CN214332746U

CN214332746U - RTO heat accumulation burns burning furnace

Info

Publication number: CN214332746U
Application number: CN202023328495.0U
Authority: CN
Inventors: 陈顺强; 谭兴刚; 任开文
Original assignee: Xiamen Yuchun Environmental Protection Technology Co ltd
Current assignee: Xiamen Yuchun Environmental Protection Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-01
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a RTO regenerative incinerator, including the furnace body, the furnace body comprises combustion chamber and two communicating at least heat accumulation chambeies bottom the combustion chamber. Be equipped with the heat accumulator in the regenerator, every regenerator bottom is connected with intake pipe, blast pipe and sweeps the pipe respectively, installs the diverter valve respectively on intake pipe, blast pipe and the pipe that sweeps. The switching valve comprises a valve body, a through vent hole is formed in the valve body, a rotating shaft is arranged in the vent hole, two ends of the rotating shaft respectively penetrate out of the valve body, and a valve plate which is used for achieving switching of the switching valve and matched with the shape of the vent hole is fixedly arranged on the position of the rotating shaft at the vent hole. An air cooling channel is arranged in the rotating shaft along the axis, and an air inlet and an air outlet which are communicated with the air cooling channel are respectively arranged at the positions of the rotating shaft close to the two ends. The utility model discloses a set up the air-cooled passageway in the rotation axis of diverter valve to reach the difficult purpose that produces the high temperature of valve body, prevent that the overheated card of diverter valve from dying, improved the reliability of equipment.

Description

RTO heat accumulation burns burning furnace

Technical Field

The utility model relates to an energy-concerving and environment-protective device technical field, in particular to RTO regenerative thermal oxidizer.

Background

A heat accumulating type thermal oxidizer (RTO for short) is an energy-saving environment-friendly device for treating volatile organic waste gas with medium and low concentration. The heat accumulating type thermal oxidizer treats the organic waste gas with medium and low concentration by a thermal oxidation method and recovers heat by a heat accumulating bed. The main characteristics are as follows: the automatic control valves at the bottom of the heat storage bed are respectively connected with the air inlet main pipe and the air outlet main pipe, the heat storage bed is alternately reversed through the reversing valves, high-temperature gas heat coming out from the combustion chamber is stored, organic waste gas entering the heat storage bed is preheated, the heat storage bed is adopted to absorb and release heat, the organic waste gas preheated to a certain temperature (greater than or equal to 780 ℃) is subjected to oxidation reaction in the combustion chamber, carbon dioxide and water are generated, and standard emission is realized. Since the gas temperatures in and out of the RTO are high, the automatic control valves installed on the inlet/exhaust/purge lines must have sufficient high temperature capability. The existing method generally adopts expensive high-temperature-resistant steel materials to manufacture the internal structure of the high-temperature valve, but the method still can easily cause the abnormalities of deformation of a valve body in the high-temperature valve, clamping and the like due to thermal expansion at two ends of a rotating shaft and the like, so that the switching valve fails to open, and accidents can be caused in serious cases.

Disclosure of Invention

To the technical problem who proposes in the background art, the utility model aims to provide an RTO thermal storage burns burning furnace through set up the air-cooled pipeline in the rotation axis of diverter valve, can reach the difficult purpose that produces the high temperature of valve body, prevents that the overheated card of diverter valve from dying, has improved the reliability of equipment.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

an RTO heat accumulation incinerator comprises a furnace body, wherein the furnace body consists of a combustion chamber and at least two heat accumulation chambers communicated with the bottom of the combustion chamber. The heat storage chambers are internally provided with heat storage bodies, the bottom of each heat storage chamber is respectively connected with an air inlet pipe, an exhaust pipe and a purging pipe, and the air inlet pipe, the exhaust pipe and the purging pipe are respectively provided with a switching valve. The switching valve comprises a valve body, a through vent hole is formed in the valve body, a rotating shaft is arranged in the vent hole, two ends of the rotating shaft respectively penetrate out of the valve body, and a valve plate which is used for achieving switching of the switching valve and matched with the shape of the vent hole is fixedly arranged at the position of the vent hole. An air cooling channel is arranged in the rotating shaft along the axis, and an air inlet and an air outlet which are communicated with the air cooling channel are respectively arranged at the positions of the rotating shaft close to the two ends. The air inlet and the air outlet are respectively connected with the air inlet pipeline and the air exhaust pipeline.

Furthermore, both ends of rotation axis respectively through shaft coupling fixedly connected with connecting axle and back shaft, the end of connecting axle is equipped with the connecting portion that are used for being connected with driving motor, the end of back shaft is equipped with the supporting part that is used for being connected with the bearing.

Preferably, in order to prevent the heat of the rotating shaft from being transferred to the connecting shaft or the supporting shaft, which may cause the bearing end to be stuck, heat insulation sheets for preventing heat transfer are fixedly disposed at the connection position of the rotating shaft and the connecting shaft and the connection position of the rotating shaft and the supporting shaft, respectively.

Preferably, the heat insulation sheet is made of fluororubber.

Furthermore, two sides of the valve body are respectively and fixedly provided with a supporting frame for supporting the connecting shaft and the supporting shaft.

Furthermore, the side of combustion chamber set firmly with the emergent discharge line that the combustion chamber is linked together, emergent discharge line on be equipped with emergent blow-off valve.

Preferably, the inner wall surfaces of the combustion chamber and the regenerator are respectively attached with a heat-insulating furnace lining.

Preferably, a filter layer for adsorbing oil in the adsorption exhaust gas is fixedly arranged at the bottom of the heat storage chamber.

Preferably, the heat accumulator is a ceramic heat accumulator.

The utility model discloses following beneficial effect has:

1. the air cooling channel is arranged in the rotating shaft, so that air cooling is introduced, the purpose that the valve body is not easy to generate high temperature is achieved, the switching valve is prevented from being overheated and stuck, and the safety and the reliability of equipment are improved;

2. the shaft couplers are arranged at the two ends of the rotating shaft, and the heat insulation sheets are arranged at the joints, so that the heat of the rotating shaft cannot be transmitted to the connecting shaft or the supporting shaft, and the phenomenon that the bearing end is clamped can not occur;

3. after air cooling is introduced, even if the switching valve is manufactured without expensive high-temperature resistant materials, the high-temperature resistant effect can be achieved, and the manufacturing cost of the switching valve can be greatly reduced;

4. by attaching the heat-insulating furnace lining on the inner wall surfaces of the combustion chamber and the regenerative chamber, the heat-insulating effect can be better realized, and the energy conservation can be better realized.

Drawings

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

Fig. 2 is a schematic structural diagram of the switching valve.

Fig. 3 is a schematic view showing the connection of the rotating shafts.

Description of the main component symbols: 1. a furnace body; 10. a switching valve; 100. a filter layer; 101. a valve body; 102. a vent hole; 103. a rotating shaft; 104. a valve plate; 105. an air cooling passage; 106. an air inlet; 107. an exhaust port; 108. a coupling; 109. a connecting shaft; 110. a support shaft; 111. a connecting portion; 112. a support portion; 113. a heat insulating sheet; 114. a support frame; 115. an emergency discharge pipeline; 116. an emergency drain valve; 11. a combustion chamber; 12. a regenerator; 120. a heat accumulator; 121. an air inlet pipe; 122. an exhaust pipe; 123. and (4) purging the tube.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-3, the RTO regenerative thermal oxidizer includes a furnace body 1, the furnace body 1 is composed of a combustion chamber 11 and at least two regenerative chambers 12 communicated with the bottom of the combustion chamber 11, and an igniter and the like are arranged in the combustion chamber 11. Preferably, the inner wall surfaces of the combustion chamber 11 and the regenerator 12 are respectively attached with thermal insulation lining. The heat storage body 120 is arranged in the heat storage chamber 12, and preferably, the heat storage body 120 is a ceramic heat storage body. Preferably, the bottom of the regenerator 12 is fixedly provided with a filter layer 100 for adsorbing oil in the adsorption exhaust gas. The bottom of each regenerator 12 is connected with an inlet pipe 121, an outlet pipe 122 and a purge pipe 123, and the inlet pipe 121, the outlet pipe 122 and the purge pipe 123 are respectively provided with a switching valve 10. An emergency discharge pipeline 115 communicated with the combustion chamber 11 is fixedly arranged on the side edge of the combustion chamber 11, and an emergency discharge valve 116 is arranged on the emergency discharge pipeline 115.

The switching valve 10 includes a valve body 101, a through vent hole 102 is disposed on the valve body 101, a rotating shaft 103 is disposed in the vent hole 102, two ends of the rotating shaft 103 respectively penetrate through the valve body 101, and a valve plate 104 adapted to the shape of the vent hole 102 is fixedly disposed at the position of the vent hole 102 on the rotating shaft 103 for realizing the opening and closing of the switching valve 10. An air cooling passage 105 is provided along the axis inside the rotary shaft 103, and an air inlet 106 and an air outlet 107 communicating with the air cooling passage 105 are provided at positions near both ends of the rotary shaft 103, respectively. The air inlet 106 and the air outlet 107 are connected to an external air inlet pipe and an external air outlet pipe (not shown).

A connecting shaft 109 and a supporting shaft 110 are fixedly connected to both ends of the rotating shaft 103 through a coupling 108, respectively, a connecting portion 111 for connecting with a driving motor is provided at the end of the connecting shaft 109, and a supporting portion 112 for connecting with a bearing is provided at the end of the supporting shaft 110. Preferably, heat insulation sheets 113 for preventing heat transfer are fixedly provided at the junction of the rotation shaft 103 and the connection shaft 109 and at the junction of the rotation shaft 103 and the support shaft 110, respectively. Preferably, the heat insulating sheet 113 is made of fluororubber. And support frames 114 for supporting the connecting shaft 109 and the support shaft 110 are respectively and fixedly arranged on two sides of the valve body 101.

The utility model discloses an at inside air cooling passageway 105 that sets up of rotation axis 103, the cooling of introduction air cooling to reach the difficult purpose that produces the high temperature of valve body, prevent that the overheated card of diverter valve 10 from dying, improved the security and the reliability of equipment. The shaft couplings 108 are arranged at two ends of the rotating shaft 103, and the heat insulation 113 is arranged at the joint, so that the heat of the rotating shaft 103 is not transferred to the connecting shaft 109 or the supporting shaft 110, and the phenomenon of dead bearing end clamping is avoided. The utility model discloses a RTO regenerative thermal oxidizer has energy-concerving and environment-protective advantage, is suitable for and uses widely in the environmental protection field.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a RTO incinerator that accumulates heat, includes the furnace body, the furnace body by the combustion chamber and with the communicating two at least regenerator in combustion chamber bottom constitute, the regenerator in be equipped with the heat accumulator, the bottom of every regenerator is connected with intake pipe, blast pipe respectively and sweeps the pipe, intake pipe, blast pipe and sweep and manage and on install the diverter valve, its characterized in that respectively: the switching valve comprises a valve body, a through vent hole is formed in the valve body, a rotating shaft is arranged in the vent hole, two ends of the rotating shaft respectively penetrate out of the valve body, a valve plate which is used for realizing switching of the switching valve and is matched with the vent hole in shape is fixedly arranged at the position of the vent hole of the rotating shaft, an air cooling channel is arranged inside the rotating shaft along the axis, an air inlet and an air outlet which are communicated with the air cooling channel are respectively arranged at the positions, close to the two ends, of the rotating shaft, and the air inlet and the air outlet are respectively connected with an air inlet pipeline and an air outlet pipeline.

2. An RTO regenerative thermal oxidizer as defined in claim 1, wherein: the two ends of the rotating shaft are respectively fixedly connected with a connecting shaft and a supporting shaft through a coupler, the tail end of the connecting shaft is provided with a connecting portion used for being connected with a driving motor, and the tail end of the supporting shaft is provided with a supporting portion used for being connected with a bearing.

3. An RTO regenerative thermal oxidizer as defined in claim 2, wherein: and heat insulation sheets for preventing heat transfer are fixedly arranged at the joint of the rotating shaft and the connecting shaft and the joint of the rotating shaft and the supporting shaft respectively.

4. An RTO regenerative thermal oxidizer as defined in claim 3, wherein: the heat insulation sheet is made of fluororubber.

5. An RTO regenerative thermal oxidizer as defined in claim 2, wherein: and the two sides of the valve body are respectively and fixedly provided with a supporting frame for supporting the connecting shaft and the supporting shaft.

6. An RTO regenerative thermal oxidizer as defined in claim 1, wherein: the side of combustion chamber set firmly with the emergent discharge line that the combustion chamber is linked together, emergent discharge line on be equipped with emergent blow-off valve.

7. An RTO regenerative incinerator according to any one of claims 1 to 6 wherein: and heat-insulating furnace linings are respectively attached to the inner wall surfaces of the combustion chamber and the regenerator.

8. An RTO regenerative incinerator according to any one of claims 1 to 6 wherein: and a filter layer for adsorbing oil in the adsorption waste gas is fixedly arranged at the bottom of the heat storage chamber.

9. An RTO regenerative incinerator according to any one of claims 1 to 6 wherein: the heat accumulator is a ceramic heat accumulator.