CN205446839U - Relief valve is pressed to emergent elementary errors - Google Patents
Relief valve is pressed to emergent elementary errors Download PDFInfo
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- CN205446839U CN205446839U CN201620226911.0U CN201620226911U CN205446839U CN 205446839 U CN205446839 U CN 205446839U CN 201620226911 U CN201620226911 U CN 201620226911U CN 205446839 U CN205446839 U CN 205446839U
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Abstract
The utility model relates to a relief valve is pressed to emergent elementary errors, valve body are located that outward flange dish one side is equipped with the valve port, the opposite side is equipped with the magnetic cavity that is used for installing the electro -magnet, and the electro -magnet is connected with the power supply line, and the response hole department on the valve body outward flange coils is installed to diaphragm formula pressure sensors's inductive head, its closed -loop of valve disc corresponds with the lip limit of sealing washer, the valve rod of valve disc one side pass the electro -magnet and with set up at the outside hand wheel threaded connection of valve body, the cover is equipped with the spring on the valve rod, when cabin pressure was in set pressure, the spring was pressed the closed -loop of valve disc and is kept closed to the lip limit of sealing washer, when cabin pressure exceeded set pressure, the electro -magnet got elasticity electric and that overcome the spring and drives valve rod and valve disc axial displacement, and the lip limit that closed -loop on the valve disc breaks away from the sealing washer is carried out the flow and is released. The utility model discloses simple structure can open rapidly according to the pressure differential between current cabin and the atmospheric pressure automatically, carries out the flow and releases, can play the guard action to entire system.
Description
Technical field
This utility model relates to a kind of emergent differential pressure relief valve, belongs to super Micropressure safety valve technical field.
Background technology
Specifically seal in space at some, the specific sealing spatial environmentss such as the aseptic operating room of medicament compartment as ultra-clean in height, anti-virus entrance, ship storehouse, for making the toxic and harmful of outdoor cannot be introduced into indoor, so indoor must be made to remain the relatively outdoor ultra-miniature pressure exceeding below 800Pa, make indoor occupant in the case of bearing slight pressure, still can be normally carried out work and life.Seal for these these on locular wall in space and blow vent is installed, and on blow vent or breather, automatic ultra-micropressure pressure limiting adjusting valves is installed, when indoor pressure exceedes the minute-pressure of setting, automatically open up valve, automatically reduce pressure, or periodically room air is replaced, to keep office work personnel energy long-term work and life, and when outdoor has harmful dusty gas, then need quick closedown blow vent.
At present, the sealing under minute-pressure environment is spatially typically the relief valve being not provided with, and only relies on ultra micro pressure automatically pressure limiting key joint.The most current relief valve is frame for movement and opens, cuts out, it is impossible to reach the effect quickly regulated.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, can automatically sense current cabin room pressure, can be according to the pressure reduction between current cabin and atmospheric pressure; can automatically turn on rapidly; carry out flow to release, and the amount of releasing is relatively big, the emergent differential pressure relief valve that can play a protective role whole system.
This utility model is that the technical scheme reaching above-mentioned purpose is: a kind of emergent differential pressure relief valve, it is characterised in that: include valve body, valve disc, valve rod and for sensing the diaphragm pressure induction apparatus of cabin pressure and for controlling the electric magnet that valve rod moves axially；Described valve body is positioned at that outward flange dish side is provided with valve port, opposite side is provided with the magnetic cavity for installing electric magnet, and valve body is positioned at the valve wall of valve disc side and is provided with and the outside pore communicated, the electric magnet being arranged in magnetic cavity is connected with supply line, and the inductive head of diaphragm pressure induction apparatus is arranged at the sensing hole on valve body outward flange dish；The sealing ring of lip it is provided with on described valve port, its closed-loop of the valve disc being arranged in valve body is corresponding with the lip of sealing ring, the valve rod of valve disc side through electric magnet and is threadeded with the handwheel being arranged on outside valve body, the spring one end being sleeved on valve rod withstands on valve disc, the other end withstands on the medial wall of valve body, when diaphragm pressure induction apparatus detection cabin pressure is in setting pressure, the closed-loop of valve disc is pressed to the lip of sealing ring and remains closed by spring；Diaphragm pressure induction apparatus detection cabin pressure is beyond when setting pressure, and electric magnet obtains elastic band ovable valve stem that is electric and that overcome spring and valve disc moves axially, and the lip of the closed-loop disengaging sealing ring on valve disc carries out flow and releases.
Emergent differential pressure relief valve of the present utility model is arranged on cabin wall, when diaphragm pressure induction apparatus detection cabin pressure is in setting pressure, is setting pressure such as cabin pressure at below 800Pa, the valve disc of emergent differential pressure relief valve makes closed-loop press to the lip of sealing ring and remain closed under the action of the spring, makes valve closing；When cabin pressure gradually rises, owing to diaphragm pressure induction apparatus experiences the change of cabin pressure, produce the displacement of diaphragm, when pressure is beyond when setting pressure, diaphragm pressure induction apparatus diaphragm adhesive, and electric conduction Magnet supply line, electric magnet obtains electric, valve disc overcomes elastic force to open under the effect of electric magnet, and relief valve automatically carries out flow and releases, it is ensured that pressure is in the receivable scope of human body.Emergent differential pressure safety valve structure of the present utility model is simple, and automatically senses current cabin pressure by diaphragm pressure induction apparatus, can be able to play a protective role independent of whole pressure acquisition system.Electric magnet is arranged in valve body by this utility model; and valve rod is as iron core; compact conformation; volume is little, by electric magnet, valve disc air inlet is opened and closed control, can be put in place by valve opening moment; carry out flow to release; reduce the external superpressure in current cabin, and the flow amount of releasing is relatively big, can play a protective role whole system.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
Fig. 1 this utility model is met an urgent need the structural representation of differential pressure relief valve.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the schematic diagram of the cross-section structure of Fig. 1.
Wherein: 1 diaphragm pressure induction apparatus, 1-1 inductive head, 2 valve bodies, 2-1 outward flange dish, 2-2 magnetic cavity, 2-3 pore, 2-4 inner flange, 2-5 medial wall, 3 handwheels, 4 cover plates, 5 cabin walls, 6 first sealing gaskets, 7 electric magnet, 8 valve rods, 8-1 connects seat, 9 springs, 10 second sealing gaskets, 11 valve seats, 11-1 valve port, 12 filter screens, 13 valve discs, 13-1 closed-loop, 14 sealing rings, 14-1 lip.
Detailed description of the invention
As shown in Fig. 1～3, emergent differential pressure relief valve of the present utility model, including valve body 2, valve disc 13, valve rod 8 and for sensing the diaphragm pressure induction apparatus 1 of cabin pressure and for controlling the electric magnet 7 that valve rod 8 moves axially.
As shown in Fig. 1～3, this utility model valve body 2 is positioned at ring flange side and is provided with valve port 11-1, opposite side is provided with the magnetic cavity 2-2 for installing electric magnet 7, and valve body 2 is positioned at the valve wall of valve disc 13 side and is provided with and the outside pore 2-3 communicated, the electric magnet 7 being arranged in magnetic cavity 2-2 is connected with supply line, valve rod 8 passes electric magnet 7 as ferrum core, when power supply circuits turn on, power to electric magnet 7, valve rod 8 is made to drive valve disc 13 to move axially with generation magnetic force, by the pore 2-3 on valve wall, the pressure in cabin is carried out flow through valve release, ensure that pressure is in the receivable scope of human body.
As shown in Fig. 1～3, the inductive head 1-1 of this utility model diaphragm pressure induction apparatus 1 is arranged at the sensing hole on valve body 2 outward flange dish 2-1, and the outward flange dish 2-1 of valve body 2 is provided with multiple installing hole, by securing member, valve body 2 is arranged on cabin wall 5, and the opening part of the outward flange dish 2-1 of valve body 2 and cabin wall 5 is sealed by the first sealing gasket 6, this diaphragm pressure induction apparatus 1 is arranged on the outside of valve body 2, and its inductive head 1-1 is communicated through the installing hole on outward flange dish 2-1 with cabin pressure, detect the room pressure change of current cabin with this.This utility model diaphragm pressure induction apparatus 1 can use commercially available prod, the pressure reduction between current cabin and atmospheric pressure can be sensed by internal diaphragm, gradually rise in cabin pressure, experience the change of cabin pressure, and produce the displacement of diaphragm, when exceeding setting pressure, the diaphragm adhesive of diaphragm pressure induction apparatus 1 and send signal, electric conduction Magnet 7 supply line, electric magnet 7 obtains electric and produces magnetic force.This utility model relief valve uses independent pressure acquisition system and can automatically sense current cabin superpressure, can play a protective role whole system well.
Such as Fig. 2, shown in 3, the sealing ring 14 of lip 14-1 it is provided with on this utility model valve port 11-1, its closed-loop 13-1 of valve disc 13 being arranged in valve body 2 is corresponding with lip 14-1 of sealing ring 14, in pressure is in normal range, this utility model can be using the pressure interval less than 800Pa as setting pressure, now this valve disc 13 is pressed in lip 14-1 on sealing ring 14, and arranged at safety valve is in closure state；But diaphragm pressure induction apparatus 1 detects when cabin room pressure is beyond when setting pressure, as during more than 800Pa, the diaphragm of diaphragm pressure induction apparatus 1 touches and closes, the power supply circuits conducting of electric magnet 7, moment makes closed-loop 13-1 on valve disc 13 depart from lip 14-1 of sealing ring 14 and open valve disc 13 and carry out flow and release, controlling because using electric magnet 7 to open and close valve disc 13 air inlet, can be put in place by valve opening moment, the flow amount of releasing is bigger.
As shown in Fig. 1～3, the valve rod 8 of this utility model valve disc 13 side through electric magnet 7 and is threadeded with the handwheel 3 being arranged on outside valve body 2, valve rod 8 one end is provided with connection seat 8-1, connect seat 8-1 by being securedly mounted on valve disc 13, spring 9 one end being sleeved on valve rod 8 withstands on valve disc 13, the other end withstands on the medial wall 2-5 of valve body 2, this connection seat 8-1 is provided with spring base, and the medial wall 2-5 of this valve body 2 also is provided with spring base, makes the steady stress of spring 9.As shown in Figure 2, magnetic cavity 2-2 side on this utility model valve body 2 is provided with cover plate 4, cover plate 4 is provided with valve rod hole, valve rod 8 is connected through valve rod hole with handwheel 3, and handwheel 3 is screwed on valve rod 8 and withstands on cover plate 4, in the absence of a power supply, carry out pressure also by manual operation handwheel 3 to release.
As shown in Figure 3, diaphragm pressure induction apparatus 1 detect cabin pressure be in setting pressure time, at spring 9, closed-loop 13-1 of valve disc 13 is pressed to lip 14-1 of sealing ring 14 and remains closed, valve closing, now electric magnet 7 dead electricity.When diaphragm pressure induction apparatus 1 detects cabin pressure beyond setting pressure, electric magnet 7 obtains electric and overcomes the elastic band ovable valve stem 8 of spring 9 and valve disc 13 to move axially, and lip 14-1 of the closed-loop 13-1 disengaging sealing ring 14 on valve disc 13 carries out flow and releases.
As shown in Figure 3, valve seat 11 is installed on this utility model valve body 2, this valve seat 11 is formed integrally with valve body 2, bulge loop on valve seat 11 forms valve port 11-1, sealing ring 14 is sleeved on bulge loop, sealing ring 14 is reliably arranged on valve port 11-1, and valve seat 11 is connected with the inner flange 2-4 of valve body 2 by securing member, the second sealing gasket 10 it is provided with between valve seat 11 and inner flange 2-4, therefore according to the flow amount of releasing, different valve seats 11 can be installed, having preferable versatility, this utility model installs drainage screen 12 on valve seat 11, to prevent outside foreign material from entering in cabin.
Claims (4)
1. an emergent differential pressure relief valve, it is characterised in that: include valve body (2), valve disc (13), valve rod (8) and be used for sensing the diaphragm pressure induction apparatus (1) of cabin pressure and being used for controlling the electric magnet (7) that valve rod (8) moves axially；Described valve body (2) is positioned at that outward flange dish (2-1) side is provided with valve port (11-1), opposite side is provided with the magnetic cavity (2-2) for installing electric magnet (7), and valve body (2) is positioned at the valve wall of valve disc (13) side and is provided with and the outside pore (2-3) communicated, the electric magnet (7) being arranged in magnetic cavity (2-2) is connected with supply line, and the inductive head (1-1) of diaphragm pressure induction apparatus (1) is arranged at the sensing hole on valve body (2) outward flange dish (2-1)；The sealing ring (14) of lip (14-1) it is provided with on described valve port (11-1), valve disc (13) its closed-loop (13-1) being arranged in valve body (2) is corresponding with the lip of sealing ring (14) (14-1), the valve rod (8) of valve disc (13) side is threadeded through electric magnet (7) the handwheel (3) outside with being arranged on valve body (2), spring (9) one end being sleeved on valve rod (8) withstands on valve disc (13), the other end withstands on the medial wall (2-5) of valve body (2), when diaphragm pressure induction apparatus (1) detection cabin pressure is in setting pressure, the closed-loop (13-1) of valve disc (13) is pressed to the lip (14-1) of sealing ring (14) and remains closed by spring (9)；Diaphragm pressure induction apparatus (1) detection cabin pressure is beyond when setting pressure, electric magnet (7) obtains electric and overcomes the elastic band ovable valve stem (8) of spring (9) and valve disc (13) to move axially, and the lip (14-1) of the closed-loop (13-1) disengaging sealing ring (14) on valve disc (13) carries out flow and releases.
Emergent differential pressure relief valve the most according to claim 1, it is characterized in that: valve seat (11) is installed on described valve body (2), bulge loop on valve seat (11) forms valve port (11-1), sealing ring (14) is sleeved on bulge loop, valve seat (11) is connected with the inner flange (2-4) of valve body (2) by securing member, it is provided with between valve seat (11) and inner flange (2-4) on the second sealing gasket (10), and valve seat (11) and drainage screen (12) is installed.
Emergent differential pressure relief valve the most according to claim 1, it is characterized in that: described valve rod (8) one end is provided with connection seat (8-1), connection seat (8-1), by being securedly mounted on valve disc (13), connects seat (8-1) and is provided with spring base.
Emergent differential pressure relief valve the most according to claim 1, it is characterized in that: magnetic cavity (2-2) side on described valve body (2) is provided with cover plate (4), cover plate (4) is provided with valve rod hole, and handwheel (3) is screwed in valve rod (8) and above and withstands on cover plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226911.0U CN205446839U (en) | 2016-03-22 | 2016-03-22 | Relief valve is pressed to emergent elementary errors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226911.0U CN205446839U (en) | 2016-03-22 | 2016-03-22 | Relief valve is pressed to emergent elementary errors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446839U true CN205446839U (en) | 2016-08-10 |
Family
ID=56574734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620226911.0U Active CN205446839U (en) | 2016-03-22 | 2016-03-22 | Relief valve is pressed to emergent elementary errors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185515A (en) * | 2018-10-26 | 2019-01-11 | 沈阳明远电气科技有限公司 | pressure relief valve |
-
2016
- 2016-03-22 CN CN201620226911.0U patent/CN205446839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185515A (en) * | 2018-10-26 | 2019-01-11 | 沈阳明远电气科技有限公司 | pressure relief valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |