Waste gas tower capable of preventing gas from flowing reversely

Abstract

The utility model discloses a waste gas tower capable of preventing gas backflow, relates to the field of waste gas towers, and aims to solve the problems that in the prior art, a sealing circular plate is separated from an annular sealing plate, so that waste gas enters the waste gas tower through a gap formed by separating the sealing circular plate from the annular sealing plate; and the gas inlet efficiency of the waste gas is hindered due to the limited size of a separated gap. The lower end of one side of the waste gas tower is fixedly connected with a Z-shaped gas inlet pipe, the Z-shaped gas inlet pipe is fixedly connected with a circular tubular anti-reflux device, and the upper end and the lower end of one side in the circular tubular anti-reflux device are rotationally connected with semicircular sealing plates; the space between one side of the circular tubular anti-backflow device and the Z-shaped air inlet pipe is sealed by combining the two semicircular sealing plates into a circular surface, the worm is driven by the driving motor to rotate, and the worm synchronously drives the two rotating shafts to rotate through the two worm teeth arranged in a mirror image mode, so that the two semicircular sealing plates are closed, and the anti-backflow device is formed. And opening between one side of the circular tubular anti-reflux device and the Z-shaped air inlet pipe is realized.

Description

Technical Field

[0001] The utility model relates to the field of waste gas towers, in particular to a waste gas tower for preventing gas backflow. Background Art

[0002] The waste gas tower is a kind of purification equipment, which is divided into three categories according to the contact form of gas and liquid. The first category is the plate tower, bubbling absorption tower, and stirred bubbling absorption tower in which the gas is dispersed in the liquid phase in the form of bubbles; the second category is the ejector, venturi, and spray tower in which the liquid is dispersed in the gas phase in the form of droplets; the third category is the packed absorption tower and falling film absorption tower in which the liquid contacts the gas phase in the form of a film.

[0003] For example, the authorization announcement number CN 219376660 U discloses an electroplating waste gas tower, comprising: an electroplating waste gas treatment tower body, an air inlet pipe installed at the bottom of one side of the electroplating waste gas treatment tower body, and an air outlet pipe installed at the top of the other side of the electroplating waste gas treatment tower body; a spray assembly installed on the electroplating waste gas treatment tower body; and an anti-backflow assembly installed inside the air inlet pipe. In the electroplating waste gas tower of the present invention, when the waste gas is introduced through the air inlet pipe, the pressure of the waste gas product will squeeze the sealing circular plate, thereby causing the sealing circular plate to separate from the annular sealing plate, thereby ensuring the introduction of the electroplating waste gas. Then, under the spraying action of the spray head, the electroplating waste gas can be effectively treated. When the waste gas stops entering, the elastic force of the sleeve spring drives the sealing circular plate close to the annular sealing plate, and the annular sealing plate is sealed by the sealing gasket, thereby effectively preventing the treatment liquid from flowing back, thereby ensuring the stable operation of the waste gas treatment.

[0004] However, in the above technology, a sealing circular plate is separated from an annular sealing plate, so that the exhaust gas enters the exhaust tower through the gap between the sealing circular plate and the annular sealing plate. Since the size of the separation gap is limited, the exhaust gas intake efficiency will be hindered. Therefore, the market urgently needs to develop an exhaust tower that prevents gas backflow to help people solve the existing problem. Utility Model Content

[0005] The purpose of the utility model is to provide an exhaust gas tower that prevents gas backflow, so as to solve the problem that the prior art proposed in the above background technology uses a sealing circular plate to separate from the annular sealing plate, so that the exhaust gas enters the exhaust gas tower through the gap between the sealing circular plate and the annular sealing plate, and the limited size of the separation gap will hinder the exhaust gas intake efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust gas tower for preventing gas backflow, comprising an exhaust gas tower, a Z-shaped air inlet pipe fixedly connected to the lower end of one side of the exhaust gas tower, a circular tubular anti-backflow device fixedly connected to the Z-shaped air inlet pipe, a semicircular closing plate rotatably connected to the upper and lower ends of one side of the interior of the circular tubular anti-backflow device, a rotating shaft fixedly connected to the semicircular closing plate, and a driving device fixedly arranged on the front end of the circular tubular anti-backflow device for driving the two semicircular closing plates to rotate simultaneously in a mirror image.

[0007] Preferably, an L-shaped portion is provided at the position where the Z-shaped air intake pipe is fixedly connected to the exhaust tower, and the L-shaped portion is placed vertically.

[0008] Preferably, the front ends of the two rotating shafts pass through the circular tubular anti-backflow device and extend into the interior of the driving device, and the front ends of the rotating shafts are fixedly connected to turbines inside the driving device.

[0009] Preferably, a driving motor is fixedly connected to the upper end of the driving device, a worm is fixedly connected to the output shaft of the driving motor, and the worm teeth at the upper and lower ends of the middle part of the worm are mirror-imaged.

[0010] Preferably, the turbines at the front ends of the two rotating shafts are respectively meshed and connected with the worm gear teeth at the upper and lower ends of the middle part of the worm.

[0011] Preferably, two circular limiting members are fixedly connected to one side of the rear end of the circular tubular backflow prevention device.

[0012] Preferably, the rear ends of the two rotating shafts pass through the rear end surface of the circular tubular anti-backflow device and are respectively inserted into the interior of the two circular limiting members.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In this utility model, through the setting of a circular tubular anti-backflow device, a circular tubular anti-backflow device is fixedly connected to the Z-shaped air intake pipe, and the upper and lower ends of one side of the inner side of the circular tubular anti-backflow device are rotatably connected with semicircular closing plates, and the two semicircular closing plates are combined into a circular surface to close the space between one side of the circular tubular anti-backflow device and the Z-shaped air intake pipe. The worm is driven by a driving motor to rotate, so that the worm drives the two rotating shafts to rotate in a mirrored manner through two mirrored worm teeth, so that the two semicircular closing plates are closed, and the space between one side of the circular tubular anti-backflow device and the Z-shaped air intake pipe is opened. The exhaust gas enters the exhaust tower from one end of the Z-shaped air intake pipe through the circular tubular anti-backflow device and the L-shaped portion. At the same time, by controlling the amplitude of the rotation of the rotating shaft driven by the driving motor and adjusting the deflection angle of the two semicircular closing plates, the exhaust gas intake rate can be controlled.

[0015] 2. In the utility model, an L-shaped portion is provided at the position where the Z-shaped air intake pipe is fixedly connected to the exhaust tower through the setting of the L-shaped portion. The L-shaped portion is placed vertically. When the exhaust gas is sprayed inside the exhaust tower, the vertically arranged L-shaped portion can effectively prevent the spraying water from flowing into the Z-shaped air intake pipe.

[0016] 3. In this utility model, through the setting of the circular limiting parts, the rear ends of the two rotating shafts pass through the rear end surface of the circular tubular anti-backflow device and are respectively inserted into the two circular limiting parts. The rear ends of the two rotating shafts are limited by the two circular limiting parts to ensure the stability of the rotation of the two rotating shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an exhaust tower for preventing gas backflow according to the utility model;

[0018] Figure 2 This is a main cross-sectional view of the Z-shaped intake pipe of the present utility model;

[0019] Figure 3 This is a side sectional view of the circular tubular anti-backflow device of the present utility model;

[0020] Figure 4 This is a main sectional view of the driving device of the present utility model.

[0021] In the figure: 1. exhaust tower; 101. Z-shaped air inlet pipe; 102. L-shaped portion; 2. circular tubular anti-backflow device; 201. circular limiter; 3. semicircular closing plate; 301. rotating shaft; 302. turbine; 4. driving device; 401. driving motor; 5. worm; 501. worm gear. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: an exhaust gas tower for preventing gas backflow, comprising an exhaust gas tower 1, a Z-shaped air inlet pipe 101 being fixedly connected to the lower end of one side of the exhaust gas tower 1, a circular tubular anti-backflow device 2 being fixedly connected to the Z-shaped air inlet pipe 101, a semicircular closing plate 3 being rotatably connected to the upper and lower ends of one side of the interior of the circular tubular anti-backflow device 2, a rotating shaft 301 being fixedly connected to the semicircular closing plate 3, a driving device 4 for driving the two semicircular closing plates 3 to rotate simultaneously in a mirror-image manner is fixedly provided on one front end of the circular tubular anti-backflow device 2.

[0024] Furthermore, an L-shaped portion 102 is provided at the position where the Z-shaped air intake pipe 101 is fixedly connected to the exhaust tower 1. The L-shaped portion 102 is placed vertically. When the exhaust gas is sprayed inside the exhaust tower 1, the vertically arranged L-shaped portion 102 can effectively prevent the spraying water from flowing into the Z-shaped air intake pipe 101.

[0025] Furthermore, the front ends of the two rotating shafts 301 pass through the circular tubular anti-backflow device 2 and extend into the interior of the driving device 4 . The front ends of the rotating shafts 301 are fixedly connected to the turbines 302 inside the driving device 4 .

[0026] Furthermore, a driving motor 401 is fixedly connected to the upper end of the driving device 4 , a worm 5 is fixedly connected to the output shaft of the driving motor 401 , and worm teeth 501 at the upper and lower ends of the middle part of the worm 5 are mirror-imaged.

[0027] Furthermore, the turbines 302 at the front ends of the two rotating shafts 301 are respectively meshed and connected with the tooth portions of the worm teeth 501 at the upper and lower ends of the middle part of the worm 5, and are combined into a circular surface through two semicircular closing plates 3 to close the space between one side of the circular tubular anti-backflow device 2 and the Z-shaped air intake pipe 101. The worm 5 is driven by the driving motor 401 to rotate, so that the worm 5 synchronously drives the two rotating shafts 301 to rotate in a mirrored manner through two mirrored worm teeth 501, so that the two semicircular closing plates 3 are closed, and the space between one side of the circular tubular anti-backflow device 2 and the Z-shaped air intake pipe 101 is opened. The exhaust gas enters the exhaust tower 1 from one end of the Z-shaped air intake pipe 101 through the circular tubular anti-backflow device 2 and the L-shaped portion 102. At the same time, by controlling the amplitude of the rotation of the rotating shaft 301 driven by the driving motor 401 and adjusting the deflection angle of the two semicircular closing plates 3, the exhaust gas intake rate can be controlled.

[0028] Furthermore, two circular limiting members 201 are fixedly connected to one side of the rear end of the circular tubular anti-backflow device 2 .

[0029] Furthermore, the rear ends of the two rotating shafts 301 pass through the rear end surface of the circular tubular anti-backflow device 2 and are respectively inserted into the two circular limiting members 201. The rear ends of the two rotating shafts 301 are limited by the two circular limiting members 201 to ensure the stability of the rotation of the two rotating shafts 301.

[0030] Working principle: when in use, a Z-shaped air inlet pipe 101 is fixedly connected to the lower end of one side of the exhaust tower 1, and an L-shaped portion 102 is provided at the position where the Z-shaped air inlet pipe 101 is fixedly connected to the exhaust tower 1, and the L-shaped portion 102 is placed vertically. When the exhaust gas is sprayed inside the exhaust tower 1, the vertically arranged L-shaped portion 102 can effectively prevent the spraying water from flowing into the Z-shaped air inlet pipe 101, and the exhaust gas is passed into one end of the Z-shaped air inlet pipe 101. A circular tubular anti-backflow device 2 is fixedly connected to the Z-shaped air inlet pipe 101, and the upper and lower ends of one side of the interior of the circular tubular anti-backflow device 2 are rotatably connected with a semicircular closing plate 3, and a rotating shaft 301 is fixedly connected to the semicircular closing plate 3. The rear ends of the two rotating shafts 301 pass through the rear end surface of the circular tubular anti-backflow device 2 and are respectively inserted into the two circular limiting members 201, and the rear ends of the two rotating shafts 301 are limited by the two circular limiting members 201 to ensure To ensure the stability of the rotation of the two rotating shafts 301, the turbines 302 at the front ends of the two rotating shafts 301 are respectively meshed with the worm teeth 501 at the upper and lower ends of the middle part of the worm 5, and are combined into a circular surface through two semicircular closing plates 3 to close the space between one side of the circular tubular anti-backflow device 2 and the Z-shaped air intake pipe 101. The worm 5 is driven by the driving motor 401 to rotate, so that the worm 5 synchronously drives the two rotating shafts 301 to rotate in a mirrored manner through the two mirrored worm teeth 501, so that the two semicircular closing plates 3 are closed, and the space between one side of the circular tubular anti-backflow device 2 and the Z-shaped air intake pipe 101 is opened. The exhaust gas enters the exhaust tower 1 from one end of the Z-shaped air intake pipe 101 through the circular tubular anti-backflow device 2 and the L-shaped part 102. At the same time, by controlling the amplitude of the rotation of the rotating shaft 301 driven by the driving motor 401 and adjusting the deflection angle of the two semicircular closing plates 3, the exhaust gas intake rate can be controlled.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A waste gas tower for preventing gas backflow, comprising a waste gas tower (1), characterized in that: A Z-shaped air inlet pipe (101) is fixedly connected to the lower end of one side of the exhaust tower (1), a circular tubular anti-backflow device (2) is fixedly connected to the Z-shaped air inlet pipe (101), a semicircular closing plate (3) is rotatably connected to the upper and lower ends of one side of the interior of the circular tubular anti-backflow device (2), a rotating shaft (301) is fixedly connected to the semicircular closing plate (3), and a driving device (4) for driving the two semicircular closing plates (3) to rotate simultaneously in a mirror image is fixedly provided on one front end of the circular tubular anti-backflow device (2).

2. The exhaust gas tower for preventing gas backflow according to claim 1, characterized in that: An L-shaped portion (102) is provided at the position where the Z-shaped air intake pipe (101) is fixedly connected to the exhaust tower (1), and the L-shaped portion (102) is placed vertically.

3. The exhaust gas tower for preventing gas backflow according to claim 1, characterized in that: The front ends of the two rotating shafts (301) pass through the circular tubular anti-backflow device (2) and extend into the interior of the driving device (4). The front ends of the rotating shafts (301) are fixedly connected to a turbine (302) inside the driving device (4).

4. The exhaust gas tower for preventing gas backflow according to claim 3, characterized in that: The upper end of the driving device (4) is fixedly connected to a driving motor (401), the output shaft of the driving motor (401) is fixedly connected to a worm (5), and the worm teeth (501) at the upper and lower ends of the middle part of the worm (5) are arranged in a mirror image.

5. The exhaust gas tower for preventing gas backflow according to claim 4, characterized in that: The turbines (302) at the front ends of the two rotating shafts (301) are respectively meshed and connected with the tooth portions of the worm gear (501) at the upper and lower ends of the middle portion of the worm gear (5).

6. The exhaust gas tower for preventing gas backflow according to claim 1, characterized in that: Two circular limiting members (201) are fixedly connected to one side of the rear end of the circular tubular anti-backflow device (2).

7. The exhaust gas tower for preventing gas backflow according to claim 6, characterized in that: The rear ends of the two rotating shafts (301) pass through the rear end surface of the circular tubular anti-backflow device (2) and are respectively inserted into the interior of the two circular limiting members (201).

Images