Dose rate sensor mounting structure for purification device

Abstract

The utility model relates to a dose rate sensor mounting structure for a purification device, and belongs to the technical field of purification devices. Comprising a box body and a plurality of filtering units arranged in the box body, and further comprises a shielding base and a sensor body, the shielding base is fixedly installed on the outer wall of the box body, a through groove is formed in the end, corresponding to the box body, of the shielding base, and an installation hole communicated with the through groove is formed in the top of the shielding base; the sensor body is fixedly installed in the installation hole, and the bottom end of the sensor body is located in the through groove. According to the utility model, the problem that the dosage rate of the filter element cannot be automatically measured in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a dosage rate sensor installation structure for a purification device, belonging to the technical field of purification devices. Background Art

[0002] In nuclear power plants and nuclear chemical projects, the plant buildings of nuclear facilities are prone to breeding various bacteria and other harmful substances due to their airtightness. At the same time, there are usually radioactive elements in the plant buildings, which spread into the air, posing a direct threat to the life and health of people working in the plant buildings. Direct discharge will also cause serious pollution to the environment. Therefore, it is necessary to filter and purify the harmful substances produced. The purification device can not only filter harmful substances such as bacteria in the air, but also effectively filter radioactive particles, with a filtration efficiency of up to 99.99%. At present, the purification device is widely used in the ventilation systems of nuclear power plants and nuclear chemical industries and plays a key role.

[0003] However, the intelligence level of purification devices on the market at this stage is generally relatively backward, and the dose rate of the filter element in the radiation environment is also detected by manual handheld measuring instruments. This not only has high requirements for personnel, but also easily leads to inaccurate measurements. In particular, the radiation environment requires personnel to constantly go in and out for measurement, which is easy to cause radiation damage to the measuring personnel.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a dosage rate sensor installation structure for a purification device, which solves the problem in the prior art that the dosage rate of a filter element cannot be automatically measured.

[0006] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0007] A dose rate sensor installation structure for a purification device comprises a box body, a plurality of filter units arranged in the box body, a shielding seat and a sensor body, wherein the shielding seat is fixedly installed on the outer wall of the box body, a through groove is formed at one end of the shielding seat corresponding to the box body, a mounting hole connected to the through groove is formed at the top of the shielding seat, and the sensor body is fixedly installed in the mounting hole and the bottom end is located in the through groove.

[0008] The utility model is further configured as follows: a mounting ring is fixedly connected to one end of the outer peripheral wall of the shielding seat close to the box body, and the mounting ring is fixedly connected to the box body through a flange and bolts.

[0009] The utility model is further configured as follows: the through groove is in the shape of an expanded frustum.

[0010] The utility model is further configured as follows: the filter unit includes a pre-filter element and a secondary filter element arranged in sequence from top to bottom in the vertical direction, a plurality of the filter units are linearly and evenly arranged in the horizontal direction, and a sensor body and a shielding seat are provided on the outside of the box body corresponding to each of the pre-filter element and the secondary filter element.

[0011] The utility model is further configured as follows: the detection range of the sensor body corresponding to the pre-filter element in the vertical direction is a sector-shaped interval with an angle of 25°-30°, and the signal transmitting end of the sensor body corresponds to the midpoint of the height of the pre-filter element.

[0012] The utility model is further configured as follows: the detection range of the sensor body corresponding to the secondary filter element in the vertical direction is a sector-shaped interval with an angle of 58°-63°, and the signal transmitting end of the sensor body corresponds to the midpoint of the height of the secondary filter element.

[0013] The utility model is further configured as follows: the detection range of the sensor body in the horizontal direction is a sector-shaped interval with an angle of 80°-90°, and the signal transmitting end of the sensor body corresponds to the midpoint of the width of the pre-filter element or the secondary filter element.

[0014] The utility model is further configured as follows: the height of the pre-filter element is 45mm-55mm, the height of the secondary filter element is 280mm-300mm, and the distance between two adjacent sensor bodies in the vertical direction is 435mm-465mm.

[0015] The utility model is further configured as follows: the width of the pre-filter element and the secondary filter element is 550mm-650mm, and the distance between two adjacent sensor bodies in the horizontal direction is 750mm-850mm.

[0016] The utility model is further configured as follows: it also includes a controller fixedly installed on the box body, and the sensor bodies are electrically connected to the controller.

[0017] The beneficial effects of the utility model are:

[0018] 1. By setting up the sensor body, the dose rate of the accumulated radioactive substances in the pre-filter element and the secondary filter element can be accurately measured in the radioactive medium environment, so that the staff can record and analyze the data and accurately grasp the specific situation of the filter unit;

[0019] 2. By reasonably selecting the detection range and relative position of the sensor body, the dose rate in the pre-filter element and the secondary filter element can be measured more accurately and stably, reducing interference between sensor bodies and reducing abnormal data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the sensor body and the controller part in the utility model.

[0021] Figure 2 It is a partial cross-sectional view of the present utility model.

[0022] Figure 3 It is a partial cross-sectional view of the present utility model.

[0023] In the figure: 1. Box body; 2. Shielding seat; 3. Sensor body; 4. Controller; 5. Pre-filter element; 6. Secondary filter element; 7. Through groove; 8. Mounting hole; 9. Mounting ring; 10. Flange. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific illustrations.

[0025] like Figure 1-Figure 3 As shown, a dose rate sensor installation structure for a purification device includes a housing 1, a plurality of filter units arranged in the housing 1, a shielding seat 2, a sensor body 3 and a controller 4, wherein the filter unit includes a pre-filter element 5 and a secondary filter element 6 arranged in sequence from top to bottom in the vertical direction, and the plurality of filter units are uniformly arranged linearly in the horizontal direction, and a sensor body 3 and a shielding seat 2 are provided on the outside of the housing 1 corresponding to each pre-filter element 5 and secondary filter element 6.

[0026] The shielding seat 2 is fixedly mounted on the outer wall of the box body 1. A through slot 7 is provided at one end of the shielding seat 2 corresponding to the box body 1. The detection signal of the sensor spreads outward in a fan shape through the opening of the through slot 7, and the through slot 7 is in the shape of an expanded frustum. A mounting hole 8 connected to the through slot 7 is provided on the top of the shielding seat 2. The sensor body 3 is fixedly mounted in the mounting hole 8 and the bottom end is located in the through slot 7. The controller 4 is fixedly mounted on the outer wall of the box body 1, and the sensor body 3 is electrically connected to the controller 4.

[0027] In order to facilitate installation and removal of the sensor body 3 , a mounting ring 9 is fixedly connected to one end of the outer peripheral wall of the shielding seat 2 close to the box body 1 , and the mounting ring 9 is fixedly connected to the box body 1 through a flange 10 and bolts.

[0028] The height of the pre-filter element 5 is 45mm-55mm, preferably set to 50mm, the height of the secondary filter element 6 is 280mm-300mm, preferably set to 292mm, the width of the pre-filter element 5 and the secondary filter element 6 is 550mm-650mm, preferably set to 610mm, the distance between two adjacent sensor bodies 3 in the vertical direction is 435mm-465mm, preferably set to 450mm, and the distance between two adjacent sensor bodies 3 in the horizontal direction is 750mm-850mm, preferably set to 800mm.

[0029] The detection range of the sensor body 3 in the vertical direction corresponding to the pre-filter element 5 is a sector-shaped interval with an angle of 25°-30°, preferably set to 28°, and the signal emitting end of the sensor body 3 corresponds to the midpoint of the height of the pre-filter element 5. The detection range of the sensor body 3 in the vertical direction corresponding to the secondary filter element 6 is a sector-shaped interval with an angle of 58°-63°, preferably set to 61°, and the signal emitting end of the sensor body 3 corresponds to the midpoint of the height of the secondary filter element 6.

[0030] The detection range of the sensor body 3 in the horizontal direction is a sector-shaped interval with an angle of 80°-90°, preferably set to 84°, and the signal transmitting end of the sensor body 3 corresponds to the midpoint of the width of the pre-filter element 5 or the secondary filter element 6.

[0031] The implementation principle of the utility model is:

[0032] By setting up the sensor body 3, the dose rate of the accumulated radioactive substances in the pre-filter element 5 and the secondary filter element 6 can be accurately measured in a radioactive medium environment, so that the staff can record and analyze the data and accurately grasp the specific situation of the filter unit. By reasonably selecting the detection range and relative position of the sensor body 3, the dose rate in the pre-filter element 5 and the secondary filter element 6 can be measured more accurately and stably, reducing interference between the sensor bodies 3 and reducing abnormal data.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dose rate sensor installation structure for a purification device, comprising a housing (1), a plurality of filter units arranged in the housing (1), Features: It also comprises a shielding seat (2) and a sensor body (3), wherein the shielding seat (2) is fixedly mounted on the outer wall of the box body (1), a through slot (7) is provided at one end of the shielding seat (2) corresponding to the box body (1), a mounting hole (8) connected to the through slot (7) is provided at the top of the shielding seat (2), and the sensor body (3) is fixedly mounted in the mounting hole (8) and the bottom end is located in the through slot (7).

2. A dose rate sensor installation structure for a purification device according to claim 1, Features: A mounting ring (9) is fixedly connected to one end of the outer peripheral wall of the shielding seat (2) close to the box body (1), and the mounting ring (9) is fixedly connected to the box body (1) via a flange (10) and bolts.

3. A dose rate sensor installation structure for a purification device according to claim 1, Features: The through groove (7) is in the shape of an expanded frustum.

4. A dose rate sensor installation structure for a purification device according to claim 1, Features: The filter unit comprises a pre-filter element (5) and a secondary filter element (6) arranged in sequence from top to bottom in the vertical direction, and a plurality of the filter units are evenly arranged linearly in the horizontal direction. The outside of the housing (1) is provided with a sensor body (3) and a shielding seat (2) corresponding to each of the pre-filter element (5) and the secondary filter element (6).

5. A dose rate sensor installation structure for a purification device according to claim 4, Features: The detection range of the sensor body (3) corresponding to the pre-filter element (5) in the vertical direction is a sector-shaped interval with an angle of 25°-30°, and the signal transmitting end of the sensor body (3) corresponds to the midpoint of the height of the pre-filter element (5).

6. A dose rate sensor installation structure for a purification device according to claim 4, Features: The detection range of the sensor body (3) corresponding to the secondary filter element (6) in the vertical direction is a sector-shaped interval with an angle of 58°-63°, and the signal transmitting end of the sensor body (3) corresponds to the midpoint of the height of the secondary filter element (6).

7. A dose rate sensor installation structure for a purification device according to claim 4, Features: The detection range of the sensor body (3) in the horizontal direction is a sector-shaped interval with an angle of 80°-90°, and the signal transmitting end of the sensor body (3) corresponds to the midpoint of the width of the pre-filter element (5) or the secondary filter element (6).

8. A dosage rate sensor installation structure for a purification device according to claim 5, Features: The height of the pre-filter element (5) is 45 mm-55 mm, the height of the secondary filter element (6) is 280 mm-300 mm, and the distance between two adjacent sensor bodies (3) in the vertical direction is 435 mm-465 mm.

9. A dosage rate sensor installation structure for a purification device according to claim 4, Features: The width of the pre-filter element (5) and the secondary filter element (6) is 550 mm to 650 mm, and the distance between two adjacent sensor bodies (3) in the horizontal direction is 750 mm to 850 mm.

10. A dose rate sensor installation structure for a purification device according to claim 1, Features: It also includes a controller (4) fixedly mounted on the box (1), and the sensor bodies (3) are all electrically connected to the controller (4).

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