CN103423144A - Accident prevention safety structure - Google Patents
Accident prevention safety structure Download PDFInfo
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- CN103423144A CN103423144A CN2013103718334A CN201310371833A CN103423144A CN 103423144 A CN103423144 A CN 103423144A CN 2013103718334 A CN2013103718334 A CN 2013103718334A CN 201310371833 A CN201310371833 A CN 201310371833A CN 103423144 A CN103423144 A CN 103423144A
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- plunger frame
- cover plate
- outlet valve
- pressure
- front shroud
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Abstract
The invention discloses an accident prevention safety structure, and relates to an accident prevention safety structure for a high-pressure pump. A water outlet valve and a plunger frame are arranged on a pump cover. A plunger frame front shroud cover plate is arranged on the plunger frame, and covers the water outlet valve. A safety hole is formed in the water outlet valve. A safety part is arranged above the safety hole, and is fixedly connected with the water outlet valve in a sealed way; a gap is formed between the plunger frame front shroud cover plate and the safety part. Compared with the prior art, the accident prevention safety structure has the advantages that a pressure bearing part of the high-pressure pump can be prevented from being burst or exploded in case of an accident of the high-pressure pump, and pressure in the pump can also be rapidly released.
Description
Technical field
The present invention relates to the anti-unexpected safeguard construction of a kind of high-pressure service pump, be specially a kind of a kind of anti-unexpected safeguard construction for high-pressure plunger pump.
Background technique
High-pressure plunger pump has very high pressure due to inner in the course of the work, once meet accident, as: pressure-adjustable unloading valves lost efficacy, rises that the one-way valve of Unloading Effect is malfunctioning, spray nozzle clogging etc., has the possibility that high-pressure service pump pressure-containing member explosion or blast occur.Based on factor of safety, must the configuration safety protection device on high-pressure service pump.Use field at high-pressure cleaning device, the commercial high-pressure service pump that general pressure is greater than 350BAR has structurally all been settled independently safety protective valve.And, at the Civil High Pressure pump, particularly, on the cleaning high-pressure service pump of pressure lower than 210BAR, based on Cost Problems, all do not consider to settle safety protective valve.Once also can be very easy to occur security incident but the faults such as explosion or blast occur these Civil High Pressure pumps, therefore be badly in need of now a kind of cost that neither increases, can play again the anti-unexpected safeguard construction of safety protection function.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of anti-unexpected safeguard construction is provided, can when high-pressure plunger pump meets accident, guarantee that the high-pressure service pump pressure-containing member explosion or blast can not occur, can also quick relief pump internal pressure.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: a kind of anti-unexpected safeguard construction, comprise pump cover and plunger frame, be provided with outlet valve and plunger frame on described pump cover, be provided with plunger frame front shroud cover plate on described plunger frame, described plunger frame front shroud cover plate hides on described outlet valve, be provided with safety vent on described outlet valve, described safety vent top is provided with the safety member that seals and be fixedly connected with described outlet valve, between described plunger frame front shroud cover plate and described safety member, is provided with gap.Arrange like this, high-pressure service pump in working order under all the time in high pressure conditions, if once occur, pressure-adjustable unloading valves lost efficacy, rose that the one-way valve of Unloading Effect is malfunctioning, spray nozzle clogging etc. problem, pressure in pump can puncture safety member by safety vent fast, allow the interior pressure of pump discharge fast, prevent the explosion of high-pressure service pump pressure-containing member or blast.
In technique scheme, preferred, be provided with bypass channel on described plunger frame front shroud cover plate, described bypass channel is above described safety member, and described gap is described bypass channel.Arrange like this, plunger frame front shroud cover plate covers outlet valve, and plunger frame front shroud cover plate also has bypass channel simultaneously, prevent that the unexpected rear safety member of burst is breakdown, safety member splashes and hurts sb.'s feelings, and limits the unordered injection of high-pressure water flow simultaneously, but sprays towards certain orientation by bypass channel.
In technique scheme, preferred, be provided with several supporting posts on described outlet valve, described plunger frame front shroud cover plate hides on described supporting post, and described gap is the space between described plunger frame front shroud cover plate and described outlet valve.Arrange like this, plunger frame front shroud cover plate covers outlet valve, is provided with supporting post between plunger frame front shroud cover plate and outlet valve simultaneously, prevent that the unexpected rear safety member of burst is breakdown, safety member splashes and hurts sb.'s feelings, and limits the unordered injection of high-pressure water flow simultaneously, but by linear slit horizontal-jet between supporting post.
In technique scheme, preferred, be provided with the pressure transmission through hole in described plunger frame front shroud cover plate, described pressure transmission through hole is arranged on described safety member top, and described gap is described pressure transmission through hole.Arrange like this, plunger frame front shroud cover plate covers outlet valve, and plunger frame front shroud cover plate is provided with the pressure transmission through hole simultaneously, prevents that the unexpected rear safety member of burst is breakdown, and safety member splashes and hurts sb.'s feelings, and limits the unordered injection of high-pressure water flow simultaneously, but flows away by the pressure transmission through hole.
Compared with prior art, the invention has the beneficial effects as follows: can when meeting accident, high-pressure plunger pump guarantee that the high-pressure service pump pressure-containing member explosion or blast can not occur, can also quick relief pump internal pressure.
The accompanying drawing explanation
Fig. 1 is embodiment's 1 cross-sectional schematic.
Fig. 2 is embodiment's 2 cross-sectional schematic.
Fig. 3 is embodiment's 3 cross-sectional schematic.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1: shown in Figure 1, a kind of anti-unexpected safeguard construction, comprise pump cover 1 and plunger frame 2, is fixedly installed outlet valve 3 on pump cover 2, be provided with safety vent 31 on outlet valve 3, safety vent 31 tops are provided with the safety member 32 that seals and be fixedly connected with outlet valve 3.Be provided with plunger frame front shroud cover plate 21 on plunger frame 2, plunger frame front shroud cover plate 21 hides on outlet valve 3, on plunger frame front shroud cover plate 21, is provided with bypass channel 22, and bypass channel 22 is being worn above part 32.When high pressure valve meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32, and high pressure water will flow out by bypass channel 22 after puncturing safety member 32.
Embodiment 2: shown in Figure 2, be provided with plunger frame front shroud cover plate 21 on plunger frame 2, and be provided with several supporting posts 33 on outlet valve 3, plunger frame front shroud cover plate 21 hides on described supporting post 33.When high pressure valve meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32 by safety vent 31, and high pressure water will flow out by the gap between supporting post 33 after puncturing safety member 32.Other features are consistent with embodiment 1.
Embodiment 3: shown in Figure 3, be provided with plunger frame front shroud cover plate 21 on plunger frame 2, and plunger frame front shroud cover plate 21 hides on outlet valve 3, in plunger frame front shroud cover plate 21, is provided with pressure transmission through hole 23, and pressure transmission through hole 23 is arranged on safety member 32 tops.Pressure transmission through hole 23 is larger than safety member 32 diameters near an end diameter of safety member 32.When high pressure valve meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32 by safety vent 31, and high pressure water will flow out by pressure transmission through hole 23 after puncturing safety member 32.This is to connect in addition other equipment at pressure transmission through hole 23, makes high pressure water converge in a place.Other features are consistent with embodiment 1.
The safety member 32 of mentioning in embodiment 1, embodiment 2 and embodiment 3 and safety vent 31, the diameter of safety vent 31 wherein, the thickness of safety member 32 and material must meet under normal high-pressure work state, and safety member 32 can be not breakdown; Under the abnormal pressure state, safety member 32 can be breakdown rapidly.The diameter of safety vent 31, the thickness of safety member 32 and material must be designed according to actual service condition.
At first set, the tensile strength of safety member 32 is σ b, units MPa; The hydraulic pressure peak is Pb, units MPa; Safety member 32 thickness are H, the mm of unit; Safety vent 31 diameters are D; The complete test coefficient is η.Its theoretical foundation is: Pb * D/H/4 >=η * σ b.According to this formula and actual conditions design safety part 32 and safety vent 31.
Claims (4)
1. prevent unexpected safeguard construction for one kind, comprise pump cover (1), it is characterized by, be provided with outlet valve (3) and plunger frame (2) on described pump cover (1), be provided with plunger frame front shroud cover plate (21) on described plunger frame (2), described plunger frame front shroud cover plate (21) hides on described outlet valve (3), be provided with safety vent (31) on described outlet valve (3), described safety vent (31) top is provided with the safety member (32) that seals and be fixedly connected with described outlet valve (3), be provided with gap between described plunger frame front shroud cover plate (21) and described safety member (32).
2. a kind of anti-unexpected safeguard construction according to claim 1, it is characterized by, be provided with bypass channel (22) on described plunger frame front shroud cover plate (21), described bypass channel (22) is in described safety member (32) top, and described gap is described bypass channel (22).
3. a kind of anti-unexpected safeguard construction according to claim 1, it is characterized by, be provided with several supporting posts (33) on described outlet valve (3), described plunger frame front shroud cover plate (21) hides at described supporting post (33) upper, and described gap is the space between described plunger frame front shroud cover plate (21) and described outlet valve (3).
4. a kind of anti-unexpected safeguard construction according to claim 1, it is characterized by, be provided with pressure transmission through hole (23) in described plunger frame front shroud cover plate (21), described pressure transmission through hole (23) is arranged on described safety member (32) top, and described gap is described pressure transmission through hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371833.4A CN103423144B (en) | 2013-08-23 | 2013-08-23 | A kind of anti-unexpected safeguard construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371833.4A CN103423144B (en) | 2013-08-23 | 2013-08-23 | A kind of anti-unexpected safeguard construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423144A true CN103423144A (en) | 2013-12-04 |
| CN103423144B CN103423144B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310371833.4A Active CN103423144B (en) | 2013-08-23 | 2013-08-23 | A kind of anti-unexpected safeguard construction |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856487Y (en) * | 2005-12-16 | 2007-01-10 | 鲍先启 | High pressure cleaning pump |
| DE102007000293A1 (en) * | 2006-05-26 | 2007-11-29 | Denso Corp., Kariya | High pressure fuel pump comprises pump housing and aspiration opening gap for defining aspiration opening, where conveying opening gap defines conveying opening, and fuel is subjected to raised pressure in pressure chamber |
| CN201103536Y (en) * | 2007-09-25 | 2008-08-20 | 上海麦东电器有限公司 | Pressure mechanism of high-pressure water pump |
| JP2010014094A (en) * | 2008-07-07 | 2010-01-21 | Asahi Sunac Corp | Liquid discharge device with abnormality detecting function and control device therefor |
| US20100074782A1 (en) * | 2005-01-19 | 2010-03-25 | Denso Corporation | High pressure pump having plunger |
| CN203453032U (en) * | 2013-08-23 | 2014-02-26 | 宁波恒瑞机械有限公司 | Accident prevention safety structure |
-
2013
- 2013-08-23 CN CN201310371833.4A patent/CN103423144B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100074782A1 (en) * | 2005-01-19 | 2010-03-25 | Denso Corporation | High pressure pump having plunger |
| CN2856487Y (en) * | 2005-12-16 | 2007-01-10 | 鲍先启 | High pressure cleaning pump |
| DE102007000293A1 (en) * | 2006-05-26 | 2007-11-29 | Denso Corp., Kariya | High pressure fuel pump comprises pump housing and aspiration opening gap for defining aspiration opening, where conveying opening gap defines conveying opening, and fuel is subjected to raised pressure in pressure chamber |
| CN201103536Y (en) * | 2007-09-25 | 2008-08-20 | 上海麦东电器有限公司 | Pressure mechanism of high-pressure water pump |
| JP2010014094A (en) * | 2008-07-07 | 2010-01-21 | Asahi Sunac Corp | Liquid discharge device with abnormality detecting function and control device therefor |
| CN203453032U (en) * | 2013-08-23 | 2014-02-26 | 宁波恒瑞机械有限公司 | Accident prevention safety structure |
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| Publication number | Publication date |
|---|---|
| CN103423144B (en) | 2015-08-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Effective date of registration: 20180302 Address after: 315000 Dongming Road, Zhenhai Economic Development Zone, Ningbo, Zhejiang Province, No. 618 Patentee after: NINGBO HEJIE CLEANING EQUIPMENT CO., LTD. Address before: 315221 Dongming Road, Zhenhai Economic Development Zone, Ningbo, Zhejiang Province, No. 618 Patentee before: Ningbo Herray Machinery Corporation |
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| TR01 | Transfer of patent right |