CN114887399A - Vacuum steam-water separation device and diesel engine vacuum self-priming pump - Google Patents
Vacuum steam-water separation device and diesel engine vacuum self-priming pump Download PDFInfo
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- CN114887399A CN114887399A CN202210411134.7A CN202210411134A CN114887399A CN 114887399 A CN114887399 A CN 114887399A CN 202210411134 A CN202210411134 A CN 202210411134A CN 114887399 A CN114887399 A CN 114887399A
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- vacuum
- steam
- pump
- diesel engine
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
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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
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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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
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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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The invention provides a vacuum steam-water separation device and a diesel engine vacuum self-priming pump.A centrifugal pump is connected to one side of a diesel engine, an auxiliary vacuum pump is dynamically connected to the other side of the diesel engine, the water inlet end of the centrifugal pump is communicated with a vacuum exhaust pipe, and the vacuum exhaust pipe is communicated with a water inlet; the upper part of the vacuum exhaust pipe is provided with a vacuum steam-water separation device, the vacuum steam-water separation device comprises a sealed box body, a liquid level floating ball system, a waterproof sealing box upper cover and the side surface of a pressure gauge are arranged in the sealed box body, and an exhaust opening is communicated with an exhaust pipeline which is communicated with an auxiliary vacuum pump; the lower part of waterproof seal box upper cover sets up the air flue switch, and air flue switch department sets up the air flue switch thimble, and fixed floater lifter is connected to air flue switch thimble sub-unit, and fixed floater lifter sub-unit connection liquid level floater. The invention ensures that the gas of the air exhaust pipeline is dry and has no water vapor during starting, avoids the emulsification of the lubricating oil of the vacuum pump, improves the starting vacuum degree, shortens the water absorption response time and prolongs the service life of the vacuum pump.
Description
Technical Field
The invention relates to a high vacuum self-priming pump driven by an outdoor diesel engine without a power supply, belongs to the field of equipment, and particularly relates to a vacuum steam-water separation device and a corresponding diesel engine vacuum self-priming pump.
Background
Along with the development of real estate in large cities in China, a plurality of high-rise residential districts and underground parking garages of office buildings are built, rainwater flows backwards in short time to enter low-lying places such as tunnels, underground parking garages and subways, and a large number of cars and rail transit equipment facilities are submerged. The emergency drainage equipment is used for emergency drainage operation in disaster areas where large-scale equipment with high fall cannot enter. Against this background, i developed a high vacuum self-priming pump for outdoor use without a power supply using a diesel engine as the drive.
The technical scheme of the like products in the current market has the following problems: the vacuum self-sucking pump of the same type in the domestic market at present has the technical defects of low water-sucking height, long water-sucking time, incapability of idling for a long time, easiness in water inlet of the vacuum pump due to the fact that a steam-water separation device is not sealed, reduction in vacuum degree and the like.
Disclosure of Invention
The invention provides a vacuum steam-water separation device and a corresponding diesel engine vacuum self-priming pump, and aims to dry gas in an air exhaust pipeline without water vapor during starting, avoid emulsification of lubricating oil of a vacuum pump, improve starting vacuum degree, shorten water absorption response time and prolong the service life of the vacuum pump.
In order to achieve the purpose, the vacuum steam-water separation device provided by the invention comprises a sealing box body, wherein the lower part of the sealing box body is communicated with a vacuum exhaust pipe of a centrifugal pump, a liquid level floating ball system, a waterproof sealing box upper cover and a pressure gauge are arranged in the sealing box body, a sealing air passage cavity is arranged on the upper part of the waterproof sealing box upper cover, an exhaust opening is arranged on the side surface of the sealing air passage cavity and communicated with an exhaust pipeline, the exhaust pipeline is communicated with an exhaust opening of an auxiliary vacuum pump, an air passage switch communicated with the sealing box body is arranged on the lower part of the waterproof sealing box upper cover, an air passage switch thimble is arranged at the air passage switch, the lower part of the air passage switch thimble is connected with a fixed floating ball lifting rod, the lower part of the fixed floating ball lifting rod is connected with a liquid level, and an adjustable balancing weight is arranged on the lower part of the liquid level floating ball.
Preferably, the air passage switch is arranged at one end of the upper cover of the waterproof sealing box, a sealing plate is arranged around the air passage switch, and an isolation guide plate is arranged below the air passage switch.
Preferably, a labyrinth seal air passage is arranged in the seal air passage cavity, the labyrinth seal air passage is provided with a plurality of steam baffles, and the labyrinth seal air passage is divided into a plurality of steam water chambers.
Preferably, an air exhaust port is provided at a terminal end portion of the labyrinth seal air passage, and an opening lower edge of the air exhaust port is higher than a bottom surface of the seal air passage chamber.
Preferably, the steam baffles between the steam chambers at all levels are arranged along the steam flowing direction and are gradually increased.
Preferably, a detection port is arranged on one side of the first steam water chamber with the extraction port as the starting end, a detection switch is arranged on the detection port, and the lower edge of an opening of the detection port is not higher than the bottom surface of the sealed air passage chamber.
A diesel engine vacuum self-priming pump comprises a diesel engine, wherein one side of the diesel engine is in power connection with a centrifugal pump, the other side of the diesel engine is in power connection with an auxiliary vacuum pump, the water inlet end of the centrifugal pump is communicated with a vacuum exhaust pipe, the vacuum exhaust pipe is communicated with a water inlet, and the upper part of the vacuum exhaust pipe is further communicated with the vacuum steam-water separation device in any one of claims 1 to 6.
Preferably, the centrifugal pump comprises a pump body, an impeller, a sealing element, a sealing oil chamber, a bearing lubricating chamber, a steel sheet coupler and a concentric fixed coupling disc of the diesel engine, wherein an outlet of the pump body of the centrifugal pump is connected with a 45-degree elbow with a check valve function and a mechanical vacuum check valve switching device.
Compared with the related art, the vacuum steam-water separation device and the corresponding diesel engine vacuum self-priming pump provided by the invention have the following beneficial effects:
the vacuum steam-water separation device solves the problems that the vacuum steam-water separation device is not in fit with the opening and closing of the vacuum steam-water separation device, steam and water are sucked by a vacuum system to damage a vacuum pump, lubricating oil of the vacuum pump is emulsified, and the vacuum degree is reduced.
The vacuum self-priming pump of the diesel engine and the vacuum system run synchronously, the vacuum system is immediately vacuumized after the diesel engine is started, the pump can run in an idle running mode, vacuum negative pressure is formed at a suction inlet of the pump after air in a water suction pipeline and a pump cavity is pumped by the vacuum system, the pump is quickly put into drainage operation, the water suction height is high, and the water suction starting time is short.
Drawings
FIG. 1 is a front view of the present embodiment;
FIG. 2 is a perspective view of the upper lid of the waterproof sealing case of FIG. 1;
FIG. 3 is a top view of the upper lid of the waterproof sealing box;
FIG. 4 is a perspective view of the upper cover of the waterproof sealing case;
reference numbers in the figures:
1. the device comprises a diesel engine, 2, a connecting frame with a sealed oil chamber bearing, 3, a centrifugal pump, 301, a pump body, 302, 45-degree elbows with check valve functions, 303, a mechanical vacuum check valve switching device, 4, an auxiliary vacuum pump, 5, a vacuum exhaust pipe, 6, a water inlet quick-connection Baoer joint, 7, a vacuum steam-water separation device mounting seat, 8, a vacuum steam-water separation device, 801, a sealed box body, 802, a waterproof sealed box upper cover, 803, an exhaust opening, 804, an exhaust pipeline, 805, an air passage switch, 806, an air passage switch thimble, 807, a fixed floating ball lifting rod, 808, a liquid level floating ball, 809, a balancing weight, 810, a sealing plate, 811, a sealed air passage cavity, 812, a labyrinth sealed air passage, 813, a water vapor baffle, 814, a steam chamber, 815, a detection opening, 816, a detection switch, 9 and a pressure gauge.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
As shown in fig. 1 and 2, a diesel engine vacuum self-priming pump comprises a diesel engine 1, wherein one side of the diesel engine 1 is in power connection with a centrifugal pump 3 through a connecting frame 2 with a sealed oil chamber bearing, the other side of the diesel engine is in power connection with an auxiliary vacuum pump 4, the water inlet end of the centrifugal pump 3 is communicated with a vacuum exhaust pipe 5, and the vacuum exhaust pipe 5 is communicated with a water inlet and is connected with a Baoer joint 6. The vacuum steam-water separation device comprises a vacuum steam-water separation device mounting seat 7, the vacuum steam-water separation device mounting seat 7 can be a round tube type or a square seat body, the vacuum extraction pipe 5 is arranged inside the vacuum steam-water separation device mounting seat 7, a vacuum steam-water separation device 8 is installed on the upper portion of the vacuum steam-water separation device mounting seat 7, the vacuum steam-water separation device 8 comprises a sealing box body 801, the lower portion of the sealing box body 801 is communicated with the vacuum extraction pipe 5, and a liquid level floating ball system, an air flue sealing system and a pressure gauge 9 are arranged in the sealing box body 801. Specifically, as shown in fig. 1 to 4, the vacuum steam-water separation device 8 includes a sealed box 801 and a waterproof sealed box upper cover 802, an air extraction opening 803 is disposed on a side surface of the waterproof sealed box upper cover 802, the air extraction opening 803 is communicated with an air extraction pipeline 804, and the air extraction pipeline 804 is communicated with the auxiliary vacuum pump 4. An air passage switch 805 is arranged at the lower part of the upper cover 802 of the waterproof sealing box, an air passage switch thimble 806 is arranged at the position of the air passage switch 805, the lower part of the air passage switch thimble 806 is connected with a fixed floating ball lifting rod 807, and the lower part of the fixed floating ball lifting rod 807 is connected with a liquid level floating ball 808. The lower part of the liquid level floating ball 808 is provided with a balancing weight 809, the balancing weight 809 is arranged to be adjustable in multiple blocks, the sensitivity of the liquid level floating ball is adjusted by adjusting the balance weight of the balancing weight, the balance between the liquid level height and the opening and closing action of the air channel switch thimble 806 is adjusted, the sloshing of liquid at a higher liquid level is reduced, and the probability that steam and water enter the air suction opening 803 is further reduced.
As a secondary precaution structure, a sealing plate 810 is arranged around the air passage switch 805, the air passage switch 805 is arranged at one end of the waterproof sealing box upper cover 802, and an isolation guide plate is arranged below the air passage switch 805 and used for isolating water flowers which may be excited by flow guiding and reducing steam and water from entering the air passage switch.
As a third-level precaution structure, a sealed air channel cavity 811 is arranged on the upper portion of the waterproof sealing box upper cover 802, a labyrinth sealed air channel 812 is arranged in the sealed air channel cavity 811, a plurality of water vapor baffles 813 are arranged on the labyrinth sealed air channel 812, the labyrinth sealed air channel 812 is divided into a plurality of water vapor chambers 814, the air exhaust port 803 is arranged at the terminal portion extending along the labyrinth sealed air channel 812, the lower edge of the opening of the air exhaust port 803 is higher than the bottom surface of the sealed air channel cavity 811, and even if part of water vapor enters the waterproof sealing box upper cover 802, under the layer-by-layer isolation effect of the sealed air channel cavity 811, the water in the water vapor is subjected to multistage settlement and convergence before entering the air exhaust port 803, and is finally isolated in each level of water vapor chambers 814. The steam baffles 813 between the steam water chambers 814 at all levels are gradually increased along the steam flowing direction, a detection port 815 is arranged at one side of the first steam water chamber 814 with the air suction port 803 as the starting end, a detection switch 816 is arranged on the detection port 815, and finally settled steam water flows back into the first steam water chamber 814 at the earliest stage and finally flows out through the detection port 815. Conventional start during the diesel engine vacuum self priming pump, open detection switch 816 in advance, see whether have soda to flow in the detection mouth 816, and then whether have ponding in detecting sealed air flue cavity 811, and then the gas drying of the gas exhaust pipeline 804 when guaranteeing to start does not have steam, avoids vacuum pump lubricating oil to appear emulsifying, improves the start-up vacuum, shortens the response time that absorbs water, improves vacuum pump life.
Under the heavier shut down waiting operating mode of steam in outdoor service environment, make the detection mouth normally open, form and the route of sealed box, avoid morning dew, steam from detecting mouthful entering waterproof seal box upper cover, steam is to the reflux of extraction opening when causing the start.
The system overcomes the defect that the sealing opening and closing of the vacuum steam-water separation device are not fit, so that steam and water are sucked by the vacuum system to damage the vacuum pump, the lubricating oil of the vacuum pump is emulsified, and the vacuum degree is reduced.
The centrifugal pump 3 mainly comprises a pump body 301, an impeller, a sealing element, a sealing oil chamber, a bearing lubricating chamber, a steel sheet coupler and a concentric fixed coupling disc of a diesel engine, wherein an outlet of the pump body 301 of the centrifugal pump 3 is connected with a 45-degree elbow 302 with a check valve function and a mechanical vacuum check valve switching device 303.
The system overcomes the defect that the pump starts to idle, the pump is provided with the oil lubrication sealing cavity, the mechanical seal is always in the oil lubrication cavity, and the sealing glue is prevented from dry friction, damage and water leakage due to water shortage and idle running, and high vacuum negative pressure of the system is prevented from being damaged due to air leakage. The pump and the vacuum system run synchronously, when the diesel engine is started, the vacuum system is immediately put into vacuum pumping, the pump can run in an idle running mode, when air in the water suction pipeline and the pump cavity is pumped by the vacuum system, vacuum negative pressure is formed at a pump suction inlet, the pump is quickly put into drainage operation, the water suction height is high, and the water suction starting time is short.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. A vacuum steam-water separation device is characterized in that: the sealing device comprises a sealing box body, the lower part of the sealing box body is communicated with a vacuum exhaust tube of a centrifugal pump, a liquid level floating ball system, a waterproof sealing box upper cover and a pressure gauge are arranged in the sealing box body, a sealing air passage cavity is arranged on the upper part of the waterproof sealing box upper cover, an exhaust opening is arranged on the side surface of the sealing air passage cavity, the exhaust opening is communicated with an exhaust pipeline, the exhaust opening of the exhaust pipeline is communicated with an auxiliary vacuum pump, an air passage switch of the sealing box upper cover is arranged at the lower part of the waterproof sealing box upper cover, an air passage switch thimble is arranged at the air passage switch, a floating ball lifting rod is fixed at the lower part of the air passage switch thimble, a liquid level floating ball is connected at the lower part of the floating ball lifting rod, and an adjustable balancing weight is arranged at the lower part of the liquid level floating ball.
2. The vacuum steam-water separation device according to claim 1, characterized in that: the air flue switch is arranged at one end of the upper cover of the waterproof sealing box, a sealing plate is arranged around the air flue switch, and an isolation guide plate is arranged below the air flue switch.
3. The vacuum steam-water separation device according to claim 1, characterized in that: the sealed air flue cavity is internally provided with a labyrinth sealed air flue, the labyrinth sealed air flue is provided with a plurality of steam baffles, and the labyrinth sealed air flue is divided into a plurality of steam water chambers.
4. A vacuum steam-water separator according to claim 3, characterized in that: the air exhaust opening is arranged at the terminal part of the labyrinth seal air passage, and the lower edge of the opening of the air exhaust opening is higher than the bottom surface of the cavity of the seal air passage.
5. A vacuum steam-water separator according to claim 3, characterized in that: the steam baffles between the steam chambers at all levels are along the steam flowing direction and are gradually increased.
6. A vacuum steam-water separator according to claim 3, characterized in that: and a detection port is arranged on one side of the first steam water chamber with the extraction port as the starting end, a detection switch is arranged on the detection port, and the lower edge of an opening of the detection port is not higher than the bottom surface of the sealed air passage cavity.
7. A diesel engine vacuum self-priming pump is characterized in that: the vacuum steam-water separation device comprises a diesel engine, wherein one side of the diesel engine is in power connection with a centrifugal pump, the other side of the diesel engine is in power connection with an auxiliary vacuum pump, a water inlet end of the centrifugal pump is communicated with a vacuum exhaust pipe, the vacuum exhaust pipe is communicated with a water inlet, and the upper part of the vacuum exhaust pipe is also communicated with the vacuum steam-water separation device according to any one of claims 1 to 6.
8. The diesel engine vacuum self-primer pump of claim 7, wherein: the centrifugal pump comprises a pump body, an impeller, a sealing element, a sealing oil chamber, a bearing lubricating chamber, a steel sheet coupler and a concentric fixed connecting disc of the diesel engine, wherein a pump body outlet of the centrifugal pump is connected with a 45-degree elbow with a check valve function and a mechanical vacuum check valve switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411134.7A CN114887399A (en) | 2022-04-19 | 2022-04-19 | Vacuum steam-water separation device and diesel engine vacuum self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411134.7A CN114887399A (en) | 2022-04-19 | 2022-04-19 | Vacuum steam-water separation device and diesel engine vacuum self-priming pump |
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| Publication Number | Publication Date |
|---|---|
| CN114887399A true CN114887399A (en) | 2022-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210411134.7A Pending CN114887399A (en) | 2022-04-19 | 2022-04-19 | Vacuum steam-water separation device and diesel engine vacuum self-priming pump |
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| CN (1) | CN114887399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814453A (en) * | 2022-12-13 | 2023-03-21 | 江阴市新远见工程有限公司 | Steam recovery device for municipal sludge regeneration treatment equipment |
-
2022
- 2022-04-19 CN CN202210411134.7A patent/CN114887399A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814453A (en) * | 2022-12-13 | 2023-03-21 | 江阴市新远见工程有限公司 | Steam recovery device for municipal sludge regeneration treatment equipment |
| CN115814453B (en) * | 2022-12-13 | 2023-12-01 | 江苏大贞精筑科技有限公司 | A vapor recovery unit for municipal sludge regeneration treatment facility |
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