Kr-85 gas collecting mechanism

Abstract

The utility model relates to the technical field of gas collection, in particular to a Kr-85 gas collection mechanism which comprises a mounting frame, a lifting assembly, a mounting assembly, a guide assembly, a gas guide assembly and a vacuum assembly, the lifting assembly comprises a hydraulic cylinder, lifting rods, a connecting seat and a synchronous seat, the hydraulic cylinder is fixedly connected with the mounting frame and located on the outer side of the mounting frame, the two lifting rods are slidably connected with the hydraulic cylinder, penetrate through the hydraulic cylinder and the connecting seat respectively, are fixedly connected with the lifting rods and are located at the bottoms of the lifting rods, and the synchronous seat is fixedly connected with the connecting seat. The problems that the krypton-85 gas injection pipe cannot extend into the position close to the adsorption silica gel, the gas injection pipe can only be located at the bottle opening position, otherwise, when scintillation liquid is injected, the gas injection pipe can only be located at the bottle opening position, and the gas injection pipe can not extend into the position close to the adsorption silica gel are solved. And the gas injection pipe orifice is submerged and the pipe is frozen in the bottle.

Description

Technical Field

[0001] This utility model relates to the field of gas collection technology, and in particular to a Kr-85 gas collection mechanism. Background Technology

[0002] The radioactive inert gases in nuclear power plant exhaust are mainly isotopes of krypton (Kr) and xenon (Xe). These gases are mainly produced by the nuclear fuel fission reaction. When the fuel cladding is damaged or nuclear fuel is leaked, they will be released into the exhaust system. Although inert gases are chemically stable, their radioactivity may affect human health through inhalation or external irradiation. In particular, high-concentration releases require strict monitoring.

[0003] During normal operation of a nuclear power plant, changes in the concentration of the radioactive inert gas krypton-85 in the plant's exhaust gas are monitored to detect early signs of damage to the nuclear fuel cladding.

[0004] In existing technologies, the activity of krypton-85 is measured through processes such as low-temperature enrichment, separation, collection, and detection of waste gas. The collection process typically involves collecting the gas in a low-temperature environment, first into a bottle containing adsorbed silica gel, then injecting scintillation liquid and sealing the bottle. This collection method requires first creating a certain vacuum inside the bottle before injecting purified krypton-85 gas. This method has low collection efficiency and poor repeatability, and cannot meet the requirements for judging changes in krypton-85 concentration.

[0005] The reason for the low collection efficiency and poor repeatability is that the Krypton-85 gas injection tube cannot be inserted close to the adsorbed silica gel. The gas injection tube can only be at the bottle opening; otherwise, when adding scintillation liquid, the gas injection tube opening will be submerged and the tube will freeze in the bottle.

[0006] Therefore, the problem to be solved by the krypton-85 gas concentration detection device in nuclear power plants is how to achieve high collection efficiency and good repeatability. Utility Model Content

[0007] The purpose of this invention is to provide a Kr-85 gas collection mechanism, which solves the problem that the Kr-85 gas injection tube cannot be inserted close to the adsorbed silica gel. This is because the gas injection tube can only be at the bottle opening. Otherwise, when adding scintillation liquid, the gas injection tube opening will be submerged and the tube will be frozen in the bottle.

[0008] To achieve the above objectives, this utility model provides a Kr-85 gas collection mechanism, including a mounting frame, a lifting assembly, a mounting component, a guide assembly, a gas guiding assembly, and a vacuum assembly. The lifting assembly includes a hydraulic cylinder, a lifting rod, a connecting seat, and a synchronizing seat. The hydraulic cylinder is fixedly connected to the mounting frame and located outside the mounting frame. There are two lifting rods, each slidably connected to and passing through the hydraulic cylinder. The connecting seat is fixedly connected to the lifting rod and located at the bottom of the lifting rod. The synchronizing seat is fixedly connected to the connecting seat and located at the bottom of the synchronizing seat. The mounting assembly and the guide assembly are respectively connected to the synchronizing seat. The gas guiding assembly and the vacuum assembly are respectively connected to the mounting assembly.

[0009] The mounting assembly includes a support rod and a sealing seat. There are two support rods, each fixedly connected to the synchronization seat and located at the bottom of the synchronization seat. The sealing seat is fixedly connected to the support rod and located at the bottom of the support rod.

[0010] The mounting assembly further includes a sealing sleeve, which is fixedly connected to the sealing seat and located on top of the sealing seat.

[0011] The mounting assembly also includes a sealing gasket, which is detachably connected to the sealing seat and located at the bottom of the sealing seat.

[0012] The guiding assembly includes guide sliders and connecting rods. There are two guide sliders, which are slidably connected to the hydraulic cylinder and located outside the hydraulic cylinder. There are also two connecting rods, which are fixedly connected to the guide sliders and located outside the guide sliders.

[0013] The guiding assembly further includes a guiding cylinder and a guiding rod. The guiding cylinder is fixedly connected to the connecting rod and passes through the synchronizing seat. The guiding rod is slidably connected to the guiding cylinder and is located at the bottom of the guiding cylinder.

[0014] The guide assembly further includes a clamp, which is fixedly connected to the guide rod and located at the bottom of the guide rod.

[0015] The gas guiding assembly includes an injection pipe and a connecting block. The injection pipe is fixedly connected to the clamp and passes through the clamp. The connecting block is fixedly connected to the injection pipe and is located at the top of the injection pipe.

[0016] The air guiding assembly further includes an air guiding pipe, which is fixedly connected to the connecting block and located outside the connecting block.

[0017] The vacuum assembly includes a vacuum tube and a filling tube. The vacuum tube is fixedly connected to the sealing seat and passes through the sealing seat. The filling tube is fixedly connected to the sealing seat and passes through the sealing seat.

[0018] This utility model discloses a Kr-85 gas collection mechanism. The mounting bracket provides support for the device, the hydraulic cylinder controls the lifting rod, the lifting rod supports the connecting seat, the connecting seat supports the synchronization seat, and the synchronization seat controls the guide assembly. In use, the gas collecting bottle is placed below the sealing seat, and the hydraulic cylinder is controlled to extend the lifting rod, causing the connecting seat and synchronization seat to press down, thereby sealing the gas collecting bottle. After sealing,... An external vacuum device evacuates the gas collecting bottle to a vacuum state through the vacuum tube, injects scintillation liquid into the gas collecting bottle through the injection tube, and then pushes the guide rod to extend through the guide cylinder, causing the clamp and the injection tube to be pressed down, so that the injection tube is pressed into the gas collecting bottle, which facilitates the injection of Kr-85 gas into the gas collecting bottle. This solves the problem that the Kr-85 gas injection tube cannot be extended to a position close to the adsorbed silica gel, because the gas injection tube can only be at the bottle opening. Otherwise, when adding scintillation liquid, the gas injection tube opening will be submerged and the tube will be frozen in the bottle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the Kr-85 gas collection mechanism according to the first embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram of the lifting assembly of the first embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the installation assembly, air guiding assembly, and vacuum assembly of the first embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the guide component of the first embodiment of this utility model.

[0024] In the diagram: 101-Mounting bracket, 102-Hydraulic cylinder, 103-Lifting rod, 104-Connecting seat, 105-Synchronizing seat, 106-Support rod, 107-Sealing seat, 108-Sealing sleeve, 109-Sealing gasket, 110-Guide slider, 111-Connecting rod, 112-Guide cylinder, 113-Guide rod, 114-Clamping seat, 115-Injection pipe, 116-Connecting block, 117-Air guide pipe, 118-Vacuum pipe, 119-Filling pipe. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] The first embodiment of this application is as follows:

[0027] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the Kr-85 gas collection mechanism according to the first embodiment of this utility model. Figure 2 This is a structural schematic diagram of the lifting assembly according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the installation assembly, gas guiding assembly, and vacuum assembly of the first embodiment of this utility model. Figure 4 This is a schematic diagram of the guiding assembly of the first embodiment of the present invention. The present invention provides a Kr-85 gas collection mechanism, including a mounting frame 101, a lifting assembly, a mounting assembly, a guiding assembly, a gas guiding assembly, and a vacuum assembly. The lifting assembly includes a hydraulic cylinder 102, a lifting rod 103, a connecting seat 104, and a synchronization seat 105. The mounting assembly includes a support rod 106, a sealing seat 107, a sealing sleeve 108, and a sealing gasket 109. The guiding assembly includes a guide slider 110, a connecting rod 111, a guide cylinder 112, a guide rod 113, and a clamping seat 114. The gas guiding assembly includes an injection pipe 115, a connecting block 116, and a gas guiding pipe 117. The vacuum assembly includes a vacuum pipe 118 and a filling pipe 119. The aforementioned solution solves the problem that the Kr-85 gas injection pipe cannot extend to a position close to the adsorbed silica gel, because the gas injection pipe can only be at the bottle opening. Otherwise, when adding scintillation liquid, the gas injection pipe opening will be submerged and the pipe will freeze in the bottle.

[0028] In this specific embodiment, the hydraulic cylinder 102 is fixedly connected to the mounting bracket 101 and located on the outside of the mounting bracket 101. There are two lifting rods 103, each slidably connected to and passing through the hydraulic cylinder 102. The connecting seat 104 is fixedly connected to the lifting rod 103 and located at the bottom of the lifting rod 103. The synchronizing seat 105 is fixedly connected to the connecting seat 104 and located at the bottom of the synchronizing seat 105. The mounting assembly and the guiding assembly are respectively connected to the synchronizing seat 105. The air guiding assembly and the vacuum assembly are respectively connected to the mounting assembly. The mounting bracket 101 provides support for the device. The hydraulic cylinder 102 controls the lifting rod 103. The lifting rod 103 is the connecting rod... The connecting seat 104 provides support for the synchronizing seat 105, which in turn controls the guiding assembly. In use, the gas collecting bottle is placed below the sealing seat 107. The hydraulic cylinder 102 is controlled to extend the lifting rod 103, causing the connecting seat 104 and the synchronizing seat 105 to press down, thus sealing the gas collecting bottle with the sealing seat 107. After sealing, an external vacuum device evacuates the gas collecting bottle to a vacuum state through the vacuum tube 118. Scintillation fluid is injected into the gas collecting bottle through the filling tube 119. Then, the guiding cylinder 112 pushes the guiding rod 113 to extend, causing the clamp 114 and the injection tube 115 to press down, thus pressing the injection tube 115 into the gas collecting bottle, facilitating the injection of Kr-85 gas into the gas collecting bottle.

[0029] The system includes two support rods 106, each fixedly connected to a synchronization seat 105 and located at the bottom of the synchronization seat 105. A sealing seat 107 is fixedly connected to the support rods 106 and located at the bottom of the support rods 106. The support rods 106 provide support and control for the sealing seat 107, which is used to seal the gas collecting bottle and provide support for the vacuum assembly.

[0030] The sealing sleeve 108 is fixedly connected to the sealing seat 107 and is located on top of the sealing seat 107. The sealing sleeve 108 provides a limiting and sealing function for the injection tube 115.

[0031] The sealing gasket 109 is detachably connected to the sealing seat 107 and is located at the bottom of the sealing seat 107. The sealing gasket 109 is used to provide a sealing effect for the vacuum tube 118 and the filling tube 119.

[0032] The system includes two guide sliders 110, which are slidably connected to the hydraulic cylinders 102 and located outside the hydraulic cylinders 102. It also includes two connecting rods 111, which are fixedly connected to the guide sliders 110 and located outside the guide sliders 110. The guide sliders 110 provide guidance for the hydraulic cylinders 102 and the guide cylinders 112, respectively, while the connecting rods 111 provide support for the hydraulic cylinders 102 and the guide cylinders 112.

[0033] The guide cylinder 112 is fixedly connected to the connecting rod 111 and passes through the synchronous seat 105. The guide rod 113 is slidably connected to the guide cylinder 112 and is located at the bottom of the guide cylinder 112. The guide cylinder 112 is used to provide control over the guide rod 113, and the guide rod 113 is used to provide transmission over the clamp 114 and the injection pipe 115.

[0034] The clamp 114 is fixedly connected to the guide rod 113 and is located at the bottom of the guide rod 113. The clamp 114 is used to fix and clamp the injection tube 115.

[0035] Secondly, the injection tube 115 is fixedly connected to the clamp 114 and passes through the clamp 114. The connecting block 116 is fixedly connected to the injection tube 115 and is located at the top of the injection tube 115. The injection tube 115 is used to inject Kr-85 gas into the gas collecting bottle. After sealing, the guide cylinder 112 pushes the guide rod 113 to extend, and at the same time drives the clamp 114 and the injection tube 115 to extend, inserting the injection tube 115 into the gas collecting bottle to facilitate gas injection.

[0036] Furthermore, the gas guide pipe 117 is fixedly connected to the connecting block 116 and is located outside the connecting block 116. The gas guide pipe 117 provides a guiding function for Kr-85 gas.

[0037] Finally, the vacuum tube 118 is fixedly connected to the sealing seat 107 and passes through the sealing seat 107. The filling tube 119 is fixedly connected to the sealing seat 107 and passes through the sealing seat 107. The vacuum tube 118 is connected to an external vacuum device for vacuum treatment of the gas collecting bottle. The filling tube 119 is connected to an external pump for pumping scintillation liquid into the gas collecting bottle.

[0038] Using the Kr-85 gas collection mechanism of this embodiment, the mounting bracket 101 provides support for the device, the hydraulic cylinder 102 controls the lifting rod 103, the lifting rod 103 supports the connecting seat 104, the connecting seat 104 supports the synchronizing seat 105, and the synchronizing seat 105 controls the guiding assembly. In use, the gas collection bottle is placed below the sealing seat 107, and the hydraulic cylinder 102 is controlled to push the lifting rod 103 to extend, causing the connecting seat 104 and the synchronizing seat 105 to press down, thus driving the sealing seat 107 to press against the gas collection bottle. After sealing, an external vacuum device evacuates the gas collecting bottle to a vacuum state through the vacuum tube 118. Scintillation liquid is injected into the gas collecting bottle through the injection tube 119. Then, the guide cylinder 112 pushes the guide rod 113 to extend, causing the clamp 114 and the injection tube 115 to be pressed down, so that the injection tube 115 is pressed into the gas collecting bottle, which facilitates the injection of Kr-85 gas into the gas collecting bottle. This solves the problem that the Kr-85 gas injection tube cannot be extended to a position close to the adsorbed silica gel, because the gas injection tube can only be at the bottle opening. Otherwise, when adding scintillation liquid, the gas injection tube opening will be submerged and the tube will be frozen in the bottle.

[0039] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A Kr-85 gas collection mechanism comprising a mounting frame, characterized in that, further comprising a lifting assembly, a mounting assembly, a guide assembly, a gas guide assembly and a vacuum assembly; the lifting assembly comprises a hydraulic cylinder, a lifting rod, a connecting seat and a synchronous seat, the hydraulic cylinder is fixedly connected with the mounting frame and located outside the mounting frame, the number of the lifting rods is two, the two lifting rods are respectively in sliding connection with the hydraulic cylinder and respectively pass through the hydraulic cylinder, the connecting seat is fixedly connected with the lifting rod and located at the bottom of the lifting rod, the synchronous seat is fixedly connected with the connecting seat and located at the bottom of the synchronous seat, the mounting assembly and the guide assembly are respectively connected with the synchronous seat, and the gas guide assembly and the vacuum assembly are respectively connected with the mounting assembly.

2. The Kr-85 gas collection mechanism according to claim 1, characterized in that, the mounting assembly comprises a support rod and a sealing seat, the number of the support rods is two, the two support rods are respectively fixedly connected with the synchronous seat and respectively located at the bottom of the synchronous seat, and the sealing seat is fixedly connected with the support rod and located at the bottom of the support rod.

3. The Kr-85 gas collection mechanism according to claim 2, characterized in that, the mounting assembly further comprises a sealing sleeve, the sealing sleeve is fixedly connected with the sealing seat and located at the top of the sealing seat.

4. The Kr-85 gas collection mechanism according to claim 3, characterized in that, the mounting assembly further comprises a sealing gasket, the sealing gasket is detachably connected with the sealing seat and located at the bottom of the sealing seat.

5. The Kr-85 gas collection mechanism according to claim 1, characterized in that, the guide assembly comprises a guide slider and a connecting rod, the number of the guide sliders is two, the two guide sliders are respectively in sliding connection with the hydraulic cylinder and respectively located outside the hydraulic cylinder, and the number of the connecting rods is two, the two connecting rods are respectively fixedly connected with the guide sliders and respectively located outside the guide sliders.

6. The Kr-85 gas collection mechanism according to claim 5, characterized in that, the guide assembly further comprises a guide cylinder and a guide rod, the guide cylinder is fixedly connected with the connecting rod and passes through the synchronous seat, and the guide rod is in sliding connection with the guide cylinder and located at the bottom of the guide cylinder.

7. The Kr-85 gas collection mechanism according to claim 6, characterized in that, the guide assembly further comprises a clamping seat, the clamping seat is fixedly connected with the guide rod and located at the bottom of the guide rod.

8. The Kr-85 gas collection mechanism according to claim 7, characterized in that, the gas guide assembly comprises an injection pipe and a connecting block, the injection pipe is fixedly connected with the clamping seat and passes through the clamping seat, and the connecting block is fixedly connected with the injection pipe and located at the top of the injection pipe.

9. The Kr-85 gas collection mechanism according to claim 8, characterized in that, the gas guide assembly further comprises a gas guide pipe, the gas guide pipe is fixedly connected with the connecting block and located outside the connecting block.

10. The Kr-85 gas collection mechanism of claim 2, wherein, the vacuum assembly includes a vacuum tube and a fill tube, the vacuum tube is fixedly connected with the seal seat and passes through the seal seat, and the fill tube is fixedly connected with the seal seat and passes through the seal seat.

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