CN113417866B - High-temperature high-pressure pump - Google Patents
High-temperature high-pressure pump Download PDFInfo
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- CN113417866B CN113417866B CN202110915097.9A CN202110915097A CN113417866B CN 113417866 B CN113417866 B CN 113417866B CN 202110915097 A CN202110915097 A CN 202110915097A CN 113417866 B CN113417866 B CN 113417866B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a high-temperature high-pressure pump, comprising: the pump comprises a motor, a pump coupling body, a pump shell, a motor shaft, a pump shaft and an impeller, wherein a lower end cover is arranged at one end of the motor, the pump coupling body is connected between the lower end cover and the pump shell, and a sealed cavity is formed by the pump coupling body, the lower end cover and the pump shell; one end of the motor shaft is arranged in the motor, the other end of the motor shaft extends into the pump-motor coupling body, one end of the pump shaft is arranged in the pump-motor coupling body, the other end of the pump shaft is arranged in the pump shell, the motor shaft is connected with the pump shaft through a coupling, and one end of the pump shaft, which is positioned in the pump shell, is connected with the impeller. The invention realizes the working environment of the motor under normal temperature and pressure, improves the high-reliability operation of the electric pump and reduces the manufacturing cost.
Description
Technical Field
The invention relates to the technical field of submersible motors, in particular to a high-temperature and high-pressure pump.
Background
Along with the development of science and technology, the high-temperature and high-pressure pump has wider and wider application, is mainly applied to the fields of nuclear power, large-scale thermal power, metallurgy, petroleum, chemical engineering and the like at present, and is used for conveying various media with high-temperature and high-pressure characteristics, so that the design and development requirements on the pump are high. Taking the chemical industry field as an example, in the whole set of process unit, the key equipment is a chemical centrifugal circulating pump which is used for conveying high-temperature and high-pressure media, the pump is dependent on external cooling media to cool the motor and the mechanical seal of the pump, and the motor is prevented from being burnt by heating and the conveying media are prevented from invading into the motor to cause the motor to be damaged. The measures adopted at present are that high-pressure cooling medium is introduced into the motor, the pressure of the cooling medium is greater than the pressure of the conveying medium of the pump, the mechanical seal and the motor can be cooled, and a part of the cooling medium flows into the conveying medium due to the fact that the pressure of the cooling medium is greater than the pressure of the conveying medium, so that the conveying medium is prevented from invading the motor. The interior of a motor of the pump is filled with high-pressure cooling media, the design and manufacture requirements of the motor are high, a motor shell has enough strength, and a motor winding is required to reliably run in cooling media such as water or oil. Such pumps require long-term trouble-free operation, and in order to improve the reliability of the pump, it is necessary to improve the structure of the existing electric pump.
Disclosure of Invention
Embodiments of the present invention provide a high-temperature and high-pressure pump to solve some of the above problems in the related art.
An embodiment of the present invention provides a high-temperature high-pressure pump including: the pump comprises a motor, a pump coupling body, a pump shell, a motor shaft, a pump shaft and an impeller, wherein a lower end cover is arranged at one end of the motor, the pump coupling body is connected between the lower end cover and the pump shell, and a sealed cavity is formed by the pump coupling body, the lower end cover and the pump shell; one end of the motor shaft is arranged in the motor, the other end of the motor shaft extends into the pump coupling body, one end of the pump shaft is arranged in the pump coupling body, the other end of the pump shaft is arranged in the pump shell, the motor shaft is connected with the pump shaft through a coupling, and one end of the pump shaft, which is positioned in the pump shell, is connected with the impeller; the pump comprises a pump shaft, a pump body, a pump shaft, a pump connecting body, a throttling seat, a pressure relief valve assembly, an outlet pipe, an inlet pipe and a pump machine connecting body, wherein the throttling seat is arranged in the sealing cavity, the throttling seat is sleeved on the pump shaft, a gap exists between the throttling seat and the pump shaft, the pressure relief valve assembly is arranged on the throttling seat and connected with the outlet pipe, the outlet pipe is communicated to the outer side of the sealing cavity in the sealing cavity, the pump machine connecting body is further provided with the inlet pipe, and the outer side of the pump machine connecting body is communicated to the inner side of the pump machine connecting body.
Further, a mechanical seal is arranged between the lower end cover and the pump coupling body.
Furthermore, a skeleton seal is arranged on one side, close to the impeller, between the throttling seat and the pump shaft.
Further, the coupler is made of heat insulation materials.
Further, an inner cavity hole is formed in the throttling seat and communicated with the pressure relief valve assembly.
Further, the inner cavity hole comprises a first inner cavity, a second inner cavity, a third inner cavity and a fourth inner cavity which are arranged along the length direction of the pump shaft, and the pressure relief valve assembly comprises a first pressure relief valve, a second pressure relief valve, a third pressure relief valve and a fourth pressure relief valve; the first inner chamber with first relief pressure valve intercommunication, the second inner chamber with the second relief pressure valve intercommunication, the third inner chamber with the third relief pressure valve intercommunication, the fourth inner chamber with the fourth relief pressure valve intercommunication, first relief pressure valve the second relief pressure valve the third relief pressure valve with the fourth relief pressure valve respectively with the outlet pipe intercommunication, just first relief pressure valve the second relief pressure valve the third relief pressure valve with the fourth relief pressure valve is kept away from in proper order the shaft coupling sets up.
Further, the liquid inlet pressure in the inlet pipe is not less than the pressure of the medium conveyed by the impeller.
Further, the relief pressure of the fourth pressure reducing valve, the third pressure reducing valve, the second pressure reducing valve, and the first pressure reducing valve is gradually reduced.
Further, the relief pressure of the first pressure reducing valve is greater than the relief pressure of the outlet pipe.
Further, the pressure relief pressure of the fourth pressure reducing valve is smaller than the pressure of the medium conveyed by the impeller.
The advantages of the invention are as follows: according to the embodiment of the invention, firstly, a high-pressure low-temperature medium is introduced into the sealed cavity, after the high-pressure low-temperature medium is introduced into the sealed cavity, the temperature of the sealed cavity can be reduced, and the influence of the high-pressure high-temperature medium outside the throttle seat on the motor end is weakened.
In addition, the lower end cover of the motor and the pump coupling body are provided with mechanical seals, in the pump coupling body, because the cooling medium belongs to a high-pressure medium, one part of the cooling medium overflows to a pump section through the mechanical seal, the other part of the cooling medium enters the throttling pressure reducing device through the framework seal and flows out through the throttling valve component and the water outlet pipe, the cooling of the pump shaft and the mechanical seal is realized, the pressure of the shaft extension end of the motor is reduced, the working environment of the motor under normal temperature and normal pressure is realized, the high-reliability operation of the electric pump is improved, and the manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a high-temperature high-pressure pump according to an embodiment of the invention.
Fig. 2 is a partial schematic structural view of a high-temperature high-pressure pump according to an embodiment of the present invention.
In the figure: the motor comprises a motor 1, a lower end cover 2, a mechanical seal 3, a coupler 4, an inner cavity hole 5, a first inner cavity 51, a second inner cavity 52, a third inner cavity 53, a fourth inner cavity 54, a pressure relief valve assembly 6, a first pressure relief valve 61, a second pressure relief valve 62, a third pressure relief valve 63, a fourth pressure relief valve 64, an outlet pipe 7, an inlet pipe 8, a skeleton seal 9, a pump machine coupling body 10, a pump shell 11, a motor shaft 12, a pump shaft 13, an impeller 14, a throttle seat 15 and a seal cavity 16.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention, but are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations and improvements in the parts, components and connection means, without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying drawings 1-2, in conjunction with an embodiment.
Referring to fig. 1 to 2, a high-temperature and high-pressure pump according to an embodiment of the present invention includes: the pump comprises a motor 1, a pump coupling body 10, a pump shell 11, a motor shaft 12, a pump shaft 13 and an impeller 14, wherein a lower end cover 2 is arranged at one end of the motor 1, the pump coupling body 10 is connected between the lower end cover 2 and the pump shell 11, and a sealed cavity 16 is formed by the pump coupling body 10, the lower end cover 2 and the pump shell 11; one end of the motor shaft 12 is arranged inside the motor 1, the other end of the motor shaft 12 extends into the pump coupling body 10, one end of the pump shaft 13 is arranged in the pump coupling body 10, the other end of the pump shaft 13 is arranged in the pump shell 11, the motor shaft 12 is connected with the pump shaft 13 through the coupling 4, and one end of the pump shaft 13, which is positioned in the pump shell 11, is connected with the impeller 14; the pump is characterized in that a throttle seat 15 is arranged in the sealed cavity 16, the throttle seat 15 is sleeved on the pump shaft 13, a gap exists between the throttle seat 15 and the pump shaft 13, a pressure relief valve assembly 6 is arranged on the throttle seat 15, the pressure relief valve assembly 6 is connected with an outlet pipe 7, the outlet pipe 7 is communicated with the outside of the sealed cavity 16 in the sealed cavity 16, an inlet pipe 8 is further arranged on the pump coupling body 10, and the inlet pipe 8 is communicated with the inside of the pump coupling body 10 from the outside of the pump coupling body 10.
Specifically, a mechanical seal 3 is arranged between the lower end cover 2 and the pump coupling body 10. And a skeleton seal 9 is arranged on one side, close to the impeller 14, between the throttle seat 15 and the pump shaft 13. The coupler 4 is made of heat insulation materials. An inner cavity hole 5 is formed in the throttling seat 15, and the inner cavity hole 5 is communicated with the pressure relief valve assembly 6. The inner cavity hole 5 comprises a first inner cavity 51, a second inner cavity 52, a third inner cavity 53 and a fourth inner cavity 54 which are arranged along the length direction of the pump shaft 13, and the relief valve assembly 6 comprises a first relief valve 61, a second relief valve 62, a third relief valve 63 and a fourth relief valve 64; first inner chamber 51 with first relief pressure valve 61 communicates, second inner chamber 52 with second relief pressure valve 62 communicates, third inner chamber 53 with third relief pressure valve 63 communicates, fourth inner chamber 54 with fourth relief pressure valve 64 communicates, first relief pressure valve 61 second relief pressure valve 62 third relief pressure valve 63 with fourth relief pressure valve 64 respectively with outlet pipe 7 communicates, just first relief pressure valve 61 second relief pressure valve 62 third relief pressure valve 63 with fourth relief pressure valve 64 keeps away from in proper order the shaft coupling 4 sets up. The pressure of the feed liquid in the inlet pipe 8 is not less than the pressure of the medium conveyed by the impeller 14. The relief pressure of the fourth pressure reducing valve 64, the third pressure reducing valve 63, the second pressure reducing valve 62, and the first pressure reducing valve 61 is gradually reduced. The relief pressure of the first relief valve 61 is greater than the relief pressure of the outlet pipe 7. The pressure relief pressure of the fourth pressure reducing valve 64 is smaller than the pressure of the medium conveyed by the impeller 14.
The working principle is as follows: referring to fig. 1 and 2, in the embodiment of the present invention, a mechanical seal 3 is first installed between a lower end cap 2 of a motor 1 and a pump coupling body 10, and a skeleton seal 9 is installed between a throttle seat 15 and a pump shaft 13 at a side close to an impeller 14, so that the mechanical seal 3 and the skeleton seal 9 can improve the sealing effect; secondly, the coupling 4 of the embodiment of the invention is made of a heat insulation material or a material with a low heat transfer coefficient, so that the heat transfer of the motor shaft 12 to the pump shaft 13 can be reduced.
Besides, in the embodiment of the invention, the inner cavity hole 5 and the relief valve assembly 6 are arranged in the sealed cavity 16 formed by the pump coupling body 10, the lower end cover 2 and the pump shell 11, the inlet pipe 8 and the outlet pipe 7 are arranged on the pump coupling body 10, when in actual use, a medium with a cooling pressure of P6 can be introduced into the inlet pipe 8, the pressure of the medium conveyed by the impeller 14 is P5 and P6 is more than P5, meanwhile, the hydraulic pressures of the first pressure reducing valve 61, the second pressure reducing valve 62, the third pressure reducing valve 63 and the fourth pressure reducing valve 64 which are arranged side by side are P1, P2, P3 and P4 respectively, P5 is more than P4 and P3 is more than P2 and P1, and the relief pressure of the outlet pipe 7 is P0 and P1 is more than P0. Therefore, in the embodiment of the invention, firstly, a high-pressure low-temperature medium is introduced into the sealed cavity 16, after the high-pressure low-temperature medium is introduced into the sealed cavity 16, the temperature of the sealed cavity 16 can be reduced, the influence of the high-pressure high-temperature medium outside the throttle seat 15 on the end of the motor 1 is weakened, meanwhile, the hydraulic pressure of the first pressure reducing valve 61, the second pressure reducing valve 62, the third pressure reducing valve 63 and the fourth pressure reducing valve 64 of the sealed cavity 16 along the length direction of the pump shaft 13 is gradually increased, the pressure relief pressure is larger on the side closer to the throttle seat 15, and the pressure relief pressure is smaller on the side closer to the motor shaft 12, so that a pressure relief gradient can be formed on the end side of the motor 1, a certain annular gap exists between the throttle seat 15 and the pump shaft 13, an orifice is formed, when the cooling medium rapidly flows through the orifice and is discharged by the pressure relief valve assembly 6, the hydrostatic pressure is converted into kinetic energy according to the fluid mechanics principle, and the pressure of the sealed cavity 16 is reduced, the specific process is as follows: through the fourth cavity 54 and the fourth pressure reducing valve 64, the pressure drop is P4, through the third cavity 53 and the third pressure reducing valve 63, the pressure drop is P3, through the second cavity 52 and the second pressure reducing valve 62, the pressure drop is P2, through the first cavity 51 and the first pressure reducing valve 61, the pressure drop is P1; the mechanical seal 3 is arranged on the lower end cover 2 of the motor 1 and the pump coupling body 10, in the pump coupling body 10, because a cooling medium belongs to a high-pressure medium, one part of the cooling medium can overflow to a pump section through the mechanical seal, the other part of the cooling medium enters the throttling pressure reducing device 5 through the framework seal and flows out through the throttle valve assembly 6 and the water outlet pipe 7, the cooling of the pump shaft 13 and the mechanical seal 3 is realized, the pressure of the shaft extension end of the motor is reduced, the working environment of the motor under normal temperature and normal pressure is realized, the high-reliability operation of the electric pump is improved, and the manufacturing cost is reduced.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the embodiments of the method, reference is made to the partial description of the embodiments of the apparatus for the relevant points. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A high temperature, high pressure pump, comprising: the pump comprises a motor (1), a pump coupling body (10), a pump shell (11), a motor shaft (12), a pump shaft (13) and an impeller (14), wherein a lower end cover (2) is arranged at one end of the motor (1), the pump coupling body (10) is connected between the lower end cover (2) and the pump shell (11), and the pump coupling body (10), the lower end cover (2) and the pump shell (11) form a sealed cavity (16); one end of the motor shaft (12) is arranged inside the motor (1), the other end of the motor shaft (12) extends into the pump coupling body (10), one end of the pump shaft (13) is arranged in the pump coupling body (10), the other end of the pump shaft (13) is arranged in the pump shell (11), the motor shaft (12) and the pump shaft (13) are connected through a shaft coupling (4), and one end, located in the pump shell (11), of the pump shaft (13) is connected with the impeller (14); a throttle seat (15) is arranged in the sealed cavity (16),
throttle seat (15) cover is established on pump shaft (13), just throttle seat (15) with there is the clearance between pump shaft (13), just be equipped with relief valve subassembly (6) on throttle seat (15), relief valve subassembly (6) are connected with outlet pipe (7), outlet pipe (7) by communicate in sealed cavity (16) to sealed cavity (16) outside, still be equipped with import pipe (8) on pump machine coupling body (10), import pipe (8) by the pump machine coupling body (10) outside communicates to pump machine coupling body (10) are inboard.
2. A high-temperature high-pressure pump according to claim 1, characterized in that a mechanical seal (3) is provided between the lower end cover (2) and the pump attachment body (10).
3. A high-temperature and high-pressure pump according to claim 1, characterized in that a skeleton seal (9) is provided between the throttle seat (15) and the pump shaft (13) on the side close to the impeller (14).
4. A high-temperature high-pressure pump according to claim 1, characterized in that the coupling (4) is of a thermally insulating material.
5. A high-temperature high-pressure pump according to claim 1, characterized in that said orifice seat (15) is provided with an internal cavity hole (5), said internal cavity hole (5) being in communication with said relief valve assembly (6).
6. A high temperature and high pressure pump according to claim 5 wherein the bore (5) comprises a first (51), second (52), third (53) and fourth (54) internal cavities along the length of the pump shaft (13), and the pressure relief valve assembly (6) comprises a first (61), second (62), third (63) and fourth (64) pressure relief valve; first inner chamber (51) with first relief pressure valve (61) intercommunication, second inner chamber (52) with second relief pressure valve (62) intercommunication, third inner chamber (53) with third relief pressure valve (63) intercommunication, fourth inner chamber (54) with fourth relief pressure valve (64) intercommunication, first relief pressure valve (61) second relief pressure valve (62) third relief pressure valve (63) with fourth relief pressure valve (64) respectively with outlet pipe (7) intercommunication, just first relief pressure valve (61) second relief pressure valve (62) third relief pressure valve (63) and fourth relief pressure valve (64) are kept away from in proper order shaft coupling (4) set up.
7. A high-temperature high-pressure pump according to claim 6, characterized in that the inlet pressure in the inlet pipe (8) is not less than the pressure at which the impeller (14) delivers the medium.
8. A high temperature and high pressure pump according to claim 7 wherein the pressure relief pressure of the fourth pressure reducing valve (64), the third pressure reducing valve (63), the second pressure reducing valve (62) and the first pressure reducing valve (61) is gradually reduced.
9. A high temperature and high pressure pump according to claim 7, characterized in that the pressure relief pressure of the first pressure relief valve (61) is greater than the pressure relief pressure of the outlet pipe (7).
10. A high temperature and high pressure pump according to claim 7, characterized in that the pressure relief pressure of the fourth pressure reducing valve (64) is smaller than the pressure at which the impeller (14) delivers the medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915097.9A CN113417866B (en) | 2021-08-10 | 2021-08-10 | High-temperature high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915097.9A CN113417866B (en) | 2021-08-10 | 2021-08-10 | High-temperature high-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113417866A CN113417866A (en) | 2021-09-21 |
| CN113417866B true CN113417866B (en) | 2022-09-06 |
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ID=77718934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110915097.9A Active CN113417866B (en) | 2021-08-10 | 2021-08-10 | High-temperature high-pressure pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN113417866B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838010B (en) * | 2022-05-27 | 2023-02-07 | 浙江登丰泵业有限公司 | Cavitation-resistant high-temperature high-pressure pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153533A (en) * | 2010-01-26 | 2011-08-11 | Torishima Pump Mfg Co Ltd | Circulation pump |
| JP2013087622A (en) * | 2011-10-13 | 2013-05-13 | Hitachi Plant Technologies Ltd | Pump |
| CN103195738A (en) * | 2013-04-12 | 2013-07-10 | 上海阿波罗机械股份有限公司 | Residual heat removal pump |
| CN203453112U (en) * | 2013-07-25 | 2014-02-26 | 淄博博山鲁明化工设备有限公司 | Plastic centrifugal pump |
| CN105673579A (en) * | 2016-03-16 | 2016-06-15 | 邢宇 | High-pressure-resistant washing system with multiple mechanical seals |
| CN111828338A (en) * | 2019-04-23 | 2020-10-27 | 苏尔寿管理有限公司 | Centrifugal pump |
-
2021
- 2021-08-10 CN CN202110915097.9A patent/CN113417866B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011153533A (en) * | 2010-01-26 | 2011-08-11 | Torishima Pump Mfg Co Ltd | Circulation pump |
| JP2013087622A (en) * | 2011-10-13 | 2013-05-13 | Hitachi Plant Technologies Ltd | Pump |
| CN103195738A (en) * | 2013-04-12 | 2013-07-10 | 上海阿波罗机械股份有限公司 | Residual heat removal pump |
| CN203453112U (en) * | 2013-07-25 | 2014-02-26 | 淄博博山鲁明化工设备有限公司 | Plastic centrifugal pump |
| CN105673579A (en) * | 2016-03-16 | 2016-06-15 | 邢宇 | High-pressure-resistant washing system with multiple mechanical seals |
| CN111828338A (en) * | 2019-04-23 | 2020-10-27 | 苏尔寿管理有限公司 | Centrifugal pump |
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| Publication number | Publication date |
|---|---|
| CN113417866A (en) | 2021-09-21 |
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