CN2769639Y - Flame resisting plastic hydraulic safety valve - Google Patents
Flame resisting plastic hydraulic safety valve Download PDFInfo
- Publication number
- CN2769639Y CN2769639Y CN 200420108324 CN200420108324U CN2769639Y CN 2769639 Y CN2769639 Y CN 2769639Y CN 200420108324 CN200420108324 CN 200420108324 CN 200420108324 U CN200420108324 U CN 200420108324U CN 2769639 Y CN2769639 Y CN 2769639Y
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- drum
- oil tank
- valve cover
- 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
Links
Abstract
The utility model relates to a flame resisting plastic hydraulic safety valve which is arranged at the top of an oil tank, and each component of the valve is made of flame retardant plastic. A flange is arranged at the lower end of a cylindrical central tube which is arranged in an oil seal drum. The upper end of the oil seal drum is provided with an oil sump on which a valve cover bracket is arranged. The valve cover bracket supports a valve cover whose inside is provided with a separating drum, wherein the upper end of the separating drum is in continuous approach grafting with the valve cover, and the lower end is sheathed between the central tube and the oil seal drum. Additionally, the valve cover is provided with an oil level ruler. The valve is arranged at the top opening of the oil tank through the flange, and non-congealable and nonvolatile oil is filled between the central tube and the oil seal drum to form a liquid seal to the oil tank, lessen the evaporation loss of oil in the oil tank and prevent outside flame from incoming. When the pressure in the oil tank changes, breathing through a liquid seal channel can realize ventilation and pressure stabilization. The valve has the advantages of simple structure, light flame-proof body, convenient loading and unloading in transportation, low cost, no spark, high safety, no maintenance and long service life.
Description
(1) technical field: the utility model is a kind of flame retardant plastic deadweight safety valve that is contained in the oil tank top.
(2) background technique:, deadweight safety valve must be housed on the oil tank be used with the fire prevention inhalation valve at cold area.When the fire prevention inhalation valve freezes when malfunctioning because of corrosion or cold, oil tank carries out " breathings " safety effect by deadweight safety valve.Deadweight safety valve in the past all is made of metal, and complex structure, body weight transportation loading and unloading be inconvenience all, easily gets rusty and must often safeguard, brings a lot of troubles to the user.
(3) summary of the invention: the purpose of this utility model provides a kind of flame retardant plastic deadweight safety valve, overcoming existing deadweight safety valve is made of metal, complex structure, the inconvenience of body weight transportation loading and unloading, easily get rusty technical problems such as maintenance often, its technical solution is: each parts of whole safety valve all select for use flame retardant plastic to make, columnar center tube lower end is provided with flange, and the oil sealing tube is equipped with in the center tube outside, and oil sealing tube upper end is provided with oil trap, the valve bonnet support is housed on the oil trap, valve bonnet support upper support valve bonnet, and separating tube is housed in the valve bonnet, and amplexiform continuously with valve bonnet the separating tube upper end, the bottom is enclosed between center tube and the oil sealing tube, and oil level gauge also is housed on the valve bonnet.Working principle: the utility model is contained in the oil tank top open part by flange.Between center tube and oil sealing tube, be equipped with do not freeze, nonvolatile petroleum products (as the transformer wet goods), with this oil tank is formed fluid-tight, can reduce jar interior oil product evaporating loss and stop extraneous flame to import into.When the oil tank internal pressure changes, can carry out " breathing " by the fluid-tight passage of center tube and separating tube and separating tube and the formation of oil sealing tube, to reach ventilation voltage stabilizing purpose.Valve bonnet can prevent that the dust storm rainwater enters, and oil trap is with the collection of fluid-tight oil ejection when oil tank is exhaled.Oil level gauge is used for detecting fluid-tight fuel head.
Owing to take above-mentioned technical solution, the beneficial effects of the utility model to be that fire-retardant body is light, simple in structure, transportation loading and unloading is convenient, and fabricating cost is low, does not strike sparks, and is safe; Not corrosion does not need antirust processing and maintenance, long service life.
(4) description of drawings: Fig. 1 is a structural representation of the present utility model.
(5) embodiment:, elaborate a preferred embodiment of the present utility model again below in conjunction with accompanying drawing.Referring to Fig. 1 as can be known, the utility model selects for use flame retardant plastic to make, center tube 2 lower ends are provided with flange 1, and center tube 2 outsides have been amplexiformed oil sealing tube 3 continuously, and oil sealing tube 3 upper ends are provided with oil trap 5, three valve bonnet supports 4 are housed on the oil trap 5, valve bonnet support 4 upper supports valve bonnet 6, and separating tube 7 is housed in the valve bonnet 6, and separating tube 7 upper ends and valve bonnet 6 amplexiform continuously, the bottom is enclosed between center tube 2 and the oil sealing tube 3, and oil level gauge 8 also is housed on the valve bonnet 6.
Claims (1)
1, a kind of each parts of flame retardant plastic deadweight safety valve select for use flame retardant plastic to make, it is characterized in that cylindrical shape center tube (2) lower end is provided with flange (1), oil sealing tube (3) is equipped with in center tube (2) outside, oil sealing tube (3) upper end is provided with oil trap (5), valve bonnet support (4) is housed on the oil trap (5), valve bonnet support (4) upper support valve bonnet (6), separating tube (7) is housed in the valve bonnet (6), amplexiform continuously with valve bonnet (6) separating tube (7) upper end, the bottom is enclosed between center tube (2) and the oil sealing tube (3), and oil level gauge (8) also is housed on the valve bonnet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108324 CN2769639Y (en) | 2004-10-12 | 2004-10-12 | Flame resisting plastic hydraulic safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108324 CN2769639Y (en) | 2004-10-12 | 2004-10-12 | Flame resisting plastic hydraulic safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769639Y true CN2769639Y (en) | 2006-04-05 |
Family
ID=36690722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108324 Expired - Fee Related CN2769639Y (en) | 2004-10-12 | 2004-10-12 | Flame resisting plastic hydraulic safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769639Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674753A (en) * | 2020-06-25 | 2020-09-18 | 宁满帅 | Oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device |
| CN113120451A (en) * | 2021-04-06 | 2021-07-16 | 辽宁石油化工大学 | Liquid sealing pressure relief manhole |
-
2004
- 2004-10-12 CN CN 200420108324 patent/CN2769639Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674753A (en) * | 2020-06-25 | 2020-09-18 | 宁满帅 | Oil storage tank liquid seal mechanical seal double-seal integrated environment-friendly breathing device |
| CN113120451A (en) * | 2021-04-06 | 2021-07-16 | 辽宁石油化工大学 | Liquid sealing pressure relief manhole |
| CN113120451B (en) * | 2021-04-06 | 2022-05-27 | 辽宁石油化工大学 | Liquid sealing pressure relief manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |