CN214502119U

CN214502119U - Cooling type direct exhaust flue

Info

Publication number: CN214502119U
Application number: CN202120680885.XU
Authority: CN
Inventors: 王公平; 姜益品; 李廷
Original assignee: Shenmu Calcium Carbide Group Energy Development Co ltd
Current assignee: Shenmu Calcium Carbide Group Energy Development Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-26
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to a calcium carbide furnace direct vent flue field, in particular to a cooling type direct vent flue, which comprises a flue and a cooling flue, wherein the cooling flue is positioned at the top of the flue, a plurality of buffer flues are arranged at the inner side of the cooling flue, the flue is communicated with the cooling flue, and a cooling cavity is formed between the buffer flues and the cooling flue; the temperature of gas or smoke discharged from the straight exhaust flue is reduced by adding the cooling flue, and the cooling area can be increased by using the Tesla valve structure pipe, so that the cooling efficiency is improved, and the performance of the check valve in the exhaust pipe is ensured.

Description

Cooling type direct exhaust flue

Technical Field

The utility model relates to a carbide stove in line flue field, specificly relate to a cooling type in line flue.

Background

The calcium carbide furnace is the main equipment for producing calcium carbide, the furnace burden is melted and reacts to generate the calcium carbide in the calcium carbide furnace due to the high temperature emitted by electric arc, because the reaction temperature is higher, the direct exhaust flue on the calcium carbide furnace is used for discharging waste gas or smoke dust in the furnace, and because the temperature in the furnace is high, the temperature of the discharged gas or the smoke dust discharged together with the gas is higher, so that a valve on the direct exhaust flue is easy to damage, the direct exhaust flue is not tight in sealing, the reaction temperature in the furnace is difficult to reach, and simultaneously when negative pressure is generated in the furnace, the flue sucks external air to be mixed with CO in the flue to cause flash explosion, thereby easily causing unnecessary loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a direct vent flue of cooling type solves the problem that direct vent flue valve damaged easily among the prior art.

The technical scheme for achieving the aim comprises the following steps: the cooling type direct exhaust flue comprises a flue and is characterized by further comprising a cooling flue, wherein the cooling flue is located at the top of the flue, a plurality of buffer flues are arranged on the inner side of the cooling flue, the flue is communicated with the cooling flue, and a cooling cavity is formed between the buffer flues and the cooling flue.

Further defined, the buffer flue is a Tesla valve structure pipe.

Further inject, the top of cooling flue is equipped with the feed liquor pipe, and the bottom of cooling flue is equipped with the drain pipe, feed liquor pipe and drain pipe all communicate with the cooling chamber.

Further limiting, a smoke exhaust pipe is arranged at the top end of the cooling flue, and the cooling flue is communicated with the smoke exhaust pipe.

Further limiting, a one-way valve is arranged in the smoke exhaust pipe.

Further limited, the one-way valve is a butterfly valve.

Further, the one-way valve is provided with a cooling device.

The utility model has the advantages that:

1. the temperature of gas or smoke dust discharged from the straight smoke discharge flue is cooled by adding the cooling flue, and the cooling area can be increased, the cooling efficiency is improved and the performance of a one-way valve in the smoke discharge pipe is ensured by using the Tesla valve structure pipe;

2. the Tesla valve structure pipe is used, so that the structure is simple, the cost is low, the flow speed of gas or smoke dust discharged from the direct exhaust flue can be reduced in the buffer flue, the cooling efficiency is further improved, the damage of the one-way valve due to high-temperature deformation is avoided, and the sealing effect of the whole structure is improved;

3. through cooling the check valve, the maximization guarantees that the check valve does not receive high temperature to influence and leads to warping, guarantees that overall structure reaches sealed requirement.

Drawings

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

in the figure: 1-flue; 2-cooling the flue; 21-buffer flue; 22-a cooling chamber; 201-liquid inlet pipe; 202-a liquid outlet pipe; 3, a smoke exhaust pipe; 31-one-way valve.

Detailed Description

Referring to fig. 1, the present invention provides an embodiment: a cooling type direct exhaust flue comprises a flue 1, a cooling flue 2 and a smoke exhaust pipe 3.

The bottom of the flue 1 is communicated with the inside of the calcium carbide furnace, the top of the flue 1 is connected with the bottom of the cooling flue 2, a plurality of buffer flues 21 are arranged in the cooling flue 2, the top of the cooling flue 2 is connected with the bottom of the smoke exhaust pipe 3, the buffer flues 21 adopt Tesla valve structure pipes, the speed of gas or smoke dust flowing from bottom to top is ensured to be smaller than the speed of flowing from top to bottom, the bottom of the buffer flues 21 is communicated with the inside of the flue 1, the top of the buffer flues 21 is communicated with the inside of the smoke exhaust pipe 3, the inside of the smoke exhaust pipe 3 is provided with a one-way valve 31, the one-way valve 31 can be selected as a butterfly valve, a cooling device is arranged on the one-way valve 31, a liquid cooling device can be selected, the edge of the one-way valve 31 is mainly cooled, the cooling protection of the one-way valve 31 is further realized, and the edge deformation is prevented.

A liquid inlet pipe 201 and a liquid outlet pipe 202 are respectively arranged on the cooling flue 2, a cooling cavity 22 is formed between the inner wall of the cooling flue 2 and the outer wall of the buffer flue 21, and the cooling liquid is a medium which is high in boiling point and is non-flammable, so that the cooling and the safety production are guaranteed.

The working principle is as follows: in actual work, high temperature gas or smoke dust in the carbide stove are discharged by flue 1 and get into buffer flue 21, flow cooling medium in cooling chamber 22, are used for cooling the high temperature gas or smoke dust in buffer flue 21, because the characteristic of Tesla valve structure pipe simultaneously, area of contact when increasing the cooling improves cooling efficiency on the one hand, and on the other hand makes high temperature gas or smoke dust flow speed when discharging slow down, further increases cooling time, guarantees cooling efficiency.

Meanwhile, in order to ensure that the check valve 31 is not deformed by high temperature, a cooling device on the check valve 31 is opened, the check valve 31 is ensured not to be deformed and can normally work, and a sealing effect is realized, so that when the flue 1 discharges smoke, the check valve 31 is rotated to be opened, when smoke does not need to be discharged or external sundries are prevented from falling into the flue 1, the check valve 32 can be closed at the moment, and the check valve 31 realizes the sealing effect at the moment.

Claims

1. The utility model provides a direct flue of cooled type, includes flue (1), its characterized in that still includes cooling flue (2), cooling flue (2) are located flue (1) top, cooling flue (2) inboard is equipped with a plurality of buffering flues (21), flue (1) and cooling flue (2) intercommunication, form cooling chamber (22) between buffering flue (21) and cooling flue (2).

2. A cooled inline flue according to claim 1, characterised in that the buffer flue (21) is a tesla valve structure tube.

3. The cooling type direct exhaust flue according to claim 2, characterized in that the top of the cooling flue (2) is provided with a liquid inlet pipe (201), the bottom of the cooling flue (2) is provided with a liquid outlet pipe (202), and the liquid inlet pipe (201) and the liquid outlet pipe (202) are both communicated with the cooling cavity (22).

4. The cooling type direct exhaust flue according to claim 3, characterized in that the top end of the cooling flue (2) is provided with a smoke exhaust pipe (3), and the cooling flue (2) is communicated with the smoke exhaust pipe (3).

5. A cooled direct exhaust flue according to claim 4 wherein a one-way valve (31) is arranged in the smoke exhaust pipe (3).

6. A cooled direct vent flue according to claim 5, wherein the one-way valve (31) is a butterfly valve.

7. A cooled direct exhaust flue according to claim 5 wherein the one-way valve (31) is provided with cooling means.