Measuring device for measuring total alpha and total beta in water on line

Abstract

The utility model relates to the technical field of radiation detection and radiation environment monitoring, in particular to a measuring device for measuring total alpha and total beta in water on line, which comprises a base and an auxiliary structure, the auxiliary structure is arranged on the outer side above the base, and the auxiliary structure further comprises a shielding shell, a limiting assembly and a sliding assembly. A person moves guide blocks on the two sides to move in the direction of a connecting rod, the guide blocks drive the connecting rod to move in the direction away from a connecting block, the connecting rod drives a clamping block to be separated from a positioning block and the connecting block, and then shielding shells on the two sides are moved to move in the direction away from a base; the shielding shells drive the sliding rods to move along the sleeve rods through the fixing blocks, and meanwhile the shielding shells move along the sliding blocks, so that the shielding shells on the two sides are unfolded, personnel can conveniently maintain the internal measurement assembly, and the operation space for the personnel to maintain the measurement assembly is increased through the mode; and personnel can more conveniently maintain the device for measuring the total alpha and the total beta in the water on line.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of radiation detection and radiation environment monitoring, in particular to a kind of measurement device of online measurement total α in water, total β. BACKGROUND

[0002] There is no real-time monitoring equipment for the radioactivity of tap water and sewage near the nuclear medicine department and radiotherapy department of large hospitals, which cannot assess the discharge of radioactive metabolites of patients and the impact of rays generated by accelerators on the environment. Therefore, it is particularly important to know the radioactivity level of China's offshore waters in real time.

[0003] For example, a water body total α, total β radioactivity online automatic monitoring device with the authorization announcement number CN216485531U, the above file uses immersion type direct measurement and α particle and β particle simultaneous online measurement mode through array type thin plastic scintillator detector, sample preparation process is simple, meets the demand of online rapid monitoring, however, the existing water body total α, total β radioactivity online automatic monitoring device is easily attached with impurities in water on the outer wall of measuring assembly during long-term use, which causes the light guide material of measuring assembly to be shielded, so that the detection result is easily affected, and the above file usually maintains measuring assembly through the cover plate arranged on the upper side of shielding shell, and the internal space of shielding shell is relatively small and is integrally formed with base, so that it is inconvenient for personnel to maintain. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of inconvenient maintenance of the device in the prior art, and provides a measurement device for online measurement of total α and total β in water.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A measurement device for online measurement of total α and total β in water is designed, which comprises a base and an auxiliary structure. The upper outer side of the base is provided with an auxiliary structure. The auxiliary structure further comprises a shielding shell, a limiting assembly and a sliding assembly.

[0007] The shielding shells on both sides are arranged on both sides of the base, and the end portions of the shielding shells on both sides are attached. The limiting assemblies on both sides are arranged on both sides of the shielding shells on both sides. The inner side of the shielding shell is provided with a sliding assembly.

[0008] Preferably, the inner walls of the shielding shells are respectively provided with guide grooves, and the guide grooves on both sides are mirror image arranged.

[0009] The side of the shielding shell adjacent to the base is attached to the base.

[0010] Preferably, the limiting assembly comprises a connecting block, a positioning block, a connecting rod, a guide block, a connecting frame, a spring one and a spring two;

[0011] The end of the connecting block on both sides is fixedly connected with the shielding shell on one side, the middle of the connecting block is provided with the positioning block, and the end of the positioning block on both sides is fixedly connected with the shielding shell on the other side;

[0012] The side of the positioning block away from the connecting block is fixedly provided with the connecting frame, the connecting frame is provided with a plurality of connecting rods on both sides, and the connecting rods on both sides are mirror image arranged;

[0013] Both ends of the spring one are fixedly connected with the connecting frame and the connecting rod respectively, the spring two is sleeved on the guide block, and both ends of the spring two are fixedly connected with the guide block and the connecting frame respectively;

[0014] The middle of the connecting frame is provided with the guide block, and the side of the guide block away from the connecting frame is attached to the connecting rods on both sides.

[0015] Preferably, the side of the connecting block adjacent to the positioning block is provided with a connecting groove, the connecting groove is provided with a connecting hole on both sides respectively, and the axis of the connecting holes on both sides is on the same axis;

[0016] The shape of the connecting groove is the same as that of the positioning block, and the connecting groove can match the positioning block;

[0017] The side of the positioning block adjacent to the connecting block is provided with a plurality of positioning holes, and the axis of the positioning holes is on the same axis as the axis of the connecting holes;

[0018] The side of the connecting rod adjacent to the connecting block is provided with a clamping block, the outer diameter of the clamping block is the same as the inner diameter of the positioning hole and the connecting hole, and the clamping block can match the positioning hole and the connecting hole;

[0019] The side of the connecting rod adjacent to the positioning block is provided with a sliding groove, the sliding grooves of the connecting rods on both sides match the connecting frame, and the spring one is arranged in the sliding groove;

[0020] The side of the connecting frame adjacent to the guide block is provided with a sliding hole, the inner diameter of the sliding hole is the same as the outer diameter of the side of the guide block away from the connecting rod, and the side of the guide block away from the connecting rod can match the sliding hole.

[0021] Preferably, the sliding assembly comprises a fixed block, a sliding rod, a sleeve rod and a sliding block;

[0022] The outer ends of the fixing blocks on both sides are fixedly connected with the shielding shell, the end of the fixing block is fixedly connected with the sliding rod, the outer walls of the sliding rods on both sides are sleeved with the sleeve rods, and one side of the fixing block adjacent to the shielding shell is fixedly provided with a sliding block.

[0023] Preferably, the shape of the sliding block is same as that of the guide groove, and the sliding block can match the guide groove.

[0024] Preferably, the end of the sleeve rod on both sides is fixedly connected with the water storage tank, the end of the water storage tank is fixedly connected with the base, and the water outlet end of the water storage tank penetrates through the base and is fixedly arranged in the middle of the base.

[0025] Preferably, the middle of the water storage tank is fixedly provided with a detection tank, and the water outlet end of the detection tank is arranged in the inside of the water storage tank, and the water in the inside of the detection tank can enter the inside of the water storage tank.

[0026] One side of the detection tank is provided with a connecting pipe, and the extension end of the connecting pipe penetrates through one side of the shielding shell.

[0027] The middle of the detection tank is provided with a measuring assembly.

[0028] The utility model provides a kind of measuring device for measuring total alpha and total beta in water on line, and beneficial effect lies in: personnel moves the direction of connecting rod by two sides moving guide block, guide block drives connecting rod to move in the direction of far from connecting block, so that connecting rod drives clamping block and positioning block and connecting block separate, then the direction of far from base is moved by moving two sides shielding shell, so that shielding shell drives sliding rod to move along sleeve rod by fixed block, simultaneously shielding shell moves along sliding block, so that two sides shielding shell are unfolded, it is convenient for personnel to maintain internal measuring assembly, and the operation space of personnel to maintain measuring assembly is increased by this way, and personnel is more convenient to maintain the measuring device for measuring total alpha and total beta in water on line. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is structure schematic diagram of the utility model;

[0030] Figure 2 It is structure exploded schematic diagram of shielding shell of the utility model;

[0031] Figure 3 It is Figure 2 Structure schematic diagram of A in it;

[0032] Figure 4 It is structure exploded schematic diagram of limiting component in the utility model;

[0033] Figure 5 It is overhead sectional structure schematic diagram in the utility model;

[0034] Figure 6 It is a schematic diagram of the partial structural decomposition of the shielding shell and the sliding assembly in the present invention.

[0035] In the figure: 1. Base; 2. Shielding shell; 201. Guide groove; 3. Limiting assembly; 301. Connecting block; 3011. Connecting groove; 3012. Connecting hole; 302. Positioning block; 3021. Positioning hole; 303. Connecting rod; 3031. Block; 3032. Slide groove; 304. Guide block; 305. Connecting frame; 3051. Slide hole; 306. Spring 1; 307. Spring 2; 4. Sliding assembly; 401. Fixed block; 402. Slide rod; 403. Sleeve rod; 404. Slider; 5. Measuring assembly; 6. Detection box; 601. Connecting pipe; 7. Water tank. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] This embodiment proposes an online measuring device for measuring total α and total β in water, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , including a base 1 and an auxiliary structure, an auxiliary structure is provided on the upper outer side of the base 1, wherein the auxiliary structure also includes a shielding shell 2, a limiting component 3 and a sliding component 4, the sliding component 4 is used to support and guide the sliding of the shielding shells 2 on both sides, the limiting component 3 is used to limit the shielding shells 2 on both sides, the shielding shells 2 on both sides are arranged on both sides of the base 1, and the ends of the shielding shells 2 on both sides are in contact with each other, the limiting components 3 on both sides are respectively provided on both sides of the shielding shells 2 on both sides, and the sliding component 4 is provided on the inner side of the shielding shells 2.

[0038] The inner wall of the shielding shell 2 is respectively provided with a guide groove 201 , and the guide grooves 201 on both sides are arranged in a mirror image. The sides of the shielding shells 2 on both sides adjacent to the base 1 are both in contact with the base 1 .

[0039] The limiting assembly 3 comprises a connecting block 301, a positioning block 302, a connecting rod 303, a guide block 304, a connecting frame 305, a spring 306 and a spring 307. The end portions of the two connecting blocks 301 are fixedly connected with the shielding shell 2 on one side. The middle portion of the connecting block 301 is provided with the positioning block 302. The end portions of the two positioning blocks 302 are fixedly connected with the shielding shell 2 on the other side. The side, away from the connecting block 301, of the positioning block 302 is fixedly provided with the connecting frame 305. The two sides of the connecting frame 305 are provided with a plurality of connecting rods 303. The two connecting rods 303 are mirror image arranged. The two ends of the spring 306 are fixedly connected with the connecting frame 305 and the connecting rod 303 respectively. The spring 307 is sleeved on the guide block 304. The guide block 304 can slide along the sliding hole 3051 of the connecting frame 305. The side, adjacent to the connecting rod 303, of the guide block 304 is isosceles trapezoidal. The guide block 304 moves towards the connecting rod 303. The guide block 304 can drive the two connecting rods 303 to move away from the guide block 304. At the same time, the guide block 304 can drive the spring 307 to compress. The two ends of the spring 307 are fixedly connected with the guide block 304 and the connecting frame 305 respectively. The middle portion of the connecting frame 305 is provided with the guide block 304. The side, away from the connecting frame 305, of the guide block 304 is in close contact with the two connecting rods 303.

[0040] The connecting groove 3011 is arranged on one side of the connecting block 301 adjacent to the positioning block 302, the connecting holes 3012 are arranged on both sides of the connecting groove 3011, the connecting holes 3012 penetrate the connecting block 301, the axis of the connecting holes 3012 is on the same axis line, the shape of the connecting groove 3011 is the same as that of the positioning block 302, and the connecting groove 3011 can match the positioning block 302, the positioning holes 3021 are arranged on one side of the positioning block 302 adjacent to the connecting block 301, the axis of the positioning holes 3021 is on the same axis line as that of the connecting holes 3012, the clamping block 3031 is arranged on one side of the connecting rod 303 adjacent to the connecting block 301, the outer diameter of the clamping block 3031 is the same as the inner diameter of the positioning holes 3021 and the connecting holes 3012, and the clamping block 3031 can match the positioning holes 3021 and the connecting holes 3012, the sliding groove 3032 is arranged on one side of the connecting rod 303 adjacent to the positioning block 302, the sliding groove 3032 of the connecting rod 303 moves along the connecting frame 305, the connecting rod 303 drives the spring I 306 to compress, the connecting rod 303 drives the clamping block 3031 to move away from the connecting block 301, the clamping block 3031 is separated from the connecting holes 30125 and the positioning holes 3021, the restriction between the two shielding housings 2 is released, and personnel can move the two shielding housings 2 away from the base 1, the sliding grooves 3032 of the two connecting rods 303 match the connecting frame 305, the spring I 306 is arranged in the sliding groove 3032, the sliding hole 3051 is arranged on one side of the connecting frame 305 adjacent to the guide block 304, the inner diameter of the sliding hole 3051 is the same as the outer diameter of the side of the guide block 304 away from the connecting rod 303, and the side of the guide block 304 away from the connecting rod 303 can match the sliding hole 3051.

[0041] The sliding assembly 4 comprises a fixed block 401, a sliding rod 402, a sleeve rod 403 and a sliding block 404, the outer ends of the two fixed blocks 401 are fixedly connected with the shielding housing 2, the shielding housing 2 can drive the two fixed blocks 401 to move, the fixed block 401 can drive the sliding rod 402 to move along the sleeve rod 403, when the sliding rod 402 moves to the limit position, one end of the sliding rod 402 is still in the sleeve rod 403, at this time, the guide groove 201 of the shielding housing 2 can slide along the sliding block 404, so that the two shielding housings 2 continue to unfold, the end of the fixed block 401 is fixedly connected with the sliding rod 402, the outer walls of the two sliding rods 402 are sleeved with the sleeve rod 403, the fixed block 401 is fixedly provided with the sliding block 404 on one side adjacent to the shielding housing 2, the shape of the sliding block 404 is the same as that of the guide groove 201, and the sliding block 404 can match the guide groove 201.

[0042] The end of the sleeve rod 403 on both sides is fixedly connected with the water storage tank 7, the end of the water storage tank 7 is fixedly connected with the base 1, and the water outlet end of the water storage tank 7 penetrates through the base 1 and is fixedly arranged at the middle part of the base 1. The middle part of the water storage tank 7 is fixedly provided with a detection tank 6, and the water outlet end of the detection tank 6 is arranged in the inside of the water storage tank 7. The water in the inside of the detection tank 6 can enter the inside of the water storage tank 7. One side of the detection tank 6 is provided with a connecting pipe 601, and the extension end of the connecting pipe 601 penetrates through the shielding shell 2 on one side. The water to be detected enters the inside of the detection tank 6 through the connecting pipe 601. After the detection is completed through the detection tank 6, the water enters the inside of the water storage tank 7 through the valve at the bottom. The valve at the bottom of the water storage tank 7 discharges the water in the inside. The middle part of the detection tank 6 is provided with a measuring assembly 5. The measuring assembly 5 selects a plastic scintillator and a scintillator material detector. Since the maximum emission wavelength range of the plastic scintillator is 415 nm, and the spectral range is 280 nm-680 nm, the maximum emission wavelength range of the CsI(Tl) scintillator is 550 nm, and the spectral range is 50 nm-630 nm, therefore, the CR-185 photomultiplier tube of Beijing Binoshi is selected. The power supply and signal circuit of the photomultiplier tube is called a voltage dividing circuit. Since the size difference between the scintillator and the photomultiplier tube is large, in order to better realize the collection of scintillation light, it is necessary to select a light guide to realize the coupling of the two. The light guide material is PMMA material, and the light transmittance reaches 97%. After the PMMA material is cut, the cutting surface is polished by flame to improve the smoothness of the cutting surface and the light transmittance. The interface is bonded with epoxy resin, and the refractive index is similar to that of the plastic scintillator, which can reduce the reflection number of the light propagating to the surface of the scintillator. In addition, the light transmittance of the epoxy resin is high, and the bonding strength and self-foaming characteristics are beneficial to the light guide coupling agent.

[0043] Specifically, the personnel move the two sides of the moving guide block 304 towards the direction of the connecting rod 303, the guide block 304 drives the connecting rod 303 to move away from the connecting block 301, so that the connecting rod 303 drives the clamping block 3031 to separate from the positioning block 302 and the connecting block 301, then the two sides of the shielding shell 2 are moved away from the base 1, so that the shielding shell 2 drives the sliding rod 402 to move along the sleeve rod 403 through the fixed block 401, and the shielding shell 2 moves along the sliding block 404 at the same time, so that the two sides of the shielding shell 2 are unfolded, which is convenient for personnel to maintain the inside measuring assembly 5.

[0044] The two sides of the shielding shell 2 are combined and moved after the maintenance structure, and the connecting rod 303 is driven by the moving guide block 304 to move away from the guide block 304. When the connecting block 301 matches the positioning block 302, the guide block 304 is loosened, the spring one 306 drives the clamping block 3031 to match the connecting hole 3012 and the positioning hole 3021, and the spring two 307 drives the guide block 304 to reset, so that the two sides of the shielding shell 2 are fixed.

[0045] While the present application has been illustrated and described with reference to the preferred embodiments, it is to be understood that various changes in form and detail can be made therein without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A device for measuring total alpha and total beta in water on-line, characterized in that: The base and the auxiliary structure are provided with the auxiliary structure on the upper outer side of the base, wherein the auxiliary structure further comprises a shielding shell, a limiting assembly and a sliding assembly; The shielding shells are arranged on both sides of the base, and the end portions of the shielding shells on both sides are in abutment, and the limiting assemblies on both sides are arranged on both sides of the shielding shells, and the inner side of the shielding shell is provided with the sliding assembly.

2. The device for online measurement of total α and total β in water according to claim 1, characterized in that: The inner walls of the shielding shells are respectively provided with guide grooves, and the guide grooves on both sides are mirror image arranged; The shielding shells on both sides are in abutment with the base on one side adjacent to the base.

3. The device for measuring total α and total β in water on-line according to claim 1, characterized in that: The limiting assembly comprises a connecting block, a positioning block, a connecting rod, a guide block, a connecting frame, a spring one and a spring two; The end portions of the connecting blocks on both sides are fixedly connected with the shielding shells on one side, the middle portions of the connecting blocks are provided with the positioning blocks, and the end portions of the positioning blocks on both sides are fixedly connected with the shielding shells on the other side; The connecting frame is fixedly arranged on the side of the positioning block away from the connecting block, the connecting frame is provided with a plurality of connecting rods on both sides, and the connecting rods on both sides are mirror image arranged; The two ends of the spring one are fixedly connected with the connecting frame and the connecting rod respectively, the spring two is sleeved on the guide block, and the two ends of the spring two are fixedly connected with the guide block and the connecting frame respectively; The middle portion of the connecting frame is provided with the guide block, and the side of the guide block away from the connecting frame is in abutment with the connecting rods on both sides.

4. The device for measuring total α and total β in water on-line according to claim 3, characterized in that: The side of the connecting block adjacent to the positioning block is provided with a connecting groove, the connecting grooves on both sides are respectively provided with connecting holes, and the axis centers of the connecting holes on both sides are on the same axis; The shape of the connecting groove is the same as that of the positioning block, and the connecting groove can match the positioning block; The side of the positioning block adjacent to the connecting block is provided with a plurality of positioning holes, and the axis centers of the positioning holes and the connecting holes are on the same axis; The side of the connecting rod adjacent to the connecting block is provided with a clamping block, the outer diameter size of the clamping block is the same as the inner diameter size of the positioning hole and the connecting hole, and the clamping block can match the positioning hole and the connecting hole; The side of the connecting rod adjacent to the positioning block is provided with a sliding groove, the sliding grooves of the connecting rods on both sides match the connecting frame, and the spring one is arranged in the sliding groove; The side of the connecting frame adjacent to the guide block is provided with a sliding hole, the inner diameter size of the sliding hole is the same as the outer diameter size of the side of the guide block away from the connecting rod, and the side of the guide block away from the connecting rod can match the sliding hole.

5. The device for measuring total α and total β in water on-line according to claim 1, characterized in that: The sliding assembly comprises a fixed block, a sliding rod, a sleeve rod and a sliding block; The outer ends of the fixed blocks on both sides are fixedly connected with the shielding shell, the end portions of the fixed blocks are fixedly connected with the sliding rod, the outer walls of the sliding rods on both sides are sleeved with the sleeve rod, and the side of the fixed block adjacent to the shielding shell is fixedly provided with the sliding block.

6. The device for online measurement of total α and total β in water according to claim 5, characterized in that: The shape of the sliding block is the same as that of the guide groove, and the sliding block can match the guide groove.

7. The device for measuring total α and total β in water on-line according to claim 5, characterized in that: The end portions of the sleeve rods on both sides are fixedly connected with the water storage tank, the end portion of the water storage tank is fixedly connected with the base, and the water outlet end of the water storage tank penetrates through the base and is fixedly arranged in the middle portion of the base.

8. The device for measuring total α and total β in water on-line according to claim 7, characterized in that: The middle part of the water storage tank is fixedly provided with a detection tank, and the water outlet end of the detection tank is arranged in the inside of the water storage tank, and the water in the inside of the detection tank can enter the inside of the water storage tank; One side of the detection tank is provided with a connecting pipe, and the extension end of the connecting pipe penetrates the shielding shell on one side; The middle part of the detection tank is provided with a measuring assembly.

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