CN205423982U - Equilibrium pressure manhole device - Google Patents
Equilibrium pressure manhole device Download PDFInfo
- Publication number
- CN205423982U CN205423982U CN201620246463.0U CN201620246463U CN205423982U CN 205423982 U CN205423982 U CN 205423982U CN 201620246463 U CN201620246463 U CN 201620246463U CN 205423982 U CN205423982 U CN 205423982U
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- CN
- China
- Prior art keywords
- positive
- sealing ring
- preforming
- gripper shoe
- tabletting
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Abstract
The utility model provides an equilibrium pressure manhole device. The device has flange in the one end welding of barrel, the other end of barrel is equipped with backup pad even piece and backup pad, sealing ring and positive preforming are equipped with in barrel top portion, the negative pressure piece is equipped with to positive preforming lower part, O type circle is equipped with between positive preforming and the sealing ring, spring support is equipped with on positive preforming upper portion, regulation screw and spring, the guide bar is equipped with to the lower part of positive preforming, the outside cover of guide bar has stand pipe and uide bushing, and be connected with connecting piece and barrel, the welding has the lug on the closing cap, the closing cap is connected with backup pad even piece through connecting bolt for the mounting. The device through just, the lift of negative pressure piece can adjust the pressure in the storage tank, make pressure maintaining in the storage tank in the allowed band, and simple structure, dismantlement, renewal part and maintenance is very convenient.
Description
Technical field
This utility model relates to petrochemical industry auxiliary equipment field, is related specifically to a kind of balance pressure manhole device.
Background technology
In petroleum chemical enterprise, general breathing manhole, back-fire relief breathing manhole or emergency decompression manhole used are installed in oil, the top of chemical material storage tank, its effect is to ventilate in storage tank, pressure in balancing tank simultaneously, generally support the use with fire-retardant breather valve, therefore, when avoiding drastically superpressure or generation vacuum in the unexpected storage tank caused, damage storage tank and have an accident, the effect of safe back-fire relief can be played again simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of balance pressure manhole device utilizing screw press, spring, positive and negative valve block to carry out adjustment tank inner pressure.
For achieving the above object, the technical solution of the utility model is:
nullA kind of balance pressure manhole device，Including capping、Screw press、Spring、Spring fastening、Positive tabletting、O、Sealing ring、Negative pressure sheet、Adpting flange、Cylinder、Guide post、Guide pipe、Fairlead、Connecting rod、Gripper shoe、Gripper shoe connects part、Hanger and fixture，Described device is welded with adpting flange in one end of cylinder，The other end of cylinder connects part equipped with gripper shoe，Gripper shoe connects part bottom equipped with gripper shoe，Cylinder top portion is equipped with sealing ring，Sealing ring top is equipped with positive tabletting，Positive tabletting bottom is equipped with negative pressure sheet，Just equipped with O between tabletting and sealing ring，Positive tabletting top is equipped with spring fastening，Equipped with screw press in the middle part of spring fastening，Screw press outer cover is equipped with spring，The bottom of positive tabletting is equipped with guide post，Guide pipe and fairlead it is cased with outside guide post，And be connected with cylinder by connecting rod，Hanger it is welded with in capping，Capping connects part by fixture connecting bolt with gripper shoe and is connected.
Good effect of the present utility model is:
1, this device can regulate the pressure in storage tank by the lifting of positive and negative tabletting, makes the pressure in storage tank maintain in allowed band；
2, this apparatus structure is simple, dismounting, renewal part and keep in repair very convenient；
3, this device collection balance pressure and the configuration of fire-retardant breather valve disjunctor, and in capping, it is welded with hanger, to facilitate lifting to open.
Accompanying drawing explanation
Fig. 1, balance pressure manhole device's structural representation.
Detailed description of the invention
1 carries out clear, complete description to the technical solution of the utility model further below in conjunction with the accompanying drawings.
See Fig. 1, before using, be directed to overlap 13 and guide pipe 12 be sleeved on the outside of guide post 11, it is directed to bar 11 again and is contained in the bottom of positive tabletting 5, and be directed to overlap 13 by connecting rod 14 and be connected with cylinder 10, top ends at cylinder 10 installs sealing ring 7 and positive tabletting 5, O 6 is installed between positive tabletting 5 and sealing ring 7, bottom and the top of positive tabletting 5 install negative pressure sheet 8 and spring fastening 4 respectively, and be connected with the screw press 2 being set with spring 3, the hanger 18 in capping 1 is lived with electric gourd hang, and lifting is arranged on gripper shoe 15 upper support plate and connects the end of part 16, and with connecting bolt 17, the fixture 19 in welding capping 1 with gripper shoe, is connected part 16 and is connected, finally adpting flange 9 is connected with storage tank.When positive tabletting 5 and sealing ring 7 are in close contact, O 6 plays the effect of dynamic seal ring.
When storage tank internal gas pressure is too high, air pressure promotes negative pressure sheet 8, guide post 11 is made to promote positive tabletting 5 upward along fairlead 13 and guide pipe 12, positive tabletting 5 drives negative pressure sheet 8 and spring fastening 4 upwards compression spring 3, now positive tabletting 5 and sealing ring 7 disengage, and the gas in storage tank thus releases, when tank inner pressure reaches required value, it is contained in the spring 3 outside screw press 2 and discharges elastic force, spring fastening 4 and positive tabletting 5 are resetted.When storage tank internal gas pressure reduces, opening with the balance matching used fire-retardant breather valve of pressure manhole device, gas enters in storage tank, and when the pressure rising in storage tank reaches requirement, fire-retardant breather valve is closed, and stops the entrance of gas.When positive tabletting 5 and sealing ring 7 are in close contact, O 6 plays the effect of dynamic seal ring.
Above-described embodiment is only section Example of the present utility model rather than unique embodiment, those skilled in the art on the premise of not paying creative work, other embodiments obtained, belong to protection domain of the present utility model.
Claims (1)
- null1. a balance pressure manhole device，Including capping (1)、Screw press (2)、Spring (3)、Spring fastening (4)、Positive tabletting (5)、O (6)、Sealing ring (7)、Negative pressure sheet (8)、Adpting flange (9)、Cylinder (10)、Guide post (11)、Guide pipe (12)、Fairlead (13)、Connecting rod (14)、Gripper shoe (15)、Gripper shoe connects part (16)、Hanger (18) and fixture (19)，It is characterized in that: described device is welded with adpting flange (9) in one end of cylinder (10)，The other end of cylinder (10) connects part (16) equipped with gripper shoe，Gripper shoe connects part (16) bottom equipped with gripper shoe (15)，The top ends of cylinder (10) is equipped with sealing ring (7)，Sealing ring (7) top is equipped with positive tabletting (5)，The bottom of positive tabletting (5) is equipped with negative pressure sheet (8)，Just equipped with O (6) between tabletting (5) and sealing ring (7)，Positive tabletting (5) top is equipped with spring fastening (4)，Spring fastening (4) middle part is equipped with screw press (2)，Screw press (2) outer cover is equipped with spring (3)，Positive tabletting (5) bottom is equipped with guide post (11)，Guide post (11) is outside is cased with guide pipe (12) and fairlead (13)，And be connected with cylinder (10) by connecting rod (14)，It is welded with hanger (18) in capping (1)，Capping (1) connects part (16) with connecting bolt (17) with gripper shoe by fixture (19) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246463.0U CN205423982U (en) | 2016-03-29 | 2016-03-29 | Equilibrium pressure manhole device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620246463.0U CN205423982U (en) | 2016-03-29 | 2016-03-29 | Equilibrium pressure manhole device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423982U true CN205423982U (en) | 2016-08-03 |
Family
ID=56521532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620246463.0U Active CN205423982U (en) | 2016-03-29 | 2016-03-29 | Equilibrium pressure manhole device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061621A (en) * | 2020-09-09 | 2020-12-11 | 启东市恒盛仪表设备有限公司 | Comprehensive pressure relief manhole |
| CN112594427A (en) * | 2020-12-21 | 2021-04-02 | 徐州德胜石油机械有限公司 | Oil tank fire-retardant pressure valve that leakproofness is good |
-
2016
- 2016-03-29 CN CN201620246463.0U patent/CN205423982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061621A (en) * | 2020-09-09 | 2020-12-11 | 启东市恒盛仪表设备有限公司 | Comprehensive pressure relief manhole |
| CN112594427A (en) * | 2020-12-21 | 2021-04-02 | 徐州德胜石油机械有限公司 | Oil tank fire-retardant pressure valve that leakproofness is good |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |