High-temperature-resistant automatic flue gas regulating valve

Abstract

The utility model discloses a high-temperature-resistant smoke automatic regulating valve which comprises a valve body, a power assembly is arranged at the top end of the valve body, the output end of the power assembly is fixed with a valve plate assembly in a transmission mode through a rotating rod, an air inlet assembly is arranged at the bottom end of the valve body, and the valve plate assembly comprises a valve plate body and outer cover pieces arranged on the outer side walls of the two ends of the valve plate body. A gas inlet hole is formed in the bottom end of the valve plate body, a rotating hole is formed in the top end of the valve plate body, a novel valve plate assembly structure is designed, a user can flatly replace the device in an existing flue gas adjusting valve, the top end of the device and a rotating rod are fixed in a transmission mode, and therefore when a heat exchange medium at the bottom flows into the valve plate body from a gas inlet pipe, the heat exchange medium is not prone to falling off. The disc groove structure formed in the valve plate body can fill three fourths of the area of the valve plate body, the cooling and heat exchange effects are achieved, and after a medium in the valve plate body reaches the designated temperature, the medium can be pumped out through the air inlet pipe and replaced, and the effect of keeping the proper temperature is achieved.

Description

Technical Field

[0001] The utility model relates to the field of regulating valves, in particular to a high-temperature resistant flue gas automatic regulating valve. Background Art

[0002] A pneumatic high-temperature valve is a pneumatic valve used in high-temperature environments. The pneumatic high-temperature valve in the prior art includes a valve body, a rotary cylinder, a valve shaft, and a blade. An air inlet interface is provided on one side of the valve body, and an air outlet interface is provided on the other side. The blade and the valve shaft are provided inside the air inlet interface. The power output end of the rotary cylinder is connected to the valve shaft, and the valve shaft is connected to the blade. When the pneumatic high-temperature valve is used in a high-temperature furnace, the pneumatic high-temperature valve is generally in a closed state. When the pressure of the high-temperature furnace is too high, the rotary cylinder drives the blade to rotate through the valve shaft, so that the valve opens to exhaust air.

[0003] During use, since the valve shaft and blades are located in the air inlet port, the following problems may occur:

[0004] 1. The valve shaft and blades are in direct contact with high-temperature airflow, causing the valve shaft and blades to be deformed due to high temperature, affecting normal use.

[0005] 2. There is a gap between the valve shaft and the blade, and the sealing is not good enough, resulting in large air leakage. It cannot be used in situations where high sealing requirements are required, especially when used in high-temperature exhaust gas furnaces. Leakage of toxic and harmful exhaust gases can easily lead to serious consequences. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a high-temperature resistant flue gas automatic regulating valve. Therefore, when the heat exchange medium at the bottom flows into the valve plate body from the air inlet pipe, it can fill three-quarters of the area of ​​the valve plate body through the disc groove structure opened in the valve plate body, thereby achieving the effect of cooling and heat exchange. After the medium inside the valve plate body reaches the specified temperature, the medium can be extracted through the air inlet pipe and replaced to achieve the effect of maintaining a suitable temperature.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-temperature resistant flue gas automatic regulating valve, comprising a valve body, a power assembly is arranged at the top of the valve body, the output end of the power assembly is fixed to the valve plate assembly through a rotating rod, an air intake assembly is arranged at the bottom end of the valve body, the valve plate assembly comprises a valve plate body and an outer cover member arranged on the outer side walls at both ends of the valve plate body, a gas inlet hole is opened at the bottom end of the valve plate body, a rotating hole is opened at the top end of the valve plate body, a disc groove is opened in the middle part of the valve plate body, outer grooves are opened inwardly on the outer side walls at both ends of the valve plate body, and an inner groove is opened inwardly in the middle part of each group of the outer grooves, the outer cover member comprises a heat-resistant sleeve, an outer ring arranged on the outer side wall of the heat-resistant sleeve and an inner ring arranged on the inner side of the outer ring, and the air intake assembly comprises an air intake pipe and a positioning ring arranged on the outer side of the top end of the air intake pipe.

[0008] As a preferred technical solution of the utility model, the rotating hole and the gas inlet hole are connected to each other, and the disc groove and the gas inlet hole remain connected, and the bottom end of the rotating rod is inserted into the rotating hole to realize power transmission.

[0009] As a preferred technical solution of the present utility model, the maximum diameter of the disc groove is three quarters of the diameter of the valve plate body.

[0010] As a preferred technical solution of the utility model, the size of the inner ring is matched with the size of the inner groove, and the inner diameter of the outer ring is the same as the outer diameter of the outer groove.

[0011] As a preferred technical solution of the utility model, a rotation groove is opened outward from the top end of the gas inlet hole, and the size of the rotation groove is matched with the size of the positioning ring.

[0012] As a preferred technical solution of the utility model, a check valve is sleeved on the outer side of the air intake pipe.

[0013] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0014] 1. In this device, by designing a new valve plate assembly structure, the user can replace this device in the existing flue gas regulating valve, and fix its top end with the rotating rod transmission, and the air inlet pipe at the bottom is connected with the rotating groove in the middle of the gas inlet hole through a positioning ring. First, it can be rotated conveniently, and second, it can reduce the leakage of the sealed medium. Therefore, when the heat exchange medium at the bottom flows into the valve plate body from the air inlet pipe, it can fill three-quarters of the area of ​​the valve plate body through the disc groove structure opened in the valve plate body, so as to achieve the effect of cooling and heat exchange. When the medium inside the valve plate body reaches the specified temperature, the medium can be extracted through the air inlet pipe and replaced to achieve the effect of maintaining the appropriate temperature.

[0015] 2. In the present device, through the outer cover structure, the user can fix and clamp the two sets of outer covers to the inner groove and outer groove provided on the valve plate body. In the outer cover, the inner ring and the outer ring shell are fixed in contact with the inner groove and the outer groove. Since the inner diameter of the outer ring is the same as the inner diameter of the valve plate body, the outer ring is wrapped on the outside of the valve plate body. The physical properties of the heat-resistant sleeve can be used to block the influence of the external high-temperature medium on the valve plate body, thereby achieving the effect of extending the use time. Compared with the existing coating structure, the structure of this sleeve is easy to replace. Users can install outer covers with different functions as needed to meet the actual use needs on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is one of the structural split diagrams of the utility model;

[0018] Figure 3 This is the second structural split diagram of the utility model;

[0019] Figure 4 This is a structural disassembly diagram of the valve plate assembly of the utility model;

[0020] Figure 5 It is a structural cross-sectional view of the valve plate body of the utility model;

[0021] Figure 6 It is a structural cross-sectional view of the outer cover of the utility model.

[0022] Among them: 1. valve body; 2. power assembly; 21. rotating rod; 3. valve plate assembly; 31. valve plate body; 311. gas inlet hole; 312. rotating hole; 313. outer groove; 314. inner groove; 315. disc groove; 316. rotating groove; 32. outer cover; 321. heat-resistant sleeve; 322. inner ring; 323. outer ring; 4. air intake assembly; 41. air intake pipe; 42. positioning ring; 43. check valve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0024] Embodiment:

[0025] like Figure 1-6As shown, the utility model provides a high-temperature resistant flue gas automatic regulating valve, including a valve body 1, a power assembly 2 is arranged at the top of the valve body 1, the output end of the power assembly 2 is fixed to the valve plate assembly 3 through a rotating rod 21, an air intake assembly 4 is arranged at the bottom of the valve body 1, the valve plate assembly 3 includes a valve plate body 31 and an outer cover 32 arranged on the outer side walls at both ends of the valve plate body 31, a gas inlet hole 311 is opened at the bottom of the valve plate body 31, a rotating hole 312 is opened at the top of the valve plate body 31, a disc groove 315 is opened in the middle of the valve plate body 31, outer grooves 313 are opened inwardly on the outer side walls at both ends of the valve plate body 31, and an inner groove 314 is opened inwardly in the middle of each group of outer grooves 313, the outer cover 32 includes a heat-resistant sleeve 321, an outer ring 323 arranged on the outer side wall of the heat-resistant sleeve 321 and an inner ring 322 arranged on the inner side of the outer ring 323, and the air intake assembly 4 It includes an air intake pipe 41 and a positioning ring 42 arranged on the outside of the top end of the air intake pipe 41; through the outer cover 32 structure, the user can fix the two sets of outer covers 32 with the inner groove 314 and the outer groove 313 opened on the valve plate body 31, and in the outer cover 32, the inner ring 322 and the outer ring 323 are shelled in the inner groove 314 and the outer groove 313 for contact and fixation, and because the inner diameter of the outer ring 323 is the same as the inner diameter of the valve plate body 31, the outer ring 323 is wrapped on the outside of the valve plate body 31, and the physical properties of the heat-resistant sleeve 321 can be used to block the influence of external high-temperature media on the valve plate body 31, so as to achieve the effect of extending the use time. Compared with the existing coating structure, the structure of this sleeve has the effect of easy replacement, and the user can sleeve outer covers 32 with different functions as needed to meet the actual use needs on site.

[0026] In other embodiments, the rotating hole 312 and the gas inlet hole 311 are connected to each other, and the disc groove 315 is connected to the gas inlet hole 311, and the bottom end of the rotating rod 21 is inserted into the rotating hole 312 to realize power transmission; the maximum diameter of the disc groove 315 is three quarters of the diameter of the valve plate body 31; the size of the inner ring 322 is adapted to the size of the inner groove 314, and the inner diameter of the outer ring 323 is the same as the outer diameter of the outer groove 313; a rotating groove 316 is opened outward from the top of the gas inlet hole 311, and the size of the rotating groove 316 is adapted to the size of the positioning ring 42; a check valve 43 is sleeved on the outer side of the air inlet pipe 41; the valve air inlet duct 41 should be installed with a check valve 43 to prevent hot air from backflowing and burning the pipe or fan; by setting The novel valve plate assembly 3 structure is designed, and the user can replace the device in the existing smoke regulating valve, and fix its top end to the rotating rod 21, and the air inlet pipe 41 at the bottom is connected with the rotating groove 316 in the middle of the gas inlet hole 311 by a positioning ring 42. Firstly, it can be rotated conveniently, and secondly, it can reduce the leakage of the sealed medium. Therefore, when the heat exchange medium at the bottom flows into the valve plate body 31 from the air inlet pipe 41, it can fill three-quarters of the area of ​​the valve plate body 31 through the disc groove 315 structure opened in the valve plate body 31, so as to achieve the effect of cooling and heat exchange. After the medium inside the valve plate body 31 reaches the specified temperature, the medium can be extracted through the air inlet pipe 41 and replaced to achieve the effect of maintaining the appropriate temperature.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high temperature resistant flue gas automatic regulating valve, comprising a valve body (1), characterized in that: The top end of the valve body (1) is provided with a power assembly (2), the output end of the power assembly (2) is fixedly connected to the valve plate assembly (3) by a rotating rod (21), the bottom end of the valve body (1) is provided with an air intake assembly (4), the valve plate assembly (3) comprises a valve plate body (31) and a cover member (32) arranged on the outer side walls of both ends of the valve plate body (31), the bottom end of the valve plate body (31) is provided with a gas inlet hole (311), the top end of the valve plate body (31) is provided with a rotating hole (312), and the valve plate body (31) is provided with a rotating hole (313). ) is provided with a disc groove (315) in the middle, outer walls at both ends of the valve plate body (31) are provided with outer grooves (313) inwardly, and the middle of each group of the outer grooves (313) is provided with an inner groove (314) inwardly, the outer cover (32) includes a heat-resistant sleeve (321), an outer ring (323) arranged on the outer wall of the heat-resistant sleeve (321) and an inner ring (322) arranged on the inner side of the outer ring (323), and the air intake assembly (4) includes an air intake pipe (41) and a positioning ring (42) arranged on the outer side of the top end of the air intake pipe (41).

2. The high temperature resistant flue gas automatic regulating valve according to claim 1, characterized in that: The rotating hole (312) and the gas inlet hole (311) are connected to each other, and the disk groove (315) is kept connected to the gas inlet hole (311). The bottom end of the rotating rod (21) is inserted into the rotating hole (312) to realize power transmission.

3. The high temperature resistant flue gas automatic regulating valve according to claim 1, characterized in that: The maximum diameter of the disc groove (315) is three quarters of the diameter of the valve plate body (31).

4. The high temperature resistant flue gas automatic regulating valve according to claim 1, characterized in that: The size of the inner ring (322) is matched with the size of the inner groove (314), and the inner diameter of the outer ring (323) is the same as the outer diameter of the outer groove (313).

5. The high temperature resistant flue gas automatic regulating valve according to claim 1, characterized in that: A rotation groove (316) is provided at the top end of the gas inlet hole (311) toward the outside, and the size of the rotation groove (316) is matched with the size of the positioning ring (42).

6. The high temperature resistant flue gas automatic regulating valve according to claim 1, characterized in that: A check valve (43) is sleeved on the outer side of the air inlet pipe (41).

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