Secondary pressure-bearing super-heat-resistant shield pump structure with pressure relief opening
By designing the structure of the shut-off valve, safety valve and pressure-bearing joint in the ultra-heat-resistant shielding pump, the problem of expansion of the stator winding gas under high temperature and high pressure conditions is solved, and the pressure relief and secondary pressure bearing functions are realized, which extends the service life and improves the safety of the equipment.
Patent Information
- Application Number
- CN202421722315.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing ultra-thermal resistant motors lack secondary pressure-bearing structures under high temperature and high pressure conditions, causing the precipitated gas of the stator winding to expand inward, damage the shield sleeve and shorten the service life.
A secondary pressure-bearing ultra-heat-resistant shielding pump structure with a pressure relief port is designed. By installing a stop valve, a safety valve and a pressure-bearing junction frame in the junction box, the pressure relief and secondary pressure-bearing functions are realized to prevent medium leakage and gas expansion.
Effectively reduces damage to ultra-heat-resistant shielding pumps, extends service life, and prevents gas leakage and external gas entry through a dual protection mechanism.
Smart Images
Figure CN223035273U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric pumps, in particular to a structure of a secondary pressure-bearing super heat-resistant canned motor pump with a pressure relief port. Background Technique
[0002] With the booming development of the domestic canned motor pump industry, special working conditions such as high temperature and high pressure are increasing day by day. On the basis of the original super heat-resistant motor, the super heat-resistant canned motor pump must also have the ability to withstand high pressure. The existing super heat-resistant motors, due to the lack of a secondary pressure-bearing structure, are mostly applicable to low-pressure occasions. If the conventional secondary pressure-bearing structure is directly used in high-temperature working conditions, gases will be precipitated in the super heat-resistant motor winding at high temperatures. The gases precipitated during pump shutdown will expand inward, causing the shielding sleeve to expand inward. Over time, the shielding sleeve will be damaged, thus shortening the service life of the canned motor pump.
[0003] Therefore, a structure of a super heat-resistant canned motor pump that can relieve pressure and achieve secondary pressure-bearing is needed. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above-mentioned problems and provide a structure of a secondary pressure-bearing super heat-resistant canned motor pump with a pressure relief port.
[0005] The technical solution adopted by the utility model to achieve the above purpose is as follows:
[0006] A structure of a secondary pressure-bearing super heat-resistant canned motor pump with a pressure relief port, including a super heat-resistant motor, the super heat-resistant motor is communicated with a junction box, reinforcing sleeves are installed at both the front and rear ends of the stator winding of the super heat-resistant motor, a stator shielding sleeve is installed on the inner surfaces of the stator winding and the reinforcing sleeves, the housing of the super heat-resistant motor is communicated with the junction box through a junction box base, a pressure-bearing wiring support is installed in the junction box, a stop valve is connected to the upper end of the junction box base, and a safety valve is installed on the stop valve.
[0007] A stator lead-out base is installed on the housing, and the housing is communicated with the junction box base through the stator lead-out base.
[0008] A connecting flange is installed on the upper end of the junction box base, and the upper end of the junction box base is connected to a flanged stop valve through the connecting flange.
[0009] The stop valve and the safety valve are connected by fasteners.
[0010] The characteristics of the utility model are: by setting a stop valve, a safety valve, and a pressure-bearing wiring support, the functions of pressure relief and secondary pressure-bearing of the super heat-resistant canned motor pump are realized, the damage to the super heat-resistant canned motor pump is reduced, and the service life is prolonged. Brief Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the utility model.
[0012] Wherein: 1. Stator winding; 2. Reinforcing sleeve; 3. Stator shielding sleeve; 4. Housing; 5. Stator lead-out base; 6. Junction box base; 7. Junction box; 8. Pressure-bearing wiring support; 9. Connecting flange; 10. Globe valve; 11. Safety valve; 12. Fastener. Specific embodiments
[0013] As Figure 1 shown, the present utility model is a structure of a secondary pressure-bearing super heat-resistant canned motor pump with a pressure relief port, including a super heat-resistant motor. The super heat-resistant motor is communicated with the junction box 7. Reinforcing sleeves 2 are installed at both the front and rear ends of the stator winding 1 of the super heat-resistant motor. A stator shielding sleeve 3 is installed on the inner surfaces of the stator winding 1 and the reinforcing sleeve 2. A stator lead-out base 5 is welded on the housing 4 of the super heat-resistant motor. The stator lead-out base 5 is communicated with the junction box 7 through the junction box base 6. A pressure-bearing wiring support 8 is installed in the junction box 7. An opening is made at the upper end of the junction box base 6 and a connecting flange 9 is welded. The connecting flange 9 is connected to a flanged globe valve 10. A safety valve 11 is connected to the globe valve 10 through a fastener 12. The pressure relief and secondary pressure-bearing functions of the super heat-resistant canned motor pump are realized through the above structure.
[0014] During use, when the super heat-resistant canned motor pump is running, the globe valve 10 is closed. The stator shielding sleeve 3 and the reinforcing sleeve 2 have the function of primary pressure-bearing. Even if the medium leaks into the junction box base 6, the pressure-bearing wiring support 8 can also play the role of secondary pressure-bearing to prevent the medium from leaking to the outside. When the super heat-resistant canned motor pump stops running, the globe valve 10 is opened. The gas separated from the stator winding 1 is relieved through the globe valve 10 and the safety valve 11, and it will not cause the stator shielding sleeve 3 to expand inwards. At the same time, the safety valve 11 also isolates the external gas from entering, playing a dual protection role.
[0015] The above is only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.
Claims
1. A secondary pressure-bearing super-heat-resistant shielded pump structure with a pressure relief port, comprising a super-heat-resistant motor, the super-heat-resistant motor being connected to a junction box, characterized in that: The front and rear ends of the stator winding of the super heat-resistant motor are both installed with reinforcement sleeves, the stator winding and the inner surface of the reinforcement sleeve are installed with a stator shielding sleeve, the shell of the super heat-resistant motor is connected with the junction box through the junction box base, a pressure-bearing junction frame is installed in the junction box, the upper end of the junction box base is connected with a stop valve, and a safety valve is installed on the stop valve.
2. A secondary pressure-bearing super heat-resistant shielded pump structure with a pressure relief port as claimed in claim 1, characterized in that: A stator outlet base is installed on the shell, and the shell is connected with the junction box base through the stator outlet base.
3. A secondary pressure-bearing super heat-resistant shielded pump structure with a pressure relief port as claimed in claim 1, characterized in that: A connecting flange is installed on the upper end of the junction box base, and the upper end of the junction box base is connected to the flange-type stop valve through the connecting flange.
4. A secondary pressure-bearing super heat-resistant shielded pump structure with a pressure relief port as claimed in claim 1, characterized in that: The stop valve is connected to the safety valve via a fastener.