CN206860979U - It is a kind of to open and close explosion-proof decompression device certainly - Google Patents
It is a kind of to open and close explosion-proof decompression device certainly Download PDFInfo
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- CN206860979U CN206860979U CN201720702490.9U CN201720702490U CN206860979U CN 206860979 U CN206860979 U CN 206860979U CN 201720702490 U CN201720702490 U CN 201720702490U CN 206860979 U CN206860979 U CN 206860979U
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- guide rod
- bonnet
- support
- upper flange
- flange plate
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Abstract
It is a kind of to open and close explosion-proof decompression device certainly, the upper flange plate top of flange sets bonnet, bonnet is pressed on the sealing surface of upper flange plate, uniform vertically-guided bar is set on upper flange plate, the edge of bonnet guide plate corresponding with guide rod respectively, guide rod both passes through the hole on corresponding guide plate, the centre bit of bonnet installs vertical middle guide rod, buffer spring is socketed on middle guide rod, the top of middle guide rod passes through the support fixed respectively with each guide rod top, the varying diameter portion of middle guide rod is located at the top of support, magnetic suction disc is set in the middle part of support, the top of middle guide rod still passes through the magnetic suction disc, the top of middle guide rod sets upper sucker corresponding with magnetic suction disc, also include regulation component and seal assembly.The utility model compared with prior art there is pretightning force to be easy to adjust, the advantages that the good sealing effect of bonnet.
Description
Technical field the utility model is related to a kind of pipe safety protector, more particularly to a kind of explosion-protection equipment.
Background technology causes equipment to damage in for systems such as generating, chemical industry, oil, heat supplies to prevent inflammable medium from firing
Bad and fire, need to need to add explosion proof door on pulverized coal preparation system pipeline or flue, existing explosion proof door be from open-close type explosion proof door, its
Primary structure is：The upper flange plate top of flange sets bonnet, and bonnet is pressed on the sealing surface of upper flange plate, on upper flange plate
If uniform vertically-guided bar, guide plate corresponding with guide rod, guide rod both pass through corresponding lead respectively at the edge of bonnet
To the hole on plate, the centre bit of the bonnet installs vertical middle guide rod, is socketed buffer spring on the middle guide rod, centre is led
The top of bar is located at the top of support, support through the support fixed respectively with each guide rod top, the varying diameter portion of middle guide rod
Middle part set magnetic suction disc, the top of middle guide rod still passes through the magnetic suction disc, and the top of middle guide rod is set and magnetic suction disc pair
The upper sucker answered.The explosion proof door of this structure is led using adjustable magneticaction and centre between magnetic suction disc and upper sucker
The spring-force driven dual of bar, buffer spring etc., the automatic open close of bonnet is realized, complete venting of dust explosion.It is existing to be deposited from open-close type explosion proof door
In following deficiency：1st, the pretightning force regulation of its bonnet is controlled by the magnetite of magnetic suction disc and the spacing of upper sucker, due to bonnet
Seal pressure be venting of dust explosion key factor, existing regulative mode scope is small, difficulty is big, and reliability is low；2nd, its bonnet with it is upper
The main seal form for using silica gel strip, graphite or metallic copper between ring flange, silica gel strip good airproof performance, but by hot environment
Influence, silica gel strip is easy to aging, installs the good sealing effect at initial stage, and the phenomenon for the powder that leaks out, leaks occurs after the time is longer；Graphite pads
The resistance to temp effect of piece sealing is good, but loose phenomenon easily occurs in sealing surface, the tightness of sealing surface is not reached requirement；Metallic copper
Although the resistance to gentle tightness of sealing is preferable, because its requirement on machining accuracy is higher, during real work, the particle such as dust is easily right
Sealing surface causes to damage, and influences sealing effectiveness, in addition, the cost of metallic copper is higher.
Content of the invention the purpose of this utility model is that providing a kind of pretightning force of not only bonnet is easy to adjust, Er Qiefa
The good sealing effect of lid opens and closes explosion-proof decompression device certainly.
The utility model is mainly the improvement on the basis of the existing explosion proof door from open-close type, and concrete technical scheme is as follows：
The utility model mainly include flange, bonnet, guide rod, middle guide rod, support, magnetic suction disc and on
Sucker, the upper flange plate top of flange set bonnet, and bonnet is pressed on the sealing surface of upper flange plate, are set on upper flange plate uniform
Vertically-guided bar, guide plate corresponding with guide rod, guide rod are both passed through on corresponding guide plate respectively at the edge of bonnet
Hole, the centre bit of the bonnet installs vertical middle guide rod, buffer spring, the top of middle guide rod is socketed on the middle guide rod
Hold through the support fixed respectively with each guide rod top, the varying diameter portion of middle guide rod and be located at the top of support, the middle part of support
If magnetic suction disc, the top of middle guide rod still passes through the magnetic suction disc, and the top of middle guide rod is set on corresponding with magnetic suction disc
Sucker；The utility model also includes regulation component and seal assembly, wherein at least one group of regulation component, every group of regulation component
By pedestal, support tube, hold out against pressure head, spring and adjusting screw rod and form, wherein pedestal is arranged on support, is had on pedestal
There is an oblique support tube, the spring extended along its length is set in the support tube, one end connection of spring holds out against pressure head, should
One end and the spring interface of pressure head are held out against, the other end stretches out support tube and the varying diameter portion of above-mentioned middle guide rod connects, the spring
Other end connection adjusting screw rod, the opening of the adjusting screw rod and support tube is connected through a screw thread, one end of adjusting screw rod with
Spring interface, the other end stretch out support tube；The seal assembly is made up of projection and pad, wherein projection in a ring, its
Lateral cross section is serrated, and projection is arranged on the lower edge position of bonnet, and the upper flange plate corresponds to above-mentioned projection position and set
The slotted eye of annular, the pad of annular is set in slotted eye, the lower end of the projection is in contact with the upper end of pad.
Preferably, the regulation component has three groups, and this three groups of spring regulation components are distributed on around middle guide rod.
Preferably, the pad is silicic acid aluminium backing.
As a preferred scheme of the present utility model, the utility model also includes leading truck and guide pad, wherein leading
To at least 3, frame, they are vertically set on the outward flange position of upper flange plate, and the cross section of leading truck is in door shape, and it is opened
Mouthful end is towards the center of bonnet；The outward flange end of the bonnet set respectively with the one-to-one guide pad of leading truck, lead
In T shape to the cross section of block, the outer end of each guide pad stretches in corresponding leading truck respectively, to realize its energy
Enough vertically moving along leading truck.
As another preferred scheme of the present utility model, fire-retardant cover is set between the support and upper flange plate, the back-fire relief
The barrel-type casing for covering to be open up and down, thereon edge of opening connect with support, under shed edge connects with upper flange plate, makes branch
Side between frame and upper flange plate forms enclosed area.
Work of the present utility model is still using magneticaction between magnetic suction disc and upper sucker and middle guide rod, delayed
The spring-force driven dual of spring etc. is rushed, realizes the automatic open close of bonnet, completes venting of dust explosion.During real work, hold out against during pressure head acts on
Between guide rod reduced diameter portion, provide downward power to middle guide rod, act on bonnet, form the pretightning force of valve bonnet seal, can lead to
Overregulate screw rod and realize adjustment to holding out against ram pressures, to realize the adjustment to bonnet pretightning force；Adopt in valve bonnet seal face region
Sawtooth line contact is taken, deformation of this seal form to horizontal direction has very big adaptability, can effectively prevent from sealing
High temperature deformation in the range of facial plane；During venting of dust explosion, while bonnet opens and closes, guide pad and leading truck play the work for being oriented to and resetting
With；The range of scatter of flame when fire-retardant cover can effectively control detonation, ensure equipment or the safety of personnel to greatest extent.
The utility model has the following advantages that compared with prior art：
1st, the accurate adjustment of bonnet pretightning force can be realized, adjustable range is big, and regulation difficulty is low, can ensure that pretension is adjusted
Reliability and service life；
2nd, valve bonnet seal position is not in the phenomenon of powder of leaking out, leak, and sealing surface is not reliable, loose, and tightness is high；
3rd, bonnet guiding resistance is small, is not in bite phenomenon, ensures to be oriented to the accuracy of position.
4th, it is safe and reliable, ensure the security of operating personnel.
Illustrate the regulation component schematic diagram that Fig. 1 is the utility model embodiment 1.
Fig. 2 is the main view diagrammatic cross-section of the utility model embodiment 1.
Fig. 3 is Fig. 2 A portions enlarged drawing.
Fig. 4 is the top cross-sectional view of the utility model embodiment 2.
Next embodiment just elaborates with reference to accompanying drawing to the utility model
Embodiment 1 is a kind of from keying explosion-proof decompression device：
As shown in figure 1, regulation component by pedestal, support tube, hold out against pressure head, spring and adjusting screw rod and form, its
Middle pedestal 10-1 is arranged on support 7, is had an oblique support tube 10-3 on pedestal, is set along its length in the support tube
The spring 10-2 of extension, one end connection of spring hold out against pressure head 10-4, and this holds out against one end of pressure head and spring interface, and the other end is stretched
The varying diameter portion 501 for going out support tube and above-mentioned middle guide rod 5 connects, the other end connection adjusting screw rod 10-5 of the spring, the tune
It is connected through a screw thread at the opening 10-6 of section screw rod and support tube, one end of adjusting screw rod and spring interface, the other end stretch out branch
Support cylinder.
As shown in Figures 2 and 3, the top of upper flange plate 1 of flange sets bonnet 2, and bonnet is pressed in the sealing of upper flange plate
Set uniform vertically-guided bar 3 on face, on upper flange plate, the edge of bonnet guide plate 4 corresponding with guide rod respectively, guide rod
The hole on corresponding guide plate is both passed through, the centre bit of the bonnet installs vertical middle guide rod 5, covered on the middle guide rod
Buffer spring 6 is connect, the top of middle guide rod passes through the support 7 fixed respectively with each guide rod top, the varying diameter portion of middle guide rod
501 are located at the top of support, set magnetic suction disc 8 in the middle part of support, the top of middle guide rod still passes through the magnetic suction disc, and centre is led
The top of bar sets upper sucker 9 corresponding with magnetic suction disc, sets three groups of regulation components 10 on the support, this three groups of spring pressure regulation groups
Part is distributed on around middle guide rod, and the lower edge of the bonnet sets the projection 11 of annular, and the lateral cross section of projection is in sawtooth
Shape, upper flange plate correspond to the slotted eye 12 that above-mentioned projection position sets annular, and the silicic acid aluminium backing 13 of annular, the projection are set in slotted eye
Lower end be in contact with the upper end of pad, set fire-retardant cover 14 between the support and upper flange plate, the fire-retardant cover is opens up and down
Mouthful barrel-type casing, thereon edge of opening connect with support, under shed edge connects with upper flange plate, makes support and upper flange plate
Between side formed enclosed area.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is also to include leading truck and guide pad, as shown in figure 4,
Leading truck 15 has 3, and they are vertically set on the outward flange position of upper flange plate 1, and the cross section of leading truck is in door shape, and it is opened
Mouth end sets guide pad 16 one-to-one with leading truck, guide pad respectively towards the center of valve 2, the outward flange end of bonnet
Cross section it is in T shape, the outer end of each guide pad stretches in corresponding leading truck respectively, to realize that it being capable of edge
Leading truck vertically moves.
Claims (5)
- It is 1. a kind of from keying explosion-proof decompression device, including flange, bonnet, guide rod, middle guide rod, support, magnetic suction disc And upper sucker, the upper flange plate top of flange set bonnet, bonnet is pressed on the sealing surface of upper flange plate, on upper flange plate If uniform vertically-guided bar, guide plate corresponding with guide rod, guide rod both pass through corresponding lead respectively at the edge of bonnet To the hole on plate, the centre bit of the bonnet installs vertical middle guide rod, is socketed buffer spring on the middle guide rod, centre is led The top of bar is located at the top of support, support through the support fixed respectively with each guide rod top, the varying diameter portion of middle guide rod Middle part set magnetic suction disc, the top of middle guide rod still passes through the magnetic suction disc, and the top of middle guide rod is set and magnetic suction disc pair The upper sucker answered；It is characterized in that：Also include regulation component and seal assembly, wherein at least one group of regulation component, every group of tune Pressure component by pedestal, support tube, hold out against pressure head, spring and adjusting screw rod and form, wherein pedestal is arranged on support, base There is an oblique support tube on seat, the spring extended along its length is set in the support tube, one end connection of spring is held out against Pressure head, this holds out against one end of pressure head and spring interface, and the other end stretches out support tube and the varying diameter portion of above-mentioned middle guide rod connects, institute The other end connection adjusting screw rod of spring is stated, the opening of the adjusting screw rod and support tube is connected through a screw thread, adjusting screw rod One end and spring interface, the other end stretch out support tube；The seal assembly is made up of projection and pad, and wherein projection is in ring Shape, its lateral cross section are serrated, and projection is arranged on the lower edge position of bonnet, and the upper flange plate corresponds to above-mentioned projection position The slotted eye of annular is installed, the pad of annular is set in slotted eye, the lower end of the projection is in contact with the upper end of pad.
- 2. it is according to claim 1 from keying explosion-proof decompression device, it is characterized in that：The regulation component has three groups, and this three Group spring regulation component is distributed on around middle guide rod.
- 3. it is according to claim 1 or 2 from keying explosion-proof decompression device, it is characterized in that：The pad is silicic acid aluminium backing.
- 4. it is according to claim 1 from keying explosion-proof decompression device, it is characterized in that：Also include leading truck and guide pad, Wherein leading truck at least 3, they are vertically set on the outward flange position of upper flange plate, and the cross section of leading truck is in door word Shape, its openend is towards the center of bonnet；The outward flange end of the bonnet is set respectively leads correspondingly with leading truck To block, the cross section of guide pad is in T shape, and the outer end of each guide pad stretches in corresponding leading truck respectively, with Realize that it being capable of vertically moving along leading truck.
- 5. explosion-proof decompression device is opened and closed certainly according to claim 1 or 4, it is characterized in that：The support and upper flange plate it Between set fire-retardant cover, the fire-retardant cover is the barrel-type casing that is open up and down, and edge of opening connects with support thereon, under shed edge and Upper flange plate connects, and the side between support and upper flange plate is formed enclosed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702490.9U CN206860979U (en) | 2017-06-16 | 2017-06-16 | It is a kind of to open and close explosion-proof decompression device certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702490.9U CN206860979U (en) | 2017-06-16 | 2017-06-16 | It is a kind of to open and close explosion-proof decompression device certainly |
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| CN206860979U true CN206860979U (en) | 2018-01-09 |
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| CN201720702490.9U Active CN206860979U (en) | 2017-06-16 | 2017-06-16 | It is a kind of to open and close explosion-proof decompression device certainly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345586A (en) * | 2017-06-16 | 2017-11-14 | 锐驰恩科技（大连）有限公司 | It is a kind of to open and close explosion-proof decompression device certainly |
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2017
- 2017-06-16 CN CN201720702490.9U patent/CN206860979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345586A (en) * | 2017-06-16 | 2017-11-14 | 锐驰恩科技（大连）有限公司 | It is a kind of to open and close explosion-proof decompression device certainly |
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