CN210463067U

CN210463067U - Venturi type quencher

Info

Publication number: CN210463067U
Application number: CN201921120879.8U
Authority: CN
Inventors: 池昌伟; 黄友岳; 许雪良
Original assignee: HANGZHOU ZHONGHAO TECHNOLOGY CO LTD
Current assignee: HANGZHOU ZHONGHAO TECHNOLOGY CO LTD
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-05
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a Venturi type quencher, which comprises a quenching pipe and a tank body which are communicated up and down, wherein the quenching pipe is of a Venturi type structure and comprises an inlet pipe, a contraction pipe, a choke and a diffusion pipe, the top of the inlet pipe is provided with a flue gas inlet, and the upper part of the inlet pipe is provided with more than one cooling liquid inlet; the shrinkage pipe lower part is equipped with sprays the mouth, is equipped with the decurrent shower of nozzle in the shower mouth, and quench tube bottom is fixed with jar body, and jar body upper portion is equipped with the exhanst gas outlet, and jar body lower part is equipped with the liquid outlet. The utility model provides a quench pipe adopts venturi structure, and the high temperature flue gas gets into the diffusion tube behind inlet tube, shrink tube, choke, at the in-process of diffusion, can make saturated vapor press reduce to reach the purpose of cooling, in addition, the effect of cooling water in effect and the shower through the top coolant liquid, and combine venturi structure of quench pipe, can realize the high-altitude mixture of gas-liquid, improve the area of contact of gas-liquid greatly, improve the efficiency of flue gas quench.

Description

Venturi type quencher

Technical Field

The utility model belongs to the technical field of chemical industry equipment, a quench cooler is related to, especially, relate to a venturi type quench cooler.

Background

For high-temperature flue gas, if the high-temperature flue gas is directly discharged, toxic and harmful substances in the flue gas can cause environmental pollution, and the requirement of environmental protection cannot be met. In order to process the flue gas and prevent the high-temperature gas from damaging subsequent equipment, the flue gas needs to be rapidly cooled. The conventional cooling device adopts a tower body spraying mode to cool the flue gas, and the adopted spraying tower is large in volume and high in energy consumption due to the large amount of the flue gas; the smoke contains a large amount of acidic substances, corrosive acid liquor can be generated when the smoke is cooled, the service life of metal equipment is short, and the operation risk is increased.

The quencher is a device which rapidly cools high-temperature gas to low temperature so as to reduce the cooling pressure of downstream equipment and enable the downstream equipment to reach a processable temperature. The quencher is widely used in chemical engineering, medicine and environmental protection engineering, rapidly cools and incinerates high-temperature gas according to process requirements, and can meet the gas emission requirements and recover condensed products.

For the rapid cooling of corrosive incineration flue gas, the rapid cooling form and the corrosion-resistant material are selected to have important significance on the rapid cooling effect and the stable operation, and the best boundary of the rapid cooling is that the temperature reaches or approaches to the saturated gas temperature, thereby providing high-quality conditions for the next procedure. The existing quencher has the defects of generally unsatisfactory quenching effect, complex structure, high operation cost and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides a Venturi type quencher which has simple structure, lower running cost, low operating cost and good quenching effect.

The utility model adopts the technical proposal that:

a Venturi type quencher comprises a quenching pipe and a tank body which are communicated up and down, wherein the quenching pipe is of a Venturi type structure and comprises an inlet pipe, a contraction pipe, a throat pipe and a diffusion pipe, the top of the inlet pipe is provided with a flue gas inlet, and the upper part of the inlet pipe is provided with more than one cooling liquid inlet; the utility model discloses a rapid cooling device, including shrink tube, jar body upper portion is equipped with the flue gas outlet, and jar body lower part is equipped with the outlet, be equipped with the nozzle decurrent shower in the shower, quench tube bottom is fixed with the jar body, jar body upper portion is equipped with the gas outlet, and jar body lower part is equipped with the liquid outlet.

The utility model provides a quench pipe adopts venturi structure, and the high temperature flue gas gets into the diffusion tube behind inlet tube, shrink tube, choke, at the in-process of diffusion, can make saturated vapor press reduce to reach the purpose of cooling, in addition, the effect of cooling water in effect and the shower through the top coolant liquid, and combine venturi structure of quench pipe, can realize the high-altitude mixture of gas-liquid, improve the area of contact of gas-liquid greatly, improve the efficiency of flue gas quench.

The utility model discloses quench pipe, jar internal wall include the inner liner, and the inner liner resin adopts vinyl (like 470), and thickness is for being not less than 3.5 mm.

Preferably, a liquid blocking ring is arranged at the position of the cooling liquid inlet, the liquid blocking ring extends downwards, the diameter of the top of the liquid blocking ring is larger than the diameter of the bottom of the liquid blocking ring, the diameter of the top of the liquid blocking ring is larger than the inner diameter of the inlet pipe, the diameter of the bottom of the liquid blocking ring is smaller than the inner diameter of the inlet pipe, and the liquid blocking ring is communicated with the cooling liquid inlet. Because the diameter of the bottom of the liquid blocking ring is smaller than the inner diameter of the inlet pipe, a certain gap exists between the liquid blocking ring and the inlet pipe of the quenching pipe, cooling liquid can be introduced from the cooling liquid inlet, and the cooling liquid can flow downwards along the inner wall of the quenching pipe to form a liquid film through the gap between the liquid blocking ring and the inlet pipe of the quenching pipe, so that the quenching effect of the flue gas is further promoted.

Preferably, the bottom of the quenching pipe is fixed with the tank body through a flange. The flange connection has the advantages of convenient assembly and disassembly, high strength and the like.

Preferably, a gasket seal is arranged at the flange. Through the setting of seal gasket, can improve the sealing performance of junction.

Preferably, the upper part of the tank body is provided with a first liquid level meter port, and the lower part of the tank body is provided with a second liquid level meter port. Through the setting of level gauge mouth, can the internal liquid level of real-time supervision jar.

Preferably, the outer wall of the tank body is provided with a support.

Preferably, the tank body is mounted on a support through a support, and a base plate is arranged between the support and the cylinder support.

Preferably, the bottom of the tank body is provided with a drain port.

Preferably, the number of the cooling liquid inlets is three, and the cooling liquid inlets are uniformly distributed along the circumference of the inlet pipe.

Preferably, the liquid inlet pipes connected with the cooling liquid inlet are respectively tangent to the outer diameter of the bottom of the liquid baffle ring. Through the tangent line setting between feed liquor pipe and the fender liquid circle, can be so that the better edge inner wall of coolant liquid that gets into forms the liquid film structure, promote the rapid cooling effect of flue gas.

The beneficial effects of the utility model reside in that:

(1) the high-temperature flue gas enters the diffusion tube after passing through the inlet tube, the contraction tube and the throat tube, and the saturated vapor pressure can be reduced in the diffusion process, so that the aim of cooling is fulfilled;

(2) through the action of the cooling liquid at the top and the action of cooling water in the spray pipe and the combination of the Venturi type quenching pipe structure, high mixing of gas and liquid can be realized, the contact area of the gas and the liquid is greatly increased, and the efficiency of quenching flue gas is improved;

(2) the quencher has the advantages of simple integral structure, low energy consumption, low production cost and low operation cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a plan view of embodiment 1 of the present invention;

FIG. 3 is a schematic view of the structure of the cooling liquid inlet of the present invention;

FIG. 4 is a schematic structural view of the shower pipe of the present invention;

fig. 5 is a plan view of embodiment 2 of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments, but the scope of the invention is not limited thereto.

Example 1

Referring to fig. 1 ~ 4, a venturi formula quencher, quencher is including the quench pipe and jar body 1 that the intercommunication set up from top to bottom, the quench pipe is venturi structure, including inlet tube 2, shrink pipe 3, choke 4 and

diffuser

5, 2 tops of inlet tube are equipped with

flue gas inlet

6, and 2 upper portions of inlet tube are equipped with three coolant liquid inlet 7, coolant liquid inlet 7 is along inlet tube circumference evenly distributed.

The cooling liquid import 7 department is equipped with keeps off liquid circle 8, keep off liquid circle 8 and extend the arrangement downwards, keep off liquid circle 8 top diameter and be greater than the diameter of keeping off liquid circle 8 bottom, keep off liquid circle 8 top diameter and be greater than the 2 internal diameters of inlet tube, keep off liquid circle 8 bottom diameter and be less than the 2 internal diameters of inlet tube, it is linked together with cooling liquid import 7 to keep off liquid circle 8. Because the diameter of the bottom of the liquid blocking ring is smaller than the inner diameter of the inlet pipe, a certain gap exists between the liquid blocking ring and the inlet pipe of the quenching pipe, cooling liquid can be introduced from the cooling liquid inlet 7, and the cooling liquid can flow downwards along the inner wall of the quenching pipe to form a liquid film through the gap between the liquid blocking ring 8 and the inlet pipe 2 of the quenching pipe, so that the quenching effect of the flue gas is further promoted.

The lower part of the contraction pipe 3 is provided with a spraying opening 9, a spraying pipe 11 with a downward nozzle 10 is arranged in the spraying opening, and the nozzle 10 is arranged along the direction of flue gas flow, so that the damage of the flue gas to the nozzle can be reduced, and the operation cost is reduced. The bottom of the quenching pipe is fixed with the tank body, the upper part of the tank body is provided with a flue gas outlet 12, the lower part of the tank body is provided with a liquid outlet 13, and the bottom of the tank body is provided with a drain port 14.

The utility model discloses after 6 entering quench pipes of flue gas inlet of high temperature flue gas, the rapid cooling under the effect of coolant liquid earlier, then further carry out the high-mixing with water and coolant liquid that spray out in spray pipe 11's nozzle 10 to under the effect of diffusion tube and rivers, obtain cooling rapidly, the low temperature flue gas after the cooling passes through exhanst gas outlet 12 and discharges.

The utility model provides a quench pipe adopts venturi structure, and the high temperature flue gas gets into the diffusion tube 5 after inlet tube 2, shrink pipe 3, choke 4, at the in-process of diffusion, can make saturated vapor press to reduce to reach the purpose of cooling, in addition, through the effect of top coolant liquid and the effect of cooling water in the shower, and combine venturi's quench pipe structure, can realize the high-altitude mixture of gas-liquid, improve the area of contact of gas-liquid greatly, improve the efficiency of flue gas quench.

The quench pipe bottom is fixed with the tank body through a flange 15, and the flange connection has the advantages of convenience in disassembly and assembly, high strength and the like. The flange is provided with a gasket for sealing, and the sealing performance of the joint can be improved through the arrangement of the sealing gasket.

The upper portion of the tank body 1 is provided with a first liquid level meter port 16, the lower portion of the tank body is provided with a second liquid level meter port 17, through the arrangement of the liquid level meter ports, the liquid level in the tank body can be monitored in real time, and the liquid level in the tank body can be adjusted according to actual needs.

The outer wall of the tank body is provided with a support 18, the tank body is arranged on a support 19 through the support 18, and a base plate 20 is arranged between the support 19 and the tank support. Through installing the jar body on the support, can adjust the mounting height of the jar body according to actual need, satisfy different customers' actual demand.

The utility model discloses feed liquor pipe 21 that links to each other with coolant liquid import 7 is tangent with 8 bottom external diameters of fender liquid circle respectively, through feed liquor pipe 21 and the tangent line setting between the fender liquid circle 8, can be so that the better edge inner wall of the coolant liquid that gets into forms the liquid film structure, promotes the rapid cooling effect of flue gas.

The working principle of the quench cooler of the utility model is that:

1. high-temperature flue gas is introduced downwards from a flue gas inlet 6 at the top of the inlet pipe 2, and enters the diffusion pipe 5 after passing through the inlet pipe 2, the contraction pipe 3 and the throat pipe 4, so that the saturated vapor pressure can be reduced in the diffusion process, and the aim of cooling is fulfilled;

2. introducing cooling liquid through a cooling liquid inlet 7, enabling the cooling liquid to flow downwards along the inner wall of the quenching pipe under the action of a liquid blocking ring 8 to form a liquid film, quenching the high-temperature flue gas in the quenching pipe, and further promoting the quenching through high mixing with the high-temperature flue gas in the diffusion pipe 5;

3. spraying cooling water to the central part through a nozzle 10 of a spraying pipe 11; the high-temperature flue gas and the cooling water are highly mixed, the contact area of the gas and the liquid is greatly increased, and the flue gas quenching efficiency is improved;

4. downward flue gas enters the tank body 1 after being acted by the Venturi type quenching pipe, and the treated low-temperature flue gas is discharged through a flue gas outlet 12;

5. the liquid in the tank body is discharged through the liquid outlet 13 and can be recycled;

6. after the quenching is finished, the residual sewage in the tank body is discharged from a discharge port 14.

The utility model discloses simple structure uses the energy consumption low, and easy operation can effectively reduce the use cost of equipment, has excellent rapid cooling effect simultaneously.

Example 2

Referring to fig. 1, fig. 3 ~ 5, a venturi formula quencher, quencher is including the quench pipe and the jar body 1 that intercommunication set up from top to bottom, the quench pipe is venturi structure, including inlet tube 2, shrink pipe 3, choke 4 and diffuser 5, inlet tube 2 top is equipped with flue gas inlet 6, and inlet tube 2 upper portion is equipped with two coolant liquid imports 7.

Claims

1. A venturi-type quench cooler characterized by: the quenching device comprises a quenching pipe and a tank body which are communicated up and down, the quenching pipe is of a Venturi structure and comprises an inlet pipe, a contraction pipe, a throat pipe and a diffusion pipe, the top of the inlet pipe is provided with a flue gas inlet, and the upper part of the inlet pipe is provided with more than one cooling liquid inlet; the utility model discloses a rapid cooling device, including shrink tube, jar body upper portion is equipped with the flue gas outlet, and jar body lower part is equipped with the outlet, be equipped with the nozzle decurrent shower in the shower, quench tube bottom is fixed with the jar body, jar body upper portion is equipped with the gas outlet, and jar body lower part is equipped with the liquid outlet.

2. The venturi-type chiller of claim 1 wherein: the cooling liquid inlet is provided with a liquid blocking ring, the liquid blocking ring extends downwards, the diameter of the top of the liquid blocking ring is larger than the diameter of the bottom of the liquid blocking ring, the diameter of the top of the liquid blocking ring is larger than the inner diameter of the inlet pipe, the diameter of the bottom of the liquid blocking ring is smaller than the inner diameter of the inlet pipe, and the liquid blocking ring is communicated with the cooling liquid inlet.

3. The venturi-type chiller of claim 1 wherein: the bottom of the quenching pipe is fixed with the tank body through a flange.

4. The venturi-type chiller of claim 3 wherein: and a gasket seal is arranged at the flange.

5. The venturi-type chiller of claim 1 wherein: the upper part of the tank body is provided with a first liquid level meter port, and the lower part of the tank body is provided with a second liquid level meter port.

6. The venturi-type chiller of claim 1 wherein: and a support is arranged on the outer wall of the tank body.

7. The venturi-type chiller of claim 6 wherein: the tank body is arranged on the support through the support, and a base plate is arranged between the support and the cylinder support.

8. The venturi-type chiller of claim 1 wherein: the bottom of the tank body is provided with a clean discharge port.

9. The venturi-type chiller of claim 1 wherein: the quantity of coolant liquid import is three, and evenly distributed along the inlet tube circumference.

10. The venturi-type chiller according to claim 2 or 9 wherein: the liquid inlet pipe connected with the cooling liquid inlet is respectively tangent to the outer diameter of the bottom of the liquid baffle ring.