Temperature control system

Abstract

The invention discloses a temperature control system which comprises an outlet end A and a return port end B which are used for being communicated with two ports of a cold source system with circulating power respectively, and a first heat exchange device is arranged between the outlet end A and the return port end B; inlets of the circulating branches are communicated with the outlet end A, and outlets of the circulating branches are communicated with the return port end B; and the at least two circulating systems are provided with second heat exchange devices, and the circulating systems communicate with the corresponding circulating branches. According to the temperature control system, the overall size can be effectively reduced, the system reliability is improved, the system operation energy consumption is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control equipment, and more specifically, to a temperature control system. Background Art

[0002] In the field of ultra-high precision micro-size processing and measurement, a temperature control system is often required to provide an accurate and stable temperature control environment to ensure that certain key technical indicators in process control are controllable.

[0003] In the prior art, a temperature control system is formed by integrating a gas tank system and a water tank system, and the cooling circulating medium in the water tank system exchanges heat with the circulating air of the gas tank system after multiple cycles to achieve the temperature control effect. The water tank system is composed of a water supply circulation system with a water pump as the circulation power, a compressor refrigeration system and a water cooling system.

[0004] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0005] The water supply circulation system includes water pumps, water tanks and other components, which results in a large overall size and large number of temperature control systems, and high energy consumption during system operation. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a temperature control system to solve the problem that the water circulation system has many water supply components, which leads to a large volume of the temperature control system.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A temperature control system, comprising:

[0009] The outlet port A and the return port B are used to respectively connect two ports of a cold source system having circulating power, and a first heat exchange device is arranged between the outlet port A and the return port B;

[0010] At least two circulation branches, whose inlets are both connected to the outlet port A, and whose outlets are both connected to the return port B;

[0011] At least two circulation systems, each of which is provided with a second heat exchange device, and each of which is connected to its corresponding circulation branch.

[0012] Preferably, the circulation branches are provided with two, namely the first circulation branch and the second circulation branch; the circulation systems are provided with two, namely the first circulation system and the second circulation system, and the second circulation system is located at the end of the circulation heat exchange path;

[0013] The first circulation branch is used for exchanging heat with the hot end of the first circulation system, and the second circulation branch is connected to the second circulation system and is used for exchanging heat with the cold end of the first circulation system.

[0014] Preferably, the first circulation system comprises a first heat exchange branch for exchanging heat with the first circulation branch, a second heat exchange branch for exchanging heat with the second circulation branch and connected to the first heat exchange branch, the second circulation branch and the second heat exchange branch form an evaporator, and the second heat exchange device corresponding to the first circulation system is the evaporator;

[0015] The second circulation system includes a third heat exchange branch connected to the second circulation branch, and the second heat exchange device corresponding to the second circulation system is a heat exchanger including the third heat exchange branch.

[0016] Preferably, the first circulation branch comprises a first end connected to the outlet end A, a second end connected to the return end B, and a heat exchange portion connected between the first end and the second end, the heat exchange portion being used for exchanging heat with the first heat exchange branch;

[0017] The first heat exchange branch has a chamber in which a cooling medium flows, and the flow direction of water in the heat exchange portion is opposite to the flow direction of the cooling medium in the first heat exchange branch.

[0018] Preferably, the second circulation system comprises a water supply branch and a water return branch connected thereto;

[0019] The outlet port A is connected to the water supply branch through the second circulation branch;

[0020] The water supply branch is connected to the water return branch through the third heat exchange branch, and the water return branch is connected to the return port B.

[0021] Preferably, the outlet port A is connected to the second circulation branch through a pre-heat exchange branch, and the second circulation branch is connected to the water supply branch;

[0022] The water return branch is connected to the return port B through a heat recovery branch, and the pre-heat exchange branch and the heat recovery branch form a regenerator.

[0023] Preferably, it also includes a circulating air path, the circulating air path includes a return air branch and an air supply branch, the return air branch is connected to the air supply branch via a heat exchange air path, and the heat exchange air path and the third heat exchange branch form a heat exchanger;

[0024] The return air branch is provided with a fan, and the fan is used to send the return air in the return air branch into the heat exchanger.

[0025] Preferably, the first circulation system includes a circulation power element arranged between the first heat exchange branch and the second heat exchange branch, and the circulation power element is used to realize the circulation flow of the cooling medium between the first heat exchange branch and the second heat exchange branch.

[0026] Preferably, the first heat exchange device is a condenser formed by the first heat exchange branch and the first circulation branch.

[0027] Preferably, the first circulation system includes a semiconductor refrigerator, the hot end of the semiconductor refrigerator and the first circulation branch form the first heat exchange device, and the cold end of the semiconductor refrigerator and the second circulation branch form the evaporator.

[0028] The temperature control system provided by the present invention comprises an outlet port A and a return port B, wherein the outlet port A and the return port B are respectively used to connect two ports of a cold source system having circulating power, and a first heat exchange device is arranged between the outlet port A and the return port B; the temperature control system provided by the present invention comprises at least two circulating branches, wherein the inlets of the circulating branches are both connected to the outlet port A, and the outlets are both connected to the return port B, and the circulating flow of the cold source in the circulating branches is realized through the cold source system; in at least two circulating systems, the circulating system is provided with a second heat exchange device, and the circulating system is connected to the corresponding circulating branch, and a cold source is provided for the circulating system through the circulating branch, and a cooling effect is provided through the cold capacity of the cold source.

[0029] The beneficial effect of the present invention is that by utilizing a cold source system with circulating power to provide a cold source to at least two circulating branches, they can exchange heat with the circulating system respectively, without the need to arrange power devices of the corresponding circulating system one by one, so that the volume of the entire temperature control system is effectively reduced, the system reliability is improved, the system operating energy consumption is reduced, and the use cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 1 A schematic diagram of the structure of the temperature control system provided by the present invention;

[0032] Figure 2 Another structural schematic diagram of the temperature control system provided by the present invention.

[0033] Figure 1-Figure 2 , the reference numerals include:

[0034] 1-cold source system; 2-first circulation system; 3-second circulation system; 4-temperature control object; 5-first heat exchange device; 6-evaporator; 7-heat exchanger; 8-regenerator;

[0035] 101-first circulation branch; 102-second circulation branch; 103-preheat exchange branch;

[0036] 201-first heat exchange branch; 202-second heat exchange branch; 203-circulation power element; 204-electronic bypass valve; 205-drying filter; 206-liquid pipe solenoid valve; 207-liquid indicator mirror; 208-electronic expansion valve; 209-high pressure switch; 210-exhaust temperature sensor; 211-intake pressure sensor; 212-intake temperature sensor;

[0037] 301-third heat exchange branch; 302-water supply branch; 303-return branch; 304-heat recovery branch; 305-circulation branch; 306-water heater; 307-third detection element; 308-return water thermometer; 309-flow meter; 310-return water pressure detector; 311-electric proportional three-way valve;

[0038] 401 - heat exchange air path; 402 - return air branch; 403 - supply air branch; 404 - first detection element; 405 - second detection element; 406 - main control electric heating element; 407 - fan; 408 - fourth detection element. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The core of the present invention is to provide a temperature control system with small size, low system operation energy consumption and low cost. The temperature control system provided by the present invention is applied to the field of ultra-high precision micro-size processing and measurement to provide an accurate and stable temperature control environment.

[0041] The outlet port A and the return port B are used to respectively connect the two ports of the cold source system 1 having circulating power, and the two ports here actually correspond to the outlet and the inlet of the cold source system 1. The cold source system 1 has circulating power, and the circulating power can make the cold source circulate between the outlet port A, the circulation branch, the return port B, and the cold source system 1 to maintain the coldness of the cold source in the circulation branch.

[0042] The cold source system 1 is specifically a system that can provide circulating power, such as a process water cooling system, such as a circulating water system.

[0043] Taking a specific implementation as an example, the cold source system 1 is a process water cooling system, which specifically includes a cold source unit. The cold source unit is a structure for providing a cold source. The cold source can specifically be water, coolant, helium, liquid nitrogen, etc., which can be flexibly selected and changed according to actual requirements.

[0044] The process water cooling system also includes a power component, which is a component of the process water cooling system itself. The power component can provide a cold source for at least two circulation branches, and the cold source can circulate in the circulation branches through the power component. For example, if the cold source is water or a mixed liquid of water and other substances, the power component can be set as a pump.

[0045] The temperature control system also includes at least two circulation branches, the inlet of each circulation branch is connected to the outlet end A, and the outlet of each circulation branch is connected to the return end B. If the cold source is cooling water, the outlet end A is actually the water outlet end, and the return end is the return water end. Under the action of the circulation power of the cold source system 1, the cooling water can flow out from the outlet end A to the circulation branch, and the cooling water after heat exchange in the circulation branch flows back to the return end B, thereby ensuring the coldness of the cold source in the circulation branch. It should be noted here that at least two circulation branches are independently set, and the two circulation branches have no intersection and will not produce a cold and heat exchange process.

[0046] A first heat exchange device 5 is provided between the outlet port A and the return port B. The first heat exchange device 5 is specifically a condenser, which is used to convert the cold source in the high-temperature and high-pressure gas state into a liquid state to absorb the heat of the high-temperature and high-pressure gas, so that the cold source becomes liquid and the temperature is lowered, and continues to participate in the circulation.

[0047] In the above process, at least two circulation branches refer to two or more circulation branches, and multiple means three or more. The number of circulation heat exchange rounds to be set depends on the actual application scenario. If multiple cold and hot exchanges are required to improve the stability and reliability of temperature control, multiple circulation branches can be set.

[0048] The temperature control system also includes at least two circulation systems, each of which is provided with a second heat exchange device, and the circulation system is connected to the corresponding circulation branches.

[0049] If three circulation systems are set, the circulation heat exchange path is from the first-stage circulation to the second-stage circulation to the third-stage circulation to perform the cold and heat exchange process in sequence, that is, the circulation heat exchange path is 1-2-3, and the circulation system at the end of the circulation heat exchange path is the circulation system corresponding to the third-stage circulation.

[0050] For example, if three circulation systems are provided, one of the three circulation systems may be connected to the corresponding circulation branch, and the remaining two may exchange heat with the corresponding circulation branch; or two of the three circulation systems may be connected to the corresponding circulation system, and the remaining one may exchange heat with the corresponding circulation branch. The above is only an example, and does not limit the specific implementation method in the combination form.

[0051] In a specific embodiment, the circulation branch is connected to its corresponding circulation system. In this case, the circulating cold source in the circulation branch is directly provided to the circulation system. This cold source exchanges heat with the second heat exchange device of the circulation system to obtain better cooling capacity. The cold source is then applied to the heat and cold exchange of the temperature-controlled object 4 to ensure a better heat exchange effect.

[0052] The temperature control object 4 here can be a device or an environment, and is not limited to this application scenario. The environment is also not limited to a factory, office, or classroom environment, and can be flexibly applied to any place that requires cooling.

[0053] Taking a specific implementation as an example, the temperature control object 4 has a circulating air path connected to the temperature control environment, and the circulation system at the end of the circulating heat exchange performs heat exchange with the circulating air path to achieve the effect of regulating the temperature of the temperature control environment. The temperature control environment is specifically the ambient temperature in any scenario requiring high-precision temperature control, without limiting the specific application scenario.

[0054] Specific regulation can be specifically to control the start and stop of the circulation system, control the circulation speed of the circulation system, control the start and stop of the heating or cooling devices in the circulation system, etc. according to the ratio of the actual temperature of the temperature control environment to the preset temperature.

[0055] The actual temperature of a specific temperature-controlled environment refers to the temperature value of the return air section of the temperature-controlled environment, while the regulated temperature value refers to the air inlet section entering the temperature-controlled environment.

[0056] In this embodiment, the cold source system itself is utilized to have the characteristic of circulating power, so as to provide a cold source to at least two circulation branches, so that they can exchange heat with the circulation system respectively, without arranging the power components of the corresponding circulation system one by one, so that the volume of the entire temperature control system is effectively reduced, the system reliability is improved, the system operation energy consumption is reduced, and the use cost is reduced.

[0057] Based on the above embodiments, please refer to Figure 1 , Figure 2 Two circulation branches are specifically provided, namely a first circulation branch 101 and a second circulation branch 102; the first circulation branch 101 and the second circulation branch 102 are both connected to the outlet A and the return B, that is, cooling water can circulate in the first circulation branch 101 and the second circulation branch 102 to perform a circulation cooling operation at the hot end of the first circulation system 2.

[0058] Two circulation systems are provided, and the two circulation systems are specifically a first circulation system 2 and a second circulation system 3. Of the two circulation systems, the second circulation system 3 is located at the end of the circulation heat exchange path, that is, the second circulation system 3 is used to control the temperature of the temperature control environment through heat exchange.

[0059] Specifically, the first circulation branch 101 is used for heat exchange with the hot end of the first circulation system 2. The hot end here refers to the cooling medium in a gaseous state and at a high temperature and high pressure. The circulating cold source in the first circulation branch 101 is used to exchange heat with the first heat exchange device 5 and the first circulation system 2. Specifically, the circulating cold source in the first circulation branch 101 provides coldness for the cooling medium in the first circulation system 2 to liquefy it, and the liquefied cooling medium continues to participate in the circulation of the first circulation system 2. Continuing to participate in the circulation here means that the liquid cooling medium will exchange heat with the heat of the second circulation system 3 to vaporize and form a gaseous state. The gaseous cooling medium will then become a liquid after heat exchange with the first heat exchange device 5, and the cycle will continue. In this way, the cold source and the cooling medium are of different types, such as the cold source is cooling water and the cooling medium is a refrigerant, and the refrigerant can switch between a gaseous state and a liquid state.

[0060] The second circulation branch 102 is connected to the second circulation system 3 and is used for heat exchange with the cold end of the first circulation system 2, and the cold end of the first circulation system 2 is a cooling medium in a liquid state. The cold source circulating in the second circulation branch 102 is directly provided to the second circulation system 3, and the cold source provided to the second circulation system 3 is firstly obtained by heat exchange with the cooling medium (refrigerant) with cold capacity circulating at the cold end of the first circulation system 2, and then circulated in the second circulation system 3, so as to further ensure the effect of heat and cold exchange of the second circulation system 3.

[0061] The cold source after heat exchange with the cooling medium in the second circulation system 3 enters the circulation, and exchanges heat with the circulating air path connected to the temperature control object 4, so as to perform a temperature reduction and control operation on the circulating air path.

[0062] In this embodiment, the first circulation system 2 and the second circulation system 3 both utilize the cold capacity of the cold source provided by the cold source system 1 to perform heat exchange, and share a cold source system 1, which can reduce the use of power parts used to provide circulation power, reduce the volume of the entire temperature control system, reduce energy consumption, improve the operating reliability of the temperature control system, and reduce costs.

[0063] Based on any of the above embodiments, please refer to Figure 1 The first circulation system 2 includes a first heat exchange branch 201 and a second heat exchange branch 202 , and the second circulation system 3 includes a third heat exchange branch 301 .

[0064] The first circulation branch 101 and the second circulation branch 102 are both connected to the outlet port A and the return port B. Taking the example that the cold sources in the first circulation branch 101 and the second circulation branch 102 are both cooling water, the cooling water can circulate in the first circulation branch 101 and the second circulation branch 102 to perform a circulation cooling operation; further, the first circulation system 2 includes a first heat exchange branch 201, and specifically, the cooling water of the first circulation branch 101 passes through the first heat exchange device 5 to convert the gaseous refrigerant in the first heat exchange branch 201 of the first circulation system 2 into liquid state to achieve a heat exchange effect.

[0065] The first heat exchange branch 201 is connected to the second heat exchange branch 202, and the second heat exchange branch 202 is used for heat exchange with the second circulation branch 102. The heat exchange here specifically refers to the heat exchange between the cooling water circulating in the second circulation branch 102 and the liquid refrigerant in the second heat exchange branch 202, so as to reduce the temperature of the cooling water in the second circulation branch 102 and make it participate in the third circulation system.

[0066] Among them, the second heat exchange branch 202 and the second circulation branch 102 form an evaporator 6, and the second heat exchange device corresponding to the first circulation system 2 is the evaporator 6. After the liquid refrigerant in the second heat exchange branch 202 exchanges heat with the cooling water circulating in the second circulation branch 102, the refrigerant absorbs heat in the evaporator 6 area and is converted into a gaseous state to form heat exchange between the second heat exchange branch 202 and the second circulation branch 102.

[0067] The second circulation system 3 includes a third heat exchange branch 301 connected to the second circulation branch 102. The second heat exchange device corresponding to the second circulation system 3 is a heat exchanger 7 including the third heat exchange branch 301. Here, the heat exchanger 7 also includes a circulation loop for exchanging heat with the third heat exchange branch 301. The specific application of the circulation loop to which temperature control environment or object is not limited here. The third heat exchange branch 301 is connected to the second circulation branch 102. Based on the fact that the second circulation branch 102 has exchanged heat in the evaporator 6 area and formed cooling water with cold capacity, the effect of temperature control can be achieved by exchanging heat with the circulation loop through this cold capacity.

[0068] In this embodiment, by utilizing the circulating power of the cold source system 1 and simplifying the circulation system architecture of the second circulation system 3, the number of key components and the system volume can be significantly reduced, and greater advantages can be obtained in terms of energy saving, cost and reliability. The components reduced in the second circulation system 3, such as water pumps and water tanks, are eliminated, and the volume of the entire system is greatly reduced, thereby significantly improving the system reliability, reducing costs, and reducing the energy consumption of system operation.

[0069] In this embodiment, the cooling medium flow directions of the second circulation branch 102 and the second heat exchange branch 202 can be the same or opposite, and the cooling medium flow directions of the first heat exchange branch 201 and the first circulation branch 101 can be the same or opposite. The above cooling medium, i.e., refrigerant or water or other cooling medium, can circulate in the same or opposite flow directions to ensure the heat exchange effect and the temperature control effect of the rear-end temperature control object 4.

[0070] In this embodiment, when the cooling medium in the first circulation system 2 is refrigerant, the first circulation system 2 also includes a drying filter 205, a liquid pipe solenoid valve 206, a liquid indicator mirror 207, and an electronic expansion valve 208 located between the first heat exchange branch 201 and the second heat exchange branch 202; the drying filter 205 is used to filter and purify the refrigerant in the first circulation system 2; the liquid indicator mirror 207 is used to determine the quality and water content of the refrigerant in the first circulation system 2; the liquid pipe solenoid valve 206 is used to control the on-off of the branch; the electronic expansion valve 208 is used to adjust the amount of refrigerant supplied to the second heat exchange branch 202.

[0071] Furthermore, the viscosity of the refrigerant is high when the ambient temperature is low. A small amount of refrigerant is first passed through the bypass branch where the electronic bypass valve 204 of the first heat exchange device 5 (condenser) is located, so that the entire refrigeration cycle is running. The temperature of the entire system will gradually rise, and the viscosity of the refrigerant will decrease, ensuring normal low-temperature refrigeration.

[0072] Based on any of the above embodiments, the first circulation branch 101 includes a first end connected to the outlet port A, a heat exchange portion, and a second end connected to the return port B, and the heat exchange portion is used to exchange heat with the first heat exchange branch 201. Figure 1 and Figure 2 In general, the heat exchange portion is the portion that forms the condenser together with the first heat exchange branch 201 .

[0073] The first heat exchange branch 201 has a chamber in which a cooling medium flows, and the water flow in the heat exchange portion is opposite to the cooling medium flow in the first heat exchange branch 201. Figure 1 As shown by the middle arrow, the water in the heat exchange part flows downward, and the cooling medium in the first heat exchange branch 201 flows upward. Through the up-and-down relative flow, the cooling capacity of the refrigerant in the first circulation system 2 is maintained through the circulating flow of cooling water.

[0074] In this embodiment, a compressor may be provided in the first circulation system 2, through which the refrigerant in a gaseous state after heat exchange with the cooling water in the second circulation system 3 in the evaporator 6 is pressurized to form a high-temperature and high-pressure gas, so that the refrigerant in a high-temperature and high-pressure state enters the first heat exchange device 5 to exchange heat with the cooling water in the first circulation branch 101 to form a liquid state; then, the liquid refrigerant flows back to the evaporator 6 along the refrigeration system pipelines and various valve components, completing a complete cycle.

[0075] Based on any of the above embodiments, please refer to Figure 1 , Figure 2 The second circulation system 3 includes a water supply branch 302 and a return branch 303 connected thereto; the outlet port A is connected to the water supply branch 302 through the second circulation branch 102; the water supply branch 302 is connected to the return branch 303 through the third heat exchange branch 301, and the return branch 303 is connected to the return port B.

[0076] The cooling medium of the second circulation system 3 is the cooling water provided by the second circulation branch 102. Under the external circulation power provided by the cold source system 1 itself, the cooling water first flows from the outlet port A through the evaporator 6 to be cooled, and then is transported to the position of the third heat exchange branch 301 through the water supply branch 302 to absorb the heat of the air in the circulating air path, and after reducing the air temperature in the circulating air path, it flows back to the return port B through the return water branch 303 to complete the whole cycle.

[0077] On the basis of any of the above embodiments, the outlet port A is connected to the second circulation branch 102 through the pre-heat exchange branch 103, and the second circulation branch 102 is connected to the water supply branch 302;

[0078] The return water branch 303 is connected to the return port B through the heat recovery branch 304 , and the pre-heat exchange branch 103 and the heat recovery branch 304 form a regenerator 8 .

[0079] Please refer to Figure 2 A regenerator 8 for heat recovery is connected in series on the water supply branch 302 and the return branch 303 of the second circulation system 3. The heat recovery branch 304 contains hot water, and the cooling water in the pre-heat exchange branch 103 can be heat exchanged in the regenerator 8. After the heat exchange, the regenerator is heat exchanged with the liquid refrigerant in the second heat exchange branch 202 in the evaporator 6 to vaporize the liquid refrigerant. By setting the regenerator 8, the heat of the heat recovery branch 304 can be utilized, thereby achieving the purpose of energy saving and improving the energy saving efficiency of the entire temperature control system.

[0080] Based on any of the above embodiments, please refer to Figure 1 , Figure 2 The first circulation system 2 includes a circulation power element 203 disposed between the first heat exchange branch 201 and the second heat exchange branch 202 , and the circulation power element 203 is used to realize the circulation flow of the cooling medium between the first heat exchange branch 201 and the second heat exchange branch 202 .

[0081] For example, if the cooling medium is a refrigerant, the circulating power element 203 is a compressor. After the gaseous refrigerant is compressed by the compressor, it is sent to the first heat exchange branch 201, and releases heat to the first circulation branch 101 in the condenser to complete the heat exchange. After the heat exchange, it becomes liquid and is sent to the second heat exchange branch 202 to exchange heat with the cooling water in the second circulation branch 102 in the evaporator 6.

[0082] Based on any of the above embodiments, the first heat exchange device 5 is a condenser formed by the first heat exchange branch 201 and the first circulation branch 101. The cold source in the state of high-temperature and high-pressure gas is converted into liquid through the condenser to absorb the heat of the high-temperature and high-pressure gas, so that the cold source becomes liquid and the temperature is lowered, and continues to participate in the circulation.

[0083] Based on any of the above embodiments, the first circulation system 2 includes a semiconductor refrigerator, the hot end of the semiconductor refrigerator and the first circulation branch 101 form a first heat exchange device 5, the first heat exchange device 5 is a condenser, and the cold end of the semiconductor refrigerator and the second circulation branch 102 form an evaporator 6.

[0084] In this embodiment, the hot end and the cold end of the semiconductor refrigerator absorb heat and release heat respectively. Specifically, the semiconductor refrigerator includes a hot end heat sink embedded with a steel pipe, a cold end heat sink, and a semiconductor refrigeration sheet installed between the two heat sinks. The medium of the pipelines in the hot end heat sink and the cold end heat sink is liquid. The liquid of the hot end heat sink exchanges heat with the first circulation branch 101, and the liquid of the cold end heat sink exchanges heat with the second circulation branch 102, which is equivalent to the evaporator 6. The two ends absorb heat and release heat respectively, thereby achieving the purpose of refrigeration.

[0085] Based on any of the above embodiments, please refer to Figure 1 , Figure 2 The circulating air path includes a return air branch 402 and an air supply branch 403. The return air branch 402 is connected to the air supply branch 403 through the heat exchange air path 401. The heat exchange air path 401 and the third heat exchange branch 301 form a heat exchanger 7. A fan 407 is provided on the return air branch 402. The fan 407 is used to send the return air in the return air branch 402 into the heat exchanger 7.

[0086] In the temperature-controlled object 4, the return air branch 402 sends the airflow in the temperature-controlled environment or object to the heat exchanger 7 to lower the temperature. Then, driven by the fan 407, the airflow passes through auxiliary devices such as the main control electric heating element 406, and the temperature control accuracy is further improved to meet the target temperature control accuracy requirement. The airflow is then transported to the temperature-controlled environment or object through the supply air branch 403, ultimately achieving the application purpose.

[0087] The main control electric heating element 406 is mainly used to improve the accuracy of airflow temperature control of the temperature control object 4. This is based on the fact that after the airflow is sent to the heat exchanger 7 to reduce the temperature, the gas is within the temperature difference range, and the temperature control accuracy needs to be further improved through the operation of the main control electric heating element 406.

[0088] In this embodiment, temperature and humidity detection elements, pressure detection elements, etc. may be provided in the air supply branch 403 and the air return branch 402 to achieve the effect of monitoring the operation status.

[0089] Based on any of the above embodiments, the return air branch 402 is provided with a first detection element 404 for detecting the return air temperature and humidity, the supply air branch 403 is provided with a second detection element 405 for detecting the supply air temperature and humidity, and the water supply branch 302 is provided with a third detection element 307 for detecting the water supply temperature and humidity.

[0090] A main control electric heating element 406 is also provided on the air supply branch 403, and a water heater 306 is provided on the water supply branch 302. The controller is used to control the operation of the main control electric heating element 406 and the water heater 306 according to the detection values ​​of the first detection element 404, the second detection element 405, and the third detection element 307, so as to improve the control accuracy and stability of the temperature control system and ensure the precise and stable regulation of the temperature of the temperature control environment.

[0091] For the temperature-controlled object 4, a fourth detection element 408 for detecting air supply pressure / speed is provided on the air supply branch 403, and the fourth detection element 408 is connected to the controller signal to monitor the air supply pressure and air supply speed of the regulated airflow.

[0092] For the second circulation system 3, the return water branch 303 is also provided with a flow meter 309 and a return water thermometer 308 for detecting the return water flow rate and return water temperature respectively. The flow meter 309 and the return water thermometer 308 are connected to the controller signal to realize the monitoring of the return water flow rate and temperature. The water supply branch 302 is provided with an electric proportional three-way valve 311, and the electric proportional three-way valve 311 is controlled to be half-open or fully open according to the detection result of the flow meter 309 to ensure the horizontal circulation effect of the cooling water in the entire second circulation system 3. The circulation branch 305 and the third heat exchange branch 301 are arranged in parallel, and the cooling water can flow to the return water branch 303 through the circulation branch 305 by controlling the electric proportional three-way valve 311 to be fully opened. In addition, the return water branch 303 is also provided with a return water pressure detector 310, and the return water pressure detector 310 is connected to the controller signal to realize the monitoring of the return water pressure.

[0093] For the first circulation system 2, a high pressure switch 209 and an exhaust temperature sensor 210 are also provided on the first heat exchange branch 201, and an intake temperature sensor 212 and an intake pressure sensor 211 are provided between the second heat exchange branch 202 and the circulation power element 203.

[0094] The above monitoring can realize effective monitoring of the entire operating status of the temperature control system, making it easy to understand the entire operating process. If any abnormal situation occurs, it can be notified immediately to ensure the reliability of control.

[0095] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0096] The above is a detailed introduction to a temperature control system provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A temperature control system, characterized in that: include: The outlet port A and the return port B are used to respectively connect two ports of a cold source system (1) having circulating power, and a first heat exchange device (5) is provided between the outlet port A and the return port B; At least two circulation branches, whose inlets are both connected to the outlet port A, and whose outlets are both connected to the return port B; At least two circulation systems, each of which is provided with a second heat exchange device, and each of which is connected with the corresponding circulation branch to perform heat exchange.

2. The temperature control system according to claim 1, characterized in that: The circulation branches are provided with two, namely a first circulation branch (101) and a second circulation branch (102); the circulation systems are provided with two, namely a first circulation system (2) and a second circulation system (3), and the second circulation system (3) is located at the end of the circulation heat exchange path; The first circulation branch (101) is used for exchanging heat with the hot end of the first circulation system (2), and the second circulation branch (102) is connected to the second circulation system (3) and is used for exchanging heat with the cold end of the first circulation system (2).

3. The temperature control system according to claim 2, characterized in that: The first circulation system (2) comprises a first heat exchange branch (201) for exchanging heat with the first circulation branch (101), and a second heat exchange branch (202) for exchanging heat with the second circulation branch (102) and connected to the first heat exchange branch (201), the second circulation branch (102) and the second heat exchange branch (202) forming an evaporator (6), and the second heat exchange device corresponding to the first circulation system (2) is the evaporator (6); The second circulation system (3) comprises a third heat exchange branch (301) connected to the second circulation branch (102), and the second heat exchange device corresponding to the second circulation system (3) is a heat exchanger (7) comprising the third heat exchange branch (301).

4. The temperature control system according to claim 3, characterized in that: The first circulation branch (101) comprises a first end connected to the outlet end A, a second end connected to the return end B, and a heat exchange portion connected between the first end and the second end, the heat exchange portion being used for exchanging heat with the first heat exchange branch (201); The first heat exchange branch (201) has a chamber in which a cooling medium flows, and the flow direction of the water in the heat exchange portion is opposite to the flow direction of the cooling medium in the first heat exchange branch (201).

5. The temperature control system according to claim 4, characterized in that: The second circulation system (3) comprises a water supply branch (302) and a water return branch (303) connected thereto; The outlet port A is connected to the water supply branch (302) via the second circulation branch (102); The water supply branch (302) is connected to the water return branch (303) via the third heat exchange branch (301), and the water return branch (303) is connected to the return port B.

6. The temperature control system according to claim 4, characterized in that: The second circulation system (3) comprises a water supply branch (302) and a water return branch (303) connected thereto; The outlet port A is connected to the second circulation branch (102) via a pre-heat exchange branch (103), and the second circulation branch (102) is connected to a water supply branch (302); The water return branch (303) is connected to the return port B via a heat recovery branch (304), and the pre-heat exchange branch (103) and the heat recovery branch (304) form a regenerator (8).

7. The temperature control system according to claim 5 or 6, characterized in that: It also includes a circulating air path, the circulating air path including a return air branch (402) and an air supply branch (403), the return air branch (402) being connected to the air supply branch (403) via a heat exchange air path (401), and the heat exchange air path (401) and the third heat exchange branch (301) forming the heat exchanger (7); The return air branch (402) is provided with a fan (407), and the fan (407) is used to send the return air in the return air branch (402) into the heat exchanger (7).

8. The temperature control system according to claim 7, characterized in that: The first circulation system (2) comprises a circulation power element (203) arranged between the first heat exchange branch (201) and the second heat exchange branch (202), wherein the circulation power element (203) is used to realize the circulation flow of the cooling medium between the first heat exchange branch (201) and the second heat exchange branch (202).

9. The temperature control system according to claim 8, characterized in that: The first heat exchange device (5) is a condenser formed by the first heat exchange branch (201) and the first circulation branch (101).

10. The temperature control system according to claim 7, characterized in that: The first circulation system (2) comprises a semiconductor refrigerator, wherein the hot end of the semiconductor refrigerator and the first circulation branch (101) form the first heat exchange device (5), and the cold end of the semiconductor refrigerator and the second circulation branch (102) form the evaporator (6).

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