Automatic hydrogen discharge valve for wet dust removal system

Abstract

The utility model relates to the technical field of wet dust removal hydrogen discharge, in particular to an automatic hydrogen discharge valve for a wet dust removal system, which comprises a hollow valve body, one end of the valve body is communicated with the top of a pipeline of the wet dust removal system, and a cover plate is rotatably arranged at the other end of the valve body. The cover plate is used for sealing the upper opening end of the valve body. The balance rod is rotationally arranged in the valve body, one end of the balance rod extends into the wet dust removal system pipeline and is provided with a balance weight ball, an opening position exists on the rotating track of the balance rod, and when the balance rod rotates to the opening position, the end, away from the balance weight ball, of the balance rod abuts against the bottom of the cover plate; the balance weight ball is used for providing pulling force for the balance rod to rotate close to the opening position, and the weight of the balance weight ball is larger than that of the cover plate. The wet-type dust removal system has the effects of reducing hydrogen accumulation, reducing the explosive risk in the wet-type dust removal system and improving the on-site safety.

Description

Technical Field

[0001] The utility model relates to the technical field of wet dust removal hydrogen discharge, in particular to an automatic hydrogen discharge valve for a wet dust removal system. Background Art

[0002] A wet dust removal system is a technology commonly used in industrial environments to control dust and particulate emissions. It captures and removes particulate matter suspended in the gas by bringing the gas into contact with water, using the wettability and impact force of water. A wet dust removal system for metal dust continuously collects metal dust during operation. Metal dust and the water medium in the dust removal system continuously undergo chemical reactions during contact to produce hydrogen. When the wet dust removal system is shut down, the metal dust and the water medium therein coexist and slowly produce hydrogen. The coexistence of these accumulated hydrogen and metal dust can bring about a risk of flammability and explosion. However, most of the current hydrogen discharge measures for wet dust removal systems for metal dust are to open a hydrogen discharge port at the top of the pipeline. This method can cause air leakage in the wet dust removal system during operation, thereby affecting the dust removal efficiency of the wet dust removal system itself, which needs to be solved urgently. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the present application provides an automatic hydrogen exhaust valve for a wet dust removal system.

[0004] The above invention objectives of the present application are achieved through the following technical solutions:

[0005] A valve body, wherein the valve body is hollow, one end of the valve body is connected to the top of the wet dust removal system pipeline and the other end is rotatably provided with a cover plate, and the cover plate is used to close the upper opening end of the valve body;

[0006] A balance bar, the balance bar is rotatably arranged inside the valve body, one end of the balance bar extends into the wet dust removal system pipeline and is provided with a counterweight ball, there is an open position on the rotation trajectory of the balance bar, when the balance bar rotates to the open position, the end of the balance bar away from the counterweight ball abuts against the bottom of the cover plate, the counterweight ball is used to provide the balance bar with a pulling force to rotate close to the open position, and the weight of the counterweight ball is greater than the weight of the cover plate.

[0007] By adopting the above technical solution, when the wet dust removal system is started and operated, airflow is generated in the pipeline, and the counterweight ball located inside the pipeline is pushed by the airflow, causing the counterweight ball to deviate with the direction of the airflow, thereby driving the balance bar to rotate away from the open position. At this time, the cover plate rotates and presses down under the action of the internal and external pressure difference and its own gravity until the upper opening end of the valve body is closed, so that the entire valve is in a closed state, avoiding air leakage, reducing air volume loss, and not affecting the overall operation of the wet dust removal system. When the wet dust removal system is shut down, the counterweight ball automatically moves under the action of its own gravity. The valve is then opened and the balance bar is released, and at the same time, a pulling force is provided to the balance bar to rotate close to the open position, so as to drive the balance bar to rotate to the open position, so that the balance bar abuts against the bottom of the cover plate. Since the weight of the counterweight ball is greater than the weight of the cover plate, the thrust transmitted to the balance bar by the counterweight ball is greater than the gravity of the cover plate itself, so that the balance bar can lift the cover plate and complete the opening of the valve. At this time, the hydrogen inside the wet dust removal system pipeline can be discharged from the upper opening end of the valve body, thereby reducing hydrogen accumulation, reducing the risk of flammable explosion inside the wet dust removal system, and improving the safety of the site. The structure is simple and easy to use.

[0008] In a preferred example, the present application can be further configured as follows: a rotating shaft is fixedly connected inside the valve body, and the middle part of the balance rod is rotatably connected to the middle part of the rotating shaft by means of a bearing connection.

[0009] By adopting the above technical solution, a rotating shaft is set inside the valve body, which can provide a rotational installation position for the balance rod, and the bearing connection method can improve the stability of the rotational installation of the balance rod and avoid the balance rod from sliding on the rotating shaft.

[0010] In a preferred example, the present application can be further configured as follows: the two opposite sides of the balance pole are hollowed out.

[0011] By adopting the above technical solution, the hollow setting can reduce the overall weight of the balance pole, so as to reduce the inertia force of the balance pole during the rotation process, thereby speeding up the response speed of the balance pole.

[0012] In a preferred example, the present application can be further configured as follows: the balance rod is arranged in an arc shape at one end away from the counterweight ball.

[0013] By adopting the above technical solution, the damage to the cover plate can be reduced when the balance bar abuts against the bottom of the cover plate.

[0014] In a preferred example, the present application can be further configured as follows: one of the side surfaces of the valve body is an inclined surface, the inclined surface is located on the trajectory of the balance rod rotating away from the open position, and the inclined surface is used to abut against the balance rod.

[0015] By adopting the above technical solution, one side of the valve body is set as an inclined surface, which can limit the rotation path of the balance bar when the wet dust removal system is started, thereby preventing the balance bar from causing the counterweight ball to over-turn and cause damage.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. When the wet dust removal system is started, airflow is generated in the pipeline. The counterweight ball inside the pipeline is pushed by the airflow, causing the counterweight ball to deviate with the direction of the airflow, thereby driving the balance bar to rotate away from the open position. At this time, the cover plate rotates and presses down under the action of the internal and external pressure difference and its own gravity until the upper opening end of the valve body is closed, so that the entire valve is in a closed state, avoiding air leakage, reducing air volume loss, and not affecting the overall operation of the wet dust removal system. When the wet dust removal system is shut down, the counterweight ball naturally falls under the action of its own gravity. At the same time, a pulling force is provided to the balance bar to rotate close to the open position, so as to drive the balance bar to rotate to the open position, so that the balance bar abuts against the bottom of the cover plate. Since the weight of the counterweight ball is greater than the weight of the cover plate, the thrust transmitted to the balance bar by the counterweight ball is greater than the gravity of the cover plate itself, so that the balance bar can lift the cover plate and complete the opening of the valve. At this time, the hydrogen inside the wet dust removal system pipeline can be discharged from the upper opening end of the valve body, thereby reducing hydrogen accumulation, reducing the risk of flammable explosion inside the wet dust removal system, and improving the safety of the site. It has a simple structure and is easy to use.

[0018] 2. The hollow setting of the balance bar can reduce the overall weight of the balance bar, so as to reduce the inertia force of the balance bar during the rotation process, thereby speeding up the response speed of the balance bar.

[0019] 3. Setting one side of the valve body as an inclined surface can limit the rotation path of the balance bar when the wet dust removal system is started, so as to prevent the balance bar from causing the counterweight ball to overturn and cause damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an automatic hydrogen exhaust valve for a wet dust removal system in one embodiment of the present application;

[0021] Figure 2 It is a cross-sectional schematic diagram of the opening and closing of the valve of the dust removal system when the valve body is installed inside the pipeline of the wet dust removal system in one embodiment of the present application;

[0022] Figure 3 It is a cross-sectional schematic diagram of the opening of the dust removal system shutdown valve when the valve body is installed inside the pipeline of the wet dust removal system in one embodiment of the present application.

[0023] Figure numerals: 1. valve body; 2. cover plate; 3. balance rod; 4. counterweight ball; 5. rotating shaft; 6. inclined surface. DETAILED DESCRIPTION

[0024] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0025] It should be noted that the terms "first", "second", etc. in the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0026] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0027] An automatic hydrogen exhaust valve for a wet dust removal system of the present application is described below with reference to the accompanying drawings.

[0028] Reference Figures 1 to 3 The automatic hydrogen exhaust valve for a wet dust removal system includes a valve body 1, which is hollow. One end of the valve body 1 is connected to the top of the wet dust removal system pipeline and the other end is rotatably provided with a cover plate 2, which is used to close the upper opening end of the valve body 1. A balance bar 3 is rotatably provided inside the valve body 1. One end of the balance bar 3 extends into the inside of the wet dust removal system pipeline and is provided with a counterweight ball 4. There is an open position on the rotation trajectory of the balance bar 3. When the balance bar 3 rotates to the open position, one end of the balance bar 3 away from the counterweight ball 4 abuts against the bottom of the cover plate 2. The counterweight ball 4 is used to provide a pulling force for the balance bar 3 to rotate close to the open position, and the weight of the counterweight ball 4 is greater than the weight of the cover plate 2.

[0029] Specifically, the shape of the valve body 1 can be selected to be rectangular, cylindrical, trapezoidal, etc. In this embodiment, the cross-sectional shape of the valve body 1 is a right-angled trapezoid. Figure 2 and Figure 3As shown, the lower bottom edge of the valve body 1 is installed on the windward side of the wet dust removal system pipeline, that is, when the wet dust removal system is started and operated, airflow is generated in the pipeline, and the counterweight ball 4 located inside the pipeline is pushed by the airflow, so that the counterweight ball 4 is offset with the direction of the airflow, thereby driving the balance bar 3 to rotate away from the open position. At this time, the cover plate 2 rotates and presses down under the action of the internal and external pressure difference and its own gravity until the upper opening end of the valve body 1 is closed, so that the entire valve is in a closed state, avoiding air leakage, reducing air volume loss, and not affecting the overall operation of the wet dust removal system. When the wet dust removal system is shut down, the counterweight ball 4 is on its own. It naturally hangs down under the action of gravity, and at the same time provides a pulling force to rotate the balance rod 3 close to the open position, so as to drive the balance rod 3 to rotate to the open position, so that the balance rod 3 abuts against the bottom of the cover plate 2. Since the weight of the counterweight ball 4 is greater than the weight of the cover plate 2, the thrust transmitted to the balance rod 3 by the counterweight ball 4 is greater than the gravity of the cover plate 2 itself, so that the balance rod 3 can lift the cover plate 2 and complete the opening of the valve. At this time, the hydrogen inside the wet dust removal system pipeline can be discharged from the upper opening end of the valve body 1, thereby reducing hydrogen accumulation, reducing the risk of flammable explosion inside the wet dust removal system, and improving the safety of the site. The structure is simple and easy to use.

[0030] It should be noted that due to the low density of hydrogen, it will gather at the top of the wet dust removal system pipeline. Installing the valve body 1 to the top of the pipeline can facilitate the discharge of hydrogen from the open end of the valve body 1.

[0031] Among them, in order to realize the rotation of the balance rod 3, a rotating shaft 5 is fixedly connected inside the valve body 1, and the middle part of the balance rod 3 is rotatably connected to the middle part of the rotating shaft 5 by a bearing connection. By arranging the rotating shaft 5 inside the valve body 1, a rotational installation position can be provided for the balance rod 3, and the bearing connection method can improve the stability of the rotational installation of the balance rod 3 and prevent the balance rod 3 from sliding on the rotating shaft 5.

[0032] Furthermore, two opposite sides of the balance pole 3 are hollowed out, and the hollowing out of the balance pole 3 can reduce the overall weight of the balance pole 3 to reduce the inertia force of the balance pole 3 during the rotation process, thereby accelerating the response speed of the balance pole 3.

[0033] Furthermore, the end of the balancing rod 3 away from the weight ball 4 is arranged in an arc shape, so that when the balancing rod 3 abuts against the bottom of the cover plate 2, the damage to the cover plate 2 is reduced.

[0034] In addition, one of the side surfaces of the valve body 1 is an inclined surface 6, which is located on the trajectory of the balance rod 3 rotating away from the open position. The inclined surface 6 is used to abut the balance rod 3. By setting one side of the valve body 1 as the inclined surface 6, the rotation path of the balance rod 3 can be limited when the wet dust removal system is started, thereby preventing the balance rod 3 from causing the counterweight ball 4 to flip excessively and cause damage.

[0035] The implementation principle of an automatic hydrogen exhaust valve for a wet dust removal system in an embodiment of the present application is as follows: when the wet dust removal system is started and operated, the counterweight ball 4 is offset with the airflow in the pipeline, driving the balance rod 3 to rotate away from the open position, and the cover plate 2 automatically closes the valve body 1 under the action of the internal and external pressure difference and its own gravity. After the wet dust removal system is shut down, the counterweight ball 4 naturally falls down under the action of its own gravity, driving the balance rod 3 to rotate to the open position to lift the cover plate 2, completing the automatic opening of the valve, and realizing the safe and automatic discharge of hydrogen inside the wet dust removal system.

[0036] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. An automatic hydrogen exhaust valve for a wet dust removal system, characterized in that: include: A valve body (1), wherein the valve body (1) is hollow, one end of the valve body (1) is connected to the top of the wet dust removal system pipeline and the other end is rotatably provided with a cover plate (2), and the cover plate (2) is used to close the upper opening end of the valve body (1); A balance bar (3), wherein the balance bar (3) is rotatably arranged inside the valve body (1), one end of the balance bar (3) extends into the inside of the wet dust removal system pipeline and is provided with a counterweight ball (4), and there is an open position on the rotation trajectory of the balance bar (3). When the balance bar (3) is rotated to the open position, one end of the balance bar (3) away from the counterweight ball (4) abuts against the bottom of the cover plate (2), and the counterweight ball (4) is used to provide the balance bar (3) with a pulling force to rotate close to the open position, and the weight of the counterweight ball (4) is greater than the weight of the cover plate (2).

2. The automatic hydrogen exhaust valve for a wet dust removal system according to claim 1, characterized in that: A rotating shaft (5) is fixedly connected inside the valve body (1), and the middle part of the balance rod (3) is rotatably connected to the middle part of the rotating shaft (5) by means of a bearing connection.

3. The automatic hydrogen exhaust valve for a wet dust removal system according to claim 1, characterized in that: The two opposite sides of the balance bar (3) are hollowed out.

4. The automatic hydrogen exhaust valve for a wet dust removal system according to claim 1, characterized in that: The balancing rod (3) is arranged in an arc shape at one end away from the counterweight ball (4).

5. The automatic hydrogen exhaust valve for a wet dust removal system according to claim 1, characterized in that: One side surface of the valve body (1) is an inclined surface (6), and the inclined surface (6) is located on a trajectory of the balance rod (3) rotating away from the open position, and the inclined surface (6) is used to abut against the balance rod (3).

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