CN216092961U - Acid mist absorption device of hydrochloric acid storage tank - Google Patents
Acid mist absorption device of hydrochloric acid storage tank Download PDFInfo
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- CN216092961U CN216092961U CN202121656178.3U CN202121656178U CN216092961U CN 216092961 U CN216092961 U CN 216092961U CN 202121656178 U CN202121656178 U CN 202121656178U CN 216092961 U CN216092961 U CN 216092961U
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Abstract
The utility model discloses an acid mist absorption device of a hydrochloric acid storage tank, which comprises a storage tank, wherein the storage tank is provided with an acid mist output port, and the acid mist output port is connected with an acid mist output pipe; the sprayer is provided with an acid mist inlet, a water inlet and a sprayer outlet, the acid mist inlet is communicated with the acid mist output pipe, and the water inlet is connected with a water inlet pipe; the ejector comprises a mixing bin and an output spray pipe; a negative pressure cavity is arranged in the mixing bin, micro negative pressure is formed in the negative pressure cavity, water and acid mist are fully mixed to form acid mist-containing wastewater, and the acid mist-containing wastewater is sprayed out from the outlet of the sprayer; the waste liquid pool is used for receiving the acid mist-containing waste water sprayed out of the outlet of the sprayer; through the negative pressure cavity design of the ejector, water and acid mist can be more fully mixed into acid mist-containing wastewater in the ejector, namely the acid mist can be more fully absorbed by the water, and the acid mist absorption effect is realized.
Description
Technical Field
The utility model relates to the technical field of chemical engineering, in particular to an acid mist absorption device for a hydrochloric acid storage tank.
Background
In a thermal power plant, systems which need to use hydrochloric acid on site include boiler make-up water, condensate polishing, industrial wastewater, seawater desalination, desulfurization wastewater, wastewater zero-discharge concentration and the like, and all systems have a hydrochloric acid storage tank or a hydrochloric acid metering tank, so that acid mist is difficult to avoid. The exhaust from the hydrochloric acid storage tank and the batch tank should be directed to an acid mist absorption unit as required by power plant chemical design code (DL 5068-2014).
The acid mist absorption devices used at present all adopt spray absorption type acid mist absorption devices, and the absorption effect is poor in practice, so that the acid mist is often overflowed to corrode peripheral equipment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an acid mist absorption device of a hydrochloric acid storage tank.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the acid mist absorption device of the hydrochloric acid storage tank comprises a storage tank, wherein the storage tank is provided with an acid mist output port which is connected with an acid mist output pipe; the sprayer is provided with an acid mist inlet, a water inlet and a sprayer outlet, the acid mist inlet is communicated with the acid mist output pipe, and the water inlet is connected with a water inlet pipe; the sprayer comprises a mixing bin and an output spray pipe, the acid mist inlet and the water inlet are positioned on the mixing bin, and the sprayer outlet is positioned on the output spray pipe; a negative pressure cavity is arranged in the mixing bin, after water enters the mixing bin from the water inlet, micro negative pressure is formed in the negative pressure cavity, so that the water and acid mist are fully mixed to form acid mist-containing wastewater, and the acid mist-containing wastewater is sprayed out from the outlet of the sprayer; and the waste liquid pool is used for receiving the acid mist-containing waste water sprayed from the outlet of the sprayer.
According to the hydrochloric acid storage tank acid mist absorption device provided by the utility model, the negative pressure cavity design of the ejector is adopted, so that water and acid mist can be more fully mixed into acid mist-containing wastewater in the ejector, namely, the acid mist can be more fully absorbed by the water, and the acid mist absorption effect is realized.
As some preferred embodiments of the utility model, the storage tank comprises a carbon steel lining glue cavity.
As some preferred embodiments of the present invention, a flow guiding sleeve is disposed in the mixing bin, the flow guiding sleeve has a through hole, the flow guiding sleeve divides the interior of the mixing bin into a water inlet cavity and a negative pressure cavity, the water inlet is located on the water inlet cavity, the acid mist inlet is located on the negative pressure cavity, and the negative pressure cavity is communicated with the output nozzle.
As some preferred embodiments of the present invention, the guide sleeve has a cross-sectional shape of a "V", and has a flared opening portion facing the water inlet and a tip portion facing the outlet nozzle.
As some preferred embodiments of the present invention, an adjusting gasket is disposed between the flow guide sleeve and the mixing bin.
As some preferred embodiments of the present invention, the shortest distance between the tip portion and the inlet end of the output nozzle is defined as a, the shortest inner diameter of the inlet end of the output nozzle is defined as b, and a and b are satisfied,
as some preferred embodiments of the utility model, the outlet nozzle comprises a narrowing section towards the inlet end and a diverging section towards the outlet end.
As some preferred embodiments of the utility model, the water inlet pipe is provided with a water adjusting valve.
As some preferred embodiments of the utility model, the waste liquid pool is provided with a corrosion protection layer.
The utility model has the beneficial effects that:
1. the water of the new absorption device enters the ejector, the ejector forms a certain negative pressure in the negative pressure cavity, the acid mist is more fully mixed and dissolved in the water, and finally the effect that the acid mist is completely absorbed is achieved;
2. the new absorption device is particularly suitable for small-flow industrial water in the power generation industry;
3. the new absorption device realizes the absorption and treatment of acid mist by utilizing the horizontal ejector, the device has stable operation, low noise and higher safety factor;
4. the new absorption device has the advantages of few easily-damaged parts, convenience in installation, low investment cost, corrosion resistance and long service life, and is beneficial to popularization and application of the technology.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the structure of the ejector of the present invention.
Reference numerals:
a storage tank 100 and an acid mist outlet 101; an acid mist output pipe 200; the device comprises an ejector 300, an acid mist inlet 301, a water inlet 302, an ejector outlet 303, a mixing bin 310, a negative pressure cavity 311, a water inlet cavity 312, an output spray pipe 320, a narrowed pipe section 321, a diffusion pipe section 322, a flow guide sleeve 330, a horn opening part 331, a tip part 332 and a regulating gasket 340; a water inlet pipe 400, a water regulating valve 410; waste liquid tank 500 and outlet pipe 510.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the utility model can be practiced without these specific details, i.e., those skilled in the art can more effectively introduce the essential nature of their work to others skilled in the art using the description and presentation herein.
It should be further noted that the terms "inner" and "outer" as used in the following description refer to directions toward and away from, respectively, the geometric center of a particular component, and that simple, non-inventive adjustments to such directions by those skilled in the art should not be construed as techniques outside the scope of the present application.
If the description of "first", "second", etc. is used for the purpose of distinguishing technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.
It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides an acid mist absorption apparatus for a hydrochloric acid storage tank, which includes a storage tank 100, the storage tank 100 has an acid mist output port 101, and the acid mist output port 101 is connected to an acid mist output pipe 200. Hydrochloric acid or other chemicals are stored in the storage tank 100, and the acid mist generated in the storage tank 100 is discharged from the acid mist output port 101.
Further, referring to fig. 2, the sprayer 300 has an acid mist inlet 301, a water inlet 302, and a sprayer outlet 303, the acid mist inlet 301 is communicated with the acid mist output pipe 200, and the water inlet 302 is connected with a water inlet pipe 400.
Still further, the sprayer 300 includes a mixing chamber 310 and an output nozzle 320, the acid mist inlet 301 and the water inlet 302 being located on the mixing chamber 310, and the sprayer outlet 303 being located on the output nozzle 320. The ejector 300 is a vacuum-derived device that uses a fluid to transfer energy and mass, using a stream of water under pressure that is ejected through a nozzle.
Still further, a negative pressure cavity 311 is arranged in the mixing bin 310, after water enters the mixing bin 310 from the water inlet 302, micro negative pressure is formed inside the negative pressure cavity 311, so that the water and acid mist are fully mixed to form acid mist-containing wastewater, and the acid mist-containing wastewater is sprayed out from the sprayer outlet 303.
Still further, a waste reservoir 500 is provided for receiving the acid mist-containing waste water ejected from the ejector outlet 303.
During actual work, acid mist enters the mixing bin 310 from the acid mist inlet 301, water enters the ejector 300 from the water inlet 302, and meanwhile, micro negative pressure is formed inside the negative pressure cavity 311, so that the water and the acid mist are mixed into acid mist-containing wastewater more fully, namely, the acid mist can be absorbed by the water more fully, and the acid mist absorption effect is realized. The acid mist-containing wastewater is finally discharged to the waste liquid tank 500 for storage or further treatment to complete the whole acid mist absorption work.
The above disclosed acid mist absorption device for a hydrochloric acid storage tank is only a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same. It will be understood by those skilled in the art that the foregoing technical solutions may be modified or supplemented by the prior art, or some of the technical features may be replaced by equivalents; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details representative of one or more embodiments are not necessarily indicative of any particular order, nor are they intended to be limiting.
In some embodiments, the storage tank 100 is used as a hydrochloric acid storage tank in a thermal power plant, and the volume of the storage tank is generally not more than 20 cubic meters.
In some embodiments, the storage tank 100 includes a carbon steel rubber lined cavity to ensure long term use.
In some embodiments, the acid mist outlet conduit 200 is a carbon steel lined hose for circulating the acid mist from the storage tank 100, the portion of the acid mist being dispersed throughout the injector 300.
In some embodiments, the ejector 300 is one or more.
In some embodiments, the negative pressure cavity 311 of the ejector 300 is created by a suction device or negative pressure pump.
In some embodiments, referring to fig. 2, a flow guide sleeve 330 is disposed in the mixing chamber 310, the flow guide sleeve 330 has a through hole, the flow guide sleeve 330 divides the inside of the mixing chamber 310 into a water inlet cavity 312 and a negative pressure cavity 311, the water inlet 302 is disposed on the water inlet cavity 312, the acid mist inlet 301 is disposed on the negative pressure cavity 311, and the negative pressure cavity 311 is communicated with the output nozzle 320. Since the water flowing through the guiding sleeve 330 has a high flow rate, the pressure energy is converted into velocity energy, so that the suction pressure of the negative pressure cavity 311 is reduced to generate vacuum. During operation, the negative pressure cavity 311 generates negative pressure, so that pressure difference is formed between the storage tank 100 and the mixing bin 310, the acid mist in the storage tank 100 is diffused to the mixing bin 310, water and the acid mist in the mixing bin 310 are mixed, and the acid mist is removed more effectively.
In some embodiments, flow guide sleeve 330 has a "V" cross-sectional shape, flow guide sleeve 330 having a flared opening 331 and a tip portion 332, flared opening 331 facing water inlet 302 and tip portion 332 facing outlet nozzle 320. The guide sleeve 330 can enable water to form very fine bubbles under the action of high-speed violent movement, increase the contact area of the water and the acid mist, further increase the air suction amount of the acid mist, and improve the adsorption effect of the water on the acid mist.
In some embodiments, an adjusting gasket 340 is disposed between the diversion sleeve 330 and the mixing bin 310, so as to adjust the position between the diversion sleeve 330 and the mixing bin 310 and ensure the tightness between the diversion sleeve 330 and the mixing bin 310.
In some embodiments, the shortest distance between the tip portion 332 and the inlet end of the outlet nozzle 320 is defined as a, the shortest inner diameter of the inlet end of the outlet nozzle 320 is defined as b, a and b are satisfied,
further ensuring the acid mist adsorption effect.
In some embodiments, the outlet nozzle 320 includes a narrowed section 321 towards the inlet end and a diverging section 322 towards the outlet end, forming a venturi-like structure, which facilitates further ensuring the acid mist adsorption effect by utilizing the venturi effect.
In some embodiments, the water inlet pipe 400 is provided with a water adjustment valve 410 for adjusting the water flow rate in the water inlet pipe 400 and the water inlet pressure of the injector 300, thereby controlling the negative pressure inside the injector 300.
In some embodiments, the operating pressure
The industrial water is introduced into the injector 300 through the water inlet pipe 400.
In some embodiments, water inlet pipe 400 is a carbon steel pipe.
In some embodiments, the water from the eductor 300 is sprayed directly into the waste reservoir 500.
In some embodiments, the water inlet 302 of the eductor 300 is connected to the waste reservoir 500 via an outlet pipe 510 for transporting the mixed acid mist-containing wastewater from the eductor 300 to ultimately flow into the waste reservoir 500.
In this embodiment, the water outlet pipe 510 is a carbon steel rubber-lined pipe.
In some embodiments, a corrosion protection layer is provided within the waste reservoir 500 to ensure long term use.
In some embodiments, the waste reservoir 500 is a pool of underground concrete structures.
The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.
Practice proves that the device can replace the conventional acid mist absorber of a thermal power plant at present, not only meets the requirement of design specification, but also truly achieves the purpose that the acid mist is completely absorbed. The device has small water consumption in operation, and can effectively solve the problem that the hydrochloric acid storage equipment is corroded by the overflow of acid mist.
Claims (9)
1. The utility model provides a hydrochloric acid storage tank acid mist absorbing device which characterized in that: the acid mist spraying device comprises a storage tank (100), wherein the storage tank (100) is provided with an acid mist output port (101), and the acid mist output port (101) is connected with an acid mist output pipe (200);
the sprayer (300) is provided with an acid mist inlet (301), a water inlet (302) and a sprayer outlet (303), the acid mist inlet (301) is communicated with the acid mist output pipe (200), and the water inlet (302) is connected with a water inlet pipe (400);
the sprayer (300) comprises a mixing bin (310) and an output spray pipe (320), the acid mist inlet (301) and the water inlet (302) are positioned on the mixing bin (310), and the sprayer outlet (303) is positioned on the output spray pipe (320);
a negative pressure cavity (311) is arranged in the mixing bin (310), after water enters the mixing bin (310) from the water inlet (302), micro negative pressure is formed inside the negative pressure cavity (311), so that the water and acid mist are fully mixed to form acid mist-containing wastewater, and the acid mist-containing wastewater is sprayed out from the sprayer outlet (303);
a waste reservoir (500) for receiving the acid mist-containing waste water ejected from the ejector outlet (303).
2. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 1, wherein: the storage tank (100) comprises a carbon steel lining rubber cavity.
3. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 1, wherein: be provided with water conservancy diversion cover (330) in mixing storehouse (310), water conservancy diversion cover (330) has the through-hole, water conservancy diversion cover (330) will separate into intake antrum (312), negative pressure chamber (311) in mixing storehouse (310), water inlet (302) are located on intake antrum (312), acid mist entry (301) are located on negative pressure chamber (311), negative pressure chamber (311) with output spray tube (320) intercommunication.
4. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 3, wherein: the cross-sectional shape of the flow guide sleeve (330) is V-shaped, the flow guide sleeve (330) is provided with a horn opening part (331) and a tip part (332), the horn opening part (331) faces the water inlet (302), and the tip part (332) faces the output spray pipe (320).
5. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 3, wherein: an adjusting gasket (340) is arranged between the flow guide sleeve (330) and the mixing bin (310).
6. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 4, wherein: defining the shortest distance between the tip part (332) and the inlet end of the output spray pipe (320) as a, the shortest inner diameter of the inlet end of the output spray pipe (320) as b, and satisfying a and b = 0.2-0.5.
7. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 1, wherein: the outlet nozzle (320) comprises a narrowing pipe section (321) towards the inlet end and a diverging pipe section (322) towards the outlet end.
8. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 1, wherein: and a water adjusting valve (410) is arranged on the water inlet pipe (400).
9. The acid mist absorption device of the hydrochloric acid storage tank as claimed in claim 1, wherein: an anti-corrosion layer is arranged in the waste liquid pool (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121656178.3U CN216092961U (en) | 2021-07-20 | 2021-07-20 | Acid mist absorption device of hydrochloric acid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121656178.3U CN216092961U (en) | 2021-07-20 | 2021-07-20 | Acid mist absorption device of hydrochloric acid storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN216092961U true CN216092961U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121656178.3U Active CN216092961U (en) | 2021-07-20 | 2021-07-20 | Acid mist absorption device of hydrochloric acid storage tank |
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| CN (1) | CN216092961U (en) |
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2021
- 2021-07-20 CN CN202121656178.3U patent/CN216092961U/en active Active
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