CN2881068Y - Centrifugal vacuum deaerator - Google Patents
Centrifugal vacuum deaerator Download PDFInfo
- Publication number
- CN2881068Y CN2881068Y CN 200620025731 CN200620025731U CN2881068Y CN 2881068 Y CN2881068 Y CN 2881068Y CN 200620025731 CN200620025731 CN 200620025731 CN 200620025731 U CN200620025731 U CN 200620025731U CN 2881068 Y CN2881068 Y CN 2881068Y
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- CN
- China
- Prior art keywords
- vacuum
- liquid level
- impeller
- vacuum degassing
- degasser
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- Expired - Fee Related
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Abstract
The utility model relates to a centrifugal degasser, which resolves the problems that the existing degasser can easily cause the overhigh liquid level in the vacuum container, which is sucked out by the vacuum pump, thus causing the damage of the equipment. The utility model installs a pressure-balanced liquid level control device on the top cover of a vacuum degassing container and the device comprises a gas-guide base mounted on the top cover, a closing plug, an offsetting spring, a gas-guide tube and a liquid level float. The liquid level control device can improve the vacuum degree of the centrifugal degasser to the maximum degree, reinforce the degassing effects, control the height of the liquid level in the vacuum container automatically and reliably and guarantee the safe operation of the centrifugal degasser. An inversed cone umbrella type plate provided by the utility model enlarges the circulation surface in the degassing process of the drilling fluid, reduces the thickness of the liquid flow, strengthens the collision crushing of the drilling fluid being shot from the jet orifice of the hollow shaft impeller and improves the degassing efficiency of the degasser. The pressure volute chamber structure can economize the materials, convenient for installation and debugging.
Description
[technical field]: the utility model relates to a kind of centrifugal degasser of handling gas cut drilling fluid.
[background technology]: in drilling engineering, when invading gas in the drilling fluid, will cause that performance such as drilling fluid proportion changes, and influence normally carrying out of drillng operation, and might cause comparatively serious accident generation.In drilling engineering, generally use deaerator that the intrusion gas in the drilling fluid is removed.
When centrifugal degasser is used to handle gas cut drilling fluid, utilize vacuum pump extracting air from degassing tank, in degassing tank, form certain negative pressure.Drilling fluid is under atmospheric effect, enter degassing tank by suction pipe, then by high speed rotor rotated hollow shaft impeller, be the fast fast direction tank skin of spurting by the jet around the hollow shaft impeller again, rely on strong collision to make the bubble breaking that immerses in the drilling fluid, drilling fluid forms thin fluid layer on the degassing tank tank skin simultaneously, and the gas in the drilling fluid is overflowed, escaping gas is constantly extracted out by vacuum pump and is discharged into the safety area, keeps the stable of deaerating chamber vacuum simultaneously.Drilling fluid then owing to from reentering evacuation chamber, be discharged from centrifugal degasser under the centrifugal action of the impeller that rotates at a high speed, is realized the discharge of gas in the gas cut drilling fluid.
The safe, reliable, efficient operation of deaerator is to guarantee to invade in the drilling fluid key that gas is removed.
The principal element that influences the centrifugal degasser safe operation is that vacuum is excessive, causes the drilling fluid liquid level in the deaerator vacuum tank too high, by the vacuum pump sucking-off, causes the damage of equipment.For preventing the generation of this phenomenon, centrifugal degasser has just conservatively configured the working vacuum degree of deaerator when equipment dispatches from the factory, equipment is worked under lower vacuum.This is unfavorable for invading the effusion of the gas in the drilling fluid on the one hand, and owing to property of drilling fluid, when changing as density, drilling fluid still might be sucked out from vacuum pump simultaneously, and the safety of vacuum degasser equipment itself also can not get effective assurance.
[summary of the invention]: the utility model purpose is to solve existing deaerator to cause the drilling fluid liquid level in the vacuum tank too high easily, by the vacuum pump sucking-off, causes the problem of equipment damage, and a kind of centrifugal degasser is provided.
The centrifugal degasser that the utility model provides, comprise the degasification body, deaerator feed tube in the degasification body, the vacuum degassing jar on deaerator discharging tube and degasification body top, be provided with the hollow shaft impeller in the vacuum degassing jar, this hollow shaft impeller is driven by motor and transmission mechanism, the vacuum degassing jar is connected with vacuum pump simultaneously, it is characterized in that on the top cover of vacuum degassing jar, being equipped with the pressure balance type fluid level control device, this device comprises that the centre of installing on the top cover has the air guiding base of through hole, have steam vent in the radial position of air guiding base with respect to through hole, the air guiding base upper end installs sealing-plug additional, back-moving spring and wireway are housed in the through hole of sealing-plug inboard successively, wireway upper edge axially spaced-apart has gas port, and the liquid level float is installed in the lower end of wireway.
Back taper umbrella plate is installed on the top cover of vacuum degassing jar inboard, has one group of aperture on the back taper umbrella plate, back taper umbrella plate lower end plate directly forms the whirlpool cover plate of volute chamber.
The upper end arranged outside of the volute chamber cylindrical shell of vacuum degassing jar bottom has a sealing edge, and sealing is along last placement elaxtic seal, whirlpool lid directly be pressed against the volute chamber cylindrical shell above.
The hollow shaft impeller adopts the accessory impeller structure, promptly is provided with back blades at the back side of impeller primary blades.
Advantage of the present utility model and effect: the vacuum that centrifugal degasser can be provided to greatest extent by the pressure balance type fluid level control device that uses the utility model to provide, strengthen degassing effect, and control the vacuum innage automatically, reliably, ensure the safe operation of centrifugal degasser.
Back taper umbrella plate by using the utility model to provide has increased the circulating face in the drilling fluid degassing procedure, attenuate liquid stream thickness, and strengthened drilling fluid by the collision fragmentation in the hollow shaft impeller jet ejaculation process, improved the degassing efficiency of deaerator.
By the formula that directly the presses volute chamber structure that uses the utility model to provide, under the prerequisite that guarantees the volute chamber sealing effectiveness, the use of having saved material has also made things convenient for the Installation and Debugging work of equipment simultaneously.
By using the impeller of the employing accessory impeller structure that the utility model provides, reduce the drilling well liquid measure that is shed by throwing by slit between volute chamber whirlpool cover plate and hollow shaft impeller effectively, and make the high speed rotating of impeller more stable.
[description of drawings]:
Fig. 1 is the centrifugal degasser structural representation;
Fig. 2 is a pressure balance type fluid level control device structural representation;
Fig. 3 is a back taper umbrella plated construction schematic diagram;
Fig. 4 directly presses formula volute chamber structure structural representation;
Fig. 5 is an accessory impeller structure impeller schematic diagram.
[specific embodiment]:
Embodiment 1
As shown in the figure, number in the figure: 1 base, 2 vacuum pumps, 3 vacuum pump stacks, 4 vacuum pump admission pipes, 5 motor, 6 drive pulleys, 7 driving belts, 8 negative pulley wheels, 9 hollow shaft impellers, 10 pressure balance type fluid level control devices, 11 deaerator top covers, 12 back taper umbrella plates, 13 vacuum tanks, 14 deaerator discharging tubes, 15 deaerator feed tubes, 16 sealing thread plugs, 17 air guiding bases, 18 back-moving springs, 19 wireways, 20 connecting pins, 21 liquid level floats, the side cone-plate of 22 back taper umbrella plates, 23 whirlpool cover plates, 24 junction plates, 25 elaxtic seals, 26 volute chamber cylindrical shells, 27 primary blades, 28 width of cloth blades, 29 hollow shafts, 30 impeller seat boards.
As Fig. 1, vacuum pump 2 is installed on the base 1, form vacuum by vacuum pump admission pipe 4 intake-gas from vacuum tank 13, and the gas that pumps out is discharged into the safety area by vacuum pump stack 3, form vacuum in the vacuum tank 13, drilling fluid enters deaerator by deaerator feed tube 15 under suction function, throw away by the outage high speed centrifugation on the hollow shaft of hollow shaft impeller 9 then, side cone-plate 22 collision back gases with back taper umbrella plate are overflowed, aspirate out vacuum tank by vacuum pump, keep the vacuum in the vacuum tank, partially liq flows downward along umbrella plate surface, space between junction plate 24 flows to the vacuum tank bottom, enters volute chamber after liquid level reach a certain height; Another part drilling fluid penetrates the hole from the side cone-plate 22 of back taper umbrella plate, and after the collision of vacuum tank skin, gas is overflowed, aspirate out vacuum tank by vacuum pump, keep the vacuum in the vacuum tank, liquid flows to the vacuum tank bottom downwards along the vacuum tank skin, enters volute chamber after liquid level reach a certain height.The motor 5 that is installed on the vacuum tank 13 rotates at a high speed by drive pulley 6, driving belt 7 and negative pulley wheel 8 drive hollow shaft impellers, the liquid that enters hollow shaft is thrown away by the outage high speed centrifugation on the hollow shaft, impeller is rotated the drilling fluid that will enter volute chamber and is discharged deaerator by deaerator discharging tube 14 on the other hand, finishes gas, the liquid separating treatment process of whole gas cut drilling fluid.
As Fig. 2, air guiding base 17 is installed on the deaerator top cover 11, sealing thread plug 16 is installed on through hole top in the air guiding base 17, through hole in the air guiding base 17 is consistent with the vacuum of vacuum tank, when the liquid level in the degassing tank is elevated to 21 picking-ups of liquid level float, liquid level float 21 drives wireway 19 by connecting pin 20 and moves up, wireway upper edge axially spaced-apart has gas port, when the gas port on the wireway 19 communicates with ambient atmosphere by the steam vent that is disposed radially on the air guiding base 17, vacuum descends in the vacuum tube, liquid level descends, liquid level float 21 drives wireway 19 and descends, conducting interface between wireway and ambient atmosphere reduces or closes, and keeps the vacuum in the vacuum tank.Smooth and easy in order to guarantee that liquid level float 21 moves up and down, a pilot sleeve can be installed below the top cover of liquid level float 21 peripheries.
As Fig. 3, the side cone-plate 22 upper edge umbrella plate faces of back taper umbrella plate have one group of aperture, and side cone-plate lower edge connects with whirlpool cover plate 23 by radially-arranged junction plate 24.
As Fig. 4, the upper end arranged outside of volute chamber cylindrical shell 26 has a sealing edge, and sealing is along last placement elaxtic seal 25, and whirlpool cover plate 23 directly is pressed against on the volute chamber cylindrical shell 26, between by elaxtic seal 25 sealing.
As Fig. 5, primary blades 27 radially is welded on impeller seat board 30 bottoms, impeller seat board 30 top welded hollow axles, and width of cloth blade 28 radially is welded on impeller seat board 30 tops, forms the accessory impeller structure.
Claims (4)
1, a kind of centrifugal degasser, comprise the degasification body, deaerator feed tube in the degasification body, the vacuum degassing jar on deaerator discharging tube and degasification body top, be provided with the hollow shaft impeller in the vacuum degassing jar, this hollow shaft impeller is driven by motor and transmission mechanism, the vacuum degassing jar is connected with vacuum pump simultaneously, it is characterized in that on the top cover of vacuum degassing jar, being equipped with the pressure balance type fluid level control device, this device comprises that the centre of installing on the top cover has the air guiding base of through hole, have steam vent in the radial position of air guiding base with respect to through hole, the air guiding base upper end installs sealing-plug additional, back-moving spring and wireway are housed in the through hole of sealing-plug inboard successively, wireway upper edge axially spaced-apart has gas port, and the liquid level float is installed in the lower end of wireway.
2, centrifugal degasser according to claim 1, it is characterized in that on the top cover of vacuum degassing jar inboard, being equipped with back taper umbrella plate, have one group of aperture on the side cone-plate of back taper umbrella plate, back taper umbrella plate lower end plate directly forms the whirlpool cover plate of volute chamber.
3, centrifugal degasser according to claim 1 and 2 is characterized in that the upper end arranged outside of the volute chamber cylindrical shell of vacuum degassing jar bottom has a sealing edge, and sealing is along last placement elaxtic seal, whirlpool lid directly be pressed against the volute chamber cylindrical shell above.
4, centrifugal degasser according to claim 1 and 2 is characterized in that the hollow shaft impeller adopts the accessory impeller structure, promptly is provided with back blades at the back side of impeller primary blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025731 CN2881068Y (en) | 2006-04-04 | 2006-04-04 | Centrifugal vacuum deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025731 CN2881068Y (en) | 2006-04-04 | 2006-04-04 | Centrifugal vacuum deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881068Y true CN2881068Y (en) | 2007-03-21 |
Family
ID=37880908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025731 Expired - Fee Related CN2881068Y (en) | 2006-04-04 | 2006-04-04 | Centrifugal vacuum deaerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881068Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587849A (en) * | 2012-03-02 | 2012-07-18 | 中国石油集团渤海石油装备制造有限公司 | Device for separating well drilling rock cuttings from well drilling waste liquid |
| CN110485953A (en) * | 2019-08-09 | 2019-11-22 | 默泰克（天津）石油装备有限公司 | A kind of novel degassing device spray tank |
| CN112377151A (en) * | 2020-11-03 | 2021-02-19 | 博科丝特工业技术(江苏)有限公司 | Solid control equipment for petroleum drilling |
| CN113153189A (en) * | 2021-04-19 | 2021-07-23 | 河南锐实达分离设备科技股份有限公司 | Vacuum degassing device for drilling fluid |
| CN113899804A (en) * | 2021-09-30 | 2022-01-07 | 国网福建省电力有限公司永安市供电公司 | Main transformer fault oil gas surface field rapid detection and judgment device and detection method thereof |
-
2006
- 2006-04-04 CN CN 200620025731 patent/CN2881068Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587849A (en) * | 2012-03-02 | 2012-07-18 | 中国石油集团渤海石油装备制造有限公司 | Device for separating well drilling rock cuttings from well drilling waste liquid |
| CN102587849B (en) * | 2012-03-02 | 2015-05-27 | 中国石油集团渤海石油装备制造有限公司 | Device for separating well drilling rock cuttings from well drilling waste liquid |
| CN110485953A (en) * | 2019-08-09 | 2019-11-22 | 默泰克（天津）石油装备有限公司 | A kind of novel degassing device spray tank |
| CN112377151A (en) * | 2020-11-03 | 2021-02-19 | 博科丝特工业技术(江苏)有限公司 | Solid control equipment for petroleum drilling |
| CN113153189A (en) * | 2021-04-19 | 2021-07-23 | 河南锐实达分离设备科技股份有限公司 | Vacuum degassing device for drilling fluid |
| CN113899804A (en) * | 2021-09-30 | 2022-01-07 | 国网福建省电力有限公司永安市供电公司 | Main transformer fault oil gas surface field rapid detection and judgment device and detection method thereof |
| CN113899804B (en) * | 2021-09-30 | 2024-04-16 | 国网福建省电力有限公司永安市供电公司 | Device and method for rapidly detecting and judging gas in main transformer fault oil on site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 |