CN220828860U - Heat accumulating type thermal oxidation furnace - Google Patents
Heat accumulating type thermal oxidation furnace Download PDFInfo
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- CN220828860U CN220828860U CN202322439131.7U CN202322439131U CN220828860U CN 220828860 U CN220828860 U CN 220828860U CN 202322439131 U CN202322439131 U CN 202322439131U CN 220828860 U CN220828860 U CN 220828860U
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- heat accumulating
- chambers
- sealing plate
- push rod
- spring
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 20
- 230000003647 oxidation Effects 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 230000001172 regenerating effect Effects 0.000 claims description 8
- 239000004519 grease Substances 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005338 heat storage Methods 0.000 description 22
- 239000000919 ceramic Substances 0.000 description 12
- 239000002912 waste gas Substances 0.000 description 12
- 238000009825 accumulation Methods 0.000 description 9
- 239000011232 storage material Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a heat accumulating type thermal oxidation furnace, which aims to enable a sealing plate to elastically stretch up and down, ensure a sealing effect and reduce debugging difficulty, and adopts the technical scheme that: the heat accumulating type thermal oxidation furnace comprises a furnace body, an air inlet pipeline and an air outlet pipeline, wherein the furnace body comprises three heat accumulating chambers which are arranged at intervals and a combustion chamber which is communicated with the three heat accumulating chambers, the bottoms of the heat accumulating chambers are provided with air converging chambers, the air inlet pipeline and the air outlet pipeline are respectively provided with a connecting pipe orifice which is communicated with the air converging chambers, the air converging chambers are provided with lifting valves which are in one-to-one correspondence with the connecting pipe orifices, the lifting valves comprise annular baffle plates which are fixed on the corresponding connecting pipe orifices and sealing plates which are positioned above the annular baffle plates, and the sealing plates are driven by a driving device to lift; the output of drive arrangement is equipped with the push rod of vertical arrangement, is fixed with the ring flange on the push rod, and the circumference equipartition has a plurality of guide arms on the ring flange, and the cover is equipped with first spring on the guide arm, belongs to exhaust-gas treatment technical field.
Description
Technical Field
The utility model belongs to the technical field of waste gas treatment, and particularly relates to a heat accumulating type thermal oxidation furnace.
Background
Waste gas carrying volatile organic compounds is generally treated by a thermal oxidation furnace, and the volatile organic compounds are oxidized and decomposed into carbon dioxide and water in a combustion chamber, so that the waste gas is harmless; the traditional thermal oxidation furnace adopts a lift valve to control the opening and closing of a pipeline, the lift valve is generally hard-sealed, the lifting precision of a valve plate needs to be well controlled to ensure the sealing effect, and the debugging is difficult.
Aiming at the situation, CN109579030A is a novel energy-saving environment-friendly thermal oxidation furnace RTO device, which comprises an upper furnace body and a lower furnace body, wherein the upper furnace body comprises an upper furnace body shell, a heat accumulating ceramic is arranged at the lower part of the upper furnace body, and a honeycomb heat accumulator is arranged below the heat accumulating ceramic; the lower furnace body comprises a lifting valve arranged at the upper part of the lower furnace body, the lifting valve comprises an annular valve seat, the annular valve seat is provided with an inner side wall and an outer side wall which are perpendicular to the supporting plate, an annular elastic sealing ring is arranged between the inner side wall and the outer side wall, and the elastic sealing ring is extruded when the valve plate is pressed down and simultaneously contacts with the upper end of the outer side wall of the annular valve seat;
Among the above-mentioned RTO device, lower furnace body comes with last furnace body intercommunication through the poppet valve, and its structure of optimizing the poppet valve adopts elastic sealing ring to realize sealedly, compares hard sealedly, and this kind of structure debugging is got up fairly easily, because elastic sealing ring can elastically stretch out and draw back, but elastic sealing ring is in high temperature, and very easy inefficacy can influence the life of poppet valve.
Disclosure of utility model
The utility model mainly aims to provide a heat accumulating type thermal oxidation furnace, which aims to enable a sealing plate to elastically stretch up and down, ensure a sealing effect and reduce debugging difficulty.
According to a first aspect of the utility model, there is provided a regenerative thermal oxidation furnace, comprising a furnace body, an air inlet pipeline and an air outlet pipeline, wherein the furnace body comprises three regenerators which are arranged at intervals and a combustion chamber which is communicated with the three regenerators, the bottoms of the regenerators are provided with air collecting chambers, the air inlet pipeline and the air outlet pipeline are respectively provided with a connecting pipe orifice which is communicated with the air collecting chambers, the air collecting chambers are provided with lifting valves which are in one-to-one correspondence with the connecting pipe orifices, the lifting valves comprise annular baffle plates which are fixed on the corresponding connecting pipe orifices and sealing plates which are positioned above the annular baffle plates, and the sealing plates are driven by a driving device to lift;
The output of drive arrangement is equipped with the push rod of vertical arrangement, be fixed with the ring flange on the push rod, the ring flange is located the top of closing plate, ring flange, push rod and closing plate coaxial arrangement, the circumference equipartition has a plurality of guide arms on the ring flange, the guide arm with closing plate sliding fit, the cover is equipped with first spring on the guide arm, first spring is located the ring flange with between the closing plate.
In the regenerative thermal oxidation furnace, the guide rod is divided into a head part, a guide column section and a thread section from bottom to top, the thread section is fixedly connected with the flange plate, the guide column section is in sliding fit with the sealing plate, and the head part is used for preventing the sealing plate from being separated from the guide rod.
In the heat accumulating type thermal oxidation furnace, the sealing plate is provided with a through hole, the through hole is in sliding fit with the push rod, the push rod is provided with a second spring, and the second spring is located between the flange plate and the sealing plate.
In the heat accumulating type thermal oxidation furnace, the top surface of the sealing plate is provided with an annular groove, the annular groove surrounds the through hole and is communicated with the through hole, and high-temperature-resistant grease is filled in the annular groove.
The regenerative thermal oxidation furnace further comprises a return pipe, wherein the return pipe is provided with a branch pipe communicated with the converging cavity, and the branch pipe is provided with an electric valve.
One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:
According to the utility model, the flange plate is arranged on the push rod, the sealing plate can move up and down elastically by utilizing the guide rod and the first spring, when the sealing plate is pressed down to be in contact with the annular baffle plate to realize sealing, the first spring is compressed by the sealing plate, the sealing plate is tightly attached to the annular baffle plate by utilizing the first spring, and based on the structure, the debugging is simpler, the sealing plate does not need to be kept at higher lifting precision, and a rubber sealing ring is not adopted, so that the sealing failure of the lifting valve in high temperature is not worried;
The setting of a plurality of guide arms and first spring is mainly when letting the closing plate push down more balanced, lets the closing plate can not slope, and the produced elastic force of first spring can be less, then, lets closing plate and push pedal sliding fit also to set up the second spring, the second spring can let the closing plate support the annular baffle, and the closing plate is also more stable when removing.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a schematic view of a first embodiment of the present utility model;
FIG. 2 is a cross-sectional view of the structure of a poppet valve according to a first embodiment of the present utility model;
fig. 3 is a partial enlarged view of H of fig. 2 according to the first embodiment of the present utility model.
Wherein reference numerals for the respective figures:
1. A furnace body; 11. a regenerator; 12. a combustion chamber; 13. a gas collection chamber; 2. an air intake duct; 3. an air outlet pipe; 4. a connecting pipe orifice; 5. a poppet valve; 51. an annular baffle; 52. a sealing plate; 521. a through hole; 53. a driving device; 54. a push rod; 541. a flange plate; 55. a guide rod; 56. a first spring; 57. a second spring; 6. a return pipe; 61. and a branch pipe.
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 exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.
Referring to fig. 1 to 3, in one embodiment of the present utility model, a regenerative thermal oxidation furnace includes a furnace body 1, an air inlet pipe 2 and an air outlet pipe 3, wherein the furnace body 1 includes three regenerators 11 arranged at intervals and a combustion chamber 12 communicating with the three regenerators 11, a gas collecting chamber 13 is arranged at the bottom of the regenerators 11, connecting pipe orifices 4 communicating with the gas collecting chamber 13 are arranged on the air inlet pipe 2 and the air outlet pipe 3, poppet valves 5 in one-to-one correspondence with the connecting pipe orifices 4 are arranged on the gas collecting chamber 13, ceramic heat storage materials are filled in the regenerators 11, a return pipe 6 is arranged on the return pipe 6, a branch pipe 61 communicating with the gas collecting chamber 13 is arranged on the branch pipe 61, and an electric valve is arranged on the branch pipe 61;
The combustion chamber 12 is divided into an A regenerator, a B regenerator and a C regenerator;
The poppet valves 5 of the air inlet pipeline 2 corresponding to the A regenerator, the B regenerator and the C regenerator are divided into a D1 poppet valve, a D2 poppet valve and a D3 poppet valve;
The poppet valves 5 of the air outlet pipeline 3 corresponding to the A regenerator, the B regenerator and the C regenerator are divided into an E1 poppet valve, an E2 poppet valve and an E3 poppet valve;
The electric valves of the return pipe 6 corresponding to the A heat accumulation chamber, the B heat accumulation chamber and the C heat accumulation chamber are divided into an F1 electric valve, an F2 electric valve and an F3 electric valve;
The first stage: the D1 poppet valve is opened, the E2 poppet valve is opened, the F3 electric valve is opened, the rest is closed, waste gas enters the air inlet pipeline 2, the waste gas enters the A regenerator through the D1 poppet valve, and then reaches the combustion chamber 12 for heating and oxidization; part of the generated hot air flow enters the B heat accumulation chamber, the ceramic heat accumulation material of the B heat accumulation chamber absorbs heat, and the hot air flow is discharged from the E2 poppet valve into the air outlet pipeline 3; the other part of hot air flows into the C heat storage chamber, the ceramic heat storage material in the C heat storage chamber absorbs heat, the hot air flows into the return pipe 6 from the F3 electric valve, the return pipe 6 conveys the hot air back to the A heat storage chamber to promote the flow of waste gas, and meanwhile, the temperature of the ceramic heat storage material in the A heat storage chamber is increased;
And a second stage: d2 poppet valve is opened, E3 poppet valve is opened, F1 electric valve is opened, the rest is closed, waste gas enters the air inlet pipeline 2, waste gas enters the B regenerator through D2 poppet valve, and then reaches the combustion chamber 12 for heating and oxidization; part of the generated hot air flow enters a C heat accumulation chamber, ceramic heat accumulation materials of the C heat accumulation chamber absorb heat, and the hot air flow is discharged from an E3 lifting valve into an air outlet pipeline 3; the other part of hot air flows into the A heat storage chamber, the ceramic heat storage material in the A heat storage chamber absorbs heat, the hot air flows into the return pipe 6 from the F1 electric valve, the return pipe 6 conveys the hot air back to the B heat storage chamber to promote the flow of waste gas, and meanwhile, the temperature of the ceramic heat storage material in the B heat storage chamber is increased;
And a third stage: d3 poppet valve is opened, E1 poppet valve is opened, F2 electric valve is opened, the rest is closed, waste gas enters the air inlet pipeline 2, the waste gas enters the C regenerator through the D3 poppet valve, and then reaches the combustion chamber 12 for heating and oxidization; part of the generated hot air flow enters a C heat storage chamber, ceramic heat storage materials of the C heat storage chamber absorb heat, and the hot air flow is discharged from an E1 poppet valve into an air outlet pipeline 3; the other part of hot air flows into the B heat storage chamber, the ceramic heat storage material in the B heat storage chamber absorbs heat, the hot air flows into the return pipe 6 from the F2 electric valve, the return pipe 6 conveys the hot air back to the C heat storage chamber to promote the flow of waste gas, and meanwhile, the temperature of the ceramic heat storage material in the C heat storage chamber is increased;
In operation, the first, second and third stages are cycled back and forth to continuously treat the exhaust.
In the present embodiment, the poppet 5 includes an annular barrier 51 fixed to the corresponding connection nozzle 4 and a sealing plate 52 positioned above the annular barrier 51, the sealing plate 52 being lifted and lowered by the driving of the driving device 53;
The output end of the driving device 53 is provided with a push rod 54 which is vertically arranged, a flange 541 is fixed on the push rod 54, the flange 541 is positioned above the sealing plate 52, the flange 541, the push rod 54 and the sealing plate 52 are coaxially arranged, a plurality of guide rods 55 are circumferentially and uniformly distributed on the flange 541, the guide rods 55 are in sliding fit with the sealing plate 52, a first spring 56 is sleeved on the guide rods 55, and the first spring 56 is positioned between the flange 541 and the sealing plate 52;
The guide rod 55 is used for limiting, ensures that the sealing plate 52 can only move up and down, enables the sealing plate 52 to move up and down elastically based on the first spring 56, when the sealing plate 52 is pressed down to be in contact with the annular baffle plate 51 to realize sealing, the sealing plate 52 can compress the first spring 56, the sealing plate 52 is tightly attached to the annular baffle plate 51 by utilizing the first spring 56, debugging can be simpler based on the structure, the sealing plate 52 does not need to be kept with higher lifting precision, and a rubber sealing ring is not adopted, so that the sealing failure of the lifting valve 5 in high temperature is not worry.
Specifically, the guide rod 55 is divided into a head, a guide column section and a thread section from bottom to top, the guide rod 55 passes through the sealing plate 52 from bottom to top, the thread section is fixedly connected with the flange 541, the guide column section is in sliding fit with the sealing plate 52, and the head is used for preventing the sealing plate 52 from being separated from the guide rod 55.
In this embodiment, the sealing plate 52 is provided with a through hole 521, the through hole 521 is in sliding fit with the push rod 54, the push rod 54 is provided with a second spring 57, and the second spring 57 is located between the flange 541 and the sealing plate 52;
the plurality of guide rods 55 and the first springs 56 are arranged to be balanced when the sealing plate 52 is pressed down, so that the sealing plate 52 is not inclined, the elastic force generated by the first springs 56 is smaller, the sealing plate 52 and the push rod 54 are also in sliding fit, and the second springs 57 are arranged, so that the sealing plate 52 can be abutted against the annular baffle plate 51 by the second springs 57, and the sealing plate 52 is more stable when moving.
In general, the guide rod 55 is smaller, and the guide rod 55 is in precise fit with the sealing plate 52, so that the gap is small, and the influence on the sealing effect of the valve is small; the gap between the push rod 54 and the through hole 521 is also very small, and an annular groove is arranged on the top surface of the sealing plate 52, the annular groove surrounds the through hole 521 and is communicated with the through hole 521, high-temperature-resistant grease is filled in the annular groove, the high-temperature-resistant grease can lubricate, the sliding of the sealing plate 52 is assisted, a certain sealing effect can be achieved, and the sealing effect of the lifting valve 5 can reach expectations.
In this embodiment, the pipe diameters of the branch pipe 61 and the return pipe 6 are smaller than those of the inlet pipe 2 and the outlet pipe 3, so that a common electric valve is adopted, and the electric valve is generally an electric butterfly valve.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. The heat accumulating type thermal oxidation furnace comprises a furnace body, an air inlet pipeline and an air outlet pipeline, wherein the furnace body comprises three heat accumulating chambers and combustion chambers, wherein the three heat accumulating chambers are arranged at intervals, the combustion chambers are communicated with the three heat accumulating chambers, air collecting cavities are arranged at the bottoms of the heat accumulating chambers, connecting pipe orifices communicated with the air collecting cavities are arranged on the air inlet pipeline and the air outlet pipeline, and lifting valves which are in one-to-one correspondence with the connecting pipe orifices are arranged on the air collecting cavities;
The output of drive arrangement is equipped with the push rod of vertical arrangement, be fixed with the ring flange on the push rod, the ring flange is located the top of closing plate, ring flange, push rod and closing plate coaxial arrangement, the circumference equipartition has a plurality of guide arms on the ring flange, the guide arm with closing plate sliding fit, the cover is equipped with first spring on the guide arm, first spring is located the ring flange with between the closing plate.
2. The regenerative thermal oxidizer of claim 1, wherein said guide bar is divided from bottom to top into a head portion, a guide post section and a threaded section, said threaded section is fixedly connected to said flange, said guide post section is slidably engaged with said sealing plate, and said head portion is adapted to prevent the sealing plate from being separated from said guide bar.
3. The regenerative thermal oxidizer of claim 1, wherein said sealing plate is provided with a through hole, said through hole being in sliding engagement with said push rod, said push rod being provided with a second spring, said second spring being located between said flange and said sealing plate.
4. A regenerative thermal oxidation furnace according to claim 3, wherein the top surface of said sealing plate is provided with an annular groove which is arranged around said through hole and communicates with said through hole, and said annular groove is filled with a high temperature resistant grease.
5. The regenerative thermal oxidizer of claim 1, further comprising a return pipe, wherein a branch pipe communicated with said converging chamber is provided on said return pipe, and an electric valve is provided on said branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322439131.7U CN220828860U (en) | 2023-09-07 | 2023-09-07 | Heat accumulating type thermal oxidation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322439131.7U CN220828860U (en) | 2023-09-07 | 2023-09-07 | Heat accumulating type thermal oxidation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220828860U true CN220828860U (en) | 2024-04-23 |
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ID=90727739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322439131.7U Active CN220828860U (en) | 2023-09-07 | 2023-09-07 | Heat accumulating type thermal oxidation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220828860U (en) |
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2023
- 2023-09-07 CN CN202322439131.7U patent/CN220828860U/en active Active
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