CN103949138B - A kind of stop flue gas to pour in down a chimney absorption tower and application - Google Patents
A kind of stop flue gas to pour in down a chimney absorption tower and application Download PDFInfo
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- CN103949138B CN103949138B CN201410095210.3A CN201410095210A CN103949138B CN 103949138 B CN103949138 B CN 103949138B CN 201410095210 A CN201410095210 A CN 201410095210A CN 103949138 B CN103949138 B CN 103949138B
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- absorption tower
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- flue gas
- chimney
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Abstract
The present invention relates to a kind of absorption tower stoping flue gas to pour in down a chimney, described absorption tower comprises absorption tower body, stores slurries section, absorbent circulation line, absorption tower return line interface, smoke inlet and exhanst gas outlet, this external connection with storage slurries section of described absorption tower arranges an absorption tower slurries header device, and described absorption tower slurries header device comprises header device body, backflow slurry pipe line interface, gas vent and grout outlet pipeline joint.Absorption tower of the present invention arranges absorption tower slurries header device, this header device can effectively stop the flue gas in absorption tower to pour in down a chimney in slurries return pipeline, thus avoid the generation of pollutant leakage problem in absorption tower, and this absorption tower is with low cost, reduce the production cost of equipment, operation is convenient, not easily breaks down, it is convenient to run, and can be widely used in the desulfurization of flue gas.
Description
Technical field
The invention belongs to environmental technology field, relate to fume desulfurating absorption tower, especially a kind of stop flue gas to pour in down a chimney absorption tower and application.
Background technology
Administer flue gas desulfurization field in atmosphere pollution, absorption tower, as nucleus equipment, is widely used in Wet Flue Gas Desulfurization Technology.Absorption tower bottom storage has desulfurization slurry, and top is the reaction zone of flue gas, is filled with flue gas, and operating pressure is 2.0-3.0kPa.In desulphurization system, several pipelines reclaiming slurries are had to return to absorption tower, to meet the requirement to water circulation use in system.Like this, absorption tower will have several slurries return port.The period that slurries return port on absorption tower is stopped transport in intermittence is emptying slurries, and the situation that this just causes flue gas to pour in down a chimney occurs.Because absorption tower is operation under positive pressure equipment, gas phase is run gauge pressure and is about 2.0-3.0kPa, when return line is out of service, owing to no longer storing slurries in pipeline, flue gas in tower can reflux with pipeline, flowed out outside desulphurization system by the equipment be connected with pipeline, cause the leakage of pollutant in flue gas.
In the development of desulfur technology, designer improves this reflux type, takes in liquid level in the mode of under shed.Slurry reflux pipe is entered the interface on absorption tower, below the liquid level being arranged on absorption tower prime cement liquid, rely on the static pressure of slurries, stop gas in tower to reserve.But also there is operating problem in the method: due to slurry pipe Louis deposition, therefore stop transport time need blowdown piping, when emptying return line, can siphonage be there is in this kind of method, by tower higher than the whole sucking-off of the slurries of interface, cause run difficulty.
For this problem, designer enters absorption tower interface at slurry reflux Guan Yuqi and arranges valve and isolate, and on pipeline, arranges venting valve, for emptying liquid in pipe.
This kind of method can solve the problem that flue gas pours in down a chimney, but because valve installation position is higher, for easy to operate, this part valve need be designed to electrically operated valve or operated pneumatic valve, this kind of valve cost is higher, and as mentioned before, Shang Youshuo road, every platform absorption tower return line, this just causes this formula investing larger.
By retrieval, not yet find the patent publication us relevant to patent application of the present invention.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of absorption tower stoping flue gas to pour in down a chimney is provided, this device utilizes fluid mechanics principle work, using method is easy, plant investment is low, preferably resolve produced problem in the slurry reflux of absorption tower, this absorption tower can be applied to the desulfurization of flue gas.
The object of the invention is to be achieved through the following technical solutions:
A kind of absorption tower stoping flue gas to pour in down a chimney, described absorption tower comprises absorption tower body, store slurries section, absorbent circulation line, absorption tower return line interface, smoke inlet and exhanst gas outlet, described exhanst gas outlet is communicated on the tower top of absorption tower body or the sidewall on tower top top, described smoke inlet is communicated on the sidewall outside the middle and lower part of absorption tower body, absorbent circulation line is established in absorption tower body between exhanst gas outlet and smoke inlet, be provided with in absorption tower body below described smoke inlet and store slurries section, this storage slurries section is located at intrinsic bottom, absorption tower, outer wall below the liquid level of this absorption tower body is communicated with and is provided with several absorption towers return line interface,
This external connection with storage slurries section of described absorption tower arranges an absorption tower slurries header device, described absorption tower slurries header device comprises header device body, backflow slurry pipe line interface, gas vent and grout outlet pipeline joint, described header device body is hollow, closed casing shape, and the top of this header device body or top outer wall top arrange one or more backflow slurry pipe line interface; The bottom of this header device body or bottom outside wall are communicated with absorption tower body and arrange one or more grout outlet pipeline joint; Top or the top outer wall top of this header device body arrange a gas vent; The backflow slurry pipe line interface of described header device is located at above the operation liquid level of absorption tower body, and the grout outlet pipeline joint of this header device is located at below the operation liquid level of absorption tower body.
And described absorption tower body is vertical reaction tower.
And described header device body comprises from top to bottom square box, cone connection and the bending pipeline that airtight connection is successively arranged, and the bottom of described bending pipeline arranges pulp pipe joint.
The application of absorption tower in flue gas desulfurization that prevention flue gas as above pours in down a chimney.
Advantage of the present invention and good effect are:
On absorption tower, this external connection with storage slurries section arranges an absorption tower slurries header device on absorption tower of the present invention, when absorption tower slurries header device quits work, in absorption tower, slurries can flow in header device and tube connector certainly, fluid-tight is formed to the backflow slurry pipe line interface on header device and exhaust outlet, thus this header device can effectively stop the flue gas in absorption tower to pour in down a chimney in slurries return pipeline, thus avoid the generation of pollutant leakage problem in absorption tower, and this absorption tower is with low cost, reduce the production cost of equipment, operation is convenient, not easily break down, it is convenient to run, the desulfurization of flue gas can be widely used in.
Accompanying drawing explanation
Fig. 1 is the anatomical connectivity schematic diagram on absorption tower of the present invention;
Fig. 2 is the structure enlarged diagram of slurries header device in absorption tower in Fig. 1;
Fig. 3 be Fig. 2 A-A to cross-sectional view.
Detailed description of the invention
For accompanying drawing embodiment, the invention will be further described below, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of absorption tower stoping flue gas to pour in down a chimney, as shown in Figure 1, described absorption tower comprises absorption tower body 3, stores slurries section 10, absorbent circulation line 2, absorption tower return line interface 8, smoke inlet 11 and exhanst gas outlet 1, described absorption tower body can be desulfuration absorbing tower conventional in the art, can be the absorption tower form of prior art, this absorption tower be vertical reaction tower in the present embodiment;
Described exhanst gas outlet is communicated on the tower top of absorption tower body or the sidewall on tower top top, described smoke inlet is communicated on the sidewall outside the middle and lower part of absorption tower body, absorbent circulation line is established in absorption tower body between exhanst gas outlet and smoke inlet, this absorbent circulation line is for carrying absorption slurries, flue gas enters absorption tower from bottom to top, absorbent cyclic absorption slurries enter absorption tower from top to bottom, and gas-liquid two-phase reacts in the body of absorption tower; Be provided with in absorption tower body below described smoke inlet and store slurries section, this storage slurries section is located at intrinsic bottom, absorption tower, the outer wall below the operation liquid level 9 of this absorption tower body is communicated with and is provided with several absorption towers return line interface.
Innovative point of the present invention is:
This external connection with storage slurries section of described absorption tower arranges an absorption tower slurries header device, as shown in Figures 2 and 3, described absorption tower slurries header device comprises header device body 6, backflow slurry pipe line interface 4, gas vent 5 and grout outlet pipeline joint 7, described header device body is hollow, closed casing shape, the top of this header device body or top outer wall top arrange one or more backflow slurry pipe line interface, and this backflow slurry pipe line interface is for connecting in desulphurization system the slurries pipeline needing to transport and return to absorption tower; The bottom of this header device body or bottom outside wall are communicated with absorption tower body and arrange one or more grout outlet pipeline joint, and this grout outlet pipeline joint can be connected by tube connector with absorption tower return line interface and be installed together; Top or the top outer wall top of this header device body arrange a gas vent.
The backflow slurry pipe line interface of described header device is located at above the operation liquid level of absorption tower body, the grout outlet pipeline joint of this header device is located at below the operation liquid level of absorption tower body, those skilled in the art can according to returning absorption tower slurry flow, absorption tower operating pressure, fluid density, header device physical dimension carry out calculating and determine this setting height(from bottom), this setting height(from bottom) can calculate as follows:
When header works, slurry flow is Q
m, the inside and outside liquid level difference formed is Δ h, and external and internal pressure difference is Δ p, according to bernoulli equation, can obtain the working flow rate that can reach under working solution potential difference
The working flow that can reach under this flow velocity can be by
obtain.
In the present embodiment, as shown in Figures 2 and 3, described header device body comprises from top to bottom square box 12, cone connection 13 and the bending pipeline 14 that airtight connection is successively arranged, and the bottom of described bending pipeline arranges a grout outlet pipeline joint.
The operation principle on the absorption tower that the present invention stops flue gas to pour in down a chimney is as follows:
Outer wall below the liquid level on this absorption tower is communicated with and is provided with several absorption towers return line interface, absorption tower outside the return line interface of absorption tower is originally external is provided with an absorption tower slurries header device, the top of this absorption tower slurries header device arranges backflow slurry pipe line interface, be connected with the pipeline of the slurries that need to reflux, the top of this header device arranges gas vent, header device inside can be made to be connected with air by this gas vent; The bottom of this header device arranges pulp pipe joint, and the slurries in header device are flowed in absorption tower.
When absorption tower slurries header device quits work, in absorption tower, slurries can flow in header device certainly, form fluid-tight to the backflow slurry pipe line interface on header device and gas vent, and in maintenance absorption tower, flue gas is unlikely leaks.
When absorption tower slurries header device works, the backflow slurry pipe line of desulphurization system is connected on the backflow slurry pipe line interface at header device top, backflow slurries flow into header device inner buffer, flow into below the operation liquid level in absorption tower by the grout outlet pipeline joint of the bottom of header device simultaneously, header device is provided with gas vent, be connected with air, ensure that in header device, static pressure is local atmospheric pressure.Because slurries have resistance when header device flows to absorption tower, therefore in header, the liquid level of slurries can higher than liquid level in absorption tower, and liquid level difference brings differential static pressure.In header, liquid level reach a certain height, and when reaching liquid level difference Δ h with liquid level in absorption tower, the water inlet in header device and water outlet reach balance.
Claims (4)
1. the absorption tower stoping flue gas to pour in down a chimney, described absorption tower comprises absorption tower body, store slurries section, absorbent circulation line, absorption tower return line interface, smoke inlet and exhanst gas outlet, described exhanst gas outlet is communicated on the tower top of absorption tower body or the sidewall on tower top top, described smoke inlet is communicated on the sidewall outside the middle and lower part of absorption tower body, absorbent circulation line is established in absorption tower body between exhanst gas outlet and smoke inlet, be provided with in absorption tower body below described smoke inlet and store slurries section, this storage slurries section is located at intrinsic bottom, absorption tower, outer wall below the liquid level of this absorption tower body is communicated with and is provided with several absorption towers return line interface, it is characterized in that:
This external connection with storage slurries section of described absorption tower arranges an absorption tower slurries header device, described absorption tower slurries header device comprises header device body, backflow slurry pipe line interface, gas vent and grout outlet pipeline joint, described header device body is hollow, closed casing shape, and the top of this header device body or top outer wall top arrange one or more backflow slurry pipe line interface; The bottom of this header device body or bottom outside wall are communicated with absorption tower body and arrange one or more grout outlet pipeline joint; Top or the top outer wall top of this header device body arrange a gas vent; The backflow slurry pipe line interface of described header device is located at above the operation liquid level of absorption tower body, and the grout outlet pipeline joint of this header device is located at below the operation liquid level of absorption tower body.
2. the prevention flue gas according to claim 1 absorption tower of pouring in down a chimney, is characterized in that: described absorption tower body is vertical reaction tower.
3. the prevention flue gas according to claim 1 and 2 absorption tower of pouring in down a chimney, it is characterized in that: described header device body comprises from top to bottom square box, cone connection and the bending pipeline that airtight connection is successively arranged, and the bottom of described bending pipeline arranges pulp pipe joint.
4. the application of absorption tower in flue gas desulfurization that the prevention flue gas as described in any one of claims 1 to 3 pours in down a chimney.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095210.3A CN103949138B (en) | 2014-03-14 | 2014-03-14 | A kind of stop flue gas to pour in down a chimney absorption tower and application |
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| CN201410095210.3A CN103949138B (en) | 2014-03-14 | 2014-03-14 | A kind of stop flue gas to pour in down a chimney absorption tower and application |
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| CN103949138A CN103949138A (en) | 2014-07-30 |
| CN103949138B true CN103949138B (en) | 2015-08-19 |
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| CN111992172B (en) * | 2020-08-03 | 2022-04-19 | 界首市南都华宇电源有限公司 | Collecting device and collecting method for ammonia water preparation |
| CN114682182A (en) * | 2020-12-28 | 2022-07-01 | 中昊晨光化工研究院有限公司 | Device system and method for producing polymer by gas phase method |
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| JP2774519B2 (en) * | 1988-09-06 | 1998-07-09 | バブコツク日立株式会社 | Wet exhaust gas desulfurization equipment |
| CN101391172A (en) * | 2007-09-21 | 2009-03-25 | 上海智方电力工程有限公司 | Safety device of absorbing tower liquid-level in wet-method flue gas desulfurization system |
| CN201462878U (en) * | 2009-07-14 | 2010-05-12 | 中电投远达环保工程有限公司 | Anti-downdraught outlet flue system of desulfurizing and absorbing tower |
| CN202036911U (en) * | 2011-04-16 | 2011-11-16 | 江苏揽山环境科技有限公司 | Gas-liquid absorbing device adopting continuous overflow of tower bottom slurry pond |
| CN202778265U (en) * | 2012-08-09 | 2013-03-13 | 武汉钢铁(集团)公司 | Improved spray absorption tower for wet flue gas desulfurization |
| CN203816462U (en) * | 2014-03-14 | 2014-09-10 | 航天环境工程有限公司 | Absorption tower for preventing backflow of smoke |
-
2014
- 2014-03-14 CN CN201410095210.3A patent/CN103949138B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2774519B2 (en) * | 1988-09-06 | 1998-07-09 | バブコツク日立株式会社 | Wet exhaust gas desulfurization equipment |
| CN101391172A (en) * | 2007-09-21 | 2009-03-25 | 上海智方电力工程有限公司 | Safety device of absorbing tower liquid-level in wet-method flue gas desulfurization system |
| CN201462878U (en) * | 2009-07-14 | 2010-05-12 | 中电投远达环保工程有限公司 | Anti-downdraught outlet flue system of desulfurizing and absorbing tower |
| CN202036911U (en) * | 2011-04-16 | 2011-11-16 | 江苏揽山环境科技有限公司 | Gas-liquid absorbing device adopting continuous overflow of tower bottom slurry pond |
| CN202778265U (en) * | 2012-08-09 | 2013-03-13 | 武汉钢铁(集团)公司 | Improved spray absorption tower for wet flue gas desulfurization |
| CN203816462U (en) * | 2014-03-14 | 2014-09-10 | 航天环境工程有限公司 | Absorption tower for preventing backflow of smoke |
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| CN103949138A (en) | 2014-07-30 |
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