CN214065129U - Air-cooled single-cooling natural cooling all-year cooling system - Google Patents
Air-cooled single-cooling natural cooling all-year cooling system Download PDFInfo
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- CN214065129U CN214065129U CN202023198298.1U CN202023198298U CN214065129U CN 214065129 U CN214065129 U CN 214065129U CN 202023198298 U CN202023198298 U CN 202023198298U CN 214065129 U CN214065129 U CN 214065129U
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Abstract
The utility model discloses an air-cooled single-cooling natural cooling annual cooling system, which comprises a compressor, a first heat exchanger, an electronic expansion valve, a second heat exchanger and a gas-liquid separator, wherein the compressor, the first heat exchanger and the first heat exchanger are sequentially communicated in a circulating way, the first heat exchanger exchanges heat with ambient air, the second heat exchanger exchanges heat with water used at a user side, and a refrigerating circulation loop for refrigeration is formed; the system also comprises a first pipeline communicated with the water inlet of the user side, a third heat exchanger for exchanging heat with ambient air, a second pipeline, a water tank, a third pipeline, a first valve and a second valve; first pipeline, the third heat exchanger, second pipeline and water tank communicate in proper order, the second heat exchanger, third pipeline and water tank communicate in proper order, first valve setting just is used for controlling the switching of first pipeline on first pipeline, the second valve setting just is used for controlling the switching of third pipeline on the third pipeline, the adverse effect that the condensing pressure of condenser constantly reduces and causes when ambient temperature crosses lowly has been overcome to this system, the life of compressor has been prolonged, use cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the warm logical air conditioner, concretely relates to forced air cooling single cooling nature is cold cooling system all the year round.
Background
The user use side of the existing air-cooled single-cooling unit is a shell-and-tube heat exchanger, and the source side is an air-cooled finned heat exchanger. The environment range of the common air-cooled heat pump unit for refrigeration is 21-43 ℃ according to the national standard GB/T18430.1-2007. Some buildings or industrial plants require refrigeration to produce cooling water at ambient temperatures below 21 c. When the temperature of the environment is too low, the condensing pressure of a condenser (a heat exchanger) is continuously reduced during refrigeration, the high-low pressure difference of the whole machine cannot be established, the circulation volume of a refrigerant is reduced, the exhaust temperature of a compressor is continuously increased, the service life of the running part compressor is reduced after the compressor runs for a long time, and even the unit cannot be started normally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a cold annual cooling system of modified forced air cooling single cooling nature, this system has overcome ambient temperature and has crossed when low excessively, and the adverse effect that the condensing pressure of condenser constantly reduced and caused has prolonged the life of compressor, has practiced thrift use cost for the user.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an air-cooled single-cooling natural cooling annual cooling system comprises a compressor, a first heat exchanger for exchanging heat with ambient air, an electronic expansion valve, a second heat exchanger for exchanging heat with water used at a user side, and a gas-liquid separator; the compressor, the first heat exchanger, the electronic expansion valve, the second heat exchanger and the gas-liquid separator are sequentially communicated in a circulating manner to form a refrigeration circulating loop for refrigeration;
the system also comprises a first pipeline communicated with the water inlet of the user side, a third heat exchanger for exchanging heat with ambient air, a second pipeline, a water tank for loading cooling water, a third pipeline, a first valve and a second valve; the first pipeline, the third heat exchanger, the second pipeline and the water tank are communicated in sequence, the second heat exchanger, the third pipeline and the water tank are communicated in sequence, the first valve is arranged on the first pipeline and used for controlling the first pipeline to be opened and closed, and the second valve is arranged on the third pipeline and used for controlling the third pipeline to be opened and closed.
According to some preferred aspects of the present invention, the compressor is a scroll compressor.
According to some preferred aspects of the utility model, first heat exchanger includes fin type heat exchanger, axial fan, the third heat exchanger is the cold heat exchanger of table, axial fan is located the fin type heat exchanger with the homonymy of the cold heat exchanger of table just is used for respectively to the fin type heat exchanger the cold heat exchanger of table blows the ambient air.
According to some preferred aspects of the invention, the second heat exchanger is a plate heat exchanger.
According to some preferred aspects of the present invention, the first valve and the second valve are water solenoid valves, respectively.
According to some preferred aspects of the utility model, the refrigerant that refrigeration cycle return circuit adopted is freon.
According to some preferred aspects of the invention, the system comprises a water pump, the water pump with the outlet of the water tank communicates and is used for extracting cooling water in the water tank.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses based on some buildings or industrial equipment among the prior art still need refrigerate and prepare cooling water even when ambient temperature is less than 21 ℃, but to current cooling system, when ambient temperature is too low, the condensing pressure of condenser (heat exchanger) constantly reduces during refrigeration, the complete machine difference in height and low pressure is built up, refrigerant circulation volume reduces, the exhaust temperature of compressor constantly rises, long-time running still can lead to the running part compressor life to reduce, even the unit can't normally start; the utility model discloses creatively add parts such as a heat exchanger, water tank and valve on original heat exchanger (condenser) basis, the switching through the pipeline realizes that unit partial equipment stops using when ambient temperature is lower, and then realizes the cooling of using water through ambient temperature to store, guaranteed terminal customer's normal refrigeration and use, utilize the energy-concerving and environment-protective of the temperature difference of nature, reduce the use cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an air-cooled single-cooling natural cooling annual cooling system according to an embodiment of the present invention;
wherein, 1, a scroll compressor; 2. a finned heat exchanger; 3. an axial flow fan; 4. an electronic expansion valve; 5. a plate heat exchanger; 6. a gas-liquid separator; 7. a first waterway solenoid valve; 8. a second waterway solenoid valve; 9. a surface-cooled heat exchanger; 10. a water tank; 11. a water pump; 12. a first pipeline; 13. a second pipeline; 14. a third pipeline.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, this example provides an air-cooled single-cooling natural cooling annual cooling system, which includes a compressor, a first heat exchanger for exchanging heat with ambient air, an electronic expansion valve, a second heat exchanger for exchanging heat with water used at a user side, and a gas-liquid separator; the compressor, the first heat exchanger, the electronic expansion valve, the second heat exchanger and the gas-liquid separator are sequentially communicated in a circulating manner to form a refrigeration circulating loop for refrigeration;
the system also comprises a first pipeline communicated with the water inlet of the user side, a third heat exchanger for exchanging heat with ambient air, a second pipeline, a water tank for loading cooling water, a third pipeline, a first valve and a second valve; the first pipeline, the third heat exchanger, the second pipeline and the water tank are communicated in sequence, the second heat exchanger, the third pipeline and the water tank are communicated in sequence, the first valve is arranged on the first pipeline and used for controlling the first pipeline to be opened and closed, and the second valve is arranged on the third pipeline and used for controlling the third pipeline to be opened and closed.
In this example, the compressor is a scroll compressor.
In this example, the first heat exchanger includes a fin heat exchanger and an axial fan, the third heat exchanger is a surface cooling heat exchanger, and the axial fan is located on the same side of the fin heat exchanger and the surface cooling heat exchanger and is used for blowing ambient air to the fin heat exchanger and the surface cooling heat exchanger respectively.
In this example, the second heat exchanger is a plate heat exchanger.
In this example, the first valve and the second valve are water passage solenoid valves, respectively.
In this example, the refrigerant used in the refrigeration cycle is freon.
In this example, the system includes a water pump in communication with the outlet of the water tank for pumping cooling water from the water tank.
Specifically, in this example, the scroll compressor 1, the finned heat exchanger 2, the electronic expansion valve 4, the plate heat exchanger 2, and the gas-liquid separator are sequentially communicated in a circulating manner to form a refrigeration cycle loop for refrigeration;
the first pipeline 12, the surface cooling heat exchanger 9, the second pipeline 13 and the water tank 10 are sequentially communicated, the plate heat exchanger 5, the third pipeline 14 and the water tank 10 are sequentially communicated, the first water path electromagnetic valve 7 is arranged on the first pipeline 12 and used for controlling the first pipeline 12 to be opened and closed, and the second water path electromagnetic valve 8 is arranged on the third pipeline 14 and used for controlling the third pipeline 14 to be opened and closed.
In this example, when the ambient temperature is > 21 ℃ for refrigeration: low-pressure gaseous freon (refrigerant) is sucked into the scroll compressor 1 and compressed into high-temperature high-pressure gaseous freon (refrigerant). High-temperature high-pressure gas freon (refrigerant) flows outdoor finned heat exchanger 2 and passes through axial fan 3 to outdoor heat dissipation, the condensation becomes high-pressure liquid freon (refrigerant) gradually, and then flow through electronic expansion valve 4 throttle step-down (also cool down simultaneously), become low temperature low pressure gas liquid freon (refrigerant) mixture again, gas-liquid mixture's freon (refrigerant) gets into plate heat exchanger 5, freon (refrigerant) use side hydrothermal volume through absorbing and constantly vaporize and become low pressure gas, use the side water temperature to reduce simultaneously. The scroll compressor 1 is operated while the first waterway solenoid valve 7 is closed and the second waterway solenoid valve 8 is opened. The cooled cooling water enters the water tank 10 and is sent to the use end through the water pump 11. The freon (refrigerant) is changed into low-pressure gas in the plate heat exchanger 5, and enters the gas-liquid separator 6, thereby returning to the scroll compressor 1.
If the outdoor environment temperature is lower than less than 21 ℃. The first waterway solenoid valve 7 is opened and the second waterway solenoid valve 8 is closed. The high-temperature water of the used side water enters the surface cooling heat exchanger 9, is gradually cooled to the outdoor heat dissipation with lower ambient temperature through the axial flow fan 3, and the cooled cooling water enters the water tank 10 and is sent to the use end through the water pump 11. At this time, the Freon (refrigerant) system is not started. Normal refrigeration use of the terminal customer can also be ensured. The temperature difference of the nature is utilized to save energy and protect environment, and the use cost is reduced.
To sum up, the utility model discloses based on some buildings or industrial equipment among the prior art still need refrigerate and prepare cooling water even when ambient temperature is less than 21 ℃, but to current cooling system, when ambient temperature is too low, the condensing pressure of condenser (heat exchanger) constantly reduces during refrigeration, and the complete machine difference of height and low pressure is established, and refrigerant circulation volume reduces, and the exhaust temperature of compressor constantly rises, and long-time operation still can lead to the running part compressor life to reduce, even the unit can't normally start; the utility model discloses creatively add parts such as a heat exchanger, water tank and valve on original heat exchanger (condenser) basis, the switching through the pipeline realizes that unit partial equipment stops using when ambient temperature is lower, and then realizes the cooling of using water through ambient temperature to store, guaranteed terminal customer's normal refrigeration and use, utilize the energy-concerving and environment-protective of the temperature difference of nature, reduce the use cost.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. An air-cooled single-cooling natural cooling annual cooling system is characterized by comprising a compressor, a first heat exchanger for exchanging heat with ambient air, an electronic expansion valve, a second heat exchanger for exchanging heat with water used at a user side, and a gas-liquid separator; the compressor, the first heat exchanger, the electronic expansion valve, the second heat exchanger and the gas-liquid separator are sequentially communicated in a circulating manner to form a refrigeration circulating loop for refrigeration;
the system also comprises a first pipeline communicated with the water inlet of the user side, a third heat exchanger for exchanging heat with ambient air, a second pipeline, a water tank for loading cooling water, a third pipeline, a first valve and a second valve; the first pipeline, the third heat exchanger, the second pipeline and the water tank are communicated in sequence, the second heat exchanger, the third pipeline and the water tank are communicated in sequence, the first valve is arranged on the first pipeline and used for controlling the first pipeline to be opened and closed, and the second valve is arranged on the third pipeline and used for controlling the third pipeline to be opened and closed.
2. The air-cooled single-cold natural cooling year round cooling system according to claim 1, wherein the compressor is a scroll compressor.
3. The air-cooled single-cooling natural cooling year round cooling system according to claim 1, wherein the first heat exchanger comprises a fin type heat exchanger and an axial flow fan, the third heat exchanger is a surface-cooled heat exchanger, and the axial flow fan is located on the same side of the fin type heat exchanger and the surface-cooled heat exchanger and used for blowing ambient air to the fin type heat exchanger and the surface-cooled heat exchanger respectively.
4. The air-cooled single-cold natural cooling year round cooling system according to claim 1, wherein the second heat exchanger is a plate heat exchanger.
5. The air-cooled single-cold natural cooling year round cooling system according to claim 1, wherein the first valve and the second valve are water solenoid valves, respectively.
6. The air-cooled single-cooling natural cooling year round cooling system according to claim 1, wherein the refrigerant used in the refrigeration cycle is freon.
7. The air-cooled single-cold natural cooling year round cooling system according to claim 1, wherein the system includes a water pump which is communicated with an outlet of the water tank and is used for pumping cooling water in the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198298.1U CN214065129U (en) | 2020-12-26 | 2020-12-26 | Air-cooled single-cooling natural cooling all-year cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198298.1U CN214065129U (en) | 2020-12-26 | 2020-12-26 | Air-cooled single-cooling natural cooling all-year cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN214065129U true CN214065129U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023198298.1U Active CN214065129U (en) | 2020-12-26 | 2020-12-26 | Air-cooled single-cooling natural cooling all-year cooling system |
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| CN (1) | CN214065129U (en) |
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