CN201723510U - Liquid suction prevention device of turbine vacuum pump - Google Patents
Liquid suction prevention device of turbine vacuum pump Download PDFInfo
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- CN201723510U CN201723510U CN201020174468XU CN201020174468U CN201723510U CN 201723510 U CN201723510 U CN 201723510U CN 201020174468X U CN201020174468X U CN 201020174468XU CN 201020174468 U CN201020174468 U CN 201020174468U CN 201723510 U CN201723510 U CN 201723510U
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- separator
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Abstract
The utility model discloses a liquid suction prevention device of a turbine vacuum pump, belonging to the technical field of turbine vacuum pumps. The liquid suction prevention device of a turbine vacuum pump is characterized in that a gas-liquid separator comprises a cylinder body, the middle part and the top end of the cylinder body are respectively provided with an inlet flange connection pipe and an outlet flange connection pipe which are used for connecting with a vacuum pipeline and a separator outlet, the bottom of the cylinder body is matched with a drainage hole seat and a nozzle flange connection pipe connected with a negative pressure drainage pump, the lower part outside the cylinder is matched with an automatic sensing liquidometer which is in controlled connection with a vacuum pump, the cylinder body is internally matched with a spiral separator corresponding to the inlet flange connection pipe, the upside of the spiral separator is matched with an annular water stopper, the air inlet of which is matched on the side, and the air outlet of the annular water stopper is connected with the outlet flange connection pipe. The liquid suction prevention device of the turbine vacuum pump can ensure that a gas-liquid mixture is fully separated and filtered before reaching the turbine vacuum pump, air is pumped by the turbine vacuum pump, liquid is recycled, and impurities are conveniently and rapidly cleaned, thereby keeping vacuum degree and stable air amount and guaranteeing the high-efficiency operation of the turbine vacuum pump.
Description
Technical field
The utility model belongs to the turbine vacuum pump technical field, is specifically related to the anti-liquid suction device of a kind of turbine vacuum pump.
Background technique
Turbine vacuum pump is a kind of rotating vanes vacuum pump, is applied to the vacuum system of industries such as papermaking, chemical industry, metallurgy, because its aspiration is big, efficient is high, need not working solution, equipment does not have advantages such as corrosion and scaling, is the substitute products of positive displacement vacuum equipment.Turbine vacuum pump is working medium with gas; because density of liquid, coefficient of viscosity are much larger than gas; especially when the rotating speed of centrifugal impeller is above up to 20000r/min; the active force that liquid produces impeller is also just much larger than the active force of gas to impeller; when containing liquid in the dielectric gas; destroy the balance of whole rotor easily; also can cause heavy damage consequences such as impeller blade fracture, main shaft bending; need expend great amount of manpower and material resources and go to repair, and because the shutdown of equipment can have a strong impact on the production of papermaking enterprise.And in the prior art, it is insufficient that the mixture that gassy, liquid, impurity etc. are formed in the vacuum pipe of paper machine wet end, mixture separate, most of vacuum equipment that directly arrives.Therefore, the inlet of turbine vacuum pump should strictly be controlled, and enters unit to prevent liquid water.
The model utility content
The utility model aims to provide a kind of gas-liquid separation and filters the anti-liquid suction device technological scheme of the turbine vacuum pump that combines, to overcome problems of the prior art.
Described turbine vacuum pump is prevented the liquid suction device, comprise horizontally disposed turbine vacuum pump inlet connection, vacuum pipe, it is characterized in that described vacuum pump inlet adapter is positioned at the vacuum pipe top, vacuum pump inlet is taken over input end and is equipped with the vacuum pipe filter, the connection of vacuum pipe filter input end is provided with the filter inlet straight tube, the connection of vacuum pipe output terminal is provided with gas-liquid separator, the output terminal connection at gas-liquid separator top is provided with the separator outlet straight tube, the separator outlet straight tube, connect by bridge piece between the filter inlet straight tube, the vacuum pipe filter bottom is provided with drainage means, and the gas-liquid separator bottom connects to be provided with to restrain bears pump.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described gas-liquid separator comprises cylindrical shell, the cylindrical shell middle part, the top is provided for respectively and vacuum pipe, the suction flange that the separator outlet straight tube connects is taken over, outlet(discharge) flange is taken over, the nozzle flange adapter that the cylindrical shell bottom is equipped with the weep hole seat and is connected with the negative pump of gram, the cylindrical shell outer lower portion is equipped with the automatic sensing level meter with the vacuum pump control connection, take over cooperation corresponding to suction flange in the cylindrical shell and be provided with spiral separator, the top of spiral separator is equipped with annular water blocking device, annular water blocking device suction port is equipped with at side, and air outlet and outlet(discharge) flange are taken over and be connected.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described vacuum pipe filter comprises a columniform filtration cavity, filter the cavity upper/lower terminal upper cover plate, lower cover plate are set respectively, filtration cavity sustained height two outsides quadrature respectively are provided for taking over inlet connection, the discharge connection that is connected with filter inlet straight tube, vacuum pump inlet, along filtering the cavity medial axis filter screen parallel with the inlet connection end face is set between upper cover plate, the lower cover plate, is equipped with the drainage interface that is connected with drainage means on the lower cover plate of inlet connection side.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described bridge piece comprise the outlet connecting pipe that is connected with the separator outlet straight tube, with the inlet connecting tube of filter inlet straight tube, outlet connecting pipe vertically is provided with and is positioned on the same axis with the separator outlet straight tube, the inlet connecting tube is with respect to the downward-sloping setting of filter inlet straight tube, and its inclination is at least greater than 1 °.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described drainage means comprises upper and lower valve, be equipped with water storage case between the upper and lower valve, last valve input end is connected with the bottom of vacuum pipe filter, the connection of lower valve output terminal is provided with observation tube, and the observation tube tip engages is provided with the water seal bucket.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described annular water blocking device is cooperated with outer ring body by inner barrel constitutes, be equipped with the air inlet elongated slot on the side of inner barrel bottom, outer ring body is that semi-loop is equipped with in the air inlet elongated slot outside, the outer ring body upper and lower end face is connected with inner barrel respectively, constitutes the ring-type suction port between inner barrel and the outer ring body.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that the extreme lower position that is connected with discharge connection in the described filtration cavity is horizontally disposed with arc-shaped watertight shutter, and the arc limit of arc-shaped watertight shutter joins with the filtration cavity; Both sides at filter screen on the described upper cover plate are equipped with visor respectively.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that being provided with between described upper cover plate, the lower cover plate 4 guide rails of pegging graft and cooperating with filter screen, guide rail is separately positioned on the and arranged on left and right sides position of filter screen front and back ends, fixedlys connected with filtration cavity inboard.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that described upper cover plate is tightly connected with the filtration cavity by last sealing gasket, last adpting flange; Described lower cover plate is tightly connected with the filtration cavity by lower seal pad, following adpting flange.
Described turbine vacuum pump is prevented the liquid suction device, it is characterized in that air inlet elongated slot set on the described inner barrel (groove width be 90 °.
The anti-liquid suction device of above-mentioned turbine vacuum pump is novel, rational in infrastructure, the employing device can make the gas-liquid mixture in the vacuum pipe fully separate before arriving turbine vacuum pump and filter, and gas is taken away by turbine vacuum pump, the recyclable utilization of liquid, impurity can be cleared up easily, keeps degree of vacuum and tolerance stable, guarantees that turbine vacuum pump efficiently moves, satisfy paper machine technological requirement, help improving the speed of a motor vehicle of paper machine, effectively reduce the energy consumption of papermaking vacuum system, not only energy-conservation but also environmental protection.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is described vacuum pipe structure of filter schematic representation;
Fig. 3 looks up structural representation for Fig. 2;
Fig. 4 is the A-A cross section structure schematic representation of Fig. 2;
Fig. 5 is the structural representation of described arc-shaped watertight shutter;
Fig. 6 is the structural representation of described gas-liquid separator;
Fig. 7 is the plan structure schematic representation of Fig. 6;
Fig. 8 is that the B-B of annular water blocking device among Fig. 6 is to structural representation;
Among the figure: 1-water seal bucket, 2-observation tube, 3-lower valve, the last valve of 3a-, 4-water storage case, the adapter of 5-vacuum pump inlet, 6-vacuum pipe filter, 7-filter inlet straight tube, 8-bridge piece, 8a-inlet connecting tube, 8b-outlet connecting pipe, 9-gas-liquid separator, 10-separator outlet straight tube, 11-vacuum pipe, the negative pump of 12-gram, 13-drainage means.
601-drainage interface, 602-lower cover plate, 603-lower seal pad, 604-guide rail, 605-filter screen, 606-inlet adpting flange, 607-inlet connection, 608-filter adpting flange under cavity, the last sealing gasket of 609-, 610-upper cover plate, 611-visor, the last adpting flange of 612-, 613-discharge connection, 614-outlet adpting flange, 615-arc-shaped watertight shutter, the 616-;
The adapter of 901-nozzle flange, the adapter of 902-outlet(discharge) flange, 903-annular water blocking device, 903a-inner barrel, 903b-outer ring body, 903c-air inlet elongated slot, 903d-ring-type suction port, 904-cylindrical shell, 905-spiral separator, the adapter of 906-suction flange, 907-weep hole seat, 908-automatic sensing level meter, 909-water leg device, 910-leg, 911-level instrumentation nozzle.
Embodiment
Now, describe embodiment of the present utility model in detail in conjunction with Figure of description:
Turbine vacuum pump is prevented the liquid suction device, and as shown in the figure, vacuum pump inlet takes over 5, vacuum pipe 11 is horizontally disposed with respectively and vacuum pump inlet adapter 5 is positioned at vacuum pipe 11 tops.The connection of vacuum pipe 11 output terminals is provided with gas-liquid separator 9, and gas-liquid separator 9 top output terminals connections are provided with separator outlet straight tube 10.Vacuum pump inlet is taken over 5 input ends and is equipped with vacuum pipe filter 6, the connection of vacuum pipe filter 6 input ends is provided with filter inlet straight tube 7, separator outlet straight tube 10, connect by bridge piece 8 between the filter inlet straight tube 7, bridge piece 8 comprises the outlet connecting pipe 8b that is connected with separator outlet straight tube 10, inlet connecting tube 8a with filter inlet straight tube 7, outlet connecting pipe 8b vertically is provided with and is positioned on the same axis with separator outlet straight tube 10, inlet connecting tube 8a is with respect to the 7 downward-sloping settings of filter inlet straight tube, the inclination of inlet connecting tube 8a is at least greater than 1 °, outlet connecting pipe 8b, connect according to the pipeline that it is suitable that the scene of using distributes employing between the inlet connecting tube 8a.The connection of gas-liquid separator 9 bottoms is provided with the negative pump 12 of gram and is used to get rid of the liquid that gas-liquid separator 9 gathers.Vacuum pipe filter 6 bottoms are provided with drainage means 13 and are used to get rid of liquid and the impurity that vacuum pipe filter 6 gathers, drainage means 13 comprises valve 3a, lower valve 3, last valve 3a, be equipped with water storage case 4 between the lower valve 3, last valve 3a input end is connected with the drainage interface 601 of vacuum pipe filter 6, the connection of lower valve 3 output terminals is provided with observation tube 2, observation tube 2 tip engages are provided with water seal bucket 1, water seal bucket 1 is an open type, liquid level contacts with atmosphere, and guarantee that observation tube 2 is behind full of liquid, the end of inserting the water seal bucket is at the following 200mm of liquid level, and the volatilization of the water in the water seal bucket 1 causes liquid level and descends when needing to replenish, and needs to close and close valve 3a, lower valve 3; Water storage case 4, observation tube 2, water seal bucket 1 can be used for observing relevant informations such as the color, impurity, slurry of the liquid that ejects.
Gas-liquid separator 9 described in the anti-liquid suction device of above-mentioned turbine vacuum pump, suction flange adapter 906, outlet(discharge) flange that cylindrical shell 904 middle parts, top are provided for respectively being connected with vacuum pipe 11, separator outlet straight tube 10 take over 902, cylindrical shell 904 bottoms are equipped with weep hole seat 907, water leg device 909, nozzle flange and take over 901 and be used for getting rid of liquid and the impurity that the gas-liquid separation process is gathered, the weep hole seat 907 outer valves that are provided with, Open valve can be cleared up the foreign material that cylindrical shell 904 bottoms are gathered, and nozzle flange adapter 901 is connected with the negative pump 12 of gram.Corresponding suction flange is taken over 906 cooperations and is provided with spiral separator 905 in the cylindrical shell 904, and the gas-liquid of transmission enters the back from suction flange adapter 906 and carries out the gas-liquid separation first time by spiral separator 905 high speed rotating.Be equipped with in the cylindrical shell 904 of spiral separator 905 tops, annular water blocking device 903 outlet end are connected with the entrance point of outlet(discharge) flange adapter 902; This annular water blocking device 903 is cooperated with outer ring body 903b by inner barrel 903a and constitutes, be equipped with air inlet elongated slot 903c on the side of inner barrel 903a bottom, air inlet elongated slot 903c groove width is 90 °, be that the along the circumferential direction pairing central angle of air inlet elongated slot 903c is 90 °, outer ring body 903b is that semi-loop is equipped with in the air inlet elongated slot 903c outside, outer ring body 903b upper and lower end face is connected with inner barrel 903a respectively, constitute ring-type suction port 903d between inner barrel 903a and the outer ring body 903b, gas enters air inlet elongated slot 903c by the two ends of ring-type suction port 903d.Cylindrical shell 904 bottoms are equipped with one group of leg 910 and are used for installing and locating.Cylindrical shell 904 outer lower portion are equipped with the automatic sensing level meter 908 with the vacuum pump control connection, automatic sensing level meter 908 is fixing by the level instrumentation nozzle 911 that cylindrical shell 904 bottoms, side connect setting respectively, when the liquid of cylindrical shell 904 inner accumulated reach a certain height, can the chain automatically vacuum pump that stops, guarantee the normal operating conditions of follow-up equipment.The gas-liquid mixture of coming from vacuum pipe 11 enters from suction flange adapter 906, behind spiral separator 905, part water directly arrives cylindrical shell 904 bottoms by action of gravity, a part is separated the back by spiral separator 905 and is arrived cylindrical shell 904 bottoms, this moment, most of water separated, but because degree of vacuum, the instability of process parameters such as tolerance, also often there is a part of water in the gas after spiral separator 905 separates, spiral separator 905 exists certain height poor with annular water blocking device 903, in action of gravity, small part water can fall on the spiral separator and separate in the way, the remaining part air-water mixture arrives annular water blocking device 903 and carries out air-water separation once more, and separates more thoroughly.All arrive the water of cylindrical shell bottom and discharge by taking over 901 filtrate pumps that link to each other with nozzle flange, or are discharged by water leg device 909.
The filtration cavity 608 of the vacuum pipe filter 6 described in the anti-liquid suction device of above-mentioned turbine vacuum pump adopts cylindrical structural, filter cavity 608 upper/lower terminals upper cover plate 610, lower cover plate 602 are set respectively, upper cover plate 610 is tightly connected with filtration cavity 608 by last sealing gasket 609, last adpting flange 612; Described lower cover plate 602 is tightly connected with filtration cavity 608 by lower seal pad 603, following adpting flange 616; Filter cavity 608 sustained heights two outsides respectively quadrature be provided for and filter inlet straight tube 7, vacuum pump inlet are taken over 5 inlet connections that are connected 607, discharge connection 613, the outer end is equipped with inlet adpting flange 606 respectively, outlet adpting flange 614 is used for taking over 5 with filter inlet straight tube 7, vacuum pump inlet and is connected, inlet connection 607, discharge connection 613 operated by rotary motion are being filtered cavity 608 neutral positions, and cavity 608 welding are fixing with filtering; Upper cover plate 610, along filtering cavity 608 medial axis the filter screen 605 parallel with inlet connection 607 end faces is set between the lower cover plate 602, before the filter screen 605, back side edge contacts with filtration cavity 608 inwalls and cooperates, before the filter screen 605, the left side of rear side, right both sides are provided with the guide rail 604 that cooperates with its grafting respectively, article four, guide rail constitutes the tracks of filter screen 605, be used for fixing on the one hand, support filter screen 605, make filter screen 605 be unlikely to be inhaled curved by vacuum pump, be convenient to cleaning simultaneously or change filter screen 605, make filter screen 605 pull out easily or pack into along guide rail 604, guide rail 604 all can be fixed by welding in and filter cavity 608 inboards; Filter the extreme lower position that is connected with discharge connection 613 in the cavity 608 and be horizontally disposed with arc-shaped watertight shutter 615, the arc limit of arc-shaped watertight shutter 615 joins with filtration cavity 608, prevent that the condensation vapor that filters cavity 608 inner bottom parts from becoming the discharge connection 613 of climbing to waterborne, influences gaseous mass; Can be equipped with visor 611 respectively on the upper cover plate 610 of filter screen 605 both sides, the ponding situation that is used to observe the impurity situation on the filter screen and filters cavity 608 inner bottom parts is so that in time grasp shutdown cleaning on opportunity or change filter screen, discharge ponding; Be equipped with drainage interface 601 on the lower cover plate 602 of inlet connection 607 sides and be connected, be used to get rid of liquid that vacuum pipe filter 6 gathers and discharge with impurity and separate deposited liquid and impurity with drainage means 13.May also there be a spot of liquid, impurity outside the gas after gas-liquid separator 9 separates, liquid and impurity arrive inlet connections 607 along outlet(discharge) flange adapter 902, separator outlet straight tube 10, bridge piece 8, filter inlet straight tube 7 and enter filtration cavity 608, liquid, partial impurities fall in action of gravity and filter cavity 608 bottoms, and the drainage means 13 through being connected with drainage interface 601 is discharged; Gas enters vacuum pump by filter screen 605 after discharge connection 613 arrives vacuum pump inlet adapter 5, residual impurity is trapped within on the filter screen 605 during by filter screen 605 at gas, the mesh of filter screen 605 stops the vacuum pump main frame and clears up or change when being obstructed to a certain degree, for improving the validity of filtering, the mesh area of filter screen 605 in design should be greater than the sectional area of the vacuum pipe that is connected.
In the foregoing description, with the highest liquid level of gas-liquid separator and the turbine vacuum pump intake discrepancy in elevation, be that the highest liquid level of cylindrical shell 904 inner accumulated liquid of gas-liquid separator 9 and the height difference that vacuum pump inlet is taken between 5 medial axis are assumed to be H2, the numerical value of H2 is converted to more than the big 0.5m of numerical value of water column than the degree of vacuum that vacuum pump inlet is taken over 5 places at least; Height difference between the bottom of the filtration cavity 608 of the liquid level of water seal bucket 1 and vacuum pipe filter 6 is assumed to be H1.Under the normal condition, during the turbine vacuum pump operation, the gas-liquid mixture in the vacuum pipe 11 separates through gas-liquid separator 9, and liquid, partial impurities are condensed and sunk down into gas-liquid separator 9 bottoms, are discharged by negative pump 12 of gram or water leg device 909, and be recycling through reclaiming.Before taking over 5, vacuum pump inlet installs vacuum pipe filter 6 additional; it mainly acts on is to prevent from not remove in the pipeline impurity such as clean scale, welding slag to enter turbine engine when first the driving; damage even destruction unit; and the liquid water that swashes in the normal operation period collection conduit; the protection main frame; prevent that gas-liquid separator 9 gas-liquid separations inadequately fully or during the variation of technology operating mode, part liquid grain is climbed to the turbine vacuum pump intake along pipeline under the pumping action of turbine vacuum pump.Liquid water along pipeline swashes when arriving vacuum pipe filter 6, is sink to filter bottom through separation.When the degree of vacuum of taking over 5 places greater than vacuum pump inlet as H1-0.5m is converted to the numerical value of water column, last valve 3a, water storage case 4, lower valve 3 standard-sized sheets, the last valve 3a, water storage case 4, the lower valve 3 that are sink to the liquid process standard-sized sheet that filters cavity 608 bottoms this moment drain into water seal bucket 1 automatically; When limitation owing to the mounting point, and can't satisfy degree of vacuum that H1-0.5 takes over 5 places greater than vacuum pump inlet and be converted to the numerical value of water column the time, can also successfully discharge the liquid water that is sink in the filter in order to ensure, last valve 3a, lower valve 3 are selected solenoid valve for use, the level meter that cooperates water storage case 4, switch the liquid of getting rid of water storage case 4 mutually, this mode can be cancelled water seal bucket 1.
Claims (10)
1. turbine vacuum pump is prevented the liquid suction device, comprise horizontally disposed turbine vacuum pump inlet connection (5), vacuum pipe (11), it is characterized in that described vacuum pump inlet adapter (5) is positioned at vacuum pipe (11) top, vacuum pump inlet is taken over (5) input end and is equipped with vacuum pipe filter (6), the connection of vacuum pipe filter (6) input end is provided with filter inlet straight tube (7), the connection of vacuum pipe (11) output terminal is provided with gas-liquid separator (9), the output terminal connection at gas-liquid separator (9) top is provided with separator outlet straight tube (10), separator outlet straight tube (10), connect by bridge piece (8) between the filter inlet straight tube (7), vacuum pipe filter (6) bottom is provided with drainage means (13), and gas-liquid separator (9) bottom connects to be provided with to restrain bears pump (12).
2. turbine vacuum pump as claimed in claim 1 is prevented the liquid suction device, it is characterized in that described gas-liquid separator (9) comprises cylindrical shell (904), cylindrical shell (904) middle part, the top is provided for respectively and vacuum pipe (11), the suction flange that separator outlet straight tube (10) connects is taken over (906), outlet(discharge) flange is taken over (902), the nozzle flange adapter (901) that cylindrical shell (904) bottom is equipped with weep hole seat (907) and is connected with the negative pump (12) of gram, cylindrical shell (904) outer lower portion is equipped with the automatic sensing level meter (908) with the vacuum pump control connection, take over (906) cooperation corresponding to suction flange in the cylindrical shell (904) and be provided with spiral separator (905), the top of spiral separator (905) is equipped with annular water blocking device (903), annular water blocking device (903) suction port is equipped with at side, and air outlet and outlet(discharge) flange are taken over (902) and be connected.
3. turbine vacuum pump as claimed in claim 1 is prevented the liquid suction device, it is characterized in that described vacuum pipe filter (6) comprises a columniform filtration cavity (608), filter on the cavity (608), following two ends are provided with upper cover plate (610) respectively, lower cover plate (602), filtration cavity (608) sustained height two outsides quadrature respectively are provided for and filter inlet straight tube (7), vacuum pump inlet is taken over the inlet connection (607) that (5) connect, discharge connection (613), upper cover plate (610), along filtering cavity (608) medial axis the filter screen (605) parallel with inlet connection (607) end face is set between the lower cover plate (602), is equipped with the drainage interface (601) that is connected with drainage means (13) on the lower cover plate (602) of inlet connection (607) side.
4. turbine vacuum pump as claimed in claim 1 is prevented the liquid suction device, it is characterized in that described bridge piece (8) comprise the outlet connecting pipe (8b) that is connected with separator outlet straight tube (10), with the inlet connecting tube (8a) of filter inlet straight tube (7), outlet connecting pipe (8b) vertically is provided with and is positioned on the same axis with separator outlet straight tube (10), inlet connecting tube (8a) is with respect to the downward-sloping setting of filter inlet straight tube (7), and its inclination is at least greater than 1 °.
5. turbine vacuum pump as claimed in claim 1 is prevented the liquid suction device, it is characterized in that described drainage means (13) comprises upper and lower valve (3a, 3), be equipped with water storage case (4) between the upper and lower valve (3a, 3), last valve (3a) input end is connected with the bottom of vacuum pipe filter (6), the connection of lower valve (3) output terminal is provided with observation tube (2), and observation tube (2) tip engages is provided with water seal bucket (1).
6. turbine vacuum pump as claimed in claim 2 is prevented the liquid suction device, it is characterized in that described annular water blocking device (903) cooperates formation by inner barrel (903a) with outer ring body (903b), be equipped with air inlet elongated slot (903c) on the side of inner barrel (903a) bottom, outer ring body (903b) is equipped with in air inlet elongated slot (903c) outside for semi-loop, outer ring body (903b) upper and lower end face is connected with inner barrel (903a) respectively, constitutes ring-type suction port (903d) between inner barrel (903a) and the outer ring body (903b).
7. turbine vacuum pump as claimed in claim 3 is prevented the liquid suction device, it is characterized in that the extreme lower position that is connected with discharge connection (613) in the described filtration cavity (608) is horizontally disposed with arc-shaped watertight shutter (615), the arc limit of arc-shaped watertight shutter (615) joins with filtration cavity (608); Described upper cover plate (610) is gone up and is equipped with visor (611) respectively in the both sides of filter screen (605).
8. turbine vacuum pump as claimed in claim 3 is prevented the liquid suction device, it is characterized in that being provided with between described upper cover plate (610), the lower cover plate (602) 4 guide rails (604) of pegging graft and cooperating with filter screen (605), guide rail (604) is separately positioned on the and arranged on left and right sides position of filter screen (605) front and back ends, fixedlys connected with filtration cavity (608) is inboard.
9. turbine vacuum pump as claimed in claim 3 is prevented the liquid suction device, it is characterized in that described upper cover plate (610) is tightly connected with filtration cavity (608) by last sealing gasket (609), last adpting flange (612); Described lower cover plate (602) is tightly connected with filtration cavity (608) by lower seal pad (603), following adpting flange (616).
10. turbine vacuum pump as claimed in claim 6 is prevented the liquid suction device, it is characterized in that it is 90 ° that described inner barrel (903a) is gone up the groove width of set air inlet elongated slot (903c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020174468XU CN201723510U (en) | 2010-04-28 | 2010-04-28 | Liquid suction prevention device of turbine vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020174468XU CN201723510U (en) | 2010-04-28 | 2010-04-28 | Liquid suction prevention device of turbine vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723510U true CN201723510U (en) | 2011-01-26 |
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ID=43491832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020174468XU Expired - Lifetime CN201723510U (en) | 2010-04-28 | 2010-04-28 | Liquid suction prevention device of turbine vacuum pump |
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| CN (1) | CN201723510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839252A (en) * | 2010-04-28 | 2010-09-22 | 杭州振兴工业泵制造有限公司 | Method and apparatus for preventing turbine vacuum pump from sucking liquid |
| CN108579218A (en) * | 2018-01-15 | 2018-09-28 | 西南石油大学 | A kind of novel negative pressure gas-liquid separator |
-
2010
- 2010-04-28 CN CN201020174468XU patent/CN201723510U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839252A (en) * | 2010-04-28 | 2010-09-22 | 杭州振兴工业泵制造有限公司 | Method and apparatus for preventing turbine vacuum pump from sucking liquid |
| CN108579218A (en) * | 2018-01-15 | 2018-09-28 | 西南石油大学 | A kind of novel negative pressure gas-liquid separator |
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| CX01 | Expiry of patent term |