High-temperature gas cooled reactor tail gas sampling device
By designing a multi-layer sealing module and a rotatable exhaust gas sampling device, the problem of low operation convenience of high-temperature air-cooled relay exhaust gas sampling device is solved, and efficient and safe exhaust gas collection and sealing effects are achieved.
Patent Information
- Application Number
- CN202423218795.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing high-temperature air-cooled relay exhaust gas sampling device has poor operational convenience, and it is difficult to improve operational efficiency while ensuring sealing.
An exhaust gas sampling device including an exhaust pipe, an end cap, a rotating disk, a gas pipe, a primary sealing module and a secondary sealing module are designed. Through the cooperation of the push rod and the positioning column, the rotation of the rotating partition and the annular partition are realized, and the switching of the secondary sealing module is ensured to seal and sample exhaust gas.
It realizes the safe and effective collection of high-temperature air-cooled reactor exhaust, improves operational convenience and work efficiency, and ensures sealing effect.
Smart Images
Figure CN222561377U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tail gas sampling, and in particular relates to a tail gas sampling device for a high-temperature gas-cooled reactor. Background Art
[0002] High temperature gas cooled reactor tail gas sampling is a complex and precise process, which involves the safe and effective collection of tail gas in a high temperature and radioactive environment. When performing tail gas sampling, the sampling equipment is usually started first, so that the tail gas passes through the sampler into the filter, and then the impurities and particulate matter in the tail gas are captured by the filter for subsequent analysis.
[0003] However, in order to ensure the tightness of the tail gas sampling, the common tail gas sampling methods are usually not easy to operate. How to improve the convenience of operation while ensuring the tightness of the tail gas sampling is a technical problem that needs to be solved in the current high temperature gas-cooled reactor tail gas sampling work. Utility Model Content
[0004] The purpose of the embodiment of the utility model is to provide a high temperature gas-cooled reactor tail gas sampling device, aiming to solve the problems raised in the above background technology.
[0005] The utility model is implemented as follows: a high temperature gas-cooled reactor tail gas sampling device includes an exhaust pipe and an end cover, the end cover is detachably mounted on the exhaust pipe, a rotating disk is rotatably mounted on the end cover, and a gas delivery pipe is mounted on the rotating disk; and further includes:
[0006] A primary sealing module, the primary sealing module comprises a sealing baffle installed in the exhaust pipe, and a rotating baffle rotatably installed on the sealing baffle, the rotating baffle is provided with a through hole, and the area of the through hole is smaller than the area of the sealing baffle projected onto the rotating baffle, the side wall of the rotating baffle is inserted into the inner wall of the exhaust pipe, the interior of the exhaust pipe is slidably installed with a positioning column along its axial direction, and the positioning column is connected to the interior of the exhaust pipe through a first spring, the rotating baffle is provided with a positioning hole matching the positioning column, when there is no external force, the positioning column will be inserted into the positioning hole under the elastic force of the first spring, at this time the sealing baffle will block all the through holes on the rotating baffle, the rotating disk is provided with a push rod matching the positioning column, and the end of the exhaust pipe is also provided with a sliding groove for the push rod to slide;
[0007] A secondary sealing module, the secondary sealing module is installed on the inner wall of the exhaust pipe, and the secondary sealing module is located on a side of the sealing baffle away from the exhaust pipe outlet end, the secondary sealing module is connected to the positioning column, and the secondary sealing module switches its sealing state by moving synchronously with the positioning column;
[0008] When the positioning post is inserted into the positioning hole, the secondary sealing module is in a sealed state, and the exhaust gas in the exhaust pipe cannot be transported to the side of the primary sealing module through the secondary sealing module; when the positioning post is pressurized and detached from the positioning hole, the secondary sealing module is released from the sealing state, and the exhaust gas in the exhaust pipe can be transported to the side of the primary sealing module through the secondary sealing module.
[0009] According to a further technical solution, an external thread section is provided on the exhaust pipe, and an internal thread section matching the external thread section is provided on the inner wall of the end cover.
[0010] A further technical solution is that the secondary sealing module includes an annular partition installed on the inner wall of the exhaust pipe, and a sealing cone installed in the exhaust pipe along the radial direction of the exhaust pipe, and the sealing cone is arranged on the side of the annular partition away from the sealing partition, and a conical through hole matching the sealing cone is opened on the annular partition, and a connecting rod is arranged on the side wall of the sealing cone, and the connecting rod is slidably installed in the side wall of the exhaust pipe, and a connecting column is arranged on the end of the connecting rod away from the sealing cone, and the connecting column is connected to the positioning column and moves synchronously with the positioning column.
[0011] According to a further technical solution, a reset unit for pushing the push rod to automatically return to an initial position is also provided in the sliding groove.
[0012] According to a further technical solution, the reset unit comprises a reset push block slidably installed in the sliding groove, and the reset push block is connected to the end of the sliding groove via a second spring.
[0013] The utility model provides a high temperature gas-cooled reactor tail gas sampling device. When sampling is to be performed, it is only necessary to install the end cover on the exhaust pipe and insert the push rod into the positioning hole. The push rod will completely push the positioning column out of the positioning hole, and the rotating partition will release the limit at this time and can rotate. In this process, the secondary sealing module releases the sealing state, and the tail gas in the exhaust pipe can be transported to the side of the primary sealing module through the secondary sealing module. The operator only needs to rotate the rotating disk, and the rotating disk can drive the rotating partition to rotate synchronously through the push rod, so that the through hole on the rotating partition is misaligned with the sealing partition. At this time, the tail gas in the exhaust pipe can be discharged through the through hole on the rotating partition, so that the tail gas is collected into a designated container through the gas transmission pipe. After the sampling is completed, it is only necessary to rotate the push rod to the initial position, and the sealing partition will block the through hole on the rotating partition again, and the primary sealing module can restore the seal here, and then the end cover is removed, and the secondary sealing module can restore the seal. The device has a good sealing effect by setting a double sealing mechanism, and the sampling operation of the device is simple, the work efficiency is high, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1A schematic diagram of the structure of a high temperature gas-cooled reactor tail gas sampling device provided in an embodiment of the utility model;
[0015] Figure 2 A schematic diagram of the structure of an exhaust pipe in a high-temperature gas-cooled reactor tail gas sampling device provided in an embodiment of the utility model;
[0016] Figure 3 A cross-sectional view of an exhaust pipe in a high-temperature gas-cooled reactor tail gas sampling device provided by an embodiment of the utility model;
[0017] Figure 4 A cross-sectional view of an end cover in a high temperature gas-cooled reactor tail gas sampling device provided in an embodiment of the utility model.
[0018] In the accompanying drawings: exhaust pipe 1; external thread section 11; end cover 2; rotating disk 21; gas pipe 22; internal thread section 23; primary sealing module 3; sealing baffle 31; rotating baffle 32; positioning hole 321; positioning column 33; first spring 34; push rod 35; sliding groove 36; reset push block 37; second spring 38; secondary sealing module 4; annular baffle 41; sealing cone 42; connecting column 43; connecting rod 44. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0021] like Figure 1-Figure 4 As shown, a high temperature gas-cooled reactor tail gas sampling device provided by an embodiment of the utility model comprises an exhaust pipe 1 and an end cover 2, wherein the end cover 2 is detachably mounted on the exhaust pipe 1, a rotating disk 21 is rotatably mounted on the end cover 2, and a gas delivery pipe 22 is mounted on the rotating disk 21; and further comprises:
[0022] A primary sealing module 3, the primary sealing module 3 comprises a sealing baffle 31 installed in the exhaust pipe 1, and a rotating baffle 32 rotatably installed on the sealing baffle 31, the rotating baffle 32 is provided with a through hole, and the area of the through hole is smaller than the area of the sealing baffle 31 projected onto the rotating baffle 32, the side wall of the rotating baffle 32 is inserted into the inner wall of the exhaust pipe 1, the interior of the exhaust pipe 1 is slidably installed with a positioning column 33 along its axial direction, and the positioning column 33 is connected to the interior of the exhaust pipe 1 through a first spring 34, the rotating baffle 32 is provided with a positioning hole 321 matching the positioning column 33, when there is no external force, under the elastic force of the first spring 34, the positioning column 33 will be inserted into the positioning hole 321, at this time, the sealing baffle 31 will block all the through holes on the rotating baffle 32, the rotating disk 21 is provided with a push rod 35 matching the positioning column 33, and the end of the exhaust pipe 1 is also provided with a sliding groove 36 for the push rod 35 to slide;
[0023] A secondary sealing module 4, the secondary sealing module 4 is installed on the inner wall of the exhaust pipe 1, and the secondary sealing module 4 is located on the side of the sealing baffle 31 away from the outlet end of the exhaust pipe 1, the secondary sealing module 4 is connected to the positioning column 33, and the secondary sealing module 4 switches its sealing state by moving synchronously with the positioning column 33;
[0024] When the positioning column 33 is inserted into the positioning hole 321, the secondary sealing module 4 is in a sealed state, and the exhaust gas in the exhaust pipe 1 cannot be transported to the side of the primary sealing module 3 through the secondary sealing module 4; when the positioning column 33 is pressurized and detached from the positioning hole 321, the secondary sealing module 4 is released from the sealed state, and the exhaust gas in the exhaust pipe 1 can be transported to the side of the primary sealing module 3 through the secondary sealing module 4.
[0025] In the embodiment of the utility model, when in use, the exhaust pipe 1 can be installed at the exhaust end of the high temperature gas-cooled reactor by welding. Under normal conditions, the double sealing of the primary sealing module 3 and the secondary sealing module 4 effectively prevents exhaust gas leakage. When sampling is to be performed, it is only necessary to install the end cover 2 on the exhaust pipe 1 and insert the push rod 35 into the positioning hole 321. The push rod 35 will completely push the positioning column 33 out of the positioning hole 321, and the rotating partition 32 will be released from the limit and can be rotated. In this process, the secondary sealing module 4 is released from the sealing state, and the exhaust gas in the exhaust pipe 1 can be transported to the side of the primary sealing module 3 through the secondary sealing module 4. The operator only needs to rotate the rotating disk 21, and the rotating disk 21 can drive the rotating partition 32 to rotate synchronously through the push rod 35, so that the through hole on the rotating partition 32 is misaligned with the sealing partition 31. At this time, the exhaust gas in the exhaust pipe 1 can be discharged through the through hole on the rotating partition 32, so that the exhaust gas is collected into a designated container through the gas delivery pipe 22.
[0026] After sampling is completed, the push rod 35 only needs to be rotated to the initial position, and the sealing partition 31 will seal the through hole on the rotating partition 32 again, and the primary sealing module 3 can restore the seal here, and then the end cover 2 can be removed, and the secondary sealing module 4 can restore the seal.
[0027] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the utility model, the exhaust pipe 1 is provided with an external thread section 11 , and the inner wall of the end cover 2 is provided with an internal thread section 23 matching the external thread section 11 .
[0028] In the embodiment of the utility model, when in use, it is only necessary to screw the end cover 2, and through the cooperation of the internal thread section 23 and the external thread section 11, the end cover 2 can be installed on the exhaust pipe 1, and at the same time, the rotating disk 21 can be driven to move along the axial direction of the exhaust pipe 1 toward the side close to the exhaust pipe 1, and the push rod 35 can be inserted into the positioning hole 321.
[0029] like Figure 3 As shown, as a preferred embodiment of the utility model, the secondary sealing module 4 includes an annular baffle 41 installed on the inner wall of the exhaust pipe 1, and a sealing cone 42 installed in the exhaust pipe 1 along the radial direction of the exhaust pipe 1, and the sealing cone 42 is arranged on the side of the annular baffle 41 away from the sealing baffle 31, and the annular baffle 41 is provided with a cone-shaped through hole matching the sealing cone 42, and a connecting rod 44 is arranged on the side wall of the sealing cone 42, and the connecting rod 44 is slidably installed in the side wall of the exhaust pipe 1, and a connecting column 43 is arranged on the end of the connecting rod 44 away from the sealing cone 42, and the connecting column 43 is connected to the positioning column 33 and moves synchronously with the positioning column 33.
[0030] In the embodiment of the utility model, when in use, due to the absence of external force, the positioning column 33 will be inserted into the positioning hole 321, at this time, the positioning column 33 will drive the connecting rod 44 through the connecting column 43 to be in a state close to the sealing partition 31, at this time, the connecting rod 44 drives the sealing cone 42 to completely fit in the through hole of the annular partition 41, and through the cooperation of the annular partition 41 and the sealing cone 42, the inside of the exhaust pipe 1 can be blocked, so that the exhaust gas in the exhaust pipe 1 cannot be transported to the side of the primary sealing module 3 through the secondary sealing module 4. The double sealing of the primary sealing module 3 and the secondary sealing module 4 effectively improves the sealing performance of the device. When sampling, the push rod 35 will push the positioning column 33 to disengage from the positioning hole 321, and the positioning column 33 will drive the connecting column 43 to move synchronously. The connecting column 43 can drive the sealing cone 42 to move synchronously to the side away from the annular partition 41 through the connecting rod 44, so that the sealing cone 42 is separated from the annular partition 41. At this time, the tail gas can be transported to the side of the sealing partition 31 through the through hole on the annular partition 41. And because the primary sealing module 3 is still in a sealed state at this time, it still has the function of sealing the tail gas.
[0031] like Figure 2 As shown in the figure, as a preferred embodiment of the utility model, a reset unit for pushing the push rod 35 to automatically return to the initial position is also provided in the sliding groove 36. When the sampling is completed, the operator only needs to loosen the rotating disk 21, and under the action of the reset unit, the push rod 35 will automatically return to the initial position, so that the primary sealing module 3 will seal the exhaust pipe 1 again.
[0032] In the embodiment of the utility model, the reset unit includes a reset push block 37 slidably installed in the sliding groove 36 , and the reset push block 37 is connected to the end of the sliding groove 36 through a second spring 38 .
[0033] When in use, the second spring 38 is compressed by the force during the rotation of the push rod 35. When the sampling is completed, the push rod 35 only needs to be released, and under the elastic restoring force of the second spring 38, the second spring 38 will push the reset push block 37 to return to the initial position, thereby driving the push rod 35 to synchronously return to the initial position through the reset push block 37.
[0034] Working principle: When sampling is to be performed, the end cover 2 only needs to be installed on the exhaust pipe 1, and the push rod 35 needs to be inserted into the positioning hole 321. The push rod 35 will completely push the positioning column 33 out of the positioning hole 321, and the rotating partition 32 will be released from the limit and can be rotated. In this process, the positioning column 33 will drive the connecting column 43 to move synchronously, and the connecting column 43 can drive the sealing truncated cone 42 to move synchronously to the side away from the annular partition 41 through the connecting rod 44, so that the sealing truncated cone 42 is separated from the annular partition 41. At this time, the exhaust gas can be transported to the side of the sealing partition 31 through the through hole on the annular partition 41. The operator only needs to rotate the rotating disk 21, and the rotating disk 21 can drive the rotating partition 32 to rotate synchronously through the push rod 35, so that the through hole on the rotating partition 32 is misaligned with the sealing partition 31. At this time, the exhaust gas in the exhaust pipe 1 can be discharged through the through hole on the rotating partition 32, so that the exhaust gas is collected in the designated container through the gas pipe 22.
[0035] After the sampling is completed, it is only necessary to loosen the push rod 35. Under the elastic restoring force of the second spring 38, the second spring 38 will push the reset push block 37 to return to the initial position, thereby driving the push rod 35 to synchronously restore the initial position through the reset push block 37. The primary sealing module 3 can restore the seal here, and then the end cover 2 can be removed, and the secondary sealing module 4 can restore the seal.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high temperature gas-cooled reactor tail gas sampling device, characterized in that: It includes an exhaust pipe and an end cover, wherein the end cover is detachably mounted on the exhaust pipe, a rotating disk is rotatably mounted on the end cover, and an air delivery pipe is mounted on the rotating disk; and further includes: A primary sealing module, the primary sealing module comprises a sealing baffle installed in the exhaust pipe, and a rotating baffle rotatably installed on the sealing baffle, the rotating baffle is provided with a through hole, and the area of the through hole is smaller than the area of the sealing baffle projected onto the rotating baffle, the side wall of the rotating baffle is inserted into the inner wall of the exhaust pipe, the interior of the exhaust pipe is slidably installed with a positioning column along its axial direction, and the positioning column is connected to the interior of the exhaust pipe through a first spring, the rotating baffle is provided with a positioning hole matching the positioning column, when there is no external force, the positioning column will be inserted into the positioning hole under the elastic force of the first spring, the rotating disk is provided with a push rod matching the positioning column, and the end of the exhaust pipe is also provided with a sliding groove for the push rod to slide; A secondary sealing module, the secondary sealing module is installed on the inner wall of the exhaust pipe, and the secondary sealing module is located on a side of the sealing baffle away from the exhaust pipe outlet end, the secondary sealing module is connected to the positioning column, and the secondary sealing module switches its sealing state by moving synchronously with the positioning column; When the positioning post is inserted into the positioning hole, the secondary sealing module is in a sealed state, and the exhaust gas in the exhaust pipe cannot be transported to the side of the primary sealing module through the secondary sealing module; when the positioning post is pressurized and detached from the positioning hole, the secondary sealing module is released from the sealing state, and the exhaust gas in the exhaust pipe is transported to the side of the primary sealing module through the secondary sealing module.
2. The high temperature gas-cooled reactor tail gas sampling device according to claim 1, characterized in that: The exhaust pipe is provided with an external thread section, and the inner wall of the end cover is provided with an internal thread section matching the external thread section.
3. The high temperature gas-cooled reactor tail gas sampling device according to claim 1, characterized in that: The secondary sealing module includes an annular partition installed on the inner wall of the exhaust pipe, and a sealing cone installed in the exhaust pipe along the radial direction of the exhaust pipe, and the sealing cone is arranged on the side of the annular partition away from the sealing partition, and a conical through hole matching the sealing cone is opened on the annular partition, and a connecting rod is arranged on the side wall of the sealing cone, and the connecting rod is slidably installed in the side wall of the exhaust pipe. A connecting column is arranged on the end of the connecting rod away from the sealing cone, and the connecting column is connected to the positioning column and moves synchronously with the positioning column.
4. The high temperature gas-cooled reactor tail gas sampling device according to claim 1, characterized in that: The sliding groove is also provided with a reset unit for pushing the push rod to automatically restore the initial position.
5. The high temperature gas-cooled reactor tail gas sampling device according to claim 4, characterized in that: The reset unit comprises a reset push block slidably installed in the sliding groove, and the reset push block is connected to the end of the sliding groove through a second spring.