300 is connected to the heat exchange layer 210, so that the liquid separated by the gas-liquid separator 300 flows back into the heat exchange layer 210 through the discharge end, which also realizes the recycling of the liquid and further reduces waste.

[0051] A liquid replenishing port can be set between the gas-consuming equipment 500 and the heat exchange layer 210. When the amount of liquid in the heat exchange layer 210 is insufficient due to factors such as steam loss, liquid can be replenished through the liquid replenishing port to ensure the amount of liquid in the heat exchange layer 210 and prevent the waste heat conversion efficiency from being affected by insufficient liquid.

[0052] A regulating valve may be provided at the liquid replenishing port, and when liquid needs to be replenished, the regulating valve may be opened to allow liquid to be replenished through the regulating valve.

[0053] The regulating valve can be set as an automatic pressure regulating valve 600, a pressure sensor is installed in the heat exchange layer 210, and the pressure sensor is connected to the automatic pressure regulating valve 600 for communication. The pressure sensor can sense the water pressure in the heat exchange layer 210 in real time. When a drop in water pressure is detected, it indicates that the liquid level in the heat exchange layer 210 has dropped and the amount of liquid has decreased. At this time, the automatic pressure regulating valve 600 can open automatically according to the signal of the water pressure drop sensed by the pressure sensor, thereby realizing automatic water replenishment and more timely water replenishment.

[0054] Preferably, a one-way valve 710 may be connected between the vacuum pump 410 and the gas-consuming equipment 500. The setting of the one-way valve 710 may ensure the flow direction of the steam and prevent the steam from flowing back.

[0055] A three-way valve 720 can be set between the heat collection pipeline 100 and the above-mentioned branches, and the inlet end of the three-way valve 720 is connected to the heat collection pipeline 100, and the two outlet ends of the three-way valve 720 are respectively connected to the two branches. In this way, the liquid flow diverted from the heat collection pipeline 100 into the heat exchange layer 1 210 and the heat exchange layer 2 220 can be adjusted by the three-way valve 720 to better meet actual needs.

[0056] A first stop valve 730 can be connected between the inlet end of the heat collection pipeline 100 and the heat exchange layer 1 210, and a second stop valve 740 can be connected between the outlet end of the heat collection pipeline 100 and the branch, so that the first stop valve 730 and the second stop valve 740 can be used to cut off or conduct the passage between the heat collection pipeline 100 and the double-layer heat exchange structure 200 to start or stop the heat exchange.

[0057] A filter 800 may be connected between the gas-consuming equipment 500 and the heat exchange layer 210 , so as to utilize the filter 800 to filter the liquid before it enters the heat exchange layer 210 , thereby ensuring the cleanliness of the liquid in the heat exchange layer 210 .

[0058] As an implementation method, the heat exchange layer 1 210 can be set as a water tank, and the heat exchange layer 220 can be set as a closed heat exchanger, and the closed heat exchanger can be set in the water tank. In this way, the requirements of the double-layer heat exchange structure 200 for heat exchange function can be met.

[0059] As another possible implementation method, a shell and tube heat exchanger can be used as the above-mentioned double-layer heat exchange structure 200, the shell of the shell and tube heat exchanger is used as the heat exchange layer one 210, and the heat transfer tube bundle of the shell and tube heat exchanger is used as the heat exchange layer two 220. In this way, the requirements of the double-layer heat exchange structure 200 for heat exchange function can also be met.

[0060] See also Figure 1 This embodiment also provides an air conditioner, which includes an evaporator 920, a condenser 910 and the above-mentioned steam generating device based on the refrigeration system, the evaporator 920 is connected to the condenser 910, and the heat collection pipeline 100 is arranged in the condenser 910.

[0061] The air conditioner provided in this embodiment has all the advantages of the steam generating device based on the refrigeration system mentioned above, and can realize the waste heat conversion of the condenser 910, thereby reducing the heat waste of the air conditioner and reducing the pollution to the environment; in addition, the refrigeration effect is better.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A steam generating device based on a refrigeration system, characterized in that: It comprises a heat collection pipeline (100), a double-layer heat exchange structure (200), a gas-liquid separator (300) and a vacuum pump (410); The heat collection pipeline (100) is arranged in the condenser (910) of the refrigeration system, the double-layer heat exchange structure (200) comprises a heat exchange layer 1 (210) and a heat exchange layer 2 (220), the heat exchange layer 2 (220) is a closed structure and is arranged in the heat exchange layer 1 (210); The inlet end of the heat collection pipeline (100) is connected to the heat exchange layer one (210) through a circulation pump (420), and the outlet end of the heat collection pipeline (100) is connected to the heat exchange layer one (210) and the heat exchange layer two (220) through two branches respectively; the inlet end of the gas-liquid separator (300) is connected to the heat exchange layer two (220), and the gas outlet end of the gas-liquid separator (300) is connected to the gas-generating equipment (500) through the vacuum pump (410).

2. The steam generating device based on the refrigeration system according to claim 1, characterized in that: The heat exchange layer 2 (220) is immersed in the liquid in the heat exchange layer 1 (210).

3. The steam generating device based on the refrigeration system according to claim 1, characterized in that: The vacuum pump (410) is connected to the heat exchange layer one (210) via the gas-using equipment (500), and the liquid discharge end of the gas-liquid separator (300) is connected to the heat exchange layer one (210).

4. The steam generating device based on the refrigeration system according to claim 3, characterized in that: A liquid replenishing port is provided between the gas-using equipment (500) and the heat exchange layer one (210).

5. The steam generating device based on the refrigeration system according to claim 4, characterized in that: An automatic pressure regulating valve (600) is provided at the liquid replenishing port, and a pressure sensor is installed in the heat exchange layer 1 (210), and the pressure sensor is communicatively connected with the automatic pressure regulating valve (600).

6. The steam generating device based on a refrigeration system according to claim 1, characterized in that: A one-way valve (710) is connected between the vacuum pump (410) and the gas-using equipment (500).

7. The steam generating device based on a refrigeration system according to claim 1, characterized in that: A three-way valve (720) is provided between the heat collection pipeline (100) and the branch, the inlet end of the three-way valve (720) is connected to the heat collection pipeline (100), and the two outlet ends of the three-way valve (720) are respectively connected to the two branches; And / or, a first stop valve (730) is connected between the inlet end of the heat collection pipeline (100) and the heat exchange layer 1 (210), and a second stop valve (740) is connected between the outlet end of the heat collection pipeline (100) and the branch.

8. The steam generating device based on a refrigeration system according to claim 1, characterized in that: A filter (800) is connected between the gas-using equipment (500) and the heat exchange layer 1 (210), and the filter (800) is used to filter impurities in the liquid.

9. The steam generating device based on a refrigeration system according to any one of claims 1 to 8, characterized in that: The heat exchange layer 1 (210) is a water tank, and the heat exchange layer 2 (220) is a closed heat exchanger, and the closed heat exchanger is arranged in the water tank; Alternatively, the double-layer heat exchange structure is a shell and tube heat exchanger, the shell of the shell and tube heat exchanger is the heat exchange layer one (210), and the heat transfer tube bundle of the shell and tube heat exchanger is the heat exchange layer two (220).

10. An air conditioner, characterized in that: It comprises an evaporator (920), a condenser (910) and a steam generating device based on a refrigeration system as described in any one of claims 1 to 9, wherein the evaporator (920) is connected to the condenser (910), and the heat collection pipeline (100) is arranged in the condenser (910).

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