CN201619813U - Gas-phase temperature control sewage storing tank - Google Patents
Gas-phase temperature control sewage storing tank Download PDFInfo
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- CN201619813U CN201619813U CN200920014043XU CN200920014043U CN201619813U CN 201619813 U CN201619813 U CN 201619813U CN 200920014043X U CN200920014043X U CN 200920014043XU CN 200920014043 U CN200920014043 U CN 200920014043U CN 201619813 U CN201619813 U CN 201619813U
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Abstract
The utility model discloses a gas-phase temperature control sewage storing tank, comprising a tank body; the upper part in the tank body is a gas-phase space; the top part in the tank body is provided with a temperature control system which comprises a steam jet structure and a control device; the control device detects the temperature of the gas-phase space of the storing tank; and the control device adjusts steam flow of the steam jet structure according to the comparison of the detected temperature of the gas-phase space and the set control temperature of the gas-phase space of the storing tank. The gas-phase temperature control sewage storing tank can reduce or eliminate the phenomenon that the ambient temperature change causes the temperature change of the storing tank so as to generate gas suction and exhaust, greatly reduce the emission amount of waste gas of the storing tank, and especially can reduce the emission of waste gas caused by small breathing.
Description
Technical field
The present invention relates to a kind of gas phase temperature control sewage storage tank, that particularly reduces discharge amount of exhaust gas is used for petroleum refining enterprise and part petrochemical enterprise, the gas phase temperature control sewage storage tank of the acidulous water of sulfur compound, ammonia.
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 gas phase temperature control sewage 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 gas phase temperature control sewage storage tank comprises tank body, the tank body internal upper part is a gas-phase space, at tank body inner top gas-phase space temperature controlling system is set, temperature controlling system comprises steam jet structure and control setup, control setup detects gas-phase space temperature in the storage tank, control setup enters the steam flow of steam jet structure according to the contrast adjustment 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 gas phase temperature control sewage storage tank, the steam jet structure can adopt this area conventional structure, and as annular tube type structure, a tubular type structure etc., the steam jet structure links to each other with the steam inlet, and the steam inlet is provided with steam flow control valve.The steam that uses can be the saturated vapor or the superheated vapour of 100～130 ℃ of temperature.
In the utility model gas phase temperature control sewage storage tank, can fan be set, promote the homogeneity of gas phase temperature in the storage tank at storage tank gas-phase space top.When the storage tank gas phase existed fire gases and oxygen, temperature controlling system and fan were provided with explosion prevention function.
In the utility model gas phase temperature control sewage storage tank, control setup can adopt the various suitable forms in this area, as switch control, 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, open or strengthen steam jet structure inlet steam flow, when detected gas-phase space temperature reaches the storage tank gas-phase space control temperature of setting, close or reduce steam jet structure inlet steam flow.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, open or strengthen steam jet structure inlet steam flow, when detected gas-phase space temperature reaches on the design temperature in limited time, close or reduce steam jet structure inlet steam flow.Steam jet structure inlet steam flow can adopt simple opening and closing mode, also can adopt various control methods such as proportion integration differentiation control.
In the utility model gas phase temperature control sewage 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, generally be controlled at below the local daily maximum temperature.
The utility model temperature control sewage 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 uperize, 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.Direct injection steam has simple, the flexible operation of device, and is highly sensitive, and advantages such as safety height only produce low amounts of water after the steam condensation simultaneously, do not influence the normal running of sewage storage tank.
Description of drawings
Fig. 1 is a kind of concrete structure scheme drawing of utility model temperature control sewage storage tank.
Wherein: the 1-storage tank, liquid level in the 2-storage tank, 3-storage tank internal upper part gas-phase space, the steam jet structure 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, 8-steam jet structure steam inlet, the steam inlet flow-controlling gate of 9-steam jet structure.
The specific embodiment
Specify the process and the effect of the inventive method below by certain enterprise's acidulous water tank field situation.
As shown in Figure 1, liquid level 2 tops have gas-phase space 3 in the storage tank 1, at storage tank internal upper part gas-phase space 3 tops temperature controlling system is set, temperature controlling system comprises the steam jet structure 4 of temperature controlling system, the control setup 5 of temperature controlling system and the Temperature Detector 7 of temperature controlling system, steam jet structure 4 communicates with steam jet structure steam inlet 8, steam jet structure steam inlet 8 is provided with the steam inlet flow-controlling gate of steam jet structure, tank top Waste gas outlet 6.
Below in conjunction with certain enterprise's acidulous water storage tank, specify result of use of the present utility model.
There are 8 acidulous water storage tanks in certain enterprise, 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 max.cap. of diel is 1000m during normal running
3
Every storage tank setting gas phase temperature control system as shown in Figure 1.
Steam off injection structure inlet steam when design storage tanks inner top gas phase temperature reaches 35 ℃ is opened steam jet structure inlet steam when storage tank inner top temperature is lower than 35 ℃, the little breathing free air capacity of diel can be dropped to 100m
3Below, be equivalent to reduce every day the about 900m of discharge amount of exhaust gas
3
Claims (6)
1. gas phase temperature control sewage 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 tank body inner top gas-phase space, temperature controlling system comprises steam jet structure and control setup, control setup detects gas-phase space temperature in the storage tank, and control setup enters the steam flow of steam jet structure according to the contrast adjustment of the storage tank gas-phase space control temperature of this detected gas-phase space temperature and setting.
2. according to the described storage tank of claim 1, it is characterized in that: the steam jet structure adopts an annular tube type structure or a tubular type structure.
3. according to the described storage tank of claim 1, it is characterized in that: the steam jet structure links to each other with the steam inlet, and the steam inlet is provided with steam flow control valve.
4. according to the described storage tank of claim 1, it is characterized in that: fan is set at storage tank gas-phase space top.
5. according to the described storage tank of claim 1, it is characterized in that: control setup adopts switch control, proportion integration differentiation control or fuzzy control.
6. according to the described storage tank of claim 4, it is characterized in that: when the storage tank gas phase existed fire gases and oxygen, temperature controlling system and fan were provided with explosion prevention function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920014043XU CN201619813U (en) | 2009-05-25 | 2009-05-25 | Gas-phase temperature control sewage storing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920014043XU CN201619813U (en) | 2009-05-25 | 2009-05-25 | Gas-phase temperature control sewage storing tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201619813U true CN201619813U (en) | 2010-11-03 |
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ID=43023268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920014043XU Expired - Lifetime CN201619813U (en) | 2009-05-25 | 2009-05-25 | Gas-phase temperature control sewage storing tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201619813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990799A (en) * | 2017-04-14 | 2017-07-28 | 中国石油化工股份有限公司 | The acid water storage tank of combined type prevention dodges quick-fried method of controlling security |
| CN112110065A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Intelligent regulation and control system for oil product storage tank heater |
-
2009
- 2009-05-25 CN CN200920014043XU patent/CN201619813U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990799A (en) * | 2017-04-14 | 2017-07-28 | 中国石油化工股份有限公司 | The acid water storage tank of combined type prevention dodges quick-fried method of controlling security |
| CN112110065A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Intelligent regulation and control system for oil product storage tank heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |