CN201635971U - Reciprocating type hydraulic membrane pump - Google Patents
Reciprocating type hydraulic membrane pump Download PDFInfo
- Publication number
- CN201635971U CN201635971U CN2009203515822U CN200920351582U CN201635971U CN 201635971 U CN201635971 U CN 201635971U CN 2009203515822 U CN2009203515822 U CN 2009203515822U CN 200920351582 U CN200920351582 U CN 200920351582U CN 201635971 U CN201635971 U CN 201635971U
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- guide
- barrier film
- pump housing
- groove
- piston
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Abstract
The utility model discloses a reciprocating type hydraulic membrane pump comprising a piston, wherein the piston can be installed in a piston cylinder in an axial reciprocating sliding way; the piston cylinder is connected with a pump body which is internally provided with a front guide seat and a rear guide seat; the front and the rear guide seats are internally provided with guide sleeves which can slide axially; a return spring is arranged between the guide sleeve and the guide seat; the guide sleeve is provided with a groove; the front and the rear guide seats are penetrated with guide rods; the left end of the guide rod is provided with a guide rod sleeve, and the right end of the guide rod is provided with a spacing ring; the spacing ring is fixed through a limiting plate at the right end of the guide rod; two ends of the limiting plate are connected with membranes; the other ends of the membranes are connected onto the pump body; the lower part of the pump body is provided with a compensating valve which is communicated with the groove of the rear guide seat; and the groove of the front guide seat is communicated with an oil drain line which is communicated with an oil tank of the compensating valve. The membrane pump has advantages of leading the membrane pump to operate stably, controlling the maximum deflection of the membrane, and prolonging the service life of the membrane.
Description
Technical field
The utility model relates to a kind of reciprocating hydraulic diaphragm pump.
Background technique
Hydraulic diaphragm pump is had many uses, and can be used for carrying a variety of fluids of different nature, as high temperature, high pressure, high concentration, high density, large particle, easily precipitate, tempering property is strong, corrosivity is strong medium.The industrial industries such as petroleum production, petrochemical industry, Coal Chemical Industry, nonferrous metallurgy, electric power that are used for are carried chemical medium, mud, ore pulp, water coal slurry, slag slurry, sewage etc.Its outstanding feature is by barrier film fed sheet of a media and working medium to be separated, and can realize zero leakage in theory.
In the conventional reciprocating formula hydraulic diaphragm pump, adopt dull and stereotyped barrier film, its diaphragm cavity structure as shown in Figure 5 more.Plunger (piston) 2 ' to-and-fro motion, through the hydraulic oil transmission, change into barrier film 8 ' cycle change, barrier film 8 ' amount of deformation be subjected to plunger (piston) 2 ' swept volume influence, and the maximum value of distortion be subjected to preceding barrier film confinement plate 9 ', metacneme confinement plate 7 ' curved surface limits.When plunger (piston) 2 ' do was inhaled Cheng Yundong, its swept volume strengthened gradually, and pressure reduces gradually, barrier film 8 ' deflection deformation backward, and then medium is inhaled into.When plunger (piston) 2 ' when doing the scheduling campaign, plunger (piston) 2 ' swept volume reduces gradually, compress hydraulic oil, through the hydraulic oil transmission, make barrier film 8 ' deflection deformation forward, this moment, medium was discharged from.Barrier film 8 ' be in the regime of elastic deformation of regulation, to work.
But in conventional reciprocating formula hydraulic diaphragm pump, recuperation valve 6 ' open automatically when vacuum up acquires a certain degree in hydraulic pressure cavity repairing, yet, cause the interior vacuum up factor of hydraulic pressure cavity to have a lot, for example the inlet valve mistake is closed or is stuck, suction head is too big, dielectric viscosity is big, inlet ductwork length causes the import on-way resistance too big, cause in the hydraulic pressure cavity oil mass not enough or the like owing to add in the not enough or pump group running of oil mass hydraulic fluid leak in the hydraulic pressure cavity, so recuperation valve 6 ' can't judge in the hydraulic pressure cavity whether rise, cause the mistake repairing easily because of oil mass causes degree of vacuum inadequately.And traditional draining valve 4 ' (safety valve) preestablishes cracking pressure (being higher than outlet pressure), and when having only above this pressure, draining valve 4 ' (safety valve) can the unlatching oil extraction.Because hydraulic pressure cavity pressure is identical with pump discharge pressure, if mistake repairing or adding hydraulic oil are excessive, draining valve 4 ' often can not in time discharge too much oil mass, barrier film 8 ' distortion exceeds deformation band when discharging stroke, make barrier film 8 ' fatigue impaired, do not reach expected life, even, cause serious consequences such as pump group outage, dielectric leakage barrier film 8 ' burst, tear inefficacy.
Simultaneously, in pump group running, there is the link of more hydraulic fluid leak to exist: as plunger (piston) 2 ' when moving reciprocatingly, to seal tightly inadequately, cause hydraulic fluid leak; Plunger (piston) 2 ' frictional heat when moving reciprocatingly, hydraulic fluid temperature raise, and the air accumulation in hydraulic oil causes hydraulic fluid leak or the like when forming bubble by outlet valve 5 ' discharges, causes the interior oil mass of hydraulic pressure cavity not enough.Because recuperation valve 6 ' open and need in hydraulic pressure cavity, form certain degree of vacuum, if because of leakage causes the hydraulic pressure oil mass not enough, perhaps the hydraulic pressure oil mass is not enough in adition process, and barrier film 8 ' distortion often will exceed deformation band when sucking, and can cause same serious consequence equally.
Summary of the invention
The utility model to solve conventional reciprocating formula hydraulic diaphragm pump exist operation not steadily, barrier film exceeds distortion amount of deflection, barrier film short problem in working life, proposed a kind ofly to make diaphragm pump operate steadily, control barrier film maximum distortion amount of deflection, prolong the barrier film reciprocating hydraulic diaphragm pump in working life.
The technical solution of the utility model:
Reciprocating hydraulic diaphragm pump, comprise piston, what described piston can axially reciprocatingly slide is installed in the piston cylinder, it is characterized in that: described piston cylinder is connected with the pump housing, before being provided with in the described pump housing, back guide holder, before described, being equipped with in the back guide holder can axially movable guide sleeve, be provided with Returnning spring between described guide sleeve and the guide holder, described guide sleeve is provided with groove, before described, be equipped with a guide rod in the back guide sleeve, described guide rod left end is provided with leader casing, its right-hand member is provided with a limited ring, described limited ring is fixed by the confinement plate of guide rod right-hand member, described confinement plate two ends are connected with barrier film, the other end of described barrier film is connected on the pump housing, described barrier film, the front end of confinement plate is the airtight cavity volume of dress hydraulic oil in one, its rear end is a fed sheet of a media cavity volume, the bottom of the described pump housing is provided with a recuperation valve, described recuperation valve is communicated with back guide holder groove by the first cylindrical groove on the aperture connection pump housing, the guide holder groove is communicated with drain mast by the second cylindrical groove on the pump housing before described, and described drain mast is communicated with the recuperation valve fuel tank.
Further, described piston cylinder is connected with the pump housing by flange.
Further, described barrier film is fixedlyed connected with confinement plate by the gland of confinement plate right-hand member.
Working principle of the present utility model: calculated the barrier film regime of elastic deformation in advance, by guide rod be fixed on the location status that leader casing on the guide rod is controlled forward and backward guide sleeve, guaranteed that the diaphragm deflection scope is within regime of elastic deformation.When the hydraulic pressure cavity oil mass is too much, along with piston moves right, through the hydraulic oil transmission, confinement plate, guide rod and leader casing are followed barrier film and are moved right, (calculate good diaphragm deflection scope in advance) when arriving certain position, drives and leadingly compress spring to cover and move right, preceding guide sleeve groove is communicated with preceding guide holder groove, under the effect of outlet pressure, hydraulic oil is arranged to the recuperation valve fuel tank by drain mast by the second cylindrical groove on preceding guide holder groove, the pump housing.When hydraulic-oil quantity is not enough; along with piston is moved to the left, through the hydraulic oil transmission, confinement plate, guide rod and limited ring are followed barrier film and are moved to the left; (calculate good diaphragm deflection scope in advance) when arriving certain position; piston continues to be moved to the left, and guide rod promotes back guide sleeve pressure spring and is moved to the left, and back guide sleeve groove is communicated with back guide holder groove; limited ring contacts with the back guide holder; form sealing surface, avoid barrier film to continue distortion, effectively protect barrier film.Along with piston continues to left movement, vacuum up in the hydraulic pressure cavity, recuperation valve is opened, and replenishes hydraulic oil in hydraulic pressure cavity.
The beneficial effects of the utility model: when the guide sleeve groove was communicated with preceding guide holder groove before and if only if, hydraulic oil just began to arrange to the recuperation valve fuel tank by drain mast, prevents to misprint oil, avoided barrier film to continue distortion, effectively protected barrier film.Equally, and if only if, and limited ring contacts with the back guide holder, forms sealing surface, and when back guide sleeve groove was communicated with back guide holder groove, recuperation valve just can be opened, and hydraulic pressure cavity is carried out repairing, has got rid of the possibility of mistake repairing.Control barrier film maximum distortion amount of deflection well, prolong barrier film working life, make the diaphragm pump operation more steady.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the enlarged view at guide sleeve place before the utility model.
Fig. 3 is the enlarged view at guide sleeve place behind the utility model.
Fig. 4 is the enlarged view at the utility model recuperation valve place.
Fig. 5 is the structural representation of conventional reciprocating formula hydraulic diaphragm pump.
Embodiment
With reference to Fig. 1-4, reciprocating hydraulic diaphragm pump, comprise piston 2, what described piston 2 can axially reciprocatingly slide is installed in the piston cylinder 1, described piston cylinder 1 is connected with the pump housing 13, guide holder 10 before being provided with in the described pump housing 13, back guide holder 17, guide holder 10 before described, being equipped with in the back guide holder 17 can axially movable guide sleeve 7,15, described guide sleeve 7,15 with guide holder 10, be provided with Returnning spring 8 between 17,16, described guide sleeve 7, be respectively equipped with groove 25 on 15,26, guide sleeve 7 before described, be equipped with a guide rod 6 in the back guide sleeve 15, described guide rod 6 left ends are provided with leader casing 5, its right-hand member is provided with a limited ring 19, described limited ring 19 is fixing by the confinement plate 21 of guide rod 6 right-hand members, described confinement plate 21 two ends are connected with barrier film 22, the other end of described barrier film 22 is connected on the pump housing 13, described barrier film 22, the front end of confinement plate 21 is airtight cavity volumes of dress hydraulic oil in one, its rear end is a fed sheet of a media cavity volume, the bottom of the described pump housing 13 is provided with a recuperation valve 18, described recuperation valve 18 is communicated with back guide holder groove 14 by the first cylindrical groove 24 on the aperture connection pump housing, guide holder groove 4 is communicated with drain mast 11 by the second cylindrical groove 9 on the pump housing before described, and described drain mast 11 is communicated with recuperation valve fuel tank 20.
Described piston cylinder 1 is connected with the pump housing 13 by flange 3.
Described barrier film 22 is fixedlyed connected with confinement plate 21 by the gland 23 of confinement plate 21 right-hand members.
Working procedure of the present utility model: calculated barrier film 22 regimes of elastic deformation in advance, the location status of guide sleeve 7, back guide sleeve 15 guarantees that barrier film 22 deformation bands are within regime of elastic deformation by guide rod 6 and before being fixed on leader casing 5 controls on the guide rod 6.When the hydraulic pressure cavity oil mass is too much, along with piston 2 moves right, through the hydraulic oil transmission, confinement plate 21, guide rod 6 and leader casing move right with barrier film 22 with 5, (calculate good diaphragm deflection scope in advance) when arriving certain position, guide sleeve 7 pressure springs 8 move right before driving, and preceding guide sleeve groove 25 is communicated with preceding guide holder groove 4, under the effect of outlet pressure, hydraulic oil is arranged to recuperation valve fuel tank 20 by drain mast 11 by the second cylindrical groove 9 on preceding guide holder groove 4, the pump housing.When hydraulic-oil quantity is not enough; along with piston 2 is moved to the left, through the hydraulic oil transmission, confinement plate 21, guide rod 6 and limited ring 19 are followed barrier film 22 and are moved to the left; (calculate good diaphragm deflection scope in advance) when arriving certain position; piston 2 continues to be moved to the left, and guide rod 6 promotes back guide sleeve 15 pressure springs 16 and is moved to the left, and back guide sleeve groove 26 is communicated with back guide holder groove 14; limited ring 19 contacts with back guide holder 17; form sealing surface, avoid barrier film 22 to continue distortion, effectively protect barrier film.Along with piston 2 continues to left movement, vacuum up in the hydraulic pressure cavity, recuperation valve 18 is opened, and replenishes hydraulic oil in hydraulic pressure cavity.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (3)
1. reciprocating hydraulic diaphragm pump, comprise piston, what described piston can axially reciprocatingly slide is installed in the piston cylinder, it is characterized in that: described piston cylinder is connected with the pump housing, before being provided with in the described pump housing, back guide holder, before described, being equipped with in the back guide holder can axially movable guide sleeve, be provided with Returnning spring between described guide sleeve and the guide holder, described guide sleeve is provided with groove, before described, be equipped with a guide rod in the back guide sleeve, described guide rod left end is provided with leader casing, its right-hand member is provided with a limited ring, described limited ring is fixed by the confinement plate of guide rod right-hand member, described confinement plate two ends are connected with barrier film, the other end of described barrier film is connected on the pump housing, described barrier film, the front end of confinement plate is the airtight cavity volume of dress hydraulic oil in one, its rear end is a fed sheet of a media cavity volume, the bottom of the described pump housing is provided with a recuperation valve, described recuperation valve is communicated with back guide holder groove by the first cylindrical groove on the aperture connection pump housing, the guide holder groove is communicated with drain mast by the second cylindrical groove on the pump housing before described, and described drain mast is communicated with the recuperation valve fuel tank.
2. reciprocating hydraulic diaphragm pump according to claim 1 is characterized in that: described piston cylinder is connected with the pump housing by flange.
3. reciprocating hydraulic diaphragm pump according to claim 1 and 2 is characterized in that: described barrier film is fixedlyed connected with confinement plate by the gland of confinement plate right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203515822U CN201635971U (en) | 2009-12-26 | 2009-12-26 | Reciprocating type hydraulic membrane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203515822U CN201635971U (en) | 2009-12-26 | 2009-12-26 | Reciprocating type hydraulic membrane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635971U true CN201635971U (en) | 2010-11-17 |
Family
ID=43080461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203515822U Expired - Lifetime CN201635971U (en) | 2009-12-26 | 2009-12-26 | Reciprocating type hydraulic membrane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635971U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241698A (en) * | 2013-05-28 | 2013-08-14 | 姜孟泽 | Isobaric difference seal lubrication supercharged ore pulp conveying device |
| CN105209758A (en) * | 2013-05-16 | 2015-12-30 | 卓越有限公司 | Diaphragm pump having position control |
| CN105971859A (en) * | 2016-07-19 | 2016-09-28 | 中国有色(沈阳)泵业有限公司 | Load shedding system for heavy load membrane pump |
| CN112189094A (en) * | 2018-05-15 | 2021-01-05 | 普罗名特有限责任公司 | Diaphragm system controller with magnetically held closure element |
-
2009
- 2009-12-26 CN CN2009203515822U patent/CN201635971U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105209758A (en) * | 2013-05-16 | 2015-12-30 | 卓越有限公司 | Diaphragm pump having position control |
| CN105209758B (en) * | 2013-05-16 | 2017-09-01 | 卓越有限公司 | Membrane pump with position control |
| US9964105B2 (en) | 2013-05-16 | 2018-05-08 | Prominent Gmbh | Diaphragm pump having position control |
| CN103241698A (en) * | 2013-05-28 | 2013-08-14 | 姜孟泽 | Isobaric difference seal lubrication supercharged ore pulp conveying device |
| CN103241698B (en) * | 2013-05-28 | 2015-04-22 | 姜孟泽 | Isobaric difference seal lubrication supercharged ore pulp conveying device |
| CN105971859A (en) * | 2016-07-19 | 2016-09-28 | 中国有色(沈阳)泵业有限公司 | Load shedding system for heavy load membrane pump |
| CN112189094A (en) * | 2018-05-15 | 2021-01-05 | 普罗名特有限责任公司 | Diaphragm system controller with magnetically held closure element |
| CN112189094B (en) * | 2018-05-15 | 2022-11-29 | 普罗名特有限责任公司 | Diaphragm system controller with magnetically held closure element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20091226 |