CN116661521A - A distributed temperature control method for energy storage used in environmental test chambers - Google Patents
A distributed temperature control method for energy storage used in environmental test chambers Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及环境试验技术领域，具体为一种用于环境试验箱的储能分布式温控方法。The invention relates to the technical field of environmental testing, in particular to an energy storage distributed temperature control method for an environmental testing chamber.
背景技术Background technique
在环境试验领域中，一台环境实验仪器一般对应一套制冷系统，每一套制冷系统都有对应的制冷配件，如制冷压缩机、冷凝器、油分离器、电磁阀、膨胀阀等；在批量使用的环境仪器中也会大批量使用这些制冷配件以及调控这些制冷配件相应的控制系统；如果使用的是水冷系统，还需给每一套制冷系统配置冷却水以及相关管路；造成系统复杂、成本高、总体故障率高等问题；因此我们需要提出一种用于环境试验箱的储能分布式温控方法。In the field of environmental testing, an environmental testing instrument generally corresponds to a set of refrigeration systems, and each set of refrigeration systems has corresponding refrigeration accessories, such as refrigeration compressors, condensers, oil separators, solenoid valves, expansion valves, etc.; Environmental instruments that are used in batches will also use these refrigeration accessories in large quantities and regulate the corresponding control systems of these refrigeration accessories; if a water-cooled system is used, cooling water and related pipelines need to be configured for each refrigeration system; resulting in complex systems , high cost, and high overall failure rate; therefore, we need to propose a distributed temperature control method for energy storage used in environmental test chambers.
发明内容Contents of the invention
本发明的目的在于提供一种用于环境试验箱的储能分布式温控方法，具备减少了制冷系统的相关配件以及简化了相关的控制系统，简化了冷却水系统的管路，降低了制造成本，很大程度降低了故障率，使系统运行更加稳定的优点，以解决上述背景技术中提出的问题。The object of the present invention is to provide an energy storage distributed temperature control method for an environmental test chamber, which reduces the number of related accessories of the refrigeration system and simplifies the related control system, simplifies the pipeline of the cooling water system, and reduces the manufacturing cost. cost, greatly reduces the failure rate, and makes the system run more stable, so as to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供一种用于环境试验箱的储能分布式温控方法，包括制冷加热系统、导热剂系统、控制系统以及若干个试验箱体；其中，所述制冷加热系统与导热剂系统组成回路，导热剂系统与若干个所述试验箱体连通在一起，若干个试验箱体与控制系统的连接关系为并联；其中，制冷加热系统提前对导热剂系统制冷或加热，使导热剂系统的温度达到第一温度后，根据试验箱体不同温度需求，导热剂系统将相同和/或不同流量的流体输出至各试验箱体，不同的试验箱体获得相同或不同的第二温度，制冷加热系统使导热剂系统保持第一温度；与传统一个试验箱体需要对应一台压缩机而言，本发明采用一制冷加热系统与导热剂系统构成储能载体，由一个储能载体拖多个试验箱体，对各验箱体温度实现集中管理，机组小节省空间，由于本发明是提前制冷或制热，导热剂系统保持第一温度所需功率不大，整个机组功率小节省电费，空置率低，实现全面增效，安装成本低，使用成本低。In order to achieve the above object, the present invention provides an energy storage distributed temperature control method for an environmental test chamber, including a refrigeration and heating system, a heat transfer agent system, a control system, and several test chambers; wherein, the refrigeration and heating system and The heat conduction agent system forms a circuit, the heat conduction agent system is connected with several test chambers, and the connection relationship between several test chambers and the control system is parallel connection; wherein, the cooling and heating system refrigerates or heats the heat conduction agent system in advance, so that After the temperature of the heat transfer agent system reaches the first temperature, according to the different temperature requirements of the test chambers, the heat transfer agent system will output the same and/or different flow fluids to each test chamber, and different test chambers will obtain the same or different second temperature. temperature, the refrigeration and heating system keeps the heat transfer agent system at the first temperature; compared with the need for a compressor corresponding to a traditional test box, the present invention uses a refrigeration and heating system and a heat transfer agent system to form an energy storage carrier, and an energy storage carrier Drag multiple test chambers to realize centralized management of the temperature of each test chamber. The unit is small and saves space. Since the present invention is cooling or heating in advance, the heat transfer agent system requires little power to maintain the first temperature, and the power of the entire unit is small and saves Low electricity bills, low vacancy rate, comprehensive efficiency increase, low installation cost, and low use cost.
优选的，所述制冷加热系统包括制冷压缩机、节流装置、蒸发器和加热器；其中，所述制冷压缩机、节流装置、蒸发器和加热器之间通过铜管连接在一起；所述导热剂系统包括导热剂储能箱、换热器和循环管路；其中，所述导热剂储能箱、换热器和循环组件之间通过循环管路连接在一起；所述控制系统包括控制器和内箱温度传感器，所述控制器和内箱温度传感器与试验箱体配套安装。Preferably, the refrigerating and heating system includes a refrigerating compressor, a throttling device, an evaporator, and a heater; wherein, the refrigerating compressor, the throttling device, the evaporator, and the heater are connected together through copper pipes; the The heat-conducting agent system includes a heat-conducting agent energy storage tank, a heat exchanger, and a circulation pipeline; wherein, the heat-conducting agent energy storage tank, the heat exchanger, and a circulation assembly are connected together through a circulation pipeline; the control system includes A controller and an inner box temperature sensor are installed together with the test box body.
优选的，所述制冷加热系统还包括制冷组件；所述制冷组件连接在制冷压缩机上。Preferably, the refrigerating and heating system further includes a refrigerating assembly; the refrigerating assembly is connected to the refrigerating compressor.
优选的，所述制冷组件包括冷凝器，所述制冷压缩机、冷凝器、节流装置和蒸发器依次按顺序用铜管连接起来，形成一个循环系统。Preferably, the refrigerating assembly includes a condenser, and the refrigerating compressor, condenser, throttling device and evaporator are sequentially connected with copper pipes to form a circulation system.
优选的，所述制冷组件包括预冷器和冷凝器，所述制冷压缩机、预冷器、冷凝器、节流装置和蒸发器依次按顺序用铜管连接起来，形成一个循环系统。Preferably, the refrigeration assembly includes a precooler and a condenser, and the refrigeration compressor, precooler, condenser, throttling device and evaporator are sequentially connected with copper pipes to form a circulation system.
优选的，所述导热剂系统还包括循环组件；所述循环组件连接在循环管路上。Preferably, the heat transfer agent system further includes a circulation component; the circulation component is connected to a circulation pipeline.
优选的，所述循环组件包括流量泵，所述流量泵设置有多组，所述导热剂储能箱、流量泵和换热器通过管路依次连接在一起。Preferably, the circulation assembly includes flow pumps, and there are multiple sets of flow pumps, and the heat transfer agent storage tank, flow pump and heat exchanger are sequentially connected together through pipelines.
优选的，所述循环组件包括增压泵和三通比例阀，所述增压泵设置一组，所述三通比例阀设置有多组，且所述导热剂储能箱、增压泵、多组三通比例阀和换热器通过管路依次连接在一起。Preferably, the circulation assembly includes a booster pump and a three-way proportional valve, the booster pump is provided in one group, the three-way proportional valve is provided in multiple groups, and the heat transfer agent energy storage tank, booster pump, Multiple sets of three-way proportional valves and heat exchangers are connected together sequentially through pipelines.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
本发明通过制冷加热系统对导热剂系统内的流体(冷冻液、硅油、水等)进行预加热或预制冷且控制维持第一温度，根据试验箱体的温度需求，向各试验箱体输入一定量的流体，从而使试验箱体能够快速达到理想的测试温度，且不同试验箱体可实现同一温度，或不同温度，以减少测序时间且提高测试效率。The present invention preheats or precools the fluid (freezing liquid, silicone oil, water, etc.) A large amount of fluid, so that the test chamber can quickly reach the ideal test temperature, and different test chambers can achieve the same temperature or different temperatures to reduce sequencing time and improve test efficiency.
本发明是先储能，再向各试验箱体输送相同流量或不同流量的流体，从而使不同试验箱体获得相同或不同的测试温度，或实现部分试验箱体进行测试工作而部分试验箱体不进行测试工作，实现不同试验箱体同时进行不同温度测试。The present invention is to store energy first, and then deliver fluids with the same flow rate or different flow rates to each test chamber, so that different test chambers can obtain the same or different test temperatures, or realize that some test chambers perform testing work and some test chambers Without testing work, different test chambers can be tested at different temperatures at the same time.
采用流体温度实现试验箱体温度调控，温度波动小，系统稳定、可靠性高。The fluid temperature is used to realize the temperature regulation of the test box, the temperature fluctuation is small, the system is stable and the reliability is high.
降低设计难度，与传统一个试验箱体需要对应一台压缩机而言，本发明采用一制冷加热系统与导热剂系统构成储能载体，由一个储能载体拖多个试验箱体，对各验箱体温度实现集中管理，机组小节省空间，由于本发明是提前制冷或制热，导热剂系统保持第一温度所需功率不大，整个机组功率小节省电费，空置率低，实现全面增效，安装成本低，使用成本低。To reduce the difficulty of design, compared with the need for one compressor corresponding to one traditional test chamber, the present invention adopts a refrigeration heating system and a heat transfer agent system to form an energy storage carrier, and one energy storage carrier drags multiple test chambers, and each test chamber Centralized management of the temperature of the box is achieved, and the small unit saves space. Since the present invention is refrigeration or heating in advance, the power required by the heat transfer agent system to maintain the first temperature is not large, and the power of the whole unit is small to save electricity costs. , Low installation cost and low use cost.
附图说明Description of drawings
图1为本发明实施例一中用于环境试验箱的储能分布式温控方法的结构示意图；Fig. 1 is a schematic structural diagram of an energy storage distributed temperature control method used in an environmental test chamber in Embodiment 1 of the present invention;
图2为本发明实施例二中用于环境试验箱的储能分布式温控方法的结构示意图；2 is a schematic structural diagram of a distributed temperature control method for energy storage used in an environmental test chamber in Embodiment 2 of the present invention;
图3为本发明实施例三中用于环境试验箱的储能分布式温控方法的结构示意图。FIG. 3 is a schematic structural diagram of a distributed temperature control method for energy storage used in an environmental test chamber in Embodiment 3 of the present invention.
图中：100、制冷加热系统；101、制冷压缩机；102、节流装置；103、蒸发器；104、加热器；105、冷凝器；106、预冷器；200、导热剂系统；201、导热剂储能箱；202、换热器；203、循环管路；204、流量泵；205、增压泵；206、三通比例阀；300、控制系统；301、控制器；302、内箱温度传感器；400、试验箱体。In the figure: 100, refrigeration and heating system; 101, refrigeration compressor; 102, throttling device; 103, evaporator; 104, heater; 105, condenser; 106, precooler; 200, heat transfer agent system; 201, Heat conduction agent energy storage tank; 202, heat exchanger; 203, circulation pipeline; 204, flow pump; 205, booster pump; 206, three-way proportional valve; 300, control system; 301, controller; 302, inner box temperature sensor; 400, test box.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
实施例一Embodiment one
请参阅图1，本发明提供一种用于环境试验箱的储能分布式温控方法，包括制冷加热系统100、导热剂系统200、控制系统300以及若干个试验箱体400；其中，所述制冷加热系统100与导热剂系统200组成回路，导热剂系统200与若干个所述试验箱体400连通在一起，若干个试验箱体400与控制系统300的连接关系为并联；Please refer to Fig. 1, the present invention provides an energy storage distributed temperature control method for an environmental test chamber, including a refrigeration and heating system 100, a heat transfer agent system 200, a control system 300 and several test chambers 400; wherein, the The cooling and heating system 100 and the heat transfer agent system 200 form a circuit, the heat transfer agent system 200 is connected with several test chambers 400, and the connection relationship between the several test chambers 400 and the control system 300 is parallel connection;
其中，制冷加热系统100对导热剂系统200制冷或加热，使导热剂系统200的温度达到第一温度后，根据试验箱体400不同温度需求，控制系统300控制导热剂系统200将相同和/或不同流量的流体输出至各试验箱体400，不同的试验箱体400获得相同或不同的第二温度，由于导热剂系统200与试验箱体400进行热量交换后，导热剂系统200的温度会变化，在导热剂系统200温度与第一温度有差异时，制冷加热系统100使导热剂系统(200)再次达到第一温度，即导热剂系统(200)保持恒温，所需功率较低，整个机组的功率较小。Wherein, the cooling and heating system 100 refrigerates or heats the heat transfer agent system 200, and after the temperature of the heat transfer agent system 200 reaches the first temperature, according to the different temperature requirements of the test chamber 400, the control system 300 controls the heat transfer agent system 200 to be the same and/or Fluids with different flow rates are output to each test chamber 400, and different test chambers 400 obtain the same or different second temperatures. After heat exchange between the heat transfer agent system 200 and the test chamber 400, the temperature of the heat transfer agent system 200 will change. , when there is a difference between the temperature of the heat transfer agent system 200 and the first temperature, the cooling and heating system 100 makes the heat transfer agent system (200) reach the first temperature again, that is, the heat transfer agent system (200) maintains a constant temperature, and the required power is low. The power is less.
本实施例中，制冷加热系统100包含制冷压缩机101、冷凝器105、节流装置102、蒸发器103、加热器104以及相关辅助配件未画出。制冷压缩机101、冷凝器105、节流装置102、蒸发器103依次按顺序用铜管连接起来，形成一个循环系统，制冷系统中充满制冷剂，制冷剂在循环系统中循环流动。低温低压的气态制冷剂经过制冷压缩机101的做功，变成高温高压气态制冷剂，流经冷凝器105进行放热之后变成常温高压液态状态，经过节流装置102的节流作用，节流装置102出口的制冷剂变成低温低压的气液混合物，制冷剂再进入蒸发器103吸热变成低温低压气态状态，最后回到制冷压缩机101被压缩，完成了一个循环。In this embodiment, the refrigeration and heating system 100 includes a refrigeration compressor 101, a condenser 105, a throttling device 102, an evaporator 103, a heater 104 and related auxiliary accessories are not shown. Refrigeration compressor 101, condenser 105, throttling device 102, and evaporator 103 are sequentially connected with copper pipes to form a circulation system. The refrigeration system is filled with refrigerant, and the refrigerant circulates in the circulation system. The low-temperature and low-pressure gaseous refrigerant turns into a high-temperature and high-pressure gaseous refrigerant through the work done by the refrigeration compressor 101, flows through the condenser 105 to release heat, and then becomes a normal temperature and high-pressure liquid state, and passes through the throttling effect of the throttling device 102, throttling The refrigerant at the outlet of the device 102 becomes a low-temperature and low-pressure gas-liquid mixture, then enters the evaporator 103 to absorb heat and becomes a low-temperature and low-pressure gaseous state, and finally returns to the refrigeration compressor 101 to be compressed, completing a cycle.
作为优选的，导热剂系统200包含导热剂储能箱201、多个流量泵204、多个换热器202、循环管路203以及系统内流动的导热剂。导热剂储能箱201、流量泵204和换热器202通过管路依次连接起来，形成多个循环管路203，导热剂储能箱201和管路内充注合适导热剂。制冷加热系统100的蒸发器103和加热器104安装在导热剂储能箱201内，分别与导热剂进行热量交换，使导热剂温度降低或者升高。每一个试验箱体400配置一个安装在内部的换热器202和一套循环管路203，每一套循环管路203配置一个流量泵204，通过控制流量泵204的运转频率控制循环管路203中的导热剂流量，进一步控制试验箱体400的制冷量或者制热量。Preferably, the heat transfer agent system 200 includes a heat transfer agent storage tank 201 , a plurality of flow pumps 204 , a plurality of heat exchangers 202 , a circulation pipeline 203 and the heat transfer agent flowing in the system. The heat-conducting agent energy storage tank 201, the flow pump 204 and the heat exchanger 202 are sequentially connected through pipelines to form a plurality of circulation pipelines 203, and the heat-conducting agent energy storage tank 201 and the pipelines are filled with a suitable heat-conducting agent. The evaporator 103 and the heater 104 of the cooling and heating system 100 are installed in the heat transfer medium energy storage tank 201, and exchange heat with the heat transfer medium respectively, so as to lower or increase the temperature of the heat transfer medium. Each test box 400 is equipped with a heat exchanger 202 installed inside and a set of circulation pipeline 203, and each set of circulation pipeline 203 is equipped with a flow pump 204, and the circulation pipeline 203 is controlled by controlling the operating frequency of the flow pump 204 The flow rate of the heat conducting agent in the test box 400 further controls the cooling capacity or heating capacity.
值得说明的是，控制系统300包含控制器301、内箱温度传感器302和流量泵204。内箱温度传感器302检测到的试验箱体400内箱温度和所设定的内箱温度设定值进行对比，控制器301通过PID调节控制流量泵204的流量控制换热器202的制冷量或者制热量。当试验箱体400冷负荷或者热负荷较大的时候，控制器301通过加大流量泵204的运转频率从而加大循环管路203中的导热剂流量，进一步控制试验箱体400的制冷量或者制热量。当冷负荷或者热负荷较小，控制器301通过减小流量泵204的运转频率从而减小循环管路203中的导热剂流量，进一步减小试验箱体400换热器202的制冷量或者制热量，使制冷量或者制热量适配负荷。It should be noted that the control system 300 includes a controller 301 , an inner box temperature sensor 302 and a flow pump 204 . The inner box temperature of the test box body 400 detected by the inner box temperature sensor 302 is compared with the set inner box temperature setting value, and the controller 301 adjusts and controls the flow rate of the flow pump 204 to control the cooling capacity of the heat exchanger 202 or Heating capacity. When the cooling load or heat load of the test box 400 is large, the controller 301 increases the flow rate of the heat transfer agent in the circulation pipeline 203 by increasing the operating frequency of the flow pump 204, and further controls the cooling capacity of the test box 400 or Heating capacity. When the cooling load or heat load is small, the controller 301 reduces the flow rate of the heat transfer agent in the circulation pipeline 203 by reducing the operating frequency of the flow pump 204, thereby further reducing the cooling capacity or cooling capacity of the heat exchanger 202 of the test box 400. Heat, so that the cooling or heating capacity is adapted to the load.
需要说明的是，具体的控制方式如下：It should be noted that the specific control methods are as follows:
需要制冷时：导热剂储能箱201里面灌注适量导热剂，试验箱体400在使用之前，制冷加热系统100提前将导热剂储能箱201里面的导热剂降温到一定的温度实现储冷目的，该温度定义为储冷温度，储冷温度低于所有试验箱体400的最低试验温度，导热剂温度降到储冷温度后制冷加热系统100停止运行。随着导热剂冷量的消耗，导热剂储能箱201里面的导热剂温度逐渐提高，当温度的提高到一定的温度时，制冷加热系统100重新开启，使导热剂温度再次降到储冷温度。各个试验箱体400需要制冷时，各自的控制系统300通过PID调控的方式根据各自的冷负荷调控各个循环管路203的导热剂流量，以满足各个试验箱体400的制冷需求。When refrigeration is required: the heat-conducting agent energy storage tank 201 is filled with an appropriate amount of heat-conducting agent. Before the test box 400 is used, the cooling and heating system 100 will cool down the heat-conducting agent in the heat-conducting agent energy storage tank 201 to a certain temperature in advance to achieve the purpose of cold storage. This temperature is defined as the cold storage temperature, which is lower than the lowest test temperature of all test boxes 400, and the refrigeration and heating system 100 stops running after the temperature of the heat transfer agent drops to the cold storage temperature. As the cooling capacity of the heat-conducting agent is consumed, the temperature of the heat-conducting agent in the heat-conducting agent energy storage tank 201 gradually increases. When the temperature rises to a certain temperature, the refrigeration and heating system 100 is restarted, so that the temperature of the heat-conducting agent drops to the cold storage temperature again. . When each test chamber 400 needs to be refrigerated, its respective control system 300 regulates the heat transfer agent flow rate of each circulation pipeline 203 according to its respective cooling load through PID regulation, so as to meet the cooling demand of each test chamber 400 .
需要制热时：试验箱体400在使用之前，制冷加热系统100提前将导热剂储能箱201里面的导热剂加热到一定的温度实现储热目的，该温度定义为储热温度，储热温度高于所有试验箱体400的最高试验温度，导热剂温度升到储热温度后制冷加热系统100停止运行。随着导热剂热量的消耗，导热剂储能箱201里面的导热剂温度逐渐降低，当温度的降低到一定的温度时，制冷加热系统100重新开启，使导热剂温度再次升到储热温度。各个试验箱体400需要制热时，各自的控制系统300通过PID调控的方式根据各自的热负荷调控各个循环管路203的导热剂流量，以满足各个试验箱体400的制热需求。When heating is required: before the test box 400 is used, the cooling and heating system 100 will heat the heat transfer agent in the heat transfer agent energy storage tank 201 to a certain temperature in advance to achieve the purpose of heat storage. This temperature is defined as the heat storage temperature, and the heat storage temperature Higher than the highest test temperature of all test boxes 400, the cooling and heating system 100 stops running after the temperature of the heat transfer agent rises to the heat storage temperature. With the consumption of the heat of the heat conducting agent, the temperature of the heat conducting agent in the heat conducting agent energy storage tank 201 gradually decreases. When the temperature drops to a certain temperature, the cooling and heating system 100 is restarted, so that the temperature of the heat conducting agent rises to the heat storage temperature again. When each test chamber 400 needs to be heated, its respective control system 300 regulates the heat transfer agent flow rate of each circulation pipeline 203 according to its respective heat load through PID regulation, so as to meet the heating demand of each test chamber 400 .
实施例二Embodiment two
请参阅图2，本发明提供一种用于环境试验箱的储能分布式温控方法，包括制冷加热系统100、导热剂系统200、控制系统300以及试验箱体400；其中，制冷加热系统100通过导热剂系统200与试验箱体400连通在一起，控制系统300与试验箱体400配套设置。Please refer to Fig. 2, the present invention provides an energy storage distributed temperature control method for an environmental test chamber, including a refrigeration and heating system 100, a heat transfer agent system 200, a control system 300 and a test chamber 400; wherein, the refrigeration and heating system 100 The heat conducting agent system 200 is connected with the test box 400 , and the control system 300 is matched with the test box 400 .
与实施例一不同的是：The difference from Example 1 is:
导热剂系统200包含导热剂储能箱201、增压泵205、多个三通比例阀206、多个换热器202、循环管路203以及系统内流动的导热剂。导热剂储能箱201、增压泵205、多个三通比例阀206和换热器202通过管路依次连接起来，形成多个循环管路203，导热剂储能箱201和管路内充注合适导热剂。制冷加热系统100的蒸发器103和加热器104安装在导热剂储能箱201内，与导热剂进行热量交换，使导热剂温度降低或者升高。每一个试验箱体400配置一个安装在内部的换热器202和一套循环管路203，每一套循环管路203配置一个三通比例阀206，通过控制三通比例阀206的开度，控制循环管路203中的导热剂流量，进一步控制试验箱体400的制冷量或者制热量。The heat transfer agent system 200 includes a heat transfer agent storage tank 201 , a booster pump 205 , a plurality of three-way proportional valves 206 , a plurality of heat exchangers 202 , a circulation pipeline 203 and the heat transfer agent flowing in the system. Heat conduction agent energy storage tank 201, booster pump 205, multiple three-way proportional valves 206 and heat exchanger 202 are connected sequentially through pipelines to form multiple circulation pipelines 203, heat conduction agent energy storage tank 201 and pipelines are filled with Inject a suitable heat-conducting agent. The evaporator 103 and the heater 104 of the cooling and heating system 100 are installed in the heat transfer agent storage tank 201, and exchange heat with the heat transfer agent to lower or increase the temperature of the heat transfer agent. Each test box 400 is equipped with a heat exchanger 202 installed inside and a set of circulation pipeline 203, and each set of circulation pipeline 203 is equipped with a three-way proportional valve 206, by controlling the opening of the three-way proportional valve 206, The flow rate of the heat transfer agent in the circulation pipeline 203 is controlled to further control the cooling capacity or heating capacity of the test chamber 400 .
实施例三Embodiment Three
请参阅图3，本发明提供一种用于环境试验箱的储能分布式温控方法，包括制冷加热系统100、导热剂系统200、控制系统300以及试验箱体400；其中，制冷加热系统100通过导热剂系统200与试验箱体400连通在一起，控制系统300与试验箱体400配套设置。Please refer to FIG. 3 , the present invention provides an energy storage distributed temperature control method for an environmental test chamber, including a refrigeration and heating system 100, a heat transfer agent system 200, a control system 300, and a test chamber 400; wherein, the refrigeration and heating system 100 The heat conducting agent system 200 is connected with the test box 400 , and the control system 300 is matched with the test box 400 .
与实施例一和二不同的是：The difference with embodiment one and two is:
制冷加热系统100包含制冷压缩机101、预冷器106、冷凝器105、节流装置102、蒸发器103、加热器104以及相关辅助配件未画出。制冷压缩机101、预冷器106、冷凝器105、节流装置102、蒸发器103依次按顺序用铜管连接起来，形成一个循环系统，制冷系统中充满制冷剂，制冷剂在循环系统中循环流动。低温低压的气态制冷剂经过制冷压缩机101的做功，变成高温高压气态制冷剂，高温高压气态制冷剂进入预冷器106放出一定的热量并降低温度，然后流经冷凝器105进行放热之后变成常温高压液态状态，经过节流装置102的节流作用，节流装置102出口的制冷剂变成低温低压的气液混合物，制冷剂再进入蒸发器103吸热变成低温低压气态状态，最后回到制冷压缩机101被压缩，完成了一个循环。The refrigeration and heating system 100 includes a refrigeration compressor 101, a precooler 106, a condenser 105, a throttling device 102, an evaporator 103, a heater 104 and related auxiliary accessories are not shown. Refrigeration compressor 101, pre-cooler 106, condenser 105, throttling device 102, and evaporator 103 are connected in sequence with copper pipes to form a circulation system, the refrigeration system is filled with refrigerant, and the refrigerant circulates in the circulation system flow. The low-temperature and low-pressure gaseous refrigerant passes through the refrigeration compressor 101 to become a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant enters the precooler 106 to release a certain amount of heat and lower the temperature, and then flows through the condenser 105 to release heat. It becomes a normal temperature and high pressure liquid state, and through the throttling action of the throttling device 102, the refrigerant at the outlet of the throttling device 102 becomes a low-temperature and low-pressure gas-liquid mixture, and then enters the evaporator 103 to absorb heat and become a low-temperature and low-pressure gaseous state. Finally return to the refrigeration compressor 101 to be compressed, completing a cycle.
导热剂系统200包含两组导热剂储能箱201、多个流量泵204、多个换热器202、循环管路203以及系统内流动的导热剂。第一组导热剂储能箱201和第二组导热剂储能箱201分别与对应的流量泵204和换热器202通过管路依次连接起来，形成多个循环管路203，导热剂储能箱201和管路内充注合适导热剂。制冷加热系统100的蒸发器103和加热器104安装在第一组导热剂储能箱201内，分别与导热剂进行热量交换，使导热剂温度降低或者升高。预冷器106安装在第二组导热剂储能箱201内，放出热量使导热剂温度升高。每一个试验箱体400配置一个安装在内部的换热器202和一套循环管路203，每一套循环管路203配置一个流量泵204，通过控制流量泵204的运转频率控制循环管路203中的导热剂流量，进一步控制试验箱体400的制冷量或者制热量。The heat transfer agent system 200 includes two sets of heat transfer agent storage tanks 201 , a plurality of flow pumps 204 , a plurality of heat exchangers 202 , a circulation pipeline 203 and the heat transfer agent flowing in the system. The first group of heat-conducting agent energy storage tanks 201 and the second group of heat-conducting agent energy storage tanks 201 are respectively connected to the corresponding flow pumps 204 and heat exchangers 202 through pipelines to form a plurality of circulation pipelines 203, and the heat-conducting agent stores energy. The tank 201 and the pipeline are filled with a suitable heat conducting agent. The evaporator 103 and the heater 104 of the cooling and heating system 100 are installed in the first group of heat transfer agent energy storage tanks 201 , and exchange heat with the heat transfer agent respectively to lower or increase the temperature of the heat transfer agent. The pre-cooler 106 is installed in the second group of heat-conducting agent energy storage tanks 201, and releases heat to increase the temperature of the heat-conducting agent. Each test box 400 is equipped with a heat exchanger 202 installed inside and a set of circulation pipeline 203, and each set of circulation pipeline 203 is equipped with a flow pump 204, and the circulation pipeline 203 is controlled by controlling the operating frequency of the flow pump 204 The flow rate of the heat conducting agent in the test box 400 further controls the cooling capacity or heating capacity.
值得说明的是，其具体控制方式如下：It is worth noting that the specific control methods are as follows:
第一组导热剂储能箱201里面的导热剂既可以降低温也可以升高温，所以与第一组导热剂储能箱201形成回路的试验箱体400既可以做低温试验也可以做高温试验。The heat-conducting agent in the first group of heat-conducting agent energy storage tanks 201 can both lower the temperature and raise the temperature, so the test box 400 forming a circuit with the first group of heat-conducting agent energy storage tanks 201 can be used for both low-temperature tests and high-temperature tests .
需要制冷时：第一组导热剂储能箱201里面灌注适量导热剂，试验箱体400在使用之前，制冷加热系统100提前将第一组导热剂储能箱201里面的导热剂降温到一定的温度实现储冷目的，该温度定义为储冷温度，储冷温度低于所有试验箱体400的最低试验温度，导热剂温度降到储冷温度后制冷加热系统100停止运行。随着导热剂冷量的消耗，第一组导热剂储能箱201里面的导热剂温度逐渐提高，当温度的提高到一定的温度时，制冷加热系统100重新开启，使导热剂温度再次降到储冷温度。各个试验箱体400需要制冷时，各自的控制系统300通过PID调控的方式根据各自的冷负荷调控各个循环管路203的导热剂流量，以满足各个试验箱体400的制冷需求。When cooling is required: the first group of heat-conducting agent energy storage tanks 201 are filled with an appropriate amount of heat-conducting agent, and before the test box 400 is used, the cooling and heating system 100 cools the heat-conducting agent in the first group of heat-conducting agent energy storage tanks 201 to a certain temperature in advance. The temperature achieves the purpose of cold storage, which is defined as the cold storage temperature, which is lower than the lowest test temperature of all test boxes 400, and the refrigeration and heating system 100 stops running after the temperature of the heat transfer agent drops to the cold storage temperature. With the consumption of the cooling capacity of the heat-conducting agent, the temperature of the heat-conducting agent in the first group of heat-conducting agent energy storage tanks 201 gradually increases. Storage temperature. When each test chamber 400 needs to be refrigerated, its respective control system 300 regulates the heat transfer agent flow rate of each circulation pipeline 203 according to its respective cooling load through PID regulation, so as to meet the cooling demand of each test chamber 400 .
需要制热时：试验箱体400在使用之前，制冷加热系统100提前将第一组导热剂储能箱201里面的导热剂加热到一定的温度实现储热目的，该温度定义为储热温度，储热温度高于所有试验箱体400的最高试验温度，导热剂温度升到储热温度后制冷加热系统停止运行。随着导热剂热量的消耗，第一组导热剂储能箱201里面的导热剂温度逐渐降低，当温度的降低到一定的温度时，制冷加热系统100重新开启，使导热剂温度再次升到储热温度。各个试验箱体400需要制热时，各自的控制系统300通过PID调控的方式根据各自的热负荷调控各个循环管路203的导热剂流量，以满足各个试验箱体400的制热需求。When heating is required: before the test box 400 is used, the refrigeration and heating system 100 will heat the heat transfer agent in the first group of heat transfer agent energy storage tanks 201 to a certain temperature in advance to achieve the purpose of heat storage. This temperature is defined as the heat storage temperature. The heat storage temperature is higher than the maximum test temperature of all test chambers 400, and the cooling and heating system stops running after the temperature of the heat transfer agent rises to the heat storage temperature. With the consumption of the heat of the heat-conducting agent, the temperature of the heat-conducting agent in the first group of heat-conducting agent energy storage tanks 201 gradually decreases. heat temperature. When each test chamber 400 needs to be heated, its respective control system 300 regulates the heat transfer agent flow rate of each circulation pipeline 203 according to its respective heat load through PID regulation, so as to meet the heating demand of each test chamber 400 .
第二组导热剂储能箱201里面的导热剂只能吸收预冷器106释放出来的热量，所以里面的载冷剂只能升高温，与第二组导热剂储能箱201形成回路的试验箱体400只能做高温试验。控制系统300通过控制流量泵204来控制各个试验箱体400的制热量，如果流量泵204的供液流量调到最大仍无法满足制热要求，则需开启对应试验箱体400内辅助电加热器104进行加热补充，以满足制热条件。The heat-conducting agent in the second group of heat-conducting agent energy storage tanks 201 can only absorb the heat released by the precooler 106, so the brine inside can only increase the temperature, and the test of forming a circuit with the second group of heat-conducting agent energy storage tanks 201 Box 400 can only do high temperature test. The control system 300 controls the heating capacity of each test chamber 400 by controlling the flow pump 204. If the liquid supply flow rate of the flow pump 204 is adjusted to the maximum and still cannot meet the heating requirements, it is necessary to turn on the auxiliary electric heater in the corresponding test chamber 400 104 performs supplementary heating to meet the heating conditions.
本发明将所有的试验箱的制冷环节集中到一套制冷系统执行，很大程度上减少制冷系统配件，简化了系统，减少故障率，系统运行更加稳定；不用对每个试验箱体的制冷系统进行冷却，简化了冷却水系统的管路，降低了制造成本；通过集中制冷，制冷量按需分配给不同的试验箱体，制冷量可实现从零开始的无级调节，避免了独立制冷系统中只要需要制冷量就要运行制冷系统并且有最低能耗的情况，本装置总体上减少了能耗，更为环保。The present invention concentrates the refrigeration links of all the test chambers into a set of refrigeration system, greatly reduces the accessories of the refrigeration system, simplifies the system, reduces the failure rate, and makes the system run more stably; Cooling simplifies the piping of the cooling water system and reduces manufacturing costs; through centralized cooling, the cooling capacity is distributed to different test chambers on demand, and the cooling capacity can be adjusted steplessly from zero, avoiding the need for an independent cooling system As long as the refrigeration capacity is needed, the refrigeration system must be operated and the energy consumption is the lowest. The device generally reduces energy consumption and is more environmentally friendly.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
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