CN202927175U - Breather valve for chemical storage tank - Google Patents
Breather valve for chemical storage tank Download PDFInfo
- Publication number
- CN202927175U CN202927175U CN 201220736817 CN201220736817U CN202927175U CN 202927175 U CN202927175 U CN 202927175U CN 201220736817 CN201220736817 CN 201220736817 CN 201220736817 U CN201220736817 U CN 201220736817U CN 202927175 U CN202927175 U CN 202927175U
- Authority
- CN
- China
- Prior art keywords
- breath
- storage tank
- ball float
- segment
- chemical storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a breather valve for a chemical storage tank, and the breather valve for the chemical storage tank comprises a breath channel with two connected ends, two ends of the breath channel are both breath ports, a middle part of the breath channel is provided with a third breath port, the third breath port is provided with a breath tube, and the breath tube is connected with the storage tank; a upper and a lower ends of the breath channel are both provided with breath cavities, a ball float and a breath barrel are arranged in the breath cavity, the ball float is connected with the breath barrel in a sliding manner, the breath barrel has a variable diameter and is formed by a sliding segment and a breath segment, the sliding segment and the breath segment are bridged by a shoulder, the sliding segment is fixed on a bottom of the breath cavity, the breath segment is arranged on an inner wall of the breath channel, and the breath segment and the sliding segment are both provided with breath holes. The breather valve for the chemical storage tank has strong anticorrosion capability and good safety performance.
Description
Technical field
The utility model relates to the valve that generally uses on normal pressure or low pressure tank in petroleum and petrochemical industry, what be specifically related to is the inhalation valve that uses on chemical storage tank.
Background technique
Inhalation valve is to safeguard the storage tank air pressure balance, reduces the energy-saving safe product of medium volatilization, and the bearing capacity that inhalation valve takes full advantage of storage tank itself reduces media discharge, and its principle is to utilize the weight of positive/negative-pressure valve disc to control exhaust malleation and the intake negative-pressure of storage tank.When within the control operation pressure range of pressure at inhalation valve of medium in tank, inhalation valve is not worked, and keeps the seal of oil tank; When replenish medium in tank, the pressure of the tank internal upper part gas space is raise, when reaching the operation malleation of inhalation valve, pressure valve is backed down, and gas is overflowed from the inhalation valve expiratory port, and the tank internal pressure is not increased continuing; When extract medium out outside tank; make the pressure drop of the tank internal upper part gas space; when reaching the operation negative pressure of inhalation valve; the negative pressure valve disc that the outer atmosphere of tank will back down inhalation valve backs down; ambient atmos is entered in tank; make the pressure in tank no longer continue to descend, allow in tank and the outer air pressure balance of tank, protect the safety installations of storage tank.Existing inhalation valve is that valve inner has spring structure mostly, and its material mostly is cast iron, cast steel, stainless steel, aluminum alloy, and the volatile substance such as hydrochloric acid, nitric acid can cause corrosion to this valve, have affected the working life of this valve.
Summary of the invention
The purpose of this utility model is to provide the inhalation valve that uses on chemical storage tank, and the inhalation valve that uses on this chemical storage tank is used for solving the problem that existing inhalation valve can be subject to acid etching.
The technological scheme that its technical problem that solves the utility model adopts is: the inhalation valve that uses on this chemical storage tank comprises the respiratory tract that a two communicates, the two ends of respiratory tract are pneumostome, the middle part of respiratory tract is provided with the 3rd pneumostome, the 3rd pneumostome place's installation respirating tube, respirating tube communicates with storage tank; The upper/lower terminal of respiratory tract all arranges respiratory cavity, ball float is arranged in respiratory cavity and breathe cylinder, ball float and breathing cylinder are slidably connected, breathing cylinder is reducing, be made of glissile segment and breathing section, between glissile segment and breathing section, by the shoulder transition, glissile segment is fixed on the bottom of respiratory cavity, breathe section and be arranged on the inwall of respiratory tract, breathing section and glissile segment all has spiracle.
In such scheme, ball float is oval-shaped spheroid, and the outside of ball float is with slide blocks, and slide blocks is positioned at the middle part of ball float, and the glissile segment inwall of breathing cylinder has chute, and slide blocks is positioned at chute, and ball float is slidably connected by chute and slide blocks with the glissile segment of breathing cylinder.
In such scheme, respirating tube is bend pipe, and respirating tube is communicated with storage tank by flange.
In such scheme, the material of inhalation valve is PP spare, and the material of ball float is PVC spare.
The utlity model has following beneficial effect:
The utility model manufacturing is simple, and anti-corrosion capability is strong, and Safety performance is good, has solved all positive/negative-pressure problems of strong chemical substance storage tank of some special volatility and corrosivity.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of ball float in the utility model;
Fig. 3 breathes the structural representation of cylinder in the utility model.
1 respiratory tract 2 pneumostome 3 respirating tube 4 respiratory cavity 5 ball floats 6 are breathed cylinder 7 glissile segments 8 and are breathed section 9 spiracle 10 slide blocks 11 chute 12 flanges.
Embodiment
As shown in Figure 1, the inhalation valve that uses on this chemical storage tank comprises the respiratory tract that a two communicates, the two ends of respiratory tract 1 are pneumostome 2, the middle part of respiratory tract 1 is provided with the 3rd pneumostome, the 3rd pneumostome place's installation respirating tube 3, respirating tube 3 is bend pipe, and respirating tube 3 is communicated with storage tank by flange 12.The upper/lower terminal of respiratory tract 1 all arranges respiratory cavity 4, ball float 5 is arranged in respiratory cavity 4 and breathe cylinder 6, ball float 5 and breathing cylinder 6 are slidably connected, breathing cylinder 6 is reducings, be made of glissile segment 7 and breathing section 8, between glissile segment 7 and breathing section 8, by the shoulder transition, glissile segment 7 is fixed on the bottom of respiratory cavity 4, breathe section 8 and be arranged on the inwall of respiratory tract 1, breathing section 8 and glissile segment 7 all has spiracle 9.
In conjunction with shown in Figure 2, ball float 5 is oval-shaped spheroid, the outside of ball float 5 is with slide blocks 10, slide blocks 10 is positioned at the middle part of ball float 5, consult Fig. 3, glissile segment 7 inwalls of breathing cylinder 6 have chute 11, and slide blocks 10 is positioned at chute 11, and ball float 5 is slidably connected by chute 11 and slide blocks 10 with the glissile segment 7 of breathing cylinder.When ball float 5 is stuck on the respiratory tract 1 that joins with respiratory cavity 4 by deadweight, respiratory tract 1 is shut.
This inhalation valve is fixed on the top of storage tank by flange 12, and communicates with storage tank, and the material of inhalation valve is PP spare, and the material of ball float 5 is PVC spare.
When storage tank needs when filling with substance, air in storage tank arrives respiratory tract 1 through respirating tube 3, back down respiratory tract 1 top respiratory cavity inner float ball 5, air is through breathing the spiracle 9 and the spiracle 9 of breathing on section 8 on cylinder glissile segment 7, discharge from top pneumostome 2, communicate with atmosphere, this moment, storage tank just can be used the pump charging; When storage tank needs blowing, the state that occurs negative pressure in storage tank, atmosphere enters through the pneumostome of respiratory tract lower end, back down the ball float in the respiratory cavity of respiratory tract lower end, make atmosphere by breathing the spiracle on a glissile segment and breathe spiracle on section, then arrive storage tank through respirating tube, storage tank is communicated with atmosphere, make and do not produce negative pressure in storage tank, just can blowing; When storage tank is in when advancing the blowing state, ball float 5 is because own wt seals, and makes that in storage tank, chemical gas can not leak, and effectively reduced the volatilization of liquid in storage tank, and is safe.
Claims (4)
1. the inhalation valve that uses on a chemical storage tank, it is characterized in that: the inhalation valve that uses on this chemical storage tank comprises the respiratory tract (1) that a two communicates, the two ends of respiratory tract (1) are pneumostome (2), the middle part of respiratory tract (1) is provided with the 3rd pneumostome, the 3rd pneumostome place's installation respirating tube (3), respirating tube (3) communicates with storage tank; respiratory tract (1) upper, lower two ends all arrange respiratory cavity (4), ball float (5) is arranged in respiratory cavity (4) and breathe cylinder (6), ball float (5) and breathing cylinder (6) are slidably connected, breathing cylinder (6) is reducing, breathe cylinder (6) by glissile segment (7) and breathe section (8) and consist of, pass through the shoulder transition between glissile segment (7) and breathing section (8), glissile segment (7) is fixed on the bottom of respiratory cavity (4), breathing section (8) is arranged on the inwall of respiratory tract (1), breathe section (8) and glissile segment (7) spiracle (9) is all arranged.
2. the inhalation valve that uses on chemical storage tank according to claim 1, it is characterized in that: described ball float (5) is oval-shaped spheroid, the outside of ball float (5) is with slide blocks (10), slide blocks (10) is positioned at the middle part of ball float (5), glissile segment (7) inwall of breathing cylinder has chute (11), slide blocks (10) is positioned at chute (11), and ball float (5) is slidably connected by chute (11) and slide blocks (10) with the glissile segment (7) of breathing cylinder.
3. the inhalation valve that uses on chemical storage tank according to claim 1 is characterized in that: described respirating tube (3) is bend pipe, and respirating tube (3) is communicated with storage tank by flange.
4. the inhalation valve that uses on chemical storage tank according to claim 1 is characterized in that: the material of described inhalation valve is PP spare, and the material of ball float (5) is PVC spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736817 CN202927175U (en) | 2012-12-05 | 2012-12-05 | Breather valve for chemical storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736817 CN202927175U (en) | 2012-12-05 | 2012-12-05 | Breather valve for chemical storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202927175U true CN202927175U (en) | 2013-05-08 |
Family
ID=48217135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736817 Expired - Fee Related CN202927175U (en) | 2012-12-05 | 2012-12-05 | Breather valve for chemical storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202927175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140020A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of contactless breather valve |
-
2012
- 2012-12-05 CN CN 201220736817 patent/CN202927175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106140020A (en) * | 2016-08-02 | 2016-11-23 | 南通白云环保工程设备有限公司 | A kind of contactless breather valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20131205 |