CN219974850U - Liquid level control system for lead bismuth pump - Google Patents
Liquid level control system for lead bismuth pump Download PDFInfo
- Publication number
- CN219974850U CN219974850U CN202321472169.8U CN202321472169U CN219974850U CN 219974850 U CN219974850 U CN 219974850U CN 202321472169 U CN202321472169 U CN 202321472169U CN 219974850 U CN219974850 U CN 219974850U
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- CN
- China
- Prior art keywords
- pump
- liquid level
- bismuth
- lead bismuth
- lead
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- 239000007788 liquid Substances 0.000 title claims abstract description 82
- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 81
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910001152 Bi alloy Inorganic materials 0.000 claims abstract description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 36
- 238000007599 discharging Methods 0.000 claims description 23
- 229910052786 argon Inorganic materials 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a liquid level control system for a lead bismuth pump, which relates to a lead bismuth pump and is connected to a lead bismuth loop, wherein a lead bismuth pump and a lead bismuth storage tank are arranged in the lead bismuth loop, a pump cavity is arranged in the lead bismuth pump, the pump cavity is communicated with the lead bismuth storage tank, liquid lead bismuth alloy is filled in the pump cavity and the lead bismuth storage tank, the liquid level control system comprises a liquid level meter, a control box, an inflating part and an exhausting part, the liquid level meter is arranged on the lead bismuth pump, the liquid level meter is used for monitoring the liquid level of the lead bismuth alloy in the pump cavity, the liquid level meter is connected with the control box, the control box is respectively connected with the inflating part and the exhausting part, and the inflating part and the exhausting part are respectively communicated with the pump cavity. The utility model can quickly and effectively adjust the liquid level of the lead-bismuth medium in the pump cavity, can ensure that the liquid level of the pump cavity is stabilized in a required range, and has the advantages of quick response, simple structure and simple installation.
Description
Technical Field
The utility model relates to a lead bismuth pump, in particular to a liquid level control system for the lead bismuth pump.
Background
Lead bismuth pumps are commonly used in the nuclear and chemical industries to deliver liquid metals (liquid lead bismuth alloys). The liquid lead bismuth alloy in the lead bismuth pump and the lead bismuth storage tank has certain liquid level difference, and inert gases (argon) with different pressures are filled into the pump cavity and the storage tank to ensure that the liquid level in the pump cavity is within the range of design requirements.
When the pump set operates, the liquid level of the pump cavity can fluctuate; in order to ensure that the pump set can stably and reliably control the lead-bismuth liquid level in the pump cavity in the operation process, a liquid level control system is needed to be designed, and the liquid level in the pump cavity is ensured to be stable in a required range.
Disclosure of Invention
In view of the defects existing at present, the utility model provides a liquid level control system for a lead bismuth pump, which can quickly and effectively adjust the liquid level of lead bismuth medium in a pump cavity, can ensure that the liquid level of the pump cavity is stable in a required range, and has the advantages of quick response, simple structure and simple installation.
In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:
a liquid level control system for plumbous bismuth pump links to each other in plumbous bismuth return circuit, be equipped with plumbous bismuth pump, plumbous bismuth storage tank in the plumbous bismuth return circuit, be equipped with the pump chamber in the plumbous bismuth pump, pump chamber and plumbous bismuth storage tank intercommunication are equipped with liquid plumbous bismuth alloy in the two, liquid level control system includes level gauge, control box, inflation portion, exhaust portion, the level gauge is installed on plumbous bismuth pump, monitors the plumbous bismuth alloy liquid level in the pump chamber, the level gauge links to each other with the control box, the control box links to each other with inflation portion, exhaust portion respectively, inflation portion, exhaust portion communicate with the pump chamber respectively.
According to one aspect of the utility model, the inflating part comprises an argon tank, the argon tank is communicated with the pump cavity through an inflating pipeline, an inflating valve is arranged on the inflating pipeline, and the inflating valve is connected with the control box.
According to one aspect of the utility model, the exhaust part comprises an argon recovery tank, the argon recovery tank is communicated with the pump cavity through an exhaust pipeline, an exhaust valve is arranged on the exhaust pipeline, and the exhaust valve is connected with the control box.
According to one aspect of the utility model, the charging pipeline is also provided with a charging pressure sensor, the exhaust pipeline is also provided with an exhaust pressure sensor, and the charging pressure sensor and the exhaust pressure sensor are respectively connected with the control box.
According to one aspect of the utility model, the lead bismuth pump comprises a pump shell, a pump shaft and a pump cover, wherein the pump cavity is arranged in the pump shell, the pump shaft is arranged in the pump cavity, the pump cover is sleeved on the pump shaft, and the pump cover is fixed with the pump shell.
According to one aspect of the utility model, the liquid level meter is arranged on the pump cover, a connecting air port is arranged on the pump shell, one end of the connecting air port is communicated with the pump cavity, and the other end of the connecting air port is respectively communicated with the air charging pipeline and the air discharging pipeline.
According to one aspect of the utility model, the lead bismuth pump further comprises a driving motor, a bearing component, a mechanical seal and an overhaul seal, one end of the driving motor is connected with the pump shaft, and the pump cover, the overhaul seal, the mechanical seal and the bearing component are sleeved on the pump shaft in sequence from bottom to top.
According to one aspect of the utility model, the connecting air port comprises an air charging port and an air discharging port, one end of the air charging port is communicated with the pump cavity, the other end of the air charging port is communicated with the air charging pipeline, and one end of the air discharging port is communicated with the pump cavity, and the other end of the air discharging port is communicated with the air discharging pipeline.
According to one aspect of the utility model, the lead bismuth pump further comprises a pump support and a motor support, the drive motor is mounted on the motor support, the pump housing is fixed with the pump support, and the motor support is mounted on the pump support.
According to one aspect of the utility model, the lead-bismuth storage tank is provided with an air inlet, the lead-bismuth storage tank is communicated with the pump cavity through a circulating pipeline, and the circulating pipeline is provided with a control valve and a pressure gauge.
The implementation of the utility model has the advantages that: the liquid level of the liquid lead bismuth alloy in the pump cavity is monitored through a liquid level meter, a liquid level signal is transmitted to a control box, the control box controls an air charging part or an air discharging part to charge air or discharge air into the pump cavity, the air pressure covered by the pump cavity is regulated, and the liquid level height in the pump cavity is controlled by utilizing the pressure difference between the pump cavity and a lead bismuth storage tank, so that the liquid level in the pump cavity is ensured to be stable in a required range; therefore, the system can automatically, quickly and effectively adjust the liquid level of the lead-bismuth medium in the pump cavity, can ensure that the liquid level of the pump cavity is stabilized in a required range, and has quick response; meanwhile, the system has simple overall structure and simple and convenient installation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a lead bismuth loop arrangement according to the present utility model;
fig. 2 is a schematic diagram of the connection of the present utility model.
The names corresponding to the serial numbers in the figures are as follows:
1. a lead bismuth pump; 11. a pump housing; 111. a pump chamber; 112. the connecting air port; 12. a pump shaft; 13. a pump cover; 14. overhauling and sealing; 15. mechanical sealing; 16. a bearing member; 17. a driving motor; 18. a pump support; 19. a motor bracket; 2. a lead bismuth storage tank; 21. an air inlet; 3. a liquid level gauge; 4. a control box; 5. an argon tank; 6. an inflation valve; 7. an argon recovery tank; 8. an exhaust valve; 9. a gas-filled pressure sensor; 10. an exhaust pressure sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2, a liquid level control system for a lead bismuth pump is connected to a lead bismuth loop, and a lead bismuth pump 1 and a lead bismuth storage tank 2 are arranged in the lead bismuth loop. The lead bismuth pump 1 comprises a pump shell 11, a pump shaft 12, a pump cover 13, an overhaul seal 14, a mechanical seal 15, a bearing component 16, a driving motor 17, a pump bracket 18 and a motor bracket 19; the driving motor 17 is arranged at the top of the motor bracket 19; the motor bracket 19 is arranged on the pump bracket 18; the top of the pump shell 11 is fixed with the pump bracket 18 through a bolt fastener, and a pump cavity 111 is arranged in the pump shell 11; one end of the pump shaft 12 is connected with the driving motor 17 through a coupling, and the other end of the pump shaft is rotatably arranged in the pump cavity 111; the pump cover 13, the overhaul seal 14, the mechanical seal 15 and the bearing component 16 are sleeved on the pump shaft 12 in sequence from bottom to top; the bottom of the pump cover 13 is fixed with the top of the pump shell 11 through a bolt fastener. The lead-bismuth storage tank 2 is communicated with the pump cavity 111 through a circulating pipeline, and a lead-bismuth medium, namely liquid lead-bismuth alloy, supplied to the pump cavity 111 is arranged in the lead-bismuth storage tank 2; the circulating pipeline is provided with pipeline components such as a control valve for controlling the on-off of the circulating pipeline, a pressure gauge for monitoring the pressure of the circulating pipeline, a connecting flange used as intermediate transitional connection and the like, and the control valve and the pressure gauge can be connected into a total control system together with a control box 4 described below, so that the total control and adjustment are facilitated. The liquid level control system comprises a liquid level meter 3, a control box 4, an inflating part and an exhausting part; the liquid level meter 3 is arranged on the pump cover 13 and is used for monitoring the liquid level of the liquid lead bismuth alloy in the pump cavity 111 and transmitting a liquid level signal thereof, and the liquid level meter 3 is connected with the control box 4; the control box 4 is connected to an air charging portion and an air discharging portion, which are respectively communicated with the pump chamber 111.
In practical application, the inflation part comprises an argon gas tank 5, the argon gas tank 5 is communicated with the pump cavity 111 through an inflation pipeline, an inflation valve 6 is arranged on the inflation pipeline, and the inflation valve 6 is connected with the control box 4. The exhaust portion comprises an argon recovery tank 7, the argon recovery tank 7 is communicated with a pump cavity 111 through an exhaust pipeline, an exhaust valve 8 is arranged on the exhaust pipeline, and the exhaust valve 8 is connected with the control box 4. The charging valve 6 and the discharging valve 8 are electric regulating valves, and the opening and closing of the charging valve and the discharging valve are controlled by the control box 4.
In practical application, the inflation pipeline is also provided with an inflation pressure sensor 9, so that the pressure signal in the inflation pipeline can be conveniently monitored and transmitted; the exhaust pipe is also provided with an exhaust pressure sensor 10 which is convenient for monitoring and transmitting pressure signals in the exhaust pipe; the air charging pressure sensor 9 and the air discharging pressure sensor 10 are respectively connected with the control box 4.
In practical application, the top of the pump shell 11 is provided with a connecting air port 112, one end of the connecting air port 112 is communicated with the pump cavity 111, and the other end of the connecting air port 112 is respectively communicated with an air charging pipeline and an air discharging pipeline. The connection air port 112 comprises an air charging port and an air discharging port, one end of the air charging port is communicated with the pump cavity 111, the other end of the air charging port is communicated with the air charging pipeline, and one end of the air discharging port is communicated with the pump cavity 111, and the other end of the air discharging port is communicated with the air discharging pipeline. The number of the air charging ports and the air discharging ports is not limited.
In practical application, the lead-bismuth storage tank 2 is provided with an air inlet 21, and the air inlet 21 is arranged above the liquid lead-bismuth alloy in the lead-bismuth storage tank 2; the air inlet 21 can be filled with inert gas, and is further matched with the air charging part and the air discharging part, and the liquid level height of the pump cavity 111 is controlled by utilizing the pressure difference between the pump cavity 111 and the lead bismuth storage tank 2.
In practical application, the lead bismuth pump 1 (pump housing 11, pump shaft 12, pump cover 13, maintenance seal 14, mechanical seal 15, bearing component 16, driving motor 17, pump bracket 18, motor bracket 19) and lead bismuth storage tank 2 are all of the prior art, and will not be described again.
The working principle of the system is as follows:
when the liquid level meter 3 monitors that the liquid level in the pump cavity 111 is too high, a liquid level signal is transmitted to the control box 4, the control box 4 controls the inflation valve 6 to be opened (at the moment, the exhaust valve 8 is closed), so that the argon gas tank 5 inflates the pump cavity 111 through an inflation pipeline, the air pressure in the pump cavity 111 is increased, and the liquid lead-bismuth alloy in the pump cavity 111 is pressed back into the lead-bismuth storage tank 2 through a circulation pipeline by utilizing the pressure difference between the pump cavity 111 and the lead-bismuth storage tank 2, so that the liquid level of the pump cavity 111 is reduced; on the contrary, when the liquid level meter 3 monitors that the liquid level in the pump cavity 111 is too low, a liquid level signal is transmitted to the control box 4, the control box 4 controls the exhaust valve 8 to open (at the moment, the inflation valve 6 is closed), so that inert gas (argon) in the pump cavity 111 returns to the argon recovery tank 7 through an exhaust pipeline, the pressure in the pump cavity 111 is reduced, and the liquid lead-bismuth alloy in the lead-bismuth storage tank 2 is sent into the pump cavity 111 through a circulation pipeline by utilizing the pressure difference between the pump cavity 111 and the lead-bismuth storage tank 2, so that the liquid level of the pump cavity 111 is improved. Thus, the liquid level of the pump cavity 111 is ensured to be stabilized in a required range through the automatic adjustment control of the system.
The implementation of the utility model has the advantages that: the liquid level of the liquid lead bismuth alloy in the pump cavity 111 is monitored through the liquid level meter 3, a liquid level signal is transmitted to the control box 4, the control box 4 controls the air charging part or the air discharging part to charge or discharge air into the pump cavity 111, the air pressure covered by the pump cavity 111 is regulated, and the liquid level height in the pump cavity 111 is controlled by utilizing the pressure difference between the pump cavity 111 and the lead bismuth storage tank 2, so that the liquid level in the pump cavity 111 is ensured to be stable in a required range; thus, the system can automatically, quickly and effectively adjust the liquid level of the lead-bismuth medium in the pump cavity 111, ensure that the liquid level of the pump cavity 111 is stabilized in a required range, and react quickly; meanwhile, the system has simple overall structure and simple and convenient installation.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A liquid level control system for plumbous bismuth pump links to each other in plumbous bismuth return circuit, be equipped with plumbous bismuth pump (1), plumbous bismuth storage tank (2) in plumbous bismuth return circuit, be equipped with pump chamber (111) in plumbous bismuth pump (1), pump chamber (111) and plumbous bismuth storage tank (2) intercommunication, all be equipped with liquid plumbous bismuth alloy in the two, its characterized in that, liquid level control system includes level gauge (3), control box (4), inflation portion, exhaust portion, level gauge (3) are installed on plumbous bismuth pump (1), monitor plumbous bismuth alloy liquid level in pump chamber (111), level gauge (3) link to each other with control box (4), control box (4) link to each other with inflation portion, exhaust portion respectively, inflation portion, exhaust portion communicate with pump chamber (111) respectively.
2. The liquid level control system for the lead bismuth pump according to claim 1, wherein the inflating part comprises an argon tank (5), the argon tank (5) is communicated with the pump cavity (111) through an inflating pipeline, an inflating valve (6) is arranged on the inflating pipeline, and the inflating valve (6) is connected with the control box (4).
3. A liquid level control system for a lead bismuth pump according to claim 2, characterized in that the exhaust part comprises an argon recovery tank (7), the argon recovery tank (7) is communicated with the pump cavity (111) through an exhaust pipeline, an exhaust valve (8) is arranged on the exhaust pipeline, and the exhaust valve (8) is connected with the control box (4).
4. A liquid level control system for a lead bismuth pump according to claim 3, wherein the charging pipeline is further provided with a charging pressure sensor (9), the exhaust pipeline is further provided with an exhaust pressure sensor (10), and the charging pressure sensor (9) and the exhaust pressure sensor (10) are respectively connected with the control box (4).
5. A liquid level control system for a lead bismuth pump according to claim 3, wherein the lead bismuth pump (1) comprises a pump shell (11), a pump shaft (12) and a pump cover (13), the pump cavity (111) is arranged in the pump shell (11), the pump shaft (12) is arranged in the pump cavity (111), the pump cover (13) is sleeved on the pump shaft (12), and the pump cover (13) is fixed with the pump shell (11).
6. The liquid level control system for the lead bismuth pump according to claim 5, wherein the liquid level meter (3) is arranged on the pump cover (13), a connecting air port (112) is arranged on the pump shell (11), one end of the connecting air port (112) is communicated with the pump cavity (111), and the other end of the connecting air port (112) is respectively communicated with the air charging pipeline and the air discharging pipeline.
7. The liquid level control system for the lead bismuth pump according to claim 5, wherein the lead bismuth pump (1) further comprises a driving motor (17), a bearing component (16), a mechanical seal (15) and an overhaul seal (14), one end of the driving motor (17) is connected with the pump shaft (12), and the pump cover (13), the overhaul seal (14), the mechanical seal (15) and the bearing component (16) are sequentially sleeved on the pump shaft (12) from bottom to top.
8. The liquid level control system for a lead bismuth pump according to claim 6, wherein the connecting port (112) comprises an air charging port, an air discharging port, one end of the air charging port is communicated with the pump cavity (111), the other end of the air charging port is communicated with the air charging pipeline, and one end of the air discharging port is communicated with the pump cavity (111), and the other end of the air discharging port is communicated with the air discharging pipeline.
9. A liquid level control system for a lead bismuth pump according to claim 7, characterized in that the lead bismuth pump (1) further comprises a pump bracket (18) and a motor bracket (19), the drive motor (17) is mounted on the motor bracket (19), the pump housing (11) is fixed with the pump bracket (18), and the motor bracket (19) is mounted on the pump bracket (18).
10. The liquid level control system for the lead bismuth pump according to claim 1, wherein the lead bismuth storage tank (2) is provided with an air inlet (21), the lead bismuth storage tank (2) is communicated with the pump cavity (111) through a circulating pipeline, and the circulating pipeline is provided with a control valve and a pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321472169.8U CN219974850U (en) | 2023-06-11 | 2023-06-11 | Liquid level control system for lead bismuth pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321472169.8U CN219974850U (en) | 2023-06-11 | 2023-06-11 | Liquid level control system for lead bismuth pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974850U true CN219974850U (en) | 2023-11-07 |
Family
ID=88598116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321472169.8U Active CN219974850U (en) | 2023-06-11 | 2023-06-11 | Liquid level control system for lead bismuth pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974850U (en) |
-
2023
- 2023-06-11 CN CN202321472169.8U patent/CN219974850U/en active Active
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