Environment-friendly detection port structure for sleeve chimney wall
By adopting a combined structure of a reinforcing ring and a sealing flange on the sleeve chimney and utilizing soft seals and threaded connections, the problem of sliding displacement of the inner and outer tubes behind the environmental protection detection port of the sleeve self-supporting chimney is solved, thereby achieving simplified sealing operation and waterproof effect.
Patent Information
- Application Number
- CN202422414221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-08
AI Technical Summary
After the environmental protection inspection port is set in the sleeve self-supporting chimney, the inner and outer tubes will slide and displace due to installation requirements, affecting the stress structure of the outer tube wall. In addition, the traditional sealing method is complicated and time-consuming.
It adopts a combined structure of a reinforcement ring and a sealing flange, connected by a soft seal, fixed with screws, and the inner and outer cylinders are butted together by a threaded structure to avoid slippage and displacement and simplify the sealing operation.
It achieves a simple and effective sealing and waterproofing effect, saves materials and welding time, avoids the problem of slippage and displacement, and has a simple structure and is easy to operate.
Smart Images

Figure CN223306943U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chimneys, in particular to a sleeve chimney wall environmental protection detection port structure. Background Art
[0002] For sleeve-type free-standing chimneys, an environmental inspection port is required on the outer wall of the chimney. This port also needs to be reinforced with a reinforcement ring. After the reinforcement ring is reinforced, the port needs to be waterproofed and sealed. Traditionally, this is achieved by welding flanges to the inner and outer walls of the reinforcement ring, then adding a matching flange to the flanges and sandwiching a soft sealing material between the two flanges to provide a waterproof seal.
[0003] After the sleeve self-supporting chimney is equipped with the environmental protection detection port, the inner and outer tubes need to produce relative sliding displacement due to installation requirements. This will extend the upper and lower distances of the outer tube wall reinforcement ring by more than 300mm, which is very unfavorable to the stress structure of the chimney outer tube wall. Summary of the Invention
[0004] Purpose of the utility model: In order to overcome the shortcomings of the background technology, the utility model discloses a sleeve chimney wall environmental protection detection port structure.
[0005] Technical solution: The utility model discloses a sleeve chimney wall environmental protection detection port structure, wherein the environmental protection detection port passes through the outer tube and the inner tube in sequence. The outer tube is fixed with a reinforcement ring at the position of the outer periphery of the environmental protection detection port. The outer end surface of the reinforcement ring is provided with a screw hole. The end surface of the reinforcement ring is provided with a sealing flange and a screw hole corresponding to the reinforcement ring.
[0006] The reinforcement ring and the environmental protection detection port are sealed by a soft seal. The outer ring of the soft seal extends between the reinforcement ring and the sealing flange and is fixed and sealed by screws.
[0007] Furthermore, the inner ring of the soft seal is fastened to the outer wall of the environmental protection detection port through a throat clamp.
[0008] Furthermore, the inner and outer diameters of the sealing flange and the end face of the reinforcement ring are consistent.
[0009] Furthermore, the screw holes on the reinforcement ring are countersunk holes and are evenly spaced in the circumferential direction of the end surface of the reinforcement ring.
[0010] Furthermore, the environmental detection port includes an inner detection tube and an outer detection tube, which pass through the inner cylinder and the outer cylinder respectively. The ends of the inner detection tube and the outer detection tube are butt-jointed, and the butt-jointed ends are screwed together through a threaded structure.
[0011] Beneficial effects: Compared with the prior art, the advantages of this utility model are:
[0012] The connection of soft seals is achieved through a single detachable flange, which has a sealing and waterproof effect. The operation is simple and saves flange materials and welding work time.
[0013] The environmental protection detection port adopts split thread connection, which avoids the problem of slippage and displacement, is easy to operate and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the utility model. DETAILED DESCRIPTION
[0015] The technical solution of the present utility model will be further described below with reference to the accompanying drawings and specific implementation plans.
[0016] like Figure 1 The environmental protection detection port structure of the sleeve chimney wall shown in the figure has an environmental protection detection port 1 that passes through the outer tube 2 and the inner tube 3 in sequence. The outer tube 2 is welded with a reinforcement ring 4 at the outer periphery of the environmental protection detection port 1. The outer end face of the reinforcement ring 4 is provided with a screw hole. The end face of the reinforcement ring 4 is provided with a sealing flange 5, and a screw hole corresponding to the reinforcement ring is provided. The inner and outer diameters of the sealing flange 5 and the end face of the reinforcement ring 4 are consistent. The screw holes on the reinforcement ring 4 are countersunk holes and are evenly spaced around the end face of the reinforcement ring 4.
[0017] The reinforcement ring 4 and the environmental protection detection port 1 are sealed by a soft seal 6. The outer ring of the soft seal 6 extends between the reinforcement ring 4 and the sealing flange 5 and is fixed and sealed by screws. The inner ring of the soft seal 6 is fastened to the outer wall of the environmental protection detection port 1 through a throat clamp, thereby achieving a sealing and waterproof effect.
[0018] The environmental protection detection port 1 includes an inner detection tube 101 and an outer detection tube 102, which pass through the inner tube 3 and the outer tube 2 respectively. The ends of the inner detection tube 101 and the outer detection tube 102 are butted together, and the butted ends are screwed together through a threaded structure. After the inner and outer tubes of the chimney are installed in place, the pipe sections at both ends are screwed together, which is convenient, simple and practical, and reasonably avoids the problem of slippage and displacement.
Claims
1. A sleeve chimney wall environmental protection detection port structure, characterized by: The environmental protection detection port (1) passes through the outer cylinder (2) and the inner cylinder (3) in sequence. The outer cylinder (2) is fixed with a reinforcement ring (4) at a position on the outer periphery of the environmental protection detection port (1). The outer end surface of the reinforcement ring (4) is provided with a screw hole. The end surface of the reinforcement ring (4) is provided with a sealing flange (5) and a screw hole corresponding to the reinforcement ring is provided. The reinforcement ring (4) and the environmental protection detection port (1) are sealed via a soft seal (6); the outer ring of the soft seal (6) extends between the reinforcement ring (4) and the sealing flange (5) and is fixed and sealed by screws.
2. The sleeve chimney wall environmental protection detection port structure according to claim 1 is characterized by: The inner ring of the soft sealing member (6) is fastened to the outer wall of the environmental protection detection port (1) via a throat clamp.
3. The sleeve chimney wall environmental protection detection port structure according to claim 1 is characterized by: The inner and outer diameters of the end faces of the sealing flange (5) and the reinforcement ring (4) are consistent.
4. The sleeve chimney wall environmental protection detection port structure according to claim 1 is characterized by: The screw holes on the reinforcement ring (4) are countersunk holes and are evenly spaced in the circumferential direction of the end surface of the reinforcement ring (4).
5. The sleeve chimney wall environmental protection detection port structure according to claim 1 is characterized by: The environmental detection port (1) comprises an inner detection tube (101) and an outer detection tube (102), which pass through the inner cylinder (3) and the outer cylinder (2) respectively. The ends of the inner detection tube (101) and the outer detection tube (102) are butt-jointed, and the butt-jointed ends are screwed together via a threaded structure.