CN216814195U - Waste heat recoverer for waste gas catalytic combustion treatment equipment - Google Patents
Waste heat recoverer for waste gas catalytic combustion treatment equipment Download PDFInfo
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- CN216814195U CN216814195U CN202220163398.0U CN202220163398U CN216814195U CN 216814195 U CN216814195 U CN 216814195U CN 202220163398 U CN202220163398 U CN 202220163398U CN 216814195 U CN216814195 U CN 216814195U
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Abstract
The utility model belongs to the technical field of auxiliary equipment of waste gas catalytic combustion equipment, and particularly relates to a waste heat recoverer for waste gas catalytic combustion treatment equipment. Comprises a fan, a cold air pipe, a heat exchange pipe and a recovery pipe; the front end of the cold air pipe is connected with a fan, the front end of the heat exchange pipe is provided with a waste gas inlet, the front end of the recovery pipe is provided with an air outlet, and the air outlet is connected with a hot air inlet of the catalytic combustion equipment; also comprises an air duct; and a main spiral heat conducting fin is arranged between the outer wall of the cold air pipe and the inner wall of the heat exchange pipe. The utility model provides a waste heat recoverer for exhaust gas catalytic combustion treatment facility overall structure is simple light, according to actual demand, can be very convenient use in limited installation space, can effectively reduce current catalytic combustion equipment's heat emission, for realizing waste heat recovery utilizes, device stable in structure, and internal control mechanism is few, and whole production and maintenance cost are very low, are suitable for the transformation upgrading to each type catalytic combustion equipment.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment of waste gas catalytic combustion equipment, and particularly relates to a waste heat recoverer for waste gas catalytic combustion treatment equipment.
Background
The waste gas catalytic combustion equipment is environmental protection equipment which utilizes various catalysts to combust various industrial waste gases at high temperature so as to convert the industrial waste gases into harmless carbon dioxide and water or convert the industrial waste gases into low-pollution gases so as to facilitate further treatment, in order to ensure the catalytic combustion reaction to be continuously carried out and the effectiveness of the catalysts, the waste gases and the air are required to be heated to about 260-380 ℃ before entering a reaction chamber so as to react, the temperature of the reaction chamber is generally kept by adopting an electric heating or gas heating mode and the gases are heated, in fact, the waste gases can release a large amount of heat in the catalytic combustion process, therefore, the energy input can be effectively reduced by recycling through an internal thermal circulation mode, but most of the existing catalytic combustion equipment on the market is still old combustion or active heating equipment in the actual situation, and can not totally carry out the renewal in the short-term, the existence of these equipment has increased the consumption of energy such as electric energy or gas on the one hand, and on the other hand can lead to carrying a large amount of heats after the waste gas is discharged, need carry out harmless cooling treatment once more etc. not only lead to the waste gas treatment cost to increase, on the other hand also leads to the secondary consumption of the energy extravagant.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waste heat recoverer for waste gas catalytic combustion treatment equipment, which is used for improving the emission problem of old catalytic combustion equipment, realizing the preheating and recycling of waste gas after catalytic combustion, and is convenient and practical.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A waste heat recoverer for an exhaust gas catalytic combustion treatment device comprises a fan and further comprises: the heat exchanger comprises a cold air pipe 1 communicated with an air outlet of a fan, a heat exchange pipe 2 sleeved outside the cold air pipe 1, and a recovery pipe 3 sleeved outside the heat exchange pipe 2;
the front end of the cold air pipe 1 is connected with an air outlet of a fan, the front end of the heat exchange pipe 2 is provided with a waste gas inlet 2a, the waste gas inlet 2a is connected with an exhaust port of catalytic combustion equipment, the front end of the recovery pipe 3 is provided with an air outlet 3a, and the air outlet is connected with a hot air inlet of the catalytic combustion equipment;
the device also comprises an air duct 1a which connects the rear end of the cold air pipe 1 with the rear end of the recovery pipe 3; a main spiral heat conducting fin 4 is arranged between the outer wall of the cold air pipe 1 and the inner wall of the heat exchange pipe 2.
Present old-fashioned catalytic combustion equipment, including various horizontal box structures and vertical combustion tower structure originally, be subject to the demand of early industrial application, generally adopt fixed mounting structure, whole bulky, and supporting pipeline is numerous, because the waste gas after its burning generally can not directly discharge into the atmosphere, still need connect other equipment and handle and purify, consequently, the outside available installation space of equipment is less, simultaneously under the prerequisite that does not change original hardware structure, the equipment of newly inserting should be unlikely to make original pipeline length increase by a wide margin in order to avoid making original atmospheric pressure control and circulating device inefficacy. Based on this, the application provides a whole small in size compactness, the quality is light, the little waste heat recoverer of the whole size of pipeline, this waste heat recoverer can be convenient connect on all kinds of catalytic combustion equipment's gas vent, and through inside spiral conducting strip and the two-way heat transfer structure of pipe wall, make the heat of waste gas derive fast and be used for reacting gas's preheating, improve the problem of admitting air during the catalytic reaction, reduce the heating capacity that needs, and then realize energy saving and emission reduction's effect, the heat that waste heat recoverer can be fine absorbs the outer heat that exhaust gas carried of arranging, the work load of procedures such as subsequent cooling has been reduced, realize the cyclic utilization of the energy, this waste heat recoverer adaptability is wide, can be used for reforming transform all kinds of current catalytic combustion equipment, improve its economic benefits.
In a further improvement or preferred embodiment of the waste heat recoverer for the exhaust gas catalytic combustion treatment device, a pressure release valve 5a is arranged at the rear end of the cold air pipe 1.
The cold blast pipe rear side sets up the relief valve and is used for as the safety guarantee measure, and at the in-service operation, the inlet air temperature should keep constant temperature to control and regulation of temperature when the burning of being convenient for, the relief valve is used for when waste gas temperature risees and hot-blast demand reduces, utilizes the heat in the cold blast pipe rapid discharge waste heat recoverer, prevents that hot-blast temperature from exceeding standard and prevents the overheated damage of inner structure.
In a further improvement or preferred embodiment of the waste heat recoverer for the waste gas catalytic combustion treatment equipment, the air guide pipe 1a is led out from the side wall of the rear end of the cold air pipe 1 and then penetrates out of the heat exchange pipe 2. The penetrating type air guide pipeline is used for reducing the overall length of the gas circulation pipeline and reducing air resistance, and meanwhile, the structure is convenient to process and produce, and is beneficial to reducing the difficulty of the production process and reducing the production cost.
The further improvement or the preferred embodiment of the waste heat recoverer for the waste gas catalytic combustion treatment equipment also comprises an air supplementing pipe 1b for connecting the front end of the cold air pipe 1 with the front end of the recovery pipe 3; an electromagnetic valve 5b is arranged in the air supplementing pipe 1 b.
As mentioned above, in the actual production process, the constant temperature of hot air needs to be kept, so that the air volume needs to be reduced or the temperature of the hot air needs to be reduced when the temperature of the hot air is higher, and the air supplementing pipe is additionally arranged in the device and used for directly introducing unheated cold air into a hot air pipeline so as to realize the quick cooling of the hot air and improve the flexibility and the reliability of equipment.
In a further improvement or preferred embodiment of the waste heat recoverer for an exhaust gas catalytic combustion treatment device, the waste heat recoverer further comprises a secondary spiral heat conducting fin 6 arranged between the outer wall of the heat exchange tube 2 and the inner wall of the recovery tube 3.
The heat exchange efficiency can be further improved by utilizing the auxiliary spiral heat conducting fins, so that the whole length of the equipment can be further compressed or the waste heat recovery capability can be improved.
The beneficial effects are that:
the utility model provides a waste heat recoverer for exhaust gas catalytic combustion treatment facility overall structure is simple light, according to the actual demand, its whole length can be controlled in 1 ~ 2m at minimum, can be very convenient use in limited installation space, can effectively reduce current catalytic combustion equipment's heat emission, for realizing waste heat recovery utilizes, device stable in structure, internal control mechanism is few, the bulk production is very low with the maintenance cost, be suitable for the transformation upgrading to various types of catalytic combustion equipment.
Drawings
Fig. 1 is a schematic structural view of a waste heat recoverer for an exhaust gas catalytic combustion treatment apparatus.
Wherein the reference numerals include:
the device comprises a cold air pipe 1, an air guide pipe 1a, a heat exchange pipe 2, a waste gas inlet 2a, a recovery pipe 3, an air outlet 3a, a main spiral heat conducting fin 4, a pressure release valve 5a, an electromagnetic valve 5b, an auxiliary spiral heat conducting fin 6 and a fan 7.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The utility model provides a waste heat recoverer for exhaust gas catalytic combustion treatment facility, mainly used supporting all kinds of catalytic combustion exhaust gas treatment facilities, especially use the equipment of high heat emission of gas burning as the source of generating heat for reduce the heat of burning back gas, realize that the heat energy is first and utilized once more, reduce the heat emission, be used for hot-blast heating process with the waste heat of retrieving simultaneously, reduce catalytic combustion equipment's energy input, realize energy saving and emission reduction's effect.
This device is connected in exhaust gas combustion equipment's air inlet side for supplementary air need maintain the malleation, in order to guarantee that the air can get into the combustion chamber smoothly, consequently is equipped with fan 7, still includes: the heat exchanger comprises a cold air pipe 1 communicated with an air outlet of a fan 7, a heat exchange pipe 2 sleeved outside the cold air pipe 1, and a recovery pipe 3 sleeved outside the heat exchange pipe 2;
the front end of the cold air pipe 1 is connected with an air outlet of a fan 7, the front end of the heat exchange pipe 2 is provided with a waste gas inlet 2a, the waste gas inlet 2a is connected with an air outlet of catalytic combustion equipment, the front end of the recovery pipe 3 is provided with an air outlet 3a, and the air outlet is connected with a hot air inlet of the catalytic combustion equipment;
the device also comprises an air duct 1a which is connected with the rear end of the cold air pipe 1 and the rear end of the recovery pipe 3; a main spiral heat conducting fin 4 is arranged between the outer wall of the cold air pipe 1 and the inner wall of the heat exchange pipe 2.
For preventing the internal pressure of the device from being too high and for realizing the rapid heat dissipation in the device under the specific condition, the rear end of the cold air pipe 1 is provided with the pressure release valve 5a for utilizing the cold air pipe to rapidly discharge the heat in the waste heat recoverer when the temperature of the waste gas rises and the demand of hot air is reduced, and preventing the temperature of the hot air from exceeding the standard and preventing the internal structure from being damaged due to overheating.
Particularly, in the embodiment, the air recovery system further comprises an air supplementing pipe 1b for connecting the front end of the cold air pipe 1 with the front end of the recovery pipe 3; an electromagnetic valve 5b is arranged in the air supplementing pipe 1 b.
In the device, the air supplementing pipe is used for directly guiding unheated cold air into the hot air pipeline so as to realize the rapid temperature reduction and control of the hot air and improve the flexibility and reliability of the equipment.
In a further improvement or preferred embodiment of the waste heat recoverer for the waste gas catalytic combustion treatment equipment, the air guide pipe 1a is led out from the side wall of the rear end of the cold air pipe 1 and then penetrates out of the heat exchange pipe 2. The total length of the gas circulation pipeline can be reduced by using the penetrating type air guide pipeline, the air resistance is reduced, and meanwhile, the structure is convenient to process and produce, and is beneficial to reducing the difficulty of the production process and the compression cost.
In order to improve the heat exchange efficiency of the gas in heat exchange tube and the recovery tube, still including setting up the vice spiral conducting strip 6 between 2 outer walls of heat exchange tube and 3 inner walls of recovery tube in this embodiment, utilize vice spiral conducting strip 6 can further improve heat exchange efficiency to can select further compression equipment overall length, improve waste heat recovery ability, in order to satisfy the demand of littleer installation space and bigger recovery ability.
Based on aforementioned structure, the whole small in size of waste heat recoverer of this application, supporting pipeline is few, and consequently the required installation space of equipment is little, can not influence original catalytic combustion equipment and supporting equipment's overall arrangement and use.
When the device is used, waste gas generated after catalytic combustion flows from front to back through the heat exchange tube, is in a spiral motion mode under the limitation of the main spiral heat conducting fins, and forms heat exchange with the cold air tube and the heat exchange tube, the fan 7 replenishes cold air into the cold air tube 1, the cold air flows through the cold air tube from front to back, absorbs heat from the tube wall, then enters the rear end of the recovery tube through the air guide tube 1a, and absorbs heat from the outer wall of the heat exchange tube for reheating while flowing from back to front in the recovery tube, so that the heating treatment of the cold air is realized, and finally enters the air supply port of the catalytic combustion equipment from the air outlet 3a for use;
the pressure release valve 5a is opened when the internal pressure of the device is too high or the temperature of the device is too high, the pressure release valve is used for quickly releasing pressure or enabling external cold air to be quickly sent to the center of the equipment to flow through so as to realize quick temperature reduction, and the electromagnetic valve 5b can quickly and efficiently control the proportion of cold and hot air in the air outlet 3a so as to realize quick fine adjustment of the air outlet temperature of the temperature and meet the requirements of different processing modes by quickly controlling the air outlet temperature of the air outlet.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a waste heat recoverer for exhaust gas catalytic combustion treatment facility, includes the fan, its characterized in that still includes: the air conditioner comprises a cold air pipe (1) communicated with an air outlet of a fan, a heat exchange pipe (2) sleeved outside the cold air pipe (1), and a recovery pipe (3) sleeved outside the heat exchange pipe (2);
the front end of the cold air pipe (1) is connected with an air outlet of a fan, the front end of the heat exchange pipe (2) is provided with a waste gas inlet (2a), the waste gas inlet (2a) is connected with an exhaust port of catalytic combustion equipment, the front end of the recovery pipe (3) is provided with an air outlet (3a), and the air outlet is connected with a hot air inlet of the catalytic combustion equipment;
the air guide pipe (1a) is connected with the rear end of the cold air pipe (1) and the rear end of the recovery pipe (3); a main spiral heat conducting fin (4) is arranged between the outer wall of the cold air pipe (1) and the inner wall of the heat exchange pipe (2).
2. The waste heat recoverer for an exhaust gas catalytic combustion treatment apparatus according to claim 1, wherein a pressure release valve (5a) is provided at a rear end of the cold air duct (1).
3. The waste heat recoverer for an exhaust gas catalytic combustion treatment apparatus according to claim 1, wherein the gas guide pipe (1a) is led out from the side wall of the rear end of the cold air pipe (1) and then passes through the heat exchange pipe (2).
4. The waste heat recoverer for the exhaust gas catalytic combustion treatment device according to claim 1, further comprising an air supplementing pipe (1b) for connecting the front end of the cold air pipe (1) with the front end of the recovery pipe (3); an electromagnetic valve (5b) is arranged in the air supplementing pipe (1 b).
5. A waste heat recoverer for an exhaust gas catalytic combustion treatment apparatus according to claim 1, further comprising a secondary spiral heat conductive fin (6) provided between an outer wall of the heat exchange tube (2) and an inner wall of the recovery tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220163398.0U CN216814195U (en) | 2022-01-21 | 2022-01-21 | Waste heat recoverer for waste gas catalytic combustion treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220163398.0U CN216814195U (en) | 2022-01-21 | 2022-01-21 | Waste heat recoverer for waste gas catalytic combustion treatment equipment |
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| CN216814195U true CN216814195U (en) | 2022-06-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117065924A (en) * | 2023-10-16 | 2023-11-17 | 江苏恒博气力输送设备制造有限公司 | Material dust recycling device |
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- 2022-01-21 CN CN202220163398.0U patent/CN216814195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117065924A (en) * | 2023-10-16 | 2023-11-17 | 江苏恒博气力输送设备制造有限公司 | Material dust recycling device |
| CN117065924B (en) * | 2023-10-16 | 2023-12-19 | 江苏恒博气力输送设备制造有限公司 | Material dust recycling device |
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