CN203214460U - Pulsation damper - Google Patents
Pulsation damper Download PDFInfo
- Publication number
- CN203214460U CN203214460U CN 201320158649 CN201320158649U CN203214460U CN 203214460 U CN203214460 U CN 203214460U CN 201320158649 CN201320158649 CN 201320158649 CN 201320158649 U CN201320158649 U CN 201320158649U CN 203214460 U CN203214460 U CN 203214460U
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- CN
- China
- Prior art keywords
- top cover
- cavity
- damping body
- ripple damper
- damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a pulsation damper which comprises a damper body and a top cover. A cavity is arranged in the damper body, and a solution inlet is arranged at the lower end of the damper body. The top cover is connected with the upper end of the damper body to close the cavity, and a solution outlet is arranged in the top cover. The solution inlet and the solution outlet are communicated with the cavity. The starting working pressure of the pulsation damper can reach 60-80 MPa, pressure pulsation of an ultrahigh pressure constant flow pump due to closing of a one-way valve can be effectively reduced, and noise of a detector is reduced.
Description
Technical field
The utility model relates to a kind of ripple damper, relates in particular to a kind of ripple damper of ultrahigh pressure constant flow pump.
Background technique
Ripple damper mainly comprises online metal ring damper, compressed fluid damper, resonant cavity type damper and adjustable spring damper in the prior art.The common principle of all dampers all is the elastic performance that utilizes different objects different, elastomeric objects is compressed with stored energy when system pressure is big, when system pressure hour elastomeric objects discharges the energy of storage again, reach the purpose that reduces the system pressure fluctuation with this.But mainly there are problems such as complex structure, manufacture cost height, poor reliability in above-mentioned damper commonly known in the art.The voltage endurance capability of the ripple damper of prior art can reach 42MPa, but when pressure surpassed 60MPa, ripple damper leaked easily, thereby does not reach the effect of the pulsation that elimination causes because of closed check valve.
The model utility content
The utility model has overcome prior art can't bear more defective such as high pressure, has proposed a kind of ripple damper.
The utility model proposes a kind of ripple damper, comprising:
The damping body, its inside is provided with cavity, and the lower end is provided with the solution inlet opening;
Top cover, its upper end with described damping body are connected the described cavity of sealing, and described top cover is provided with the solution delivery outlet;
Described solution inlet opening is connected with described cavity respectively with described solution delivery outlet.
Wherein, the upper end of described damping body and described top cover are threaded by intermeshing.
Wherein, described damping body adopts the 316L stainless steel material to make; Described top cover adopts the 316L stainless steel material to make.
Wherein, adopt high-pressure seal ring that the cavity of described damping body is sealed between described damping body and the described top cover.
Wherein, be provided with elastomer in the cavity of described damping body, be provided with the 0.3-0.5mm gap between described elastomeric upper end and the described top cover.
Wherein, described elastomer adopts high performance engineering plastics to make.
Wherein, described elastomeric upper end is provided with a horizontal deep trouth.
Wherein, be provided with holddown spring in the described deep trouth, described top cover pushes described elastomer by described holddown spring.
It is elastomer-filled to the cavity of damping body that the utility model adopts, and when moment pressurization or decompression took place in the solution inlet opening, solution all can be because elastomeric equivalent distortion obtains buffering, thereby makes the pressure of solution delivery outlet be in stable status all the time.
Of the present utility model working pressure can reach 60～80MPa, can effectively reduce the pressure pulsation that the ultrahigh pressure constant flow pump causes when closed check valve, reduces the noise of detector.
Description of drawings
Fig. 1 is the sectional view of the utility model ripple damper.
Fig. 2 is the schematic representation of the utility model ripple damper.
Fig. 3 is elastomeric schematic representation.
Fig. 4 is the schematic representation of top cover.
Fig. 5 is the schematic representation of high-pressure seal ring.
Embodiment
In conjunction with following specific embodiments and the drawings, the utility model is described in further detail.Implement process of the present utility model, condition, experimental technique etc., except the following content of mentioning specially, be universal knowledege and the common practise of related domain, the utility model is not particularly limited content.
A working pressure of ripple damper of the present utility model can reach 60～80MPa, can effectively reduce the pressure pulsation that the ultrahigh pressure constant flow pump causes when closed check valve, reduces the noise of detector.The utility model is applicable in the ultrahigh pressure constant flow pump.As shown in Figure 1, the utility model ripple damper mainly comprises damping body 1 and top cover 2.Be provided with cavity in the damping body 1, the diameter of the cavity of damping body 1 inside is 19.6cm in the present embodiment, and its lower end is provided with a solution inlet opening 3.Top cover 2 is provided with a solution delivery outlet 4.Solution inlet opening 3 and solution delivery outlet 4 are communicated with cavity in the damping body 1 respectively.Be provided with worm structure in solution inlet opening 3 and the solution delivery outlet 4, be used for fixedlying connected with the interface of solution conduit, prevent that solution from leaking.
Joint at damping body 1 and top cover 2 is provided with high-pressure seal ring 5, and high-pressure seal ring 5 as shown in Figure 5.High-pressure seal ring 5 has good impact resistance and wear resistance, and hydrophily is relatively poor, can play good seal action, forms high-pressure chamber in the cavity of damping body 1, and prevents that solution is from damping body 1 inner the outflow.
Be provided with elastomer 6 in the cavity of damping body 1 inside.As shown in Figure 3, elastomer is to be made by high performance engineering plastics, and elastomer 6 is filled the inside of full whole cavity, is provided with the 0.3-0.5mm gap between its top and the top cover 2.The utility model is provided with a deep trouth 61 at the top of elastomer 6.Deep trouth 61 is used for preventing from importing liquid because pressure is excessive makes elastomer 6 tops be close to top cover to cause the liquid can't be to 4 circulations of solution delivery outlet.
The utility model is provided with a holddown spring 7 in deep trouth 61.The two ends of holddown spring 7 contact with elastomer 6 with top cover 2 respectively.According to being threaded in the damping body 1, holddown spring 7 is extruding elastomer 6 downwards with top cover 2.
The utility model ripple damper at work, liquid flows in the cavity of damping bodies 1 by solution inlet opening 3.Because of the pressure of its cavity and the pressure of flow of fluid, the elastomer 6 of cavity can produce the distortion of equivalent along with the pressure of liquid.The distortion of elastomer 6 makes the pressurization of liquid inlet moment and decompression all obtain certain buffering, thereby makes the pressure of liquid outlet be in plateau always.
Protection content of the present utility model is not limited to above embodiment.Under the spirit and scope that do not deviate from the model utility design, variation and advantage that those skilled in the art can expect all are included in the utility model, and are protection domain with the appending claims.
Claims (8)
1. a ripple damper is characterized in that, comprising:
Damping body (1), its inside is provided with cavity, and the lower end is provided with solution inlet opening (3);
Top cover (2), its upper end with described damping body (1) are connected the described cavity of sealing, and described top cover (2) is provided with solution delivery outlet (4);
Described solution inlet opening (3) is connected with described cavity respectively with described solution delivery outlet (4).
2. ripple damper as claimed in claim 1 is characterized in that, the upper end of described damping body (1) and described top cover (2) are threaded by intermeshing.
3. ripple damper as claimed in claim 1 is characterized in that, described damping body (1) adopts stainless steel material to make; Described top cover (2) adopts stainless steel material to make.
4. ripple damper as claimed in claim 1 is characterized in that, adopts high-pressure seal ring (5) that the cavity of described damping body (1) is sealed between described damping body (1) and the described top cover (2).
5. ripple damper as claimed in claim 1 is characterized in that, is provided with elastomer (6) in the cavity of described damping body (1), is provided with the 0.3-0.5mm gap between the upper end of described elastomer (6) and the described top cover (2).
6. ripple damper as claimed in claim 5 is characterized in that, described elastomer (6) adopts high performance engineering plastics to make.
7. ripple damper as claimed in claim 5 is characterized in that, the upper end of described elastomer (6) is provided with a horizontal deep trouth (61).
8. ripple damper as claimed in claim 7 is characterized in that, is provided with holddown spring (7) in the described deep trouth (61), and described top cover (2) pushes described elastomer (6) downwards by described holddown spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158649 CN203214460U (en) | 2013-04-01 | 2013-04-01 | Pulsation damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158649 CN203214460U (en) | 2013-04-01 | 2013-04-01 | Pulsation damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214460U true CN203214460U (en) | 2013-09-25 |
Family
ID=49204004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320158649 Expired - Lifetime CN203214460U (en) | 2013-04-01 | 2013-04-01 | Pulsation damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104554217A (en) * | 2013-10-28 | 2015-04-29 | 罗伯特·博世有限公司 | Damper for reducing fluctuation of pressure |
| CN108071569A (en) * | 2017-12-24 | 2018-05-25 | 福建省福安市力德泵业有限公司 | The low pulse high temperature plunger pump of intelligent micro constant current |
-
2013
- 2013-04-01 CN CN 201320158649 patent/CN203214460U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104554217A (en) * | 2013-10-28 | 2015-04-29 | 罗伯特·博世有限公司 | Damper for reducing fluctuation of pressure |
| CN108071569A (en) * | 2017-12-24 | 2018-05-25 | 福建省福安市力德泵业有限公司 | The low pulse high temperature plunger pump of intelligent micro constant current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |