Radioactive waste liquid sampling and measuring device

Abstract

The utility model discloses a radioactive waste liquid sampling and measuring device, and relates to the technical field of radionuclides. The radioactive waste liquid sampling and measuring device comprises a sampling tube and further comprises a through hole formed in the bottom end of the sampling tube, a leather cushion is arranged below the through hole, and one end of the leather cushion is rotationally connected with one side of the outer wall of the through hole; the connecting port, the liquid inlet and the air inlet are formed in the outer wall of the upper part of the sampling pipe; electromagnetic valves are mounted on the connecting port, the liquid inlet and the air inlet; the input end of the suction pump is connected with the connecting port; according to the utility model, internal gas is pumped out through the suction pump, so that negative pressure is presented in the sampling tube, and liquid to be detected is pumped into the sampling tube through the liquid inlet; after sampling is finished, the suction pump is closed, the electromagnetic valve of the air inlet is opened, air pressure inside and outside the sampling tube is identical, and liquid gravity pushes the leather cushion to open the through hole in the bottom of the sampling tube to lead out the liquid.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of radionuclide technology, especially relates to a radioactive waste liquid sampling and measuring device. BACKGROUND

[0002] Radionuclide refers to unstable atomic nucleus, can spontaneously emit ray (such as alpha ray, beta ray and gamma ray), and forms stable nuclide by decay.These nuclides release energy in the decay process, and these energies are called decay energy, and the time required for decay to half of the original number is called decay half-life, and its range is very extensive, ranging from 1015 Year to 10-12 Second;

[0003] Water resources are closely related to people's life, and radionuclide detection needs to be carried out on water resources to avoid the influence of excessive radionuclide on physical health;

[0004] The problems of the traditional technology are that when sampling materials, sampling is usually carried out by artificial timing and fixed point, consumes manpower and affects efficiency, and after sampling, detection is carried out in turn, and the steps are troublesome. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems in the prior art and provides a radioactive waste liquid sampling and measuring device.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is that a radioactive waste liquid sampling and measuring device includes a sampling tube, further includes: a through hole formed in the bottom end of the sampling tube, a leather pad is arranged below the through hole, and one end of the leather pad is rotatably connected to one side of the outer wall of the through hole;A connecting port, a liquid inlet and an air inlet are formed in the upper outer wall of the sampling tube, and an electromagnetic valve is installed on each of the connecting port, the liquid inlet and the air inlet;And a suction pump, the input end of the suction pump is connected with the connecting port;

[0007] When sampling, the suction pump is opened to make the sampling tube present negative pressure, and the liquid to be detected is sucked in, and the leather pad is attached to the bottom through hole of the sampling tube;

[0008] After sampling, the suction pump is closed, and the electromagnetic valve of the air inlet is opened to make the air pressure in the sampling tube same with the outside, and the liquid gravity pushes the leather pad to open the bottom through hole of the sampling tube, and the liquid is discharged;

[0009] Preferably, a tension spring for resetting is connected to the leather pad, the top end of the tension spring is connected with a horizontal plate, and the horizontal plate is fixedly installed on the inner wall of the sampling tube.

[0010] Preferably, the inner wall of the sampling tube is provided with a fixed frame, the inner wall of the fixed frame is slidably connected with a micro air bag, the bottom end of the fixed frame is provided with an opening, the diameter of the opening is smaller than that of the micro air bag, and the top end of the inner wall of the fixed frame is provided with a position sensor.

[0011] Preferably, the bottom of the sampling tube is fixedly provided with a water collecting frame, and the bottom end of the water collecting frame is connected with a drain pipe.

[0012] Preferably, the outer wall of the sampling tube is connected with a shell, and the inner wall bottom end of the shell is fixedly connected with a support frame.

[0013] Preferably, the bottom end of the support frame is provided with a motor, and the output end of the motor is connected with a rotating frame.

[0014] Preferably, the rotating frame is provided with a placing groove, and the outer wall of the sampling tube is slidably connected with the placing groove.

[0015] Preferably, the outer wall of the sampling tube is fixedly connected with an annular plate, and the diameter of the annular plate is greater than that of the placing groove.

[0016] After the above technical scheme is adopted, the present application has the following beneficial effects compared with the prior art:

[0017] 1. The radioactive waste liquid sampling and measuring device, by the suction pump, the gas in the sampling tube is extracted, so that the sampling tube is in negative pressure, and the liquid is pumped into the sampling tube through the liquid inlet; after sampling, the electromagnetic valve of the air inlet is opened to make the air pressure in and outside the sampling tube the same, and the liquid gravity pushes the rubber pad to open the through hole at the bottom of the sampling tube to guide the liquid out.

[0018] 2. The radioactive waste liquid sampling and measuring device, by the liquid being pumped into the sampling tube through the liquid inlet, the liquid entering the sampling tube will make the micro air bag float up, and when the top end of the micro air bag contacts the position sensor, feedback is sent out, so that the quantity is determined and the use efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In the drawings:

[0020] Figure 1 It is a front view of the radioactive waste liquid sampling and measuring device provided by the present application;

[0021] Figure 2 It is an internal view of the radioactive waste liquid sampling and measuring device provided by the present application;

[0022] Figure 3 It is a sampling tube bottom view of the radioactive waste liquid sampling and measuring device provided by the present application;

[0023] Figure 4The utility model provides a kind of radioactive waste liquid sampling measuring device's sampling tube internal view;

[0024] Figure 5 The utility model provides a kind of radioactive waste liquid sampling measuring device's sampling tube sectional view.

[0025] In the drawing: 1, sampling tube;101, connecting port;102, liquid inlet;103, gas inlet;104, electromagnetic valve;201, suction pump;202, skin pad;203, rubber ring;204, cross plate;205, tension spring;301, fixed frame;302, micro air bag;303, vertical slot;304, sliding plate;402, water collecting frame;403, drain pipe;501, sampling tube;502, annular plate;503, motor;504, rotating frame;505, placing groove;506, spectrometer;507, spectrum sensor;6, shell;7, support frame. DETAILED DESCRIPTION

[0026] The utility model makes further detailed description in combination with the drawing and embodiment, to enable the person skilled in the art to implement according to the description text.

[0027] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0028] In the description of the utility model, the orientation or positional relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model.

[0029] Example one: refer to Figures 1-5 A radioactive waste liquid sampling measuring device, comprising a sampling tube 1, further comprising: a through hole opened at the bottom end of the sampling tube 1, a skin pad 202 is arranged below the through hole, one end of the skin pad 202 is rotatably connected with one side of the outer wall of the through hole;Connecting port 101, liquid inlet 102 and gas inlet 103 are opened on the upper outer wall of the sampling tube 1, electromagnetic valve 104 is installed on connecting port 101, liquid inlet 102 and gas inlet 103;And suction pump 201, the input end of the suction pump 201 is connected with connecting port 101;

[0030] Working principle: when sampling, open the electromagnetic valve 104 on the connecting port 101, the electromagnetic valve 104 on the liquid inlet 102 and the suction pump 201, the suction pump 201 communicates with the inside of the sampling tube 1 through the connecting port 101, the gas inside is extracted, the negative pressure is generated in the sampling tube 1, at this time, the skin pad 202 is attached to the bottom hole of the sampling tube 1 under the influence of the negative pressure, and the liquid to be detected is extracted into the sampling tube 1 through the liquid inlet 102;

[0031] After sampling, the electromagnetic valve 104 on the connecting port 101 and the electromagnetic valve 104 on the liquid inlet 102 are closed, the electromagnetic valve 104 of the air inlet 103 is opened, the air pressure inside and outside the sampling tube 1 is the same, the skin pad 202 is opened by the liquid gravity to open the bottom hole of the sampling tube 1, and the liquid is guided out;

[0032] In the above scheme: the skin pad 202 is difficult to reset after being separated from the bottom hole of the sampling tube 1, for this purpose, the tension spring 205 is arranged, under the condition that there is no gravity above the skin pad 202, the tension of the tension spring 205 is only enough to pull the skin pad 202 to attach to the bottom of the hole, the smallest angle between the skin pad 202 and the bottom of the sampling tube 1 is 20 degrees, the bottom of the tension spring 205 is connected to the skin pad 202, and the top end of the tension spring 205 is connected with the horizontal plate 204, the horizontal plate 204 is fixedly installed on the inner wall of the sampling tube 1, and the top end of the skin pad 202 is provided with the rubber ring 203;

[0033] In use, when sampling, the electromagnetic valve 104 on the connecting port 101, the electromagnetic valve 104 on the liquid inlet 102 and the suction pump 201 are opened, the suction pump 201 communicates with the inside of the sampling tube 1 through the connecting port 101, the gas inside is extracted, the negative pressure is generated in the sampling tube 1, at this time, the skin pad 202 is attached to the bottom hole of the sampling tube 1 under the influence of the negative pressure, and the liquid to be detected is extracted into the sampling tube 1 through the liquid inlet 102;

[0034] After sampling, the electromagnetic valve 104 on the connecting port 101 and the electromagnetic valve 104 on the liquid inlet 102 are closed, the electromagnetic valve 104 of the air inlet 103 is opened, the air pressure inside and outside the sampling tube 1 is the same, the skin pad 202 is opened by the liquid gravity to open the bottom hole of the sampling tube 1, and the liquid is guided out, after the liquid is guided out, the tension spring 205 for resetting pulls the skin pad 202 to reset, at this time, there may be a gap between the skin pad 202 and the bottom of the sampling tube 1, but after the suction pump 201 is opened, the negative pressure makes the skin pad 202 more closely attached to the bottom of the sampling tube 1;

[0035] The problem with the above solution is that there is no container for automatically receiving the sampled material after it is exported. Therefore, the outer wall of the sampling tube 1 is connected to the shell 6, the bottom of the inner wall of the shell 6 is fixedly connected to the support frame 7, the bottom of the support frame 7 is installed with the motor 503, the output end of the motor 503 is connected to the rotating frame 504, the rotating frame 504 is provided with a placement groove 505, the inner wall of the placement groove 505 is slidably connected to the sampling tube 501, the outer wall of the sampling tube 501 is fixedly connected to the annular plate 502, the diameter of the annular plate 502 is larger than the diameter of the placement groove 505, the bottom of the sampling tube 1 is fixedly installed with a water collection frame 402, and the bottom of the water collection frame 402 is connected to the drain pipe 403.

[0036] When in use, place the sampling tube 501 on the rotating frame 504. The extracted liquid is introduced into the sampling tube 501 through the water collection frame 402 and the drain pipe 403. The rotating frame 504 is rotated by controlling the motor 503 to replace the sampling tube 501.

[0037] The problem with the above solution is that it is impossible to quantify the sampled liquid. To address this, a fixed frame 301 is installed on the inner wall of the sampling tube 1. A micro airbag 302 is slidably connected to the inner wall of the fixed frame 301. An opening is provided at the bottom of the fixed frame 301, and the diameter of the opening is smaller than the diameter of the micro airbag 302. A position sensor is installed at the top of the inner wall of the fixed frame 301. A vertical groove 303 is provided on the inner wall of the fixed frame 301. Slide plates 304 are fixedly connected to both sides of the outer wall of the micro airbag 302. The slide plates 304 are slidably connected to the inner wall of the vertical groove 303.

[0038] In use, open the solenoid valve 104 on the connection port 101, the solenoid valve 104 on the liquid inlet 102, and the suction pump 201. The suction pump 201 is connected to the inside of the sampling tube 1 through the connection port 101, and draws out the gas inside, so that the sampling tube 1 has a negative pressure. At this time, under the influence of the negative pressure, the pad 202 is attached to the bottom through hole of the sampling tube 1. At the same time, the liquid to be tested is drawn into the sampling tube 1 through the liquid inlet 102. After the liquid enters the sampling tube 1, it will cause the micro airbag 302 to float up. When the top of the micro airbag 302 contacts the position sensor, it will send a feedback.

[0039] Close the suction pump 201 and the solenoid valve 104 on the connection port 101 and the solenoid valve 104 on the liquid inlet 102, open the solenoid valve 104 on the air inlet 103 so that the air pressure inside and outside the sampling tube 1 is the same, and the liquid gravity pushes the pad 202 to open the bottom hole of the sampling tube 1 and drain the liquid.

[0040] Example 2: Refer to Figures 1-5 A spectral sensor 507 is installed inside the sampling tube 1, and a spectrometer 506 is fixedly installed at the top of the housing 6. The spectrometer 506 is connected to the spectral sensor 507.

[0041] Open the solenoid valve 104 on the connection port 101, the solenoid valve 104 on the liquid inlet 102, and the suction pump 201. The suction pump 201 is connected to the inside of the sampling tube 1 through the connection port 101, and extracts the gas inside the tube, making the sampling tube 1 negative pressure. At this time, under the influence of the negative pressure, the pad 202 is attached to the bottom through hole of the sampling tube 1. At the same time, the liquid to be tested is drawn into the sampling tube 1 through the liquid inlet 102. After the liquid enters the sampling tube 1, it will cause the micro airbag 302 to float up. When the top of the micro airbag 302 contacts the position sensor, it will send a feedback.

[0042] The suction pump 201 is turned off, and the parameters in the liquid are imported into the spectrometer 506 through the spectral sensor 507. The nuclide parameters in the liquid are detected by comparing the data parameter ripple pattern with the parameters stored in the spectrometer 506. After the detection is completed, the solenoid valve 104 on the connection port 101 and the solenoid valve 104 on the liquid inlet 102 are opened, and the solenoid valve 104 on the air inlet 103 is opened to make the air pressure inside and outside the sampling tube 1 the same. The liquid gravity pushes the pad 202 to open the through hole at the bottom of the sampling tube 1 and drain the liquid.

[0043] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A radioactive waste liquid sampling and measuring device, comprising a sampling tube (1), characterized in that, Also includes: A through hole is opened at the bottom of the sampling tube (1), and a leather pad (202) is provided below the through hole. One end of the leather pad (202) is rotatably connected to one side of the outer wall of the through hole. A connection port (101), a liquid inlet (102), and an air inlet (103) are provided on the outer wall above the sampling tube (1). A solenoid valve (104) is installed on each of the connection port (101), the liquid inlet (102), and the air inlet (103). And a suction pump (201), the input end of which is connected to a connector (101); When sampling, the suction pump (201) is turned on to create a negative pressure inside the sampling tube (1) to draw in the liquid to be tested, while the pad (202) is attached to the bottom hole of the sampling tube (1); After sampling, the suction pump (201) is turned off and the solenoid valve (104) of the air inlet (103) is opened so that the air pressure inside and outside the sampling tube (1) is the same. The liquid gravity pushes the pad (202) to open the bottom hole of the sampling tube (1) and drain the liquid.

2. The radioactive waste liquid sampling and measuring device according to claim 1, characterized in that, The pad (202) is connected to a tension spring (205) for resetting. The top of the tension spring (205) is connected to a horizontal plate (204), which is fixedly installed on the inner wall of the sampling tube (1).

3. The radioactive waste liquid sampling and measuring device according to claim 2, characterized in that, The sampling tube (1) has a fixed frame (301) installed on its inner wall. A micro airbag (302) is slidably connected to the inner wall of the fixed frame (301). The bottom end of the fixed frame (301) has an opening with a diameter smaller than that of the micro airbag (302). A position sensor is installed on the top of the inner wall of the fixed frame (301).

4. The radioactive waste liquid sampling and measuring device according to claim 3, characterized in that, A water collection frame (402) is fixedly installed at the bottom of the sampling tube (1), and a drain pipe (403) is connected to the bottom end of the water collection frame (402).

5. The radioactive waste liquid sampling and measuring device according to claim 4, characterized in that, The outer wall of the sampling tube (1) is connected to a shell (6), and the bottom of the inner wall of the shell (6) is fixedly connected to a support frame (7).

6. The radioactive waste liquid sampling and measuring device according to claim 5, characterized in that, A motor (503) is installed at the bottom of the support frame (7), and the output end of the motor (503) is connected to a rotating frame (504).

7. The radioactive waste liquid sampling and measuring device according to claim 6, characterized in that, The rotating frame (504) has a placement slot (505), and a sampling tube (501) is slidably connected to the inner wall of the placement slot (505).

8. The radioactive waste liquid sampling and measuring device according to claim 7, characterized in that, The outer wall of the sampling tube (501) is fixedly connected to an annular plate (502), the diameter of which is larger than the diameter of the placement groove (505).

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