A one-piece switching valve for RTO

Abstract

The present invention relates to the field of valve technology, and specifically to a one-piece switching valve applied to RTO, comprising a valve body, an air inlet and an air outlet are installed on the surface of the valve body, two groups of actuator brackets are provided on the top surface of the valve body, an actuator is fixed on the top surface of the actuator bracket, a sealing assembly is provided on the bottom end of the actuator, an intermediate air outlet is opened on the top surface of the valve body, a partition plate is fixed on the inner wall of the valve body, a purge port and an inspection port are installed on the side plate of the valve body, and a filter assembly is provided on the surface of the air inlet; the beneficial effects are: the one-piece switching valve applied to RTO proposed by the present invention can realize the switching of the air inlet direction by using a set of one-piece valves, and the structure is compact; and a filter assembly is installed inside the valve body to realize the pretreatment of the exhaust gas entering the air inlet, so as to avoid the entry of hard particles mixed in the exhaust gas and wear of the valve body.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a one-piece switching valve used in RTO. Background Art

[0002] The regenerative thermal incinerator is also called: regenerative thermal oxidizer, the English name is "Regenerative Thermal Oxidizer", abbreviated as "RTO", its principle is to heat the organic waste gas to above 760 degrees Celsius to oxidize and decompose the VOC in the waste gas into carbon dioxide and water.

[0003] In the prior art, a regenerative thermal incinerator uses a valve to control the inlet and outlet of exhaust gas. The valve structure used in a conventional regenerative thermal incinerator is large in size and lacks a filtering mechanism at the air inlet, which poses a risk of hard tiny particles mixed in the exhaust gas scratching the valve body itself. Summary of the invention

[0004] The object of the present invention is to provide a one-piece switching valve applied to RTO to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a one-piece switching valve applied to RTO, comprising a valve body, an air inlet and an air outlet are installed on the surface of the valve body, two sets of actuator brackets are provided on the top surface of the valve body, an actuator is fixed on the top surface of the actuator bracket, a sealing assembly is provided on the bottom end of the actuator, an intermediate air outlet is opened on the top surface of the valve body, a partition plate is fixed on the inner wall of the valve body, a purge port and an inspection port are installed on the side plate of the valve body, and a filter assembly is provided on the surface of the air inlet.

[0006] Preferably, the sealing assembly includes a sealing gasket, a valve plate and a connecting rod, the sealing gasket is fixed to the inner wall of the valve body, the valve plate is fixed to the bottom end of the connecting rod, the connecting rod passes through the top plate of the valve body, and the top end of the connecting rod is fixed to the piston rod of the actuator.

[0007] Preferably, the filter assembly includes a delivery port, a limiting groove, a rubber gasket, a mounting frame and a filter plate, the delivery port is opened on the top surface of the air inlet, the limiting groove is opened in the groove of the air inlet, the delivery port and the limiting groove are connected, the rubber gasket has an annular plate structure, and two groups of rubber gaskets are provided, the two groups of rubber gaskets are symmetrically distributed about the limiting groove, and the rubber gaskets are fixed on the surface of the limiting groove.

[0008] Preferably, the mounting frame is an annular plate structure. After the mounting frame is inserted into the limiting groove, the rubber gasket is clamped between the limiting groove and the mounting frame, and the filter plate is fixed in the inner ring opening of the mounting frame. After the mounting frame is inserted into the limiting groove, the top of the mounting frame is limited by the blocking assembly.

[0009] Preferably, the blocking component includes a limiting shaft, a perforation, a baffle, a rubber strip, and a picking groove. The limiting shaft has a "T"-shaped cylindrical structure. The limiting shaft penetrates through the perforation, and the perforation is opened on the surface of the baffle. The limiting shaft is fixed on the surface of the air inlet. There are two groups of limiting shafts, and the two groups of limiting shafts are symmetrically distributed with respect to the limiting groove. The rubber strip is fixed on the surface of the air inlet. There are two groups of rubber strips, and the two groups of rubber strips are symmetrically distributed with respect to the limiting shaft. The picking groove is opened on the surface of the baffle, and a cleaning component is provided on the surface of the limiting groove.

[0010] Preferably, the cleaning component includes side grooves and a cleaning plate. The side grooves are square grooves. There are two groups of side grooves, and the two groups of side grooves are symmetrically distributed with respect to the limiting groove. The cleaning plate is inserted into the side grooves. The surface of the cleaning plate is provided with bristles. The bristles of the two cleaning plates all face the limiting groove. The top surface of the cleaning plate is provided with screws, and the screws penetrate through the cleaning plate and are screwed on the surface of the side grooves. An elastic supporting component is provided at the bottom end of the installation frame.

[0011] Preferably, the elastic supporting component includes a rubber pad, an embedding groove, an elastic frame, and a rubber column. The rubber pad has an annular plate structure. The rubber pad is fixed on the bottom surface of the installation frame. The embedding groove is a square groove. There are multiple embedding grooves, and the multiple embedding grooves are arranged and distributed along the long side of the bottom surface of the installation frame.

[0012] Preferably, the elastic frame is a "U"-shaped sheet. The two relatively distributed side plates of the elastic frame are both fixed on the surface of the embedding groove. The rubber column is fixed between the elastic frame and the embedding groove, and the rubber column is located between the two relatively distributed side plates of the elastic frame.

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

[0014] The integrated switching valve applied to the RTO proposed by the present invention can realize the switching of the air inlet direction by using a set of integrated valves, and the structure is compact; and a filtering component is installed inside the valve body to pre-treat the waste gas entering the air inlet, avoiding the hard particulate matter in the waste gas from entering and wearing the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a front view of the structure of the present invention;

[0017] Figure 3 is a schematic diagram of the air inlet structure of the present invention Figure 1 ;

[0018] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0019] Figure 5 is a schematic semi-sectional view of the structure of the present invention;

[0020] Figure 6 For Figure 5 The enlarged schematic diagram of the structure at position B in

[0021] Figure 7 The schematic diagram of the air inlet structure of the present invention Figure 2 ;

[0022] Figure 8 For Figure 7 The enlarged schematic diagram of the structure at position C in

[0023] Figure 9 The schematic diagram of the installation frame structure of the present invention

[0024] Figure 10 For Figure 9 The enlarged schematic diagram of the structure at position D in

[0025] Figure 11 The schematic diagram of the baffle structure of the present invention

[0026] In the figure: valve body 1, air inlet 2, air outlet 3, actuator bracket 4, partition plate 5, purge port 6, inspection port 7, intermediate air outlet 8, actuator 9, gasket 10, valve plate 11, connecting rod 12, feeding port 13, limiting groove 14, rubber gasket ring 15, installation frame 16, filter plate 17, limiting shaft 18, perforation 19, baffle 20, rubber baffle strip 21, picking groove 22, side groove 23, cleaning plate 24, rubber pad 25, embedding groove 26, elastic frame 27, rubber column 28. Detailed implementation manners

[0027] In order to clearly and completely describe the purpose, technical solution of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] Please refer to Figures 1 to 3The present invention provides a technical solution: a one-piece switching valve applied to RTO, comprising a valve body 1, an air inlet 2 and an air outlet 3 are installed on the surface of the valve body 1, two sets of actuator brackets 4 are arranged on the top surface of the valve body 1, an actuator 9 is fixed on the top surface of the actuator bracket 4, a sealing assembly is arranged at the bottom end of the actuator 9, the sealing assembly comprises a sealing gasket 10, a valve plate 11 and a connecting rod 12, the sealing gasket 10 is fixed on the inner wall of the valve body 1, the valve plate 11 is fixed on the bottom end of the connecting rod 12, and the connecting rod 12 penetrates The top plate of the valve body 1 and the top end of the connecting rod 12 are fixed on the piston rod of the actuator 9. An intermediate air port 8 is provided on the top surface of the valve body 1. A partition plate 5 is fixed on the inner wall of the valve body 1. A purge port 6 and an inspection port 7 are installed on the side plate of the valve body 1. A filter assembly is provided on the surface of the air inlet 2. A set of one-piece valves can be used to switch the air inlet direction, and the structure is compact. A filter assembly is installed inside the valve body 1 to pre-treat the exhaust gas entering the air inlet 2 to prevent hard particles mixed in the exhaust gas from entering and wearing the valve body.

[0030] Embodiment 2

[0031] See attached Figures 5 to 8 On the basis of Example 1, in order to realize the installation of the filter assembly, the filter assembly includes a delivery port 13, a limiting groove 14, a rubber gasket 15, a mounting frame 16 and a filter plate 17. The delivery port 13 is opened on the top surface of the air inlet 2, the limiting groove 14 is opened in the groove of the air inlet 2, the delivery port 13 and the limiting groove 14 are connected, the rubber gasket 15 is an annular plate structure, the rubber gasket 15 is provided with two groups, the two groups of rubber gaskets 15 are symmetrically distributed about the limiting groove 14, and the rubber gasket 15 is fixed on the surface of the limiting groove 14, the mounting frame 16 is an annular plate structure, after the mounting frame 16 is inserted into the limiting groove 14, the rubber gasket 15 is clamped between the limiting groove 14 and the mounting frame 16, the filter plate 17 is fixed in the inner ring mouth of the mounting frame 16, and the mounting frame 16 is inserted into the limiting groove 14.

[0032] Embodiment 3

[0033] See attached Figure 4 , Figures 9 to 11, on the basis of the second embodiment, in order to realize the post-installation limit of the installation frame 16, the top of the installation frame 16 is limited by a blocking component. The blocking component includes a limit shaft 18, a through hole 19, a blocking piece 20, a rubber blocking strip 21 and a picking groove 22. The limit shaft 18 has a "T"-shaped column structure. The limit shaft 18 passes through the through hole 19. The through hole 19 is opened on the surface of the blocking piece 20. The limit shaft 18 is fixed on the surface of the air inlet 2. There are two groups of limit shafts 18, and the two groups of limit shafts 18 are symmetrically distributed with respect to the limit groove 14. The rubber blocking strip 21 is fixed on the surface of the air inlet 2. There are two groups of rubber blocking strips 21, and the two groups of rubber blocking strips 21 are symmetrically distributed with respect to the limit shaft 18. The picking groove 22 is opened on the surface of the blocking piece 20. A cleaning component is provided on the surface of the limit groove 14; the cleaning component includes a side groove 23 and a cleaning plate 24. The side groove 23 is a square groove. There are two groups of side grooves 23, and the two groups of side grooves 23 are symmetrically distributed with respect to the limit groove 14. The cleaning plate 24 is inserted into the side groove 23. The surface of the cleaning plate 24 is provided with bristles. The bristles of the two cleaning plates 24 all face the limit groove 14. The top surface of the cleaning plate 24 is provided with screws. The screws pass through the cleaning plate 24 and are screwed on the surface of the side groove 23. The bottom end of the installation frame 16 is provided with an elastic supporting component; the elastic supporting component includes a rubber pad 25, an embedding groove 26, an elastic frame 27 and a rubber column 28. The rubber pad 25 has an annular plate structure. The rubber pad 25 is fixed on the bottom surface of the installation frame 16. The embedding groove 26 is a square groove. There are multiple embedding grooves 26, and the multiple embedding grooves 26 are arranged and distributed along the long side of the bottom surface of the installation frame 16; the elastic frame 27 has a "U"-shaped sheet. The two relatively distributed side plates of the elastic frame 27 are both fixed on the surface of the embedding groove 26. The rubber column 28 is fixed between the elastic frame 27 and the embedding groove 26, and the rubber column 28 is located between the two relatively distributed side plates of the elastic frame 27.

[0034] During actual use, refer to the attached Figure 1 and Figure 2, the actuator 9 on the left side is actuated, the valve plate 11 on the left side rises, the actuator 9 on the right side is actuated, the valve plate 11 on the right side drops and contacts the sealing gasket 10, at this time, the exhaust gas can enter from the air inlet 2, and the middle air outlet 8 enters the RTO, realizing the RTO air intake; the actuator 9 on the left side is actuated, the valve plate 11 on the left side drops to contact the sealing gasket 10, and the air intake of the purge port 6 can realize the purge process of the RTO heat storage chamber; the actuator 9 on the right side is actuated, the valve plate 11 on the right side rises, and the exhaust gas can enter from the middle air outlet 8 and be discharged from the air outlet 3; after the two groups of actuators 9 act in turn, the switching of the air intake, purge and air outlet of the RTO heat storage chamber is realized; the installation frame 1 When the filter 17 is installed in the limiting groove 14, the blocking piece 20 blocks the top of the installation frame 16, and the elastic frame 27 and the rubber column 28 are squeezed at this time. The elastic frame 27 and the rubber column 28 have a rebound force to support the installation frame 16, so that the installation frame 16 is tightly pressed down by the blocking piece 20. When the filter plate 17 needs to be cleaned, the blocking piece 20 is moved around the limiting axis 18 by fingers in the picking groove 22 until the blocking piece 20 no longer blocks the installation frame 16. At this time, the elastic frame 27 and the rubber column 28 rebound to pop the installation frame 16 out of the delivery port 13 for a distance, and the installation frame 16 can be pulled out of the delivery port 13. In this process, the cleaning plate 24 cleans the dust on the surface of the filter plate 17.

[0035] 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 one-piece switching valve for RTO, comprising a valve body (1), an air inlet (2) and an air outlet (3) being mounted on the surface of the valve body (1), characterized in that: On the top surface of the valve body (1), there are two groups of actuator brackets (4). An actuator (9) is fixed on the top surface of the actuator bracket (4). A sealing component is provided at the bottom end of the actuator (9). An intermediate air vent (8) is formed on the top surface of the valve body (1). A partition plate (5) is fixed to the inner wall of the valve body (1). A purge port (6) and an inspection port (7) are installed on the side plate of the valve body (1). And a filtering component is provided on the surface of the air inlet (2); The filtering component includes a feeding port (13), a limiting groove (14), a rubber gasket ring (15), a mounting frame (16), and a filter plate (17). The feeding port (13) is formed on the top surface of the air inlet (2). The limiting groove (14) is formed in the groove of the air inlet (2). The feeding port (13) communicates with the limiting groove (14). The rubber gasket ring (15) is in the shape of an annular plate structure. There are two groups of rubber gasket rings (15). The two groups of rubber gasket rings (15) are symmetrically distributed with respect to the limiting groove (14). And the rubber gasket ring (15) is fixed on the surface of the limiting groove (14); The mounting frame (16) is in the shape of an annular plate structure. After the mounting frame (16) is inserted into the limiting groove (14), the rubber gasket ring (15) is clamped between the limiting groove (14) and the mounting frame (16). The filter plate (17) is fixed in the inner ring of the mounting frame (16). After the mounting frame (16) is inserted into the limiting groove (14), the top of the mounting frame (16) is limited by a blocking component; The blocking component includes a limiting shaft (18), a through hole (19), a blocking piece (20), a rubber blocking strip (21), and a picking groove (22). The limiting shaft (18) is in the shape of a "T" - shaped cylinder structure. The limiting shaft (18) passes through the through hole (19). The through hole (19) is formed on the surface of the blocking piece (20). The limiting shaft (18) is fixed on the surface of the air inlet (2). There are two groups of limiting shafts (18). The two groups of limiting shafts (18) are symmetrically distributed with respect to the limiting groove (14). The rubber blocking strip (21) is fixed on the surface of the air inlet (2). There are two groups of rubber blocking strips (21). The two groups of rubber blocking strips (21) are symmetrically distributed with respect to the limiting shaft (18). The picking groove (22) is formed on the surface of the blocking piece (20). A cleaning component is provided on the surface of the limiting groove (14).

2. The one-piece switching valve used for RTO according to claim 1, characterized in that: The sealing component includes a sealing gasket (10), a valve plate (11), and a connecting rod (12). The sealing gasket (10) is fixed to the inner wall of the valve body (1). The valve plate (11) is fixed to the bottom end of the connecting rod (12). The connecting rod (12) passes through the top plate of the valve body (1). The top end of the connecting rod (12) is fixed to the piston rod of the actuator (9).

3. The one-piece switching valve used for RTO according to claim 1, characterized in that: The cleaning component includes side grooves (23) and a cleaning plate (24). The side grooves (23) are in the shape of square grooves. There are two groups of side grooves (23). The two groups of side grooves (23) are symmetrically distributed with respect to the limiting groove (14). The cleaning plate (24) is inserted into the side grooves (23). Brush hairs are provided on the surface of the cleaning plate (24). The brush hairs of the two groups of cleaning plates (24) all face the limiting groove (14). Screws are provided on the top surface of the cleaning plate (24). After the screws pass through the cleaning plate (24), they are screwed to the surface of the side grooves (23). An elastic supporting component is provided at the bottom end of the mounting frame (16).

4. The one-piece switching valve used for RTO according to claim 3, characterized in that: The elastic jacking component includes a rubber pad (25), an embedding groove (26), an elastic frame (27) and a rubber column (28). The rubber pad (25) has an annular plate structure and is fixed to the bottom surface of the mounting frame (16). The embedding groove (26) is a square groove, and there are multiple embedding grooves (26), which are arranged and distributed along the long side of the bottom surface of the mounting frame (16).

5. The one-piece switching valve used for RTO according to claim 4, characterized in that: The elastic frame (27) is in a "U"-shaped sheet, and the two relatively distributed side plates of the elastic frame (27) are both fixed to the surface of the embedding groove (26). The rubber column (28) is fixed between the elastic frame (27) and the embedding groove (26), and the rubber column (28) is located between the two relatively distributed side plates of the elastic frame (27).

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