CN202440025U - Storage tank with hydraulic seal breather valve - Google Patents
Storage tank with hydraulic seal breather valve Download PDFInfo
- Publication number
- CN202440025U CN202440025U CN2012200283539U CN201220028353U CN202440025U CN 202440025 U CN202440025 U CN 202440025U CN 2012200283539 U CN2012200283539 U CN 2012200283539U CN 201220028353 U CN201220028353 U CN 201220028353U CN 202440025 U CN202440025 U CN 202440025U
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- fluid
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- liquid
- storage tank
- breathing valve
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Abstract
The utility model relates to a storage tank. The storage tank comprises a storage tank body and a hydraulic seal breather valve. The hydraulic seal breather valve comprises a housing, a partition board, a storage tank connecting port, an air suction pipe, an exhale pipe, a hydraulic seal liquid and a communicating tube, wherein the housing is in a cylindrical shape, the partition board is arranged in the housing to divide the housing into an inhale chamber and an exhale chamber, the airtight of the inhale chamber is separated from the airtight of the exhale chamber, the storage tank connecting port is disposed on an upper cover plate and connected to an opening of an upper bulkhead through a pipeline, the air suction pipe enables the inhale chamber to be communicated with the outside and comprises a lower end port which extends into the inhale chamber, the exhale pipe is arranged on the side wall of the upper portion of the exhale chamber to enable the exhale chamber to be communicated with the outside, the hydraulic seal liquid is contained in the inhale chamber and the exhale chamber, the communicating tube comprises an upper end face and a lower end face, and the communicating tube penetrates through the partition board to enable the hydraulic seal liquid in the inhale chamber to overflow to the exhale chamber. The depth of the lower end port of the air suction pipe, which is submerged in the hydraulic seal liquid of the exhale chamber, is identical to a liquid column height converted from a negative pressure value which is allowed by the storage tank. And the depth of the lower end face of the communicating tube, which is submerged in the hydraulic seal liquid of the exhale chamber, is identical to a liquid column height converted from a positive pressure value which is allowed by the storage tank.
Description
Technical field
The utility model relates to storage tank, particularly, relates to the dangerous chemical atmospheric storage tank with fluid-tight breathing valve.
Background technology
The dangerous chemical atmospheric storage tank is typically provided with breathing valve to guarantee that pressure in the storage tank is in certain scope.Particularly, the volume of material that storage tank is deposited changes with the variation of temperature, and the also correspondingly variation of its volatile quantity, so the pressure in the storage tank also increases or reduces thereupon.For storage tank safety, which is provided with breathing valve, to the storage tank pressure release, when hanging down to certain value, the pressure in the storage tank gives the storage tank tonifying Qi during with pressure height to the certain value in storage tank, and make the interior pressure of storage tank remain at the scope of a safety.Existing storage tank is provided with the mechanical type breathing valve, and this breathing valve is in case trigger, and cause sealing surface to depart from easily and cause gas leakage, contaminated environment, even bring disaster hidden-trouble.
The utility model content
The technical matters that the utility model will solve provides the storage tank of the breathing valve with accurate balancing tank internal pressure.
In order to solve the problems of the technologies described above, the utility model provides a kind of storage tank with fluid-tight breathing valve.This storage tank with fluid-tight breathing valve comprises: the storage tank body, comprise drum lower tank and with the hemispheric upper baffle of upper limb bonded assembly of this lower tank; And the fluid-tight breathing valve, connect in the earthing mutually through the opening gas on pipeline and the said upper baffle.This fluid-tight breathing valve comprises: shell, be cylindrical shape, and comprise cylinder and upper cover plate and lower cover that sidewall surrounds; Dividing plate is located in the said shell with the suction muffler on the top that is divided into airtight separation each other and the expiration chamber of bottom; The storage tank communication port is arranged on the said upper cover plate, is circular open, is connected to the opening of said upper baffle through pipeline; Aspirate tube is set to pass said upper cover plate said suction muffler is communicated with the external world, and comprises the lower port that extends in the said suction muffler; Exhaust tube is arranged on the sidewall on top, said expiration chamber so that said expiration chamber and communicates with the external world; Fluid-tight liquid is received within respectively in said suction muffler and the said expiration chamber; And communicating pipe, comprise upper surface and lower surface, be set to pass said dividing plate with the fluid-tight liquid in the said suction muffler of overflow in said expiration chamber; The degree of depth that the said lower port of said aspirate tube is submerged in the fluid-tight liquid of said suction muffler is calculated through following formula:
H
1=P
1* 10 * ρ
Water/ ρ
Fluid-tight liquid
Wherein, H
1Be submerged in the degree of depth in the fluid-tight liquid of said suction muffler for the said lower port of said aspirate tube, unit is a rice, P
1Be the negative pressure value that said storage tank allows, unit is kgf/cm
2, ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical; And the degree of depth that the said lower surface of said communicating pipe is submerged in the fluid-tight liquid in said expiration chamber is calculated through following formula:
H
2=P
2* 10 * ρ
Water/ ρ
Fluid-tight liquid
Wherein, H
2Be submerged in the degree of depth in the fluid-tight liquid in said expiration chamber for the said lower surface of said communicating pipe, unit is a rice, P
2Be the malleation value that said storage tank allows, unit is kgf/cm
2, ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical.
In a technical scheme of the utility model, said shell can be cylindrical shape.
In a technical scheme of the utility model, said fluid-tight breathing valve also can comprise the liquid supplementation pipe of replenishing fluid-tight liquid to said suction muffler, replenishes fluid-tight liquid when descending with the liquid level of the fluid-tight liquid in said suction muffler; And can comprise the overflow pipe that overflows unnecessary fluid-tight liquid in the said expiration chamber, constant with the electrolyte level that keeps the fluid-tight liquid in the said expiration chamber.
In a technical scheme of the utility model; Said fluid-tight breathing valve also can comprise the said lower port that is separately positioned on said aspirate tube and the gas distributor on the lower surface of said communicating pipe, so that be evenly distributed in the fluid-tight liquid through gas therebetween.
In a technical scheme of the utility model, said fluid-tight breathing valve also can comprise on the sidewall that is separately positioned on said suction muffler and said expiration chamber, the visor on the electrolyte level of fluid-tight liquid, keeps watch on the electrolyte level of fluid-tight liquid with range estimation.
In a technical scheme of the utility model, the port of said aspirate tube can be the inverted U-shaped tube shape, falls into wherein with dust protection.
In a technical scheme of the utility model, said exhaust tube is connected to incinerator, with the gas burning disposal with exhalation.
In a technical scheme of the utility model; Said fluid-tight breathing valve also can comprise and the lower end bonded assembly fluid-tight liquid collection tank of said overflow pipe and be connected the pump between said fluid-tight liquid collection tank and the said liquid supplementation pipe; Collecting fluid-tight liquid from said overflow pipe overflow, and the liquid level of the fluid-tight liquid in any one of said suction muffler and said expiration chamber when descending primer pump replenish fluid-tight liquid.
In a technical scheme of the utility model, said fluid-tight liquid can be transformer oil.
The storage tank with fluid-tight breathing valve of the utility model is accurately controlled the intrinsic pressure of storage tank through the fluid-tight breathing valve, has realized giving storage tank pressure release or tonifying Qi in good time.Because respectively through the liquid level in expiration chamber and the interior pressure of liquid level control storage tank of suction muffler; So under the situation of the liquid level that guarantees expiration chamber and suction muffler; This fluid-tight breathing valve does not almost have zero creep, has improved control accuracy greatly, and then has guaranteed the safety of storage tank body.
Description of drawings
Fig. 1 is the scheme drawing under the fluid-tight breathing valve state of equilibrium;
Fig. 2 is the scheme drawing under the fluid-tight breathing valve expiration state;
Fig. 3 is the scheme drawing under the fluid-tight breathing valve suction condition; And
Fig. 4 is the scheme drawing that the storage tank mode of operation with fluid-tight breathing valve of the utility model is shown.
The specific embodiment
Below, the embodiment of the fluid-tight breathing valve of the utility model is described in conjunction with accompanying drawing.
Fig. 1 is the scheme drawing under the fluid-tight breathing valve state of equilibrium of the utility model; Fig. 2 is the scheme drawing under the fluid-tight breathing valve expiration state of the utility model; Fig. 3 is the scheme drawing under the fluid-tight breathing valve suction condition of the utility model, and Fig. 4 is the scheme drawing that the storage tank mode of operation with fluid-tight breathing valve of the utility model is shown.
Like Fig. 1,2, shown in 3 and 4, the storage tank with fluid-tight breathing valve of the utility model comprises: storage tank body 70 and fluid-tight breathing valve.Storage tank body 70 comprise drum lower tank and with the hemispheric upper baffle of upper limb bonded assembly of this lower tank.The fluid-tight breathing valve is through the earthing connection mutually of the opening gas on pipeline and the upper baffle.
The fluid-tight breathing valve comprises shell 10.This shell 10 is a cylindrical shape, for example the prismatic shape of cylindrical shape, cylindroid shape or polygon.In the following description, be that example describes with the cylindrical shape.This shell 10 comprises cylinder 11 and the upper cover plate 12 and lower cover 13 that sidewall surrounds.The fluid-tight breathing valve also comprises dividing plate 20, is located in the shell 10 with the suction muffler 30 on the top that is divided into airtight separation each other and the expiration chamber 40 of bottom.Upper cover plate 12 is provided with storage tank communication port 14, is circular open, is connected to the opening (referring to Fig. 4) of said upper baffle through pipeline.Suction muffler 30 is provided with aspirate tube 31, is set to pass upper cover plate 11 suction muffler is communicated with the external world, and comprise lower port 32 that extends in the said suction muffler and the upper end 33 of stretching to the outside.Expiration chamber 40 is provided with exhaust tube 41, is arranged on the sidewall on 40 tops, said expiration chamber, stretches out, so that expiration chamber 40 communicates with the external world.Hold a certain amount of fluid-tight liquid (34,42) respectively in suction muffler 30 and the expiration chamber 40.The fluid-tight breathing valve also comprises communicating pipe 50, comprises upper surface 51 and lower surface 52 communicating pipe 50, be set to pass dividing plate 20 with the fluid-tight liquid 34 in the overflow suction muffler 30 in expiration chamber 40.The degree of depth that the lower port 32 of aspirate tube 31 is submerged in the fluid-tight liquid 34 of suction muffler 20 is calculated through following formula (1):
H
1=P
1* 10 * ρ
Water/ ρ
Fluid-tight liquid(1)
Wherein, H
1Be submerged in the degree of depth in the fluid-tight liquid 34 of suction muffler 30 for the lower port 32 of aspirate tube 31, unit is a rice, P
1Be the negative pressure value that storage tank 70 allows, unit is kgf/cm
2, ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical; And the degree of depth that the lower surface 52 of communicating pipe 50 is submerged in the fluid-tight liquid 42 in expiration chamber 40 is calculated through following formula (2):
H
2=P
2* 10 * ρ
Water/ ρ
Fluid-tight liquid(2)
Wherein, H
2Be submerged in the degree of depth in the fluid-tight liquid 42 in expiration chamber 40 for the lower surface 52 of communicating pipe 50, unit is a rice, P
2Be the malleation value that storage tank allows, unit is kgf/cm
2, ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical.
Need to prove that the height of water of getting in the formula here (1) and (2) under the barometric pressure is approximate 10 meters.The bar pressure of different regions is different, can revise according to each regional real atmosphere situation of pressing.For example, be modified to 9.7 to 9.8 meters.Concrete calculated example explanation as follows.
The malleation of storage tank is 0.005kgf/cm
2, negative pressure is 0.004kgf/cm
2, the fluid-tight density of liquid is 1.113g/cm
3, the density of water is 1g/cm
3, H then
2=0.005 * 10 * 1/1.113=0.0442 rice; And H
1=0.004 * 10 * 1/1.113=0.0359 rice.
In the embodiment of the utility model, the fluid-tight breathing valve also can comprise the liquid supplementation pipe 35 of replenishing fluid-tight liquid 34 to suction muffler 30, replenishes fluid-tight liquid when descending with the liquid level of the fluid-tight liquid 34 in suction muffler 30.Simultaneously, the fluid-tight breathing valve also can comprise the overflow pipe 43 that overflows unnecessary fluid-tight liquid 42 in the expiration chamber 40, and is constant with the electrolyte level that keeps the fluid-tight liquid 42 in the expiration chamber 40.
In the embodiment of the utility model, the fluid-tight breathing valve also can comprise the lower port 32 that is separately positioned on aspirate tube 31 and the gas distributor 53 and 36 on the lower surface 52 of communicating pipe 50, so that be evenly distributed in the fluid-tight liquid through gas therebetween.
In the embodiment of the utility model, the fluid-tight breathing valve also can comprise on the sidewall that is separately positioned on suction muffler 30 and expiration chamber 40, the visor 15 and 16 on the electrolyte level of fluid-tight liquid, keeps watch on the electrolyte level of fluid-tight liquid with range estimation.
In the embodiment of the utility model, the port 33 of aspirate tube 31 can be the inverted U-shaped tube shape, falls into wherein with dust protection.
In the embodiment of the utility model, exhaust tube 41 can be connected to incinerator through pipeline, with the gas burning disposal with exhalation.
In the embodiment of the utility model; The fluid-tight breathing valve also can comprise and the lower end bonded assembly fluid-tight liquid collection tank 60 of overflow pipe 43 and be connected the pump 61 between fluid-tight liquid collection tank 60 and the liquid supplementation pipe 35; Collecting fluid-tight liquid from overflow pipe 43 overflows, and the liquid level of the fluid-tight liquid in any one of suction muffler 30 and expiration chamber 40 when descending primer pump 61 replenish the fluid-tight liquid.
In the embodiment of the utility model, fluid-tight liquid can be water, oil, anti-freezer or any chemical inertness other liquid preferably, is preferably transformer oil.The viscosity that should be noted in the discussion above that fluid-tight liquid is unsuitable excessive, and can not solidify at ambient temperature.For example, for cold district, can not adopt water is fluid-tight liquid.Even adopt transformer oil as fluid-tight liquid, also will select the transformer oil of concrete model according to ambient temperature situations.For example, cold district can adopt No. 40 transformer oil or anti-freezer, and No. 10 transformer oil or anti-freezer can be adopted in warm area.In addition, transformer oil has good flame property, less viscosity and very low volatility.
The principle of work of the storage tank with fluid-tight breathing valve of the utility model is described below in conjunction with Fig. 1, Fig. 2 and Fig. 3.
Shown in the arrow among Fig. 2, as the malleation value P of storage tank
1The height liquid seal H that surpasses the fluid-tight liquid 42 in expiration chamber 40
1The time; Volatilization gas in the storage tank enters into the space on the liquid level of suction muffler 30 of fluid-tight breathing valve through storage tank communication port 14; And through communicating pipe 50, be discharged in the space more than the liquid level in the expiration chamber 40 via the fluid-tight liquid 42 the expiration chamber 40 from the lower surface 52 of communicating pipe 50.At last, be discharged into the outside of fluid-tight breathing valve through exhaust tube 41.Air there is the volatilization gas of pollution, can introduces incinerator or other place of further handling through the pipeline that connects exhaust tube 41.
As stated, along with the discharging of volatilization gas, the pressure decay in the storage tank.Malleation value P when storage tank
1Height liquid seal H less than the fluid-tight liquid 42 in expiration chamber 40
1The time, stopping the pressure release of storage tank, the fluid-tight breathing valve returns to state of equilibrium shown in Figure 1.
Shown in the arrow among Fig. 3, as the negative pressure value P of storage tank
2The height liquid seal H that surpasses the fluid-tight liquid 34 of suction muffler 30
2The time, the pressure in the space that the liquid level of suction muffler 30 is above also correspondingly reduces P
2Pressure, the lower port 32 of therefore extraneous atmosphere through aspirate tube 31 gets in the space more than the liquid level of suction mufflers 30 via fluid-tight liquid 34 again.At last, the pipeline of the opening through being connected to said upper baffle will get into the air in the space more than the liquid level of suction muffler 30 and introduce in the storage tank, thereby improve the pressure in the storage tank.
Negative pressure value P when storage tank
2Be lower than the height liquid seal H of the fluid-tight liquid 34 of suction muffler 30
2The time, stopping the tonifying Qi of storage tank, the fluid-tight breathing valve returns to state of equilibrium shown in Figure 1.
The storage tank with fluid-tight breathing valve of the utility model is accurately controlled the intrinsic pressure of storage tank through the fluid-tight breathing valve, has realized giving storage tank pressure release or tonifying Qi in good time.Because respectively through the liquid level in expiration chamber and the interior pressure of liquid level control storage tank of suction muffler; So under the situation of the liquid level that guarantees expiration chamber and suction muffler; This fluid-tight breathing valve does not almost have zero creep, has improved control accuracy greatly, and then has guaranteed the safety of storage tank body.
Those skilled in the art should be understood that, according to design demand and other factors, can carry out various modifications, combination, part combination and replacement.Such modification, combination, part combine and replacement falls within the scope of accompanying claims or its equivalent.
Claims (9)
1. the storage tank with fluid-tight breathing valve is characterized in that, comprising:
The storage tank body, comprise drum lower tank and with the hemispheric upper baffle of upper limb bonded assembly of this lower tank; And
The fluid-tight breathing valve connects in the earthing through the opening gas on pipeline and the said upper baffle mutually,
Said fluid-tight breathing valve comprises:
Shell is cylindrical shape, comprises cylinder and upper cover plate and lower cover that sidewall surrounds;
Dividing plate is located in the said shell with the suction muffler on the top that is divided into airtight separation each other and the expiration chamber of bottom;
The storage tank communication port is arranged on the said upper cover plate, is circular open, is connected to the opening of said upper baffle through pipeline;
Aspirate tube is set to pass said upper cover plate said suction muffler is communicated with the external world, and comprises the lower port that extends in the said suction muffler;
Exhaust tube is arranged on the sidewall on top, said expiration chamber so that said expiration chamber and communicates with the external world;
Fluid-tight liquid is received within respectively in said suction muffler and the said expiration chamber; And
Communicating pipe comprises upper surface and lower surface, be set to pass said dividing plate with the fluid-tight liquid in the said suction muffler of overflow in said expiration chamber;
The degree of depth that the said lower port of said aspirate tube is submerged in the fluid-tight liquid of said suction muffler is calculated through following formula:
H
1=P
1* 10 * ρ
Water/ ρ
Fluid-tight liquid
Wherein,
H
1Be submerged in the degree of depth in the fluid-tight liquid of said suction muffler for the said lower port of said aspirate tube, unit is a rice,
P
1Be the negative pressure value that said storage tank allows, unit is kgf/cm
2,
ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical;
And
The degree of depth that the said lower surface of said communicating pipe is submerged in the fluid-tight liquid in said expiration chamber is calculated through following formula:
H
2=P
2* 10 * ρ
Water/ ρ
Fluid-tight liquid
Wherein,
H
2Be submerged in the degree of depth in the fluid-tight liquid in said expiration chamber for the said lower surface of said communicating pipe, unit is a rice,
P
2Be the malleation value that said storage tank allows, unit is kgf/cm
2,
ρ
WaterBe the density of water, ρ
Fluid-tight liquidBe fluid-tight density of liquid, ρ
WaterAnd ρ
Fluid-tight liquidThe unit of the two is identical.
2. the storage tank with fluid-tight breathing valve as claimed in claim 1 is characterized in that, said shell is a cylindrical shape.
3. the storage tank with fluid-tight breathing valve as claimed in claim 1 is characterized in that, said fluid-tight breathing valve also comprises the liquid supplementation pipe of replenishing fluid-tight liquid to said suction muffler, replenishes fluid-tight liquid when descending with the liquid level of the fluid-tight liquid in said suction muffler; And comprise the overflow pipe that overflows unnecessary fluid-tight liquid in the said expiration chamber, constant with the electrolyte level that keeps the fluid-tight liquid in the said expiration chamber.
4. the storage tank with fluid-tight breathing valve as claimed in claim 1; It is characterized in that; Said fluid-tight breathing valve also comprises the said lower port that is separately positioned on said aspirate tube and the gas distributor on the lower surface of said communicating pipe, so that be evenly distributed in the fluid-tight liquid through gas therebetween.
5. like any one described storage tank of claim 1 to 4 with fluid-tight breathing valve; It is characterized in that; Said fluid-tight breathing valve also comprises on the sidewall that is separately positioned on said suction muffler and said expiration chamber, the visor on the electrolyte level of fluid-tight liquid, keeps watch on the electrolyte level of fluid-tight liquid with range estimation.
6. like any one described storage tank of claim 1 to 4, it is characterized in that the port of said aspirate tube is the inverted U-shaped tube shape, falls into wherein with dust protection with fluid-tight breathing valve.
7. like any one described storage tank of claim 1 to 4, it is characterized in that said exhaust tube is connected to incinerator, with gas burning disposal with exhalation with fluid-tight breathing valve.
8. the storage tank with fluid-tight breathing valve as claimed in claim 3; It is characterized in that; Said fluid-tight breathing valve also comprises and the lower end bonded assembly fluid-tight liquid collection tank of said overflow pipe and be connected the pump between said fluid-tight liquid collection tank and the said liquid supplementation pipe; Collecting fluid-tight liquid from said overflow pipe overflow, and the liquid level of the fluid-tight liquid in any one of said suction muffler and said expiration chamber when descending primer pump replenish fluid-tight liquid.
9. like any one described storage tank of claim 1 to 4, it is characterized in that said fluid-tight liquid is transformer oil with fluid-tight breathing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200283539U CN202440025U (en) | 2012-01-21 | 2012-01-21 | Storage tank with hydraulic seal breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200283539U CN202440025U (en) | 2012-01-21 | 2012-01-21 | Storage tank with hydraulic seal breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440025U true CN202440025U (en) | 2012-09-19 |
Family
ID=46821479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200283539U Expired - Fee Related CN202440025U (en) | 2012-01-21 | 2012-01-21 | Storage tank with hydraulic seal breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202440025U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569542A (en) * | 2013-11-07 | 2014-02-12 | 重庆紫光新科化工开发有限公司 | Breathing system of storage tank |
| CN103627615A (en) * | 2013-12-13 | 2014-03-12 | 广东省九江酒厂有限公司 | Method of promoting aging of white spirit |
| CN104973357A (en) * | 2015-06-29 | 2015-10-14 | 江苏永钢集团有限公司 | Chemical tank respiratory air recycling system |
| CN104973358A (en) * | 2015-06-29 | 2015-10-14 | 江苏永钢集团有限公司 | Chemical tank pressure balance device |
| CN105151583A (en) * | 2015-07-10 | 2015-12-16 | 湖北泰盛化工有限公司 | Inert gas protection device for flammable and explosive material container |
| CN106979361A (en) * | 2017-05-10 | 2017-07-25 | 佛山市燃气集团股份有限公司 | A kind of liquid-seal type back-fire relief isolating device |
| CN109279669A (en) * | 2018-09-26 | 2019-01-29 | 高频美特利环境科技（北京）有限公司 | Liquid seal device |
| CN110203573A (en) * | 2018-02-28 | 2019-09-06 | 中石化广州工程有限公司 | A kind of collection system and method for oil product storage tank volatile organic matter |
-
2012
- 2012-01-21 CN CN2012200283539U patent/CN202440025U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569542A (en) * | 2013-11-07 | 2014-02-12 | 重庆紫光新科化工开发有限公司 | Breathing system of storage tank |
| CN103569542B (en) * | 2013-11-07 | 2015-09-23 | 重庆紫光新科化工开发有限公司 | Storage tank respiratory system |
| CN103627615A (en) * | 2013-12-13 | 2014-03-12 | 广东省九江酒厂有限公司 | Method of promoting aging of white spirit |
| CN103627615B (en) * | 2013-12-13 | 2015-10-28 | 广东省九江酒厂有限公司 | A kind of method promoting white spirit ageing |
| CN104973357A (en) * | 2015-06-29 | 2015-10-14 | 江苏永钢集团有限公司 | Chemical tank respiratory air recycling system |
| CN104973358A (en) * | 2015-06-29 | 2015-10-14 | 江苏永钢集团有限公司 | Chemical tank pressure balance device |
| CN105151583A (en) * | 2015-07-10 | 2015-12-16 | 湖北泰盛化工有限公司 | Inert gas protection device for flammable and explosive material container |
| CN106979361A (en) * | 2017-05-10 | 2017-07-25 | 佛山市燃气集团股份有限公司 | A kind of liquid-seal type back-fire relief isolating device |
| CN110203573A (en) * | 2018-02-28 | 2019-09-06 | 中石化广州工程有限公司 | A kind of collection system and method for oil product storage tank volatile organic matter |
| CN110203573B (en) * | 2018-02-28 | 2020-09-08 | 中石化广州工程有限公司 | Method for collecting volatile organic compounds of oil product storage tank |
| CN109279669A (en) * | 2018-09-26 | 2019-01-29 | 高频美特利环境科技（北京）有限公司 | Liquid seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20190121 |