CN210057751U - Waste gas unloading device after VOCs treatment - Google Patents
Waste gas unloading device after VOCs treatment Download PDFInfo
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- CN210057751U CN210057751U CN201920608952.XU CN201920608952U CN210057751U CN 210057751 U CN210057751 U CN 210057751U CN 201920608952 U CN201920608952 U CN 201920608952U CN 210057751 U CN210057751 U CN 210057751U
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Abstract
The utility model discloses a waste gas emptying device after VOCs treatment, which comprises a water seal horizontal tank, an emptying vertical pipe, a water seal pipe, an overflow baffle and a spray distributor; the left end and the right end of the water-sealed horizontal tank are oval end sockets, and a tail gas outlet and a tail gas inlet are respectively arranged on the top barrel at the left end and the right end of the water-sealed horizontal tank; a water seal pipe is arranged on the tail gas inlet, the lower end of the water seal pipe extends into the water seal horizontal tank below the water level of water seal water, an overflow baffle plate is arranged between the water seal pipe at the bottom of the water seal horizontal tank and the right-end elliptical head, the upper edge of the overflow baffle plate is higher than the pipe orifice at the lower end of the water seal pipe, and a water outlet is arranged at the bottom of the water seal horizontal tank between the overflow baffle plate and the right-end elliptical head; an emptying vertical pipe is arranged on the tail gas outlet, and a spraying distributor is arranged in the emptying vertical pipe. The utility model discloses utilize the water seal to replace the spark arrester as the back-fire relief measure, utilize to spray impurity such as granule, lime set that contain in the detached tail gas, have water seal, washing function simultaneously, and simple structure, the cost is low, and difficult jam is overhauld conveniently.
Description
Technical Field
The utility model belongs to the technical field of VOCs handles and tail gas diffuses, specifically speaking relates to a VOCs handles back waste gas unloading device.
Background
The main technologies for treating Volatile Organic Compounds (VOCs) in waste gas include adsorption technology, thermal incineration technology, catalytic oxidation technology, low-temperature plasma technology, and the like. The catalytic oxidation technology is that VOCs are heated in airflow, and the chemical reaction of the VOCs is accelerated under the action of a catalyst of a catalytic bed layer, and the existence of the catalyst enables the VOCs to need less retention time and lower temperature than a direct combustion method; the low-temperature plasma technology is to degrade VOCs by direct or indirect reaction of high-energy electrons and active groups generated by high-voltage discharge and VOCs molecules.
The low-temperature plasma technology and the oil gas recovery processing method of catalytic oxidation belong to destruction methods, and the processed tail gas often contains impurities such as some fine solid particles and condensation liquid after reaction which need to be removed; the tail gas emission pipeline need set up the back-fire relief facility, because of the often size of tail gas emission pipeline is big partially, if the back-fire relief device of installation then the size is big, the cost is high, and the back-fire relief device takes place to block up easily moreover, is difficult for overhauing, influences normal operating.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems of large size, high manufacturing cost, easy blockage and difficult maintenance existing in the prior art, the utility model provides a waste gas emptying device after VOCs treatment.
The utility model provides a waste gas emptying device after VOCs treatment, which comprises a water seal horizontal tank, an emptying vertical pipe, a water seal pipe, an overflow baffle and a spray distributor; the left end and the right end of the water-sealed horizontal tank are oval end sockets, and a tail gas outlet and a tail gas inlet are respectively arranged on the top barrel at the left end and the right end of the water-sealed horizontal tank; a water seal pipe is arranged on the tail gas inlet, the lower end of the water seal pipe extends into the water seal horizontal tank below the water level of water seal water, an overflow baffle plate is arranged between the water seal pipe at the bottom of the water seal horizontal tank and the right-end elliptical head, the upper edge of the overflow baffle plate is higher than the pipe orifice at the lower end of the water seal pipe, and a water outlet is arranged at the bottom of the water seal horizontal tank between the overflow baffle plate and the right-end elliptical head; an emptying vertical pipe is arranged on the tail gas outlet, and a spraying distributor is arranged in the emptying vertical pipe.
The spraying distributor consists of an inlet pipe, a buffer cavity and a spraying pipe, wherein the buffer cavity is a cylindrical cavity with the upper end and the lower end closed, and the inlet pipe is a horizontal pipe and is arranged in the center of the top of the buffer cavity through a 90-degree elbow; the spray pipe is a horizontal pipe with a spray round hole at the bottom, is uniformly arranged in a radial shape along the circumferential direction of the buffer cavity, one end of the spray pipe is arranged on the side wall of the buffer cavity, and the other end of the spray pipe is a closed end and keeps a gap with the inner wall of the emptying vertical pipe. The diameter of the buffer cavity is 0.1-0.2 times of the diameter of the emptying vertical pipe, and the height of the buffer cavity is 0.05-0.1 times of the diameter of the emptying vertical pipe. The clearance between the closed end of the spray pipe and the inner wall of the emptying vertical pipe is 3-5 mm, and the number of the spray pipes is 10-15. The spraying round holes are arranged at equal intervals, the diameter of each spraying round hole is 3-5 mm, and the distance between the centers of the adjacent spraying round holes is 20-30 mm. The number of the spraying distributors is 1-6, the spraying distributors are axially arranged at intervals along the emptying vertical pipe, and the spraying pipes of the adjacent spraying distributors are arranged in a staggered mode to form a good spraying effect.
The emptying vertical pipe is of a vertical pipe structure, and the inner diameter of the emptying vertical pipe is larger than or equal to that of the tail gas inlet. The top of the emptying vertical pipe is provided with an anti-bird wire mesh and a rain-shading cap.
The overflow baffle is a vertical baffle close to a semicircle, and the diameter of the overflow baffle is the same as the inner diameter of the water seal horizontal tank. The arc edge of the overflow baffle is fixed on the inner wall of the water seal horizontal tank, and the straight edge is kept completely horizontal so as to ensure the uniform overflow of the water seal water. The height of the overflow baffle is 0.3-0.5 times of the inner diameter of the horizontal water seal tank, and the distance between the overflow baffle and the tangent line of a seal head at the right end of the horizontal water seal tank is about 0.5-0.8 m.
The water seal pipe is of a vertical pipe structure, is arranged below the tail gas inlet, and has the same caliber as the tail gas inlet. The water seal pipe extends into the position 100-300 mm below the water level of the water seal water.
The tank bottoms that the jar was crouched to water seal is close to the oval head of left end is equipped with the moisturizing mouth for add the water seal water in the jar is crouched to the water seal, and of course, the water seal water also can add the jar is crouched to the water seal through the distributor that sprays of installation in the release riser, the left jar tank bottoms that crouches to water seal of overflow baffle is equipped with the drain.
The utility model discloses unloading device working process does: the treated VOCs tail gas enters a water seal pipe from a tail gas inlet, and the water seal pipe extends below the water seal water level; the tail gas breaks through the water seal and enters the upper gas phase space of the water seal horizontal tank, and enters the emptying vertical pipe through the tail gas outlet; tail gas flows from bottom to top in the emptying vertical pipe and is in countercurrent contact with spray water from top to bottom of the spray distributor to remove dust impurities; and the tail gas finally flows out of the emptying device through the top of the emptying vertical pipe. The water seal water enters the water seal horizontal tank from the water replenishing port, overflows from the overflow baffle and flows out of the water seal horizontal tank from the water outlet at the bottom of the water seal horizontal tank. The spray water enters the spray distributor from the inlet of the spray distributor, and the spray water sprayed falls on the liquid level of the water seal water in the water seal horizontal tank finally. And the wastewater is discharged from the sewage discharge port to the water seal horizontal tank during the overhaul period.
The utility model has the advantages that utilize the water seal to replace the spark arrester as the back-fire relief measure, utilize to spray impurity such as granule, lime set that contain in the detached tail gas, have water seal, washing function simultaneously, and simple structure, the cost is low, and difficult jam is overhauld conveniently.
Drawings
FIG. 1 is a schematic structural view of the evacuation device of the present invention;
FIG. 2 is a schematic side view of the structure of FIG. 1;
fig. 3 is a three-dimensional view of the spray distributor of the present invention;
figure 4 is a bottom view of the spray distributor of the present invention.
In the figure: 1-water seal horizontal tank, 2-emptying vertical pipe, 3-water seal pipe, 4-overflow baffle, 5-water outlet, 6-spray distributor, 7-bird-proof wire mesh, 8-rain-proof cap, 9-spray distributor inlet, 10-tail gas outlet, 11-tail gas inlet, 12-sewage outlet, 13-water replenishing opening, 14-saddle, 15-inlet pipe, 16-buffer cavity, 17-spray pipe and 18-spray round hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figures 1-2, the base support of the emptying device of the utility model adopts a saddle 14 form, and is fixed on a concrete foundation by using anchor bolts. The horizontal water seal tank 1 is a horizontal tank body with elliptic seal heads at two ends, the size of the horizontal water seal tank 1 is determined according to the calculation requirement of the horizontal water seal tank, the ratio of the length between the tangent lines of the seal heads of the horizontal water seal tank 1 to the inner diameter is 6-9, and the horizontal water seal tank 1 is mainly a place for accommodating a first space of tail gas and providing water seal for the tail gas. The openings of the water-sealed horizontal tank 1 mainly comprise a tail gas inlet 11, a tail gas outlet 10, a water replenishing opening 13, a water discharging opening 5 and a sewage discharging opening 12. The tail gas outlet 10 and the tail gas inlet 11 are located at the top of the horizontal water seal tank 1 and are respectively vertically installed at the left end and the right end of the cylinder body of the horizontal water seal tank 1, the water seal pipe 3 is installed at the bottom of the tail gas inlet 11, and the emptying vertical pipe 2 is installed at the top of the tail gas outlet 10. The central axis of the tail gas inlet 11 is about 1.0-1.5 m away from the tangent line of the right-end elliptical sealing head, and the central axis of the tail gas outlet 10 is about 0.5-1.0 m away from the tangent line of the left-end elliptical sealing head. The water replenishing port 13 is positioned at the bottom of the water seal horizontal tank 1, is positioned at the same side with the tail gas outlet 10, and has a central axis which is 0.3-0.5 m away from the tangent line of the left-end elliptic seal head. Overflow baffle 4 is cut apart into water seal water space and overflow water buffer space with the liquid phase space of water seal horizontal tank 1, and outlet 5 is located overflow baffle 4's both sides respectively with drain 12, and wherein outlet 5 is located one side of overflow water buffer space, and drain 12 is located one side of water seal water space, and 5 central axes of outlet are apart from overflow baffle 4 about 0.2 ~ 0.5m, and 12 central axes of drain are apart from overflow baffle 4 about 0.5 ~ 1.0 m.
The water seal pipe 3 is arranged below the tail gas inlet 11, and the caliber of the water seal pipe is the same as that of the tail gas inlet 11.
The top of the emptying vertical pipe 2 is provided with an anti-bird wire mesh 7 and a rain-shading cap 8. The length from the water seal water liquid level of the water seal horizontal tank 1 to the top end of the emptying vertical pipe 2 is not less than 15 m. The openings on the emptying vertical pipe 2 are mainly the spraying distributor inlets 9, the spraying distributors 6 are arranged three from top to bottom along the axial direction of the emptying vertical pipe 2, the first spraying distributor, the second spraying distributor and the third spraying distributor are arranged in sequence, the distance between the first spraying distributor and the second spraying distributor is about 1.0-2.0 times of the diameter of the emptying vertical pipe 2, and the distance between the third spraying distributor inlets and the bottom of the emptying vertical pipe 2 is about 5-8 m.
As shown in fig. 3-4, the spraying distributor is composed of an inlet pipe 15, a buffer cavity 16 and spraying pipes 17, the number of the spraying pipes 17 is 12, and the spraying circular holes 18 at the bottom of the spraying pipes 17 are arranged at equal intervals.
As shown in the attached figure 1, the working process of the utility model is as follows: the treated VOCs tail gas enters the water seal pipe 3 from the tail gas inlet 11, and the water seal pipe 3 extends below the liquid level of the water seal water; the tail gas breaks through the water seal and enters the upper gas phase space of the water seal horizontal tank 1, and enters the emptying vertical pipe 2 through a tail gas outlet 10; the tail gas flows from bottom to top in the emptying vertical pipe 2 and is in countercurrent contact with spray water from top to bottom of the spray distributor 6 to remove dust impurities; the tail gas finally flows out of the emptying device through the top of the emptying vertical pipe 2. The water seal water enters the liquid phase space of the water seal horizontal tank 1 from the water replenishing port 13, enters the overflow water buffer space from the overflow baffle 4, and flows out of the water seal horizontal tank 1 from the water outlet 5 at the bottom of the overflow water buffer space. The spray water enters the spray distributor 6 from the spray distributor inlet 9, and the sprayed spray water finally falls on the water seal water liquid surface in the water seal horizontal tank 1. And the wastewater during the maintenance period is discharged out of the water seal horizontal tank 1 through the water outlet 5.
Claims (10)
1. The utility model provides a waste gas emptying devices after VOCs handles which characterized in that: comprises a water seal horizontal tank, an emptying vertical pipe, a water seal pipe, an overflow baffle and a spray distributor; the left end and the right end of the water-sealed horizontal tank are oval end sockets, and a tail gas outlet and a tail gas inlet are respectively arranged on the top barrel at the left end and the right end of the water-sealed horizontal tank; a water seal pipe is arranged on the tail gas inlet, the lower end of the water seal pipe extends into the water seal horizontal tank below the water level of water seal water, an overflow baffle plate is arranged between the water seal pipe at the bottom of the water seal horizontal tank and the right-end elliptical head, the upper edge of the overflow baffle plate is higher than the pipe orifice at the lower end of the water seal pipe, and a water outlet is arranged at the bottom of the water seal horizontal tank between the overflow baffle plate and the right-end elliptical head; an emptying vertical pipe is arranged on the tail gas outlet, and a spraying distributor is arranged in the emptying vertical pipe.
2. The apparatus of claim 1, wherein: the spraying distributor consists of an inlet pipe, a buffer cavity and a spraying pipe, wherein the buffer cavity is a cylindrical cavity with the upper end and the lower end closed, and the inlet pipe is a horizontal pipe and is arranged in the center of the top of the buffer cavity through a 90-degree elbow; the spray pipe is a horizontal pipe with a spray round hole at the bottom, is uniformly arranged in a radial shape along the circumferential direction of the buffer cavity, one end of the spray pipe is arranged on the side wall of the buffer cavity, and the other end of the spray pipe is a closed end and keeps a gap with the inner wall of the emptying vertical pipe.
3. The apparatus of claim 2, wherein: the diameter of the buffer cavity is 0.1-0.2 times of the diameter of the emptying vertical pipe, the height of the buffer cavity is 0.05-0.1 times of the diameter of the emptying vertical pipe, the gap between the closed end of the spray pipe and the inner wall of the emptying vertical pipe is 3-5 mm, and the number of the spray pipes is 10-15.
4. The apparatus of claim 2 or 3, wherein: the spraying round holes are arranged at equal intervals, the diameter of each spraying round hole is 3-5 mm, and the distance between the centers of the adjacent spraying round holes is 20-30 mm.
5. The device of claim 1, wherein the number of the spray distributors is 2-6, the spray distributors are axially arranged along the emptying vertical pipe at intervals, and spray pipes of adjacent spray distributors are arranged in a staggered mode.
6. The device of claim 1, wherein the emptying vertical pipe is a vertical pipe structure, the inner diameter of the emptying vertical pipe is larger than or equal to that of the tail gas inlet, and the top of the emptying vertical pipe is provided with the bird-proof wire mesh and the rain-proof cap.
7. The device according to claim 1, wherein the overflow baffle is a vertical baffle which is approximately semicircular, the diameter of the vertical baffle is the same as the inner diameter of the horizontal water seal tank, the arc edge of the overflow baffle is fixed on the inner wall of the horizontal water seal tank, the straight edge of the overflow baffle is kept completely horizontal, and the height of the overflow baffle is 0.3-0.5 times of the inner diameter of the horizontal water seal tank.
8. The device of claim 1, wherein the water seal pipe is a vertical pipe structure, is arranged below the tail gas inlet, has the same caliber as the tail gas inlet, and extends into the position 100-300 mm below the water level of the water seal pipe.
9. The device of claim 1, wherein a water replenishing opening is arranged at the bottom of the horizontal water-sealed tank close to the oval end socket at the left end, and a sewage draining opening is arranged at the bottom of the horizontal water-sealed tank at the left side of the overflow baffle.
10. The device according to claim 1, wherein the ratio of the length between the tangent lines of the end sockets of the horizontal water seal tank to the inner diameter is 6-9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920608952.XU CN210057751U (en) | 2019-04-30 | 2019-04-30 | Waste gas unloading device after VOCs treatment |
Applications Claiming Priority (1)
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CN201920608952.XU CN210057751U (en) | 2019-04-30 | 2019-04-30 | Waste gas unloading device after VOCs treatment |
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CN210057751U true CN210057751U (en) | 2020-02-14 |
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- 2019-04-30 CN CN201920608952.XU patent/CN210057751U/en active Active
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