CN103423144B - A kind of anti-unexpected safeguard construction - Google Patents

A kind of anti-unexpected safeguard construction Download PDF

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Publication number
CN103423144B
CN103423144B CN201310371833.4A CN201310371833A CN103423144B CN 103423144 B CN103423144 B CN 103423144B CN 201310371833 A CN201310371833 A CN 201310371833A CN 103423144 B CN103423144 B CN 103423144B
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CN
China
Prior art keywords
described
provided
cover plate
plunger frame
front shroud
Prior art date
Application number
CN201310371833.4A
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Chinese (zh)
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CN103423144A (en
Inventor
顾为德
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宁波恒瑞机械有限公司
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Priority to CN201310371833.4A priority Critical patent/CN103423144B/en
Publication of CN103423144A publication Critical patent/CN103423144A/en
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Publication of CN103423144B publication Critical patent/CN103423144B/en

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Abstract

A kind of anti-unexpected safeguard construction, relate to the anti-unexpected safeguard construction of a kind of high-pressure service pump, described pump cover is provided with outlet valve and plunger frame, described plunger frame is provided with plunger frame front shroud cover plate, described plunger frame front shroud cover plate hides on described outlet valve, described outlet valve is provided with safety vent, is provided with above described safety vent and seals and the safety member be fixedly connected with described outlet valve, between described plunger frame front shroud cover plate and described safety member, be provided with gap.Compared with prior art, the present invention can ensure when high-pressure plunger pump meets accident that explosion or blast can not occur high-pressure service pump pressure-containing member, can also quick relief pump internal pressure.

Description

A kind of anti-unexpected safeguard construction

Technical field

The present invention relates to the anti-unexpected safeguard construction of a kind of high-pressure service pump, be specially the anti-unexpected safeguard construction of a kind of one 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, play that the one-way valve of Unloading Effect is malfunctioning, spray nozzle clogging etc., there is the possibility that the explosion of high-pressure service pump pressure-containing member or blast occur.Based on factor of safety, high-pressure service pump must configure safety protection device.Use field at high-pressure cleaning device, independently safety protective valve structurally all settled by the commercial high voltage pump that general pressure is greater than 350BAR.And at Civil High Pressure pump, particularly pressure is lower than on the cleaning high-pressure service pump of 210BAR, all do not consider to settle safety protective valve based on Cost Problems.But these Civil High Pressure pumps also can be very easy to generation security incident once there is the faults such as explosion or blast, being therefore badly in need of now one neither increases cost, 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, provide a kind of anti-unexpected safeguard construction, can ensure when high-pressure plunger pump meets accident that explosion or blast can not occur high-pressure service pump pressure-containing member, 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, described pump cover is provided with outlet valve and plunger frame, described plunger frame is provided with plunger frame front shroud cover plate, described plunger frame front shroud cover plate hides on described outlet valve, described outlet valve is provided with safety vent, be provided with above described safety vent and seal and the safety member be fixedly connected with described outlet valve, between described plunger frame front shroud cover plate and described safety member, be provided with gap.Such setting, high-pressure service pump in working order under be in high pressure conditions all the time, if once occur that pressure-adjustable unloading valves lost efficacy, plays that the one-way valve of Unloading Effect is malfunctioning, spray nozzle clogging etc. problem, pressure in pump can puncture safety member quickly through safety vent, allow the pressure in pump discharge fast, prevent high-pressure service pump pressure-containing member from bursting or blast.

In technique scheme, preferably, described plunger frame front shroud cover plate is provided with bypass channel, and described bypass channel is above described safety member, and described gap is described bypass channel.Such setting, plunger frame front shroud cover plate covers outlet valve, and plunger frame front shroud cover plate also has bypass channel simultaneously, after preventing burst unexpected, safety member is breakdown, safety member splashes and hurts sb.'s feelings, and with the unordered injection of limit high-pressure water flow, but is sprayed towards certain orientation by bypass channel.

In technique scheme, preferably, described outlet valve is provided with several supporting posts, 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.Such setting, 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, after preventing burst unexpected, safety member is breakdown, safety member splashes and hurts sb.'s feelings, with the unordered injection of limit high-pressure water flow, but by linear slit horizontal-jet between supporting post.

In technique scheme, preferably, be provided with pressure transmission through hole in described plunger frame front shroud cover plate, described pressure transmission through hole is arranged on above described safety member, and described gap is described pressure transmission through hole.Such setting, plunger frame front shroud cover plate covers outlet valve, and plunger frame front shroud cover plate is provided with pressure transmission through hole simultaneously, and after preventing burst unexpected, safety member is breakdown, and safety member splashes and hurts sb.'s feelings, and with the unordered injection of limit high-pressure water flow, but is flowed away by pressure transmission through hole.

Compared with prior art, the invention has the beneficial effects as follows: can ensure when high-pressure plunger pump meets accident that explosion or blast can not occur high-pressure service pump pressure-containing member, can also quick relief pump internal pressure.

Accompanying drawing explanation

Fig. 1 is embodiment 1 cross-sectional schematic.

Fig. 2 is embodiment 2 cross-sectional schematic.

Fig. 3 is embodiment 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, comprises pump cover 1 and plunger frame 2, pump cover 1 is fixedly installed outlet valve 3, outlet valve 3 is provided with safety vent 31, is provided with above safety vent 31 and seals and the safety member 32 be fixedly connected with outlet valve 3.Plunger frame 2 is provided with plunger frame front shroud cover plate 21, plunger frame front shroud cover plate 21 hides on outlet valve 3, and plunger frame front shroud cover plate 21 is provided with bypass channel 22, and bypass channel 22 is above safety member 32.When high-pressure plunger pump meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32, will be flowed out after high pressure water punctures safety member 32 by bypass channel 22.

Embodiment 2: shown in Figure 2, plunger frame 2 are provided with plunger frame front shroud cover plate 21, outlet valve 3 are provided with several supporting posts 33, and plunger frame front shroud cover plate 21 hides on described supporting post 33.When high-pressure plunger pump meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32 by safety vent 31, will be flowed out after high pressure water punctures safety member 32 by the gap between supporting post 33.Other features are consistent with embodiment 1.

Embodiment 3: shown in Figure 3, plunger frame 2 are provided with plunger frame front shroud cover plate 21, and plunger frame front shroud cover plate 21 hides on outlet valve 3, and be provided with pressure transmission through hole 23 in plunger frame front shroud cover plate 21, pressure transmission through hole 23 is arranged on above safety member 32.Pressure transmission through hole 23 is larger than safety member 32 diameter near one end diameter of safety member 32.When high-pressure plunger pump meets accident situation, pump cover 1 inner high voltage water can puncture safety member 32 by safety vent 31, will be flowed out after high pressure water punctures safety member 32 by pressure transmission through hole 23.This can connect other equipment in addition 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 mentioned in embodiment 1, embodiment 2 and embodiment 3 and safety vent 31, the wherein diameter of safety vent 31, the thickness of safety member 32 and material must meet under normal high pressure working state, and safety member 32 can not be breakdown; Under 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 design according to actual service condition.

First set, the tensile strength of safety member 32 is σ b, units MPa; Hydraulic pressure peak is Pb, units MPa; Safety member 32 thickness is H, unit mm; Safety vent 31 diameter is D; 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. an anti-unexpected safeguard construction, comprise pump cover (1), it is characterized by, described pump cover (1) is provided with outlet valve (3) and plunger frame (2), described plunger frame (2) is provided with plunger frame front shroud cover plate (21), described plunger frame front shroud cover plate (21) hides on described outlet valve (3), described outlet valve (3) is provided with safety vent (31), described safety vent (31) top is provided with and seals and the safety member be fixedly connected with (32) with described outlet valve (3), gap is provided with between described plunger frame front shroud cover plate (21) and described safety member (32).
2. the anti-unexpected safeguard construction of one according to claim 1, it is characterized by, described plunger frame front shroud cover plate (21) is provided with bypass channel (22), and described bypass channel (22) is in described safety member (32) top, and described gap is described bypass channel (22).
3. the anti-unexpected safeguard construction of one according to claim 1, it is characterized by, described outlet valve (3) is provided with several supporting posts (33), described plunger frame front shroud cover plate (21) hides on described supporting post (33), and described gap is the space between described plunger frame front shroud cover plate (21) and described outlet valve (3).
4. the anti-unexpected safeguard construction of one according to claim 1, it is characterized by, pressure transmission through hole (23) is provided with 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).
CN201310371833.4A 2013-08-23 2013-08-23 A kind of anti-unexpected safeguard construction CN103423144B (en)

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

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CN103423144A CN103423144A (en) 2013-12-04
CN103423144B true CN103423144B (en) 2015-08-26

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Citations (4)

* Cited by examiner, † Cited by third party
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
CN203453032U (en) * 2013-08-23 2014-02-26 宁波恒瑞机械有限公司 Accident prevention safety structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4215000B2 (en) * 2005-01-19 2009-01-28 株式会社デンソー High pressure pump
JP5339796B2 (en) * 2008-07-07 2013-11-13 旭サナック株式会社 Liquid ejection device having abnormality detection function and control device thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
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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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

TR01 Transfer of patent right