CN103527531A - Totally-sealed pressurizer - Google Patents
Totally-sealed pressurizer Download PDFInfo
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- CN103527531A CN103527531A CN201210230993.2A CN201210230993A CN103527531A CN 103527531 A CN103527531 A CN 103527531A CN 201210230993 A CN201210230993 A CN 201210230993A CN 103527531 A CN103527531 A CN 103527531A
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- Prior art keywords
- end cover
- totally
- cap assembly
- housing
- cup
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Abstract
The invention relates to pressurizers, in particular to a totally-sealed pressurizer. The totally-sealed pressurizer comprises an end cover component, a metal bellow component, a cup body, a shell, an inflation nozzle and a metal cover, wherein the two sides of the metal bellow component are connected with the cup body and the end cover component respectively, the inflation nozzle which is communicated with the inside of the end cover component is arranged on the end cover component, the metal cover is arranged outside the inflation nozzle in a sleeved mode, the metal cover is connected with the end cover component, and one side of the shell is connected with the end cover component. According to the totally-sealed pressurizer, a whole air chamber is of a rubberless static seal structure, all external connectors are welded solidly, the sealing reliability is high, the purpose of pressurizing a hydraulic system can be achieved, the requirement that air is stored for long without being supplied is met, and the requirement that a closed hydraulic system is free of leakage when the air is stored for long is also met.
Description
Technical field
The present invention relates to a kind of supercharging device, be specifically related to a kind of totally-enclosed supercharging device for closed type hydraulic system.
Background technique
Existing closed type hydraulic system adopts plunger booster mode conventionally, between fuel tank and high pressure air cavity, movably piston is installed, and the pressure of high pressure air cavity acts on the hydraulic oil in fuel tank by piston, reaches the object of supercharging.Conventionally on piston, there is rubber sealing structure, hydraulic oil is not contacted with high pressure air.Rubber material itself is easily aging, so this supercharging mode is difficult to reach zero leakage in reality is stored, so the frequent tonifying Qi of system needs, can not meet long-time (more than 27 years) and store requirement.
Summary of the invention
The object of the present invention is to provide a kind of totally-enclosed supercharging device, this installs same whole air cavity without rubber static seal structure, external interface all welds, sealing reliability is high, can either reach the object to hydraulic system supercharging, meet the requirement of long time stored not tonifying Qi, can meet again the leak free requirement of the long-term storage of closed type hydraulic system.
Realize the technological scheme of the object of the invention: a kind of totally-enclosed supercharging device, it comprises end-cap assembly, corrugated metal pipe components, cup, housing, charging air inlet, metal covering, the both sides of corrugated metal pipe components are connected with cup, end-cap assembly respectively, end-cap assembly is provided with the charging air inlet with its internal communication, charging air inlet overcoat has metal covering, metal covering is connected with end-cap assembly, and a side of housing is connected with end-cap assembly.
The opposite side of described housing is connected with flange.
Described end-cap assembly is comprised of Titanium Alloy End Cover Part and stainless steel cup, stainless steel cup and corrugated metal pipe components welding, Titanium Alloy End Cover Part and housing welding.
Effective effect of the present invention is: the scheme that the present invention adopts two kinds of supercharging modes of corrugated metal pipe components and high pressure nitrogen to combine, can provide sufficiently high pressure for closed type hydraulic system, more than boost pressure can reach 1MPa.The interface in supercharging device mesohigh nitrogen chamber has adopted complete welding method, air cavity just becomes full-closed structure: end-cap assembly adopts titanium steel Pervasion Weld Technology, therefore can be with the corrugated metal pipe components of stainless steel material, the housing of titanium alloy material is welded into firmly one; After completing high pressure nitrogen charge operation, then metal covering and the end-cap assembly of charging air inlet outside are welded, making high pressure air cavity is full-closed structure, therefore whole air cavity is without rubber static seal structure, external interface all welds, and sealing reliability is high, can meet the requirement of long time stored not tonifying Qi.According to helium, leak testing result, the helium leak rate of this supercharging device is lower than 10
-7(m
3pa/s), can reach its storage period more than 27 years, in storage period, not need tonifying Qi.The present invention is applicable to the closed type hydraulic system that storage period is long, sealing reliability is had relatively high expectations.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of totally-enclosed supercharging device provided by the present invention;
Fig. 2 is the structural representation of end-cap assembly provided by the present invention;
Fig. 3 is the A partial enlarged drawing of Fig. 2;
Fig. 4 is the C partial enlarged drawing of Fig. 1.
In figure: 1. end-cap assembly, 2. corrugated metal pipe components, 3. cup, 4. housing, 5. charging air inlet, 6. metal covering, 7. flange, 8. stainless steel cup, 9. Titanium Alloy End Cover Part, 10. charging air inlet mounting hole, B. titanium alloy and stainless steel face of weld, D. titanium alloy face of weld.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of totally-enclosed supercharging device provided by the present invention comprises end-cap assembly 1, corrugated metal pipe components 2, cup 3, housing 4, charging air inlet 5, metal covering 6.End-cap assembly 1 is formed by Diffusion Welding by Titanium Alloy End Cover Part 9 and stainless steel cup 8, and as shown in Figure 3, titanium alloy and stainless steel face of weld B are the diffusion welding junction of Titanium Alloy End Cover Part 9 and stainless steel cup 8.End-cap assembly 1 is to be formed by titanium alloy and stainless steel diffusion welding, and the processing technology of end-cap assembly 1 has been used the foreign material interconnection technique of complicated face of weld in prior art, guarantees that material has very high join strength.End-cap assembly 1 can meet strict bubble detection and helium and leak testing requirement.Stainless steel cup 8 is annulus, and Titanium Alloy End Cover Part 9 is bowl-shape.As shown in Figures 2 and 3, have charging air inlet mounting hole 10 in Titanium Alloy End Cover Part 9, charging air inlet mounting hole 10 is the female through hole of tool, and charging air inlet 5 is installed in charging air inlet mounting hole 10 by screw-thread fit.
As shown in Figure 1, corrugated metal pipe components 2 is comprised of by laser bonding cold-rolling stainless steel wave plate.Wave plate has good intensity, toughness and welding performance, and has certain compression stroke (range can reach 60mm more than).Seamless welding is carried out with the stainless steel cup 8 of cup 3, end-cap assembly 1 respectively in the both sides of corrugated metal pipe components 2.The main body of cup 3 is laminar, the left side seamless welding of the right side edge of cup 3 and corrugated metal pipe components 2.
As shown in Figure 1, housing 4 is main components, a side welded flange 7 of housing 4.One side of flange 7 can adopt the methods such as welding be connected with hydraulic system and fix, and the Titanium Alloy End Cover Part 9 in the opposite side of housing 4 and end-cap assembly 1 is carried out electron beam welding.As shown in Figure 1, Figure 2 and Figure 4, Titanium Alloy End Cover Part 9 adopts identical titanium alloy material welding with housing 4, and the titanium alloy face of weld D in Fig. 4 is the face of weld of Titanium Alloy End Cover Part 9 and housing 4.Housing 4 is hollow cylinder.
The effect of charging air inlet 5 is air cavity conducting and disconnections of controlling elevated pressure nitrogen source of the gas and fuel tank.After completing gas replenishment process, in the outside of charging air inlet 5, put a metal covering 6, Titanium Alloy End Cover Part 9 firm welding by metal covering 6 with end-cap assembly 1.As can be seen from Figure 1, the air cavity of whole supercharging device is closure completely, the air cavity of this sealing consists of the inner chamber of end-cap assembly 1, the inner chamber of the inner chamber of corrugated metal pipe components 2, metal covering 6 and cup 3, and the position of all connections is all to adopt welding procedure to complete, without rubber sealing structure.
The working procedure of a kind of totally-enclosed supercharging device provided by the present invention is as follows: by the air cavity of 5 pairs of these supercharging devices of charging air inlet, input specified high pressure nitrogen (conventionally in 1MPa), now corrugated metal pipe components 2 is stretched over the longest state.After having inflated, metal covering 6 is installed, metal covering 6 and end-cap assembly 1 are welded.Flange 7 by supercharging device by its one end is installed in hydraulic system, carry out the hydraulic-oil filling of hydraulic system, the axial total length of corrugated metal pipe components 2 can shorten gradually, when the hydraulic oil in hydraulic system reaches rated pressure value (conventionally in 1.5MPa), filling process stops.Now corrugated metal pipe components 2 has certain compression stroke, but does not reach also (being that decrement reaches maximum) state of pressure.In the using process of this supercharging device, corrugated metal pipe components 2 can be for the expansion of hydraulic oil or is dwindled the volume that provides certain (maximum can reach 0.6L more than).
In conjunction with the accompanying drawings and embodiments the present invention is explained in detail above, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.The content not being described in detail in the present invention all can adopt prior art.
Claims (3)
1. a totally-enclosed supercharging device, it is characterized in that: it comprises end-cap assembly (1), corrugated metal pipe components (2), cup (3), housing (4), charging air inlet (5), metal covering (6), the both sides of corrugated metal pipe components (2) are connected with cup (3), end-cap assembly (1) respectively, end-cap assembly (1) is provided with the charging air inlet (5) with its internal communication, charging air inlet (5) overcoat has metal covering (6), metal covering (6) is connected with end-cap assembly (1), and a side of housing (4) is connected with end-cap assembly (1).
2. a kind of totally-enclosed supercharging device according to claim 1, is characterized in that: the opposite side of described housing (4) is connected with flange (7).
3. a kind of totally-enclosed supercharging device according to claim 1 and 2, it is characterized in that: described end-cap assembly (1) is comprised of Titanium Alloy End Cover Part (9) and stainless steel cup (8), stainless steel cup (8) and corrugated metal pipe components (2) welding, Titanium Alloy End Cover Part (9) and housing (4) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230993.2A CN103527531A (en) | 2012-07-04 | 2012-07-04 | Totally-sealed pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230993.2A CN103527531A (en) | 2012-07-04 | 2012-07-04 | Totally-sealed pressurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527531A true CN103527531A (en) | 2014-01-22 |
Family
ID=49929791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210230993.2A Pending CN103527531A (en) | 2012-07-04 | 2012-07-04 | Totally-sealed pressurizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527531A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640782A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Self-pressurized oil tank device |
| CN108757597A (en) * | 2018-08-06 | 2018-11-06 | 山东大学 | A kind of pressure-stabilizing supercharging tank mounting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1178171A (en) * | 1997-09-29 | 1998-04-08 | 曹建钢 | Membrane accumulator |
| CN2672382Y (en) * | 2004-02-06 | 2005-01-19 | 丹东克隆集团有限责任公司 | Welding metal currugated pipe type piston booster tank |
| CN201363326Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Corrugated tube pressure balancer |
| CN201363418Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Rubber corrugated tube pressure balancer |
| JP2010174985A (en) * | 2009-01-29 | 2010-08-12 | Nhk Spring Co Ltd | Method for filling gas into accumulator |
-
2012
- 2012-07-04 CN CN201210230993.2A patent/CN103527531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1178171A (en) * | 1997-09-29 | 1998-04-08 | 曹建钢 | Membrane accumulator |
| CN2672382Y (en) * | 2004-02-06 | 2005-01-19 | 丹东克隆集团有限责任公司 | Welding metal currugated pipe type piston booster tank |
| JP2010174985A (en) * | 2009-01-29 | 2010-08-12 | Nhk Spring Co Ltd | Method for filling gas into accumulator |
| CN201363326Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Corrugated tube pressure balancer |
| CN201363418Y (en) * | 2009-03-03 | 2009-12-16 | 丹东克隆集团有限责任公司 | Rubber corrugated tube pressure balancer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640782A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Self-pressurized oil tank device |
| CN108757597A (en) * | 2018-08-06 | 2018-11-06 | 山东大学 | A kind of pressure-stabilizing supercharging tank mounting |
| CN108757597B (en) * | 2018-08-06 | 2023-10-03 | 山东大学 | Pressure stabilizing and pressurizing oil tank device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |