CN1448341A - Cesspool sealing method - Google Patents
Cesspool sealing method Download PDFInfo
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- CN1448341A CN1448341A CN02109414A CN02109414A CN1448341A CN 1448341 A CN1448341 A CN 1448341A CN 02109414 A CN02109414 A CN 02109414A CN 02109414 A CN02109414 A CN 02109414A CN 1448341 A CN1448341 A CN 1448341A
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- Prior art keywords
- sewage lagoon
- water
- water seal
- cover plate
- sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The present invention is sewage reservoir sealing method is designed based on the waste gas treating requirement of sewage reservoir. The said method can avoid the influence of abnormal condition and abrupt event to sewage reservoir and gas treating apparatus and ensure their stable operation. The method features the movable cover plate, water seal elbow, spare air inlet, observing port, etc. set on the sealed cover plate of the sewage reservoir. The method of the present invention is suitable for sealing of various sewage reservoir needing induced draught for treatment.
Description
Technical field
The present invention relates to a kind of sewage lagoon enclosure method, particularly distribute the enclosure method of treatment tank in the sewage-farm of atmospheric polluting material, specifically make steadily the bleed enclosure method of operation of treatment tank.
Background technology
In industries such as oil recovery, oil refining, chemical industry, leather, printing and dyeing, metallurgy, and produce a large amount of sewage in the urban life, correspondingly exist a large amount of sewage-farms.Usually, these sewage-farms are made up of many sewage treatment facilities, are example with the sewage-farm of petrochemical enterprise, and water quality regulation pond, oil trap, flotation cell, biochemical aeration tank etc. are arranged usually.These sewage treatment facilities, substantially be concrete basin, and mostly be open installation, as the aerobism facilities for treating waste water on large scale of mentioning among the CN1175556, efficient trade effluent and the sewage treatment unit mentioned among the CN2312926, these devices have a large amount of volatile organic matters in sewage treatment process, the gas that foul gas and biological fermentation produce is dispersed in the atmosphere, oil trap as refinery, flotation cell, biochemical aeration tanks etc. all produce a large amount of volatile organic gas, foul gas enters air, Working environment and atmosphere are caused severe contamination, violate relevant environmental regulation.Therefore, the improvement of sewage-farm emission gases is subjected to common concern at home and abroad.
Administer the emission gases of each treatment tank in the sewage-farm, at first will be with these sewage lagoon sealing treatment, so that emission gases is transported to gas treatment equipment by pipeline, blower fan.The quality of enclosure method, whether be directly connected to can be with the device of smallest size, to greatest extent emission gases is all handled, whether can guarantee the normal operation of the original processing capacity of treatment tank, and the steady running that whether can guarantee emission-control equipment, therefore, the enclosure method of treatment tank is very important.In closed process, should resolve cover plate selection, sewage lagoon operating equipment (for example Oil scraper on the oil trap, the slag scraper on the flotation cell etc.) sealing on every side emphatically, and because the other problem that sealing brings etc.
Present enclosure method is with cover plate the pond face not to be stayed the sealing of ground, slit as far as possible, on the cover plate of pond one end bleed ports is installed; Around operating equipments such as Oil scraper, flotation machine, do not seal, seal, adopt glass or synthetic glass looking glass with metal grating, so that in when operation claire situation, and many as far as possible oil extractions when situation is accomplished frizing in the claire, few draining, purpose such as many as far as possible deslagginves, few draining when scraping slag.Closed cover is selected cement plate, glass epoxy, asbestos plate, steel plate etc. mostly for use, and the sewage surface is about 500～1500mm to the distance of cover plate in the pond; Usually, the operating stick of operating equipments such as Oil scraper, flotation machine, controlling board etc. pass cover plate, portion's operation on the cover board.As pointing out in the 4th phase of nineteen ninety-five " petrochemical complex environment protection " the 31st～37 page disclosed " discussion of odor pollution in refinery and Preventing Countermeasures ", measure such as take to seal, add a cover for open container evaporable malodor source.
Summary of the invention
In the enclosure method of the prior art, the pond face does not stay the sealing of ground, slit as far as possible, and the way that air-vent at one end is installed, make when the induced draft fan bleed is operated, the staff can't observe the pressure state and the mobility status of pool gas, also is difficult to come Pollutant levels in the adjustments of gas by introducing air.
In the enclosure method of the prior art, do not seal around the operating equipment, and do not seal area even as big as claire situation in operating process, exist operator and fall into danger in the pond, also exist from the excessive suction in this position or emission gases and influence the possibility of entire sewage pond off gas treatment effect; Though fall into danger in the pond and eliminated operator with the metal grating sealing around the operating equipment, but have the problem of excessive thus suction or emission gases.The problem that glass or synthetic glass looking glass exist is, through after a while, owing to greasy dirt, reason such as aging, is difficult to be re-used as looking glass and uses.
Another major issue of ignoring in the enclosure method of prior art is the pressure-stabilisation that how to guarantee under error state (ERST) in the pond, and then has influence on the air input and the inlet gas concentration of emission-control equipment, and the normal running of emission-control equipment is brought disadvantageous effect.For example, sewage lagoon is under the abnormal operation situation or under the situation of ambient conditions sudden change, the lifting suddenly of liquid level in the pond or temperature, at this moment, lifting by a relatively large margin can take place in gaseous pressure in the interior pond of short period of time, and this fluctuation of gaseous pressure in the pond can influence the steady running of emission-control equipment.
The objective of the invention is to overcome the problems referred to above in the enclosure method of sewage lagoon in the prior art, a kind of steadily sewage lagoon enclosure method of fixed running of sewage lagoon normal running and sewage lagoon combustion gas treatment unit that guarantees is provided.
The inventive method is to improve the sealing mode of existing sewage lagoon, this enclosure method comprises common pond face securing cover plate, at cover plate one end bleed ports is installed, gaseous pressure and gas flow condition porthole in the other end relative with bleed ports installed the pond, and standby inlet mouth; In the cover plate one or both ends or uniform distribution the water seal elbow is installed.
For the sewage lagoon that operational unit is arranged, removable cover is installed near operational unit, i.e. porthole or access hole do not have the sewage lagoon of operational unit, can porthole or access hole be set the cover plate appropriate position yet.
After taking enclosure method of the present invention, can guarantee to seal sewage lagoon when induced draft fan is operated, observe effectively and interior gas flow situation of equalizing tank and pressure, also can regulate the concentration of pollutent in the combustion gas effectively, avoid abnormal conditions and burst accident disadvantageous effect effectively, guaranteed the normal running of sewage lagoon and the steady running of emission-control equipment the device operation.
Description of drawings
Fig. 1 is the synoptic diagram of sewage lagoon enclosure method of the present invention when being used for the refinery oil trap, mainly comprise pond face securing cover plate 2, bleed ports 1 at cover plate one end, with the pond of the bleed ports 1 relative the other end in gaseous pressure and gas flow condition porthole 4, and standby inlet mouth 3, and water seal elbow 5 etc.
Embodiment
Further specify method of the present invention and effect below in conjunction with accompanying drawing.
Sewage lagoon described in the enclosure method of the present invention can be various types of sewage treatment facilities, as water quality regulation pond, oil trap, flotation cell, biochemical aeration tank etc.The securing cover plate 2 of pond face is selected normally used cement plate, plastic plate, asbestos plate, glass epoxy etc. for use, according to whether planting flowers and plants on the cover plate, miscellaneous equipment is installed, whether personnel's definite cover sheet thickness (intensity) such as walk being arranged.End at securing cover plate 2 is installed bleed ports 1, and bleed ports 1 can be one or more arranged side by side, and a plurality of bleed ports arranged side by side are connected to induced draft fan after being aggregated into a Trunk Line; Bleed ports 1 can be square, circular or other shape, adopts materials such as metal, plastics, glass reinforced plastic; Bleed ports 1 size is distributed tolerance according to sewage lagoon and is determined that the Pollutant levels in the introducing air dilution waste gas in the pond also should be considered the air capacity of introducing if desired.
On the securing cover plate 2 of the other end relative with bleed ports 1, gaseous pressure and gas flow condition porthole 4 in the pond is installed, and standby inlet mouth 3, gas flow situation porthole 4 also can be arranged on the standby inlet mouth 3.Porthole 4 and inlet mouth 3 can be square, circular or other shape, adopt materials such as metal, plastics, glass reinforced plastic, preferably are equipped with regulated valve.Porthole 4 sizes are difficult for excessive, and equivalent diameter (being scaled circular diameter of the same area) is that 10～100mm is suitable.When induced draft fan moved, the existence of porthole 4 helped forming uniform negative pressure state in the pond, promotes emission gases flowing to bleed ports.If whether gas flow situation in the claire can judge whether to have formed stable gas flow by the perception of hanging paper slip, hand at porthole, and have little air to enter in the pond by porthole in the pond; If truly have little air stably to enter in the pond, illustrate to be micro-vacuum state in the pond by porthole.Standby inlet mouth 3 can be one or more, and the equivalent diameter of single inlet mouth can be got 10～400mm, and whether its variable valve is opened or open several, and the air capacity of Yin Ruing is determined as required.
The present invention installs removable cover 7 near operational unit 8.Preferably select little, the anticorrosives of weight such as plank, plastic plate for use, and by take in sail slit between cover plate and the securing cover plate of materials such as rubber pad, porous plastics; Removable cover 7 is unsuitable excessive, and its suitable size and light source is daylight or light, and light is straight line or disperses, and apart from what being etc. factor is relevant for cover plate and liquid level, is enough in the claire situation and is advisable but enter light in the pond after opening with removable cover 7.Removable cover can be opened and closed by artificial, electric power or machinery.
The present invention installs water seal elbow 5 on securing cover plate 2, be used to guarantee under the abnormal conditions the relatively stable of gaseous pressure in the sewage lagoon.Water seal elbow 5 can be one, also can be a plurality of, its size, number how much, relevant with range of temperature in sewage lagoon area, sewage lagoon level fluctuation amplitude, rainstorm weather cause in the unit time the pond, can calculate with reference to " respiratory capacity " of relevant tank body when the liquid level change or during rainstorm weather, and determine water seal elbow area and water seal elbow quantity according to this.Water seal elbow 5 is advisable with 180 ° of tube turns, also can be the oblique elbow between 140 °～180 °; Can adopt metal, plastics, glass reinforced plastic material.Pool area is less, and water seal elbow 5 can be installed in the relative the other end of bleed ports 1, and pool area is bigger, and water seal elbow 5 on the cover board uniform distribution is installed; Water sealed tank 6 waters can be process waters, also can be comparatively purified sewage, and liquid level is controlled to be 5～50mm water column.The water seal water can have independently water supply and sewage pipeline, also can enter in the sewage lagoon; Water seal water can adopt intermittent water flooding or water filling continuously, preferably adopts continuous water filling and keeps certain flow, to keep the water seal liquid level and to prevent sharp freezing from case of necessity antifreezing measures will be arranged.Water seal is set can be implemented in the stable purpose of maintenance sewage lagoon internal pressure under the abnormal conditions, guarantee the steady flow of liquid in the pond and stablizing of supporting gas treatment equipment processing tolerance, guarantee its normal operation.For example, because of gas phase temperature in the reason ponds such as heavy rain sharply reduces, pressure descends, and outside air can in time enter in the pond by the water seal elbow; If because of reasons such as the sun is exposed to the sun, sewage quantity increases suddenly increase the pond internal pressure suddenly, portion gas can discharge by the water seal elbow.
The present invention has the following advantages:
(1) the gas flow porthole is set and can monitors gas flow state in the sewage lagoon at any time, preliminary understanding enters the stable case of gas treatment equipment tolerance.
(2) standby inlet mouth is set and under the abnormal operation condition, regulates the tolerance and the concentration that enter gas treatment equipment, guarantee the steady running of gas treatment equipment.
(3) sealing that removable cover can be realized sewage lagoon on the one hand is set, can prevents other security incident on the other hand, and very easy to use.
(4) the water seal elbow being set can be under sudden condition, and the pressure in the equalizing tank guarantees the normal running of sewage lagoon liquid-flow, and the normal steady running of gas treatment equipment.
Claims (8)
1, a kind of enclosure method of sewage lagoon, comprise pond face securing cover plate, bleed ports in the installation of cover plate one end, it is characterized in that gaseous pressure and gas flow condition porthole and standby inlet mouth in the other end relative with bleed ports installed the pond, in the cover plate one or both ends or uniform distribution the water seal elbow is installed.
2,, it is characterized in that removable cover being installed near operational unit for the sewage lagoon that operational unit is arranged according to the described sewage lagoon enclosure method of claim 1.
3,, it is characterized in that the securing cover plate of described pond face is selected cement plate, plastic plate, asbestos plate or glass epoxy for use according to the described sewage lagoon enclosure method of claim 1; Bleed ports is square, circular or other shape, adopts metal, plastics or glass reinforced plastic material.
4,, it is characterized in that described gas flow situation porthole and inlet mouth are square, circular or other shape, adopt metal, plastics or glass reinforced plastic material according to the described sewage lagoon enclosure method of claim 1; The size of porthole is calculated as 10～100mm with equivalent diameter; Standby inlet mouth is one or more, and the equivalent diameter of single inlet mouth is 10～400mm.
5, according to the described sewage lagoon enclosure method of claim 1, the described water seal elbow that it is characterized in that is oblique elbow or the tube turn between 140 °～180 °; Adopt metal, plastics or glass reinforced plastic material.
6, according to claim 1 or 5 described sewage lagoon enclosure methods, the water seal height that it is characterized in that described water seal elbow is 5～50mm.
7,, it is characterized in that the water seal water of described water seal elbow has independently water supply and sewage pipeline, or enter in the sewage lagoon that water seal water adopts intermittent water flooding or water filling continuously according to claim 1 or 5 described sewage lagoon enclosure methods.
8, according to the described sewage lagoon enclosure method of claim 7, the water seal water that it is characterized in that described water seal elbow comes from the process water or the sewage of cleaning comparatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021094144A CN1176025C (en) | 2002-04-04 | 2002-04-04 | Cesspool sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021094144A CN1176025C (en) | 2002-04-04 | 2002-04-04 | Cesspool sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1448341A true CN1448341A (en) | 2003-10-15 |
| CN1176025C CN1176025C (en) | 2004-11-17 |
Family
ID=28680417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021094144A Expired - Lifetime CN1176025C (en) | 2002-04-04 | 2002-04-04 | Cesspool sealing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176025C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056696A (en) * | 2015-07-15 | 2015-11-18 | 北京中海京诚检测技术有限公司 | Waste gas exhaust control system for sewage gathering and transportation of petroleum refining industry |
-
2002
- 2002-04-04 CN CNB021094144A patent/CN1176025C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056696A (en) * | 2015-07-15 | 2015-11-18 | 北京中海京诚检测技术有限公司 | Waste gas exhaust control system for sewage gathering and transportation of petroleum refining industry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176025C (en) | 2004-11-17 |
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