Magnetic drive pump cooling device and conveying system

Abstract

The utility model relates to the technical field of cooling devices, and provides a magnetic drive pump cooling device and a conveying system.The magnetic drive pump cooling device comprises a magnetic drive pump body, a circulation assembly, a cooling assembly and a pressurizing impeller, the magnetic drive pump body is provided with a heat dissipation cavity, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet communicate with the heat dissipation cavity, and the circulation assembly is provided with a circulation runner used for containing a first cooling medium; one end of the circulating flow channel communicates with the liquid inlet, the other end of the circulating flow channel communicates with the liquid outlet, the cooling assembly is connected with the circulating flow channel in a heat conduction mode, and the pressurizing impeller is rotatably arranged in the heat dissipation cavity. According to the magnetic drive pump, the problems that when the magnetic drive pump works, the temperature is too high, the working efficiency of the magnetic drive pump becomes poor, and the service life of the magnetic drive pump becomes short can be solved.

Description

Technical Field

[0001] This application relates to the field of cooling device technology, and in particular to a magnetic pump cooling device and conveying system. Background Technology

[0002] A magnetic pump is a centrifugal pump that uses the principle of magnetic coupling to achieve contactless transmission.

[0003] The magnetic pump uses the mutual attraction between the permanent magnets of the outer magnetic rotor (drive end) and the inner magnetic rotor (pump end) to transmit the motor torque to the impeller without contact. The inner and outer magnetic rotors are completely sealed with a corrosion-resistant metal or ceramic isolation sleeve to isolate the pumped medium from the motor.

[0004] In related technologies, magnetic pumps have the problem of overheating during operation, which leads to decreased working efficiency and shorter service life. Utility Model Content

[0005] This application provides a magnetic pump cooling device and conveying system, which can solve the problem of excessively high temperature when the magnetic pump is working, which will lead to poor working efficiency and shortened service life of the magnetic pump.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a magnetic pump cooling device, comprising:

[0008] The magnetic pump body has a heat dissipation cavity and an inlet and an outlet connected to the heat dissipation cavity;

[0009] The circulation component has a circulation channel for containing the first cooling medium. One end of the circulation channel is connected to the liquid inlet, and the other end of the circulation channel is connected to the liquid outlet.

[0010] Cooling components, with heat-conducting connections to the circulation channel;

[0011] The booster impeller is rotatably mounted inside the heat dissipation chamber.

[0012] In some embodiments, the cooling component includes:

[0013] A heat exchanger having a first flow channel and a second flow channel, which are connected for heat exchange.

[0014] In the first and second flow channels, one of them is connected to the circulation flow channel, and the other is used to connect to the second cooling medium.

[0015] In some implementations, the loop component includes:

[0016] The first pipeline has one end connected to the inlet and the other end connected to one end of either the first flow channel or the second flow channel.

[0017] The second pipeline has one end connected to the outlet; when one end of the first pipeline is connected to one end of the first flow channel, the other end of the second pipeline is connected to the other end of the first flow channel; when one end of the first pipeline is connected to one end of the second flow channel, the other end of the second pipeline is connected to the other end of the second flow channel.

[0018] A first pressure transmitter is connected to and installed in the first pipeline;

[0019] A flow transmitter is connected to and installed in the first pipeline. Along the length of the first pipeline, the flow transmitter is located between the first pressure transmitter and the inlet.

[0020] A temperature transmitter is connected to and installed in the first pipeline. Along the length of the first pipeline, the temperature transmitter is located at the end of the first pressure transmitter away from the flow transmitter.

[0021] In some implementations, the loop component further includes:

[0022] The third pipeline has one end connected to the first pipeline and the other end used to connect to the input end of the first cooling medium.

[0023] A check valve is connected to the third pipeline;

[0024] The first shut-off valve is connected to the third pipeline. Along the length of the third pipeline, the first shut-off valve is located at the end of the check valve away from the first pipeline.

[0025] The back pressure valve is connected to the third pipeline. Along the length of the third pipeline, the back pressure valve is located at the end of the first shut-off valve away from the check valve.

[0026] In some implementations, the loop component further includes:

[0027] A metering pump is connected to the third pipeline;

[0028] The second pressure transmitter is electrically connected to the metering pump;

[0029] The first backup pipeline is connected to the third pipeline, and the first backup pipeline is connected in parallel with the metering pump.

[0030] Safety valves are installed and connected to the third pipeline and the first backup pipeline, respectively.

[0031] In some implementations, the loop component further includes:

[0032] The inlet accumulator is connected to the third pipeline;

[0033] The outlet accumulator is connected to the third pipeline. Along the length of the third pipeline, the inlet accumulator and the outlet accumulator are located at opposite ends of the metering pump.

[0034] The second shut-off valve is connected to the third pipeline. Along the length of the third pipeline, the second shut-off valve is located at the end of the inlet accumulator away from the metering pump.

[0035] A filter is connected to the third pipeline, and along the length of the third pipeline, the filter is located between the inlet accumulator and the metering pump.

[0036] In some embodiments, the cooling component further includes:

[0037] The fourth pipeline is connected to the other of the first and second flow channels when the circulation channel is connected to one of them.

[0038] The first temperature control valve is connected to the fourth pipeline and is electrically connected to the temperature transmitter.

[0039] The second backup pipeline is connected to the fourth pipeline and is connected in parallel with the first temperature control valve;

[0040] The second temperature control valve is connected to the second backup pipeline.

[0041] In some embodiments, the magnetic pump body includes:

[0042] First cylinder block;

[0043] The second cylinder is fitted inside the first cylinder. The second cylinder has an inlet and an outlet. The booster impeller is rotatably connected to the second cylinder.

[0044] An isolation sleeve is sandwiched between the first cylinder block and the second cylinder block;

[0045] The isolation sleeve is spaced out and fitted around the outside of the second cylinder to form a heat dissipation cavity.

[0046] In some embodiments, a level transmitter interface is provided on the first cylinder body for connecting an external level transmitter.

[0047] An isolation sleeve is spaced inside the first cylinder to form a leakage cavity, which is connected to the interface of the level transmitter.

[0048] Secondly, this application provides a conveying system, including a magnetic pump cooling device.

[0049] This magnetic pump cooling device, with its specific structure, incorporates a magnetic pump body that forms a heat dissipation chamber, an inlet, and an outlet. A circulation assembly allows the first cooling medium to circulate between the inlet, heat dissipation chamber, and outlet, facilitating heat exchange between the medium and the pump body within the heat dissipation chamber. This process removes some of the heat from the pump body, lowering its temperature. The cooling assembly also facilitates heat exchange with the circulating medium, further reducing its temperature. When the cooling medium returns to the heat dissipation chamber, it further reduces the pump body's temperature. Finally, a booster impeller increases the flow velocity or pressure of the cooling medium within the heat dissipation chamber, further reducing the pump body's temperature.

[0050] Therefore, this application can solve the problem of excessively high temperature during operation of magnetic pumps, which leads to decreased working efficiency and shortened service life of magnetic pumps. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 A schematic diagram of the main structure of the magnetic pump cooling device provided in the embodiments of this application.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-Magnetic pump body; 101-Heat dissipation cavity; 102-Liquid inlet; 103-Liquid outlet; 104-First cylinder; 105-Second cylinder; 106-Isolation sleeve; 107-Level transmitter interface;

[0055] 200 - Circulation assembly; 201 - First pipeline; 202 - Second pipeline; 203 - First pressure transmitter; 204 - Flow transmitter; 205 - Temperature transmitter; 206 - Third pipeline; 207 - Check valve; 208 - First shut-off valve; 209 - Back pressure valve; 210 - Metering pump; 211 - Second pressure transmitter; 212 - First backup pipeline; 213 - Safety valve; 214 - Inlet accumulator; 215 - Outlet accumulator; 216 - Second shut-off valve; 217 - Filter; 218 - First drain valve; 219 - Second drain valve;

[0056] 300 - Cooling component; 301 - Heat exchanger; 302 - Fourth pipeline; 303 - First temperature control valve; 304 - Second backup pipeline; 305 - Second temperature control valve;

[0057] 400-Boosting Impeller. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0059] In the prior art, the cavity between the inner magnetic rotor and the isolation sleeve generates a large amount of heat due to electromagnetic eddy currents. This heat will be conducted to other parts of the electromagnetic pump. When the magnetic pump operates under high temperature conditions for a long time, the working efficiency of the magnetic pump will decrease, and even damage the parts of the magnetic pump, resulting in a shorter service life.

[0060] To overcome the shortcomings of existing technologies, a magnetic pump body is designed to form a heat dissipation chamber, an inlet, and an outlet. A circulation component allows the first cooling medium to circulate between the inlet, heat dissipation chamber, and outlet, enabling heat exchange between the first cooling medium and the magnetic pump body within the heat dissipation chamber. This removes some of the heat from the magnetic pump body, lowering its temperature. The cooling component also facilitates heat exchange with the first cooling medium within the circulation channel, further reducing its temperature. When the first cooling medium returns to the heat dissipation chamber, it further lowers the temperature of the magnetic pump body. Finally, a booster impeller increases the flow velocity or pressure of the first cooling medium within the heat dissipation chamber, further reducing the temperature of the magnetic pump body.

[0061] Therefore, this application can solve the problem of excessively high temperature during operation of magnetic pumps, which leads to decreased working efficiency and shortened service life of magnetic pumps.

[0062] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0063] like Figure 1As shown in the figure, this application provides a magnetic pump cooling device, including: a magnetic pump body 100, a circulation component 200, a cooling component 300, and a booster impeller 400. The magnetic pump body 100 has a heat dissipation cavity 101 and an inlet 102 and an outlet 103 communicating with the heat dissipation cavity 101. The circulation component 200 has a circulation channel for containing a first cooling medium. One end of the circulation channel is connected to the inlet 102, and the other end of the circulation channel is connected to the outlet 103. The cooling component 300 is thermally connected to the circulation channel. The booster impeller 400 is rotatably disposed in the heat dissipation cavity 101.

[0064] The following sections provide a detailed description of the specific structure of the magnetic pump cooling device and the conveying system, as well as various possible implementation methods.

[0065] It should be noted that the booster impeller 400 can be a mixed-flow impeller, an axial-flow impeller, a radial blade impeller, or other types of impellers. There are no restrictions here, and it can be selected according to the actual use requirements.

[0066] It should be noted that the cooling component 300 can be an air-cooled island, a heat exchanger 301, a spray system, or other components that can play a cooling role. There are no restrictions here, and it can be selected according to actual usage requirements.

[0067] It should be noted that the primary cooling medium can be water, fluorinated liquid, mineral oil, or other fluids that can achieve a cooling effect. There are no restrictions on this, and it can be selected according to actual usage requirements.

[0068] In one embodiment, the cooling component 300 includes a heat exchanger 301, which has a first flow channel and a second flow channel. The first flow channel and the second flow channel are heat-exchange connected. In the first flow channel and the second flow channel, one of them is connected to a circulating flow channel, and the other of them is used to connect a second cooling medium externally.

[0069] It is understood that, through the above implementation method, the first cooling medium in the circulation channel can exchange heat with the external second cooling medium, thereby removing some of the heat of the first cooling medium in the circulation channel, so as to reduce the temperature of the first cooling medium in the circulation channel. When the first cooling medium in the circulation channel flows back to the heat dissipation cavity 101, the temperature of the magnetic pump body 100 can be further reduced.

[0070] It should be noted that the second cooling medium can be water, fluorinated liquid, mineral oil, or other fluids that can play a cooling role. There are no restrictions here, and it can be selected according to the actual use requirements.

[0071] It should be noted that the connection between heat exchanger 301 and the circulating channel can be as follows: the first channel is connected to the circulating channel and the second channel is connected to the second cooling medium, or the second channel is connected to the circulating channel and the first channel is connected to the second cooling medium. There are no restrictions here, and the appropriate method can be selected according to actual usage requirements.

[0072] The circulation assembly 200 provided in the embodiments of this application includes: a first pipeline 201, a second pipeline 202, a first pressure transmitter 203, a flow transmitter 204, and a temperature transmitter 205. One end of the first pipeline 201 is connected to the inlet 102, and the other end of the first pipeline 201 is connected to one end of either a first flow channel or a second flow channel. One end of the second pipeline 202 is connected to the outlet 103. When one end of the first pipeline 201 is connected to one end of the first flow channel, the other end of the second pipeline 202 is connected to the other end of the first flow channel. When connected to one end of the second flow channel, the other end of the second pipeline 202 is connected to the other end of the second flow channel. The first pressure transmitter 203 is connected to the first pipeline 201. The flow transmitter 204 is connected to the first pipeline 201. Along the length of the first pipeline 201, the flow transmitter 204 is located between the first pressure transmitter 203 and the inlet 102. The temperature transmitter 205 is connected to the first pipeline 201. Along the length of the first pipeline 201, the temperature transmitter 205 is located at the end of the first pressure transmitter 203 away from the flow transmitter 204.

[0073] It is understood that, through the above-described implementation method, the inlet 102, the heat dissipation chamber 101, the outlet 103, the second pipeline 202, the internal flow channels of the heat exchanger 301, and the first pipeline 201 can be connected, allowing the first cooling medium to circulate along this path. By providing a first pressure transmitter 203, the pressure of the first cooling medium in the first pipeline 201 can be detected, and the pressure value of the first cooling medium in the first pipeline 201 can be linearly converted into a standard electrical signal for remote transmission and control. It can also be used for internal pressure control of the first cooling medium in the first pipeline 201 to provide safety protection for the first pipeline 201 and the magnetic pump cooling device. By setting up a flow transmitter 204, the flow rate of the first cooling medium in the first pipeline 201 can be detected, and the flow rate value of the first cooling medium in the first pipeline 201 can be linearly converted into a standard electrical signal for remote transmission and control. It can also be used for flow control of the first cooling medium in the first pipeline 201 to provide safety protection for the first pipeline 201 and the magnetic pump cooling device. By setting up a temperature transmitter 205, the temperature of the first cooling medium in the first pipeline 201 can be detected, and the temperature value of the first cooling medium in the first pipeline 201 can be linearly converted into a standard electrical signal for remote transmission and control.

[0074] It should be noted that when the first flow channel is connected to the circulating flow channel and the second flow channel is connected to the second cooling medium, one end of the first pipeline 201 is connected to the first flow channel, the other end of the first pipeline 201 is connected to the liquid inlet 102, one end of the second pipeline 202 is connected to the other end of the first flow channel, and the other end of the second pipeline 202 is connected to the liquid outlet 103.

[0075] It is understood that, through the above implementation method, the liquid inlet 102, heat dissipation cavity 101, liquid outlet 103, second pipeline 202, first flow channel and first pipeline 201 can be connected so that the first cooling medium can circulate in this path.

[0076] It should be noted that when the second flow channel is connected to the circulation flow channel and the first flow channel is connected to the second cooling medium, one end of the first pipeline 201 is connected to the second flow channel, the other end of the first pipeline 201 is connected to the liquid inlet 102, one end of the second pipeline 202 is connected to the other end of the second flow channel, and the other end of the second pipeline 202 is connected to the liquid outlet 103.

[0077] It is understood that, through the above implementation method, the liquid inlet 102, heat dissipation cavity 101, liquid outlet 103, second pipeline 202, second flow channel and first pipeline 201 can be connected so that the first cooling medium can circulate in this path.

[0078] The circulation assembly 200 provided in the embodiments of this application further includes: a third pipeline 206, a check valve 207, a first shut-off valve 208, and a back pressure valve 209. One end of the third pipeline 206 is connected to the first pipeline 201, and the other end of the third pipeline 206 is used to connect to the input end of the first cooling medium. The check valve 207 is connected to the third pipeline 206, and the first shut-off valve 208 is connected to the third pipeline 206. Along the length of the third pipeline 206, the first shut-off valve 208 is located at the end of the check valve 207 away from the first pipeline 201. The back pressure valve 209 is connected to the third pipeline 206, and along the length of the third pipeline 206, the back pressure valve 209 is located at the end of the first shut-off valve 208 away from the check valve 207.

[0079] It is understood that, through the above implementation method, the first cooling medium in the first cooling medium input terminal can pass through the third pipeline 206, back pressure valve 209, first shut-off valve 208, and check valve 207 before entering the first pipeline 201 to replenish or transport the first cooling medium. By setting the check valve 207, backflow of the first cooling medium in the first pipeline 201 towards the third pipeline 206 can be prevented, thus protecting the equipment on the third pipeline 206. By setting the first shut-off valve 208, the connection between the third pipeline 206 and the first pipeline 201 can be opened or closed to control the replenishment or transport of the first cooling medium in the third pipeline 206. By setting the back pressure valve 209, the pressure of the first cooling medium in the third pipeline 206 can be kept constant to prevent cavitation, unstable flow, or vaporization of the first cooling medium, thereby providing safety protection for the magnetic pump cooling device.

[0080] The circulation assembly 200 provided in the embodiments of this application further includes: a metering pump 210, a second pressure transmitter 211, a first backup pipeline 212, and a safety valve 213. The metering pump 210 is connected to the third pipeline 206, the second pressure transmitter 211 is electrically connected to the metering pump 210, the first backup pipeline 212 is connected to the third pipeline 206, and the first backup pipeline 212 is connected in parallel with the metering pump 210. The safety valve 213 is connected to both the third pipeline 206 and the first backup pipeline 212.

[0081] Understandably, by setting up the metering pump 210, the flow rate of the first cooling medium delivered to the first pipeline 201 via the third pipeline 206 can be precisely controlled to maintain a stable supply of the first cooling medium in the first pipeline 201. The second pressure transmitter 211 can be used for pressure stabilization or flow regulation control of the metering pump 210. By setting up the first backup pipeline 212, in the event of a failure of the metering pump 210, the first cooling medium in the third pipeline 206 can be delivered to the first pipeline 201 via the first backup pipeline 212, ensuring the normal operation of the magnetic pump cooling device. By setting up the safety valve 213, in the event of overpressure in the third pipeline 206 and the first backup pipeline 212, the pressure in these pipelines can be quickly released to prevent explosion or damage due to excessive pressure, thus providing safety protection for the magnetic pump cooling device.

[0082] The circulation assembly 200 provided in the embodiments of this application further includes: an inlet accumulator 214, an outlet accumulator 215, a second shut-off valve 216, and a filter 217. The inlet accumulator 214 is connected to the third pipeline 206, and the outlet accumulator 215 is connected to the third pipeline 206. Along the length of the third pipeline 206, the inlet accumulator 214 and the outlet accumulator 215 are respectively located at both ends of the metering pump 210. The second shut-off valve 216 is connected to the third pipeline 206. Along the length of the third pipeline 206, the second shut-off valve 216 is located at the end of the inlet accumulator 214 away from the metering pump 210. The filter 217 is connected to the third pipeline 206. Along the length of the third pipeline 206, the filter 217 is located between the inlet accumulator 214 and the metering pump 210.

[0083] Understandably, by setting up the inlet accumulator 214, fluid energy can be stored or released to reduce pressure fluctuations at the inlet end or to reduce cavitation, thereby making the flow of the first cooling medium between the metering pump 210 and the input end of the first cooling medium more stable. By setting up the outlet accumulator 215, it can complement the inlet accumulator 214 to buffer the flow pulsation or pressure fluctuation of the first cooling medium output by the metering pump 210, reducing vibration and noise in the third pipeline 206. It can also perform pressure holding treatment on the third pipeline 206 to make the pressure of the first cooling medium in the third pipeline 206 more stable. By setting up the second shut-off valve 216, the connection between the third pipeline 206 can be opened or closed to further open or close the connection between the metering pump 210 and the input end of the first cooling medium, so as to control the opening and closing of the connection between the metering pump 210 and the input end of the first cooling medium. By setting up filter 217, impurities in the fluid between the input end of the first cooling medium and the metering pump 210 can be physically intercepted and removed to ensure the cleanliness of the first cooling medium, thereby protecting the safe operation of downstream equipment.

[0084] It should be noted that the filter 217 can be a screen filter 217, a depth filter 217, a self-cleaning filter 217, a Y-type filter 217, or other filters 217 that can filter solid impurities in the first cooling medium. There are no restrictions here, and the filter can be selected according to the actual use requirements.

[0085] In one embodiment, the magnetic pump cooling device further includes: a first drain valve 218 and a second drain valve 219, the first drain valve 218 and the second drain valve 219 being respectively connected to the third pipeline 206. Along the length of the third pipeline 206, the first drain valve 218 is located between the filter 217 and the metering pump 210, and the second drain valve 219 is located between the outlet accumulator 215 and the back pressure valve 209.

[0086] Understandably, the first drain valve 218 is used to drain the first cooling medium between the filter 217 and the metering pump 210, ensuring that there is no liquid accumulation or residue between them. It can also be used for periodic drainage and rapid drainage of the first cooling medium in case of an accident, thus facilitating maintenance or protection of the magnetic pump cooling device. By setting a second drain valve, the first cooling medium between the outlet accumulator 215 and the back pressure valve 209 can be drained, ensuring that there is no liquid accumulation or residue between them. It can also be used for periodic drainage and, in case of an accident, complements the first drain valve to further increase the drainage speed of the first cooling medium, thus facilitating maintenance or protection of the magnetic pump cooling device.

[0087] In one embodiment, the magnetic pump cooling device further includes a DCS control system, which is electrically connected to the first pressure transmitter 203, the flow transmitter 204, and the metering pump 210.

[0088] Understandably, the controller compares the detection value of the first pressure transmitter 203 with a first preset value, and the controller also compares the detection value of the flow transmitter 204 with a second preset value. If either of them is not within the set threshold range, the DCS control system controls the metering pump 210 to adjust the flow rate to ensure that the internal pressure of the heat dissipation cavity 101 flowing into the magnetic pump body 100 is about 2.5 bar higher than the impeller back pressure in the magnetic pump body 100, so as to provide safety protection for the sliding bearing and isolation sleeve 106 in the magnetic pump body 100.

[0089] The cooling assembly 300 provided in the embodiments of this application further includes: a fourth pipeline 302, a first temperature control valve 303, a second backup pipeline 304, and a second temperature control valve 305. When the circulating flow channel is connected to one of the first flow channel and the second flow channel, the fourth pipeline 302 is connected to the other of the first flow channel and the second flow channel. The first temperature control valve 303 is connected to the fourth pipeline 302 and is electrically connected to the temperature transmitter 205. The second backup pipeline 304 is connected to the fourth pipeline 302 and is connected in parallel with the first temperature control valve 303. The second temperature control valve 305 is connected to the second backup pipeline 304.

[0090] Understandably, by setting up the fourth pipeline 302, the second cooling medium can be transported to the heat exchanger 301, allowing the second cooling medium in the heat exchanger 301 to exchange heat with the first cooling medium in the circulating channel. This allows the second cooling medium to remove some of the heat from the first cooling medium, thus achieving cooling of the first cooling medium. By setting up the first temperature control valve 303, the flow rate of the second cooling medium can be adjusted to stabilize the temperature of the second cooling medium in the fourth pipeline 302 within a preset temperature range, thereby improving the energy utilization rate of the magnetic pump cooling device. It can also work in conjunction with the temperature transmitter 205 to achieve dynamic temperature control of the second cooling medium based on the temperature of the first cooling medium in the first pipeline 201. By setting up the second backup pipeline 304, when the first temperature control valve 303 fails, the second cooling medium in the fourth pipeline 302 can be transported to the heat exchanger 301 through the second backup pipeline 304, ensuring the normal operation of the magnetic pump cooling device. By setting a second temperature control valve 305, the flow rate of the second cooling medium can be adjusted so that the temperature of the second cooling medium in the second backup pipeline 304 can be stabilized within the preset temperature range, thereby improving the energy utilization rate of the magnetic pump cooling device.

[0091] In one embodiment, a thermal expansion safety valve is provided at the end of the heat exchanger 301 away from the fourth pipeline 302.

[0092] It is understandable that by setting a thermal expansion safety valve, when the pressure of the second cooling medium in the heat exchanger 301 exceeds the preset safety pressure value, the pressure of the heat exchanger 301 can be quickly released to prevent the heat exchanger 301 from exploding or being damaged due to excessive pressure, thereby providing safety protection for the magnetic pump cooling device.

[0093] In one embodiment, the DCS control system is also electrically connected to the temperature transmitter 205 and the first temperature control valve 303, respectively.

[0094] It is understood that, through the above implementation method, the temperature transmitter 205 can detect the temperature of the first cooling medium in the first pipeline 201, and the DCS control system can process and analyze the signal sent by the temperature transmitter 205. If the signal value sent by the temperature transmitter 205 is lower or higher than the set threshold range, the DCS controls the first temperature control valve 303 to adjust the flow rate to ensure that the temperature of the first cooling medium in the first pipeline 201 is within the specified range.

[0095] The magnetic pump body 100 provided in the embodiments of this application includes: a first cylinder 104, a second cylinder 105 and an isolation sleeve 106. The second cylinder 105 is sleeved inside the first cylinder 104. The second cylinder 105 has an inlet 102 and an outlet 103. A booster impeller 400 is rotatably connected to the second cylinder 105. The isolation sleeve 106 is sandwiched between the first cylinder 104 and the second cylinder 105. The isolation sleeve 106 is spaced out on the outside of the second cylinder 105 to form a heat dissipation cavity 101 with the second cylinder 105.

[0096] It is understood that, through the above-described embodiments, the heat dissipation cavity 101 can be distributed between the second cylinder 105 and the isolation sleeve 106, so that when the first cooling medium flows through the heat dissipation cavity 101, the first cooling medium can simultaneously exchange heat with the second cylinder 105 and the isolation sleeve 106 to cool down the second cylinder 105 and the isolation sleeve 106. In this case, the second cylinder 105 and the isolation sleeve 106 can generate direct heat conduction or indirect heat convection between the first cylinder 104 to dissipate heat from the first cylinder 104, thereby dissipating heat from the magnetic pump body 100.

[0097] In one embodiment, along the height direction of the magnetic pump body 100, the inlet 102 is spaced above the outlet 103.

[0098] It is understood that, through the above implementation method, the first cooling medium in the heat dissipation cavity 101 can enter the second pipeline 202 through the liquid outlet 103 under the action of gravity, so that the first cooling medium can flow into the heat exchanger 301.

[0099] The embodiments of this application provide a liquid level transmitter interface 107 on the first cylinder 104, which is used to connect an external liquid level transmitter. The isolation sleeve 106 is spaced inside the first cylinder 104 to form a leakage cavity with the first cylinder 104. The leakage cavity is connected to the liquid level transmitter interface 107.

[0100] It is understood that, through the above implementation method, the leakage cavity can be located outside the isolation sleeve 106, and the heat dissipation cavity 101 can be located inside the isolation sleeve 106. When the isolation sleeve 106 is damaged, the first cooling medium in the heat dissipation cavity 101 can flow into the leakage cavity and further flow into the level transmitter through the level transmitter interface 107 to monitor the first cooling medium and protect the magnetic pump cooling device.

[0101] In one implementation, the DCS control system is also electrically connected to the level transmitter.

[0102] It is understood that, through the above implementation method, if the isolation sleeve 106 ruptures, the first cooling medium will flow into the level transmitter through the leakage chamber and the transmitter interface. The level transmitter can detect the incoming liquid and transmit the signal to the DCS control system through the wire, so that the DCS control system can control the magnetic pump cooling device to stop working.

[0103] Embodiments of this application provide a conveying device, including the magnetic pump cooling device provided in any of the above embodiments.

[0104] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0105] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0106] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0107] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A magnetic pump cooling device, characterized in that, include: The magnetic pump body (100) has a heat dissipation cavity (101) and an inlet (102) and an outlet (103) communicating with the heat dissipation cavity (101). A circulation assembly (200) has a circulation channel for containing a first cooling medium. One end of the circulation channel is connected to the liquid inlet (102), and the other end of the circulation channel is connected to the liquid outlet (103). Cooling component (300), thermally connected to the circulation channel; The booster impeller (400) is rotatably disposed within the heat dissipation cavity (101).

2. The magnetic pump cooling device according to claim 1, characterized in that, The cooling component (300) includes: A heat exchanger (301) has a first flow channel and a second flow channel, which are heat exchanged together. In the first flow channel and the second flow channel, one of them is connected to the circulating flow channel, and the other is used to connect to a second cooling medium.

3. The magnetic pump cooling device according to claim 2, characterized in that, The loop component (200) includes: The first pipeline (201) has one end connected to the liquid inlet (102) and the other end connected to one end of the first flow channel or the second flow channel. The second pipeline (202) has one end connected to the outlet (103); when one end of the first pipeline (201) is connected to one end of the first flow channel, the other end of the second pipeline (202) is connected to the other end of the first flow channel; when one end of the first pipeline (201) is connected to one end of the second flow channel, the other end of the second pipeline (202) is connected to the other end of the second flow channel. A first pressure transmitter (203) is connected to the first pipeline (201); A flow transmitter (204) is connected to the first pipeline (201) and is located between the first pressure transmitter (203) and the inlet (102) along the length of the first pipeline (201). A temperature transmitter (205) is connected to the first pipeline (201) along the length of the first pipeline (201), and the temperature transmitter (205) is located at the end of the first pressure transmitter (203) away from the flow transmitter (204).

4. The magnetic pump cooling device according to claim 3, characterized in that, The loop component (200) further includes: The third pipeline (206) is connected at one end to the first pipeline (201), and the other end of the third pipeline (206) is used to connect to the input terminal of the first cooling medium. A check valve (207) is connected to the third pipeline (206); A first shut-off valve (208) is connected to the third pipeline (206). Along the length of the third pipeline (206), the first shut-off valve (208) is located at the end of the check valve (207) away from the first pipeline (201). A back pressure valve (209) is connected to the third pipeline (206). Along the length of the third pipeline (206), the back pressure valve (209) is located at the end of the first shut-off valve (208) away from the check valve (207).

5. The magnetic pump cooling device according to claim 4, characterized in that, The loop component (200) further includes: A metering pump (210) is connected to the third pipeline (206). The second pressure transmitter (211) is electrically connected to the metering pump (210). The first backup pipeline (212) is connected to the third pipeline (206), and the first backup pipeline (212) is connected in parallel with the metering pump (210); Safety valve (213) is connected to the third pipeline (206) and the first backup pipeline (212), respectively.

6. The magnetic pump cooling device according to claim 5, characterized in that, The loop component (200) further includes: An inlet accumulator (214) is connected to the third pipeline (206). An outlet accumulator (215) is connected to the third pipeline (206). Along the length of the third pipeline (206), the inlet accumulator (214) and the outlet accumulator (215) are respectively located at both ends of the metering pump (210). The second shut-off valve (216) is connected to the third pipeline (206) along the length of the third pipeline (206). The second shut-off valve (216) is located at the end of the inlet accumulator (214) away from the metering pump (210). A filter (217) is connected to the third pipeline (206) and is located between the inlet accumulator (214) and the metering pump (210) along the length of the third pipeline (206).

7. The magnetic pump cooling device according to any one of claims 2-6, characterized in that, The cooling component (300) also includes: The fourth pipeline (302) is connected to the other of the first and second channels when the circulation channel is connected to one of the first and second channels; A first temperature control valve (303) is connected to the fourth pipeline (302), and the first temperature control valve (303) is electrically connected to a temperature transmitter (205). The second backup pipeline (304) is connected to the fourth pipeline (302) and is connected in parallel with the control valve of the first temperature control valve (303); The second temperature control valve (305) is connected to the second backup pipeline (304).

8. The magnetic pump cooling device according to any one of claims 1-6, characterized in that, The magnetic pump body (100) includes: First cylinder block (104); The second cylinder (105) is fitted inside the first cylinder (104). The second cylinder (105) has the liquid inlet (102) and the liquid outlet (103). The booster impeller (400) is rotatably connected to the second cylinder (105). An isolation sleeve (106) is sandwiched between the first cylinder (104) and the second cylinder (105); The isolation sleeve (106) is spaced out on the outside of the second cylinder (105) to form the heat dissipation cavity (101) together with the second cylinder (105).

9. The magnetic pump cooling device according to claim 8, characterized in that, The first cylinder body (104) is provided with a level transmitter interface (107), which is used to connect an external level transmitter. The isolation sleeve (106) is spaced inside the first cylinder (104) to form a leakage cavity with the first cylinder (104), and the leakage cavity is connected to the level transmitter interface (107).

10. A conveying system, characterized in that, The magnetic pump cooling device includes any one of claims 1-9.

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