Chimney with novel test port
By designing a new chimney structure, using stainless steel and a rotating plate handle, the problem of rust and sticking at the test port, making it difficult to open, was solved. This enabled convenient and efficient flue gas detection, improved detection efficiency and equipment corrosion resistance, and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
The existing test port chimney is prone to rusting in humid environments and corrosive flue gas, causing the plug to stick to the pipe clamp, making it difficult to open and affecting the testing efficiency and boiler condition assessment.
A novel chimney structure is designed, consisting of a main body, a wire head, a connector, a plug cap, and a handle. It is made of stainless steel and can be easily opened through a rotatable handle and a snap-fit mechanism. It is filled with fire-resistant and heat-insulating ceramic fiber to improve corrosion resistance and sealing.
It enables a single person to easily open the test port, improving testing efficiency, reducing the risk of rust, enhancing corrosion resistance and heat insulation performance, extending service life, adapting to complex environments, and supporting environmental supervision and boiler optimization.
Smart Images

Figure CN224065510U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a boiler flue gas emission detection field especially relates to a chimney of novel test mouth. BACKGROUND
[0002] In the boiler flue gas emission detection work, the chimney of test mouth is the key component to obtain the flue gas sample. The existing chimney of test mouth usually only simply welds the ordinary welded pipe hoop on the chimney main body, and then uses the general plug to block, and this structure exposes many serious defects in the actual use process. First, since the ordinary welded pipe hoop and the plug material are mostly ordinary metal, in the humid environment, especially in the long-term outdoor complex climate conditions and contact with the corrosive flue gas components, the pipe hoop is easy to be corroded, and the plug and the pipe hoop are also firmly connected together due to rust. Secondly, when the test mouth needs to be opened for flue gas detection, due to the rust adhesion of the plug and the pipe hoop, it is often necessary to use screw loosening liquid and large spanner or large pipe wrench and other tools, even so, sometimes it is very difficult to open successfully with these tools. This not only consumes a lot of time and energy, but also leads to extremely low work efficiency, seriously affects the progress of testing flue gas, and further may affect the timely evaluation and adjustment of the boiler operation state, and cannot efficiently and accurately provide data support for environmental protection supervision and boiler performance optimization. CONTENT OF THE UTILITY MODEL
[0003] In view of the defects of the prior art, the utility model provides a chimney of novel test mouth, which has the advantages that a single person can easily open the test mouth without the aid of additional tools, effectively solves the problems of rusting and inconvenience of opening of the traditional chimney of test mouth, greatly improves the efficiency of detection work, and solves the problems in the background art.
[0004] The utility model provides the following technical scheme: a chimney of novel test mouth, including body, silk head, joint, plug cap and plate handle;
[0005] The body is a cylindrical hollow structure, and a through hole is formed on one side of the body;
[0006] The silk head is a cylindrical hollow structure with open ends, and one end of the silk head is connected perpendicularly between the through hole and the body;
[0007] The joint is a cylindrical hollow structure with open ends, and one end of the joint is connected to the opposite end of the body connected to the silk head;
[0008] The plug cap is a cylindrical hollow structure with an open end, and the open end of the plug cap is connected to the opposite end of the joint connected to the silk head;
[0009] The plate handle is arranged on the plug cap, and the plate handle is suitable for transmitting force to the plug cap to separate the plug cap and the joint.
[0010] In one of the utility model embodiments, the number of the plate handle is two, and one end of the plate handle is rotatably connected to the outer peripheral wall of the plug cap.
[0011] In one of the utility model embodiments, the plate handle is symmetrically arranged about the plug cap.
[0012] In one of the utility model embodiments, the plate handle is provided with a fixing ring, and the fixing ring is arranged at the opposite end of the plate handle connected to the plug cap.
[0013] In one of the utility model embodiments, the length of the plate handle is greater than the length of the plug cap.
[0014] In one of the utility model embodiments, one end of the wire head is connected to the body by welding.
[0015] In one of the utility model embodiments, the opposite end of the wire head is provided with an external thread, the one end of the connector is provided with an internal thread, and the middle part of the connector is provided with a clamping groove; the internal thread of the one end of the connector is matched with the external thread of the opposite end of the wire head, and the two are fixed by screw connection.
[0016] In one of the utility model embodiments, the connection mode of the plug cap and the connector is clamping, and the plug cap is internally provided with a clamping block matched with the clamping groove of the middle part of the connector.
[0017] In one of the utility model embodiments, the middle part of the body is filled with fireproof and heat-insulating ceramic fiber.
[0018] In one of the utility model embodiments, the material of the wire head, the material of the connector, the material of the plug cap, and the material of the plate handle are all stainless steel; and the material of the body is double-layer stainless steel.
[0019] The utility model has the beneficial effects that:
[0020] By designing the chimney as a structure combined by the body, the wire head, the connector, the plug cap and the plate handle, and according to the ingenious design of various aspects of the application, flexible assembly and disassembly can be realized. Specifically, the symmetric and rotatable plate handle design facilitates the opening of the plug cap, solves the problems of difficult opening and low efficiency, and is conducive to flue gas detection and boiler state evaluation; the wire head is welded to the body, the wire head is screw-connected to the connector, and the plug cap is clamped to the connector, so that the connection is firm and convenient for maintenance and repair, and the risk of rusting and difficult disassembly is reduced; the body is filled with fireproof and heat-insulating ceramic fiber, which improves the fireproof and heat-insulating properties, prolongs the service life and prevents scalding; and the stainless steel material is used for the various components, which enhances the corrosion resistance and strength, adapts to complex and harsh environments, and reduces the cost and trouble of component damage and replacement.
[0021] Other features and aspects of the utility model will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.
[0023] Figure 1 This diagram shows the main structure of the chimney for the novel test port according to an embodiment of the present invention. Detailed Implementation
[0024] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0025] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0029] The chimney of the novel testing port is a novel detection auxiliary device with novel structure and special material, which is applied to the field of gas (oil, coal) boiler flue gas emission detection of environmental protection departments and third-party detection institutions, and provides a convenient, efficient and stable testing port for flue gas detection, and ensures the smooth performance of the detection work.
[0030] Specific reference Figure 1 , as a specific embodiment of the chimney of the novel testing port of the utility model, the chimney of the novel testing port comprises a body 110, a wire head 120, a connector 130, a plug cap 140 and a plate handle 150, and it is explained that the chimney is composed of the body 110, the wire head 120, the connector 130, the plug cap 140 and the plate handle 150.
[0031] Further, as shown in Figure 1 , the chimney is composed of multiple parts, wherein the large cylindrical part corresponds to the body 110, the small cylindrical structure and the accessory components connected on the side correspond to the wire head 120, the connector 130, the plug cap 140 and the plate handle 150 respectively, and the composition elements of the chimney structure are embodied.
[0032] The body 110 is a cylindrical hollow structure, and a through hole is formed on one side of the body 110; the body 110 is a hollow cylinder, and such a structure can allow flue gas to pass through; one side of the body 110 has a hole penetrating the body 110, and the hole is used for connecting and installing the wire head 120 and providing a channel for realizing the function of the testing port.
[0033] Further, as shown in Figure 1 , the large cylindrical body is the body 110, which is hollow and can allow flue gas to pass through; the body 110 has a hole on the side, and the hole is a through hole, which provides a channel for connecting the wire head 120.
[0034] The wire head 120 is a cylindrical hollow structure with two open ends; one end of the wire head 120 is connected perpendicularly between the through hole and the body 110; the wire head 120 is also a hollow cylinder with two open ends, which can ensure that flue gas can smoothly pass through the wire head 120; one end of the wire head 120 penetrates the through hole on the body 110 and is connected perpendicularly with the body 110; this connection mode ensures the relative position and stability between the wire head 120 and the body 110, and also prepares for the connection of the connector 130.
[0035] Further, as shown in Figure 1 , the small cylindrical structure is the wire head 120, which has two open ends; one end penetrates the through hole on the body 110 and is connected perpendicularly with the body 110, which ensures that flue gas can pass through the wire head 120 and enter stably.
[0036] The connector 130 is a hollow cylindrical structure with openings at both ends. One end of the connector 130 is connected to the opposite end of the connection between the wire head 120 and the body 110. The connector 130 is also a hollow cylinder with openings at both ends to facilitate the flow of flue gas. One end of the connector 130 is connected to the opposite end of the wire head 120. Through this connection method, the wire head 120 and the subsequent plug cap 140 are connected into a whole, making the entire test port structure more complete.
[0037] Furthermore, such as Figure 1 As shown, the connector 130 is also a cylinder with open ends. One end is connected to the opposite end of the connection between the threaded end 120 and the body 110, which serves to connect the threaded end 120 and the cap 140, making the structure more complete.
[0038] The plug cap 140 is a hollow cylindrical structure with one open end. The open end of the plug cap 140 is connected to the opposite end of the connector 130 and the threaded end 120. The plug cap 140 is a hollow cylinder with one open end and the opposite end closed. The open end of the plug cap 140 is connected to the opposite end of the connector 130. The main function of the plug cap 140 is to seal the test port when testing is not required to prevent flue gas leakage and other situations.
[0039] Furthermore, such as Figure 1 As shown, the plug cap 140 has an open end, which is connected to the opposite end of the connector 130 and the threaded end 120 to seal the test port and prevent flue gas leakage.
[0040] The handle 150 is set on the plug cap 140. The handle 150 is used to transmit force to the plug cap 140, so that the plug cap 140 is separated from the connector 130. The setting of the handle 150 makes it possible for the operator to transmit force to the plug cap 140 by moving the handle 150 when it is necessary to open the test port for testing, thereby separating the plug cap 140 from the connector 130 and achieving the purpose of opening the test port, thus improving the convenience of operation.
[0041] Furthermore, such as Figure 1 As shown, the handle 150 is installed on the plug cap 140. By turning the handle 150, force can be transmitted to the plug cap 140, which allows one person to easily open it without the aid of tools. This eliminates the inconvenience of carrying tools up and down, and allows one person to easily solve the problem of the test port being difficult to open.
[0042] In this embodiment, two handles 150 are provided, and one end of each handle 150 is rotatably connected to the outer peripheral wall of the cap 140. During manufacturing, two handles 150 are installed at corresponding positions on the outer peripheral wall of the cap 140. One end of each handle 150 is connected to the outer peripheral wall of the cap 140 via a pivot or other connecting component, allowing the handle 150 to rotate around the connection point. Two handles 150 provide a more balanced force application point, making it easier for operators to apply external force to the cap 140 by rotating the handle 150. Compared to a single handle 150, the operation is more stable and labor-saving, and the cap 140 can be separated from the connector 130 more easily, improving the efficiency of opening the test port.
[0043] In this embodiment, the handles 150 are symmetrically arranged with the plug cap 140 as the axis. With the axis of the plug cap 140 as the reference, the two handles 150 are symmetrically installed on the outer peripheral wall of the plug cap 140 to ensure that the angles and distances between the two with respect to the axis are equal. The symmetrical arrangement ensures the uniformity of the applied force. When the handles 150 are turned, the force on the plug cap 140 is evenly distributed, avoiding difficulty in opening or damage to the plug cap 140 due to uneven force, and also making the appearance more regular.
[0044] In this embodiment, the handle 150 is provided with a fixing ring 151. The fixing ring 151 is located on the opposite end of the handle 150 and the plug cap 140. The fixing ring 151 is installed at the end of the handle 150 away from the connection point with the plug cap 140 by means of a sleeve. The fixing ring 151 can be a circular shape that is easy to grip. The fixing ring 151 provides the operator with a clear grip position, which is convenient for applying force and can prevent the hand from slipping during the operation, thereby improving the safety and convenience of operation.
[0045] In this embodiment, the length of the handle 150 is greater than the length of the plug cap 140. When designing and manufacturing the handle 150, it is ensured that the length of the handle 150 from the connection point with the plug cap 140 to the other end is greater than the length of the plug cap 140 itself. According to the lever principle, the longer handle 150 increases the lever arm, and when the same force is applied, it can generate a larger torque, so that the operator can separate the plug cap 140 from the connector 130 with a smaller force, further reducing the difficulty of operation.
[0046] In this embodiment, one end of the thread 120 is connected to the body 110 by welding. A suitable welding process, such as argon arc welding, is used to weld the thread 120 to the edge of the through hole of the body 110, ensuring that the weld is well sealed and firmly connected. The welded connection enables the thread 120 and the body 110 to form a solid whole, ensuring that the flue gas will not leak from the connection part. At the same time, it has high strength and stability and can withstand the pressure and flow impact of the flue gas.
[0047] In this embodiment, the opposite end of the threaded end 120 is provided with an external thread, and one end of the connector 130 is provided with an internal thread. A groove is provided in the middle of the connector 130. The internal thread at one end of the connector 130 matches the external thread at the opposite end of the threaded end 120 and is fixed by a threaded connection. An external thread (external thread) is machined at the opposite end of the threaded end 120, and an internal thread (internal thread) is machined at the corresponding end of the connector 130. A groove is machined in the middle of the connector 130. During installation, the external thread of the threaded end 120 and the internal thread of the connector 130 are screwed together and tightened. The threaded connection method has good connection tightness and disassembly and assembly, which facilitates the replacement or maintenance of components when needed. The groove is set to prepare for subsequent engagement with the plug cap 140.
[0048] In this embodiment, the connection between the plug cap 140 and the connector 130 is a snap-fit connection. The plug cap 140 has a locking block inside that mates with the locking groove in the middle of the connector 130. The locking block is installed inside the plug cap 140 at the position corresponding to the locking groove of the connector 130. When installing the plug cap 140, the locking block is aligned with the locking groove of the connector 130, inserted, and locked. The snap-fit connection is simple to operate and can quickly realize the connection and separation of the plug cap 140 and the connector 130, meeting the needs of frequent opening and closing of the test port. At the same time, the connection is reliable and can effectively prevent the plug cap 140 from accidentally falling off.
[0049] In this embodiment, the body 110 is filled with refractory and heat-insulating ceramic fibers. When manufacturing the body 110, the refractory and heat-insulating ceramic fibers are cut into appropriate shapes and sizes and filled into the gaps between the double-layer structure of the body 110. The filling is uniform and dense. The refractory and heat-insulating ceramic fibers have good fire resistance and can withstand the baking of high-temperature flue gas, protecting the structure of the body 110. Its heat insulation performance can reduce heat loss, lower the temperature of the outer wall of the chimney, prevent burns to operators, and also help save energy.
[0050] In this embodiment, the materials of the threaded end 120, the connector 130, the plug cap 140, and the handle 150 are all stainless steel; the body 110 is made of double-layer stainless steel. The threaded end 120, connector 130, plug cap 140, and handle 150 are made of stainless steel, and the body 110 is made of double-layer stainless steel. It is formed through a standard processing technology. Stainless steel has excellent corrosion resistance and can resist the erosion of outdoor humid environments and corrosive flue gas, extending the service life of the components. The double-layer stainless steel body 110 has higher strength and can better withstand the internal flue gas pressure and external environmental forces, ensuring the overall structural stability of the chimney.
[0051] This novel test port chimney, through its rotatable and symmetrically distributed plates and fixing rings on the outer periphery of the plug cap, welded connections between the threaded ends and the main body, threaded connections between the threaded ends and the connectors, snap-fit connections between the plug cap and the connectors, and the main body being filled with refractory and heat-insulating ceramic fiber and all components being made of stainless steel, achieves the following effects: convenient opening of the test port for flue gas testing, improved work efficiency, guaranteed connection firmness and sealing, easy maintenance and repair, reduced risk of rust and adhesion, improved chimney fire resistance and heat insulation performance, extended service life, enhanced overall corrosion resistance and strength, adaptability to complex and harsh environments, reduced component damage and replacement costs and hassles, and provides efficient and accurate data support for environmental supervision and boiler performance optimization.
[0052] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A chimney for a new type of test port, characterized in that The device comprises a body, a wire head, a joint, a plug cap and a plate handle; The body is a hollow cylinder structure, and a through hole is formed on one side of the body; The wire head is a hollow cylinder structure with open ends, and one end of the wire head is connected perpendicularly between the through hole and the body; The joint is a hollow cylinder structure with open ends, and one end of the joint is connected to the opposite end of the wire head and the body; The plug cap is a hollow cylinder structure with one open end, and the open end of the plug cap is connected to the opposite end of the joint and the wire head; The plate handle is arranged on the plug cap, and the plate handle is suitable for transmitting force to the plug cap to separate the plug cap from the joint.
2. The chimney of the novel test port according to claim 1, characterized in that The number of plate handles is two, and one end of the plate handle is rotatably connected to the outer peripheral wall of the plug cap.
3. The chimney of the novel test port according to claim 2, characterized in that The plate handles are symmetrically arranged around the plug cap as the axis.
4. The chimney of the novel test port according to claim 3, characterized in that The plate handle is provided with a fixing ring arranged on the opposite end of the plate handle connected to the plug cap.
5. The chimney of the novel test port according to claim 4, characterized in that The length of the plate handle is greater than the length of the plug cap.
6. The chimney of the novel test port according to claim 5, characterized in that One end of the wire head is connected to the body by welding.
7. The chimney of the novel test port according to claim 6, characterized in that An outer wire is arranged on the opposite end of the wire head, an inner wire is arranged on one end of the joint, and a clamping groove is arranged in the middle of the joint.
8. The chimney of the novel test port according to claim 7, characterized in that The inner wire on one end of the joint matches the outer wire on the opposite end of the wire head, and the joint is fixed by screw thread connection.
9. The chimney of the novel test port according to claim 8, characterized in that The plug cap and the joint are connected by clamping, and the plug cap is provided with a clamping block matched with the clamping groove in the middle of the joint.
10. The chimney of the novel test port according to claim 1, characterized in that The body is filled with fire-resistant and heat-insulating ceramic fiber in the middle. The material of the wire head, the joint, the plug cap and the plate handle is stainless steel, and the material of the body is double-layer stainless steel.