CN220793149U - Heat accumulating type catalytic decomposition bed - Google Patents

Abstract

The utility model discloses a heat accumulating type catalytic decomposition bed, which comprises: the catalytic decomposition box is provided with an air inlet and an air outlet, and a heating device and a catalyst are arranged in the catalytic decomposition box; the heat conducting plate is fixed on the upper end surface of the catalytic decomposition box; the heat collecting pipeline is fixed on the upper end face of the heat conducting plate, and the left end and the right end of the heat collecting pipeline are respectively connected with a medium input pipe and a medium output pipe and are respectively used for inputting heat collecting medium into the heat collecting pipeline and outputting the heat collecting medium in the heat collecting pipeline. When the concentration of the waste gas is too high and excessive heat is generated in the catalytic decomposition tank, the heat-collecting medium can be conveyed into the heat-collecting pipeline through the medium input pipe, so that the heat-collecting medium flows in the heat-collecting pipeline, the heat-conducting plate absorbs the heat of the catalytic decomposition tank and then transfers the heat to the heat-collecting pipeline, then the heat-collecting plate exchanges heat with the flowing heat-collecting medium, and the heat-collecting medium absorbing the heat is output from the medium output pipe, so that the excessive heat of the catalytic decomposition tank is taken away, the overheat is prevented, and the heat-collecting catalytic decomposition bed is high in safety.

Description

Heat accumulating type catalytic decomposition bed

Technical Field

The utility model relates to the technical field of waste gas treatment equipment, in particular to a heat accumulating type catalytic decomposition bed.

Background

The regenerative catalytic combustion (RCO) is a method of decomposing organic exhaust gas into harmless small molecules such as carbon dioxide and water by using a catalyst, and is called as a regenerative catalytic combustion method because heat is consumed in the reaction. In the active carbon nitrogen desorption regeneration system, the catalytic decomposition bed is used for carrying out the next treatment on the organic waste gas desorbed and concentrated from the desorption bed, after the organic waste gas enters the catalytic decomposition bed, the organic waste gas is heated by an electric heating device arranged in the catalytic decomposition bed and is ignited under the action of a catalyst, the purification efficiency in the catalytic decomposition process can reach more than 97%, and carbon dioxide and water are generated after the catalytic decomposition and a large amount of heat is released. When the concentration of the organic waste gas reaches a certain concentration, the electric heating device of the catalytic decomposition bed does not need auxiliary heating. However, due to the unstable factors of the equipment, the concentration of the organic waste gas is likely to be raised temporarily, when the concentration of the organic waste gas is greatly higher than the required equilibrium concentration, redundant heat is generated in the catalytic decomposition bed, and if the heat cannot be timely dissipated, the catalytic decomposition bed is likely to be overheated, so that the potential safety hazard is high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a heat accumulating type catalytic decomposition bed which has an overheat prevention function and high safety.

According to an embodiment of the utility model, a regenerative catalytic decomposition bed comprises:

the catalytic decomposition box is provided with an air inlet and an air outlet, and a heating device and a catalyst are arranged in the catalytic decomposition box;

the heat conducting plate is fixed on the upper end face of the catalytic decomposition box;

the heat collecting pipeline is fixed on the upper end face of the heat conducting plate, and the left end and the right end of the heat collecting pipeline are respectively connected with a medium input pipe and a medium output pipe and are respectively used for inputting heat collecting medium into the heat collecting pipeline and outputting the heat collecting medium in the heat collecting pipeline.

The heat accumulating type catalytic decomposition bed provided by the embodiment of the utility model has at least the following beneficial effects:

through setting up above-mentioned structure, when waste gas concentration is too high and lead to the catalysis to decompose the incasement and produce too much heat, accessible medium input tube is carried in to getting the heat pipe and is got the heat medium, makes and gets the heat medium and flow in getting the heat pipe, and the heat transfer is given to the heat pipe after the heat of catalytic decomposition case is absorbed to the heat conduction board, then carries out heat transfer with the heat medium that gets that flows, has absorbed the heat and has got the heat medium and export from the medium output tube again to take away the unnecessary heat of catalytic decomposition case, prevent that it from overheated and causing the potential safety hazard, the security is high.

According to some embodiments of the utility model, the lower end surface of the heat conducting plate is provided with a plurality of heat conducting fins, and the heat conducting fins extend into the catalytic decomposition box.

According to some embodiments of the utility model, a flow regulating valve is connected between the medium input pipe and the heat collecting pipe.

According to some embodiments of the utility model, the heat-collecting pipe is in a serpentine shape, and comprises a plurality of bending units which are arranged left and right and are connected end to end, wherein each bending unit consists of a straight pipe section and an arc section connected to one end of the straight pipe section.

According to some embodiments of the utility model, an embedding groove is formed on the upper end surface of the heat conducting plate corresponding to the heat collecting pipe, and is used for embedding the heat collecting pipe so as to support and transversely position the heat collecting pipe, and a detachable limiting piece is arranged on the heat conducting plate and is used for propping against the upper end of the heat collecting pipe to vertically limit the heat collecting pipe.

According to some embodiments of the utility model, the limiting piece is provided with a limiting strip, and a limiting groove for partial embedding of the limiting strip is formed in the lower end face of the limiting strip corresponding to any straight pipe section.

According to some embodiments of the utility model, the heat conducting plate is provided with a heat radiating unit, the heat radiating unit comprises a plurality of groups of heat radiating fins which are arranged at intervals left and right, the heat radiating fins are fixed on the upper end face of the heat conducting plate, one group of heat radiating fins comprises a plurality of heat radiating fins which are arranged at intervals front and back, and one side of the heat radiating unit is provided with a heat radiating fan for blowing air to the heat radiating unit to radiate heat.

According to some embodiments of the utility model, the heat conducting plate is provided with a wind scooper, the wind scooper is arranged on the periphery of the heat radiating unit, a wind guiding channel extending leftwards and rightwards is formed between the wind scooper and the heat conducting plate, two ends of the wind guiding channel are respectively provided with an air inlet and an air outlet, and the heat radiating fan is arranged at the air inlet.

According to some embodiments of the utility model, a cover plate is covered at the air inlet of the air guide channel, the cooling fan is connected with the cover plate through a fastener, and a wind through hole is formed in the cover plate corresponding to the cooling fan.

According to some embodiments of the utility model, the wind scooper comprises a plurality of left and right arranged cover units, adjacent sides of any two adjacent cover units are attached, and the cover units are detachably connected with the heat conducting plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an installation structure of a heat conducting plate, a heat collecting pipe and a heat dissipating fan according to an embodiment of the present utility model;

FIG. 3 is an exploded view of the mounting structure of the heat conducting plate and the heat dissipating fan according to the embodiment of the present utility model;

fig. 4 is an exploded view of the installation structure of the heat conducting plate and the heat collecting pipe according to the embodiment of the utility model.

Reference numerals:

a catalytic decomposition tank 100;

the heat conduction plate 200, the caulking groove 201, the heat conduction fins 210, the limit strips 220, the limit grooves 221, the heat dissipation unit 230, the heat dissipation fins 231, the heat dissipation fan 240, the air guide cover 250, the cover body unit 251, the cover plate 260, the stud 270 and the tightening nut 271;

a heat collecting pipeline 300, a medium input pipe 310, a medium output pipe 320 and a flow regulating valve 330.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, a regenerative catalytic decomposition bed according to an embodiment of the present utility model includes: a catalytic decomposition tank 100, a heat-conducting plate 200 and a heat-collecting pipeline 300.

The catalytic decomposition box 100 is provided with an air inlet and an air outlet, a heating device and a catalyst are arranged in the catalytic decomposition box 100, after the organic waste gas enters the catalytic decomposition box 100, the organic waste gas is heated by the heating device arranged in the catalytic decomposition box, is combusted and decomposed under the action of the catalyst, and is discharged from the air outlet.

The heat conductive plate 200 is fixed to the upper end surface of the catalytic decomposition tank 100 for absorbing heat in the catalytic decomposition tank 100.

The heat collecting pipe 300 is fixed on the upper end surface of the heat conducting plate 200, the heat collecting pipe 300 can absorb heat of the heat conducting plate 200, the left end and the right end of the heat collecting pipe 300 are respectively connected with a medium input pipe 310 and a medium output pipe 320, the medium input pipe 310 is used for inputting a heat collecting medium into the heat collecting pipe 300, and the medium output pipe 320 is used for outputting the heat collecting medium in the heat collecting pipe 300, so that the heat collecting medium flows in the heat collecting pipe 300 to take away heat. It is obvious that the medium input pipe 310 and the medium output pipe 320 are both connected with a medium storage tank, and a medium pump (not shown) is further arranged between the medium input pipe 310 and the medium storage tank for pumping the heat taking medium.

In the heat accumulating type catalytic decomposition bed of the embodiment of the utility model, when the concentration of the waste gas is too high and the catalytic decomposition box 100 generates excessive heat, the medium input pipe 310 can be used for conveying the heat taking medium into the heat taking pipeline 300, so that the heat taking medium flows in the heat taking pipeline 300, the heat conducting plate 200 absorbs the heat of the catalytic decomposition box 100 and then transfers the heat to the heat taking pipeline 300, then the heat conducting plate exchanges heat with the heat taking medium flowing in the heat taking pipeline 300, and the heat taking medium which absorbs the heat is output from the medium output pipe 320, so that the excessive heat of the catalytic decomposition box 100 is taken away, the potential safety hazard caused by overheating is prevented, and the safety is high.

It is conceivable that the heat taking medium may be water, oil or gas, etc. In addition, the heat collecting pipe 300 and the heat conducting plate 200 are made of heat conducting materials resistant to high temperature.

In some embodiments, a heat exchanger may be further disposed on the medium output pipe 320 to store or utilize heat, thereby reducing energy waste.

Referring to fig. 1, it can be understood that the lower end surface of the heat conducting plate 200 is provided with a plurality of heat conducting fins 210, and the heat conducting fins 210 extend into the catalytic decomposition tank 100, so that the heated area of the heat conducting plate 200 can be increased, and more heat can be absorbed, which is beneficial to rapid heat conduction.

Referring to fig. 1, it can be understood that a flow control valve 330 is connected between the medium input pipe 310 and the heat collecting pipe 300, and the flow of the heat collecting medium in the heat collecting pipe 300 is controlled by the flow control valve 330, so as to control the amount of heat exchange, when the amount of the residual heat generated by the catalytic decomposition tank 100 is large, the flow of the heat collecting medium in the heat collecting pipe 300 can be made large to take away more heat, and when the amount of the residual heat generated by the catalytic decomposition tank 100 is small, the flow of the heat collecting medium in the heat collecting pipe 300 can be made small to take away less heat, so that the heat in the catalytic decomposition tank 100 can be kept in a balanced and stable state.

In some embodiments, to facilitate controlling the flow of the heat-collecting medium in the heat-collecting pipe 300, the flow-regulating valve 330 is an electromagnetic valve, and a temperature detecting device may be further provided to detect the temperature in the catalytic decomposition tank 100, so as to determine whether excessive heat is generated in the catalytic decomposition tank 100.

Referring to fig. 3 and 4, it can be understood that the heat collecting pipe 300 has a serpentine shape, and includes a plurality of bending units arranged left and right and connected end to end, wherein each bending unit is composed of a straight pipe section and an arc section connected to one end of the straight pipe section, and compared with the heat collecting pipe, the heat collecting pipe 300 has the advantages of increasing the residence time of the heat collecting medium in the heat collecting pipe 300, along with wide and uniform heat collecting medium flowing range, good heat exchanging effect and convenient layout. It will be appreciated that the heat extraction pipe 300 is provided with straight extension pipes at both the left and right ends thereof to facilitate connection with the corresponding medium inlet pipe 310 or medium outlet pipe 320.

Referring to fig. 3 and 4, it can be understood that the upper end surface of the heat conducting plate 200 is provided with an embedding groove 201 corresponding to the heat collecting pipe 300, for embedding the lower half of the heat collecting pipe 300 to support and laterally position the heat collecting pipe 300, and obviously, the arrangement of the embedding groove 201 can also enable a larger contact area between the heat collecting pipe 300 and the heat conducting plate 200 to improve the heat transfer effect; in addition, a detachable limiting piece is arranged on the heat conducting plate 200 and is used for vertically limiting the heat collecting pipeline 300 against the upper end of the heat collecting pipeline 300, so that the heat collecting pipeline 300 is mounted on the heat conducting plate 200 by matching with the caulking groove 201, and the heat collecting pipeline 300 is simple in structure and convenient to mount and dismount.

It will be appreciated that in order for the heat extraction duct 300 to have a relatively stable structure, the caulking groove 201 needs to satisfy the condition of being able to accommodate the insertion of the lower half of all the curved units of the heat extraction duct 300.

Referring to fig. 3 and 4, it can be understood that the limiting member is provided with a limiting bar 220, the limiting bar 220 extends leftwards and rightwards, the lower end surface of the limiting bar 220 is provided with a limiting groove 221 for partially embedding the limiting bar corresponding to any straight pipe section of the heat collecting pipe 300, and the cross section of the limiting groove 221 is semicircular and is matched with the outer diameter of the straight pipe section of the heat collecting pipe 300, so that the upward displacement of the heat collecting pipe 300 can be very stably limited, and the heat collecting pipe 300 is fixed; specifically, at least two studs 270 are fixed on the upper end surface of the heat-conducting plate 200, holes for the studs 270 to pass through are correspondingly formed in the limit bars 220, tightening nuts 271 are connected to the studs 270 in a threaded manner, the tightening nuts 271 abut against the upper end surface of the limit bars 220, so that the limit bars 220 are fixed on the heat-conducting plate 200, when the heat-collecting pipe 300 needs to be disassembled, all the tightening nuts 271 are unscrewed, the limit bars 220 are removed, and then the heat-collecting pipe 300 can be taken out upwards.

Referring to fig. 3 and 4, it can be understood that the heat conducting plate 200 is provided with a heat dissipating unit 230, the heat dissipating unit 230 includes a plurality of groups of heat dissipating fins 231 arranged at intervals left and right, the heat dissipating fins 231 are all fixed on the upper end surface of the heat conducting plate 200, one group of heat dissipating fins 231 includes a plurality of heat dissipating fins 231 arranged at intervals front and back, a heat dissipating fan 240 is arranged at one side of the heat dissipating unit 230 for blowing air to the heat dissipating unit 230 to dissipate heat, when the amount of excess heat generated by the catalytic decomposition tank 100 is excessive, the heat exchanging by simply using the heat collecting pipeline 300 may not be enough to quickly take away the excess heat, at this time, the heat dissipating fan 240 can be started, the heat of the heat conducting plate 200 is absorbed by the heat dissipating fins 231, and meanwhile, the heat dissipating fins 240 are blown to take away the heat generated by the heat dissipating fins 231 for auxiliary heat dissipation, so that the excessive heat generated by the catalytic decomposition tank 100 can be quickly taken away in cooperation with the heat collecting pipeline 300, and the potential safety hazards caused by overheating of equipment can be prevented. As shown in fig. 3 and 4, the thickness direction of the heat dissipation fins 231 is the same as the arrangement direction of the plurality of heat dissipation fins 231 in the same group, and the heat dissipation fan 240 blows air from left to right, so that the air can contact with the wall surfaces of the heat dissipation fins 231 more to take away heat.

Referring to fig. 2 to 4, it can be understood that the heat conducting plate 200 is provided with a wind guiding cover 250, the wind guiding cover 250 covers the periphery of the heat dissipating unit 230, and a wind guiding channel extending from left to right is formed between the wind guiding cover 250 and the heat conducting plate 200, specifically, all the heat dissipating fins 231 of the heat dissipating unit 230 are located at the inner sides of the corresponding wind guiding channels, two ends of the wind guiding channel are respectively provided with an air inlet and an air outlet, the heat dissipating fan 240 is arranged at the air inlet, and the wind guiding cover 250 is provided to form the wind guiding channel, so that a certain guiding and covering effect can be played on the wind blown by the heat dissipating fan 240, and the heat dissipating effect on the heat dissipating fins 231 is improved.

In some specific embodiments, as shown in fig. 2 and fig. 3, the limiting bar 220 is located at a middle position of the front and rear ends of the heat collecting pipe 300, two heat dissipating units 230 are provided and distributed on the front and rear sides of the limiting bar 220, air guiding covers 250 are formed with air guiding channels on the front and rear sides of the limiting bar 220, the two air guiding channels are respectively corresponding to the two heat dissipating units 230, and multiple groups of heat dissipating fins 231 of the heat dissipating units 230 are distributed in a left-right staggered manner with the straight pipe sections of the heat collecting pipe 300, so that the layout is reasonable. Obviously, the detachable connection of the air guiding cover 250 can facilitate the subsequent disassembly and assembly of the heat collecting pipeline 300.

Referring to fig. 2 and 3, it can be understood that the cover plate 260 is covered at the air inlet of the air guiding channel of the air guiding cover 250, specifically, in this embodiment, the cover plate 260 is L-shaped, the cover plate 260 is connected with the air guiding cover 250 through a fastener, and the cooling fan 240 is connected with the cover plate 260 through a fastener, so that the cooling fan 240 can be detachably fixed on the air guiding cover 250, so as to facilitate the disassembly and assembly of the cooling fan 240, and obviously, the cover plate 260 is provided with a wind through hole corresponding to the cooling fan 240, so that the wind of the cooling fan 240 passes through and enters the air guiding channel.

Referring to fig. 2 and 3, it can be understood that the air guiding cover 250 includes a plurality of cover units 251 arranged left and right, adjacent sides of any two adjacent cover units 251 are attached, and the cover units 251 are detachably connected with the heat conducting plate 200, so that the air guiding cover 250 is separately arranged into a plurality of cover units 251. It is conceivable that the cover unit 251 may be connected to the limit bar 220 by a fastener, or may be directly connected to the heat conductive plate 200 by a fastener.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A regenerative catalytic decomposition bed, comprising:

the catalytic decomposition box (100) is provided with an air inlet and an air outlet, and a heating device and a catalyst are arranged in the catalytic decomposition box;

a heat conducting plate (200) fixed on the upper end surface of the catalytic decomposition tank (100);

the heat-collecting pipeline (300) is fixed on the upper end face of the heat-conducting plate (200), and the left end and the right end of the heat-collecting pipeline (300) are respectively connected with a medium input pipe (310) and a medium output pipe (320) which are respectively used for inputting a heat-collecting medium into the heat-collecting pipeline (300) and outputting the heat-collecting medium in the heat-collecting pipeline (300).

2. The regenerative catalytic decomposition bed of claim 1, wherein: the lower end face of the heat conducting plate (200) is provided with a plurality of heat conducting fins (210), and the heat conducting fins (210) extend into the catalytic decomposition box (100).

3. The regenerative catalytic decomposition bed of claim 1, wherein: a flow regulating valve (330) is connected between the medium input pipe (310) and the heat collecting pipe (300).

4. The regenerative catalytic decomposition bed of claim 1, wherein: the heat-collecting pipeline (300) is in a snake shape and comprises a plurality of bending units which are arranged left and right and are connected end to end, and each bending unit consists of a straight pipe section and an arc section connected to one end of the straight pipe section.

5. The regenerative catalytic decomposition bed of claim 4, wherein: the heat conduction plate (200) is provided with an embedding groove (201) corresponding to the heat extraction pipeline (300) on the upper end face of the heat conduction plate (200) for embedding the heat extraction pipeline (300) so as to support and transversely position the heat extraction pipeline (300), and the heat conduction plate (200) is provided with a detachable limiting piece for vertically limiting the heat extraction pipeline (300) against the upper end of the heat extraction pipeline (300).

6. The regenerative catalytic decomposition bed of claim 5, wherein: the limiting piece is provided with a limiting strip (220), and a limiting groove (221) for partial embedding of the limiting strip (220) is formed in the lower end face of the limiting strip corresponding to any straight pipe section.

7. The regenerative catalytic decomposition bed of claim 1, wherein: the heat conducting plate (200) is provided with a heat radiating unit (230), the heat radiating unit (230) comprises a plurality of groups of heat radiating fins (231) which are arranged left and right at intervals, the heat radiating fins (231) are fixed on the upper end face of the heat conducting plate (200), one group of heat radiating fins (231) comprises a plurality of heat radiating fins (231) which are arranged front and back at intervals, and one side of the heat radiating unit (230) is provided with a heat radiating fan (240) which is used for blowing air to the heat radiating unit (230) to radiate heat.

8. The regenerative catalytic decomposition bed of claim 7, wherein: the heat conduction plate (200) is provided with a wind scooper (250), the wind scooper (250) is covered on the periphery of the heat dissipation unit (230), a wind guide channel extending leftwards and rightwards is formed between the wind scooper and the heat conduction plate (200), an air inlet and an air outlet are respectively formed at two ends of the wind guide channel, and the heat dissipation fan (240) is arranged at the air inlet.

9. The regenerative catalytic decomposition bed of claim 8, wherein: the air guide cover (250) is covered at the air inlet of the air guide channel and is provided with a cover plate (260), the cooling fan (240) is connected with the cover plate (260) through a fastener, and the cover plate (260) is provided with a through-air hole corresponding to the cooling fan (240).

10. The regenerative catalytic decomposition bed of claim 8, wherein: the air guide cover (250) comprises a plurality of cover body units (251) which are arranged left and right, wherein any two adjacent side edges of the cover body units (251) are attached, and the cover body units (251) are detachably connected with the heat conducting plate (200).