A special device for testing the efficiency of an iodine adsorber

Abstract

This utility model discloses a special device for testing the efficiency of an iodine adsorber, comprising: a support frame, a blower mechanism, an air duct, and a control module. The blower mechanism is mounted on the support frame. One end of the air duct is connected to the air outlet of the blower mechanism, and the other end of the air duct is detachably connected to the exhaust duct of the iodine adsorber. The blower mechanism supplies airflow to the iodine adsorber through the exhaust duct for testing. The control module is located on the support frame and is electrically connected to the blower mechanism to control the airflow of the blower mechanism. This eliminates the need to remove the expansion joint in front of the online fan, ensuring the availability of the atmospheric monitoring and emission system inside the containment, reducing the occurrence of dangerous accidents, improving the reliability of the containment, and enabling more convenient and stable iodine adsorber efficiency testing. It also reduces labor intensity, increases testing efficiency, lowers the cost and labor of each test, and facilitates operation.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power testing technology, and in particular to a special device for testing the efficiency of an iodine adsorber. Background Technology

[0002] The iodine adsorber in the containment atmosphere monitoring and exhaust system (ETY system) of a nuclear power plant requires annual efficiency tests to verify that its performance meets standard requirements. Due to design constraints, an expansion joint in front of an online fan must be removed before each test. The online fan is then started, and air is drawn from the nuclear fuel building to test the iodine adsorber's efficiency. During the entire test, the containment atmosphere monitoring and exhaust system is unavailable. If an accident occurs during this time, it reduces the reliability of the containment and could even lead to overpressure rupture, releasing radioactive materials into the atmosphere with serious consequences. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a special device for testing the efficiency of an iodine adsorber.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a special device for testing the efficiency of an iodine adsorber is constructed, comprising: a support frame, a blower mechanism, an air duct, and a control module; the blower mechanism is installed on the support frame; one end of the air duct is connected to the air outlet of the blower mechanism, and the other end of the air duct is detachably connected to the exhaust duct of the iodine adsorber, and the blower mechanism delivers airflow to the iodine adsorber through the exhaust duct for testing; the control module is set on the support frame and electrically connected to the blower mechanism to control the airflow of the blower mechanism.

[0005] Furthermore, the duct includes: a flexible middle section, and a first flange and a second flange respectively disposed at both ends of the middle section. The first flange is detachably connected to the blower mechanism, and the second flange is detachably connected to the exhaust duct of the iodine adsorber.

[0006] Furthermore, the duct also includes a plurality of support rings spaced apart on the middle section.

[0007] Furthermore, the support frame includes: a base, a support seat, and a shock-absorbing component. The support seat is mounted on the base via the shock-absorbing component, and the blower mechanism is mounted on the support seat.

[0008] Furthermore, the shock absorption assembly includes: a first housing, a second housing, an elastic element, and a limiting element. The first housing is mounted on the base, and the second housing is mounted on the support. The first housing is fastened to the second housing, and a gap is provided between the first housing and the second housing. The elastic element is compressed and disposed between the first housing and the second housing. The limiting element is installed between the base and the support to limit the distance between the support and the base.

[0009] Furthermore, the support frame also includes a plurality of rollers mounted on the base, and a handle bracket disposed on the base or the support seat.

[0010] Furthermore, the blower mechanism includes a volute, a motor, and a fan wheel, wherein the volute and the motor are both mounted on the support base; the fan wheel is rotatably connected in the volute and connected to the output end of the motor.

[0011] Furthermore, the blower mechanism also includes a coupling and a sealing cover, the sealing cover being disposed on the support base; the coupling is rotatably connected in the sealing cover, one end passing through the sealing cover and connected to the impeller, and the other end passing through the sealing cover and connected to the output end of the motor, and the sealing cover is provided with lubricating oil.

[0012] Furthermore, the blower mechanism also includes a filter disposed at the air inlet of the volute.

[0013] Furthermore, the special device for testing the efficiency of the iodine adsorber also includes a flow monitoring instrument installed at the air outlet of the volute.

[0014] The following are the beneficial effects of implementing this utility model:

[0015] This application utilizes a blower mechanism mounted on a support frame. One end of the duct is connected to the outlet of the blower mechanism, and the other end is detachably connected to the exhaust duct of the iodine adsorber. The blower mechanism delivers airflow to the iodine adsorber through the exhaust duct for testing. A control module, mounted on the support frame and electrically connected to the blower mechanism, controls the airflow. An external dedicated device for iodine adsorber efficiency testing serves to deliver the tracer, thus avoiding the need to remove the expansion joint before the online fan. This ensures the availability of the atmospheric monitoring and emission systems within the containment, reduces the risk of accidents, improves the reliability of the containment, and allows for more convenient and stable iodine adsorber efficiency testing. It also reduces labor intensity, increases testing efficiency, lowers the cost and labor of each test, and facilitates operation. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] In the attached image:

[0018] Figure 1 This is a front view of the special device for testing the efficiency of an iodine adsorber in some embodiments of this utility model;

[0019] Figure 2 This is a side view of a special device for testing the efficiency of an iodine adsorber in some embodiments of this utility model;

[0020] Figure 3 This is a front view of the air duct in some embodiments of this utility model;

[0021] Figure 4 This is a front view of the support frame in some embodiments of this utility model;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of the shock-absorbing component in some embodiments of the present invention;

[0023] Figure 6 This is a cross-sectional schematic diagram of the shock-absorbing component in some embodiments of this utility model.

[0024] Explanation of markings in the diagram

[0025] 1. Bearing frame, 11. Base, 12. Support seat, 13. Shock absorption assembly, 131. First housing, 132. Second housing, 133. Elastic element, 134. Limiting element, 14. Roller, 15. Handle bracket, 2. Blower mechanism, 21. Volute, 22. Motor, 23. Fan wheel, 24. Coupling, 25. Sealing cover, 26. Filter, 3. Air duct, 31. Intermediate section, 32. First flange, 33. Second flange, 34. Support ring, 4. Control module, 5. Flow monitoring instrument. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0029] Please see Figures 1 to 4The first embodiment of this utility model discloses a special device for testing the efficiency of an iodine adsorber. The device includes: a support frame 1, a blower mechanism 2, an air duct 3, and a control module 4. The blower mechanism 2 is mounted on the support frame 1. One end of the air duct 3 is connected to the air outlet of the blower mechanism 2, and the other end of the air duct 3 is detachably connected to the exhaust pipe of the iodine adsorber. The blower mechanism 2 delivers air to the iodine adsorber through the exhaust pipe for testing. The control module 4 is mounted on the support frame 1 and electrically connected to the blower mechanism 2 to control the air output of the blower mechanism 2.

[0030] This application uses a blower mechanism 2 mounted on a support frame 1. One end of the air duct 3 is connected to the air outlet of the blower mechanism 2, and the other end of the air duct 3 is detachably connected to the exhaust duct of the iodine adsorber. The blower mechanism 2 is used to deliver air to the iodine adsorber through the exhaust duct for testing. The control module 4 is set on the support frame 1 and electrically connected to the blower mechanism 2 to control the air volume of the blower mechanism 2. An interface is installed on the exhaust duct of the iodine adsorber, and a three-way switch is installed at the interface. Then, the other end of the duct 3 is detachably connected to the three-way switch, connecting the duct 3 to the exhaust duct of the iodine adsorber. Then, the blower mechanism 2 is activated through the control module 4. The blower mechanism 2 generates airflow, which is blown out from the air outlet and reaches the exhaust duct of the iodine adsorber through the duct 3, delivering airflow to the iodine adsorber for ventilation and filtration effect testing. During the test, tracer is injected upstream of the ETY system's high-efficiency filter and the iodine adsorber. Samples are taken simultaneously upstream and downstream. After sampling, the sample concentration is analyzed, and the filtration efficiency of the ETY system's high-efficiency filter and the iodine adsorber is finally obtained. Here, the external iodine adsorber efficiency test device serves to deliver the tracer, thereby avoiding the need to remove the expansion joint in front of the online fan, ensuring the availability of the atmospheric monitoring and emission system inside the containment, reducing the occurrence of dangerous accidents, improving the reliability of the containment, and enabling more convenient and stable iodine adsorber efficiency testing. This reduces labor intensity, improves test efficiency, reduces the cost and labor of each test, and facilitates operation.

[0031] The support frame 1 provides support for the blower mechanism 2, making it easier to move the blower mechanism 2, making the blower mechanism 2 more stable during operation, and the output wind force more stable and uniform.

[0032] Please see Figures 1 to 4 In some embodiments, the duct 3 includes: a flexible middle section 31, and a first flange 32 and a second flange 33 respectively disposed at both ends of the middle section 31. The first flange 32 is detachably connected to the blower mechanism 2, and the second flange 33 is detachably connected to the exhaust duct of the iodine adsorber.

[0033] This application utilizes a duct 3 comprising: a flexible central section 31, and a first flange 32 and a second flange 33 respectively disposed at both ends of the central section 31. The flexible central section 31 is bendable, suitable for a wider range of applications, facilitating operation and storage, making operation more convenient, and improving testing efficiency. The first flange 32 is detachably connected to the blower mechanism 2, and the second flange 33 is detachably connected to the exhaust duct of the iodine adsorber. The first flange 32 facilitates the replacement of the duct 3, allowing for the replacement with a longer or shorter duct depending on the actual usage environment. The detachable connection of the second flange 33 to the exhaust duct of the iodine adsorber enables rapid connection of the iodine adsorber efficiency testing device to the iodine adsorber's exhaust duct, improving the sealing between the duct 3 and the iodine adsorber's exhaust duct, avoiding wasted airflow, saving energy, and increasing testing efficiency.

[0034] Please see Figures 1 to 4 In some embodiments, the duct 3 also includes a plurality of support rings 34 spaced apart on the middle portion 31.

[0035] This application uses multiple support rings 34 spaced apart on the middle part 31 to provide support for the middle part 31 of the flexible structure, reducing the influence of external factors on the air duct 3 during the test, so that the air duct 3 can stably deliver the air blown by the blower mechanism 2 to the exhaust line of the iodine adsorber for a long time, thereby improving stability.

[0036] Please see Figures 1 to 4 In some embodiments, the support frame 1 includes a base 11, a support 12 and a shock-absorbing component 13. The support 12 is mounted on the base 11 via the shock-absorbing component 13, and the blower mechanism 2 is mounted on the support 12.

[0037] This application utilizes a support base 12 mounted on a base 11 via a shock-absorbing assembly 13. A blower mechanism 2 is mounted on the support base 12. The shock-absorbing assembly 13 separates the base 11 from the support base 12. Vibrations generated by the blower mechanism 2 during operation are first transmitted to the support base 12, then buffered by the shock-absorbing assembly 13 before reaching the base 11. This buffering of vibrations on the base 11 reduces its amplitude or frequency, allowing for more stable fixation of the base 11 and minimizing damage to the ground. This reduces testing costs and improves stability during testing.

[0038] Please see Figure 1 , Figure 5 and Figure 6In some embodiments, the shock-absorbing assembly 13 includes: a first housing 131, a second housing 132, an elastic element 133, and a limiting element 134. The first housing 131 is mounted on the base 11, and the second housing 132 is mounted on the support 12. The first housing 131 is fastened to the second housing 132, and a gap is provided between the first housing 131 and the second housing. The elastic element 133 is compressed and disposed between the first housing 131 and the second housing 132. The limiting element 134 is installed between the base 11 and the support 12 to limit the distance between the support 12 and the base 11.

[0039] This application utilizes a first housing 131 mounted on a base 11 and a second housing 132 mounted on a support 12. The first housing 131 is fastened to the second housing 132, with a gap between them. An elastic element 133 is compressed and positioned between the first housing 131 and the second housing 132. Vibrations generated during the operation of the blower mechanism 2 are transmitted to the second housing 132, buffered by the elastic element 133, and then transferred back to the first housing 131, thereby reducing the amplitude or frequency of vibration transmitted to the base 11 and improving stability during testing. The fastening of the first housing 131 to the second housing 132 provides some protection for the internal elastic element 133, extending its service life and preventing accidental injury to surrounding personnel due to the elastic element 133's movement, thus improving safety.

[0040] This application uses a limiting member 134 installed between the base 11 and the support 12 to limit the distance between the support 12 and the base 11. The limiting member 134 has a gap in the horizontal direction between itself and both the base 11 and the support 12, allowing the base 11 and the support 12 to move horizontally. The limiting member 134 also limits the vertical movement of the base 11 and the support 12, preventing them from detaching and improving safety.

[0041] Please see Figure 1 , Figure 2 and Figure 4 In some embodiments, the support frame 1 further includes a plurality of rollers 14 mounted on the base 11, and a handle 15 disposed on the base 11 or the support 12.

[0042] This application utilizes multiple rollers 14 mounted on the base 11 to facilitate the movement of the special device for testing the efficiency of the iodine adsorber. The rollers 14 can be omnidirectional wheels or directional wheels, or they can be omnidirectional wheels at the front and directional wheels at the rear, which facilitates stable testing after movement. Brakes can be installed on the omnidirectional wheels or directional wheels to further improve the stability during testing.

[0043] This application uses a handle 15 set on the base 11 or support 12. The handle 15 makes it easier for staff to move the special device for testing the efficiency of the iodine adsorber, making it easier and more convenient to move and improving the efficiency of the test.

[0044] Please see Figure 1 , Figure 2 and Figure 4 In some embodiments, the blower mechanism 2 includes: a volute 21, a motor 22 and a fan wheel 23. The volute 21 and the motor 22 are both mounted on the support base 12. The fan wheel 23 is rotatably connected in the volute 21 and connected to the output end of the motor 22.

[0045] This application utilizes a volute 21 and a motor 22, both mounted on a support base 12. A fan 23 is rotatably connected within the volute 21 and connected to the output end of the motor 22. The motor 22 is electrically connected to a control module 4 to control its output speed, thereby controlling the airflow of the blower mechanism 2. The fan 23 provides stable airflow, and the volute 21 design concentrates airflow at the outlet, minimizing energy waste. The entire blower mechanism 2 has a simple structure, is less prone to damage, and has a longer service life.

[0046] Please see Figure 1 and Figure 4 In some embodiments, the blower mechanism 2 further includes a coupling 24 and a sealing cover 25. The sealing cover 25 is disposed on the support base 12. The coupling 24 is rotatably connected in the sealing cover 25. One end passes through the sealing cover 25 and is connected to the impeller 23, and the other end passes through the sealing cover 25 and is connected to the output end of the motor 22. Lubricating oil is disposed inside the sealing cover 25.

[0047] This application uses a sealing cover 25 mounted on a support base 12. A coupling 24 is rotatably connected within the sealing cover 25, with one end passing through the sealing cover 25 and connected to the impeller 23, and the other end passing through the sealing cover 25 and connected to the output end of the motor 22. Lubricating oil is provided inside the sealing cover 25. The lubricating oil reduces wear on the coupling 24, cools it, and allows the coupling 24 to stably transmit the torque provided by the motor 22 to the impeller 23, improving the stability and accuracy of the experiment.

[0048] Please see Figure 1 and Figure 4 In some embodiments, the blower mechanism 2 further includes a filter 26 disposed at the air inlet of the volute 21.

[0049] This application utilizes a filter 26 installed at the air inlet of the volute 21 to filter out impurities in the air, thus avoiding affecting the accuracy of the iodine adsorber efficiency test. It also prevents impurities from entering the volute 21 and damaging the impeller 23, thereby extending the service life and improving the accuracy of the test.

[0050] Please see Figure 1 , Figure 2 and Figure 4 In some embodiments, the special device for testing the efficiency of the iodine adsorber also includes a flow monitoring instrument 5 installed at the air outlet of the volute 21.

[0051] This application uses a flow monitoring instrument 5 installed at the air outlet of the volute 21. The flow monitoring instrument 5 can monitor the air volume of the blower mechanism 2 in real time, which facilitates the comparison of tests, improves the accuracy of tests, and reduces labor intensity.

[0052] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A special device for testing the efficiency of an iodine adsorber, characterized in that, include: The support frame (1), the blower mechanism (2), the air duct (3), and the control module (4) are included. The blower mechanism (2) is mounted on the support frame (1); One end of the air duct (3) is connected to the air outlet of the blower mechanism (2), and the other end of the air duct (3) is detachably connected to the exhaust duct of the iodine adsorber. The blower mechanism (2) is used to deliver air to the iodine adsorber through the exhaust duct for testing. The control module (4) is mounted on the support frame (1) and electrically connected to the blower mechanism (2) to control the air volume of the blower mechanism (2).

2. The device for testing the efficiency of an iodine adsorber according to claim 1, characterized in that The duct (3) includes: a flexible middle section (31), and a first flange (32) and a second flange (33) respectively disposed at both ends of the middle section (31). The first flange (32) is detachably connected to the blower mechanism (2), and the second flange (33) is detachably connected to the exhaust duct of the iodine adsorber.

3. The special device for testing the efficiency of an iodine adsorber according to claim 2, characterized in that, The duct (3) also includes a plurality of support rings (34) spaced apart on the middle part (31).

4. The iodine sorber efficiency test fixture of claim 1, wherein, The support frame (1) includes: a base (11), a support seat (12) and a shock absorption component (13). The support seat (12) is mounted on the base (11) via the shock absorption component (13), and the blower mechanism (2) is mounted on the support seat (12).

5. The iodine sorber efficiency test apparatus of claim 4, wherein, The shock absorption assembly (13) includes: a first housing (131), a second housing (132), an elastic element (133), and a limiting element (134). The first housing (131) is mounted on the base (11), and the second housing (132) is mounted on the support (12). The first housing (131) is fastened to the second housing (132), and a gap is provided between the first housing (131) and the second housing. The elastic element (133) is compressed and disposed between the first housing (131) and the second housing (132). The limiting member (134) is installed between the base (11) and the support (12) to limit the distance between the support (12) and the base (11).

6. The iodine sorber efficiency test apparatus of claim 4, wherein, The support frame (1) also includes a plurality of rollers (14) mounted on the base (11) and a handle (15) disposed on the base (11) or the support (12).

7. The iodine sorber efficiency test apparatus of claim 4, wherein, The blower mechanism (2) includes: a volute (21), a motor (22) and a fan (23). The volute (21) and the motor (22) are both mounted on the support base (12). The fan (23) is rotatably connected in the volute (21) and connected to the output end of the motor (22).

8. The device for testing the efficiency of an iodine adsorber according to claim 7, characterized in that The blower mechanism (2) further includes a coupling (24) and a sealing cover (25). The sealing cover (25) is disposed on the support base (12). The coupling (24) is rotatably connected in the sealing cover (25). One end passes through the sealing cover (25) and is connected to the impeller (23). The other end passes through the sealing cover (25) and is connected to the output end of the motor (22). Lubricating oil is disposed inside the sealing cover (25).

9. The iodine sorber efficiency test fixture of claim 7, wherein, The blower mechanism (2) also includes a filter (26) disposed at the air inlet of the volute (21).

10. The special device for testing the efficiency of an iodine adsorber according to claim 7, characterized in that, The special device for testing the efficiency of the iodine adsorber also includes a flow monitoring instrument (5) installed at the air outlet of the volute (21).

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