Air door, purification device and waste gas treatment system

Abstract

The utility model discloses an air door, a purification device and a waste gas treatment system, and relates to the technical field of waste gas treatment.The air door comprises a shell, a door shaft and a baffle, the shell is arranged in the middle of the waste gas transmission pipeline; the door shaft is supported on the shell along the length direction of the shell; the baffle is rotationally mounted on the door shaft; wherein the baffle rotates along with the door shaft and has a closed state for isolating the waste gas transmission pipeline and an open state for communicating the waste gas transmission pipeline. According to the technical scheme, the shell is arranged in the middle of the waste gas conveying pipeline, the door shaft is supported on the shell, and the baffle is rotationally mounted on the door shaft, so that the baffle rotates along with the door shaft, and the waste gas conveying pipeline can rotate along with the door shaft. The air door has a closed state for isolating the waste gas conveying pipeline and an open state for communicating the waste gas conveying pipeline, so that the waste gas conveying pipeline is closed when the purification device needs to be maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust treatment technical field, especially a damper, purification device and exhaust treatment system. BACKGROUND

[0002] Power plant, steel plant in the operation process will produce exhaust gas, these exhaust gas through exhaust transmission pipeline enters the purification device and handles, when the purification device needs maintenance must close exhaust transmission pipeline and do not allow exhaust gas from exhaust transmission pipeline leakage, for this how to close and seal exhaust transmission pipeline is the technical problem to be solved urgently. UTILITY MODEL CONTENTS

[0003] The utility model discloses a damper, purification device and exhaust treatment system, which has the function of closing exhaust transmission pipeline.

[0004] To achieve the above object, the utility model provides a damper, which comprises:

[0005] The shell is arranged in the middle of the exhaust transmission pipeline.

[0006] The door shaft is supported on the shell along the length direction of the shell.

[0007] The baffle is rotatably installed on the door shaft.

[0008] The baffle rotates with the door shaft, and has a closed state of isolating the exhaust transmission pipeline and an open state of connecting the exhaust transmission pipeline.

[0009] In an embodiment, the damper further comprises a sealing member arranged on the side end surface of the baffle in contact with the shell.

[0010] In an embodiment, the sealing member comprises a high-pressure airflow pipeline.

[0011] The baffle is concave with a containing groove relative to the end surface of the shell, and the containing groove is used to contain the high-pressure airflow pipeline.

[0012] In an embodiment, the material of the high-pressure airflow pipeline comprises rubber material.

[0013] In an embodiment, the high-pressure airflow pipeline is provided with air holes, and the air holes are arranged in multiple and uniformly distributed on the high-pressure airflow pipeline.

[0014] In an embodiment, the high-pressure airflow pipeline and the containing groove are arranged as a sealing group, and the sealing group is arranged in two and arranged relative to the exhaust flow direction in the exhaust transmission pipeline.

[0015] In an embodiment, the baffle is provided with reinforcing ribs opposite the end face of the waste gas transmission pipeline, and the reinforcing ribs are arranged on the baffle in a uniform interval.

[0016] In an embodiment, the material of the door shaft comprises a hard alloy material.

[0017] The utility model discloses still propose a kind of purification device, and the purification device includes the air door as any one of the preceding.

[0018] Wherein, the air door includes:

[0019] Shell, be arranged in the middle of waste gas transmission pipeline;

[0020] Door shaft, is supported on the shell along the length direction of the shell;And,

[0021] Baffle, is rotatably installed on the door shaft;

[0022] Wherein, the baffle rotates with the door shaft, with the closed state of isolating the waste gas transmission pipeline and the open state of connecting the waste gas transmission pipeline.

[0023] The utility model discloses still propose a kind of waste gas treatment system, and the waste treatment device includes the purification device as described above, and the purification device includes the air door as any one of the preceding.

[0024] Wherein, the air door includes:

[0025] Shell, be arranged in the middle of waste gas transmission pipeline;

[0026] Door shaft, is supported on the shell along the length direction of the shell;And,

[0027] Baffle, is rotatably installed on the door shaft;

[0028] Wherein, the baffle rotates with the door shaft, with the closed state of isolating the waste gas transmission pipeline and the open state of connecting the waste gas transmission pipeline.

[0029] The technical scheme of the utility model is arranged in the middle of the waste gas transmission pipeline by shell, and the door shaft is supported on the shell, and the baffle is rotatably installed on the door shaft, so that the baffle rotates with the door shaft, the air door has the closed state of isolating the waste gas transmission pipeline and the open state of connecting the waste gas transmission pipeline, to close the waste gas transmission pipeline when the purification device needs to be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0031] Figure 1 The structure diagram of an embodiment of the air door provided by the present application is shown in the figure.

[0032] Figure 2 The relative waste gas transmission pipeline is shown in the figure. Figure 1 The relative waste gas transmission pipeline is shown in the figure.

[0033] Explanation of the reference signs:

[0034] 100, air door; 1, shell; 2, door shaft; 3, baffle; 4, sealing element; 41, high-pressure airflow pipeline.

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0037] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0038] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0039] The power plant, steel plant will produce waste gas in the operation process, these waste gas through the waste gas transmission pipeline into the purification device for treatment, when the purification device needs to be maintained, the waste gas transmission pipeline must be closed and the waste gas is not allowed to leak from the waste gas transmission pipeline, for this, the air door of the closed waste gas transmission pipeline must be highly sealed, how to seal is a technical problem to be solved.

[0040] In order to solve the above problems, the utility model provides a kind of air door, purification device and waste gas treatment system, to provide a kind of air door with the function of closing waste gas transmission pipeline, purification device and waste gas treatment system, Figures 1 to 2 The structure diagram of an embodiment provided by the air door of the utility model.

[0041] Please refer to Figures 1 to 2 In an embodiment of the present application, the air door 100 includes a housing 1, a door shaft 2 and a baffle 3;The housing 1 is arranged in the middle of the waste gas transmission pipeline;The door shaft 2 is supported on the housing 1 along the length direction of the housing 1;The baffle 3 is rotatably installed on the door shaft 2;Wherein, the baffle 3 rotates with the door shaft 2, has the closed state of isolating the waste gas transmission pipeline and the open state of connecting the waste gas transmission pipeline.

[0042] The technical scheme of the utility model adopts the housing 1 arranged in the middle of the waste gas transmission pipeline, and the door shaft 2 is supported on the housing 1, and the baffle 3 is rotatably installed on the door shaft 2, so the baffle 3 rotates with the door shaft 2, the air door 100 has the closed state of isolating the waste gas transmission pipeline and the open state of connecting the waste gas transmission pipeline, and then the waste gas transmission pipeline is closed when the purification device needs to be maintained.

[0043] Further, please refer to Figures 1 to 2The damper 100 further comprises a sealing member 4 arranged on the side end surface of the baffle 3 in contact with the shell 1. It can be understood that since the shell 1 and the baffle 3 are both rigid bodies, and the side end surface of the baffle 3 has a relative displacement stroke with respect to the inner side wall of the shell 1, thus there is always a gap between the side end surface of the baffle 3 and the inner side wall of the shell 1 for the exhaust gas to pass through, thus in order to avoid the exhaust gas from leaking from the gap between the shell 1 and the baffle 3 in contact, thus the damper 100 further comprises the sealing member 4 arranged on the side end surface of the baffle 3 in contact with the shell 1, and further through the arrangement of the sealing member 4, the gap that may exist when the shell 1 and the baffle 3 are in contact is closed, and thus the sealing effect of the baffle 3 on the exhaust gas is further ensured.

[0044] Further, referring to Figures 1 to 2 The sealing member 4 comprises a high-pressure gas flow pipe 41; the end surface of the baffle 3 is recessed with a receiving groove for accommodating the high-pressure gas flow pipe 41. It can be understood that in order to achieve the sealing effect between the side end surface of the baffle 3 and the inner side wall of the shell 1, thus in some embodiments, a groove is recessed between the side end surface of the baffle 3 and the inner side wall of the shell 1, and the sealing member 4 comprises a rubber sealing ring arranged in the groove between the side end surface of the baffle 3 and the inner side wall of the shell 1, thus achieving the function of having a sealing effect between the side end surface of the baffle 3 and the inner side wall of the shell 1, but since the rubber sealing ring has poor wear resistance, after the baffle 3 is replaced between the closed state and the open state for many times, the rubber sealing ring is easy to wear, thus the sealing effect between the side end surface of the baffle 3 and the inner side wall of the shell 1 is deteriorated, resulting in the exhaust gas leaking from the exhaust gas transmission pipe.

[0045] In summary, specifically, in another embodiment, in order to avoid the abrasion of the sealing member 4 caused by the reciprocating replacement of the closed state and the open state of the baffle 3 relative to the exhaust gas conveying pipeline, which causes the sealing member 4 to fail between the side end face of the baffle 3 and the inner side wall of the shell 1, causing the exhaust gas to leak from the exhaust gas conveying pipeline, therefore, the sealing member 4 includes the high-pressure airflow pipeline 41, the end face of the baffle 3 relative to the shell 1 is recessed with the accommodating groove for accommodating the high-pressure airflow pipeline 41, when the baffle 3 is in the closed state, the high-pressure airflow pipeline 41 is inflated to have high-pressure gas to expand the high-pressure airflow pipeline 41, thereby filling the gap between the side end face of the baffle 3 and the inner side wall of the shell 1, playing a role in sealing the exhaust gas conveying pipeline; when the baffle 3 is in the open state, the high-pressure airflow pipeline 41 starts to deflate, reducing the pressure between the side end face of the baffle 3 and the inner side wall of the shell 1, thereby equivalent to reducing the friction, thereby reducing the abrasion of the sealing member 4 when the baffle 3 state is replaced, thereby prolonging the service life of the sealing member 4, and not needing to be replaced frequently.

[0046] Further, the material of the high-pressure airflow pipeline 41 includes rubber material. It can be understood that after the high-pressure airflow pipeline 41 is inflated and deflated for many times, due to the problem of insufficient toughness, it is easy to crack, thereby causing the sealing member 4 to fail between the side end face of the baffle 3 and the inner side wall of the shell 1, therefore, in another embodiment, the material of the high-pressure airflow pipeline 41 includes rubber material, on the one hand, due to the toughness of the rubber material is very good, even after many times of inflation and deflation, it will not crack due to the problem of toughness, thereby causing the sealing failure between the side end face of the baffle 3 and the inner side wall of the shell 1, on the other hand, due to the rubber material is soft enough, thereby when the high-pressure airflow pipeline 41 is inflated and expanded, it can fully fill the gap between the side end face of the baffle 3 and the inner side wall of the shell 1, further strengthening the sealing effect between the side end face of the baffle 3 and the inner side wall of the shell 1.

[0047] Further, the high-pressure airflow pipe 41 is provided with air holes, and the air holes are arranged in multiple and uniformly arranged on the high-pressure airflow pipe 41. It can be understood that, in order to further strengthen the sealing effect between the side end surface of the baffle 3 and the inner side wall of the shell 1, the high-pressure airflow pipe 41 is provided with the air holes, and the air holes are arranged in multiple and uniformly arranged on the high-pressure airflow pipe 41. In this way, by consuming the air source, the high-pressure gas is sprayed from the air holes of the high-pressure airflow pipe 41, and a high-pressure air curtain is formed between the side end surface of the baffle 3 and the inner side wall of the shell 1. Since the pressure of the high-pressure air curtain is greater than the pressure of the two sides of the damper 100, it will prevent the exhaust gas from leaking from the high-pressure side to the low-pressure side of the high-pressure transmission pipe, thereby effectively blocking the through of the two sides of the damper 100.

[0048] Further, the high-pressure airflow pipe 41 and the accommodating groove are arranged as a sealing group, and the sealing group is arranged in two and arranged respectively with respect to the exhaust gas flow direction in the exhaust gas transmission pipe. It can be understood that, in order to ensure the sealing effect of the sealing member 4 between the side end surface of the baffle 3 and the inner side wall of the shell 1, and to ensure the reliability of the sealing performance of the damper 100, the high-pressure airflow pipe 41 and the accommodating groove are arranged as a sealing group, and the sealing group is arranged in two and arranged respectively with respect to the exhaust gas flow direction in the exhaust gas transmission pipe. Thus, the reliability and stability of the sealing of the damper 100 are further ensured.

[0049] In addition, the baffle 3 is provided with reinforcing ribs on the end surface of the exhaust transmission pipe, and the reinforcing ribs are arranged in multiple and uniformly arranged on the baffle 3. It can be understood that the air pressure of the exhaust gas transmission pipe is very high. In order to avoid the deformation of the baffle 3 under the action of high air pressure, which causes the deformation of the side end surface of the baffle 3 and leads to the poor sealing between the side end surface of the baffle 3 and the inner wall of the shell 1, the baffle 3 is provided with the reinforcing ribs on the end surface of the exhaust transmission pipe, and the reinforcing ribs are arranged in multiple and uniformly arranged on the baffle 3. Thus, the baffle 3 is further strengthened against the high air pressure of the exhaust gas, thereby avoiding deformation and protecting the sealing between the side end surface of the baffle 3 and the inner wall of the shell 1.

[0050] In addition, the material of the door shaft 2 includes hard alloy material. It can be understood that the air pressure of the exhaust gas transmission pipe is very high. While the baffle 3 resists high air pressure, the door shaft 2 serves as a supporting member of the baffle 3. In order to ensure the reliability of the door shaft 2, the material of the door shaft 2 includes hard alloy material, thereby further ensuring the supporting effect of the door shaft 2 on the baffle 3, and ensuring the reliability and stability of the damper 100.

[0051] The utility model discloses still purifier, purifier includes the air door 100, the specific structure of air door 100 refers to above-mentioned embodiment, because purifier has adopted all technical schemes of above-mentioned all embodiments, therefore at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaborates.

[0052] The utility model discloses still waste gas treatment system, waste gas treatment system includes purifier, purifier includes air door 100, the specific structure of air door 100 refers to above-mentioned embodiment, because waste gas treatment system has adopted all technical schemes of above-mentioned all embodiments, therefore at least has all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaborates.

[0053] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and all equivalent structural transformations made by the utility model specification and the contents of the drawings, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A damper for use in the field of exhaust gas treatment, characterized in that, The air door comprises: a housing arranged in the exhaust gas conveying pipeline; a door shaft supported on the housing along the length direction of the housing; and a baffle plate rotatably arranged on the door shaft; wherein the baffle plate rotates with the door shaft to have a closed state for isolating the exhaust gas conveying pipeline and an open state for connecting the exhaust gas conveying pipeline. The air door further comprises a sealing member arranged on the side end surface of the baffle plate in contact with the housing.

2. The damper of claim 1, wherein The sealing member comprises a high-pressure gas flow pipeline.

3. The damper of claim 2, wherein: The baffle plate is concavely provided with a receiving groove on the end surface of the housing, and the receiving groove is used to accommodate the high-pressure gas flow pipeline. The material of the high-pressure gas flow pipeline comprises rubber material.

4. The damper of claim 3, wherein: The high-pressure gas flow pipeline is provided with gas holes, and the gas holes are arranged in a plurality of uniform intervals on the high-pressure gas flow pipeline.

5. The damper of claim 3, wherein: The high-pressure gas flow pipeline and the receiving groove are arranged as a sealing group, and the sealing group is arranged in two, respectively arranged in the exhaust gas flowing direction of the exhaust gas conveying pipeline.

6. The damper of claim 3, wherein: The baffle plate is convexly provided with reinforcing ribs on the end surface of the exhaust gas conveying pipeline, and the reinforcing ribs are arranged in a plurality of uniform intervals on the baffle plate.

7. The damper of claim 1, wherein: The material of the door shaft comprises hard alloy material.

8. The damper of claim 1, wherein: The purification device comprises the air door according to any one of claims 1-8.

9. A purification device, characterized in that The waste treatment device comprises the purification device according to claim 9.

10. An exhaust gas treatment system characterized by, ​

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