RTO waste gas treatment equipment

Abstract

The utility model discloses RTO waste gas treatment equipment which comprises an air inlet duct and an air outlet duct which are arranged in parallel, a plurality of transition cavities are arranged between the air inlet duct and the air outlet duct, air inlet valves are arranged between the air inlet duct and the transition cavities, air outlet valves are arranged between the air outlet duct and the transition cavities, heat accumulators are arranged on the upper sides of the transition cavities, and the heat accumulators are arranged on the lower sides of the transition cavities. Mutually communicated heating cavities are formed in the upper side of the heat accumulator, choke plates are arranged on the upper side and the lower side of the heat accumulator, and a plurality of through holes are formed in the choke plates. Due to the fact that the choke plates are arranged on the upper side and the lower side of the heat storage body, exhaust gas discharged out of the heat storage body can be slowed down after the exhaust gas enters the heat storage body, the time of the exhaust gas remaining in the heat storage body is prolonged, the heat exchange effect of the heat storage body and the exhaust gas is improved, and heating energy is further saved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an RTO waste gas treatment device. Background Art

[0002] The RTO waste gas treatment device is an organic waste gas treatment device, which heats the organic waste gas to above 760 °C, and an oxidation reaction occurs at high temperature, so that the hydrocarbons in the waste gas are oxidized into CO2 and H2O and directly discharged into the atmosphere. The regenerative RTO is provided with a regenerator before the heating chamber and is provided with multiple groups of valves. By combining different inlet and outlet valves, the flow direction of the waste gas entering the heating chamber is controlled, so that the regenerator can play the role of heat storage and preheating the waste gas, saving the heating energy required by the heating chamber. However, the time for the waste gas to pass through the regenerator is short, and the preheating time of the low-temperature waste gas passing through the regenerator is insufficient, resulting in the temperature of the low-temperature waste gas still being relatively low after entering the heating chamber, and not saving much heating energy; when the heated waste gas is discharged downward, the time for passing through the regenerator is insufficient, and the regenerator cannot be effectively heated, so the heat exchange effect of the regenerator is poor and there is room for improvement. Content of the Utility Model

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide an RTO waste gas treatment device, thereby effectively solving the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an RTO waste gas treatment device, including an air inlet duct and an air outlet duct arranged in parallel, several transition chambers are arranged between the air inlet duct and the air outlet duct, an intake valve is arranged between the air inlet duct and the transition chamber, an exhaust valve is arranged between the air outlet duct and the transition chamber, a regenerator is arranged on the upper side of the transition chamber, a heating chamber communicated with each other is arranged on the upper side of the regenerator, wind blocking plates are arranged on both the upper and lower sides of the regenerator, and several through holes are opened on the wind blocking plates.

[0005] Further, a wind deflector is arranged among several through holes on the wind blocking plate, the wind deflector is hinged on the inner wall of the through hole, and an elastic member tending to force the wind deflector to rotate away from the regenerator and rest on the inner wall of the through hole is arranged at the hinge of the wind deflector.

[0006] Further, the elastic member is a torsion spring.

[0007] Further, the length of the wind deflector is longer than the diameter of the through hole.

[0008] Further, a support plate is arranged on the upper side of the transition chamber at the outer edge of the wind blocking plate.

[0009] The above technical solution of the present utility model has the following beneficial effects: The present utility model is provided with wind blocking plates on the upper and lower sides of the heat storage body, which can slow down the exhaust of waste gas from the heat storage body after the waste gas enters the heat storage body, thereby increasing the residence time of the waste gas in the heat storage body, improving the heat exchange effect between the heat storage body and the waste gas, and further saving heating energy. Description of the Drawings

[0010] Figure 1 It is a schematic cross-sectional view of the embodiment of the present utility model from a top-down perspective;

[0011] Figure 2 It is a schematic cross-sectional view of the embodiment of the present utility model from a side perspective;

[0012] Figure 3 is Figure 2 an enlarged view of part A in Detailed Description of the Embodiment

[0013] The following is a preferred detailed description of the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0014] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0015] As Figures 1-3 shown, a kind of RTO waste gas treatment device in this embodiment includes an air inlet duct 1 and an air outlet duct 2 arranged in parallel. A plurality of transition chambers 3 are arranged between the air inlet duct 1 and the air outlet duct 2. An intake valve 4 is arranged between the air inlet duct 1 and the transition chamber 3. An exhaust valve 5 is arranged between the air outlet duct 2 and the transition chamber 3. A heat storage body 6 is arranged on the upper side of the transition chamber 3. A heating chamber 7 that communicates with each other is arranged on the upper side of the heat storage body 6. Wind blocking plates 8 are arranged on both the upper and lower sides of the heat storage body 6. A plurality of through holes 81 are opened on the wind blocking plates 8;

[0016] Low-temperature waste gas enters from the air inlet duct 1, passes through the intake valve 4 and enters the transition chamber 3. Then it flows upward in the transition chamber 3 through the regenerator 6, and then enters the heating chamber 7 for heating (the heating chamber 7 can be heated by ignition heating, electric heating, etc.). After heating, the high-temperature waste gas flows into another regenerator 6 and flows downward. When passing through the regenerator 6, the regenerator 6 can absorb the heat of the high-temperature waste gas to avoid excessive heat waste. After continuously discharging for a period of time, the original intake valve 4 and the original outlet valve 5 are closed, the intake valve 4 on the corresponding side of the original outlet valve 5 is opened, and another outlet valve 5 is opened. After the low-temperature waste gas enters, it will pass through the heat-absorbed regenerator 6 and then enter the heating chamber 7 for heating. The low-temperature waste gas can be preheated by the regenerator 6, and then entering the heating chamber 7 for heating can reduce the energy required for heating, thus saving energy. When the high-temperature waste gas is discharged, it heats the regenerator 6 on the corresponding side of the outlet valve 5, and circulates in turn to store heat and discharge waste gas;

[0017] After the waste gas enters the regenerator 6, it will pass through the group sealing plate to slow down the discharge of the waste gas from the regenerator 6, thereby increasing the residence time of the waste gas in the regenerator 6, improving the heat exchange effect between the regenerator 6 and the waste gas, and further saving heating energy;

[0018] Preferably, windshields 9 are arranged in a number of through holes 81 on the wind blocking plate 8 (that is, windshields 9 are arranged in a part of the through holes 81 on the wind blocking plate 8). The windshields 9 are hingedly arranged on the inner wall of the through holes 81, and an elastic member 10 tending to force the windshields 9 to rotate away from the regenerator 6 and rest on the inner wall of the through holes 81 is arranged at the hinge of the windshields 9. Preferably, the elastic member 10 is a torsion spring. When the waste gas enters the regenerator 6 through the through holes 81, the through holes 81 without windshields 9 can directly pass the waste gas. In the through holes 81 with windshields 9, the windshields 9 can swing towards the regenerator 6, and the waste gas can push open the windshields 9. The windshields 9 compress the torsion spring and open (the elastic force of the torsion spring is small, and the wind pressure of the waste gas can push open the windshields 9). The through holes 81 with windshields 9 can also pass the waste gas into the regenerator 6. When the waste gas discharges from the regenerator 6, the through holes 81 without windshields 9 can directly discharge. At the through holes 81 with windshields 9, the waste gas will press the windshields 9 against the side wall of the through holes 81, and the windshields 9 block the waste gas, so that the waste gas can gather at the regenerator 6, slow down the discharge of the waste gas from the regenerator 6, and further save heating energy;

[0019] Preferably, the length of the windshields 9 is longer than the diameter of the through holes 81 to ensure that the windshields 9 can rest on the side wall of the through holes 81;

[0020] Preferably, a support plate 11 is arranged on the upper side of the transition chamber 3 at the outer edge of the wind blocking plate 8, and the wind blocking plate 8 is placed on the upper side of the transition chamber 3 through the support plate 11.

[0021] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An RTO waste gas treatment device, comprising an air inlet duct and an air outlet duct arranged in parallel, a plurality of transition chambers arranged between the air inlet duct and the air outlet duct, an air inlet valve arranged between the air inlet duct and the transition chamber, an air outlet valve arranged between the air outlet duct and the transition chamber, a heat storage body arranged on the upper side of the transition chamber, and mutually connected heating chambers arranged on the upper side of the heat storage body, characterized in that: Wind blocking plates are arranged on both the upper and lower sides of the heat storage body, and a plurality of through holes are opened on the wind blocking plates.

2. The RTO waste gas treatment equipment according to claim 1, characterized in that: Wind shields are arranged in several through holes on the wind blocking plate, and the wind shields are hinged on the inner wall of the through hole. The hinge of the wind shield is provided with an elastic member tending to force the wind shield to rotate to the side away from the heat storage body and rest on the inner wall of the through hole.

3. The RTO waste gas treatment equipment according to claim 2, characterized in that: The elastic member is a torsion spring.

4. The RTO waste gas treatment equipment according to claim 2, characterized in that: The length of the wind shield is longer than the diameter of the through hole.

5. The RTO waste gas treatment equipment according to claim 1, characterized in that: A support plate is arranged on the upper side of the transition cavity at the outer edge of the wind blocking plate.

Images