CN108869310A - A kind of gas-liquid separation device on centrifugal pump - Google Patents
A kind of gas-liquid separation device on centrifugal pump Download PDFInfo
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- CN108869310A CN108869310A CN201810335808.3A CN201810335808A CN108869310A CN 108869310 A CN108869310 A CN 108869310A CN 201810335808 A CN201810335808 A CN 201810335808A CN 108869310 A CN108869310 A CN 108869310A
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- liquid
- baffle
- gas
- tank body
- centrifugal pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0073—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042
- B01D19/0078—Degasification of liquids by a method not covered by groups B01D19/0005 - B01D19/0042 by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The gas-liquid separation device that the present invention provides a kind of on centrifugal pump, belongs to field of mechanical technique.It solves existing centrifugal pump and is unable to the technical problems such as conveyer belt gas liquid.A kind of gas-liquid separation device on centrifugal pump, including pedestal, the internal tank body with solution chamber is installed on pedestal, tank body side is equipped with inlet, the other side of tank body is equipped with liquid outlet, baffle one and baffle two are installed in tank body, baffle one is located in the liquid inlet place, baffle two is located at liquid outlet, filter screen is installed between baffle one and baffle two, solution chamber is divided into upper admission chamber for baffle one, baffle two and filter screen and lower sap cavity, inlet out are connected to upper admission chamber, and liquid outlet is connected to lower sap cavity out.The present invention has the characteristics that the advantages of separating gas in liquid.
Description
Technical field
The invention belongs to field of mechanical technique, especially a kind of gas-liquid separation device on centrifugal pump.
Background technique
Before water pump starts, pump and water inlet are first filled into water, after pump operation, in the centrifugation that impeller high speed rotation generates
Under the action of power, the water in impeller channel is thrown toward surrounding, is pressed into spiral case, and impeller eye forms vacuum, and the water in pond is in the external world
It is inhaled into along suction hose supplemented with this space under atmospheric pressure.Then the water sucked is thrown away through spiral case by impeller again and enters
The mouth of a river.It can be seen that can continuously absorb water if centrifugal pump impeller constantly rotates, press water, water can be raised continuously from lower
To eminence or a distant place.In conclusion under the action of centrifugal pump is the centrifugal force as caused by the high speed rotation in impeller, by water
It mentions and hoisting, therefore claim centrifugal pump.
But the pump cannot convey the liquid containing bulk gas, gas can enter impeller, destroy the true of impeller eye
Sky prevents liquid from being transported into, and has also limited to the usage range of centrifugal pump.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of gas-liquid on centrifugal pump is proposed
Separator, the invention have the characteristics that separate gas in liquid.
Object of the invention can be realized by the following technical scheme：A kind of gas-liquid separation device on centrifugal pump,
Including pedestal, which is characterized in that be installed with the internal tank body with solution chamber on the pedestal, the tank body side is set
Have an inlet, the other side of tank body is equipped with liquid outlet, be installed with baffle one and baffle two in the tank body, baffle one be located at into
At liquid mouth, baffle two is located at liquid outlet, and filter screen, baffle one, baffle two are installed between the baffle one and baffle two
With filter screen by solution chamber be divided into upper admission chamber and it is lower go out sap cavity, inlet be connected to upper admission chamber, liquid outlet with it is lower out
Sap cavity connection；The separating mechanism for gas-liquid separation is provided in the inlet；The tank body top is installed with outlet
Pipe, escape pipe are closed by check valve one, which can be such that internal gas outwardly discharges；The tank body top is also set up
There is the limiting mechanism for limiting liquid level in tank body.
The working principle of the invention is such：It is molten that liquid reduces gas in liquid on entering tank body, by separating mechanism
Xie Du goes out sub-argument in gas from liquid, enters in tank body in liquid from inlet and passes through filter screen for the gas in liquid
Bubble filters out, and bubble biggish in liquid is divided into minute bubbles, prevents centrifugal pump in running, vacuum is destroyed.
Limiting mechanism can prevent liquid admission velocity is too fast tank interior is caused to be filled up by liquid, and gas cannot be from liquid
In isolate, gas is still as liquid flows to centrifugal pump, and for liquid when being more than preset bounds, the liquid flow on tank body top is outside
Portion limits the highest liquid position of tank interior.The gas isolated can be released tank body by the escape pipe on top, prevent tank body
Interior air pressure is excessively high.
In above-mentioned gas-liquid separation device, the pedestal lower part is uniformly installed with several movable pulleys.Pass through movable pulley, side
Just the carrying of equipment.
In above-mentioned gas-liquid separation device, the tank body internal upper part is installed with baffle three, uniformly offers on baffle three
Several through-holes.The excessive velocities that baffle three can prevent liquid from entering, liquid are directly flowed out from escape pipe.
In above-mentioned gas-liquid separation device, the baffle one and inner tank wall form a feed pathway, the feed pathway
Go out liquid direction be from bottom to up；The baffle two and inner tank wall forms a liquid outlet channel, the feed liquor side of the liquid outlet channel
To for from bottom to up.The feed pathway can make liquid vertical is upward to enter in tank body, and for liquid when encountering baffle three, gas can
It to pass rapidly through baffle three, is then flowed out from escape pipe, liquid is blocked by baffle three, is then flowed out from liquid outlet channel.
In above-mentioned gas-liquid separation device, the filtering sieve bottom is installed with oscillator.First, it can be fast by oscillator
Speed divides air pocket in water, prevents air pocket from destroying the vacuum of subsequent centrifugal pump, and second, it can be by the gas oscillation in water
Out, gas is flowed up and is released from escape pipe.
In above-mentioned gas-liquid separation device, the separating mechanism include fixed cylinder, motor, helical gear one, helical gear two,
Shaft, it is several break up piece, the fixed cylinder is connected with inlet, and the shaft is rotatably arranged in fixed cylinder, described
Break up piece to be uniformly installed in shaft, break up that piece is U-shaped, the motor be installed on pedestal and the output shaft of motor vertically to
On, the output shaft of motor penetrates cylinder, and the helical gear one is coaxially installed on the output shaft of motor, the helical gear two
In coaxial fixed shaft, helical gear one is engaged with helical gear two.When entering in fixed cylinder, motor rotation, motor drives liquid
Helical gear one rotates, and helical gear one drives helical gear two to rotate, and helical gear two drives shaft rotation, and shaft drive is broken up piece and turned
Dynamic, high-speed rotation reduces the gas solubility of liquid, and gas is separated.
In above-mentioned gas-liquid separation device, the limiting mechanism includes catheter, connecting rod, cap liner, and described consolidates
It is installed with inlet tube on safety barrel, outlet tube is installed on the tank body, described catheter one end is connected on inlet tube, leads
The other end of liquid pipe is connected on outlet tube, and described connecting rod one end is hinged in inner tank wall, and the other end of connecting rod is solid
Equipped with a floating ball, the cap liner is installed in connecting rod and cap liner can close outlet tube.In the liquid of tank interior
When excessive, the buoyancy of liquid floats floating ball, and opens outlet tube, and liquid flows back in fixed cylinder from fluid reservoir, guarantees internal tool
The chamber for thering is a gas to retain.
In above-mentioned gas-liquid separation device, the outlet tube is located at the top of baffle three.Prevent liquid quickly into
When entering into tank body, connecting rod is damaged, destroys internal leakproofness.
In above-mentioned gas-liquid separation device, the inlet tube is closed by check valve two, and liquid stream can be flowed to from outlet tube
Inlet tube.In liquid at high speed flowing, prevent liquid from directly flowing in tank body from inlet tube.
Compared with prior art, the present invention has the following advantages that：
1, liquid reduces gas solubility in liquid by separating mechanism, makes sub-argument in gas from liquid on entering tank body
Out, it enters in tank body in liquid from inlet and is filtered out by filter screen by the bubble in liquid, it will be biggish in liquid
Bubble is divided into minute bubbles, prevents centrifugal pump in running, vacuum is destroyed.
2, limiting mechanism can prevent liquid admission velocity is too fast tank interior is caused to be filled up by liquid, and gas is not from liquid
It is isolated in body, gas still flows to centrifugal pump with liquid, and liquid is when being more than preset bounds, the liquid flow direction on tank body top
Outside limits the highest liquid position of tank interior.
3, the gas isolated can be released tank body by the escape pipe on top, prevent the intracorporal air pressure of tank excessively high.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Fig. 2 is the liquid flow graph after the limiting mechanism starting in the present invention.
In figure, 1, pedestal；2, tank body；3, inlet；4, liquid outlet；5, baffle one；6, baffle two；7, filter screen；8, on
Admission chamber；9, go out sap cavity down；10, check valve one；11, movable pulley；12, baffle three；13, feed pathway；14, liquid outlet channel；15,
Oscillator；16, fixed cylinder；17, motor；18, helical gear one；19, helical gear two；20, shaft；21, piece is broken up；22, catheter；
23, connecting rod；24, cap liner；25, check valve two；26, floating ball.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 to Figure 2, a kind of gas-liquid separation device on centrifugal pump, including pedestal 1 are installed on pedestal 1
Inside has a tank body 2 of solution chamber, and 2 side of tank body is equipped with inlet 3, and the other side of tank body 2 is equipped with liquid outlet 4, in tank body 2
It is installed with baffle 1 and baffle 26, baffle 1 is located in the liquid inlet at 3, and baffle 26 is located at liquid outlet 4, baffle 1 and gear
Be installed with filter screen 7 between plate 26, baffle 1, baffle 26 and filter screen 7 by solution chamber be divided into upper admission chamber 8 and under
Sap cavity 9 out, inlet 3 are connected to upper admission chamber 8, and liquid outlet 4 is connected to lower sap cavity 9 out；It is provided in inlet 3 for gas-liquid
Isolated separating mechanism；2 top of tank body is installed with escape pipe, and escape pipe is closed by check valve 1, which can make interior
Portion's gas outwardly discharges；2 top of tank body is additionally provided with the limiting mechanism for limiting liquid level in tank body 2.
Limiting mechanism can prevent liquid admission velocity is too fast to cause to be filled up inside tank body 2 by liquid, and gas cannot be from liquid
It is isolated in body, gas still flows to centrifugal pump with liquid, and liquid is when being more than preset bounds, the liquid flow on 2 top of tank body
To outside, the highest liquid position inside tank body 2 is limited.The gas isolated can be released tank body 2 by the escape pipe on top, be prevented
Air pressure only in tank body 2 is excessively high.
In above-mentioned gas-liquid separation device, 1 lower part of pedestal is uniformly installed with several movable pulleys 11.Pass through movable pulley 11, side
Just the carrying of equipment.
In above-mentioned gas-liquid separation device, it is installed with baffle 3 12 at the top of tank body 2, is uniformly offered on baffle 3 12 several
Through-hole.The excessive velocities that baffle 3 12 can prevent liquid from entering, liquid, which is directly flowed out from escape pipe, either entirely fills out tank body 2
It is full of.
In above-mentioned gas-liquid separation device, baffle 1 and 2 inner wall of tank body form a feed pathway 13, the feed pathway 13
Go out liquid direction be from bottom to up；Baffle 26 and 2 inner wall of tank body form a liquid outlet channel 14, the feed liquor side of the liquid outlet channel 14
To for from bottom to up.The feed pathway 13 can make liquid vertical is upward to enter in tank body 2, liquid when encountering baffle 3 12,
Gas can pass rapidly through baffle 3 12, then flow out from escape pipe, liquid is blocked by baffle 3 12, then from liquid outlet channel 14
Outflow.
In above-mentioned gas-liquid separation device, 7 bottom of filter screen is installed with oscillator 15.First, it can be fast by oscillator 15
Speed divides air pocket in water, prevents air pocket from destroying the vacuum of subsequent centrifugal pump, and second, it can be by the gas oscillation in water
Out, gas is flowed up and is released from escape pipe.
In above-mentioned gas-liquid separation device, separating mechanism includes fixed cylinder 16, motor 17, helical gear 1, helical gear two
19, shaft 20, it is several break up piece 21, fixed cylinder 16 is connected with inlet 3, and shaft 20 is rotatably arranged in fixed cylinder 16, breaks up
Piece 21 is uniformly installed in shaft 20, breaks up that piece 21 is U-shaped, and motor 17 is installed on pedestal 1 and the output shaft of motor 17 is vertical
Upwards, the output shaft of motor 17 penetrates cylinder, and helical gear 1 is coaxially installed on the output shaft of motor 17, and helical gear 2 19 is same
In the fixed shaft 20 of axis, helical gear 1 is engaged with helical gear 2 19.When entering in fixed cylinder 16, motor 17 rotates liquid,
Motor 17 drives helical gear 1 to rotate, and helical gear 1 drives helical gear 2 19 to rotate, and helical gear 2 19 drives 20 turns of shaft
Dynamic, the rotation of piece 21 is broken up in the drive of shaft 20, and high-speed rotation reduces the gas solubility of liquid, and gas is separated.
In above-mentioned gas-liquid separation device, limiting mechanism includes catheter 22, connecting rod 23, cap liner, connecting rod 23, Gu
It is installed with inlet tube on safety barrel 16, outlet tube is installed on tank body 2,22 one end of catheter is connected on inlet tube, catheter 22
The other end be connected on outlet tube, 23 one end of connecting rod is hinged on 2 inner wall of tank body, and the other end of connecting rod 23 is installed with one
Floating ball 26, cap liner is installed in connecting rod 23 and cap liner can close outlet tube.When liquid inside tank body 2 is excessive,
The buoyancy of liquid floats floating ball 26, and opens outlet tube, and liquid flows in fixed cylinder 16 from outlet tube, guarantees internal with one
The chamber that a gas retains.
In above-mentioned gas-liquid separation device, outlet tube is located at the top of baffle 3 12.It prevents from quickly entering in liquid
When in tank body 2, connecting rod 23 is damaged, destroys internal leakproofness.
In above-mentioned gas-liquid separation device, inlet tube is closed by check valve 2 25, and liquid stream can flow to feed liquor from outlet tube
Pipe.In liquid at high speed flowing, prevent liquid from directly flowing in tank body 2 from inlet tube.
The working principle of the invention is such：It is molten that liquid reduces gas in liquid on entering tank body 2, by separating mechanism
Xie Du goes out sub-argument in gas from liquid, and entering in tank body 2 from inlet 3 in liquid and pass through filter screen 7 will be in liquid
Bubble filters out, and bubble biggish in liquid is divided into minute bubbles, prevents centrifugal pump in running, vacuum is destroyed.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (9)
1. a kind of gas-liquid separation device on centrifugal pump, including pedestal, which is characterized in that in being installed on the pedestal
Portion has the tank body of solution chamber, and the tank body side is equipped with inlet, and the other side of tank body is equipped with liquid outlet, the tank
Be installed with baffle one and baffle two in vivo, baffle one is located in the liquid inlet place, and baffle two is located at liquid outlet, the baffle one with
Filter screen is installed between baffle two, solution chamber is divided into upper admission chamber and lower liquid out by baffle one, baffle two and filter screen
Chamber, inlet are connected to upper admission chamber, and liquid outlet is connected to lower sap cavity out；It is provided in the inlet for gas-liquid separation
Separating mechanism；The tank body top is installed with escape pipe, and escape pipe is closed by check valve one, which can make inside
Gas outwardly discharges；The tank body top is additionally provided with the limiting mechanism for limiting liquid level in tank body.
2. a kind of gas-liquid separation device on centrifugal pump according to claim 1, which is characterized in that the pedestal
Lower part is uniformly installed with several movable pulleys.
3. a kind of gas-liquid separation device on centrifugal pump according to claim 1, which is characterized in that the tank body
Internal upper part is installed with baffle three, uniformly offers several through-holes on baffle three.
4. a kind of gas-liquid separation device on centrifugal pump according to claim 1, which is characterized in that the baffle
One forms a feed pathway with inner tank wall, and the liquid direction that goes out of the feed pathway is from bottom to up；The baffle two and tank body
Inner wall forms a liquid outlet channel, and the feed liquor direction of the liquid outlet channel is from bottom to up.
5. a kind of gas-liquid separation device on centrifugal pump according to claim 1, which is characterized in that the filtering
Sieve bottom is installed with oscillator.
6. a kind of gas-liquid separation device on centrifugal pump according to claim 1, which is characterized in that the separation
Mechanism includes fixed cylinder, motor, helical gear one, helical gear two, shaft, several breaks up piece, the fixed cylinder and inlet phase
Even, the shaft is rotatably arranged in fixed cylinder, and the piece of breaing up uniformly is installed in shaft, and it is U-shaped to break up piece, described
Motor be installed on pedestal and the output shaft of motor straight up, the output shaft of motor penetrates cylinder, the helical gear one
It is coaxially installed on the output shaft of motor, in the coaxial fixed shaft of the helical gear two, helical gear one is engaged with helical gear two.
7. a kind of gas-liquid separation device on centrifugal pump according to claim 1 or 6, which is characterized in that described
Limiting mechanism includes catheter, connecting rod, cap liner, is installed with inlet tube in the fixed cylinder, fixed on the tank body
There is outlet tube, described catheter one end is connected on inlet tube, and the other end of catheter is connected on outlet tube, the company
Extension bar one end is hinged in inner tank wall, and the other end of connecting rod is installed with a floating ball, and the cap liner is installed in connecting rod
Upper and cap liner can close outlet tube.
8. a kind of gas-liquid separation device on centrifugal pump according to claim 3 or 7, which is characterized in that described
Outlet tube is located at the top of baffle three.
9. a kind of gas-liquid separation device on centrifugal pump according to claim 7, which is characterized in that the feed liquor
Pipe is closed by check valve two, and liquid stream can flow to inlet tube from outlet tube.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159703.4A CN111298482B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
| CN201810335808.3A CN108869310B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335808.3A CN108869310B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159703.4A Division CN111298482B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869310A true CN108869310A (en) | 2018-11-23 |
| CN108869310B CN108869310B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159703.4A Active CN111298482B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
| CN201810335808.3A Active CN108869310B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159703.4A Active CN111298482B (en) | 2018-04-13 | 2018-04-13 | Gas-liquid separation device for centrifugal pump |
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| CN (2) | CN111298482B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298482B (en) * | 2018-04-13 | 2021-09-03 | 东台市高科技术创业园有限公司 | Gas-liquid separation device for centrifugal pump |
| CN115853747B (en) * | 2023-02-28 | 2023-04-25 | 深圳市广昌源机电设备有限公司 | Steam-water separator of dechlorination vacuum pump unit |
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| US4370868A (en) * | 1981-01-05 | 1983-02-01 | Borg-Warner Corporation | Distributor for plate fin evaporator |
| CN1837573A (en) * | 2006-02-24 | 2006-09-27 | 四川石油管理局 | High-efficiency vacuum degasifier for gas-cutting drilling liquid |
| CN205461213U (en) * | 2016-02-23 | 2016-08-17 | 季晓春 | High -efficient gas -liquid separation sewage treatment automatic filtration device |
| CN205759891U (en) * | 2016-05-19 | 2016-12-07 | 武汉工程大学 | A kind of spiral gas-liquid separator |
| CN206051723U (en) * | 2016-08-18 | 2017-03-29 | 南安市国和机械设备有限公司 | A kind of sewage-treatment plant |
| CN206823425U (en) * | 2017-01-18 | 2018-01-02 | 陕西秦云农产品检验检测有限公司 | Novel wave type knockout drum |
| CN206905535U (en) * | 2017-05-17 | 2018-01-19 | 江苏维祥生物科技有限公司 | A kind of efficiently fused salt furnace apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204783706U (en) * | 2015-07-10 | 2015-11-18 | 浙江威龙泵业有限公司 | There is not oily vortex sheet vacuum type self -priming centrifugal pump |
| CN107761124B (en) * | 2017-10-23 | 2019-06-07 | 大连理工大学 | A kind of preparation method and application carrying silver-colored carbon aerogels |
| CN111298482B (en) * | 2018-04-13 | 2021-09-03 | 东台市高科技术创业园有限公司 | Gas-liquid separation device for centrifugal pump |
-
2018
- 2018-04-13 CN CN202010159703.4A patent/CN111298482B/en active Active
- 2018-04-13 CN CN201810335808.3A patent/CN108869310B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4370868A (en) * | 1981-01-05 | 1983-02-01 | Borg-Warner Corporation | Distributor for plate fin evaporator |
| CN1837573A (en) * | 2006-02-24 | 2006-09-27 | 四川石油管理局 | High-efficiency vacuum degasifier for gas-cutting drilling liquid |
| CN205461213U (en) * | 2016-02-23 | 2016-08-17 | 季晓春 | High -efficient gas -liquid separation sewage treatment automatic filtration device |
| CN205759891U (en) * | 2016-05-19 | 2016-12-07 | 武汉工程大学 | A kind of spiral gas-liquid separator |
| CN206051723U (en) * | 2016-08-18 | 2017-03-29 | 南安市国和机械设备有限公司 | A kind of sewage-treatment plant |
| CN206823425U (en) * | 2017-01-18 | 2018-01-02 | 陕西秦云农产品检验检测有限公司 | Novel wave type knockout drum |
| CN206905535U (en) * | 2017-05-17 | 2018-01-19 | 江苏维祥生物科技有限公司 | A kind of efficiently fused salt furnace apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108869310B (en) | 2020-06-09 |
| CN111298482A (en) | 2020-06-19 |
| CN111298482B (en) | 2021-09-03 |
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Denomination of invention: A gas-liquid separation device for centrifugal pumps Effective date of registration: 20230825 Granted publication date: 20200609 Pledgee: Jingxian sub branch of China Construction Bank Co.,Ltd. Pledgor: ANHUI CHANGYU PUMP VALVE MANUFACTURING Co.,Ltd. Registration number: Y2023980053622 |