CN212109083U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
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- CN212109083U CN212109083U CN202020493915.1U CN202020493915U CN212109083U CN 212109083 U CN212109083 U CN 212109083U CN 202020493915 U CN202020493915 U CN 202020493915U CN 212109083 U CN212109083 U CN 212109083U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000005057 refrigeration Methods 0.000 claims abstract description 51
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000005507 spraying Methods 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an air conditioning system relates to air conditioning technology field to solve the big technical problem of air conditioning system energy consumption among the correlation technique. The air conditioning system comprises a compressor, a condenser, an evaporator, a natural cooling device, a first circulating pump, a second circulating pump and a controller. The compressor, condenser and evaporator are connected in series to form a compression refrigeration circuit. The inlet of the natural cooling device is communicated with the outlet of the condenser, and the outlet of the natural cooling device is communicated with the inlet of the condenser to form a natural cooling loop. The first circulating pump is connected between the natural cooling device and the condenser. The second circulating pump is connected with the compressor in parallel, and the outlet of the second circulating pump is connected with the inlet of the condenser, and the inlet of the second circulating pump is connected with the outlet of the evaporator. The controller can control the compressor, the first circulating pump and the second circulating pump to be turned on or turned off so that the air conditioning system enters a mechanical refrigeration mode, a natural refrigeration mode or a composite refrigeration mode. The utility model discloses can be used to air conditioning.
Description
Technical Field
The utility model relates to an air conditioning technology field especially relates to an air conditioning system.
Background
With the innovation and development of distributed computing architectures such as artificial intelligence, cloud computing and big data, the data machine room serving as an information infrastructure bears more and more traffic. Because the equipment in the machine room generates a large amount of heat, uninterrupted cooling is usually required all the year round.
In the related art, a mechanical compression type refrigeration mode is usually adopted to refrigerate and regulate a machine room, and the inventor finds that the mode has less utilization of natural energy and higher energy consumption.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air conditioning system for solve the great technical problem of air conditioning system energy consumption among the correlation technique.
In order to achieve the above object, an embodiment of the present invention provides an air conditioning system, which includes a compressor, a condenser, an evaporator, a natural cooling device, a first circulation pump, a second circulation pump, and a controller. The compressor, the condenser and the evaporator are connected in sequence to form a compression refrigeration loop. The natural cooling device is communicated with the condenser to form a natural cooling loop. The first circulating pump is connected between the natural cooling device and the condenser. The second circulating pump is connected with the compressor in parallel, an outlet of the second circulating pump is connected with an inlet of the condenser, and an inlet of the second circulating pump is connected with an outlet of the evaporator. The controller is electrically connected with the compressor, the first circulating pump and the second circulating pump, and the controller can control the compressor, the first circulating pump and the second circulating pump to be started or closed so that the air conditioning system enters a mechanical refrigeration mode or a natural refrigeration mode or a composite refrigeration mode.
The embodiment of the utility model provides an among the air conditioning system, because compressor, condenser and evaporimeter are connected in order, can form compression refrigeration return circuit, consequently when outdoor ambient temperature is higher, can get into mechanical refrigeration mode, adopt the compressor to provide cold volume for the computer lab. And because the inlet of the natural cooling device is communicated with the outlet of the condenser, and the outlet of the natural cooling device is communicated with the inlet of the condenser, a natural cooling loop can be formed, so that the natural cooling mode can be entered when the outdoor environment temperature is low enough, and the natural cooling device is adopted to provide cooling capacity for the machine room. In addition, when the outdoor environment temperature is not low enough, the compression refrigeration loop and the natural cooling loop can be started simultaneously to enter a composite refrigeration mode, and meanwhile, the compressor and the natural cooling device are adopted to provide cooling capacity for the machine room. In addition, because the air conditioning system also comprises a controller, and the controller is electrically connected with the compressor, the first circulating pump and the second circulating pump, the compressor, the first circulating pump and the second circulating pump can be controlled to be closed or opened by the controller, so that the air conditioning system enters a mechanical refrigeration mode or a natural refrigeration mode or a composite refrigeration mode, and the air conditioning system can provide cooling capacity for the machine room by adopting different refrigeration modes.
In the embodiment, in low-temperature seasons, natural cold sources can be fully utilized to refrigerate and adjust the machine room, the running time and the running load of the compressor are reduced, and the energy consumption of the air conditioning system can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
Fig. 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;
fig. 2 is a control schematic diagram of a controller in an air conditioning system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the utility model provides an air conditioning system. As shown in fig. 1, the air conditioning system includes a compressor 1, a condenser 2, an evaporator 3, a natural cooling device 4, a first circulation pump 5, a second circulation pump 6, and a controller. Wherein, the compressor 1, the condenser 2 and the evaporator 3 are connected in sequence to form a compression refrigeration circuit. The inlet of the natural cooling device 4 is communicated with the outlet of the condenser 2, and the outlet of the natural cooling device 4 is communicated with the inlet of the condenser 2 to form a natural cooling loop. The first circulation pump 5 is connected between the natural cooling device 4 and the condenser 2. The second circulating pump 6 is arranged in parallel with the compressor 1, an outlet of the second circulating pump 6 is connected with an inlet of the condenser 2, and an inlet of the second circulating pump 6 is connected with an outlet of the evaporator 3. The controller is electrically connected with the compressor 1, the first circulating pump 5 and the second circulating pump 6, and the controller can control the compressor 1, the first circulating pump 5 and the second circulating pump 6 to be started or closed so that the air conditioning system enters a mechanical refrigeration mode, a natural refrigeration mode or a composite refrigeration mode.
In addition, as shown in fig. 1, the air conditioning system further includes a throttle device 7, and the throttle device 7 is connected between the outlet of the condenser 2 and the inlet of the evaporator 3.
The embodiment of the utility model provides an among the air conditioning system, as shown in figure 1, because compressor 1, condenser 2 and evaporimeter 3 connect in order, can form compression refrigeration circuit to air conditioning system can open mechanical refrigeration mode and utilize compressor 1 to refrigerate. And because the inlet of the natural cooling device 4 is communicated with the outlet of the condenser 2, and the outlet of the natural cooling device 4 is communicated with the inlet of the condenser 2, a natural cooling loop can be formed, so that the air conditioning system can start a natural cooling mode and utilize the natural cooling device 4 to refrigerate. In addition, when both the compression refrigeration circuit and the natural cooling circuit are turned on, the air conditioning system may enter a hybrid refrigeration mode and perform refrigeration using the compressor 1 and the natural cooling device 4 at the same time.
When the air conditioning system is used for refrigerating and adjusting the data machine room, the specific working process is as follows:
when the outdoor environment temperature is high, the compressor 1 can be controlled to be turned on, and the first circulation pump 5 and the second circulation pump 6 can be controlled to be turned off by the controller. At this time, the low-temperature and low-pressure liquid refrigerant is thermally absorbed in the evaporator 3 and changed into a low-temperature and low-pressure gaseous refrigerant, and at the same time, heat exchange is performed with the indoor side, so that the temperature of the indoor environment can be reduced. Then, the low-temperature and low-pressure gaseous refrigerant flows into the compressor 1, is pressurized in the compressor 1 to become a high-temperature and high-pressure gaseous refrigerant, and flows into the condenser 2 under the action of the compressor 1. The high-temperature high-pressure gaseous refrigerant in the condenser 2 releases heat to be changed into a high-temperature high-pressure liquid refrigerant, and then the high-temperature high-pressure liquid refrigerant is decompressed by the throttling device 7 to be changed into a low-temperature low-pressure liquid refrigerant and flows back to the evaporator 3 to complete refrigerant circulation. In the circulation, the compressor 1 is adopted to pressurize the refrigerant, so that the refrigerant can circulate in the system, namely, the mechanical refrigeration is realized through the compressor 1, and the air conditioning system is in a mechanical refrigeration mode.
When the outdoor environment temperature is low, the outdoor natural cold source is enough, the refrigerant flowing out of the evaporator 3 can directly enter the condenser 2 to be condensed into liquid refrigerant without being pressurized by the compressor 1 and then flows into the condenser 2 to be condensed, and therefore the compressor 1 can be controlled to be turned off and the first circulating pump 5 and the second circulating pump 6 can be turned on through the controller. At this time, the working medium in the natural circulation loop exchanges heat with the outdoor environment in the natural cooling device 4, the temperature of the working medium is reduced, and the working medium flows into the condenser 2 under the driving action of the first circulation pump 5. In the condenser 2, the low-temperature working medium exchanges heat with a high-temperature refrigerant in the compression refrigeration loop to reduce the temperature of the refrigerant. After the refrigerant in the compression refrigeration loop exchanges heat with the refrigerant in the natural circulation loop in the condenser 2, the refrigerant circularly flows in the pipeline under the driving action of the second circulating pump 6, and exchanges heat with the indoor side when flowing into the evaporator 3, so that the temperature of the indoor environment is reduced. In the circulation, the first circulating pump 5 and the second circulating pump 6 are adopted to respectively drive the working medium in the natural heat exchange loop and the working medium in the compression refrigeration loop to flow, and the temperature of the indoor environment is adjusted by utilizing an outdoor natural cold source through the natural heat exchange device, the condenser 2 and the evaporator 3, so that natural refrigeration is realized, and the air conditioning system is in a natural refrigeration mode.
When outdoor ambient temperature is not low enough, because only rely on the unable refrigeration demand that satisfies of natural cold source, consequently, can open compressor 1, first circulating pump 5 and second circulating pump 6 through controller control. At this time, a part of the refrigerant in the compression refrigeration circuit flows into the condenser 2 after being pressurized by the compressor 1, and a part of the refrigerant directly flows into the condenser 2 through a bypass line where the second circulation pump 6 is located under the action of the second circulation pump 6. In the condenser 2, the refrigerant flowing out of the compressor 1 and the refrigerant flowing out of the second circulation pump 6 can exchange heat with the low-temperature working medium in the natural circulation loop, so that the temperature of the refrigerant is reduced. Then the low-temperature refrigerant flows back into the evaporator 3 to exchange heat with the indoor side, so that the temperature of the indoor environment is reduced. In the circulation, part of the refrigerant flows into the condenser 2 for condensation after being pressurized by the compressor 1, part of the refrigerant directly flows into the condenser 2 for condensation under the action of the second circulating pump 6, and the compressor 1 and a natural cold source are adopted to adjust the temperature of the indoor environment, so that the mechanical refrigeration and the natural refrigeration are realized simultaneously, and the air conditioning system is in a composite refrigeration mode.
The air conditioning system can realize the operation of three modes according to the difference of the outdoor environment temperature, can utilize a natural cold source to the maximum extent, and further can effectively reduce the energy consumption of the air conditioning system in a low-temperature season.
Further, as shown in fig. 2, the air conditioning system further includes an outdoor temperature sensor electrically connected to the controller. The controller is used for acquiring outdoor temperature information detected by the outdoor temperature sensor and controlling the compressor 1, the first circulating pump 5 and the second circulating pump 6 to be turned on or off according to the outdoor temperature information.
Wherein, the outdoor temperature sensor can transmit the outdoor temperature information to the controller in the form of electric signals.
The embodiment of the utility model provides an among the air conditioning system, the controller can be according to the outdoor temperature information of receipt, and compressor 1, first circulating pump 5 and second circulating pump 6 are opened or closed in the control for air conditioning system moves under the mode of difference. Specifically, when the outdoor temperature T is more than T1When the air conditioner system is in the mechanical refrigeration mode, the controller controls the compressor 1 to be started, and the first circulating pump 5 and the second circulating pump 6 to be closed, so that the air conditioner system enters the mechanical refrigeration mode; when the outdoor temperature T is less than T2When the air conditioner is in the natural cooling mode, the controller controls the compressor 1 to be closed, and the first circulating pump 5 and the second circulating pump 6 to be opened, so that the air conditioner system enters the natural cooling mode; when the outdoor temperature t2＜T＜t1(t2＜t1) And when the air conditioner system is in the compound refrigeration mode, the controller controls the compressor 1, the first circulating pump 5 and the second circulating pump 6 to be started, so that the air conditioner system enters the compound refrigeration mode.
It should be noted that, when the air conditioning system is in the composite refrigeration mode, if the natural cooling device 4 and the first circulating pump 5 are at the maximum operating frequency and cannot meet the refrigeration requirement, the compressor 1 may be controlled by the controller to be turned on, so that the air conditioning system enters the mechanical refrigeration mode. In addition, according to the actual refrigeration requirement of the machine room, in different embodiments, t1And t2The value of (A) is different and is not limited herein.
Further, in some embodiments, the air conditioning system further comprises an indoor temperature sensor electrically connected to the controller. The controller is used for acquiring indoor temperature information detected by the indoor temperature sensor and adjusting the operating frequency of the compressor 1, the first circulating pump 5 and the second circulating pump 6 according to the indoor temperature information. Specifically, when the difference between the indoor ambient temperature and the preset temperature is large, the operating frequency of at least one of the first circulating pump 5 and the second circulating pump 6 of the compressor 1 can be controlled to be increased. In the above embodiment, the controller receives the indoor temperature information, and adjusts the operating frequencies of the compressor 1, the first circulating pump 5, and the second circulating pump 6 according to actual conditions by using the indoor temperature information as a feedback adjustment signal, so as to ensure that the temperature of the indoor environment can be maintained within a reasonable range.
The embodiment of the utility model provides an among the air conditioning system, natural cooling device 4's type is not only.
As an example, the natural cooling device 4 may be a cooling tower 41. The cooling tower 41 has high heat exchange efficiency, can effectively reduce energy loss, and meanwhile, the refrigeration working medium can be recycled, so that the maintenance cost is low. Alternatively, the natural cooling device 4 may be a dry cooler.
Further, when the natural cooling device 4 is a cooling tower 41, in order to enhance the heat exchange effect of the cooling tower 41, a heat exchange coil, a water spraying filler and a water distributor device may be disposed in the tower body of the cooling tower 41. Wherein, the import of heat transfer coil is linked together with the export of condenser 2, and the export of heat transfer coil is linked together with the import of condenser 2. The water spraying filler is arranged around the heat exchange coil. The water distributor device comprises a water pipe and a spray head arranged on the water pipe, and is arranged above the water spraying filler and used for spraying water to the water spraying filler. The cooling tower 41 of the above structure can spray water to the water spraying filler when the water distributor device is opened so as to soak the water spraying filler, and the air is subjected to primary heat exchange with the water spraying filler when passing through the water spraying filler to become low-temperature air, and then is subjected to secondary heat exchange with working media in the heat exchange coil, so that the heat exchange effect can be effectively enhanced, and the cooling capacity of the cooling tower 41 is improved. Meanwhile, the water spraying filler is arranged around the heat exchange coil, so that the heat exchange coil is in a humid environment, dry spots of the heat exchange coil are avoided, the heat exchange effect of the heat exchange coil is guaranteed, and the service life of the heat exchange coil can be prolonged.
Furthermore, in order to collect the cooling water conveniently, in the above embodiment, a water collecting tank is further provided below the water spraying filler, and the spraying water flowing out of the water spraying filler can flow into the water collecting tank. In addition, the water flowing into the water collecting tank may be discharged to the outside of the cooling tower 41 through a pipe or circulated into a water pipe of the water distributor device for recycling, which is not particularly limited herein.
Furthermore, in order to prevent the water collecting tank from accumulating sludge and influencing the use of the water collecting tank after being used for a long time, a drain pipe can be further arranged on the water collecting tank, and impurities entering the water collecting tank are discharged through the drain pipe.
To enhance the heat exchange effect of the cooling tower 41, the cooling tower 41 may be further configured with a first heat dissipation fan electrically connected to the controller. The controller can control the first cooling fan to be turned on or turned off. When utilizing cooling tower 41 to carry out the heat transfer, when the temperature that detects indoor environment is great with the temperature deviation of predetermineeing, open first cooling blower through controller control, can strengthen the air flow, and then reinforcing convection heat transfer's efficiency, reinforcing cooling tower 41's cooling effect.
To enhance the heat radiation effect of the condenser 2, the condenser 2 may be provided with a second heat radiation fan electrically connected to the controller, as an example. The controller can control the second cooling fan to be turned on or off. Specifically, when the indoor temperature sensor detects that the temperature of the outdoor environment is higher or the outdoor temperature sensor detects that the deviation of the temperature of the indoor environment from the preset value is larger, the second cooling fan can be controlled to be started through the controller. When the second cooling fan is started, the air circulation can be enhanced, and then the cooling effect of the condenser 2 can be effectively improved, so that the cooling efficiency of the air conditioning system is improved.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of protection of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An air conditioning system is characterized by comprising a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are sequentially connected to form a compression refrigeration loop; the air conditioning system further includes:
the inlet of the natural cooling device is communicated with the outlet of the condenser, and the outlet of the natural cooling device is communicated with the inlet of the condenser to form a natural cooling loop;
the first circulating pump is connected between the natural cooling device and the condenser;
the second circulating pump is connected with the compressor in parallel, an outlet of the second circulating pump is connected with an inlet of the condenser, and an inlet of the second circulating pump is connected with an outlet of the evaporator;
the controller is electrically connected with the compressor, the first circulating pump and the second circulating pump, and the controller can control the compressor, the first circulating pump and the second circulating pump to be started or closed so that the air conditioning system enters a mechanical refrigeration mode, a natural refrigeration mode or a composite refrigeration mode.
2. The air conditioning system of claim 1, further comprising an outdoor temperature sensor electrically connected to a controller, wherein the controller is configured to obtain outdoor temperature information detected by the outdoor temperature sensor and control the compressor, the first circulation pump, and the second circulation pump to be turned on or off according to the outdoor temperature information.
3. The air conditioning system of claim 1, further comprising an indoor temperature sensor electrically connected to the controller, wherein the controller is configured to obtain information on an indoor temperature detected by the indoor temperature sensor and adjust the operating frequencies of the compressor, the first circulation pump, and the second circulation pump according to the information on the indoor temperature.
4. The air conditioning system of claim 1, wherein the free cooling device is a cooling tower.
5. The air conditioning system of claim 4, wherein the cooling tower body is provided with:
an inlet of the heat exchange coil is communicated with an outlet of the condenser, and an outlet of the heat exchange coil is communicated with an inlet of the condenser;
the water spraying filler is arranged around the heat exchange coil;
the water distributor device comprises a water pipe and a spray head arranged on the water pipe, and is arranged above the water spraying filler and used for spraying water to the water spraying filler.
6. The air conditioning system of claim 4, wherein the cooling tower is configured with a first heat rejection fan electrically connected to the controller.
7. The air conditioning system of claim 1, wherein the condenser is configured with a second heat rejection fan electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020493915.1U CN212109083U (en) | 2020-04-07 | 2020-04-07 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020493915.1U CN212109083U (en) | 2020-04-07 | 2020-04-07 | Air conditioning system |
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| CN212109083U true CN212109083U (en) | 2020-12-08 |
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| CN202020493915.1U Active CN212109083U (en) | 2020-04-07 | 2020-04-07 | Air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539581A (en) * | 2020-12-14 | 2021-03-23 | 珠海格力电器股份有限公司 | Air conditioning unit, refrigeration equipment and control method of air conditioning unit |
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2020
- 2020-04-07 CN CN202020493915.1U patent/CN212109083U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539581A (en) * | 2020-12-14 | 2021-03-23 | 珠海格力电器股份有限公司 | Air conditioning unit, refrigeration equipment and control method of air conditioning unit |
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