Boiler valve body

Abstract

The utility model discloses a boiler valve body which comprises a lower valve body, the top of the lower valve body is fixedly connected with an upper valve body through a bolt, and the boiler valve body further comprises a filtering device installed in the lower valve body; the adjusting device is arranged in the lower valve body and the upper valve body; the observation device is mounted above the upper valve body; and the filtering device is used for filtering the discharged gas, and the lower valve body can be cleaned more conveniently. The utility model relates to the technical field of gate valves, the boiler valve body is matched with the lower valve body through the filtering device, the filtering device can filter and purify conveyed gas, dust particles in flue gas are prevented from being discharged into surrounding air massively, pollution to the surrounding air is further reduced, and the service life of the boiler valve body is prolonged. And meanwhile, a worker can quickly open the boiler valve body, so that the dredging speed of the boiler valve body is increased, and the use of the worker is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a boiler valve body. Background Art

[0002] The gate valve is a gate plate of an opening and closing part. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve;

[0003] When using traditional gate valves, they do not have a filtering function, which makes it impossible to filter impurities in the internal conveying gas, causing the conveying gas to be directly discharged into the atmosphere, thereby causing excessive pollution to the atmospheric environment, which in turn affects the use of the staff and endangers the lives of the staff. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a boiler valve body, which solves the problem that when the traditional gate valve is in use, since it does not have a filtering function, impurities in the internal conveying gas cannot be filtered, resulting in the conveying gas being directly discharged into the atmosphere, thereby causing excessive pollution to the atmospheric environment, which in turn affects the use of the staff and endangers the lives of the staff.

[0005] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a boiler valve body, including a lower valve body, the top of the lower valve body is fixedly connected to the upper valve body by bolts, and the boiler valve body also includes: a filtering device, installed inside the lower valve body; an adjusting device, arranged inside the lower valve body and the upper valve body; an observation device, installed above the upper valve body; wherein the filtering device filters the exhaust gas and can also clean the lower valve body more conveniently, the adjusting device can change the working state of the boiler valve body, and also has an automatic pressure relief function, and the observation device can observe the degree of downward pressure of the internal components of the adjusting device.

[0006] Preferably, a second sealing gasket is installed inside the lower valve body, a third sealing gasket is installed at the connection between the lower valve body and the upper valve body, and a fourth sealing gasket is installed above the interior of the upper valve body.

[0007] Preferably, the filtering device includes: a filter screen, which is arranged inside the lower valve body; a cover body, which is installed below the lower valve body; and a first sealing gasket, which is arranged at the connecting gap between the lower valve body and the cover body; wherein the filter screen filters the circulating air passing through the interior of the lower valve body, and the interior of the lower valve body is quickly cleaned by opening the cover body.

[0008] Preferably, the regulating device comprises: a valve plate, which is arranged inside the lower valve body; a first spring, which is fixedly connected to the top of the valve plate; two first support rods are provided, both of which are installed above the valve plate; two second support rods are provided, which are respectively sleeved on the outer walls of the two first support rods; a baffle plate, which is installed above the two second support rods and fixedly connected to the top of the first spring, and the outer wall of the baffle plate is movably connected to the inner wall of the second sealing gasket; a threaded rod, which is rotatably connected to the inner wall of the baffle plate through a sealing bearing and is threadedly connected to the inner wall of the upper valve body, and the outer wall of the threaded rod is movably connected to the inner wall of the fourth sealing gasket; a handwheel, which is installed on the top of the threaded rod; wherein, the handwheel drives the baffle plate and the valve plate assembly to move through the threaded rod, so as to change the working state of the boiler valve body. When the air pressure is too high, the airflow can push the valve plate to move upward and compress the first spring at the same time.

[0009] Preferably, the observation device includes: a sleeve installed above the upper valve body; a ball movably connected to the bottom of the handwheel; a vertical rod inserted into the interior of the sleeve and movably connected to the outer wall of the ball; a second spring installed in the interior of the sleeve and fixedly connected to the bottom of the vertical rod; wherein the vertical rod can move along the inner wall of the sleeve while compressing the second spring. Beneficial Effects

[0010] The utility model provides a boiler valve body, which has the following beneficial effects: the boiler valve body can filter and purify the delivered gas through the cooperation of the filter device and the lower valve body, so as to prevent dust particles in the smoke from being discharged into the surrounding air in large quantities, thereby reducing the pollution of the surrounding air, and at the same time, the staff can quickly open the boiler valve body, thereby improving the dredging speed of the boiler valve body and facilitating the use of the staff.

[0011] Through the cooperation of the adjusting device, the observing device, the lower valve body and the upper valve body, the pressure relief adjustment can be automatically performed when the gas pressure is too high to avoid the safety hazard caused by excessive pressure inside the boiler. The pressure relief degree of the boiler valve body can also be conditioned, so it can meet a variety of different usage situations, thereby bringing convenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A cross-sectional view of

[0014] Figure 3 for Figure 2 A schematic diagram of the structure of the first spring, the first support rod and the cover body;

[0015] Figure 4 for Figure 2 Schematic diagram of the structure of the middle threaded rod, vertical rod and handwheel.

[0016] In the figure: 1. lower valve body, 2. adjusting device, 201. threaded rod, 202. hand wheel, 203. valve plate, 204. first spring, 205. first support rod, 206. baffle, 207. second support rod, 3. third sealing gasket, 4. observation device, 401. second spring, 402. sleeve, 403. vertical rod, 404. ball bearing, 5. filtering device, 501. filter screen, 502. cover body, 503. first sealing gasket, 6. upper valve body, 7. fourth sealing gasket, 8. second sealing gasket. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0019] When using a traditional gate valve, since it does not have a filtering function, the impurities in the internal conveying gas cannot be filtered, causing the conveying gas to be directly discharged into the atmosphere, which in turn causes excessive pollution to the atmospheric environment, affecting the use of the staff and endangering the lives of the staff;

[0020] In view of this, the utility model provides a boiler valve body, a filter device and a lower valve body. The filter device can filter and purify the transported gas to prevent a large amount of dust particles in the flue gas from being discharged into the surrounding air, thereby reducing the pollution of the surrounding air. At the same time, the staff can quickly open the boiler valve body, thereby improving the boiler valve body unblocking speed and facilitating the use of the staff.

[0021] Embodiment 1: Figure 1, 2 , 3 and 4 show that a boiler valve body comprises a lower valve body 1, the top of the lower valve body 1 is fixedly connected with an upper valve body 6 by bolts, and the boiler valve body further comprises: a filter device 5 installed inside the lower valve body 1; an adjustment device 2, arranged inside the lower valve body 1 and the upper valve body 6; an observation device 4, installed above the upper valve body 6; wherein the filter device 5 filters the exhaust gas and can also clean the lower valve body 1 more conveniently, the adjustment device 2 can change the working state of the boiler valve body, and also has an automatic pressure relief function, and the observation device 4 can observe the downward pressure degree of the internal components of the adjustment device 2;

[0022] In the specific implementation process, it is worth pointing out that the filter device 5 can filter and purify the exhausted gas, the adjustment device 2 can change the working state of the boiler valve body, and the observation device 4 can make it more convenient for the staff to check the compression degree of the first spring 204, so as to adjust the automatic pressure relief range of the boiler valve body;

[0023] Furthermore, a second sealing gasket 8 is installed inside the lower valve body 1, a third sealing gasket 3 is installed at the connection between the lower valve body 1 and the upper valve body 6, and a fourth sealing gasket 7 is installed above the interior of the upper valve body 6;

[0024] In the specific implementation process, it is worth pointing out that the second sealing gasket 8, the third sealing gasket 3 and the fourth sealing gasket 7 can improve the sealing performance of the boiler valve body, thereby preventing the leakage of the transported gas. The specific materials are not limited as long as they meet the use requirements.

[0025] Specifically, when using the boiler valve body, the staff installs the boiler valve body on the boiler pipe, and then the staff changes the operating state of the boiler valve body through the adjusting device 2. When adjusting through the adjusting device 2, the staff can judge the compression degree of the first spring 204 by observing the position state of the device 4, and then control the automatic pressure relief range of the boiler valve body. During use, the filtering device 5 can filter impurities in the conveying gas. Then the staff opens the boiler valve body and cleans the impurities out of the interior of the lower valve body 1, and then it can be used again.

[0026] Embodiment 2: By Figure 1 and 2 It can be seen that the filter device 5 includes: a filter screen 501, the mesh number of the filter screen 501 is not specifically limited, and it can meet the use requirements, and is arranged inside the lower valve body 1; a cover body 502, which is installed below the lower valve body 1; a first sealing gasket 503, which is arranged at the connection gap between the lower valve body 1 and the cover body 502; wherein the filter screen 501 filters the circulating air passing through the interior of the lower valve body 1, and the interior of the lower valve body 1 is quickly cleaned by opening the cover body 502;

[0027] In the specific implementation process, it is worth pointing out that when the boiler valve body is used, when the gas is discharged, the filter 501 can filter the discharged gas, and the staff can clean the impurities inside the lower valve body 1 by opening the cover 502;

[0028] Specifically, based on the above-mentioned embodiment 1, when gas is discharged, the gas inside the boiler is filtered and purified through the filter 501. When the lower valve body 1 needs to be cleaned, the staff can open the cover 502 and then use appropriate tools to clean the impurities on the outer wall of the lower valve body 1 and the filter 501.

[0029] Embodiment 3: By Figure 1 , 2 , 3 and 4, the regulating device 2 includes: a valve plate 203, which is arranged inside the lower valve body 1; a first spring 204, which is fixedly connected to the upper part of the valve plate 203; two first support rods 205, which are arranged and are both installed above the valve plate 203; two second support rods 207, which are arranged and are respectively sleeved on the outer walls of the two first support rods 205; a baffle 206, which is installed above the two second support rods 207 and is fixedly connected to the top of the first spring 204, and the outer wall of the baffle 206 is movable with the inner wall of the second sealing gasket 8. The threaded rod 201 is rotatably connected to the inner wall of the baffle 206 through a sealed bearing, and is threadedly connected to the inner wall of the upper valve body 6. The outer wall of the threaded rod 201 is movably connected to the inner wall of the fourth sealing gasket 7. The handwheel 202 is installed on the top of the threaded rod 201. The handwheel 202 drives the baffle 206 and the valve plate 203 components to move through the threaded rod 201, which can change the working state of the boiler valve body. When the air pressure is too high, the airflow can push the valve plate 203 to move upward, while compressing the first spring 204.

[0030] In the specific implementation process, it is worth pointing out that when the internal gas pressure of the boiler is too high, the gas will squeeze the valve plate 203 to move upward, thereby compressing the first spring 204. When the valve plate 203 leaves the inner wall of the lower valve body 1, the pressure can be automatically released, and the baffle plate 206 can be driven by the threaded rod 201 to move along the inside of the lower valve body 1, thereby changing the position of the valve plate 203 and the compression state of the first spring 204.

[0031] Specifically, on the basis of the above-mentioned embodiment 1, when the air pressure inside the boiler valve body is too high, the gas squeezes the valve plate 203 upward, and the valve plate 203 drives the first support rod 205 to move along the inner wall of the second support rod 207, and compresses the first spring 204 at the same time. At this time, when the valve plate 203 leaves the inner wall of the lower valve body 1, the pressure can be automatically released. When the pressure is less than the elastic force of the first spring 204, the first spring 204 can push the valve plate 203 back to its original position, thereby achieving sealing. When it is necessary to open the boiler valve body, the staff twists the threaded rod 201. At this time, the threaded rod 201 can drive the valve plate 203 and other components to move upward through the baffle 206. When the valve plate 203 leaves the inner wall of the lower valve body 1, the opening work of the boiler valve body can be completed.

[0032] Embodiment 4: By Figure 1 , 2 As can be seen from Figures 4 and 5, the observation device 4 includes: a sleeve 402, installed above the upper valve body 6; a ball 404, movably connected to the bottom of the hand wheel 202; a vertical rod 403, inserted into the inside of the sleeve 402, and movably connected to the outer wall of the ball 404; a second spring 401, installed inside the sleeve 402, and fixedly connected to the bottom of the vertical rod 403; wherein the vertical rod 403 can move along the inner wall of the sleeve 402, while compressing the second spring 401;

[0033] In the specific implementation process, it is worth pointing out that the surface of the vertical rod 403 is processed with scales, and the compression degree of the first spring 204 can be judged by the position change between the vertical rod 403 and the sleeve 402;

[0034] Specifically, on the basis of the above-mentioned embodiments one and three, when adjusting the compression degree of the first spring 204, when the height of the hand wheel 202 changes, the second spring 401 can drive the vertical rod 403 to move along the inner wall of the sleeve 402. At this time, the staff can judge the position of the vertical rod 403 moving along the inside of the sleeve 402 according to the scale, thereby inferring the compression degree of the first spring 204.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler valve body, comprising a lower valve body (1), characterized in that: The top of the lower valve body (1) is fixedly connected to the upper valve body (6) by bolts, and the boiler valve body further comprises: A filtering device (5) installed inside the lower valve body (1); An adjusting device (2) is arranged inside the lower valve body (1) and the upper valve body (6); An observation device (4) installed above the upper valve body (6); The filtering device (5) filters the exhaust gas and can also more conveniently clean the lower valve body (1); the regulating device (2) can change the working state of the boiler valve body and also has an automatic pressure relief function; the observing device (4) can observe the degree of downward pressure of the internal components of the regulating device (2).

2. A boiler valve body according to claim 1, characterized in that: A second sealing gasket (8) is installed inside the lower valve body (1), a third sealing gasket (3) is installed at the connection between the lower valve body (1) and the upper valve body (6), and a fourth sealing gasket (7) is installed above the interior of the upper valve body (6).

3. A boiler valve body according to claim 1, characterized in that: The filtering device (5) comprises: A filter screen (501) is arranged inside the lower valve body (1); A cover body (502) is installed below the lower valve body (1); A first sealing gasket (503) is arranged at a connection gap between the lower valve body (1) and the cover body (502); The filter (501) filters the circulating air passing through the interior of the lower valve body (1), and the interior of the lower valve body (1) is quickly cleaned by opening the cover (502).

4. A boiler valve body according to claim 1, characterized in that: The regulating device (2) comprises: A valve plate (203) is arranged inside the lower valve body (1); A first spring (204) fixedly connected to the upper side of the valve plate (203); Two first support rods (205) are provided and are both installed above the valve plate (203); Two second support rods (207) are provided and are respectively sleeved on the outer walls of the two first support rods (205); a baffle (206) installed above the two second support rods (207) and fixedly connected to the top of the first spring (204); an outer wall of the baffle (206) is movably connected to an inner wall of the second sealing gasket (8); A threaded rod (201) is rotatably connected to the inner wall of the baffle (206) via a sealing bearing and is threadably connected to the inner wall of the upper valve body (6); an outer wall of the threaded rod (201) is movably connected to the inner wall of the fourth sealing gasket (7); A hand wheel (202) mounted on the top of the threaded rod (201); The hand wheel (202) drives the baffle plate (206) and the valve plate (203) assembly to move via the threaded rod (201), thereby changing the working state of the boiler valve body. When the air pressure is too high, the airflow can push the valve plate (203) to move upward, while compressing the first spring (204).

5. A boiler valve body according to claim 4, characterized in that: The observation device (4) comprises: A sleeve (402) is installed above the upper valve body (6); A ball (404) movably connected to the bottom of the hand wheel (202); A vertical rod (403) is inserted into the interior of the sleeve (402) and is movably connected to the outer wall of the ball (404); A second spring (401) is installed inside the sleeve (402) and is fixedly connected to the bottom of the vertical rod (403); The vertical rod (403) can move along the inner wall of the sleeve (402) while compressing the second spring (401).

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