A flat push valve overhauling and connecting device and a regenerative thermal incinerator
The modular design and double-sided bolt sealing structure of the push valve inspection and connection device solve the problem of difficult installation and maintenance of RTO push valves, realize efficient and low-cost inspection and maintenance, and protect the integrity of the insulation layer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHUYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
AI Technical Summary
The existing RTO push valve is prone to loosening when fixed to the lower chamber, resulting in poor sealing, difficulty in installation and maintenance, and easy damage to the insulation layer during overall disassembly and maintenance, increasing costs and downtime.
The modular design of the push valve module, lower chamber module, and connecting module forms a double-sided bolt seal structure through bolt assemblies. Multiple inspection ports are provided for easy maintenance, and a split insulation module is used to avoid disassembling the insulation layer.
It improves connection sealing, reduces installation and maintenance costs, simplifies maintenance procedures, reduces equipment downtime, and protects the integrity of the insulation layer.
Smart Images

Figure CN224340133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal incinerator technology, and in particular to a push valve maintenance and connection device and a regenerative thermal incinerator. Background Technology
[0002] This invention relates to the field of regenerative thermal oxidizers (RTOs), and more specifically to an RTO push valve that is easy to install and maintain.
[0003] The RTO push valve is a key component in regenerative thermal oxidizer (RTO) equipment, used to control the flow of exhaust gas and purified gas. The ease of its installation and maintenance is crucial for the efficient operation and long-term stable use of the RTO equipment.
[0004] Currently, the RTO push valve and lower chamber are generally fixedly connected, which involves a large amount of welding work. The connection is prone to loosening due to the long-term reciprocating motion of the push valve, affecting the seal. Internal maintenance of the push valve requires complete disassembly, which is time-consuming and labor-intensive, making maintenance difficult. The integral structure means that local wear requires replacement of the entire component, which is costly and may also damage other components, including the insulation layer, during disassembly, further increasing maintenance costs and equipment downtime. In view of the above defects, this application is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a push valve maintenance and connection device and a regenerative thermal incinerator. By improving the fixing method and installation form of the push valve and the lower chamber, the existing push valve installation and maintenance difficulties are solved, and the installation and maintenance costs are reduced.
[0006] To address the aforementioned problems, this utility model provides a push valve maintenance and connection device, comprising a push valve module, a lower chamber module, a connection module, and an insulation module. Two sets of push valve modules are provided, respectively located on both sides of the lower chamber module. Two sets of connection modules are correspondingly provided, each with a connecting flange at both ends. The two sets of connecting flanges are connected to the push valve module and the lower chamber module respectively via bolt assemblies, forming a double-sided bolt sealing structure, replacing the original single-sided fixing method and enhancing the sealing performance at the connection. A first inspection port is provided on the push valve module for easy inspection of its internal structure. A second inspection port is provided on the lower chamber module, covering the area of critical internal components for further ease of maintenance. Several sets of insulation modules are provided, respectively covering the outer sides of the push valve module, lower chamber module, and connection module. The use of separate insulation modules eliminates the need to damage the insulation layer during maintenance and disassembly.
[0007] According to one embodiment of the present invention, the first inspection port is provided with high-temperature resistant transparent glass and sealing strip to form an observation window, which can be used to observe the internal working status.
[0008] According to one embodiment of the present invention, the first inspection port is located on the top of the push valve module, and a third inspection port is located on the front side of the push valve module. The multiple inspection ports further facilitate maintenance.
[0009] According to one embodiment of the present invention, the insulation module is not provided at the first, second, and third inspection ports, so the insulation layer does not need to be disassembled before maintenance, thus improving maintenance efficiency.
[0010] According to one embodiment of the present invention, the first inspection port, the second inspection port and the third inspection port are all detachable. Preferably, a cover plate is fixed by quick-release bolts, and alternatively, a rotary connection is formed by a pin, hinge or the like.
[0011] According to one embodiment of the present invention, the push valve maintenance and connection device further includes the sealing baffle. The sealing baffle can be installed at the connection position between the lower chamber module and the connection module. It is not installed when the equipment is working normally, but is installed for sealing treatment during maintenance to achieve a sealing effect and prevent gas leakage.
[0012] According to one embodiment of the present invention, the bolt assembly includes an elastic washer, and the bolt and the elastic washer cooperate to ensure the sealing effect at the connection.
[0013] A regenerative thermal incinerator includes the aforementioned push valve maintenance and connection device.
[0014] The beneficial effects of this utility model are as follows: by setting up a push valve module, a lower chamber module, and a connecting module, the push valve module and the lower chamber module are modularly assembled and connected through the connecting module, solving the problem of large welding workload caused by traditional welding connections. During inspection, maintenance, and replacement, there is no need for overall disassembly, saving time and effort, reducing installation and maintenance costs, and providing multiple inspection ports for further convenience of maintenance; the insulation module adopts a split design, which will not cause excessive damage to the insulation layer during maintenance; the connecting module is connected to the push valve module and the lower chamber module by bolts to form a double-sided bolt connection structure to ensure sealing performance. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 A schematic diagram of the overall structure of a push valve maintenance and connection device;
[0017] Figure 2 This is a structural diagram of the connection module;
[0018] Figure 3 This is a schematic diagram of the sealing baffle.
[0019] Figure 4 This is a structural schematic diagram of the lower chamber module;
[0020] Figure 5 This is a schematic diagram of a regenerative thermal incinerator. Detailed Implementation
[0021] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.
[0022] Example 1:
[0023] A push valve maintenance and connection device, such as Figure 1 It includes a push valve module 2, a lower chamber module 6, a connection module 7, and an insulation module 5.
[0024] Both the push valve module 2 and the lower chamber module 6 adopt a modular design, such as... Figure 4 The lower chamber module 6 is assembled into a push valve maintenance and connection device, which eliminates the need for complete disassembly during maintenance, thus improving maintenance efficiency.
[0025] like Figure 1 Two sets of push valve modules 2 are set, one on the left and one on the right side of the lower chamber module 6, respectively, and two sets of connecting modules 7 are set accordingly, such as... Figure 2 The connecting module 7 has connecting flanges 71 at both ends and a cylindrical structure with an internal channel in the middle. Preferably, several bolt holes are arranged on the connecting flanges 71 in the circumferential direction. The two sets of connecting flanges 71 are connected to the interface of the push valve module 2 and the lower chamber module 6 respectively through several bolt assemblies 9, forming a double-sided bolt sealing structure, replacing the original single-sided fixing method, and enhancing the sealing performance of the connection. The bolt assembly 9 includes bolts, nuts and elastic washers. The bolts and elastic washers cooperate to further ensure the sealing effect of the connection.
[0026] Optionally, a sealing gasket can be provided at the connecting flange 71 to further improve the sealing effect.
[0027] By using the connection module 7 and the connection structure design of double-sided bolts, the problem of large welding workload caused by the traditional welding connection between the push valve module 2 and the lower chamber module 6 is solved.
[0028] The top of the push valve module 2 is provided with a first inspection port 11, which facilitates the inspection of the internal structure of the push valve module 2. The first inspection port 11 is preferably provided with high temperature resistant transparent glass and sealing strip to form an observation window, which can observe the internal working status.
[0029] The front side of the push valve module 2 is provided with a third inspection port 3, which together with the first inspection port 11 forms multiple inspection ports, further facilitating maintenance.
[0030] The lower chamber module 6 is provided with a second inspection port 4, the size of which covers the area of key internal components, further facilitating maintenance.
[0031] The aforementioned inspection port effectively solves the problem of difficult installation and maintenance of existing push valves, reduces installation and maintenance costs, and improves the operating efficiency of RTO equipment.
[0032] The first inspection port 11, the second inspection port 4 and the third inspection port 3 are all detachable. Preferably, they are fixed by cover plates with quick-release bolts, or alternatively, they are connected by pins, hinges or other means to form a rotating connection.
[0033] Preferably, the cover plates of the aforementioned inspection ports are all equipped with handles for easy opening.
[0034] The insulation module 5 is set in several groups and is a split design, that is, it includes several block-shaped insulation layers, which are respectively covered and set on the outside of the push valve module 2, the lower chamber module 6 and the connecting module 7, and are fixed by rivets. The insulation module 5 is not set at the first inspection port 11, the second inspection port 4 and the third inspection port 3, so there is no need to remove the insulation layer before maintenance, which improves maintenance efficiency. The split insulation module 5 does not need to damage the insulation layer during maintenance and disassembly.
[0035] Example 2:
[0036] Based on Example 1, such as Figure 3 This embodiment also includes a sealing baffle 8, which has several bolt holes distributed around its circumference. The sealing baffle 8 can be installed at the connection position between the lower chamber module 6 and the connecting module 7. It is not installed when the equipment is working normally, but is installed when one of the push valve modules 2 is being inspected. Figure 1 The sealing baffle is installed at position 81 to achieve a sealing effect during maintenance and prevent gas leakage.
[0037] A regenerative thermal incinerator, such as Figure 5 The device includes the push valve maintenance and connection device in any of the above embodiments. The bottom of the regenerative thermal incinerator is provided with a base 10, which supports the main body of the regenerative thermal incinerator. The push valve maintenance and connection device is located at the bottom of the regenerative thermal incinerator.
[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.
Claims
1. A device for overhauling and connecting a push valve, characterized in that: The system includes a push valve module (2), a lower chamber module (6), a connecting module (7), and an insulation module (5). The push valve module (2) is provided in two sets, which are respectively located on both sides of the lower chamber module (6). The connecting module (7) is provided in two sets. The two ends of the connecting module (7) are provided with connecting flanges (71). The two sets of connecting flanges (71) are connected to the push valve module (2) and the lower chamber module (6) respectively by bolt assemblies (9) to form a double-sided bolt sealing structure. The push valve module (2) is provided with a first inspection port (11), and the lower chamber module (6) is provided with a second inspection port (4). The insulation module (5) is provided in several sets, which are respectively covered and provided on the outside of the push valve module (2), the lower chamber module (6), and the connecting module (7).
2. The push valve maintenance and connection device according to claim 1, characterized in that: The first inspection port (11) is equipped with high-temperature resistant transparent glass to form an observation window.
3. The push valve maintenance and connection device according to claim 2, characterized in that: The first inspection port (11) is located on the top of the push valve module (2), and the third inspection port (3) is located on the front side of the push valve module (2).
4. The push valve maintenance and connection device according to claim 3, characterized in that: The insulation module (5) is not installed at the first inspection port (11), the second inspection port (4) and the third inspection port (3).
5. The push valve maintenance and connection device according to claim 4, characterized in that: The first inspection port (11), the second inspection port (4) and the third inspection port (3) are all detachable.
6. The push valve maintenance and connection device according to any one of claims 1-5, characterized in that: The push valve maintenance and connection device also includes the sealing baffle (8), which can be installed at the connection position between the lower chamber module (6) and the connection module (7) to achieve a sealing effect during maintenance.
7. The push valve maintenance and connection device according to any one of claims 1-5, characterized in that: The bolt assembly (9) includes an elastic washer.
8. A regenerative thermal incinerator, characterized in that: Includes the push valve maintenance and connection device as described in any one of claims 1-7.