CN212430893U

CN212430893U - Heat accumulating type heating power incineration device not prone to blockage

Info

Publication number: CN212430893U
Application number: CN202020903520.4U
Authority: CN
Inventors: 李礼
Original assignee: Shenzhen Yinghe Environment Iot Technology Co ltd
Current assignee: Shenzhen Yinghe Environment Iot Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-29
Anticipated expiration: 2030-05-25

Abstract

The utility model provides a difficult heat accumulation formula heating power incineration device that blocks up, includes combustion chamber, sets up combustor, at least two settings in the combustion chamber below and with the regenerator of combustion chamber intercommunication and with inlet line and the exhaust pipe of regenerator bottom intercommunication, be provided with the heat accumulator in the regenerator, still include waste gas preheating system, waste gas preheating system is including the first outlet pipe of intercommunication inlet line and combustion chamber, install first extraction valve on the first outlet pipe. The advantages are that: the method can greatly reduce the accumulation rate of high-boiling-point oily organic matters at the bottom of the heat accumulator, and prolong the maintenance period of the heat accumulating type thermal incineration device, thereby reducing the equipment maintenance cost.

Description

Heat accumulating type heating power incineration device not prone to blockage

Technical Field

The utility model belongs to the technical field of organic waste gas treatment facility and specifically relates to a heat accumulation formula heating power that is difficult for blockking up burns device is related to.

Background

A Regenerative Thermal Oxidizer (RTO) is a high-efficiency organic waste gas treatment device, and the principle of the RTO is to oxidize organic matters in waste gas into corresponding carbon dioxide and water at high temperature so as to purify the waste gas and recover heat released during the decomposition of the waste gas, wherein the decomposition efficiency of the organic waste gas reaches more than 99 percent, and the heat recovery efficiency reaches more than 95 percent.

When the regenerative thermal incinerator is used for treating organic waste gas, the waste gas often contains some high-boiling-point oily organic matters which are gradually accumulated at the bottom of a heat accumulator of the regenerative thermal incinerator and in an air inlet pipeline, so that the running resistance is increased, the emission exceeds the standard, the heat accumulator is blocked in serious conditions, and even the heat accumulator is ignited; therefore, the heat storage body is often required to be detached from the regenerative thermal incinerator for cleaning, and the cleaning efficiency is low, resulting in high maintenance cost of the equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat accumulation formula heating power that is difficult for blockking up burns device, its advantage: the method can greatly reduce the accumulation rate of high-boiling-point oily organic matters at the bottom of the heat accumulator, and prolong the maintenance period of the heat accumulating type thermal incineration device, thereby reducing the equipment maintenance cost.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a difficult heat accumulation formula heating power incineration device that blocks up, includes combustion chamber, sets up combustor, at least two settings in the combustion chamber below and with the regenerator of combustion chamber intercommunication and with inlet line and the exhaust pipe of regenerator bottom intercommunication, be provided with the heat accumulator in the regenerator, still include waste gas preheating system, waste gas preheating system is including the first outlet pipe of intercommunication inlet line and combustion chamber, install first extraction valve on the first outlet pipe.

Through above-mentioned technical scheme, the during operation, first outlet pipe can introduce the inlet line with the steam in the combustion chamber, and make the steam heat the waste gas in the inlet line, thereby make the oily organic matter of most high boiling point in the waste gas vaporization, thereby make the oily organic matter of high boiling point that contains more difficult in the waste gas condense bottom inlet line and heat accumulator, thereby reduce the oily organic matter of high boiling point and at the accumulational rate in heat accumulator bottom, the maintenance cycle of heat accumulation formula thermal power incineration device has been prolonged, thereby reduce the equipment maintenance cost. When accumulational oily organic matter of high boiling point in regenerator bottom was too much, can pause waste gas and get into the air inlet pipeline, hot gas through first fairlead in with the combustion chamber introduces the air inlet pipeline, then hot gas has air inlet pipeline to get into the regenerator bottom again, thereby make hot gas heat and make the oily organic matter vaporization of high boiling point get into the combustion chamber to the oily organic matter of high boiling point of piling up in air inlet pipeline and regenerator bottom, then the organic matter that accessible combustor work made the entering combustion chamber is lighted, thereby the efficient has cleaned the regenerator, the security of equipment has been improved, reliability, the purification rate.

The utility model discloses further set up to: the bottom of each heat storage chamber is connected and communicated with an air inlet and outlet pipe, one end of the air inlet and outlet pipe, which is far away from the heat storage chamber, is connected with a three-way switching valve, and the air inlet and outlet pipe is connected and communicated with a reversing port of the three-way switching valve;

the air inlet pipeline comprises a main air inlet pipe, an air inlet fan is arranged on the main air inlet pipe, and an air inlet pipe is connected between an air outlet end of the main air inlet pipe and an air inlet of the three-way switching valve;

the exhaust pipeline comprises a main exhaust pipe, and a branch exhaust pipe is connected between the main exhaust pipe and an exhaust port of the three-way switching valve;

the air inlet end of the main air inlet pipe is communicated with a waste gas inlet pipe, and a waste gas valve is arranged on the waste gas inlet pipe; and one end of the first lead-out pipe, which is far away from the combustion chamber, is communicated with the air inlet end of the main air inlet pipe.

Through the technical scheme, when the three-way switching valve is communicated with the branch gas inlet pipe and the branch gas outlet pipe, waste gas can enter the corresponding heat accumulation type through the corresponding branch gas inlet pipe and the corresponding heat accumulation chamber, and gas in the corresponding heat accumulation chamber cannot be discharged through the corresponding gas inlet pipe and the corresponding gas outlet pipe; correspondingly, when the three-way switching valve is communicated with the branch exhaust pipe and the air inlet and exhaust pipe, gas in the combustion chamber can be exhausted through the heat accumulation chamber, the branch exhaust pipe and the air inlet and exhaust pipe, and gas in the main air inlet pipe cannot enter the heat accumulation chamber through the corresponding branch exhaust pipe and the air inlet and exhaust pipe.

The utility model discloses further set up to: the air inlet end of the main air inlet pipe is connected and communicated with a buffer tank, and the first outlet pipe and the waste gas inlet pipe are both connected and communicated with the buffer tank.

Through above-mentioned technical scheme, waste gas can be good when the buffer tank be heated to make the oily organic matter of high boiling point in the waste gas more that is vaporized, thereby make the organic matter in the waste gas more difficult at admission line and heat accumulator condensation.

The utility model discloses further set up to: the buffer tank is provided with a first temperature monitoring device for detecting the temperature in the buffer tank, and the first temperature monitoring device is electrically connected with the first lead-out valve.

Through above-mentioned technical scheme, first temperature monitoring device can detect the temperature of buffer tank, and first temperature monitoring device sets for a high temperature trigger value and a bottom temperature trigger value, when the temperature of buffer tank is less than first temperature monitoring device's low temperature trigger value, first temperature monitoring device controls first extraction valve and opens, steam in the combustion chamber gets into the buffer tank through first extraction pipe and mixes with waste gas, thereby heat waste gas and buffer tank, when the temperature of buffer tank is higher than first temperature monitoring device's high temperature trigger value, first temperature monitoring device controls first extraction valve and closes, but the buffer tank can heat the waste gas that passes through.

The utility model discloses further set up to: and the buffer tank is also connected and communicated with a first fresh air pipe, and the first fresh air pipe is provided with a first fresh air valve.

According to the technical scheme, before the heat accumulating type thermal power incineration device is started to work, at least one branch air inlet pipe is communicated with the heat accumulating chamber by controlling each three-way switching valve, at least one branch exhaust pipe is communicated with the heat accumulating chamber, and hot air is input into the combustion chamber and the heat accumulating chamber through the first fresh air pipe, so that the heat accumulating type thermal power incineration device is preheated; when the heat accumulating type thermal incineration device works, if the temperature in the combustion chamber is overhigh, the waste gas valve can be closed, and then fresh air is input into the combustion chamber and the heat accumulating chamber through the first fresh air pipe so as to reduce the temperature in the combustion chamber and the heat accumulating chamber; when the waste gas preheating system cleans the heat accumulator, the fresh air can be supplied into the buffer tank by the first fresh air pipe to reduce the temperature of the hot air, so that the air inlet fan is prevented from being burnt out due to overhigh temperature of the hot air.

The utility model discloses further set up to: the three-way switching valve is a pneumatic three-way switching valve or an electromagnetic three-way switching valve.

Through the technical scheme, the method is low in cost, high in reaction speed and easy to maintain.

The utility model discloses further set up to: the heat accumulator is a ceramic honeycomb heat accumulator.

Through above-mentioned technical scheme, the heat accumulation is effectual, and heat transfer rate is high.

The utility model discloses further set up to: the burner is located in the center of the top of the combustion chamber.

Through the technical scheme, the organic matters in the combustion chamber can be ignited more easily.

To sum up, the utility model discloses a beneficial technological effect does:

1. the arrangement of the waste gas preheating system ensures that organic matters in the waste gas are not easy to condense in the air inlet pipeline and the heat accumulator.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure, 1, a combustion chamber; 2. a burner; 3. a regenerator; 31. a heat accumulator; 4. an air inlet and outlet pipe; 5. a three-way switching valve; 61. a main air inlet pipe; 62. an air intake fan; 63. a flame arrestor; 64. a gas inlet pipe; 65. an exhaust gas inlet pipe; 66. a first fresh air duct; 67. an exhaust gas valve; 68. a first fresh air valve; 71. a main exhaust pipe; 72. dividing an exhaust pipe; 81. a first outlet pipe; 82. a first extraction valve; 83. a buffer tank; 84. a first temperature monitoring device; 91. purging the fan; 92. a wind mixing box; 93. a second outlet pipe; 94. a purge tube; 95. a purge valve; 96. a second extraction valve; 97. a connecting pipe; 98. a second fresh air duct; 99. a second fresh air valve; 90. a second temperature monitoring device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, for the utility model discloses a device is burned to heat accumulation formula heating power of difficult jam sweeps through periodic high temperature, can be with the vaporization of the high boiling point material in the heat accumulator 31, lets in to burn in the combustion chamber 1, need not clean heat accumulator 31 by the manual work, has reduced the maintenance cost of equipment, has improved security, reliability, the purification rate of equipment. A heat accumulating type thermal incineration device comprises a combustion chamber 1, a combustor 2 arranged at the center of the top of the combustion chamber 1, at least two heat accumulating chambers 3 (three are taken as examples in the embodiment) arranged below the combustion chamber 1 and communicated with the combustion chamber 1, an air inlet pipeline communicated with the heat accumulating chambers 3, an exhaust pipeline communicated with the heat accumulating chambers 3, a waste gas preheating system and a self-cleaning system, wherein a heat accumulator 31 is arranged in each heat accumulating chamber 3, and preferably, the heat accumulator 31 is a ceramic honeycomb heat accumulator 31.

Referring to fig. 1, the bottom of each regenerator 3 is connected and communicated with an air inlet and outlet pipe 4, one end of the air inlet and outlet pipe 4, which is far away from the regenerator 3, is connected with a three-way switching valve 5, and specifically, one end of the air inlet and outlet pipe 4, which is far away from the regenerator 3, is connected and communicated with a reversing port of the three-way switching valve; the three-way switching valve 5 may be a pneumatic three-way switching valve or an electromagnetic three-way switching valve, and the pneumatic three-way switching valve 5 is taken as an example in this embodiment.

The air inlet pipeline comprises a main air inlet pipe 61, an air inlet fan 62 and a flame arrester 63 are installed on the main air inlet pipe 61, and an air outlet end of the main air inlet pipe 61 is connected with air inlets of the three-way switching valves 5 and communicated with air inlet pipes 64. The exhaust line includes a main exhaust pipe 71, and branch exhaust pipes 72 are connected between an intake end of the main exhaust pipe 71 and exhaust ports of the respective three-way switching valves 5.

Referring to fig. 1, the exhaust gas preheating system includes a first outlet pipe 81 and a first outlet valve 82 installed on the first outlet pipe 81, a buffer tank 83 is connected and communicated with one end of the total intake pipe 61 far from the branch intake pipe 64, a first temperature monitoring device 84 is installed on the buffer tank 83, and the first temperature monitoring device 84 is electrically connected with the first outlet valve 82; one end of the first outlet pipe 81 is connected and communicated with the combustion chamber 1, and the other end is connected and communicated with the buffer tank 83; an exhaust gas inlet pipe 65 and a first fresh air pipe 66 are connected to and communicated with the surge tank 83, a waste gas valve 67 is installed on the exhaust gas inlet pipe 65, and a first fresh air valve 68 is installed on the first fresh air pipe 66.

When the heat accumulating type thermal incineration device works, each three-way switching valve 5 can be continuously switched when the heat accumulating type thermal incineration device works, but at least one branch exhaust pipe 64 is ensured to be communicated with the heat accumulation chamber 3 and at least one branch exhaust pipe 72 is ensured to be communicated with the heat accumulation chamber 3; the waste gas continuously enters the corresponding heat storage chamber 3 through the air inlet pipeline to exchange heat with the heat storage body 31 (the waste gas is heated, and the heat storage body 31 is cooled); then the waste gas enters the combustion chamber 1, the combustible substances in the waste gas are ignited by the combustor 2 to form dischargeable gas, then the dischargeable gas enters the corresponding regenerator 3 to exchange heat with the heat accumulator 31 (the dischargeable gas is cooled and the heat accumulator 31 is heated), and the heat accumulator 31 continuously performs heat absorption and heat release processes through continuous switching of the three-way switching valves 5; in the above process, the first temperature monitoring device 84 detects the temperature of the buffer tank 83, and the first temperature monitoring device 84 is set with a high temperature trigger value and a bottom temperature trigger value, when the temperature of the buffer tank 83 is lower than the low temperature trigger value of the first temperature monitoring device 84, the first temperature monitoring device 84 controls the first lead-out valve 82 to open, hot gas in the combustion chamber 1 enters the buffer tank 83 through the first lead-out pipe 81 to mix with the exhaust gas, so as to heat the exhaust gas and the buffer tank 83, when the temperature of the buffer tank 83 is higher than the high temperature trigger value of the first temperature monitoring device 84, the first temperature monitoring device 84 controls the first lead-out valve 82 to close, but the buffer tank 83 heats the passing exhaust gas; because the waste gas will be heated when passing through the buffer tank 83, most of the oily organic matter with high boiling point in the waste gas is vaporized, so that the organic matter with boiling point in the waste gas is less prone to be condensed at the bottom of the air inlet pipeline, the air inlet and outlet pipe 4 and the heat accumulator 31.

In addition, before the heat accumulating type thermal incineration device is started to work, at least one branch air inlet pipe 64 is communicated with the heat accumulating chamber 3, at least one branch exhaust pipe 72 is communicated with the heat accumulating chamber 3 by controlling each three-way switching valve 5, and then hot air is input into the combustion chamber 1 and the heat accumulating chamber 3 through the first fresh air pipe 66, so that the heat accumulating type thermal incineration device is preheated; when the regenerative thermal incinerator is in operation, if the temperature in the combustion chamber 1 is too high, the waste gas valve 67 can be closed, and then fresh air can be input into the combustion chamber 1 and the regenerative chamber 3 through the first fresh air pipe 66 so as to reduce the temperature in the combustion chamber 1 and the regenerative chamber 3.

Referring to fig. 1, the self-cleaning system includes a purging blower 91, an air mixing box 92, a second outlet pipe 93 connected and communicated with the combustion chamber 1, and a plurality of purging pipes 94 respectively connected and communicated with the bottom of each regenerator 3; one end of the purging pipe 94 far away from the regenerator 3 is connected and communicated with an air outlet of the purging fan 91, and a purging valve 95 is mounted on the purging pipe 94; one end of the second outlet pipe 93, which is far away from the combustion chamber 1, is connected and communicated with the air mixing box 92, a second outlet valve 96 is mounted on the second outlet pipe 93, and the second outlet valve 96 and the first outlet valve 82 both adopt high-temperature valves; the air inlet end of the blowing fan 91 is connected with the air mixing box 92 and communicated with a connecting pipe 97; a second fresh air pipe 98 is also connected and communicated with the air mixing box 92, and a second fresh air valve 99 is installed on the second fresh air pipe 98.

When the organic matters attached to the bottom of the heat accumulator 31 are excessive, the purging fan 91, the second lead-out valve 96 and the second fresh air valve 99 can be opened, so that the hot air in the combustion chamber 1 is led into the air mixing box 92 to be mixed with the fresh air, and the temperature of the hot air is reduced; then hot gas enters the heat storage chamber 3 through the purging pipe 94 under the action of the purging fan 91 and directly blows the bottom of the heat storage body 31, so that organic matters attached to the bottom of the heat storage body 31 are vaporized and enter the combustion chamber 1, then the combustor 2 works to ignite the organic matters entering the combustion chamber 1, high-boiling-point substances in the heat storage body 31 can be vaporized through periodic high-temperature purging, the vaporized high-boiling-point substances are introduced into a hearth to be burned, and the heat storage body 31 is cleaned.

Referring to fig. 1, a second temperature monitoring device 90 is installed on the connection pipe 97, the second temperature monitoring device 90 is electrically connected to a second lead-out valve 96 and a second fresh air valve 99, and the second temperature monitoring device 90 can monitor the temperature of the gas flowing through the connection pipe 97; when the temperature of the gas flowing through the connecting pipe 97 is higher than the predetermined value, the second temperature monitoring device 90 controls the second lead-out valve 96 to be closed and controls the second fresh air valve 99 to be opened, so that the temperature of the gas flowing through the refining pipe is reduced; when the temperature of the gas flowing through the connection pipe 97 is lower than a predetermined value, the second temperature monitoring device 90 controls the second outlet valve 96 to be opened and the second fresh air valve 99 to be closed, so that the temperature of the gas flowing through the connection pipe 97 is increased. In this embodiment, the first temperature monitoring device 84 and the second temperature monitoring device 90 are both temperature sensors or temperature indicating controllers.

Certainly, when the self-cleaning system fails, a worker can perform high-temperature purging on the heat accumulator 31 through the waste gas preheating system, when the waste gas preheating system performs high-temperature purging on the heat accumulator 31, the waste gas valve 67 is in a closed state, the first lead-out valve 82, the first fresh air valve 68 and the air inlet fan 62 are all in an open state, the at least one branch air pipe 64 is communicated with the heat accumulator 3, and the at least one branch exhaust pipe 72 is communicated with the heat accumulator 3; the hot gas in the combustion chamber 1 is led out by the first lead-out valve 82 and mixed with fresh air in the buffer tank 83 for cooling, then is led into the regenerator 3 and directly blows the bottom of the regenerator 31, so that the organic matters attached to the bottom of the regenerator 31 are vaporized and enter the combustion chamber 1, then the combustor 2 works to enable the organic matters entering the combustion chamber 1 to be ignited, and finally the clean gas is discharged through the branch exhaust pipe 72.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a difficult heat accumulation formula thermal incineration device that blocks up, includes combustion chamber (1), sets up combustor (2) in combustion chamber (1), at least two settings are in combustion chamber (1) below and regenerator (3) and the air inlet pipeline and the exhaust pipe who communicates bottom regenerator (3) with regenerator (1), be provided with regenerator (31), characterized by in regenerator (3): still include waste gas preheating system, waste gas preheating system is including first outlet pipe (81) of intercommunication air inlet pipeline and combustion chamber (1), install first extraction valve (82) on first outlet pipe (81).

2. A non-clogging, heat accumulating thermal incineration apparatus according to claim 1, further comprising: the bottoms of the heat storage chambers (3) are connected and communicated with a gas inlet and outlet pipe (4), one end of the gas inlet and outlet pipe (4) far away from the heat storage chambers (3) is connected with a three-way switching valve (5), and the gas inlet and outlet pipe (4) is connected and communicated with a reversing port of the three-way switching valve (5);

the air inlet pipeline comprises a main air inlet pipe (61), an air inlet fan (62) is installed on the main air inlet pipe (61), and an air inlet branch pipe (64) is connected between an air outlet end of the main air inlet pipe (61) and an air inlet of the three-way switching valve (5);

the exhaust pipeline comprises a main exhaust pipe (71), and a branch exhaust pipe (72) is connected between the main exhaust pipe (71) and an exhaust port of the three-way switching valve (5);

an exhaust gas inlet pipe (65) is communicated with the air inlet end of the main air inlet pipe (61), and an exhaust gas valve (67) is installed on the exhaust gas inlet pipe (65); one end of the first lead-out pipe (81) far away from the combustion chamber (1) is communicated with the air inlet end of the main air inlet pipe (61).

3. A non-clogging, heat accumulating thermal incineration apparatus according to claim 2, further comprising: the air inlet end of the main air inlet pipe (61) is connected and communicated with a buffer tank (83), and the first lead-out pipe (81) and the waste gas inlet pipe (65) are connected and communicated with the buffer tank (83).

4. A non-clogging, heat accumulating thermal incineration apparatus according to claim 3, characterised in that: the buffer tank (83) is provided with a first temperature monitoring device (84) for detecting the temperature in the buffer tank, and the first temperature monitoring device (84) is electrically connected with the first lead-out valve (82).

5. A non-clogging, heat accumulating thermal incineration apparatus according to claim 3, characterised in that: the buffer tank (83) is also connected and communicated with a first fresh air pipe (66), and the first fresh air pipe (66) is provided with a first fresh air valve (68).

6. A non-clogging, heat accumulating thermal incineration apparatus according to claim 2, further comprising: the three-way switching valve (5) is a pneumatic three-way switching valve or an electromagnetic three-way switching valve.

7. A non-clogging, heat accumulating thermal incineration apparatus according to claim 1, further comprising: the heat accumulator (31) is a ceramic honeycomb heat accumulator (31).

8. A non-clogging, heat accumulating thermal incineration apparatus according to claim 1, further comprising: the burner (2) is positioned in the center of the top of the combustion chamber (1).