CN201206551Y - Single-stage cantalever radial air intake and exhaust double-action liquid ring pump - Google Patents
Single-stage cantalever radial air intake and exhaust double-action liquid ring pump Download PDFInfo
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- CN201206551Y CN201206551Y CNU2008200179914U CN200820017991U CN201206551Y CN 201206551 Y CN201206551 Y CN 201206551Y CN U2008200179914 U CNU2008200179914 U CN U2008200179914U CN 200820017991 U CN200820017991 U CN 200820017991U CN 201206551 Y CN201206551 Y CN 201206551Y
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- gas distributor
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Abstract
The utility model provides a single-stage cantilever radial gas inlet/outlet double-action liquid-ring pump which belongs to a pump applied in the chemical industry. A casing is disposed outside an impeller. A gas distributor is disposed in the impeller and provided with an axial liquid inlet hole and the other liquid inlet hole thereon; and one end of each of the liquid inlet holes is respectively connected with a liquid inlet hole and the other liquid inlet hole, and the other end thereof is respectively opposite to the part of the casing inner surface closest to the impeller outer surface. A pressurized liquid ring medium ejects from the liquid outlet holes, the junction between two crescent space ends in the sealed liquid-ring pump is sealed, and the compressed gas is prevented from entering the suction region of next crescent space along the gap between the impeller inner surface and the gas distributor outer surface and forced into a gas discharge window, and the entrance of the liquid ring medium is free from the interference from the vane on the rotating impellor; therefore, the pump is ensured to have ideal volume efficiency and good pressurization effect when reaching a higher outlet pressure.
Description
Technical field
The pump that the utility model provides a kind of chemical industry to use, especially a kind of water-ring pump.
Background technique
In chemical industry, to use water-ring pump during gases such as force feed chlorine, hydrogen cloride.A kind of single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust is arranged in the existing water-ring pump, on this water-ring pump, the impeller that the band blade is arranged, there is housing the impeller outside, gas distributor is arranged in the impeller, the connection cover plate of gas distributor outside is fixed between housing and the pump cover, have on the gas distributor air inlet window, another air inlet window respectively with pump cover on the suction port intracavity inter-connection, also have exhaust window and another exhaust window respectively through the exhaust port at gas distributor middle part and the relief opening intracavity inter-connection on the pump cover.The sectional shape ovalize of housing, impeller profile are circular, and the gas distributor profile is rounded or conical.During work, a certain amount of pendular ring medium in the pump is close to all the time under the effect of the rotary centrifugal force of impeller and forms pendular ring on the shell inner surface, the thickness of this pendular ring supposition usually is uniform thickness, therefore, the internal surface of pendular ring is also ovalize substantially, has formed two meniscate spaces between the internal surface of pendular ring and the gas distributor outer surface.Treat that force feed gas enters gas distributor from the suction port inner chamber on the pump cover, enter in this crescent-shaped space from the air inlet window again, rotation with impeller moves forward in the less space, crescent-shaped space end again, gas is squeezed compression and obtains pressurization, outside the exhaust port at the exhaust window of the gas after the pressurization from gas distributor, gas distributor middle part, the relief opening inner chamber excavationg pump on the pump cover.In one week of wheel rotation, finish twice air inlet (promptly air-breathing) and twice exhaust process.Intersection two crescent-shaped space ends owing between impeller inner surface and the gas distributor outer surface certain clearance is arranged, has portion gas enters next crescent-shaped space along this gap air-breathing district.When gas pressure near or when reaching 0.4Mpa, most of gas can enter the air-breathing district of next crescent-shaped space along above-mentioned gap, at this moment therefore the water-ring pump flow that just can not be of practical significance can not obtain higher pressurization effect, volumetric efficiency is low.For addressing this problem, someone is provided with liquid entering hole on the housing at the hithermost position of shell inner surface and impeller outer surface, in the process of pump work through this mouthful to the direction of the intersection of two crescent-shaped space ends filling pendular ring medium, purpose is that the liquid that the pendular ring at this position of flowing through is annotated presses on the outer surface of gas distributor, enters the air-breathing district of next crescent-shaped space along above-mentioned gap with barrier gas.Because the gap between impeller inner surface and the gas distributor outer surface always exists, pendular ring has outside centrifugal force in addition, also can be subjected to the interference of the blade on the impeller that high speed rotating simultaneously, the effect that the measure of therefore above-mentioned ecto-entad filling pendular ring medium obtains is limited.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust, to improve its pressurization effect and volumetric efficiency.
The utility model is to realize like this, single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust, it has the impeller of band blade, there is housing the impeller outside, gas distributor is arranged in the impeller, the connection cover plate of gas distributor outside is fixed between housing and the pump cover, the air inlet window is arranged on gas distributor, another air inlet window respectively with pump cover on the suction port intracavity inter-connection, also has exhaust window, another exhaust window is respectively through the exhaust port at gas distributor middle part and the relief opening intracavity inter-connection on the pump cover, axial inlet opening and another inlet opening are arranged on described gas distributor, liquid outlet opening on the gas distributor, another liquid outlet opening one end respectively with inlet opening, another inlet opening is connected, the other end is respectively towards the hithermost position of shell inner surface and impeller outer surface, inlet opening, another inlet opening respectively with pump cover on liquid entering hole, another liquid entering hole intracavity inter-connection.
Adopt the single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust of said structure, has the liquid entering hole inner chamber that the pendular ring medium of pressure can be on pump cover, inlet opening on the gas distributor, spray from liquid outlet opening, the intersection of two crescent-shaped space ends in the sealing water-ring pump, stop that compressed gas enters the air-breathing district of next crescent-shaped space along the gap between impeller inner surface and the gas distributor outer surface, force it to enter exhaust window, and the interference that enters the blade on the impeller that can not rotated of pendular ring medium, thereby guaranteed that this pump is when reaching higher outlet pressure, still have desirable volumetric efficiency, it is effective to pressurize.
Description of drawings
Fig. 1 is a structural principle schematic representation of the present utility model.
Fig. 2 is (B) sectional drawing of A-O-B ' of Fig. 1 or Fig. 3.
Fig. 3 is that the K of Fig. 2 is to partial view.
Fig. 4 is the right elevation of the gas distributor structure in the utility model.
Fig. 5 is the main pseudosection of the gas distributor structure in the utility model.
Fig. 6 is that the A of Fig. 5 is to partial view.
Fig. 7 has represented a kind of structural type of liquid outlet opening.
Fig. 8 has represented the another kind of structural type of liquid outlet opening.
Fig. 9 is the structural principle schematic representation of existing single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing further specifies concrete structure of the present utility model and working principle.
As shown in drawings, the single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust of the utility model, it has the impeller 1 of band blade 1-2, there is housing 2 the impeller outside, gas distributor 3 is arranged in the impeller, the connection cover plate 3-10 of gas distributor outside is fixed between housing and the pump cover 4, air inlet window 3-4 is arranged on gas distributor, another air inlet window 3-9 respectively with pump cover 4 on suction port 4-1 intracavity inter-connection, also has exhaust window 3-3, another exhaust window 3-6 is respectively through the exhaust port 3-5 at gas distributor middle part and the relief opening 4-4 intracavity inter-connection on the pump cover, axial inlet opening 3-1 and another inlet opening 3-7 are arranged on described gas distributor 3, liquid outlet opening 3-2 on the gas distributor, another liquid outlet opening 3-8 one end respectively with inlet opening, another inlet opening is connected, the other end is respectively towards the hithermost position of shell inner surface and impeller outer surface, inlet opening 3-1, another inlet opening 3-7 respectively with pump cover on liquid entering hole 4-2, another liquid entering hole 4-3 intracavity inter-connection.
Keyway 1-3 is arranged on the impeller, and impeller connects by key and main shaft links together.The motor of this pump outside rotates through the main shaft impeller.
A1 among Fig. 1 is that the internal surface of pendular ring bottom is the lower limb of a crescent-shaped space, and a2 is that the internal surface on pendular ring top is the lower limb of another crescent-shaped space.L among Fig. 1, Fig. 9 has represented the gap between impeller inner surface and the gas distributor outer surface, and this gap is generally 0.15 millimeter.
Except the structure and working principle of pendular ring medium filling part, the structure of other parts of the present utility model and working principle are identical with existing single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust, no longer describe in detail.Arrow among each figure has been represented the flow direction of gas and liquid respectively.
During use, the relief opening of the water-ring pump of the utility model is connected with a gas-liquid separator, pendular ring medium in the gas after the pressurization that gas-liquid separator is discharged relief opening is separated, these pendular ring media are through liquid entering hole 4-2 and another liquid entering hole 4-3 on the pump cover delivered in dispenser pump pressurization back by pipeline in, has the liquid entering hole inner chamber that the pendular ring medium of pressure can be on pump cover, inlet opening on the gas distributor, spray from liquid outlet opening, the intersection of two crescent-shaped space ends in the sealing water-ring pump reaches the purpose that stops that compressed gas enters the air-breathing district of next crescent-shaped space along the gap between impeller inner surface and the gas distributor outer surface.
As shown in drawings, described liquid outlet opening 3-2, another liquid outlet opening 3-8 can be slotted holes, also can be the circular holes more than 1 or 1, can also be the combinations of slotted hole and circular hole.The structural type of the liquid outlet opening that Fig. 6 represents is the circular hole more than 1 or 1; The structural type of the liquid outlet opening that Fig. 7 represents is a slotted hole; The structural type of the liquid outlet opening that Fig. 8 represents is the combination of slotted hole and circular hole.The above structural type of liquid outlet opening all can reach good effect.
As shown in Figure 9, on existing single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust, the impeller 1 that band blade 1-2 is arranged, there is housing 2 the impeller outside, gas distributor 3 is arranged in the impeller, air inlet window 3-4 and another air inlet window 3-9 are arranged on gas distributor, also have exhaust window 3-3 and another exhaust window 3-6, the housing at the hithermost position of shell inner surface and impeller outer surface is provided with liquid entering hole 2-1 and another liquid entering hole 2-2.When existing single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust uses, its relief opening also is connected with a gas-liquid separator, pendular ring medium in the gas after the pressurization that gas-liquid separator is discharged relief opening is separated, and sends in the housing through liquid entering hole 2-1 and another liquid entering hole 2-2 again.
Connecting cover plate 3-10 can make one with gas distributor, also can adopt both are sleeved on together structure.
Because the intersection of interior two the crescent-shaped space ends of water-ring pump is parallel in hithermost position, shell inner surface and impeller outer surface and the using process of working, therefore, liquid outlet opening 3-2, another liquid outlet opening 3-8 the other end be respectively towards hithermost position, shell inner surface and impeller outer surface, is exactly the intersection of two crescent-shaped space ends in the water-ring pump respectively.
Claims (2)
1, single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust, it has the impeller (1) of band blade (1-2), there is housing (2) the impeller outside, gas distributor (3) is arranged in the impeller, the connection cover plate (3-10) of gas distributor outside is fixed between housing and the pump cover (4), air inlet window (3-4) is arranged on gas distributor, another air inlet window (3-9) respectively with pump cover (4) on suction port (4-1) intracavity inter-connection, also has exhaust window (3-3), another exhaust window (3-6) is respectively through the exhaust port (3-5) at gas distributor middle part and relief opening (4-4) intracavity inter-connection on the pump cover, it is characterized in that, axial inlet opening (3-1) and another inlet opening (3-7) are arranged on described gas distributor (3), liquid outlet opening on the gas distributor (3-2), another liquid outlet opening (3-8) end respectively with inlet opening, another inlet opening is connected, the other end is respectively towards the hithermost position of shell inner surface and impeller outer surface, inlet opening (3-1), another inlet opening (3-7) respectively with pump cover on liquid entering hole (4-2), another liquid entering hole (4-3) intracavity inter-connection.
2, single-step cantilever liquid ring pump with dual-function of radial air inlet and exhaust as claimed in claim 1, it is characterized in that, described liquid outlet opening (3-2), another liquid outlet opening (3-8) can be slotted holes, also can be the circular holes more than 1 or 1, can also be the combinations of slotted hole and circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200179914U CN201206551Y (en) | 2008-02-29 | 2008-02-29 | Single-stage cantalever radial air intake and exhaust double-action liquid ring pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200179914U CN201206551Y (en) | 2008-02-29 | 2008-02-29 | Single-stage cantalever radial air intake and exhaust double-action liquid ring pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206551Y true CN201206551Y (en) | 2009-03-11 |
Family
ID=40465614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200179914U Expired - Fee Related CN201206551Y (en) | 2008-02-29 | 2008-02-29 | Single-stage cantalever radial air intake and exhaust double-action liquid ring pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206551Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179242A (en) * | 2015-08-21 | 2015-12-23 | 武汉艾德沃泵阀有限公司 | Double-stage and double-acting liquid ring pump |
-
2008
- 2008-02-29 CN CNU2008200179914U patent/CN201206551Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179242A (en) * | 2015-08-21 | 2015-12-23 | 武汉艾德沃泵阀有限公司 | Double-stage and double-acting liquid ring pump |
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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: 20090311 Termination date: 20100229 |