Mechanical vacuum pump system
By designing a mechanical vacuum pump system that includes components such as inlet solenoid valve, inlet manual door and soda separator, the vacuum system abnormality caused by the disconnection of mechanical vacuum pumps in the event of failure is solved, and the reliable operation and safety of the system are improved.
Patent Information
- Application Number
- CN202420828028.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The mechanical vacuum pump is not connected after starting or after shutdown, causing the vacuum system to be connected to the atmosphere, the unit vacuum drops rapidly, and the steam exhaust temperature of the steam turbine rises sharply, resulting in accidents such as unit non-stop and equipment damage.
A mechanical vacuum pump system is designed. By setting up components such as inlet solenoid valves, inlet manual doors, soda separators, water level control ball valves and solenoid valves, the abnormal valves are automatically closed in the event of a fault, ensuring the normal operation of the vacuum system.
It effectively avoids the problem of excessive or low water level of the vacuum pump separator caused by mechanical vacuum pump failure, prevents abnormal output of the mechanical vacuum pump, avoids unit non-stop and equipment damage caused by inlet solenoid valve failure, and improves the reliability and safety of the system.
Smart Images
Figure CN222650044U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steam turbine vacuum systems, in particular to a mechanical vacuum pump system. Background Art
[0002] Steam turbine exhaust needs to maintain a certain vacuum, and mechanical vacuum pumps are generally used as a means to maintain vacuum. When there is a problem with the water replenishment of the mechanical vacuum pump separator, the water level is too high or too low, which will cause the mechanical vacuum pump to malfunction, causing the vacuum of the unit to drop, affecting the energy consumption index of the unit, and even causing the unit to trip due to low vacuum.
[0003] The inlet of the mechanical vacuum pump is generally controlled by a solenoid valve, which is opened after the mechanical vacuum pump is started and closed after the mechanical vacuum pump is shut down. When the solenoid valve fails, the solenoid valve will not be closed after the mechanical vacuum pump is shut down, and the inlet manual door will be operated for a long time, resulting in the vacuum system being directly connected to the atmosphere, and the unit vacuum will drop rapidly until the condition is met. The exhaust temperature of the turbine will rise sharply, causing the unit to not shut down and equipment damage. Therefore, it has become an urgent problem to be solved to improve and perfect the above-mentioned problems. Utility Model Content
[0004] The utility model aims to provide a mechanical vacuum pump system to solve the problems proposed in the above-mentioned background technology that the mechanical vacuum pump is opened after starting and closed after stopping. When the solenoid valve fails, the solenoid valve does not close after the mechanical vacuum pump stops, and the inlet manual door is operated for a long time, the vacuum system is directly connected to the atmosphere, the vacuum of the unit drops rapidly until the condition is met, the exhaust temperature of the turbine rises sharply, and accidents such as the non-stop of the unit and damage to the equipment occur.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical vacuum pump system, comprising a mechanical vacuum pump body, a first connecting pipe is arranged on the right side surface of the mechanical vacuum pump body, an inlet solenoid valve and an inlet manual door are arranged on the surface of the first connecting pipe in sequence from left to right, a cooler body is arranged on the front surface of the mechanical vacuum pump body, an installation connecting pipe is arranged on the left side surface of the mechanical vacuum pump body, and a steam-water separator is arranged on one end of the installation connecting pipe away from the mechanical vacuum pump body;
[0006] A second connecting pipe, the second connecting pipe is installed on the left side surface of the steam-water separator, a third connecting pipe is arranged on the lower surface of the second connecting pipe, a first separator water replenishment manual door and a separator water level control ball valve are arranged on the outer surface of the second connecting pipe in sequence from left to right, a separator water level control solenoid valve and a second separator water replenishment manual door are arranged on the outer surface of the third connecting pipe in sequence from left to right, and a fourth connecting pipe is arranged on the top surface of the steam-water separator.
[0007] Preferably, a water seal pipe is provided on the top surface of the fourth connecting pipe, and an overflow pipe is provided on the top surface of the water seal pipe.
[0008] Preferably, a check valve and a separator outlet solenoid valve are sequentially provided on the right side surface of the fourth connecting pipe from top to bottom, and a fifth connecting pipe is provided on the right side surface of the water seal pipe.
[0009] Preferably, a water seal injection solenoid valve is provided on the outer surface of the fifth connecting pipe, a water seal injection box is provided at one end of the fifth connecting pipe away from the water seal pipe, and a sixth connecting pipe is provided on the top surface of the water seal injection box.
[0010] Preferably, a support ring is provided on the lower surface of the mounting connection pipe, and a support rod is fixedly connected to the lower surface of the support ring.
[0011] Preferably, a mounting tube is provided on the right side surface of the first connecting tube, an adjusting ring is provided inside the mounting tube, a rotating column is provided on the top surface of the adjusting ring, and the rotating column penetrates the top surface of the mounting tube and is connected to the adjusting ring.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The mechanical vacuum pump system comprises a mechanical vacuum pump body, a first connecting pipe, an inlet solenoid valve, an inlet manual door, a cooler body, an installation connecting pipe, a steam-water separator, a second connecting pipe, a third connecting pipe, a first separator water supply manual door, a separator water level control ball valve, a separator water level control solenoid valve and a second separator water supply manual door. When in use, when the first separator water supply manual door and the separator water level control ball valve fail, the first separator water supply manual door is closed, and then the separator water level control solenoid valve and the second separator water supply manual door are opened. When the steam-water separator and the inlet solenoid valve fail, for example, after the mechanical vacuum pump body trips, When the valve is not connected or the mechanical vacuum pump is stopped, it opens suddenly. Close the separator outlet solenoid valve and open the water seal injection solenoid valve to ensure the vacuum system is normal. Then there is enough time to close the inlet manual door and deal with the defect. After the application and transformation of this project, the reliable operation of the mechanical vacuum pump system can be achieved, and the abnormal output of the mechanical vacuum pump caused by the separator water level being too high or too low when the float valve of the vacuum pump separator fails can be avoided. At the same time, it avoids the occurrence of unit non-stop and equipment damage accidents when the inlet solenoid valve fails. The operation is simple and reliable, which enhances the safety of the unit, improves the reliability of the equipment, and increases the economic benefits for the enterprise.
[0014] 2. The mechanical vacuum pump system, through the installation connecting pipe, support ring, installation cylinder, rotating column and adjustment ring, can stably support the installation connecting pipe through the design of the support ring and the support rod during use, and the overall supporting effect is good. Subsequently, the angle of the adjusting ring can be adjusted by rotating the rotating column on the top surface of the installation cylinder, so that the flow rate of the water flow can be controlled during water delivery. The overall use effect is good, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a three-dimensional schematic diagram of the second connecting pipe and the third connecting pipe structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the installation of the connecting pipe and the support ring structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the disassembly of the installation cylinder and the adjustment ring structure of the utility model.
[0019] In the figure: 1. Mechanical vacuum pump body; 2. First connecting pipe; 3. Inlet solenoid valve; 4. Inlet manual door; 5. Cooler body; 6. Installation connecting pipe; 7. Steam-water separator; 8. Second connecting pipe; 9. Third connecting pipe; 10. First separator water replenishment manual door; 11. Separator water level control ball valve; 12. Separator water level control solenoid valve; 13. Second separator water replenishment manual door; 14. Fourth connecting pipe; 15. Water seal pipeline; 16. Overflow pipe; 17. Separator outlet solenoid valve; 18. Check valve; 19. Fifth connecting pipe; 20. Water seal water filling box; 21. Sixth connecting pipe; 22. Water seal water filling solenoid valve; 23. Support ring; 24. Installation cylinder; 25. Rotating column; 26. Adjustment ring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-4 , an embodiment provided by the utility model:
[0022] A mechanical vacuum pump system, the mechanical vacuum pump body 1, inlet solenoid valve 3, steam-water separator 7, separator water level control ball valve 11, separator water level control solenoid valve 12, second separator water replenishment manual door 13, separator outlet solenoid valve 17, check valve 18 and water seal water injection solenoid valve 22 used in this application are all products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, so they are not repeated here, including a mechanical vacuum pump body 1, a first connecting pipe 2 is provided on the right side surface of the mechanical vacuum pump body 1, and the surface of the first connecting pipe 2 is sequentially provided with an inlet solenoid valve 3 and an inlet manual door 4 from left to right, a cooler body 5 is provided on the front surface of the mechanical vacuum pump body 1, and a A connecting pipe 6 is installed. A steam-water separator 7 is provided at one end of the connecting pipe 6 away from the mechanical vacuum pump body 1. A support ring 23 is provided on the lower surface of the connecting pipe 6. A support rod is fixedly connected to the lower surface of the support ring 23. A mounting tube 24 is provided on the right side surface of the first connecting pipe 2. An adjusting ring 26 is provided inside the mounting tube 24. A rotating column 25 is provided on the top surface of the adjusting ring 26. The rotating column 25 penetrates the top surface of the mounting tube 24 and is connected to the adjusting ring 26. The design of the supporting ring 23 and the supporting rod can stably support the connecting pipe 6, and the overall supporting effect is good. Subsequently, the angle of the adjusting ring 26 can be adjusted by rotating the rotating column 25 on the top surface of the mounting tube 24, so that the flow rate of the water flow can be controlled during water delivery as a whole, and the overall use effect is good.
[0023] The second connecting pipe 8 is installed on the left side surface of the steam-water separator 7. The lower surface of the second connecting pipe 8 is provided with a third connecting pipe 9. The outer surface of the second connecting pipe 8 is provided with a first separator water replenishment manual door 10 and a separator water level control ball valve 11 in sequence from left to right. The outer surface of the third connecting pipe 9 is provided with a separator water level control solenoid valve 12 and a second separator water replenishment manual door 13 in sequence from left to right. The top surface of the steam-water separator 7 is provided with a fourth connecting pipe 14. The fourth connecting pipe A water seal pipe 15 is arranged on the top surface of the water seal pipe 14, an overflow pipe 16 is arranged on the top surface of the water seal pipe 15, a check valve 18 and a separator outlet electromagnetic valve 17 are arranged on the right side surface of the fourth connecting pipe 14 from top to bottom, a fifth connecting pipe 19 is arranged on the right side surface of the water seal pipe 15, a water seal water injection electromagnetic valve 22 is arranged on the outer surface of the fifth connecting pipe 19, a water seal water injection tank 20 is arranged at one end of the fifth connecting pipe 19 away from the water seal pipe 15, and a sixth connecting pipe 19 is arranged on the top surface of the water seal water injection tank 20. Take over 21. When the first separator water replenishment manual door 10 and the separator water level control ball valve No. 11 fail, close the first separator water replenishment manual door 10, and then open the separator water level control solenoid valve 12 and the second separator water replenishment manual door 13. When the steam-water separator 7 and the inlet solenoid valve No. 3 fail, for example, the mechanical vacuum pump body 1 is not closed after tripping, or the valve suddenly opens when the mechanical vacuum pump body 1 is in a shutdown state, close the separator outlet solenoid valve 17, open the water seal water injection solenoid valve 22, and ensure that the vacuum system is normal. Then there is enough time to close the inlet manual door 4 and deal with the defects. After the application and transformation of this project, the reliable operation of the mechanical vacuum pump body 1 system can be realized, and the abnormal output of the mechanical vacuum pump caused by the separator water level being too high or too low when the vacuum pump separator float valve fails can be avoided. At the same time, the unit non-stop and equipment damage accidents when the inlet solenoid valve 3 fails can be avoided. The operation is simple and reliable, which enhances the safety of the unit and improves the reliability of the equipment.
[0024] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. During use, when the first separator water replenishment manual door 10 and the separator water level control ball valve door 11 fail, close the first separator water replenishment manual door 10, and then open the separator water level control solenoid valve 12 and the second separator water replenishment manual door 13. When the steam-water separator 7 and the inlet solenoid valve 3 fail, for example, the mechanical vacuum pump body 1 is not closed after tripping, or the valve suddenly opens when the mechanical vacuum pump body 1 is in a shutdown state, close the separator outlet solenoid valve 17, open the water seal water injection solenoid valve 22, and ensure that the vacuum system is normal. Then there is enough time to close the inlet manual door 4 and deal with the defects. The design of the support ring 23 and the support rod can stably support the installation connecting pipe 6, and the overall support effect is good. Subsequently, the angle of the adjustment ring 26 can be adjusted by rotating the rotating column 25 on the top surface of the installation cylinder 24, so that the flow rate of the water flow can be controlled as a whole during water delivery. The above is all the working principles of the utility model.
[0025] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. A mechanical vacuum pump system, comprising a mechanical vacuum pump body (1), wherein a first connecting pipe (2) is provided on the right side surface of the mechanical vacuum pump body (1), characterized in that: The surface of the first connecting pipe (2) is provided with an inlet solenoid valve (3) and an inlet manual door (4) in sequence from left to right, the front surface of the mechanical vacuum pump body (1) is provided with a cooler body (5), the left side surface of the mechanical vacuum pump body (1) is provided with an installation connecting pipe (6), and the end of the installation connecting pipe (6) away from the mechanical vacuum pump body (1) is provided with a steam-water separator (7); A second connecting pipe (8), the second connecting pipe (8) is installed on the left side surface of the steam-water separator (7), a third connecting pipe (9) is arranged on the lower surface of the second connecting pipe (8), a first separator water replenishment manual door (10) and a separator water level control ball valve (11) are arranged on the outer surface of the second connecting pipe (8) in sequence from left to right, a separator water level control solenoid valve (12) and a second separator water replenishment manual door (13) are arranged on the outer surface of the third connecting pipe (9) in sequence from left to right, and a fourth connecting pipe (14) is arranged on the top surface of the steam-water separator (7).
2. A mechanical vacuum pump system according to claim 1, characterized in that: A water seal pipe (15) is provided on the top surface of the fourth connecting pipe (14), and an overflow pipe (16) is provided on the top surface of the water seal pipe (15).
3. A mechanical vacuum pump system according to claim 2, characterized in that: A check valve (18) and a separator outlet electromagnetic valve (17) are sequentially arranged on the right side surface of the fourth connecting pipe (14) from top to bottom, and a fifth connecting pipe (19) is arranged on the right side surface of the water seal pipe (15).
4. A mechanical vacuum pump system according to claim 3, characterized in that: The outer surface of the fifth connecting pipe (19) is provided with a water seal injection solenoid valve (22), the end of the fifth connecting pipe (19) away from the water seal pipe (15) is provided with a water seal injection box (20), and the top surface of the water seal injection box (20) is provided with a sixth connecting pipe (21).
5. A mechanical vacuum pump system according to claim 1, characterized in that: A support ring (23) is provided on the lower surface of the installation connection pipe (6), and a support rod is fixedly connected to the lower surface of the support ring (23).
6. A mechanical vacuum pump system according to claim 1, characterized in that: A mounting tube (24) is provided on the right side surface of the first connecting tube (2), an adjusting ring (26) is provided inside the mounting tube (24), a rotating column (25) is provided on the top surface of the adjusting ring (26), and the rotating column (25) penetrates the top surface of the mounting tube (24) and is connected to the adjusting ring (26).