CN203257769U - 70MPa stainless steel diaphragm type energy accumulator - Google Patents
70MPa stainless steel diaphragm type energy accumulator Download PDFInfo
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- CN203257769U CN203257769U CN 201320238259 CN201320238259U CN203257769U CN 203257769 U CN203257769 U CN 203257769U CN 201320238259 CN201320238259 CN 201320238259 CN 201320238259 U CN201320238259 U CN 201320238259U CN 203257769 U CN203257769 U CN 203257769U
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- shell body
- diaphragm
- lower shell
- upper shell
- stainless steel
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Abstract
The utility model relates to a 70MPa stainless steel diaphragm type energy accumulator. A diaphragm leaf is arranged in a lower shell body. A polytetrafluoroethylene seal check ring is arranged on a boss circle of the diaphragm leaf. An upper shell body is arranged in the lower shell body. A lock nut and the lower shell body are connected together in a screw joint mode. The lock nut enables the upper shell body to be tightly pressed and sealed in the lower shell body through the polytetrafluoroethylene seal check ring and the diaphragm leaf. An inflation screw is arranged in an inflation hole of the upper shell body in a screw joint mode through a bonded washer. A protective cap is arranged on an inflation head of the upper shell body in a screw joint mode. The upper shell body and the inflation head are integrated according to the design, and the inflation head, the inflation screw and the bonded washer form an inflation valve. By means of the sealing design of the structure, the effect that the energy accumulator can be used normally under the 70MPa pressure is guaranteed, and therefore the safety and reliability of the 70MPa stainless steel diaphragm type energy accumulator are enhanced. The shell bodies are made of stainless steel materials, appropriate rubber compounding is chosen for the diaphragm leaf according to media and temperatures, and together with the polytetrafluoroethylene seal check ring, the 70MPa stainless steel diaphragm type energy accumulator can be used in all kinds of corrosive media and has the advantages of being long in service life, low in maintenance charge and convenient to maintain.
Description
Technical field
The utility model relates to a kind of 70MPa stainless steel diaphragm accumulator.Be mainly used in all kinds of hydraulic systems, lubrication system, liquid feeding system the accumulation of energy pressurize, subdue impulse oscillation, impact-absorbing, liquid make-up, make system operation more steadily, safety, efficient is higher, energy consumption is lower.
Technical background
The stainless steel diaphragm accumulator of prior art, as shown in Figure 5, for spherical, the connecting thread of its lower shell body 2 is outside thread, tightens with the internal thread of locknut 4 to cooperate; For reaching the 70MPa working pressure, the diameter of locknut 4, thickness, reach all need strengthen, and weight increases, and causes whole product shape size large, and weight is large, have therefore increased installing space, cause the waste of material.It is Split type structure that its upper shell 1 cooperates with gas charging valve 5, and gas charging valve is that the component parts of standard is thimble or valve core structure, and the withstand voltage 63MPa that is no more than can not satisfy the requirement of 70MPa pressure.Its diaphragm 3 directly is assemblied in the middle of the upper-lower casing, press seal, owing to there is not sealing place of Sealing shield ring protection diaphragm, when pressure surpassed 32MPa, high pressure caused whole accumulator product gas leakage leakage of oil with the easy extrusion damage in sealing position of diaphragm 3.
Progress along with science and technology, the industry such as oil, chemical industry, iron and steel, papermaking, engineering machinery, laboratory and field require more and more higher to the pressure of hydraulic system, and use to have in corrosive liquid mediums such as acid, alkali all kinds of, to being extremely restricted in working life of product.Because home and abroad diaphragm accumulator design pressure all is no more than 40MPa at present, so needing a kind of housing is stainless steel, working pressure will reach 70MPa, volume is small and exquisite, installation and maintenance are the stainless steel diaphragm accumulator easily, for system operates steadily, safety, high efficiency, low energy consumption, long lifetime provide reliable guarantee.
Summary of the invention
Deficiency and development need in view of the prior art existence: the purpose of this utility model provides a kind of stainless steel diaphragm accumulator that will solve special media high-pressure service pump Absorbing Fluctuation.
The utility model for achieving the above object, the technological scheme that adopts is: a kind of 70MPa stainless steel diaphragm accumulator, comprise lower shell body, with stopping-off piece die casting all-in-one-piece diaphragm, upper shell, locknut, it is characterized in that: also comprise the teflon seal back-up ring, the inflation screw, bonded washer and protective cap, described lower shell body is the drum shape body of stainless steel, the upper end of lower shell body inwall is stepped inwall, upper end wall at stepped inwall is provided with one section internal thread, on the inwall between stepped inwall upper table surface and the internal thread, radially be provided with two safety discharging air holes, two safety discharging air holes are symmetrical, following table at stepped inwall is provided with a circle groove, and the bottom surface in lower shell body is provided with threaded through hole;
Described diaphragm is the taper drum shape body of quality of rubber materials, is provided with a circle semicircle bulge loop in the bottom surface of taper drum shape body upper end one circle boss;
The outside of described upper shell is made of the stepped cylindrical body of up and down two-part of integrative-structure, adopt stainless steel, the inwall of the lower step shape cylindrical body bottom of upper shell is the hemisphere concave surface, the projection on stepped cylindrical body top, the top of upper shell is pneumatic head, outside at pneumatic head is provided with outside thread, central position at the inflation women's head-ornaments is provided with the air-filled pore that communicates with the hemisphere concave surface, is provided with one section internal thread in air-filled pore;
Described diaphragm places in the lower shell body, one circle groove transition fit of one circle semicircle bulge loop of diaphragm and lower shell body, described teflon seal back-up ring place diaphragm one circle boss above, described upper shell places in the lower shell body, the teflon seal back-up ring, the diaphragm that are provided with in the stepped inwall of the lower step shape cylindrical body of upper shell and lower shell body inwall upper end and the stepped inwall contact cooperation, described locknut is screwed onto with lower shell body, and locknut passes through teflon seal back-up ring, diaphragm press seal in lower shell body with upper shell;
Described inflation screw is screwed onto by bonded washer in the air-filled pore of upper shell, and described protective cap is screwed onto on the upper shell pneumatic head.
The beneficial effects of the utility model are: 1, the Sealing shield ring of teflon material is set at the diaphragm top, has prevented the appearance that diaphragm sealing position crushes injury, guarantee that accumulator works under 70MPa pressure.2, upper shell, lower shell body and locknut adopt cylindrical structural type, and be simple and reliable for structure, easy to assembly, improved stock utilization, reduced cost.3, upper shell and pneumatic head are the integrated design, pneumatic head, inflation screw, bonded washer consist of gas charging valve, adopt the Seal Design of this structure, guaranteed that accumulator normally uses under 70MPa pressure, prevented that the situation that the prior art gas charging valve easily causes spool to fly out to hurt sb.'s feelings from occuring in the large situation of pressure, thereby increased the safety and reliability of product.4, the accumulator profile is cylindrical structure, and with under the isometric(al), volume is little, lightweight, makes things convenient for installation and the use at user scene.5, housing is selected stainless steel material, and diaphragm is selected suitable rubber compounding according to medium and temperature, cooperates the Sealing shield ring of upper polytetrafluoroethylmaterial material again, can satisfy in all kinds of mordant media and use, it is long to have a life-span, the characteristics such as maintenance cost is low, and is easy to maintenance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is lower shell body structural representation of the present utility model;
Fig. 3 is diaphragm structural representation of the present utility model;
Fig. 4 is upper shell structural representation of the present utility model;
Fig. 5 is the structural representation of prior art accumulator.
Embodiment
Shown in Fig. 1,2,3,4; 70MPa stainless steel diaphragm accumulator; comprise lower shell body 1, with stopping-off piece 2 die casting all-in-one-piece diaphragms 3, upper shell 5, locknut 6, also comprise teflon seal back-up ring 4, inflation screw 7, bonded washer 8 and protective cap 9.Lower shell body 1 is the drum shape body of stainless steel, the upper end of lower shell body 1 inwall is stepped inwall, upper end wall at stepped inwall is provided with one section internal thread 1-1, on the inwall between stepped inwall upper table surface and the internal thread 1-1, radially be provided with two safety discharging air hole 1-2, two safety discharging air hole 1-2 are symmetrical, following table at stepped inwall is provided with a circle groove 1-3, and the bottom surface in lower shell body 1 is provided with threaded through hole 1-4.
The outside of upper shell 5 is made of the stepped cylindrical body of up and down two-part of integrative-structure, adopt stainless steel, the inwall of the lower step shape cylindrical body bottom of upper shell 5 is hemisphere concave surface 5-1, to increase the product volume, increase bearing capacity, the projection on stepped cylindrical body top, the top of upper shell 5 is pneumatic head 5-2, be provided with outside thread 5-21 in the outside of pneumatic head 5-2, be provided with the air-filled pore 5-3 that communicates with hemisphere concave surface 5-1 in the central position of pneumatic head 5-2 face, in air-filled pore 5-3, be provided with one section internal thread 5-4.
It is the stainless steel of SUS316 that lower shell body 1, upper shell 5 adopt the trade mark.
Block circle 4 adopts polytetrafluoroethylmaterial material.
3 quality of rubber materials such as the following tables that adopt:
| Rubber material | Operating temperature range | Applicable working medium |
| Nitrile butadiene rubber NBR | -15℃～+80℃ | Mineral oil, hydraulic oil, fire-resistant oil, water, glycol, emulsified liquid, diesel oil, kerosene |
| Low temperature nitrile butadiene rubber LT-NBR | -40℃～+80℃ | Mineral oil, hydraulic oil, fire-resistant oil, water, glycol, emulsified liquid, diesel oil, kerosene |
| Epichlorohydrin rubber ECO | -30℃～+120℃ | Unleaded gas, mineral oil |
| Ethylene propylene rubber EPDM | -20℃～+90℃ | Brake fluid, water-ethylene glycol, wash water, bronsted lowry acids and bases bronsted lowry |
| Fluorine rubber FKM | -10℃～+150℃ | Mineral oil, hydraulic oil, fire-resistant oil, water, glycol, emulsified liquid, diesel oil, kerosene |
The inflation method step is as follows:
1, the protective cap 9 on the accumulator gas-charging connection 5-2 is backed out
2, inflatable tool is connected on the outside thread 5-21 of accumulator gas-charging connection 5-2, tightens and be fixed sealing.
3, be rotated counterclockwise handwheel on the inflatable tool, driven rotary is opened inflation screw 7, slowly inflation in the accumulator.
4, after inflation finishes, turn clockwise and close inflation screw 7.
5, carefully open pressure-relief valve on the inflatable tool, discharge high pressure nitrogen remaining in the inflatable tool.
6, inflatable tool is removed at accumulator gas-charging connection 5-2.
Protective cap 9 is screwed on the accumulator gas-charging connection 5-2.
Claims (2)
1. 70MPa stainless steel diaphragm accumulator, comprise lower shell body (1), with stopping-off piece (2) die casting all-in-one-piece diaphragm (3), upper shell (5), locknut (6), it is characterized in that: also comprise teflon seal back-up ring (4), inflation screw (7), bonded washer (8) and protective cap (9), described lower shell body (1) is the drum shape body of stainless steel, the upper end of lower shell body (1) inwall is stepped inwall, upper end wall at stepped inwall is provided with one section internal thread (1-1), on the inwall between stepped inwall upper table surface and the internal thread (1-1), radially be provided with two safety discharging air holes (1-2), two safety discharging air holes (1-2) symmetry, following table at stepped inwall is provided with a circle groove (1-3), and the bottom surface in lower shell body (1) is provided with threaded through hole (1-4);
Described diaphragm (3) is the taper drum shape body of quality of rubber materials, is provided with a circle semicircle bulge loop (3-2) in the bottom surface of taper drum shape body upper end one circle boss (3-1);
The outside of described upper shell (5) is made of the stepped cylindrical body of up and down two-part of integrative-structure, adopt stainless steel, the inwall of the lower step shape cylindrical body bottom of upper shell (5) is hemisphere concave surface (5-1), the projection on the stepped cylindrical body top, top of upper shell (5) is pneumatic head (5-2), be provided with outside thread (5-21) in the outside of pneumatic head (5-2), be provided with the air-filled pore (5-3) that communicates with hemisphere concave surface (5-1) in the central position of pneumatic head (5-2) face, in air-filled pore (5-3), be provided with one section internal thread (5-4);
Described diaphragm (3) places in the lower shell body (1), one circle semicircle bulge loop (3-2) of diaphragm (3) encloses groove (1-3) transition fit with one of lower shell body (1), described teflon seal back-up ring (4) place diaphragm (3) circle boss (3-1) above, described upper shell (5) places in the lower shell body (1), the teflon seal back-up ring (4) that is provided with in the stepped inwall of the lower step shape cylindrical body of upper shell (5) and lower shell body (1) inwall upper end and the stepped inwall, diaphragm (3) contact cooperates, described locknut (6) is screwed onto with lower shell body (1), and locknut (6) passes through teflon seal back-up ring (4) with upper shell (5), diaphragm (3) press seal is in lower shell body (1);
Described inflation screw (7) is screwed onto in the air-filled pore (5-3) of upper shell (5) by bonded washer (8), and described protective cap (9) is screwed onto on upper shell (5) pneumatic head (5-2).
2. 70MPa stainless steel diaphragm accumulator according to claim 1, it is characterized in that: the quality of rubber materials of described diaphragm (3) is nitrile butadiene rubber NBR or low temperature nitrile butadiene rubber LT-NBR or epichlorohydrin rubber ECO or ethylene propylene rubber EPDM or fluorine rubber FKM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320238259 CN203257769U (en) | 2013-05-06 | 2013-05-06 | 70MPa stainless steel diaphragm type energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320238259 CN203257769U (en) | 2013-05-06 | 2013-05-06 | 70MPa stainless steel diaphragm type energy accumulator |
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| Publication Number | Publication Date |
|---|---|
| CN203257769U true CN203257769U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320238259 Expired - Fee Related CN203257769U (en) | 2013-05-06 | 2013-05-06 | 70MPa stainless steel diaphragm type energy accumulator |
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| Country | Link |
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| CN (1) | CN203257769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206417A (en) * | 2013-05-06 | 2013-07-17 | 布柯玛蓄能器（天津）有限公司 | 70MPa stainless steel diaphragm type energy accumulator |
| CN109265783A (en) * | 2018-08-20 | 2019-01-25 | 国网江苏省电力公司盐城供电公司 | A kind of ageing-resistant transformer oil storage diaphragm |
-
2013
- 2013-05-06 CN CN 201320238259 patent/CN203257769U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206417A (en) * | 2013-05-06 | 2013-07-17 | 布柯玛蓄能器（天津）有限公司 | 70MPa stainless steel diaphragm type energy accumulator |
| CN109265783A (en) * | 2018-08-20 | 2019-01-25 | 国网江苏省电力公司盐城供电公司 | A kind of ageing-resistant transformer oil storage diaphragm |
| CN109265783B (en) * | 2018-08-20 | 2020-08-28 | 国网江苏省电力公司盐城供电公司 | Aging-resistant transformer oil conservator diaphragm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20210506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |