CN201458084U - Volatile liquid storage tank - Google Patents
Volatile liquid storage tank Download PDFInfo
- Publication number
- CN201458084U CN201458084U CN2009200140410U CN200920014041U CN201458084U CN 201458084 U CN201458084 U CN 201458084U CN 2009200140410 U CN2009200140410 U CN 2009200140410U CN 200920014041 U CN200920014041 U CN 200920014041U CN 201458084 U CN201458084 U CN 201458084U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- temperature
- phase space
- gas
- electric heater
- 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 - Lifetime
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a volatile liquid storage tank, which comprises a tank body. The inner upper part of the tank body is a gas phase space, the inner top part of the tank body is provided with a temperature control system, the temperature control system comprises an electric heater and a control device, the control device detects the temperature of the gas phase space in the storage tank, and the control device adjusts the power of the electric heater according to the comparison between the detected gas phase space temperature and the set gas phase space control temperature of the storage tank. The volatile liquid storage tank of the utility model can reduce or eliminate the air suction and exhaust phenomenon caused by temperature change of the storage tank due to the change of the environmental temperature, greatly reduce the waste gas emission amount of the storage tank, and greatly reduce the waste gas emission caused by small respiration in particular.
Description
Technical field
The utility model relates to a kind of volatile liquid storage tank, and that particularly reduces discharge amount of exhaust gas is used for petroleum refining enterprise and part petrochemical enterprise, the volatile liquid storage tank of sulfur compound, ammonia, oil product.
Background technology
Exhaust gas discharged such as the acidulous water storage tank district of industries such as oil refining, chemical industry, oil product tank field are important foul gas source of pollution, the pollutants such as volatile hydrocarbon, hydrogen sulphide, organic sulfide, ammonia that wherein contains higher concentration, if do not take actv. improvement method, serious pollution can be caused, a large amount of wastings of resources can be caused simultaneously.
The exhaust in storage tank district and breathing process are called " breathing " in this area, the breathing that causes of fluctuating up and down of storage tank internal cause liquid level is commonly referred to as big breathing, and the breathing that causes because of the diurnal temperature fluctuation is commonly referred to as little breathing.In the large-scale storage tank district, in operation just often, big respiratory capacity generally can be controlled in the small range, therefore, and the major cause of discharging waste gas when little breathing is the normal running of storage tank district.
The existing improvement method of this type of waste gas has several classes such as firing method, condensation method, bioanalysis, absorption method, chemical absorption method and combination method.Foul gas is handled and is selected which kind of treatment technology actually, can take all factors into consideration according to gas source, pollutants composition, concentration, tolerance, processing requirements, operation, safety and technological adaptability.
Though said method can be handled storage tank district discharging waste gas to a certain extent, the equipment investment of processing method and running cost are generally higher, and therefore how reducing the storage-tank waste gas quantity discharged is only the most basic improvement method.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of volatile liquid storage tank, and this storage tank can reduce discharge amount of exhaust gas.
Storage tank promptly is generally tank temperature rising in the daytime, outwards exhaust because of the little breathing that the diurnal temperature fluctuation causes has certain rule; After night, tank temperature dropped to uniform temperature, inwardly air-breathing; Form respiratory intermittently.In the large-scale storage tank district, in operation just often, little breathing is the major cause of discharging waste gas.When the storage tank normal running, a jar internal upper part has bigger gas-phase space.The present invention is directed to the above-mentioned exhaust emission characteristics of storage tank, adopt following reducing discharge of waste gases processing method.
The utility model volatile liquid storage tank comprises tank body, the tank body internal upper part is a gas-phase space, at the tank body inner top temperature controlling system is set, temperature controlling system comprises electric heater and control setup, control setup detects gas-phase space temperature in the storage tank, control setup is adjusted the power of electric heater according to the contrast of the storage tank gas-phase space control temperature of this detected gas-phase space temperature and setting, reduce or eliminate the environment day and night temperature to gas-phase space Temperature Influence in the storage tank with temperature controlling system, reach and reduce or eliminate the little breathing phenomenon of storage tank.
In the utility model volatile liquid storage tank, electric heater adopts the electric heaters such as electrically heated rod of this area routine, and electric heater can be provided with one, and several storage tank inner tops that are uniformly set at also can be set.
In the utility model volatile liquid storage tank, can fan be set, promote the homogeneity of gas phase temperature in the storage tank at storage tank gas-phase space top.Temperature controlling system, electric heater and fan preferably have explosion prevention function, the safety when improving the device operation.
In the utility model volatile liquid storage tank, control setup can adopt the various suitable forms in this area, control as switch, proportion integration differentiation control, fuzzy control etc. several concrete modes as: when detected gas-phase space temperature is lower than the storage tank gas-phase space control temperature of setting, opening electric heater, when detected gas-phase space temperature reaches the storage tank gas-phase space control temperature of setting, close electric heater. the storage tank gas-phase space control temperature of setting also can be a scope, the storage tank gas-phase space control lowest temperature of storage tank gas-phase space control temperature upper limit of promptly setting and setting, when being lower than under the design temperature, detected gas-phase space temperature prescribes a time limit, opening electric heater, when reaching on the design temperature, detected gas-phase space temperature prescribes a time limit, close electric heater. electric heater can adopt simple opening and closing mode, also can adopt various control methods such as proportion integration differentiation control.
In the utility model volatile liquid storage tank, the storage tank gas-phase space of setting control temperature according to local daily maximum temperature, day lowest temperature and storage tank in factor such as liquidus temperature determine.Sewage jar, oil tank pot liquid temperature at petrochemical enterprise generally are higher than local daily maximum temperature, and gas phase control temperature should be below the pot liquid temperature in the jar of setting.
The utility model volatile liquid storage tank is by being provided with temperature controlling system in storage tank, when reducing, ambient temperature improves the temperature of gas-phase space in the storage tank by electric heater, reduce or eliminate because of variation of ambient temperature causes tank temperature and change the air-breathing and exhaust phenomenon that takes place, reduce the storage-tank waste gas quantity discharged greatly, particularly can reduce the exhaust emission that causes because of little breathing greatly.
Description of drawings
Fig. 1 is a kind of concrete structure scheme drawing of utility model volatile liquid storage tank.
Wherein: liquid level in the 1-volatile liquid storage tank, 2-volatile liquid storage tank, 3-volatile liquid storage tank internal upper part gas-phase space, the electric heater of 4-temperature controlling system, the control setup of 5-temperature controlling system, 6-tank top Waste gas outlet, the Temperature Detector of 7-temperature controlling system.
The specific embodiment
Specify the process and the effect of the inventive method below by certain oil refining enterprise acidulous water tank field situation.
As shown in Figure 1, liquid level 2 tops have gas-phase space 3 in the volatile liquid storage tank 1, at volatile liquid storage tank internal upper part gas-phase space 3 tops temperature controlling system is set, temperature controlling system comprises the electric heater 4 of temperature controlling system, the control setup 5 of temperature controlling system and the Temperature Detector 7 of temperature controlling system, tank top Waste gas outlet 6.
Below in conjunction with this oil refining enterprise acidulous water tank field situation, specify result of use of the present utility model.
This oil refining enterprise has 8 acidulous water storage tanks, and 62 standby in usefulness, and total gas-phase space volume is 16168m
3, it is about 45 ℃ that acidulous water comes coolant-temperature gage, water temperature is substantially at 40～45 ℃ in the storage tank.Ground of living in maximum day and night temperature in certain season is 15 ℃, 35 ℃ of the highest temperatures, and the little breathing discharge capacity of diel is 1000m during normal running
3
Every storage tank setting gas phase temperature control system as shown in Figure 1.
Daily temperature raise generally 3 up to 15 o'clock, suppose that gaseous emission speed and time relation curve are normal distribution curve, the air-conditioning heating arrangement that is about 16KW by this curve design maximum heating power, close heating arrangement when temperature reaches 35 ℃ in the design storage tanks, open heating arrangement when temperature is lower than 35 ℃ in the storage tank, the little breathing free air capacity of diel can be dropped to 100m
3Below, can eliminate the exhaust emission that causes because of little breathing substantially.Be equivalent to reduce every day the about 900m of discharge amount of exhaust gas
3
Claims (8)
1. volatile liquid storage tank, comprise tank body, the tank body internal upper part is a gas-phase space, it is characterized in that: temperature controlling system is set at the tank body inner top, temperature controlling system comprises electric heater and control setup, control setup detects gas-phase space temperature in the storage tank, and control setup is adjusted the power of electric heater according to the contrast of the storage tank gas-phase space control temperature of this detected gas-phase space temperature and setting.
2. according to the described volatile liquid storage tank of claim 1, it is characterized in that: electric heater adopts electrically heated rod, and electric heater is provided with one, perhaps several storage tank inner tops that are uniformly set at.
3. according to the described volatile liquid storage tank of claim 1, it is characterized in that: fan is set at storage tank gas-phase space top.
4. according to the described volatile liquid storage tank of claim 1, it is characterized in that: control setup adopts switch control, proportion integration differentiation control or fuzzy control.
5. according to claim 1 or 4 described volatile liquid storage tanks, it is characterized in that: the mode of control setup is: when detected gas-phase space temperature is lower than the storage tank gas-phase space control temperature of setting, opening electric heater, when detected gas-phase space temperature reaches the storage tank gas-phase space control temperature of setting, close electric heater.
6. according to claim 1 or 4 described volatile liquid storage tanks, it is characterized in that: the mode of control setup is: the storage tank gas-phase space control temperature of setting is a scope, the storage tank gas-phase space control lowest temperature of storage tank gas-phase space control temperature upper limit of promptly setting and setting, when being lower than under the design temperature, detected gas-phase space temperature prescribes a time limit, opening electric heater, prescribe a time limit when detected gas-phase space temperature reaches on the design temperature, close electric heater.
7. according to the described volatile liquid storage tank of claim 1, it is characterized in that: temperature controlling system and electric heater have explosion prevention function.
8. according to the described volatile liquid storage tank of claim 3, it is characterized in that: fan has explosion prevention function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200140410U CN201458084U (en) | 2009-05-25 | 2009-05-25 | Volatile liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200140410U CN201458084U (en) | 2009-05-25 | 2009-05-25 | Volatile liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201458084U true CN201458084U (en) | 2010-05-12 |
Family
ID=42385437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200140410U Expired - Lifetime CN201458084U (en) | 2009-05-25 | 2009-05-25 | Volatile liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201458084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582979A (en) * | 2012-02-22 | 2012-07-18 | 上海至纯洁净***科技股份有限公司 | Stainless steel liquid storage tank |
-
2009
- 2009-05-25 CN CN2009200140410U patent/CN201458084U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582979A (en) * | 2012-02-22 | 2012-07-18 | 上海至纯洁净***科技股份有限公司 | Stainless steel liquid storage tank |
| CN102582979B (en) * | 2012-02-22 | 2014-04-16 | 上海至纯洁净***科技股份有限公司 | Stainless steel liquid storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101637663B (en) | Method for treating release gas in storage tank area | |
| CN104524947A (en) | Spraying organic waste gas treatment system and treatment method based on molecular sieve adsorption technology | |
| CN201458108U (en) | Stock tank | |
| CN201458084U (en) | Volatile liquid storage tank | |
| CN202440010U (en) | Storage tank for volatile liquid materials | |
| CN201619813U (en) | Gas-phase temperature control sewage storing tank | |
| CN202942808U (en) | Methane desulphurizing device for anaerobic reactor by blow-off method | |
| CN101537311B (en) | Biological purification method for light-concentration volatile mixed organic exhaust gas | |
| KR101653362B1 (en) | Biomethane and Power Generation Unit by integrating membrane separation process and internal combustion engine | |
| CN205925325U (en) | Oil gas recycling device | |
| CN102746904A (en) | Treating device and treating process for waste gas produced in pyrolysis of waste rubber and plastics | |
| CN208340476U (en) | Acid water tank field VOC emission reduction device | |
| CN204816127U (en) | Airtight recovery plant of atmospheric storage tank organic waste gas | |
| CN110055118A (en) | A kind of method and device of biogas desulfurization | |
| CN209237637U (en) | A kind of cold bulging volatilization gas zero-emission negative pressure recovery system | |
| CN204981796U (en) | Marsh gas purification deoxidization system | |
| CN209188435U (en) | A kind of high power concentration runner system | |
| CN203990299U (en) | Gas protection desulfurizer | |
| CN101898668B (en) | Storage tank for reducing exhaust gas emission | |
| CN208038088U (en) | A kind of Toluene Wastewater hot blow desorption adsorption device | |
| CN103170217A (en) | Method for purifying benzene containing waste gas and recycling benzene and system thereof | |
| CN101670926B (en) | Emission-reduction processing method and device for storage-tank waste gas | |
| CN203112780U (en) | Condensing and separating device for water in biogas | |
| CN103127819B (en) | Methane treatment system | |
| CN208594294U (en) | Biofermentation steam tail gas heat energy recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |