CN212842968U - Fused salt circulation cooling system - Google Patents
Fused salt circulation cooling system Download PDFInfo
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- CN212842968U CN212842968U CN202021649300.XU CN202021649300U CN212842968U CN 212842968 U CN212842968 U CN 212842968U CN 202021649300 U CN202021649300 U CN 202021649300U CN 212842968 U CN212842968 U CN 212842968U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model provides a molten salt circulating cooling system, which comprises a cooling air chamber, a solid molten salt conveying unit, a steam generator, a first measurement and control unit and a controller; the solid molten salt conveying unit comprises a storage device, a transmission device and a heating device which are sequentially connected. The steam generator is connected with the cooling air chamber through a first pipeline and is also connected with the cooling air chamber through a circulating device; the first measurement and control unit is arranged on the first pipeline, and the controller is electrically connected with the first electric valve, the first measurement and control unit and the transmission device. After the temperature of the cooling air chamber rises, the solid molten salt conveying unit forms liquid molten salt and inputs the liquid molten salt into the cooling air chamber, so that the temperature in the cooling air chamber is reduced; when the temperature of the liquid molten salt is enough to reduce the temperature of the cooling air chamber to the safe temperature, the controller controls the first electric valve to be opened and the transmission device to stop running; the utility model provides a pair of fused salt circulation cooling system avoids independently regulating and controlling the fused salt quantity, has improved organism cooling efficiency.
Description
Technical Field
The utility model belongs to the technical field of the organism cooling, more specifically say, relate to a fused salt circulation cooling system.
Background
In the cracking production process of various light oils, the body temperature of the fluidized bed reactor is high. When heat is discharged from the machine body, the cooling air chamber is generally connected with the air outlet of the machine body, high-temperature gas in the machine body is absorbed through the cooling air chamber, and the circulating water system is matched with the cooling air chamber, so that the high-temperature gas carries heat through a water medium and exits from the cooling air chamber, and the temperature of the cooling air chamber is reduced to a safe temperature.
When the reaction furnace is cooled through the circulating water system, the aqueous medium is required to be ensured to pass through the cooling air chamber at a higher flow speed, otherwise, the aqueous medium is easily gasified in the moment, and larger pressure is generated in the cooling air chamber, so that the equipment is damaged. In order to solve the technical problem, in the prior art, fused salt (generally, inorganic salt or a fused liquid of a mixture of the inorganic salt and the inorganic salt) is used for replacing an aqueous medium, and because the evaporation temperature of the fused salt is higher than that of the aqueous medium, the amount of steam generated by gasification when the fused salt passes through a temperature reduction gas chamber is less, the pressure of the temperature reduction gas chamber is prevented from suddenly increasing, and the safety in the reaction process is improved.
The inventor finds that when the reaction furnace is cooled through the molten salt, although the speed of the molten salt passing through the high-temperature air chamber is not required to be controlled, in order to avoid resource waste and ensure reaction safety, the amount of the molten salt added in each cooling process needs to be regulated and prepared by field workers, the process takes too much preparation time, and the efficiency of cooling the reaction furnace body is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fused salt circulation cooling system, when aiming at solving and circulating the cooling through the fused salt, need carry out the technical problem who regulates and control to the quantity of fused salt alone.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a molten salt circulation cooling system, comprising:
the cooling air chamber is connected with the machine body and used for absorbing high-temperature gas in the machine body;
the solid molten salt conveying unit comprises a storage device, a transmission device and a heating device which are sequentially connected; the storage device is used for storing solid molten salt; the conveying device is used for conveying the solid molten salt in the storage device to the heating device; the heating device is connected with the cooling air chamber and is used for heating the solid molten salt into liquid molten salt;
the steam generator is connected with the cooling gas chamber through a first pipeline and used for receiving the liquid molten salt discharged by the cooling gas chamber and reducing the temperature of the liquid molten salt; the steam generator is connected with a circulating device which is used for re-conveying the liquid molten salt in the steam generator to the cooling gas chamber;
the first measurement and control unit comprises a first electric valve and a first temperature sensor which are arranged on the first pipeline, and the first electric valve is used for controlling the first pipeline to be conducted or blocked; the first temperature sensor is used for detecting the temperature of the liquid molten salt in the first pipeline; and
a controller electrically connected to the first electrically operated valve, the first temperature sensor, and the transmission device;
when the controller controls the first electric valve to be opened to conduct the first pipeline, the controller also controls the transmission device to stop running.
As another embodiment of the present application, the circulation device includes:
the two ends of the second pipeline are respectively connected with the steam generator and the cooling gas chamber and are used for receiving the liquid molten salt discharged by the steam generator; and
and the one-way pump is connected to the second pipeline and used for conveying the liquid molten salt in the steam generator to the cooling air chamber.
As another embodiment of the present application, the circulation device further includes a second measurement and control unit for controlling the conduction or the plugging of the second pipeline; the second measurement and control unit comprises:
the second electric valve is connected to the second pipeline and used for controlling the second pipeline to be communicated or plugged; and
a second temperature sensor for detecting the temperature of the liquid molten salt in the second pipeline;
the second electric valve and the second temperature sensor are respectively and electrically connected with the controller.
As another embodiment of the application, a cooling pool for discharging the liquid molten salt in the second pipeline is connected to the second pipeline, the cooling pool is communicated with the second pipeline through a third pipeline, and a third electric valve for controlling the third pipeline to be communicated or blocked is arranged on the third pipeline; the third electrically operated valve is electrically connected to the controller.
As another embodiment of the present application, the third pipeline is disposed below the second pipeline.
As another embodiment of the present application, the second pipe is disposed below the steam generator.
The utility model provides a pair of fused salt circulation cooling system's beneficial effect lies in:
when the temperature of the machine body rises, high-temperature gas formed in the machine body enters the cooling air chamber. The transmission device is started, so that the solid molten salt in the storage device is continuously conveyed to the heating device, the solid molten salt is heated by the heating device to be liquid molten salt, and the liquid molten salt is introduced into the cooling air chamber; because the temperature of liquid fused salt is less than the temperature of high-temperature gas, consequently the temperature of cooling gas chamber can reduce gradually, and the temperature of liquid fused salt increases gradually. Finally, the temperature of the cooling gas chamber is reduced to a safe temperature, the temperature of the liquid molten salt in the cooling gas chamber reaches a peak value (namely the difference value between the temperature when the high-temperature gas is introduced and the safe temperature), and when a first temperature sensor of the first measurement and control unit detects the peak value, the controller controls the first electric valve to be opened, so that the first pipeline is conducted, and the liquid molten salt is input into the steam generator; the temperature of the liquid molten salt is reduced through the steam generator, and then the liquid molten salt enters the cooling air chamber again through the circulating device.
In the circulation cooling process, when the circulation of the liquid molten salt is formed between the steam generator and the cooling air chamber, the controller detects a signal for controlling the first pipeline to be conducted by the first electric valve, so that the transmission device stops running and stops the conversion and the conveying of the external solid molten salt.
Compared with the prior art, the utility model provides a pair of fused salt circulation cooling system avoids the process of artifical regulation and control fused salt quantity, has improved the work efficiency when cooling down the organism through the fused salt.
Drawings
Fig. 1 is a schematic view of a molten salt circulation cooling system provided by an embodiment of the present invention.
In the figure, 1, a cooling air chamber; 2. a solid molten salt conveying unit; 21. a storage device; 22. a transmission device; 23. a heating device; 3. a steam generator; 4. a first pipeline; 5. a first measurement and control unit; 51. a first electrically operated valve; 52. a first temperature sensor; 6. a controller; 61. a first control module; 62. a second control module; 7. a second measurement and control unit; 71. a second electrically operated valve; 72. a second temperature sensor; 8. a circulation device; 81. a second pipeline; 82. a one-way pump; 9. a recovery unit; 91. a third pipeline; 92. a third electrically operated valve; 93. a cooling pool; 100. a body.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a molten salt circulation cooling system provided by the present invention will now be described. The molten salt circulating cooling system comprises a cooling air chamber 1, a solid molten salt conveying unit 2, a steam generator 3, a first measurement and control unit 5 and a controller 6.
The cooling air chamber 1 is used for connecting with the machine body 100 and sucking high-temperature gas in the machine; specifically, usually, the top end of the machine body 100 is provided with a pressure balance port for discharging steam, the cooling air chamber 1 is installed on the pressure balance port, and the cavity of the cooling air chamber 1 is located above the pressure balance port, so that steam can directly enter the cooling air chamber 1 in the upward movement process.
The solid molten salt conveying unit 2 comprises a storage device 21, a transmission device 22 and a heating device 23 which are connected in sequence; wherein, the storage device 21 is used for storing the solid molten salt and is made of a material with stronger air tightness and thermal insulation. The conveying device 22 is used for conveying the solid molten salt in the storage device 21 to the heating device 23, and is generally in a structure of a belt conveyor or a plate conveyor. The heating device 23 is connected with the cooling air chamber 1 and used for heating the solid molten salt into liquid molten salt and introducing the liquid molten salt into the cooling air chamber 1 to reduce the temperature in the cooling air chamber 1.
The steam generator 3 is connected with the cooling gas chamber 1 through a first pipeline 4 and is used for receiving the liquid molten salt discharged from the cooling gas chamber 1 and reducing the temperature of the liquid molten salt; the steam generator 3 is connected with a circulating device 8 for re-conveying the liquid molten salt in the steam generator 3 to the cooling gas chamber 1; that is to say, the input end of the steam generator 3 is communicated with the output end of the cooling air chamber 1 through the first pipeline 4, and the output end of the steam generator 3 is communicated with the input end of the cooling air chamber 1 through the circulating device 8.
The first measurement and control unit 5 is arranged between the cooling air chamber 1 and the steam generator 3 and used for detecting the temperature of the liquid molten salt discharged from the cooling air chamber 1 and limiting the input of the liquid molten salt into the steam generator 3. The first measurement and control unit 5 includes a first electric valve 51 and a first temperature sensor 52, which are disposed on the first pipeline 4, and the first electric valve 51 adopts a flow limiting valve structure for limiting the flow of liquid, and is used for controlling the first pipeline 4 to be conducted or plugged. The first temperature sensor 52 is used to detect the temperature of the liquid molten salt in the first pipeline 4 (i.e., the liquid molten salt that is to pass through the first electrically-operated valve 51).
The controller 6 is electrically connected with the first electric valve 51, the first measurement and control unit 5 and the transmission device 22, and is used for controlling the opening and closing of the first electric valve 51. Meanwhile, when the first electric valve 51 controls the first pipeline 4 to be conducted, the controller 6 can control the transmission device 22 to stop running, and this process can be realized by a PLC control system.
When the temperature of the machine body 100 rises, high-temperature gas formed in the machine body 100 enters the cooling air chamber 1. The transmission device 22 is started, so that the solid molten salt in the storage device 21 is continuously conveyed to the heating device 23, the solid molten salt is heated by the heating device 23 to be liquid molten salt, and the liquid molten salt is introduced into the cooling air chamber 1; because the temperature of the liquid molten salt is less than that of the high-temperature gas, the temperature of the cooling gas chamber 1 is gradually reduced, and the temperature of the liquid molten salt is gradually increased. Finally, the temperature of the cooling gas chamber 1 is reduced to a safe temperature, at this time, the temperature of the liquid molten salt in the cooling gas chamber 1 reaches a peak value (that is, a difference value between the temperature when the high-temperature gas is initially introduced and the safe temperature), when the first temperature sensor 52 of the first measurement and control unit 5 detects a temperature value same as a preset peak value, the first electric valve 51 is opened through the controller 6, the first pipeline 4 is conducted (the input part of the steam generator 3 is communicated with the output part of the cooling gas chamber 1), and the liquid molten salt is input into the steam generator 3; the temperature of the liquid molten salt is reduced by the steam generator 3, and then the liquid molten salt enters the temperature reduction gas chamber 1 again through the circulating device 8.
In the above-mentioned circulation cooling process, when the circulation of liquid fused salt is formed between steam generator 3 and cooling air chamber 1, controller 6 detects the signal that first electric valve 51 controlled first pipeline 4 to switch on for transmission device 22 out of service stops the conversion and the transport of external solid-state fused salt, plays material saving's effect.
Compared with the prior art, the utility model provides a pair of fused salt circulation cooling system avoids the process of artifical regulation and control fused salt quantity, has improved the work efficiency when cooling down organism 100 through the fused salt.
It should be added that the controller 6 has a first control module 61, and the first control module 61 is electrically connected to the first temperature sensor 52 and the first electrically operated valve 51; the first control module 61 can set a predetermined value (a difference value between the temperature when the high-temperature gas is introduced into the cooling air chamber 1 and the safety temperature), the temperature signal detected by the first temperature sensor 52 is transmitted to the first control module 61, and the first control module 61 compares the received temperature signal value with the predetermined value and judges whether the value is equal to or higher than the predetermined value. When the temperature signal is equal to or higher than a preset value, the first control module 61 controls the first electric valve 51 to be opened; through the arrangement, on one hand, the cooling effect in the cooling air chamber 1 is ensured, on the other hand, the transportation of the solid molten salt by the transmission device 22 can be stopped in time,
referring to fig. 1, as a specific embodiment of the molten salt circulation cooling system provided by the present invention, the circulation device 8 includes a second pipeline 81 and a one-way pump 82.
Two ends of the second pipeline 81 are respectively connected with the steam generator 3 and the cooling gas chamber 1 and are used for receiving the liquid molten salt discharged by the steam generator 3; the one-way pump 82 is connected to the second pipeline 81 and is used for conveying the liquid molten salt in the steam generator 3 to the temperature reduction gas chamber 1.
Through adopting above-mentioned technical scheme, one-way pump 82 provides the speed of circulation for the liquid fused salt in the second pipeline 81, ensures that the liquid fused salt in the second pipeline 81 can get into cooling air chamber 1, has improved the stability of this device in actual operation.
Referring to fig. 1, as a specific implementation manner of the molten salt circulating cooling system provided by the present invention, the circulating device 8 further includes a second measurement and control unit 7 for controlling the second pipeline 81 to be connected or plugged, and the second measurement and control unit 7 includes a second electric valve 71 and a second temperature sensor 72.
The second electrically operated valve 71 is connected to the second pipeline 81 for controlling the second pipeline 81 to open or close, and the specific use principle thereof is the same as that of the first electrically operated valve 51.
The second temperature sensor 72 is used for detecting the temperature of the liquid molten salt in the second pipeline 81, and the second electric valve 71 and the second temperature sensor 72 are electrically connected with the controller 6 respectively. That is, the controller 6 also includes a second control module 62, and the second control module 62 is capable of receiving readings from a second temperature sensor 72 and controlling the second electrically-operated valve 71 based on this temperature data. The specific use principle of the second control module 62 is the same as that of the first control module 61.
Through adopting above-mentioned technical scheme, can just switch on when first pipeline 4 (also be exactly liquid fused salt just gets into steam generator 3), observe second temperature sensor 72's reading, through opening and closing of controller 6 control second electric valve 71 to the realization is carried out the shutoff to second pipeline 81, has guaranteed to let in the liquid fused salt temperature in the cooling air chamber 1 again, has guaranteed the cooling effect of liquid fused salt circulation cooling process to cooling air chamber 1.
Referring to fig. 1, as a specific embodiment of the molten salt circulating cooling system provided by the present invention, the second pipeline 81 is connected to a cooling pool 93 for discharging the liquid molten salt in the second pipeline 81, the cooling pool 93 is communicated with the second pipeline 81 through a third pipeline 91, and a third electric valve 92 for controlling the third pipeline 91 to be conducted or plugged is disposed on the third pipeline 91; the third electrically operated valve 92 is electrically connected to the controller 6, that is, the controller 6 further includes a third control module capable of controlling the opening and closing of the third electrically operated valve 92.
By adopting the technical scheme, the recovery of the liquid molten salt in the second pipeline 81 and the first pipeline 4 (namely the circulating system of the liquid molten salt) is realized, and the liquid molten salt is cooled by the cooling pool 93, so that the molten salt recovery is realized, and the effective utilization of resources is ensured.
It should be added that the combination structure of the third pipeline 91, the third electric valve 92 and the cooling tank 93 (in the present embodiment, the combination structure is collectively referred to as the recovery unit 9) may be provided with a plurality of sets, and respectively communicate with the second pipeline 81 and the third pipeline 91.
Referring to fig. 1, as a specific embodiment of the molten salt circulating cooling system provided by the present invention, an input portion of the third pipeline 91 is located below the second pipeline 81.
Through adopting above-mentioned technical scheme, the liquid fused salt in the second pipeline 81 can directly get into third pipeline 91 under the action of gravity, has improved the efficiency of this system when in actual use.
Referring to fig. 1, as a specific embodiment of the molten salt circulating cooling system provided by the present invention, the input portion of the second pipeline 81 is located below the steam generator 3.
Through adopting above-mentioned technical scheme, the liquid fused salt in the steam generator 3 can directly get into second pipeline 81 under the action of gravity, has improved the efficiency of this system when in actual use.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A molten salt circulation cooling system, comprising:
the cooling air chamber is connected with the machine body and used for absorbing high-temperature gas in the machine body;
the solid molten salt conveying unit comprises a storage device, a transmission device and a heating device which are sequentially connected; the storage device is used for storing solid molten salt; the conveying device is used for conveying the solid molten salt in the storage device to the heating device; the heating device is connected with the cooling air chamber and is used for heating the solid molten salt into liquid molten salt;
the steam generator is connected with the cooling gas chamber through a first pipeline and used for receiving the liquid molten salt discharged by the cooling gas chamber and reducing the temperature of the liquid molten salt; the steam generator is connected with a circulating device which is used for re-conveying the liquid molten salt in the steam generator to the cooling gas chamber;
the first measurement and control unit comprises a first electric valve and a first temperature sensor which are arranged on the first pipeline, and the first electric valve is used for controlling the first pipeline to be conducted or blocked; the first temperature sensor is used for detecting the temperature of the liquid molten salt in the first pipeline; and
a controller electrically connected to the first electrically operated valve, the first temperature sensor, and the transmission device;
when the controller controls the first electric valve to be opened to conduct the first pipeline, the controller also controls the transmission device to stop running.
2. A molten salt circulating cooling system as claimed in claim 1, wherein the circulating means includes:
the two ends of the second pipeline are respectively connected with the steam generator and the cooling gas chamber and are used for receiving the liquid molten salt discharged by the steam generator; and
and the one-way pump is connected to the second pipeline and used for conveying the liquid molten salt in the steam generator to the cooling air chamber.
3. The molten salt circulating cooling system of claim 2, wherein the circulating device further comprises a second measurement and control unit for controlling the conduction or the blockage of the second pipeline; the second measurement and control unit comprises:
the second electric valve is connected to the second pipeline and used for controlling the second pipeline to be communicated or plugged; and
a second temperature sensor for detecting the temperature of the liquid molten salt in the second pipeline;
the second electric valve and the second temperature sensor are respectively and electrically connected with the controller.
4. The molten salt circulating cooling system as claimed in claim 2, wherein a cooling pool for discharging the liquid molten salt in the second pipeline is connected to the second pipeline, the cooling pool is communicated with the second pipeline through a third pipeline, and a third electric valve for controlling the third pipeline to be communicated or blocked is arranged on the third pipeline; the third electrically operated valve is electrically connected to the controller.
5. A molten salt circulating cooling system as claimed in claim 4 in which the third conduit is located below the second conduit.
6. A molten salt circulating cooling system as claimed in claim 2, wherein the second conduit is disposed below the steam generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021649300.XU CN212842968U (en) | 2020-08-10 | 2020-08-10 | Fused salt circulation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021649300.XU CN212842968U (en) | 2020-08-10 | 2020-08-10 | Fused salt circulation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212842968U true CN212842968U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021649300.XU Active CN212842968U (en) | 2020-08-10 | 2020-08-10 | Fused salt circulation cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212842968U (en) |
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2020
- 2020-08-10 CN CN202021649300.XU patent/CN212842968U/en active Active
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