CN107158849A - A kind of torch gas water washing device - Google Patents
A kind of torch gas water washing device Download PDFInfo
- Publication number
- CN107158849A CN107158849A CN201610131341.1A CN201610131341A CN107158849A CN 107158849 A CN107158849 A CN 107158849A CN 201610131341 A CN201610131341 A CN 201610131341A CN 107158849 A CN107158849 A CN 107158849A
- Authority
- CN
- China
- Prior art keywords
- water
- vertical
- water washing
- torch gas
- washing tank
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Abstract
The invention discloses a kind of torch gas water washing device, mainly it is made up of water supply system, water wash system and overflow system, water supply system at the top of water wash system by pipeline with being connected, and overflow system is connected by pipeline with the bottom of water wash system；Wherein, water wash system is main to be made up of spray distributor, torch gas standpipe, vertical water washing tank and sealing water body, distributor, torch gas standpipe and sealing water body are sprayed in vertical water cleaning of evaporator, distributor is sprayed at the top of vertical water washing tank, seal water body and be located at vertical water washing tank bottom, torch gas standpipe is above sealing water body below spray distributor, and torch gas standpipe upper end is fixed on vertical water washing tank tank skin, under the water seal liquid level of torch gas lower riser end insertion sealing water body.The device can both realize the automatic recovery of torch gas, prevent tempering, and can more thoroughly remove the purpose of dust in torch gas, impurity, improve the safety and reliability of gas holder operation.
Description
Technical field
The invention belongs to the discharge of petrochemical enterprise imflammable gas and recycling field, specifically, it is related to one
Plant torch gas water washing device.
Background technology
Petrochemical enterprise imflammable gas is discharged and recovery system is the important of guarantee process unit safety in production
Measure and environmental protection and energy saving measure, when process unit is normally produced, torch gas enters into gas holder facility as far as possible
Row is reclaimed, then used as factory's fuel gas after delivering to desulfurizer desulfurization through compressor, realizes energy-saving and emission-reduction
Purpose；When under process unit accident conditions, the torch gas of discharge be unsatisfactory for gas holder air inlet requirement (temperature,
Pressure, flow transfinite) when, it is vented after draining into full factory's torch facility burning.
Contain dust, impurity in the torch gas of the devices such as coking discharge, if being directly discharged into gas holder facility, no
Sealing (dry type or wet type) only between damage gas holder and piston (or movable caping), will cause sealing for a long time
, there is potential safety hazard, and greatly reduce the service life of gas holder in breakage, gas holder gas leakage；Simultaneously will be
The a large amount of sediments of gas holder bottom deposit, (gravity flow enters condensation water and returned for the recovery for the condensation water being unfavorable in gas holder
Closed cans), need regular purge condensate drain pipeline to prevent blocking, and need to remove in the shut-down (breakdown) mainteance stage gas holder bottom and
A large amount of greasy filth in condensate drain pipeline.
Mainly there are two kinds in petrochemical enterprise torch gas dust removal method at present, one is to enter gas holder master in torch gas
Two set filters are set on pipeline；Two be to set a set filter (band backwashing system).Method one sets two
Pipe filter group, the using and the reserved need to periodically switch cleaning filter element, bring many to operation and maintenance
Inconvenience；Method two sets one set filter+backwashing system, because process unit emptying gas component is extremely multiple
It is miscellaneous, and dust, impurity content are larger sometimes, and backwashing system is difficult to clean up filter element；With
Upper two methods find that gas holder bottom also has substantial amounts of sediment in use, and using effect is undesirable,
It is unfavorable for safety in production, is not easy to regular job and maintenance.
The content of the invention
In order to which the Operation and Maintenance for overcoming existing torch gas dedusting technology to exist is inconvenient, filter element is difficult to clean
The technical problem such as clean, the invention provides a kind of torch gas water washing device.
The torch gas water washing device that the present invention is provided mainly is made up of water supply system, water wash system and overflow system,
Water supply system at the top of water wash system by pipeline with being connected, and overflow system passes through pipeline and water wash system
Bottom is connected；Wherein, water wash system mainly by spray distributor, torch gas standpipe, vertical water washing tank and
Water body composition is sealed, spray distributor, torch gas standpipe and sealing water body are in vertical water cleaning of evaporator, spray
Distributor is drenched at the top of vertical water washing tank, and sealing water body is located at vertical water washing tank bottom, and torch gas standpipe is set
The sealing water body top below spray distributor, torch gas standpipe upper end is fixed on vertical water washing tank tank skin,
Under the water seal liquid level of torch gas lower riser end insertion sealing water body.
Described spray distributor is main to be made up of a supervisor and 3~10 horizontal branch pipees, and supervisor opens upper end
Mouth lower end closed, supervisor is fixed on the top center of vertical water washing tank and is connected with water supply system in upper end, often
The root horizontal branch pipe one end open other end is closed, every horizontal branch pipe length diameter all same；Every level branch
One end of tube opening is radially connected along supervisor in horadiam with supervisor lower end, all horizontal branch pipees
It is respectively positioned in same plane and is uniformly distributed centered on supervisor, supervisor is perpendicular to plane where horizontal branch pipe；
Account for and be axially provided with along horizontal branch pipe in the total tube wall one-third of the area of horizontal branch pipe immediately below every horizontal branch pipe
The equally distributed sieve aperture of 3~9 rows, sieve diameter is 1~5mm.
Described torch gas standpipe is mainly made up of one section of horizontal pipeline section and one section of vertical pipeline section, vertical pipeline section
Upper end connects horizontal pipeline section, and the lower end edge tube wall circumferencial direction of vertical pipeline section is provided with equally distributed circular hole, edge
Vertical pipeline section is axially provided with the equally distributed dentation bar shaped led to pipes intersection on the lower section tube wall of circular hole
Hole；One end of the horizontal pipeline section of torch gas standpipe be fixed on vertical water washing tank tank skin and with vertical water washing tank outer wall
The air inlet pipe of upper setting is connected, under the water seal liquid level of the vertical pipeline section lower end insertion sealing water body of torch gas standpipe,
Circular hole on the tube wall of vertical pipeline section lower end is not completely under water seal liquid level.Described circular hole and bar hole mainly may be used
To avoid because sealing water fluctuation causes the pulse type emission of torch gas.
The water supply system is main to be made up of water inlet pipe, bypass restriction orifice, inlet self-control valve and outlet pipe,
Bypass restriction orifice in parallel with internally piloted valve, latter termination water inlet pipe in parallel, other end connected water outlet pipe, outlet pipe
It is connected with spray distributor supervisor upper end.
Described overflow system is mainly made up of U-shaped overflow pipe, one end of U-shaped overflow pipe by pipeline with it is vertical
The sealing water body of washing pot bottom is connected, and communicating position is located at below torch gas lower riser end, vertical washing
On tank skin more than pot bottom head bend line, the other end of U-shaped overflow pipe with from vertical water washing tank bottom and with
The Closed Drain pipeline that vertical water washing tank is connected is connected.
Spray distributor horizontal branch pipe top, vertical water washing tank top head bend line in described vertical water washing tank
Connection blast pipe on the outside of the tank skin of lower section, blast pipe inside vertical water washing tank with being connected.
When torch gas cumulative stress from process unit reaches water seal height setting value, the automatic one's water breaks of torch gas
It is honored as a queen into vertical water washing tank, is fully contacted with the shower water at the top of vertical water washing tank, by the powder in torch gas
Dirt, impurity are dissolved into fresh water, and the sewage containing dust, impurity etc. is closed to drain into the closed receipts of oil-polluted water
Collecting system.
Compared with prior art, the present invention can both realize the automatic recovery of torch gas, prevent tempering, and
Can more thoroughly remove the purpose of dust in torch gas, impurity, improve gas holder operation security and can
By property.The method technological process and device configuration are succinct, easy to operate, are suitable for petrochemical enterprise torch
Water seal and dedusting that gas enters before gas holder.Specific advantage is as follows：
1) conventional filtration facility is substituted using water washing device, torch gas circulation area is increased, makes torch gas
Fully contacted with shower water, can make torch gas dust contained in torch gas is thoroughly removed before entering gas holder and
Impurity；
2) water washing device realizes automatically controlling, preventing tempering and torch gas from washing a variety of for flare gas recovery
Function, saves equipment investment, with certain economy；
3) flare gas recovery system, the safety and reliability of gas holder facility operation are improved；
4) technological process and device configuration are succinct, and automaticity is high, and operation and maintenance is convenient, practical.
Brief description of the drawings
Fig. 1 is the structural representation of the torch gas water washing device of the present invention；
Fig. 2 is the A of spray distributor in Fig. 1 to structural representation；
B-B direction (horizontal branch pipe axial direction) structural representation of horizontal branch pipe in Fig. 3 Fig. 2；
Fig. 4 for Fig. 3 C to structural representation；
Fig. 5 is the structural representation of torch gas lower riser end in Fig. 1.
In figure：1- water inlet pipes, 2- inlet self-control valves, 3- bypass restriction orifices, 4- outlet pipes, 5- blast pipes,
6- sprays distributor, and 61- is responsible for, 62- horizontal branch pipees, 63- sieve apertures, 7- air inlet pipe, 8- torch gas standpipes,
81- circular holes, 82- dentation bar holes, the vertical water washing tanks of 9-, 10- sealing water bodys, 11- blowdown internally piloted valves, 12-
Closed Drain pipe, 13-U shape overflow pipes, 14-.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the torch gas water washing device that provides of the present invention it is main by water supply system, water wash system and
Overflow system is constituted.
Water supply system is main to be made up of water inlet pipe 1, bypass restriction orifice 3, inlet self-control valve 2 and outlet pipe 4,
Bypass restriction orifice 3 in parallel with inlet self-control valve 2, latter termination water inlet pipe 1 in parallel, other end connected water outlet pipe
4, the upper end of supervisor 61 (see Fig. 2) of the outlet pipe 4 with spraying distributor 6 is connected.
Water wash system is main by spray distributor 6, torch gas standpipe 8, vertical water washing tank 9 and sealing water body 10
Composition, spray distributor 6, torch gas standpipe 8 and sealing water body 10 are in vertical water cleaning of evaporator, spray
Distributor 6 is at the top of vertical water washing tank, and sealing water body 10 is located at vertical water washing tank bottom, torch gas standpipe
8 located at the top of 6 lower section sealing water body of spray distributor 9, and vertical water washing tank is fixed in the upper end of torch gas standpipe 8
On 9 tank skins, under the water seal liquid level of the lower end of torch gas standpipe 8 insertion sealing water body 10.
It is made up of as shown in Fig. 2 spray distributor 6 is main 61 and 6 horizontal branch pipees 62 of a supervisor,
The quantity of horizontal branch pipe 61 can be chosen between 3~10, be responsible for 61 upper end open lower end closeds, supervisor
61 upper ends are fixed on the top center of vertical water washing tank 9 and are connected with the outlet pipe 4 of water supply system, every
The one end open other end of horizontal branch pipe 62 is closed, the every length diameter all same of horizontal branch pipe 62；Every water
One end that flat branch pipe 62 is open radially is connected along supervisor in horadiam with 61 lower ends of supervisor, owns
Horizontal branch pipe 62 be respectively positioned in same plane and be uniformly distributed centered on being responsible for 61, supervisor 61 perpendicular to
The place plane of horizontal branch pipe 62；Edge on 1/3rd (see Fig. 3) tube wall immediately below every horizontal branch pipe 62
Horizontal branch pipe is axially provided with the equally distributed sieve aperture of 5 rows (as shown in Figure 4), and certainly as needed, sieve aperture can
Selected between 3~9 rows, sieve diameter is 1~5mm.
As shown in figure 1, described torch gas standpipe 8 is main by one section of horizontal pipeline section and one section of vertical pipeline section group
Into the upper end of vertical pipeline section connects horizontal pipeline section, and the lower end edge tube wall circumferencial direction of vertical pipeline section is provided with uniformly
The circular hole 81 (see Fig. 5) of distribution, is axially provided with and pipe end along vertical pipeline section on the lower section tube wall of circular hole 81
The equally distributed dentation bar hole 82 connected (see Fig. 5)；One end of the horizontal pipeline section of torch gas standpipe is fixed
In being connected on the vertical tank skin of water washing tank 9 and with air inlet pipe 7, the vertical pipeline section lower end insertion of torch gas standpipe is close
Under the water seal liquid level of water shutoff body 10, the circular hole 81 on the tube wall of vertical pipeline section lower end is not completely under water seal liquid level.
Described circular hole 81 and dentation bar hole 82 can be mainly avoided because the sealing fluctuation of water body 10 causes torch gas
Pulse type emission.
As shown in figure 1, described overflow system is mainly made up of U-shaped overflow pipe 13, U-shaped overflow pipe 13
One end be connected by pipeline with the sealing water body 10 of vertical water washing tank bottom, communicating position be located at torch gas
On tank skin below lower riser end, more than vertical water washing tank bottom bulkhead tangent line, U-shaped overflow pipe 13 it is another
End is connected with from the vertical bottom of water washing tank 9 and with the Closed Drain pipe 12 that vertical water washing tank 9 is connected.
As shown in figure 1, spray distributor 6 horizontal branch pipe top, vertical washing in described vertical water washing tank
Inside connection blast pipe 5 on the outside of tank skin below the top head bend line of tank 9, blast pipe 5 and vertical water washing tank 9
It is connected.
In the device shown in Fig. 1：
Spray height of the horizontal branch pipe of distributor 6 apart from the porch of air inlet pipe 7 and preferably take 600~2000mm, it is excellent
Select 1000~1200mm；Height of the horizontal branch pipe at exhaust port for spraying distributor 6 preferably take 200~
1000mm, preferably 500~600mm；
The actually active water seal height of torch gas be 400mm, its effective water seal water meet torch gas standpipe 3m with
The filling amount of upper height (h2 >=3000mm), water seal liquid level is automatically controlled by U-shaped overflow pipe 13；It is actual
Effective water seal height is the height for the pipeline section that the lower end circular hole more than 81 of torch gas standpipe 3 is submerged in sealing water body 10
Degree, the actually active water seal height is generally 300~600mm；
The area that the lower end of torch gas standpipe 8 enters in sealing water body 10 is not less than the sectional area of torch gas standpipe 8,
The lower end of torch gas standpipe 8 is 500~1000mm apart from the distance of the vertical bottom bulkhead tangent line of water washing tank 9.
The radial section product that torch gas is flowed up in vertical water washing tank 9 is no less than torch gas standpipe cross section
Long-pending 3 times；The height of the gas-phase space of the vertical top of 9 interior sealing water body of water washing tank 10 is no less than vertical water
The internal diameter of cleaning of evaporator 9；
Water supply system is provided with the running water facility of continuum micromeehanics, and continuum micromeehanics are controlled using bypass restriction orifice 3；
Overflow system is provided with the running water facility of continuous drainage, using the gravity flow mode of U-shaped overflow pipe 13, U-shaped overflow
The gravity flow ability of pipe 13 is no less than 2 times of continuum micromeehanics amount.
The course of work of the present invention is as follows：
The torch gas of process unit discharge breaks through the water seal of sealing water body 10 through air inlet pipe 7, torch gas standpipe 8
Enter the gas-phase space of vertical water cleaning of evaporator 9 afterwards, torch gas and the shower water from spray distributor 6 fully connect
Touch, remove contained dust and impurity, then by the row of torch gas blast pipe 5 downstream gas holder facility.Sealing
The water seal liquid level of water body 10 is controlled by the overflow of U-shaped overflow pipe 13, and the oil-polluted water that overflow goes out is through closed
Delivery pipe 12 is discharged.
In order to realize automatically controlling for torch gas water washing device of the present invention, the present invention can also set water seal liquid level
Two position alarm interlock：
1) continuum micromeehanics of vertical water washing tank 9 are controlled using the bypass restriction orifice 3 of water supply system, normal behaviour
Fresh water is supplemented by bypassing restriction orifice 3 when making, when the liquid level of the vertical interior sealing water body 10 of water washing tank 9 is low
When water seal liquid level is set, the inlet self-control valve 2 that low liquid level warning device is automatically turned in water supply system is carried out
Automatic water supplement, meets overflow and the water requirement of spray；It is automatic to close when water seal liquid level reaches setting value
Inlet self-control valve 2.
2) water seal liquid level in vertical water washing tank 9 is caused to be increased beyond when unusual service condition occurs in U-shaped overflow pipe 13
When setting level value, the blowdown internally piloted valve on Closed Drain pipe 12 is opened in the automatic interlock of high liquid level warning device
11, until liquid level is automatic when being down to setting value to close blowdown internally piloted valve 11.
For the ease of maintenance, torch gas water washing device of the invention can also set nitrogen to purge facility and maintenance
Sewage disposal facility：
During checking maintenance, the valve that can be purged by opening nitrogen on facility realizes the nitrogen of vertical water washing tank
Air-blowing is swept.Vertical water washing tank complete nitrogen purging work after, can by overhaul sewage disposal facility 13 exclude it is vertical
Rust in water washing tank is miscellaneous and sediment.
Daily Round Check and maintenance for convenience, also can be set on U-shaped overflow pipe 13 and Closed Drain pipe 12
Visor.
The torch gas water washing device of the present invention both can guarantee that the abundant contact of shower water and torch gas, and can realize
" no dead angle " covering of fresh Water spray in vertical water washing tank, it is ensured that the thorough dedusting of torch gas, Er Qiejin
It is likely to reduced the consumption of fresh water.
Claims (5)
1. a kind of torch gas water washing device, is mainly made up of water supply system, water wash system and overflow system, gives
Water system by pipeline with being connected at the top of water wash system, the bottom that overflow system passes through pipeline and water wash system
Portion is connected；It is characterized in that：The water wash system it is main by spray distributor, it is torch gas standpipe, vertical
Water washing tank and sealing water body composition, spray distributor, torch gas standpipe and sealing water body are washed located at vertical water
In tank, spray distributor is at the top of vertical water washing tank, and sealing water body is located at vertical water washing tank bottom, torch
Gas standpipe is above sealing water body below spray distributor, and vertical water washing tank is fixed in torch gas standpipe upper end
On tank skin, under the water seal liquid level of torch gas lower riser end insertion sealing water body.
2. water washing device according to claim 1, it is characterised in that：Described spray distributor is main
It is made up of a supervisor and 3~10 horizontal branch pipees, is responsible for upper end open lower end closed, supervisor fixes upper end
In vertical water washing tank top center and be connected with water supply system, the every horizontal branch pipe one end open other end
Closing, every horizontal branch pipe length diameter all same；One end of every horizontal branch pipe opening is along supervisor's radial direction
It is connected in horadiam with supervisor lower end, all horizontal branch pipees are respectively positioned in same plane and to be responsible for
Centered on be uniformly distributed, supervisor's plane where the horizontal branch pipe；Level is accounted for immediately below every horizontal branch pipe
The equally distributed sieve aperture of 3~9 rows is axially provided with along horizontal branch pipe in the total tube wall one-third of the area of branch pipe.
3. water washing device according to claim 1, it is characterised in that：Described torch gas standpipe is main
It is made up of one section of horizontal pipeline section and one section of vertical pipeline section, the upper end of vertical pipeline section connects horizontal pipeline section, VERTICAL TUBE
The lower end edge tube wall circumferencial direction of section is provided with equally distributed circular hole, along vertical pipeline section axially in the lower section of circular hole
The equally distributed dentation bar hole led to pipes intersection is provided with tube wall；The one of the horizontal pipeline section of torch gas standpipe
End is fixed on vertical water washing tank tank skin and is connected with the air inlet pipe set on vertical water washing tank outer wall, torch
Under the water seal liquid level of the vertical pipeline section lower end insertion sealing water body of gas standpipe, the circular hole on the tube wall of vertical pipeline section lower end
Completely not under water seal liquid level.
4. water washing device according to claim 2, it is characterised in that：The water supply system is main by entering
Water pipe, bypass restriction orifice, inlet self-control valve and outlet pipe composition, bypass restriction orifice are in parallel with internally piloted valve,
Latter termination water inlet pipe in parallel, other end connected water outlet pipe, outlet pipe is connected with spray distributor supervisor upper end.
5. water washing device according to claim 1, it is characterised in that：Described overflow system it is main by
U-shaped overflow pipe is constituted, and one end of U-shaped overflow pipe is connected by pipeline with the sealing water body of vertical water washing tank bottom
Logical, communicating position is located at below torch gas lower riser end, tank skin more than vertical water washing tank bottom bulkhead tangent line
On, the closed row that the other end of U-shaped overflow pipe is connected with from vertical water washing tank bottom and with vertical water washing tank
Pipeline is put to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131341.1A CN107158849A (en) | 2016-03-08 | 2016-03-08 | A kind of torch gas water washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131341.1A CN107158849A (en) | 2016-03-08 | 2016-03-08 | A kind of torch gas water washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107158849A true CN107158849A (en) | 2017-09-15 |
Family
ID=59848646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610131341.1A Pending CN107158849A (en) | 2016-03-08 | 2016-03-08 | A kind of torch gas water washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107158849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11452966B2 (en) * | 2020-11-25 | 2022-09-27 | Saudi Arabian Oil Company | Industrial air cleaner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338897A (en) * | 2008-08-12 | 2009-01-07 | 中国船舶重工集团公司第七一一研究所 | Water seal structure for torch system |
| CN203379878U (en) * | 2013-07-04 | 2014-01-08 | 中石化洛阳工程有限公司 | Radial fluid distributor |
| CN103551009A (en) * | 2013-11-20 | 2014-02-05 | 天津渤海化工有限责任公司天津碱厂 | Organic matter recovery device in torch pipeline |
| CN103566834A (en) * | 2012-07-30 | 2014-02-12 | 中国石油化工集团公司 | Gas-phase feeding diffuser |
| CN203448077U (en) * | 2013-07-04 | 2014-02-26 | 中石化洛阳工程有限公司 | Concentric round fluid distributor |
-
2016
- 2016-03-08 CN CN201610131341.1A patent/CN107158849A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338897A (en) * | 2008-08-12 | 2009-01-07 | 中国船舶重工集团公司第七一一研究所 | Water seal structure for torch system |
| CN103566834A (en) * | 2012-07-30 | 2014-02-12 | 中国石油化工集团公司 | Gas-phase feeding diffuser |
| CN203379878U (en) * | 2013-07-04 | 2014-01-08 | 中石化洛阳工程有限公司 | Radial fluid distributor |
| CN203448077U (en) * | 2013-07-04 | 2014-02-26 | 中石化洛阳工程有限公司 | Concentric round fluid distributor |
| CN103551009A (en) * | 2013-11-20 | 2014-02-05 | 天津渤海化工有限责任公司天津碱厂 | Organic matter recovery device in torch pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11452966B2 (en) * | 2020-11-25 | 2022-09-27 | Saudi Arabian Oil Company | Industrial air cleaner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209423325U (en) | A kind of high-efficiency spray tower | |
| CN102011133A (en) | Circulating pickling device for pipeline | |
| CN106823742A (en) | A kind of desulfurization and dust-removal method of double circulation desulphurization and dust-removing device and flue gas | |
| CN207253968U (en) | One kind is exempted to tear the regenerated gas filter of filter core open | |
| CN201952495U (en) | Circular pickler of pipes | |
| CN205095606U (en) | Spiral sprays waste gas absorption tower | |
| CN107158849A (en) | A kind of torch gas water washing device | |
| CN206045670U (en) | A kind of water seal water washing device of fuel gas recovery system | |
| CN205965363U (en) | Combustible gas recovery system's water seal water washing device | |
| CN209438168U (en) | A kind of sodium alkali desulfurization slurry piping filter | |
| CN104403699B (en) | One kind is used for coke oven sample gas pre-processing device | |
| CN204265713U (en) | A kind of for coke oven sample gas pre-processing device | |
| CN210751617U (en) | Automatic back flush filter of sewage strip | |
| CN2432999Y (en) | Upper installed purging type high flow filter | |
| CN203763959U (en) | Filter free from cleaning | |
| CN208389482U (en) | A kind of cyclonic separation dust-laden pre-processing device of exhaust gas containing coating cloud | |
| CN210584449U (en) | Flue gas desulfurization device | |
| CN113082884A (en) | Flue gas dust removal desulfurization tower and desulfurization method | |
| CN214635085U (en) | Decoking dust collector and high temperature covering machine thereof | |
| CN205856399U (en) | A kind of filter | |
| CN201587935U (en) | Purifying system of straw gasification unit | |
| CN110448951A (en) | A kind of submarine discharge automatic backwashing filter | |
| CN204979827U (en) | Exempt from to clear up liquid tank | |
| CN220443516U (en) | Water washing tower convenient for self-cleaning | |
| CN209688527U (en) | One kind being used for hydrogen gas system self-draining arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
|
| RJ01 | Rejection of invention patent application after publication |