CN101266081A - Air Cooling System Using Carbon Dioxide as Brine - Google Patents
Air Cooling System Using Carbon Dioxide as Brine Download PDFInfo
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- CN101266081A CN101266081A CNA2008100529024A CN200810052902A CN101266081A CN 101266081 A CN101266081 A CN 101266081A CN A2008100529024 A CNA2008100529024 A CN A2008100529024A CN 200810052902 A CN200810052902 A CN 200810052902A CN 101266081 A CN101266081 A CN 101266081A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000012267 brine Substances 0.000 title claims abstract description 37
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 37
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 30
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000005057 refrigeration Methods 0.000 claims description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Abstract
本发明公开了一种使用二氧化碳作为载冷剂的空气冷却***，旨在提供一种使用二氧化碳为载冷剂，安全性高的空气冷却***。载冷循环***包括贮压器、储液器、液泵、空气冷却器和风机，贮压器包括外壳，外壳内有内管道，内管道上有压力平衡阀，内管道一端与蒸发式冷凝器的载冷剂出口连接，另一端与储液器的载冷剂进口连接，储液器的载冷剂出口与液泵的载冷剂进口连接，液泵的载冷剂出口与空气冷却器的载冷剂进口连接，空气冷却器的载冷剂出口与蒸发式冷凝器的载冷剂进口连接。储液器和贮压器外壳上分别有安全阀。本发明的冷却***具有安全控制***，当出现停电等突发事故时，能根据载冷循环***的压力不同，开启不同的安全***，保障***安全。
The invention discloses an air cooling system using carbon dioxide as a refrigerant, and aims to provide an air cooling system using carbon dioxide as a refrigerant with high safety. The load-cooling cycle system includes a pressure accumulator, a liquid accumulator, a liquid pump, an air cooler and a fan. The accumulator includes an outer casing, and there is an inner pipe inside the outer casing. There is a pressure balance valve on the inner pipe, and one end of the inner pipe is connected to the evaporative condenser. The other end is connected to the brine outlet of the liquid receiver, the brine outlet of the liquid receiver is connected to the brine inlet of the liquid pump, the brine outlet of the liquid pump is connected to the brine of the air cooler The brine inlet is connected, and the brine outlet of the air cooler is connected with the brine inlet of the evaporative condenser. There are safety valves on the liquid reservoir and the pressure reservoir respectively. The cooling system of the present invention has a safety control system, and when sudden accidents such as power outages occur, different safety systems can be activated according to the pressure of the load-cooling circulation system to ensure system safety.
Description
技术领域 technical field
本发明涉及一种冷却***，更具体的说，是涉及一种采用二氧化碳作为载冷剂的空气冷却***。The invention relates to a cooling system, in particular to an air cooling system using carbon dioxide as a refrigerant.
背景技术 Background technique
当今，为了预防新的合成制冷剂可能产生的未来环境问题，制冷机工质更替的一个重要趋势是尽量考虑使用天然制冷剂。但是，天然制冷剂中的氨和碳氢化合物类很难进入商业制冷领域，主要是由于氨的气味、毒性、可燃性和碳氢的可燃性，成为直接蒸发冷却的不安全因素。为了解决这一矛盾，用载冷剂循环间接冷却。载冷剂是被用来将制冷装置所产生的冷量传递给被冷却物体的媒介物质，当被冷却对象离蒸发器较远，或者在用冷场所不便于安装蒸发器时，必须使用载冷剂传递冷量。理想的载冷剂必须满足：冰点低、在使用的范围内不凝固、不气化、比热大、无毒、化学稳定性好、密度小、粘度小、导热系数大、价格低廉、容易取得等优点。Today, in order to prevent future environmental problems that may be caused by new synthetic refrigerants, an important trend in the replacement of refrigerants in refrigerators is to consider using natural refrigerants as much as possible. However, ammonia and hydrocarbons in natural refrigerants are difficult to enter the field of commercial refrigeration, mainly because of the odor, toxicity, flammability of ammonia and the flammability of hydrocarbons, which become unsafe factors for direct evaporative cooling. In order to solve this contradiction, the brine is used for indirect cooling. The secondary refrigerant is used to transfer the cold generated by the refrigeration device to the medium substance to be cooled. When the object to be cooled is far away from the evaporator, or it is not convenient to install the evaporator in a cold place, the secondary refrigerant must be used. agent transfers cooling. The ideal refrigerant must meet the following requirements: low freezing point, non-condensing, non-gasification within the range of use, high specific heat, non-toxic, good chemical stability, low density, low viscosity, high thermal conductivity, low price, easy to obtain Etc.
目前，传统的载冷剂主要有空气、水、盐水溶液和有机载冷剂。空气的比热较小，主要应用于空气直接冷却过程。水的比热较大，但它的冰点温度高，仅能用作传递0℃以上冷量的载冷剂。盐水溶液的载冷性能与溶液中的含盐量有关，含盐量(浓度)越高，盐水溶液的载冷温度也就越低，但是随含盐量的浓度的增加，溶液的粘度系数不断增大，增加了载冷循环过程中的压力损失，另外，盐水溶液对金属有强烈的腐蚀性，工作过程中会吸收空气中的水分而使溶液浓度降低，因此必须定期的加盐，从而增加了运行管理的困难。有机载冷剂可以得到比较低的载冷温度，但价格较昂贵，成本较高，易燃，也不容易取得，部分有机载冷剂的ODP或GWP较高，对环境有破坏作用。At present, the traditional secondary refrigerants mainly include air, water, brine solution and organic secondary refrigerants. The specific heat of air is small, and it is mainly used in the direct cooling process of air. Water has a large specific heat, but its freezing point is high, so it can only be used as a refrigerant for transferring cold above 0°C. The cooling performance of the brine solution is related to the salt content in the solution. The higher the salt content (concentration), the lower the cooling temperature of the brine solution. However, with the increase of the concentration of the salt content, the viscosity coefficient of the solution continues increase, which increases the pressure loss during the load-cooling cycle. In addition, the brine solution is strongly corrosive to metals. During the work process, it will absorb moisture in the air and reduce the solution concentration. Therefore, it is necessary to add salt regularly to increase Difficulties in operation and management. Organic refrigerants can obtain a relatively low cooling temperature, but they are more expensive, costly, flammable, and not easy to obtain. Some organic refrigerants have high ODP or GWP, which is harmful to the environment.
随着技术的不断进步，CO2由于其无毒，密度小，溶液取得，既不可燃，也不助燃，作为碳的最高氧化状态，具有非常稳定的化学性质，粘度小，比热大等特点逐渐成为载冷剂的发展方向。但使用CO2的冷却***工作压力高，三相点压力为5.18MPa，临界压力为7.37Mpa，容易发生事故，对***的安全性要求高，使得现有的使用二氧化碳作为载冷剂的***大多结构复杂，体积大，控制繁琐。With the continuous advancement of technology, CO2 is neither flammable nor combustion-supporting due to its non-toxicity, low density, and solution. As the highest oxidation state of carbon, it has very stable chemical properties, low viscosity, and large specific heat. Gradually become the development direction of the refrigerant. However, the working pressure of the cooling system using CO2 is high, the triple point pressure is 5.18MPa, and the critical pressure is 7.37Mpa, which is prone to accidents and has high requirements for system safety. Most of the existing systems using carbon dioxide as a refrigerant The structure is complex, the volume is large, and the control is cumbersome.
发明内容 Contents of the invention
本发明是为了克服现有技术中的不足之处，提供一种使用二氧化碳作为载冷剂，结构简单，安全性高的空气冷却***。The purpose of the present invention is to overcome the deficiencies in the prior art and provide an air cooling system with simple structure and high safety using carbon dioxide as a refrigerant.
本发明通过下述技术方案实现：The present invention realizes through following technical scheme:
一种使用二氧化碳作为载冷剂的空气冷却***，由制冷循环***和载冷循环***组成，其特征在于，所述载冷循环***包括贮压器、储液器、液泵、空气冷却器和风机，所述贮压器包括外壳，所述外壳内设置有内管道，所述内管道上连接有压力平衡阀，所述内管道一端与所述制冷循环***中的蒸发式冷凝器的载冷剂出口连接，所述内管道的另一端与储液器的载冷剂进口连接，所述储液器的载冷剂出口与液泵的载冷剂进口连接，所述液泵的载冷剂出口与空气冷却器的载冷剂进口连接，所述空气冷却器的载冷剂出口与蒸发式冷凝器的载冷剂进口连接，在空气冷却器上部设置有风机，所述储液器和贮压器外壳上分别连接有安全阀，在液泵和空气冷却器之间的管道上连接有流量控制阀。其中载冷循环***中的载冷剂为二氧化碳。An air cooling system using carbon dioxide as a refrigerant, which consists of a refrigeration cycle system and a cooling cycle system, characterized in that the cooling cycle system includes a pressure accumulator, a liquid reservoir, a liquid pump, an air cooler and fan, the pressure accumulator includes a shell, and an inner pipe is arranged in the outer shell, and a pressure balance valve is connected to the inner pipe, and one end of the inner pipe is connected to the cooling load of the evaporative condenser in the refrigeration cycle system. The other end of the inner pipe is connected to the brine inlet of the liquid storage, the brine outlet of the liquid storage is connected to the brine inlet of the liquid pump, and the brine of the liquid pump The outlet is connected to the brine inlet of the air cooler, the brine outlet of the air cooler is connected to the brine inlet of the evaporative condenser, a fan is arranged on the upper part of the air cooler, and the liquid receiver and storage A safety valve is respectively connected to the shell of the compressor, and a flow control valve is connected to the pipeline between the liquid pump and the air cooler. Wherein the secondary refrigerant in the secondary cooling cycle system is carbon dioxide.
制冷循环***中的制冷剂为能够制取-60℃～-5℃的制冷剂，制冷剂可以为氨、碳氢化合物类、二氧化碳、共沸混合物类中的任一种。The refrigerant in the refrigeration cycle system is a refrigerant capable of producing -60°C to -5°C, and the refrigerant can be any one of ammonia, hydrocarbons, carbon dioxide, and azeotropic mixtures.
所述制冷循环***包括压缩机、冷凝器、蒸发式冷凝器，压缩机的制冷剂出口与冷凝器的制冷剂进口连接，冷凝器的制冷剂出口与蒸发式冷凝器的制冷剂进口连接，蒸发式冷凝器的制冷剂出口与压缩机的制冷剂进口连接，在冷凝器与蒸发式冷凝器之间的管道上连接有膨胀阀，所述压缩机分别与主电源和辅助电源连接，所述压缩机和辅助电源分别与自动控制器连接。The refrigeration cycle system includes a compressor, a condenser, and an evaporative condenser. The refrigerant outlet of the compressor is connected to the refrigerant inlet of the condenser, and the refrigerant outlet of the condenser is connected to the refrigerant inlet of the evaporative condenser. The refrigerant outlet of the condenser is connected to the refrigerant inlet of the compressor, and an expansion valve is connected to the pipeline between the condenser and the evaporative condenser. The compressor is respectively connected to the main power supply and the auxiliary power supply. The compressor The machine and auxiliary power supply are respectively connected to the automatic controller.
在流量控制阀与液泵之间的管道上连接有电磁阀。自动控制器分别与压力平衡阀、储液器上的安全阀、贮压器上的安全阀、液泵、流量调节阀、风机、电磁阀连接。A solenoid valve is connected to the pipeline between the flow control valve and the liquid pump. The automatic controller is respectively connected with the pressure balance valve, the safety valve on the liquid reservoir, the safety valve on the pressure reservoir, the liquid pump, the flow regulating valve, the blower fan and the solenoid valve.
本发明具有下述技术效果：The present invention has following technical effect:
本发明的使用二氧化碳作为载冷剂的空气冷却***具有三大安全控制***，即辅助电源***、贮压器***、安全阀***，当出现停电等突发事故时，能够根据载冷循环***的压力不同，开启不同的安全***，保障***的安全，而且，结构简单，控制简便。同时，采用CO2作为载冷剂，可以达到节能减排的作用。另外，CO2载冷技术也可以与氨和碳氢化合物类制冷技术结合运用，通过载冷过程，克服氨和碳氢化合物类制冷剂易燃、有毒等不足，扩大氨和碳氢化合物类制冷剂的应用领域，如商场、超级市场、酒店等。The air cooling system using carbon dioxide as the refrigerant of the present invention has three major safety control systems, namely the auxiliary power supply system, the accumulator system, and the safety valve system. Depending on the pressure, different safety systems are activated to ensure the safety of the system. Moreover, the structure is simple and the control is convenient. At the same time, using CO2 as the refrigerant can achieve the effect of energy saving and emission reduction. In addition, CO 2 cooling technology can also be used in combination with ammonia and hydrocarbon refrigeration technology. Through the cooling process, ammonia and hydrocarbon refrigerants can overcome the shortcomings of flammability and toxicity, and expand the use of ammonia and hydrocarbon refrigeration. The application fields of the agent, such as shopping malls, supermarkets, hotels, etc.
附图说明 Description of drawings
图1为本发明使用二氧化碳作为载冷剂的空气冷却***的示意图。Fig. 1 is a schematic diagram of an air cooling system using carbon dioxide as a refrigerant in the present invention.
具体实施方式 Detailed ways
以下结合附图和具体实施例对本发明详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
本发明使用二氧化碳作为载冷剂的空气冷却***的示意图如图1所示，由制冷循环***和载冷循环***组成，制冷循环***可以广泛采用液体汽化、气体膨胀、涡流管、热电等制冷方式。所述载冷循环***包括贮压器6、储液器8、液泵11、空气冷却器13和风机14，所述贮压器包括外壳，所述外壳内设置有内管道15，在内管道15上连接有压力平衡阀7，所述内管道一端与所述制冷循环***中的蒸发式冷凝器5的载冷剂出口连接，所述内管道的另一端与储液器的载冷剂进口连接，所述储液器的载冷剂出口与液泵的载冷剂进口连接，所述液泵的载冷剂出口与空气冷却器的载冷剂进口连接，所述空气冷却器的载冷剂出口与蒸发式冷凝器的载冷剂进口连接，在空气冷却器13上部设置有风机14。在储液器8上连接有安全阀9，在贮压器6外壳上连接有安全阀10。在液泵和空气冷却器之间的管道上连接有流量控制阀12。为了精确控制，在流量控制阀与液泵之间的管道上连接有电磁阀。载冷循环***中的载冷剂为二氧化碳，制冷循环***中的制冷剂为能够制取-60℃～-5℃的制冷剂，制冷剂可以为氨、碳氢化合物类、二氧化碳、共沸混合物类中的任一种。The schematic diagram of the air cooling system using carbon dioxide as the refrigerant in the present invention is shown in Figure 1. It is composed of a refrigeration cycle system and a refrigerant cycle system. The refrigeration cycle system can widely use refrigeration methods such as liquid vaporization, gas expansion, vortex tubes, and thermoelectricity. . The load-cooling cycle system includes a pressure accumulator 6, a liquid accumulator 8, a liquid pump 11, an air cooler 13 and a blower fan 14. The accumulator includes a shell, and an inner pipeline 15 is arranged in the shell, and the inner pipeline 15 is connected with a pressure balance valve 7, one end of the inner pipe is connected to the brine outlet of the evaporative condenser 5 in the refrigeration cycle system, and the other end of the inner pipe is connected to the brine inlet of the liquid receiver connected, the brine outlet of the liquid receiver is connected to the brine inlet of the liquid pump, the brine outlet of the liquid pump is connected to the brine inlet of the air cooler, and the brine of the air cooler The agent outlet is connected with the brine inlet of the evaporative condenser, and a fan 14 is arranged on the top of the air cooler 13 . A safety valve 9 is connected to the liquid reservoir 8 , and a safety valve 10 is connected to the shell of the pressure accumulator 6 . A flow control valve 12 is connected to the pipeline between the liquid pump and the air cooler. For precise control, a solenoid valve is connected to the pipeline between the flow control valve and the liquid pump. The refrigerant in the cold cycle system is carbon dioxide, and the refrigerant in the refrigeration cycle system is a refrigerant that can produce -60°C to -5°C. The refrigerant can be ammonia, hydrocarbons, carbon dioxide, and azeotropic mixtures. any of the classes.
本实施例中的制冷循环***包括压缩机1、冷凝器3、蒸发式冷凝器5，压缩机的制冷剂出口与冷凝器的制冷剂进口连接，冷凝器的制冷剂出口与蒸发式冷凝器的制冷剂进口连接，蒸发式冷凝器的制冷剂出口与压缩机的制冷剂进口连接，在冷凝器与蒸发式冷凝器之间的管道上连接有膨胀阀4，所述压缩机分别与主电源和辅助电源2连接。辅助电源采用备用发电机。所述压缩机和辅助电源分别与自动控制器连接。The refrigeration cycle system in this embodiment includes a compressor 1, a condenser 3, and an evaporative condenser 5. The refrigerant outlet of the compressor is connected with the refrigerant inlet of the condenser, and the refrigerant outlet of the condenser is connected with the refrigerant inlet of the evaporative condenser. The refrigerant inlet is connected, the refrigerant outlet of the evaporative condenser is connected with the refrigerant inlet of the compressor, and the expansion valve 4 is connected on the pipeline between the condenser and the evaporative condenser, and the compressor is respectively connected to the main power supply and Auxiliary power supply 2 connection. Auxiliary power is provided by a backup generator. The compressor and the auxiliary power supply are respectively connected with the automatic controller.
自动控制器还分别与压力平衡阀、储液器上的安全阀、贮压器上的安全阀、液泵、流量调节阀、风机、电磁阀连接，以使***自动运行。The automatic controller is also respectively connected with the pressure balance valve, the safety valve on the liquid reservoir, the safety valve on the pressure reservoir, the liquid pump, the flow regulating valve, the blower fan and the solenoid valve to make the system run automatically.
使用时制冷剂(NH3、CO2、R22、R134a等)从压缩机1进入冷凝器3，经膨胀阀4进入蒸发式冷凝器5，吸收CO2的热量，然后重新回到压缩机1。载冷剂CO2在制冷循环***中的蒸发式冷凝器5中被冷凝，通过贮压器6流入CO2的储液器8，然后被液泵11吸入空气冷却器13中，在此冷却器内与冷却空间内物体进行热交换，同时气化、蒸发带走热负荷。蒸发了的CO2气体重新流入制冷循环***的蒸发式冷凝器5中，又被冷凝，开始下一次循环。When in use, the refrigerant (NH 3 , CO 2 , R22, R134a, etc.) enters the condenser 3 from the compressor 1, enters the evaporative condenser 5 through the expansion valve 4, absorbs the heat of CO 2 , and returns to the compressor 1 again. The refrigerant CO 2 is condensed in the evaporative condenser 5 in the refrigeration cycle system, flows into the CO 2 accumulator 8 through the pressure accumulator 6, and then is sucked into the air cooler 13 by the liquid pump 11, where the cooler Heat exchange between objects in the interior and the cooling space, while gasification and evaporation take away the heat load. The evaporated CO gas re-flows into the evaporative condenser 5 of the refrigeration cycle system and is condensed again to start the next cycle.
***开始运行时，被冷却空间内温度较高，通过流量调节阀12调节CO2的流量，并调节空气冷却器上风机14的转速，从而调节载冷循环***的压力，使压力维持一个较稳定的值。When the system starts to operate, the temperature in the cooled space is high, the flow of CO2 is adjusted through the flow regulating valve 12, and the speed of the fan 14 on the air cooler is adjusted, thereby adjusting the pressure of the load-cooling circulation system to maintain a relatively stable pressure value.
制冷循环***停止运行时，CO2载冷循环***中的储液器8中的压力会不断升高，当此压力上升到某一定值P1时，可以通过自动控制器控制制冷循环***的压缩机1，使之运行。When the refrigeration cycle system stops running, the pressure in the liquid receiver 8 in the CO2 - loaded refrigeration cycle system will continue to rise, and when this pressure rises to a certain value P1 , the compression of the refrigeration cycle system can be controlled by an automatic controller Machine 1 and make it run.
当出现停电等突发事故时，随被冷却间内温度的升高，载冷***中的压力不断升高，当压力达到某一定值P2(P1＜P2)时，可以通过自动控制器控制制冷循环***的辅助电源2，使制冷循环在部分负荷下运行，从而降低载冷循环的压力。当载冷循环压力达到某一定值P3(P1＜P2＜P3)时，贮压器内压力平衡阀7打开，平衡***压力。当贮压器内管道15内的CO2压力大于允许压力时，压力平衡阀7打开，贮压器6进行贮压过程，避免载冷***压力太高，当制冷循环***与载冷循环***正常运行，贮压器6内压力大于CO2内管道15内的压力，压力平衡阀打开，贮压器内CO2进入内管道。When sudden accidents such as power outages occur, as the temperature in the cooled room increases, the pressure in the cooling system continues to increase. When the pressure reaches a certain value P 2 (P1<P 2 ), the automatic controller can Control the auxiliary power supply 2 of the refrigerating cycle system to make the refrigerating cycle run under partial load, thereby reducing the pressure of the refrigerating cycle. When the load-cooling cycle pressure reaches a certain value P 3 (P 1 <P 2 <P 3 ), the pressure balance valve 7 in the accumulator opens to balance the system pressure. When the pressure of CO2 in the pipeline 15 in the pressure accumulator is greater than the allowable pressure, the pressure balance valve 7 is opened, and the pressure accumulator 6 carries out the pressure storage process to avoid too high pressure of the load-cooling system. When the refrigeration cycle system and the load-cooling cycle system are normal In operation, the pressure in the pressure accumulator 6 is greater than the pressure in the CO2 inner pipeline 15, the pressure balance valve is opened, and the CO2 in the pressure accumulator enters the inner pipeline.
当贮压器内压力平衡阀打开，***压力仍然大于某一定值P4(P1＜P2＜P3＜P4)时，载冷循环***上的安全阀9、10打开，一部分CO2被排到环境中，直至压力不大于P4。When the pressure balance valve in the accumulator is opened and the system pressure is still greater than a certain value P 4 (P 1 <P 2 <P 3 <P 4 ), the safety valves 9 and 10 on the load-cooling circulation system are opened, and a part of CO 2 Is exhausted to the environment until the pressure is not greater than P 4 .
尽管参照实施例对所公开的涉及一种使用二氧化碳作为载冷剂的空气冷却***进行了特别描述，以上描述的实施例是说明性的而不是限制性的，在不脱离本发明的精神和范围的情况下，所有的变化和修改都在本发明的范围之内。Although the disclosed air cooling system using carbon dioxide as a refrigerant has been specifically described with reference to the embodiments, the above-described embodiments are illustrative rather than restrictive, without departing from the spirit and scope of the present invention All changes and modifications are within the scope of the present invention.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100529024A CN101266081A (en) | 2008-04-25 | 2008-04-25 | Air Cooling System Using Carbon Dioxide as Brine |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100529024A CN101266081A (en) | 2008-04-25 | 2008-04-25 | Air Cooling System Using Carbon Dioxide as Brine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455083A (en) * | 2010-11-03 | 2012-05-16 | 天津商业大学 | Supermarket multi-effect combined system with complete carbon dioxide working medium |
| CN102798254A (en) * | 2012-09-06 | 2012-11-28 | 江苏天舒电器有限公司 | Heat utilization balance processor |
| CN103743142A (en) * | 2014-01-21 | 2014-04-23 | 烟台富仕通上奇制冷设备有限公司 | Cooling system based on low-temperature refrigerant exchange station |
| CN111207527A (en) * | 2019-07-16 | 2020-05-29 | 山东优库制冷技术有限公司 | Carbon dioxide secondary refrigerant refrigerating system |
-
2008
- 2008-04-25 CN CNA2008100529024A patent/CN101266081A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455083A (en) * | 2010-11-03 | 2012-05-16 | 天津商业大学 | Supermarket multi-effect combined system with complete carbon dioxide working medium |
| CN102798254A (en) * | 2012-09-06 | 2012-11-28 | 江苏天舒电器有限公司 | Heat utilization balance processor |
| CN102798254B (en) * | 2012-09-06 | 2014-06-18 | 江苏天舒电器有限公司 | Heat utilization balance processor |
| CN103743142A (en) * | 2014-01-21 | 2014-04-23 | 烟台富仕通上奇制冷设备有限公司 | Cooling system based on low-temperature refrigerant exchange station |
| CN103743142B (en) * | 2014-01-21 | 2015-11-04 | 烟台富仕通上奇制冷设备有限公司 | A kind of refrigeration system based on low temperature refrigerant switching station |
| CN111207527A (en) * | 2019-07-16 | 2020-05-29 | 山东优库制冷技术有限公司 | Carbon dioxide secondary refrigerant refrigerating system |
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