Pneumatic coke poking device

By designing a pneumatic coking device, the cylinder and the backblowing solenoid valve drive the coking rod to work, crush the coking substance at the flue gas measurement point, and remove dust through the purge gas path, the problems of inefficient and sampling effects of traditional artificial coking are solved, and the continuity and efficiency of flue gas sampling are achieved.

CN222994093UActive Publication Date: 2025-06-17TIANJIN WEIERBAIDE TECH CO LTD
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Patent Information

Application Number
CN202422144639.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-06-17
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

In the water-cooled wall area of ​​coal-fired or oil-fired boiler, ash slag generated by incomplete fuel combustion adheres to and accumulates on the surface of the sampling tube port of the measurement point, forming hard and high-temperature deposits, affecting the normal extraction of flue gas by the sampling probe. The traditional method requires manual removal of the probe filter element every day and manual scorching with long rods, which is inefficient and affects normal sampling.

Method used

A pneumatic coking device is designed, including a cylinder, a back-blowing solenoid valve, a air guide tube, a sampling probe, a scorching rod, a connecting flange casing, a hollow tube, a sampling probe, a crushing head and a sealing mechanism. The cylinder drives the scorching rod to work, and the scorching rod will smash the coking substance at the flue gas measurement point. The anti-blowing solenoid valve purges the scorching rod and the sampling probe to remove dust and prevent pollution and blockage.

Benefits of technology

The device ensures the continuity of flue gas sampling under harsh working conditions, greatly saves the workload of operation and maintenance personnel, avoids damage to subsequent sampling and analysis equipment caused by pipeline blockage, and brings a better user experience to the user.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a pneumatic coke poking device, and belongs to the technical field of flue gas sampling structures. The pneumatic coke poking device comprises a connecting plate, an air cylinder, a blowback electromagnetic valve, an air guide pipe, a sampling probe, a linear bearing, a coke poking rod, a connecting flange sleeve, a hollow pipe, a sampling probe rod, a crushing head and a sealing mechanism, the connecting plate is fixed on the lower surface of the air cylinder, and the blowback electromagnetic valve is fixed on the upper surface of the connecting plate; the upper end of the connecting flange sleeve is fixed on the lower surface of the connecting plate, a piston rod of the air cylinder is inserted into the connecting flange sleeve, one end of the air guide pipe is installed on the reverse blowing electromagnetic valve, the pneumatic coke poking device and a sampling point are coaxially installed, the continuity of smoke sampling is guaranteed under severe working conditions such as a water cooling wall, and the sampling efficiency is improved. The workload of operation and maintenance personnel is greatly reduced, the damage to subsequent sampling and analysis equipment caused by pipeline blockage is avoided, and better use experience is brought to a user.
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Description

Technical Field

[0001] This application relates to the technical field of flue gas sampling structures, and more specifically, to a pneumatic coke poking device. Background Art

[0002] In the water-cooled wall area of coal-fired or oil-fired boilers, ash residues generated by incomplete fuel combustion adhere and accumulate on the surface of the measuring point sampling pipe orifice, forming hard and high-temperature deposits, which affect the normal extraction of flue gas by the sampling probe. The traditional method requires manual removal of the probe filter element every day and manual coke poking using a long rod, resulting in low efficiency and affecting normal sampling, bringing a poor user experience to the user. Summary of the Utility Model

[0003] To make up for the above deficiencies, this application provides a pneumatic coke poking device, aiming to improve the problem that in the water-cooled wall area of coal-fired or oil-fired boilers, ash residues generated by incomplete fuel combustion adhere and accumulate on the surface of the measuring point sampling pipe orifice, forming hard and high-temperature deposits, which affect the normal extraction of flue gas by the sampling probe. The traditional method requires manual removal of the probe filter element every day and manual coke poking using a long rod, resulting in low efficiency and affecting normal sampling.

[0004] This application is implemented as follows:

[0005] This application provides a pneumatic coke poking device, including a connecting plate, a cylinder, an anti-blow solenoid valve, a gas guide pipe, a sampling probe, a linear bearing, a coke poking rod, a connecting flange sleeve, a hollow pipe, a sampling probe rod, a crushing head, and a sealing mechanism. The connecting plate is fixed on the lower surface of the cylinder, the anti-blow solenoid valve is fixed on the upper surface of the connecting plate, and the upper end of the connecting flange sleeve is fixed on the lower surface of the connecting plate;

[0006] The piston rod of the cylinder is inserted into the connecting flange sleeve. One end of the gas guide pipe is installed on the anti-blow solenoid valve, and the other end of the gas guide pipe is installed on the air inlet of the connecting flange sleeve. One end of the sampling probe is fixed on the outer wall of the connecting flange sleeve. The sampling probe rod is threadedly inserted into the connecting flange sleeve, and the air passages of the sampling probe rod and the sampling probe are connected;

[0007] A linear bearing is installed between the upper end of the coke poking rod and the lower end of the piston rod of the cylinder. The flange of the connecting flange sleeve and the flange of the measuring point flange sleeve are fixed together. The coke poking rod penetrates through the sampling probe rod. The upper end of the hollow pipe is fixed on the lower surface of the sampling probe rod. The coke poking rod penetrates through the hollow pipe, and the crushing head is fixedly installed at the lower end of the coke poking rod;

[0008] The sealing mechanism is installed on the coke poking rod, and the sealing mechanism is provided to ensure the sealing between the coke poking rod and the connecting flange sleeve.

[0009] In an embodiment of the present application, it further includes a back-blowing joint, the back-blowing joint is fixed on the connecting flange sleeve, and one end of the air guide pipe is installed on the back-blowing joint.

[0010] In an embodiment of the present application, it further includes a cylinder solenoid valve, the cylinder solenoid valve is fixed on the upper surface of the connecting plate, and the cylinder solenoid valve and the back-blow solenoid valve are electrically connected together.

[0011] In an embodiment of the present application, it further includes a connecting rod, one end of the connecting rod is fixed on the lower surface of the connecting plate, and the other end of the connecting rod is fixed on the outer wall of the flange of the connecting flange sleeve.

[0012] In an embodiment of the present application, the sealing mechanism includes a compression nut, a PTFE gasket, an O-ring and a lip seal, the PTFE gasket, the O-ring and the lip seal are all sleeved on the coke pushing rod;

[0013] The PTFE gasket and the lip seal are also inserted into the connecting flange sleeve, the O-ring is also arranged in the compression nut, and the compression nut is threadedly inserted into the connecting flange sleeve.

[0014] In an embodiment of the present application, the hollow tube penetrates through the measuring point opening of the measuring point flange sleeve, and the measuring point flange sleeve also penetrates through the measuring point opening of the measuring point flange sleeve.

[0015] In an embodiment of the present application, the hollow tube is sleeved on the coke pushing rod, and the measuring point flange sleeve is sleeved on the hollow tube.

[0016] The beneficial effect of the present application is: An air-operated coke pushing device obtained by the above design in the present application, when in use, when flue gas sampling is required, the cylinder works to drive the coke pushing rod to work, the coke pushing rod breaks the coking substances at the flue gas measurement point, and at the same time the back-blow solenoid valve works, and the purge gas path purges the coke pushing rod and the sampling probe with compressed air, removes the dust on the surface of the coke pushing rod, prevents contamination of the linear bearing and the lip seal, and at the same time cools down the coke pushing rod. The purge gas can also back-blow the broken coking substances back into the flue to prevent blockage of the sampling probe. The air-operated coke pushing device is coaxially installed with the sampling point, ensuring the continuity of flue gas sampling under harsh working conditions such as water-cooled walls, greatly saving the workload of maintenance personnel, avoiding damage to subsequent sampling and analysis equipment caused by pipeline blockage, and bringing a better user experience to users. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a relationship diagram between a pneumatic coke poking device and a measuring point flange sleeve provided by an embodiment of the present application;

[0019] Figure 2 It is a partial sectional view of a pneumatic coke poking device provided by an embodiment of the present application;

[0020] Figure 3 Provided by an embodiment of the present application Figure 2 An enlarged view of area A in

[0021] Figure 4 It is a three-dimensional structure diagram of a pneumatic coke poking device provided by an embodiment of the present application;

[0022] Figure 5 It is a three-dimensional structure diagram of a measuring point flange sleeve provided by an embodiment of the present application.

[0023] In the figure: 110 - connecting plate; 120 - cylinder; 130 - backflush solenoid valve; 140 - air duct; 150 - backflush air joint; 160 - cylinder solenoid valve; 170 - connecting rod; 190 - sampling probe; 191 - measuring point flange sleeve; 192 - linear bearing; 193 - coke poking rod; 194 - sealing mechanism; 1941 - compression nut; 1942 - PTFE gasket; 1943 - O-ring; 1944 - lip seal; 195 - connecting flange sleeve; 196 - hollow tube; 197 - sampling probe rod; 198 - crushing head. Specific Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0025] Embodiment

[0026] Please refer to Figure 1 - Figure 5, this application provides a technical solution: a pneumatic coke poking device, including a connecting plate 110, a cylinder 120, an anti-blow solenoid valve 130, a gas guide pipe 140, a sampling probe 190, a linear bearing 192, a coke poking rod 193, a connecting flange sleeve 195, a hollow pipe 196, a sampling probe rod 197, a crushing head 198, and a sealing mechanism 194. The connecting plate 110 is fixed on the lower surface of the cylinder 120, the anti-blow solenoid valve 130 is fixed on the upper surface of the connecting plate 110, and the upper end of the connecting flange sleeve 195 is fixed on the lower surface of the connecting plate 110;

[0027] The piston rod of the cylinder 120 is inserted into the connecting flange sleeve 195. One end of the gas guide pipe 140 is installed on the anti-blow solenoid valve 130. It also includes a cylinder solenoid valve 160. The cylinder solenoid valve 160 is fixed on the upper surface of the connecting plate 110. The cylinder solenoid valve 160 and the anti-blow solenoid valve 130 are electrically connected together to realize the linkage of the anti-blow solenoid valve 130 and the cylinder solenoid valve 160. The other end of the gas guide pipe 140 is installed on the air inlet of the connecting flange sleeve 195. It also includes a connecting rod 170. One end of the connecting rod 170 is fixed on the lower surface of the connecting plate 110, and the other end of the connecting rod 170 is fixed on the outer wall of the flange of the connecting flange sleeve 195. The setting of the connecting rod 170 makes the connecting flange sleeve 195 more firmly fixed on the connecting plate 110. It also includes an anti-blow air joint 150. The anti-blow air joint 150 is fixed on the connecting flange sleeve 195. One end of the gas guide pipe 140 is installed on the anti-blow air joint 150. One end of the sampling probe 190 is fixed on the outer wall of the connecting flange sleeve 195. The sampling probe rod 197 is threadedly inserted into the connecting flange sleeve 195, and the air channels of the sampling probe rod 197 and the sampling probe 190 are communicated;

[0028] A linear bearing 192 is installed between the upper end of the coke poking rod 193 and the lower end of the piston rod of the cylinder 120. The flange of the connecting flange sleeve 195 and the flange of the measuring point flange sleeve 191 are fixed together. The coke poking rod 193 penetrates through the sampling probe rod 197. The upper end of the hollow pipe 196 is fixed on the lower surface of the sampling probe rod 197. The coke poking rod 193 penetrates through the hollow pipe 196. A crushing head 198 is fixedly installed at the lower end of the coke poking rod 193. The hollow pipe 196 penetrates through the measuring point opening of the measuring point flange sleeve 191. The measuring point flange sleeve 191 also penetrates through the measuring point opening of the measuring point flange sleeve 191. The hollow pipe 196 is sleeved on the coke poking rod 193, and the measuring point flange sleeve 191 is sleeved on the hollow pipe 196;

[0029] The sealing mechanism 194 is installed on the coke pushing rod 193. The sealing mechanism 194 is provided to ensure the sealing between the coke pushing rod 193 and the connecting flange sleeve 195. The sealing mechanism 194 includes a compression nut 1941, a PTFE gasket 1942, an O-ring 1943, and a lip seal 1944. The PTFE gasket 1942, the O-ring 1943, and the lip seal 1944 are all sleeved on the coke pushing rod 193. The PTFE gasket 1942 and the lip seal 1944 are also inserted into the connecting flange sleeve 195. The O-ring 1943 is also arranged inside the compression nut 1941. The compression nut 1941 is threadedly inserted into the connecting flange sleeve 195. In this embodiment, the cylinder 120 and the backflush gas path are controlled by the cylinder solenoid valve 160 and the backflush solenoid valve 130, and can be controlled and driven by automation devices such as PLCs.

[0030] Specifically, the working principle of this pneumatic coke pushing device: When in use, when flue gas sampling is required, the cylinder 120 works to drive the coke pushing rod 193 to work. The coke pushing rod 193 breaks the coking substances at the flue gas measurement point. At the same time, the backflush solenoid valve 130 works, and the purge gas path purges compressed air on the coke pushing rod 193 and the sampling probe 197 to remove the dust on the surface of the coke pushing rod 193, prevent contamination of the linear bearing 192 and the lip seal 1944, and cool down the coke pushing rod 193 at the same time. The purge gas can also backflush the broken coking substances back into the flue to prevent blockage of the sampling probe 197. This pneumatic coke pushing device is coaxially installed with the sampling point, ensuring the continuity of flue gas sampling under harsh working conditions such as water-cooled walls, greatly saving the workload of maintenance personnel, and avoiding damage to subsequent sampling and analysis equipment caused by pipeline blockage, bringing a better user experience to users.

[0031] It should be noted that the specific model specifications of the cylinder 120, the backflush solenoid valve 130, the cylinder solenoid valve 160, and the sampling probe 190 need to be selected and determined according to the actual specifications of this device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0032] The power supply and its principle of the cylinder 120, the backflush solenoid valve 130, the cylinder solenoid valve 160, and the sampling probe 190 are clear to those skilled in the art and will not be elaborated in detail here.

[0033] The above are only embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A pneumatic coke-poking device, characterized in that: The invention comprises a connecting plate (110), a cylinder (120), a back-blowing solenoid valve (130), an air guide tube (140), a sampling probe (190), a linear bearing (192), a coke-poking rod (193), a connecting flange sleeve (195), a hollow tube (196), a sampling probe rod (197), a crushing head (198) and a sealing mechanism (194), wherein the connecting plate (110) is fixed on the lower surface of the cylinder (120), the back-blowing solenoid valve (130) is fixed on the upper surface of the connecting plate (110), and the upper end of the connecting flange sleeve (195) is fixed on the lower surface of the connecting plate (110); The piston rod of the air cylinder (120) is inserted into the connecting flange sleeve (195), one end of the air guide pipe (140) is installed on the back-blowing solenoid valve (130), and the other end of the air guide pipe (140) is installed on the air inlet of the connecting flange sleeve (195). One end of the sampling probe (190) is fixed on the outer wall of the connecting flange sleeve (195), and the sampling probe rod (197) is threadedly inserted into the connecting flange sleeve (195), and the air passages of the sampling probe rod (197) and the sampling probe (190) are in communication; The linear bearing (192) is installed between the upper end of the coke poking rod (193) and the lower end of the piston rod of the cylinder (120), the flange of the connecting flange sleeve (195) and the flange of the measuring point flange sleeve (191) are fixed together, the coke poking rod (193) passes through the sampling probe rod (197), the upper end of the hollow tube (196) is fixed on the lower surface of the sampling probe rod (197), the coke poking rod (193) passes through the hollow tube (196), and the crushing head (198) is fixedly installed at the lower end of the coke poking rod (193); The sealing mechanism (194) is installed on the coke-poking rod (193), and the sealing mechanism (194) is configured to ensure the sealing performance between the coke-poking rod (193) and the connecting flange sleeve (195).

2. A pneumatic coke-poking device according to claim 1, characterized in that: It also comprises a back-blowing air connector (150), wherein the back-blowing air connector (150) is fixed on the connecting flange sleeve (195), and one end of the air guide pipe (140) is mounted on the back-blowing air connector (150).

3. A pneumatic coke-poking device according to claim 1, characterized in that: It also includes a cylinder solenoid valve (160), which is fixed on the upper surface of the connecting plate (110), and the cylinder solenoid valve (160) and the blowback solenoid valve (130) are electrically connected together.

4. A pneumatic coke-poking device according to claim 1, characterized in that: It also includes a connecting rod (170), one end of which is fixed on the lower surface of the connecting plate (110), and the other end of which is fixed on the outer wall of the flange of the connecting flange sleeve (195).

5. The pneumatic coke-poking device according to claim 1, characterized in that: The sealing mechanism (194) comprises a compression nut (1941), a polytetrafluoroethylene gasket (1942), an O-ring (1943) and a lip-shaped oil seal (1944); the polytetrafluoroethylene gasket (1942), the O-ring (1943) and the lip-shaped oil seal (1944) are all sleeved on the coke-poking rod (193); The polytetrafluoroethylene gasket (1942) and the lip oil seal (1944) are also inserted in the connecting flange sleeve (195), and the O-ring (1943) is also arranged in the clamping nut (1941). The clamping nut (1941) is threadedly inserted in the connecting flange sleeve (195).

6. A pneumatic coke-poking device according to claim 1, characterized in that: The hollow tube (196) passes through the measuring point opening of the measuring point flange sleeve (191), and the measuring point flange sleeve (191) also passes through the measuring point opening of the measuring point flange sleeve (191).

7. A pneumatic coke-poking device according to claim 1, characterized in that: The hollow tube (196) is sleeved on the coke-poking rod (193), and the measuring point flange sleeve (191) is sleeved on the hollow tube (196).