Rapid cooling system

Abstract

The present invention discloses a rapid cooling system. An internal circulation pipeline is formed by a refrigeration component, a first circulation pump, and a liquid storage tank in a refrigeration system, so as to pre-store a low-temperature fluid in the liquid storage tank; the internal circulation pipeline is disconnected, the pipeline externally connected to the refrigeration system is opened, and the low-temperature fluid in the liquid storage tank is used for external refrigeration through the externally connected pipeline. In this solution, an internal circulation pipeline is formed in the refrigeration system, the fluid can be cooled in advance and stored in the liquid storage tank, and the internal circulation pipeline is disconnected to cool externally, greatly reducing the cooling time and meeting the requirement of rapid cooling.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control, and particularly to an emergency cooling system. Background Art

[0002] High and low temperature control devices are widely used due to their characteristics of being applicable to both high temperature working conditions and low temperature working conditions. Common high and low temperature control devices include components such as a circulation pump, a heating component, and a refrigeration component. When refrigeration is required, a fluid such as heat-conducting oil needs to flow through the heating component or the refrigeration component, and the fluid after heating or cooling enters the equipment to be temperature-controlled (such as a reaction kettle) to adjust the temperature. In some fields with high requirements for fast cooling, the refrigeration speed cannot meet the demand and needs to be improved. Summary of the Invention

[0003] To solve the above at least one technical defect, the present invention provides the following technical solutions:

[0004] This application document discloses an emergency cooling system.

[0005] An internal circulation pipeline is formed by the refrigeration component, circulation pump one, and liquid storage tank in the refrigeration system, so as to pre-store low-temperature fluid in the liquid storage tank.

[0006] The internal circulation pipeline is disconnected, the pipeline externally connected to the refrigeration system is opened, and the low-temperature fluid in the liquid storage tank is used for external refrigeration through the externally connected pipeline.

[0007] The refrigeration component is provided with an externally connected pipeline one, the circulation pump one is provided with an externally connected pipeline two, and the liquid storage tank is provided with an externally connected pipeline three; the circulation pump is communicated with the refrigeration component, the pipeline one and the pipeline two are respectively communicated with the liquid storage tank and are respectively controlled to be opened and closed by valve three and valve twelve, and the pipeline three is communicated with the pipeline one through a bypass branch and is controlled to be opened and closed by valve thirteen.

[0008] By opening valve three, valve twelve, and valve thirteen to make the corresponding pipelines unblocked, the refrigeration component, circulation pump one, and liquid storage tank are synchronously formed into an internal circulation pipeline, so as to pre-store low-temperature fluid in the liquid storage tank. When valve twelve and valve thirteen are disconnected, the internal circulation pipeline is disconnected, and the low-temperature fluid in the liquid storage tank is used for external refrigeration through pipeline one.

[0009] This solution forms an internal circulation pipeline in the refrigeration system, which can cool the fluid in advance and store it in the liquid storage tank. Disconnecting the internal circulation pipeline can achieve external cooling, greatly reducing the cooling time and meeting the requirement of emergency cooling.

[0010] In this solution, an internal circulation pipeline is formed by a multi-pipeline layout design and in cooperation with corresponding valves for cold storage, or the internal circulation pipeline is disconnected to externally transport low-temperature fluid, thereby rapidly cooling the target to be cooled, and at the same time facilitating the recovery of the fluid.

[0011] Further, valves I, IV, and II for controlling on / off are provided on pipeline I, pipeline II, and pipeline III respectively. The connection position of the bypass branch and pipeline I is behind the connection position of pipeline I and the liquid storage tank, and valve I is behind the connection position of the bypass branch and pipeline I. Valve II is behind the connection position of the bypass branch and pipeline III. By controlling each valve, it is more convenient to form an internal circulation pipeline, or externally transport low-temperature fluid, or recover fluid.

[0012] Further, the refrigeration assembly includes a compressor, an oil separator, a finned heat exchanger, and a plate heat exchanger. The compressor is respectively connected to the plate heat exchanger and the oil separator, and the plate heat exchanger is connected to circulation pump I. The finned heat exchanger is respectively connected to the oil separator and the plate heat exchanger, and the plate heat exchanger is connected to pipeline I.

[0013] Further, it further includes a heating system for external heating, which can be adjusted for high and low temperature control according to requirements. The application of external heating can be before and after storing low-temperature fluid, or before and after external refrigeration, according to requirements.

[0014] Further, the heating system includes a heating component, circulation pump II, and expansion tank. Pipeline IV for external connection is provided on the heating component and is controlled for on / off by valve IX. Pipelines V and VI for external connection are provided on circulation pump II. Pipeline VI is respectively connected to the heating component and the expansion tank through connecting pipeline I and connecting pipeline II and is controlled for on / off by valves VII and VI respectively. Connection branches I and II are provided on pipeline V. Valve VIII is provided on connection branch I to control on / off. The front of the position where valve VIII is located is connected to the expansion tank, and a check valve is provided on the pipeline connecting the two to control the flow direction. The expansion tank can balance pressure fluctuations and improve the stability of the system. The design of multiple pipelines and valves facilitates external heating and fluid recovery.

[0015] Further, connection branch I is connected to pipeline III for external connection of the liquid storage tank and the on / off of connection branch I is controlled by valve X. Vent pipeline I is provided on connection branch I and vent pipeline I is connected to the expansion tank. An exhaust valve is provided on vent pipeline I to control on / off, which can exhaust and relieve pressure to improve safety.

[0016] Further, it further includes a reaction kettle. The flow ports of the temperature control chamber in the reaction kettle are connected to pipeline IV, connection branch II, pipeline I for external connection of the refrigeration assembly, and pipeline II for external connection of circulation pump I. Valve XI for controlling on / off is provided on connection branch II. The temperature of the reaction kettle is adjusted for high and low temperature by the refrigeration system and the heating system, so as to meet the usage requirements.

[0017] Furthermore, an air vent pipeline II is arranged on the temperature control cavity of the reactor, and the air vent pipeline II is communicated with a pipeline III that is externally communicated with the liquid storage tank. A valve V is arranged on the air vent pipeline II to control the on-off of the air vent pipeline II and the outside, facilitating the discharge of fluid.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The present invention pre-cools with an internal circulation pipeline and then rapidly cools externally according to requirements. The temperature can be accurately adjusted within a short time, the response speed is improved, and the application field is expanded.

[0020] 2. The present invention integrates a refrigeration system and a heating system, and can adjust the high and low temperatures according to requirements, meeting diverse usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic connection structure diagram of the refrigeration system, heating system and reactor in Embodiment 1;

[0023] Among them, the reference numerals are:

[0024] 1. Refrigeration system; 2. Heating system; 3. Reactor; 100. Liquid storage tank; 101. Circulation pump I; 102. Compressor; 103. Oil separator; 104. Dry filter; 105. Finned heat exchanger; 106. Plate heat exchanger; 107. Pipeline I; 108. Pipeline II; 109. Pipeline III; 110. Bypass branch; 111. Valve XIII; 112. Valve XII; 113. Valve I; 114. Valve III; 115. Valve II; 116. Air vent pipeline II; 117. Valve V; 118. Valve IV; 201. Heating component; 202. Expansion tank; 203. Circulation pump II; 204. Pipeline V; 205. Connecting pipeline II; 206. Valve VI; 207. Connecting pipeline I; 208. Valve VII; 209. Valve VIII; 210. Connecting branch I; 211. Connecting branch II; 212. Check valve; 213. Air vent pipeline I; 214. Exhaust valve; 215. Pipeline IV; 216. Valve X; 217. Valve IX; 218. Valve XI; 219. Pipeline VI. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present invention will be further described below with reference to the drawings and specific embodiments.

[0026] Example 1

[0027] An extremely rapid cooling system, with the refrigeration components, the first circulation pump 101, and the liquid storage tank 100 in the refrigeration system 1 forming an internal circulation pipeline, so as to pre-store low-temperature fluid in the liquid storage tank. Disconnect the internal circulation pipeline, open the pipeline externally connected to the refrigeration system 1, and use the low-temperature fluid in the liquid storage tank to refrigerate externally through the externally connected pipeline.

[0028] Taking the cooling of the reaction kettle as an example, the structural composition of the refrigeration system 1 is as Figure 1 shown. Specifically, it includes refrigeration components, the first circulation pump 101, and the liquid storage tank 100. The refrigeration components include a compressor 102, an oil separator 103, a finned heat exchanger 105, and a plate heat exchanger 106. The compressor 102 is respectively connected to the plate heat exchanger 106 and the oil separator 103 through pipelines. The plate heat exchanger 106 is connected to the first circulation pump 101 through a pipeline. The finned heat exchanger 105 is respectively connected to the oil separator 103 and the plate heat exchanger 106 through pipelines. The finned heat exchanger 105, the plate heat exchanger 106, the oil separator 103, etc. can be directly purchased from the market. In addition, a drying filter 104 can be added according to requirements. Add a drying filter 104 to the pipeline between the finned heat exchanger 105 and the plate heat exchanger 106, which helps to improve the operating stability.

[0029] An externally connected pipeline 107 is installed on the plate heat exchanger 106, and a valve 113 is installed on the pipeline 107 to control the on-off. The pipeline 107 is connected to the temperature control chamber of the reaction kettle 3, and this temperature control chamber is the sandwich chamber of the reaction kettle, used to introduce fluid to adjust the temperature inside the reaction kettle. An externally connected pipeline 109 is installed on the side wall of the liquid storage tank 100, and a valve 115 is installed on the pipeline 109 to control the on-off. An externally connected pipeline 108 is installed on the first circulation pump 101, and a valve 118 is installed on the pipeline 108 to control the on-off. The pipeline 107 and the pipeline 109 are connected by a pipeline, and this pipeline is the bypass branch 110. A valve 111 is installed on the bypass branch 110 to control the on-off. The pipeline 107 is connected to the upper region inside the liquid storage tank 100, and a valve 112 is installed on the connecting pipeline to control the on-off. The connection point between the pipeline 107 and the liquid storage tank 100 is behind the valve 113. The pipeline 108 is connected to the bottom region inside the liquid storage tank 100, and a valve 114 is installed on the connecting pipeline to control the on-off. The connection position between the bypass branch 110 and the pipeline 107 is behind the connection position between the pipeline 107 and the liquid storage tank 100, and the valve 113 is behind the connection position between the bypass branch 110 and the pipeline 107. The valve 115 is behind the connection position between the bypass branch 110 and the pipeline 109.

[0030] Before cooling the reactor, cold storage is carried out. By opening valve three 114, valve twelve 112 and valve thirteen 111, the corresponding pipeline is made unblocked. Valve two 115 disconnects pipeline three 109, and valve four 118 disconnects pipeline two 108. Meanwhile, the refrigeration component, circulation pump one and liquid storage tank form an internal circulation pipeline. Circulation pump one pumps the fluid in the liquid storage tank to the refrigeration component. The cooled fluid (i.e., low-temperature fluid) flows into the liquid storage tank 100 through valve twelve 112, and the liquid storage tank stores the low-temperature fluid for cold storage.

[0031] After that, valve twelve 112 and valve thirteen 111 are disconnected to disconnect the internal circulation pipeline, and valve one 113 is opened. Circulation pump one 101 pumps the low-temperature fluid in the liquid storage tank 100 to flow through the refrigeration component (refrigeration is not turned on), and then is input into the temperature control cavity of the reactor through pipeline one 107 for rapid cooling and refrigeration. After the reactor is cooled, valve three 114 and valve one 113 are disconnected, and valve four 118, valve twelve 112 and valve thirteen 111 are opened. The fluid in the reactor is pumped to the liquid storage tank by the circulation pump. In addition, an air vent pipeline two 116 can be installed on the temperature control cavity of the reactor. Air vent pipeline two 116 is communicated with the top area of the temperature control cavity. A valve five 117 is installed on air vent pipeline two 116 to control the connection and disconnection between air vent pipeline two 116 and the outside. Valve five 117 can be opened. Without the circulation pump, under the external atmospheric pressure and the gravity of the fluid, the fluid can flow into the liquid storage tank 100 through the pipeline where circulation pump one 101, the refrigeration component and pipeline one 107 and valve twelve 112 are located. Air vent pipeline two 116 can also be communicated with pipeline three 109 through which the liquid storage tank 100 communicates with the outside. As Figure 1 shown, it is communicated with air vent pipeline two 116 at the place of pipeline three 109 in front of valve two 115, and operations such as pressure relief and liquid discharge can be performed on the temperature control cavity.

[0032] A liquid level gauge can also be added to the liquid storage tank 100 to detect the liquid level, and a pressure gauge can be added to pipelines such as pipeline one 107, or a drain port can be added to pipeline two 108 according to requirements to facilitate the discharge of the fluid.

[0033] In this example, a heating system 2 is added at the same time. The heating system 2 heats externally. The heating system 2 and the refrigeration system 1 cooperate to adjust the high and low temperatures of the reactor, and then meet the usage requirements.

[0034] The heating system 2 preferably adopts Figure 1 the shown structure, which specifically includes a heating component 201, a circulation pump two 203 and an expansion tank 202. If the heating component 201 adopts an electric heater, of course, other types of heating mechanisms can also be selected. A pipeline four 215 for external connection is installed on the heating component 201, and its on-off is controlled by a valve nine 217. Pipeline four 215 is communicated with the flow port at the bottom area of the temperature control cavity of the reactor.

[0035] On the circulation pump two 203, externally connected pipelines five 204 and six 219 are installed. On the pipeline six 219, a connecting pipeline one 207 and a connecting pipeline two 205 are installed. It is connected to the heating component 201 through the connecting pipeline one 207 and connected to the top area inside the expansion tank 202 through the connecting pipeline two 205. A valve seven 208 is installed on the connecting pipeline two 205 to control the on-off, and a valve six 206 is installed on the connecting pipeline one 207 to control the on-off. On the pipeline five 204, a connecting branch one 210 and a connecting branch two 211 are installed. A valve eight 209 is installed on the connecting branch one 210 to control the on-off. In front of the position where the valve eight 209 is located, it is connected to the bottom area inside the expansion tank 202 through a pipeline, and a check valve 212 is installed on the pipeline where the two are connected to control the flow direction. The connecting branch two 211 is connected to the pipeline four 215 to be synchronously connected to the temperature control chamber of the reactor. A valve eleven 218 is installed on the connecting branch two 211 to control the on-off between the connecting branch two 211 and the pipeline four 215.

[0036] When the reactor needs to be heated, if the valve seven 208, valve eight 209, and valve nine 217 are opened, the circulation pump two 203 pumps the fluid in the expansion tank 202, and enters the heating component through the pipeline five 204, pipeline six 219, and connecting pipeline one 207. The heating component in the startup state heats the flowing fluid and then inputs it into the temperature control chamber of the reactor through the pipeline four 215. When heat removal is required, the valve seven 208, valve eight 209, and valve nine 217 are closed, and the valve eleven 218, valve six 206, and valve five 117 are opened. Under the external atmospheric pressure and the gravity of the fluid, the fluid in the temperature control chamber flows into the expansion tank chamber 202 through the connecting branch two 211, circulation pump two 203, and connecting pipeline two 205.

[0037] In addition, the connecting branch one 210 can also be connected to the pipeline three 109 externally connected to the liquid storage tank 100, and the on-off of the connecting branch one 210 is controlled by a valve ten 216, as Figure 1 shown. A ventilation pipeline one 213 is installed on the connecting branch one 210, and the ventilation pipeline one 213 is connected to the upper area inside the expansion tank 202. An exhaust valve 214 is installed on the ventilation pipeline one 213 to control the on-off, which can exhaust and relieve pressure to improve safety.

[0038] The connecting branch two 211 can also be connected to the pipeline two 108, for example, both are connected to the pipeline four 215, and the pipeline four 215 can be connected to the pipeline one 107, which helps to simplify the external connection structure of the reactor. And the pipeline four 215 can be connected to the connecting branch one 210 and a valve is installed to control the on-off. And a liquid level gauge can be installed on the expansion tank to detect the liquid level.

[0039] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. Rapid cooling system, characterized in that a refrigeration component, a first circulation pump (101), and a liquid storage tank (100) in the refrigeration system form an internal circulation pipeline, so as to pre-store low-temperature fluid in the liquid storage tank (100); disconnect the internal circulation pipeline, open the pipeline externally connected by the refrigeration system, and cool externally the low-temperature fluid in the liquid storage tank (100) through the externally connected pipeline; the refrigeration component is provided with a first externally connected pipeline (107), and the first circulation pump (101) is provided with a second externally connected pipeline (108), and the liquid storage tank (100) is provided with a third externally connected pipeline (109); the first circulation pump (101) is communicated with the refrigeration component, the first pipeline (107) and the second pipeline (108) are respectively communicated with the liquid storage tank (100) and the on-off of each is controlled by a third valve (114) and a twelfth valve (112), and the third pipeline (109) is communicated with the first pipeline (107) through a bypass branch (110) and the on-off is controlled by a thirteenth valve (111); make the corresponding pipelines pass through through the third valve (114), the twelfth valve (112) and the thirteenth valve (111), and synchronously form an internal circulation pipeline with the refrigeration component, the first circulation pump (101) and the liquid storage tank (100), so as to pre-store low-temperature fluid in the liquid storage tank. Disconnect the twelfth valve (112) and the thirteenth valve (111) to disconnect the internal circulation pipeline, and cool externally the low-temperature fluid in the liquid storage tank (100) through the first pipeline (107); a first valve (113), a fourth valve (118), and a second valve (115) for controlling on-off are arranged on the first pipeline (107), the second pipeline (108), and the third pipeline (109). The connection position of the bypass branch (110) and the first pipeline (107) is behind the connection position of the first pipeline (107) and the liquid storage tank (100), and the first valve (113) is behind the connection position of the bypass branch (110) and the first pipeline (107), and the second valve (115) is behind the connection position of the bypass branch and the third pipeline; the refrigeration component includes a compressor (102), an oil separator (103), a finned heat exchanger (105), and a plate heat exchanger (106). The compressor (102) is respectively communicated with the plate heat exchanger (106) and the oil separator (103), and the plate heat exchanger (106) is communicated with the first circulation pump (101). The finned heat exchanger (105) is respectively communicated with the oil separator (103) and the plate heat exchanger (106), and the plate heat exchanger (106) is communicated with the first pipeline (107).

2. The rapid cooling system according to claim 1, wherein: It also includes a heating system (2) for external heating.

3. The rapid cooling system according to claim 2, characterized in that: The heating system (2) includes a heating component (201), a second circulation pump (203), and an expansion tank (202). A fourth pipeline (215) for external connection is provided on the heating component (201), and the on-off of the pipeline is controlled by a ninth valve (217). A fifth pipeline (204) and a sixth pipeline (219) for external connection are provided on the second circulation pump (203). The sixth pipeline (219) is respectively connected to the heating component (201) and the expansion tank (202) through a first connecting pipeline (207) and a second connecting pipeline (205), and the on-off of the pipeline is respectively controlled by a seventh valve (208) and a sixth valve (206). A first connecting branch (210) and a second connecting branch (211) are provided on the fifth pipeline (204). A valve eight (209) is provided on the first connecting branch (210) to control the on-off. The position in front of the valve eight (209) is connected to the expansion tank (202), and a check valve (212) is provided on the pipeline connecting the two to control the flow direction.

4. The rapid cooling system according to claim 3, wherein: The first connecting branch (210) is connected to a third pipeline (109) for external connection of the liquid storage tank (100), and the on-off of the first connecting branch (210) is controlled by a tenth valve (216). A first ventilation pipeline (213) is provided on the first connecting branch (210), and the first ventilation pipeline (213) is connected to the expansion tank (202). An exhaust valve (214) is provided on the first ventilation pipeline (213) to control the on-off.

5. The rapid cooling system according to claim 3, wherein: It further includes a reaction kettle (3). The flow ports of the temperature control chamber in the reaction kettle (3) are connected to the fourth pipeline (215), the second connecting branch (211), a first pipeline (107) for external connection of the refrigeration component, and a second pipeline (108) for external connection of the first circulation pump (101). A valve eleven (218) for controlling the on-off is provided on the second connecting branch (211).

6. The rapid cooling system according to claim 5, wherein: A second ventilation pipeline (116) is provided on the temperature control chamber of the reaction kettle (3), and the second ventilation pipeline is connected to the third pipeline (109) for external connection of the liquid storage tank. A valve five (117) is provided on the second ventilation pipeline (116) to control the on-off of the second ventilation pipeline (116) with the outside.

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