An exhaust sealing device for a regenerative thermal oxidizer (RTO).

Abstract

This utility model relates to the field of incinerator technology, specifically to an exhaust sealing device for a regenerative thermal oxidizer (RTO). It includes an exhaust connector, an exhaust pipe connected to the outer side of the exhaust connector, an inlet pipe connected to the bottom of the outer wall of the exhaust connector, and a sealing mechanism for sealing the inlet pipe at the top of the outer wall of the exhaust connector. In this utility model, the sealing mechanism ensures that the sealing cover and sealing ring gasket seal the inlet pipe while simultaneously sealing the position between the hydraulic telescopic rod and the through groove. This prevents flue gas from escaping through the gap between the hydraulic telescopic rod and the through groove when the sealing cover leaks, thereby further improving the sealing effect of the exhaust connector.

Description

Technical Field

[0001] This utility model relates to the field of incinerator technology, specifically to an exhaust sealing device for a regenerative thermal oxidizer (RTO). Background Technology

[0002] Regenerative thermal oxidizers (RTOs) are a new type of environmentally friendly equipment that simultaneously recovers organic waste gas and heat energy. They utilize the heat generated during combustion to preheat air and flue gas, allowing them to mix thoroughly in the high-temperature chamber to reach the reaction temperature. The RTO switching valve is indispensable in the use of RTOs. As a core component of the RTO waste gas regenerative oxidation treatment system, the sealing performance of the RTO valve plays a crucial role in ensuring the stable and compliant operation of the entire system.

[0003] Chinese Patent Publication No. CN217653867U discloses an exhaust sealing device for a regenerative thermal oxidizer (RTO). This patented technology enables the valve plate to automatically adjust itself and achieves a reliable seal with a soft elastic sealing ring, effectively preventing untreated exhaust gas from being discharged and ensuring that the exhaust gas emissions meet the standards. It also features a simple structure and convenient installation.

[0004] However, as can be seen from the specification and drawings of the aforementioned patent technology, in specific implementation, the patent technology only uses a valve plate to seal the exhaust port. However, the valve plate may wear out during use, which can easily lead to air leakage. Since the patent only has one sealing element, the leakage is likely to occur from the cylinder extension rod and the connection end of the flue joint, so there are still some shortcomings.

[0005] In conclusion, it is necessary to invent an exhaust sealing device for a regenerative thermal oxidizer (RTO). Utility Model Content

[0006] Therefore, this utility model provides an exhaust sealing device for a regenerative thermal oxidizer (RTO) to solve the problem that the valve plate may wear during use, which can easily lead to air leakage. However, this patent only has one sealing element, the valve plate, and once air leakage occurs, it is easy for leakage to occur from the cylinder telescopic rod and the connection end of the flue joint.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an exhaust sealing device for a regenerative thermal oxidizer (RTO), comprising an exhaust connector, an exhaust pipe connected to the outer wall side end of the exhaust connector, an air inlet pipe connected to the bottom end of the outer wall of the exhaust connector, and a sealing mechanism for sealing the air inlet pipe provided at the top end of the outer wall of the exhaust connector.

[0008] Preferably, the sealing mechanism includes a hydraulic cylinder, a connecting block is fixed to the outer wall side of the hydraulic cylinder, and a support frame is fixed to the top of the outer wall of the exhaust connector and to one side of the connecting block.

[0009] Preferably, the outer wall side of the connecting block is fixed to the outer wall side of the support frame by bolts, and a hydraulic telescopic rod is installed at the bottom output end of the hydraulic cylinder.

[0010] Preferably, the bottom end of the hydraulic telescopic rod passes through the top of the inner wall of the exhaust connector and is fixed with a sealing cover. The sealing cover is located above the top of the outer wall of the air intake pipe, and a sealing ring gasket for sealing the top of the air intake pipe is installed on the top of the inner wall of the sealing cover.

[0011] Preferably, the top of the outer wall of the exhaust connector is provided with an avoidance groove for the hydraulic telescopic rod to slide. The sealing mechanism also includes a detachable sealing ring. The detachable sealing ring has a two-section structure. Both sections of the detachable sealing ring are sleeved on both sides of the outer wall of the hydraulic telescopic rod. The opposite side of the detachable sealing ring is provided with a staggered joint for sealing and docking.

[0012] Preferably, the bottom of the outer wall of each detachable sealing ring is fixed with a first annular connecting plate for connection, and a bottom annular sealing cylinder is connected below the bottom of the outer wall of each detachable sealing ring. The top of the outer wall of the bottom annular sealing cylinder is fixed to the outer wall of the first annular connecting plate by a second annular connecting plate and bolts.

[0013] Preferably, the outer wall of the hydraulic telescopic rod is slidably connected to the inner wall of the bottom annular sealing cylinder, the outer wall of the bottom annular sealing cylinder is connected to the inner wall of the through groove, and both the detachable sealing ring and the inner wall side of the bottom annular sealing cylinder are fixed with port sealing rings for sealing.

[0014] Preferably, an upper sealing plate is provided above the top of the outer wall of the detachable sealing ring. The upper sealing plate is also a two-section structure. The upper sealing plate is sleeved on the top of the outer wall of the detachable sealing ring. A connecting plate is fixed to the top of the outer wall of each of the two upper sealing plates. The connecting plates are fixedly connected by bolts.

[0015] The beneficial effects of this utility model are:

[0016] In this invention, the sealing mechanism ensures that the sealing cover and sealing ring gasket seal the air inlet pipe, while also sealing the position between the hydraulic telescopic rod and the through groove. This prevents smoke from escaping through the gap between the hydraulic telescopic rod and the through groove when the sealing cover leaks, thereby further improving the sealing effect of the exhaust connector and making it more convenient for personnel to use. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the external structure of the present invention viewed from the front.

[0018] Figure 2 This is a partial cross-sectional view of the present invention from the front view.

[0019] Figure 3 This is a three-dimensional structural diagram of the sealing mechanism in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the upper sealing cover of this utility model viewed from below.

[0021] In the diagram: 100, exhaust connector; 110, support frame; 120, exhaust pipe; 130, intake pipe; 200, hydraulic cylinder; 210, connecting block; 220, hydraulic telescopic rod; 230, sealing cover; 231, sealing gasket; 300, detachable sealing ring; 310, first annular connecting plate; 320, staggered joint; 330, port sealing ring; 340, bottom annular sealing cylinder; 341, second annular connecting plate; 350, upper sealing plate; 351, connecting plate. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] See attached document Figures 1-4 The present invention provides an exhaust sealing device for a regenerative thermal oxidizer (RTO), including an exhaust connector 100, an exhaust pipe 120 connected to the outer wall side end of the exhaust connector 100, and an air inlet pipe 130 connected to the outer wall bottom end of the exhaust connector 100. The air inlet pipe 130 can be connected to the exhaust port of the RTO through the exhaust pipe.

[0024] The exhaust connector 100 has a sealing mechanism at the top of its outer wall to seal the intake pipe 130. The sealing mechanism includes a hydraulic cylinder 200. A connecting block 210 is fixed to the side of the outer wall of the hydraulic cylinder 200. A support frame 110 is fixed to the top of the outer wall of the exhaust connector 100 and to one side of the connecting block 210. The side of the outer wall of the connecting block 210 is fixed to the side of the outer wall of the support frame 110 by bolts. A hydraulic telescopic rod 220 is installed at the bottom output end of the hydraulic cylinder 200. The hydraulic cylinder 200 can control the extension and retraction of the hydraulic telescopic rod 220. The bottom end of the hydraulic telescopic rod 220 passes through the top of the inner wall of the exhaust connector 100 and is fixed with a sealing cover 230. The sealing cover 230 is located above the top of the outer wall of the intake pipe 130. A sealing ring gasket 231 is installed on the top of the inner wall of the sealing cover 230 to seal the top of the intake pipe 130. The sealing cover 230 and the sealing ring gasket 231 are provided to seal the top of the intake pipe 130 when needed.

[0025] The top of the outer wall of the exhaust connector 100 has an clearance groove for the hydraulic telescopic rod 220 to slide. The sealing mechanism also includes a detachable sealing ring 300, which has a two-section structure. Both sections of the detachable sealing ring 300 are fitted onto both sides of the outer wall of the hydraulic telescopic rod 220. The two-section structure of the detachable sealing ring 300 is to facilitate subsequent disassembly of the sealing mechanism. Each side of the detachable sealing ring 300 has a staggered joint 320 for sealing and mating. The bottom of the outer wall of each detachable sealing ring 300 is fixed with a first annular connecting plate 310 for connection. The bottom of the bottom of the outer wall of each detachable sealing ring 300 is connected to a bottom annular sealing cylinder 340. The top of the outer wall of the bottom annular sealing cylinder 340 is fixed to the outer wall of the first annular connecting plate 310 by a second annular connecting plate 341 and bolts. The bottom annular sealing cylinder 340 can be inserted into the through groove at the top of the exhaust connector 100 to seal the through groove. The outer wall of the hydraulic telescopic rod 220 and the bottom annular sealing cylinder 340 are connected together. The inner wall is slidably connected, and the outer wall of the bottom annular sealing cylinder 340 is connected to the inner wall of the through groove. Both the detachable sealing ring 300 and the inner wall side of the bottom annular sealing cylinder 340 are fixed with port sealing rings 330 for sealing. The port sealing rings 330 can be made of silicone, which can improve the sealing performance of the connection with the outer wall of the hydraulic telescopic rod 220. The inner walls of the upper sealing plate 350, the detachable sealing ring 300, and the bottom annular sealing cylinder 340 can be coated with a layer of polytetrafluoroethylene to reduce the impact on the hydraulic system. The friction between the outer walls of the telescopic rod 220, and the upper sealing plate 350 is provided above the top of the outer wall of the detachable sealing ring 300. The upper sealing plate 350 is also a two-section structure. The upper sealing plate 350 is sleeved on the top of the outer wall of the detachable sealing ring 300. The top of the outer wall of the two sections of the upper sealing plate 350 is fixed with a connecting plate 351 for connection. The connecting plates 351 are fixedly connected by bolts. The upper sealing plate 350 is mainly used to sleeve and fix the upper end of the detachable sealing ring 300.

[0026] The usage process of this utility model is as follows: Those skilled in the art can first assemble the device according to the above description, then connect all electrical equipment to an external power supply, and control the operation of the device through an external controller. The control programs of all electrical equipment are edited by the production personnel in advance before production. This utility model does not make any technical improvements here, but only assumes that it can normally meet the needs of personnel.

[0027] First, the operator needs to place the bottom annular sealing cylinder 340 onto the outer wall of the hydraulic telescopic rod 220. Then, remove the removable sealing ring 300 and align the two sections of the removable sealing ring 300 onto the outer wall of the hydraulic telescopic rod 220. Next, align the first annular connecting plate 310 with the second annular connecting plate 341. After this, the operator can remove the bolts to connect and fix the first annular connecting plate 310 and the second annular connecting plate 341. Then, the operator can slide the removable sealing ring 300 and the bottom annular sealing cylinder 340 downwards, allowing the bottom annular sealing cylinder 340 to be inserted into the through groove to connect the hydraulic telescopic rod 220 with the through groove. The gap between them is sealed, and a layer of sealant can be applied to the outer wall of the bottom annular sealing cylinder 340 to improve the sealing effect. Then, the personnel can fix the bottom end of the first annular connecting plate 310 to the top of the outer wall of the smoke exhaust connector 100 by removing some bolts. Finally, the upper sealing plate 350 is removed and connected to the outer wall of the hydraulic telescopic rod 220 and sleeved on the top of the detachable sealing ring 300. Then, the connecting plates 351 are fixed together with bolts so that the upper sealing plate 350 can seal the upper end of the detachable sealing ring 300 and also fix the upper end of the detachable sealing ring 300.

[0028] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An exhaust sealing device for a regenerative thermal oxidizer (RTO), characterized in that: It includes a smoke exhaust connector (100), the outer wall side end of which is connected to an exhaust pipe (120), the bottom end of which is connected to an air inlet pipe (130), and a sealing mechanism for sealing the air inlet pipe (130) is provided at the top of the outer wall of the smoke exhaust connector (100).

2. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 1, characterized in that: The sealing mechanism includes a hydraulic cylinder (200), and a connecting block (210) is fixed to the outer wall side end of the hydraulic cylinder (200). A support frame (110) is fixed to the top of the outer wall of the exhaust connector (100) and to one side of the connecting block (210).

3. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 2, characterized in that: The outer wall side of the connecting block (210) is fixed to the outer wall side of the support frame (110) by bolts, and a hydraulic telescopic rod (220) is installed at the bottom output end of the hydraulic cylinder (200).

4. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 3, characterized in that: The bottom end of the hydraulic telescopic rod (220) passes through the top of the inner wall of the exhaust connector (100) and is fixed with a sealing cover (230). The sealing cover (230) is located above the top of the outer wall of the air intake pipe (130). A sealing ring gasket (231) for sealing the top of the air intake pipe (130) is installed on the top of the inner wall of the sealing cover (230).

5. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 3, characterized in that: The top of the outer wall of the exhaust connector (100) is provided with a clearance groove for the hydraulic telescopic rod (220) to slide. The sealing mechanism also includes a detachable sealing ring (300). The detachable sealing ring (300) has a two-section structure. Both sections of the detachable sealing ring (300) are sleeved on both sides of the outer wall of the hydraulic telescopic rod (220). The opposite side of the detachable sealing ring (300) is provided with a staggered joint (320) for sealing and docking.

6. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 5, characterized in that: The bottom of the outer wall of each of the detachable sealing rings (300) is fixed with a first annular connecting plate (310) for connection. A bottom annular sealing cylinder (340) is connected below the bottom of the outer wall of each of the detachable sealing rings (300). The top of the outer wall of the bottom annular sealing cylinder (340) is fixed to the outer wall of the first annular connecting plate (310) by a second annular connecting plate (341) and bolts.

7. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 6, characterized in that: The outer wall of the hydraulic telescopic rod (220) is slidably connected to the inner wall of the bottom annular sealing cylinder (340), the outer wall of the bottom annular sealing cylinder (340) is connected to the inner wall of the through groove, and the detachable sealing ring (300) and the inner wall side of the bottom annular sealing cylinder (340) are both fixed with a port sealing ring (330) for sealing.

8. The exhaust sealing device for a regenerative thermal oxidizer (RTO) according to claim 7, characterized in that: Each of the outer walls of the removable sealing ring (300) is provided with an upper sealing plate (350). The upper sealing plate (350) is also a two-section structure. The upper sealing plate (350) is sleeved on the top of the outer wall of the removable sealing ring (300). The top of the outer walls of the two sections of the upper sealing plate (350) are fixed with connecting plates (351). The connecting plates (351) are fixedly connected to each other by bolts.

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