CN220231987U

CN220231987U - Vacuum neutron detector device

Info

Publication number: CN220231987U
Application number: CN202321395400.8U
Authority: CN
Inventors: 刘丽
Original assignee: Henan Wanruilida Technology Co ltd
Current assignee: Henan Wanruilida Technology Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-12-22
Anticipated expiration: 2033-06-02

Abstract

The utility model relates to the technical field of neutron detectors, and discloses a vacuum neutron detector device which comprises a main body mechanism, a moving mechanism and an auxiliary mechanism, wherein the moving mechanism is positioned at the inner end of the main body mechanism, the auxiliary mechanism is positioned at the outer end of the main body mechanism, the main body mechanism comprises a vacuum shell, a case, a sealing cover, an air pump, an air valve I and an air valve II, the case is movably arranged at the upper end of the vacuum shell, the sealing cover is movably arranged below the case, the air pump is fixedly arranged at the upper end of the sealing cover, and the air valve I is fixedly arranged at the lower end of the sealing cover. This vacuum neutron detector device, in the time of the neutron detector body need switch position detection, start positive and negative motor, drive the carousel and rotate to drive neutron detector body and remove in the spout upper end, thereby switch position, when needing to overhaul, open pneumatic valve two, to the inside air of vacuum casing is towards, and sealed lid is opened to the spiral again, overhauls the inside vacuum casing.

Description

Vacuum neutron detector device

Technical Field

The utility model relates to the technical field of neutron detectors, in particular to a vacuum neutron detector device.

Background

The neutron detector refers to a detector capable of detecting neutrons, which measures secondary particles generated by the actions of neutrons and certain atomic nuclei doped into the detector, and can also use neutrons to enable an activation sheet (such as indium) to generate induced radioactivity, and the flux of neutrons can also be measured by measuring the induced radioactivity, so that the influence of air impurities is greatly reduced, and the detection efficiency of the neutron detector is improved.

The prior patent CN217739046U proposes a vacuum neutron detector device, in which a neutron detector is fixedly installed on an atmosphere connection box, a neutron receiving end of the neutron detector is located in the vacuum cavity, a high-pressure end of the neutron detector extends into the atmosphere cavity, and the atmosphere connection box is movably arranged on the bearing plate so as to drive the neutron detector to switch between a detection position and a non-detection position.

However, the conventional CN217739046U cannot repair internal parts, lacks an evacuation and sealing mechanism, and cannot satisfy more detection angles because only the left and right switches are possible when the positions of the neutron detectors are switched.

Disclosure of Invention

(one) solving the technical problems

The utility model aims to provide a vacuum neutron detector device, which solves the problems that the prior art CN217739046U cannot overhaul internal parts, lacks an evacuating and sealing mechanism, can only switch left and right when the position of a neutron detector is switched, and cannot meet more detection angles.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vacuum neutron detector device, includes main part mechanism, mobile mechanism and complementary unit, mobile mechanism is located the inner of main part mechanism, complementary unit is located the outer end of main part mechanism, main part mechanism includes vacuum housing, quick-witted case and sealed lid, quick-witted case movable mounting is in the upper end of vacuum housing, sealed lid movable mounting carries out vacuum seal to vacuum housing through sealed lid in the below of machine case to sealed lid and vacuum housing upper end threaded connection, sealed lid lower extreme is provided with sealed the pad in addition, promotes sealed effect.

Preferably, the main body mechanism further comprises an air pump, an air valve I, an air valve II and a partition plate, wherein the air pump is fixedly arranged at the upper end of the sealing cover, the air valve I is fixedly arranged at the lower end of the sealing cover, the air valve I is connected with the air pump in a tubular mode, the air valve II is fixedly arranged on the right side of the air valve I, the air valve II is connected with the vacuum shell in a tubular mode, the partition plate is movably arranged below the sealing cover, a plurality of vent holes are formed in the partition plate, the air valve I is electrically controlled to open, the air pump is started to pump out air of the vacuum shell, the air valve I is closed again, when overhauling is to be opened, the air valve II is electrically controlled to open, the air of the vacuum shell is punched, and the sealing cover can be opened again in a spiral mode to overhauling the inside of the vacuum shell.

Preferably, the moving mechanism comprises a positive and negative motor, a rotating shaft, a turntable, a connecting rod, a neutron detector body, a limiting plate, a chute, a supporting rod, an air vent, a corrugated pipe and an air box, wherein the positive and negative motor is fixedly arranged at the upper end of the partition board, and the rotating shaft is movably arranged at the lower end of the positive and negative motor.

Preferably, the carousel fixed mounting is in the lower extreme of pivot, connecting rod fixed mounting is in the lower extreme of carousel, neutron detector body fixed mounting is in the lower extreme of connecting rod, limiting plate fixed mounting is in the below of neutron detector body, spout fixed mounting is in the outer end of limiting plate, bracing piece fixed mounting is in the lower extreme of limiting plate, and when the neutron detector body needs the switching position to detect, starts positive and negative motor, drives the pivot and rotates to drive the carousel and rotate, thereby drive neutron detector body and remove on the spout, thereby switch the position, through limiting plate and spout, increase the stability of neutron detector body when the displacement.

Preferably, the vent is fixed to be set up in the left end of vacuum housing, bellows fixed mounting is at the right-hand member of vent, bellows and vent sealing connection, air case fixed mounting is at the right-hand member of bellows, air case and bellows sealing connection, through bellows and vent sealing connection, through air case and bellows sealing connection, through neutron detector body lower extreme and air case sealing connection, when making the one end of neutron detector body contact air, ensure the inside vacuum environment of vacuum housing, through the bellows, make the air case can follow neutron detector body and remove the switching position, through positive and negative motor, prevent bellows winding bracing piece.

Preferably, the auxiliary mechanism comprises a ventilation window, an observation window, a control panel, a supporting seat and a rubber pad, wherein the ventilation window is fixedly arranged at the front end of the case, and the ventilation window is used for facilitating the discharge and the flushing of air in the vacuum shell.

Preferably, the observation window is fixedly installed at the right end of the vacuum shell, the control panel is fixedly installed at the left side of the observation window, the supporting seat is fixedly installed at the lower end of the vacuum shell, the rubber pad is fixedly installed at the lower end of the supporting seat, the operation condition inside the observation window is observed through the observation window, and the electric connection parts inside the control device are used for opening and closing the control panel.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the vacuum neutron detector device, a vacuum shell is sealed through a sealing cover, the sealing cover is in threaded connection with the upper end of the vacuum shell, a sealing gasket is arranged at the lower end of the sealing cover, the sealing effect is improved, an air pump is started, air of the vacuum shell is pumped out, an air valve I is closed, when overhauling is to be opened, an air valve II is opened in an electric control mode, air of the vacuum shell is flushed, and the sealing cover is opened in a spiral mode to overhauling the inside of the vacuum shell;

2. when the position detection needs to be switched on, the vacuum neutron detector device starts the positive and negative motor to drive the rotating shaft to rotate so as to drive the rotary table to rotate, so that the neutron detector body is driven to move at the upper end of the chute, the position is switched on, the stability of the neutron detector body in displacement is improved through the limiting plate and the chute, the neutron detector body is in sealed connection with the vent through the corrugated pipe and the air box, the lower end of the neutron detector body is in sealed connection with the corrugated pipe through the air box, the vacuum environment inside the vacuum shell is ensured while one end of the neutron detector body can contact air, the air box can move along with the neutron detector body to switch positions through the corrugated pipe, and the corrugated pipe is prevented from winding the supporting rod through the positive and negative motor;

3. this vacuum neutron detector device, through the transom, make things convenient for the inside air's of vacuum casing discharge and dash and close, through the observation window, observe inside running condition, through control panel, the inside electric connection part of controlling means opens and closes the operation to them.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a main body mechanism of the present utility model;

FIG. 3 is a schematic view of a part of the main body mechanism of the present utility model;

FIG. 4 is a schematic view of a partially exploded construction of the moving mechanism of the present utility model;

fig. 5 is a schematic view of a partial cross-sectional structure of a moving mechanism according to the present utility model.

In the figure: 1. a main body mechanism; 101. a vacuum housing; 102. a chassis; 103. sealing cover; 104. an air extracting pump; 105. an air valve I; 106. a second air valve; 107. a partition plate; 2. a moving mechanism; 201. a forward and reverse motor; 202. a rotating shaft; 203. a turntable; 204. a connecting rod; 205. a neutron detector body; 206. a limiting plate; 207. a chute; 208. a support rod; 209. a vent; 210. a bellows; 211. an air box; 3. an auxiliary mechanism; 301. a louver; 302. an observation window; 303. a control panel; 304. a support base; 305. and a rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a vacuum neutron detector device, including body mechanism 1, mobile mechanism 2 and auxiliary mechanism 3, mobile mechanism 2 is located the inner of body mechanism 1, auxiliary mechanism 3 is located the outer end of body mechanism 1, body mechanism 1 includes vacuum housing 101, quick-witted case 102 and sealed lid 103, machine case 102 movable mounting is in the upper end of vacuum housing 101, sealed lid 103 movable mounting is in the below of machine case 102, body mechanism 1 still includes aspiration pump 104, first pneumatic valve 105, second pneumatic valve 106 and baffle 107, aspiration pump 104 fixed mounting is in the upper end of sealed lid 103, first pneumatic valve 105 fixed mounting is in the lower extreme of sealed lid 103, first pneumatic valve 105 and aspiration pump 104 tubular connection, second pneumatic valve 106 fixed mounting is on the right side of first pneumatic valve 105, second pneumatic valve 106 and vacuum housing 101 tubular connection, baffle 107 movable mounting is in the below of sealed lid 103, baffle 107 inside is provided with a plurality of air vent, vacuum housing 101 is sealed through sealed lid 103, and sealed lid 103 upper end threaded connection, in addition 103 lower extreme is provided with the sealing pad, promote sealed effect, then start aspiration pump 104, take out the air of housing 101, when the sealed lid is closed, second pneumatic valve 106 is opened again, the inside is opened to the vacuum housing 101, when the inside is opened, the inside is overhauld to be closed to the vacuum housing 101.

The moving mechanism 2 comprises a positive and negative motor 201, a rotating shaft 202, a turntable 203, a connecting rod 204, a neutron detector body 205, a limiting plate 206, a chute 207, a supporting rod 208, an air vent 209, a corrugated pipe 210 and an air box 211, wherein the positive and negative motor 201 is fixedly arranged at the upper end of the partition plate 107, the rotating shaft 202 is movably arranged at the lower end of the positive and negative motor 201, the turntable 203 is fixedly arranged at the lower end of the rotating shaft 202, the connecting rod 204 is fixedly arranged at the lower end of the turntable 203, the neutron detector body 205 is fixedly arranged at the lower end of the connecting rod 204, the limiting plate 206 is fixedly arranged below the neutron detector body 205, the chute 207 is fixedly arranged at the outer end of the limiting plate 206, the supporting rod 208 is fixedly arranged at the lower end of the limiting plate 206, the air vent 209 is fixedly arranged at the left end of the vacuum shell 101, the corrugated pipe 210 is fixedly arranged at the right end of the air vent 209, the corrugated pipe 210 is in sealing connection with the air vent 209, the air box 211 is fixedly arranged at the right end of the corrugated pipe 210, the air box 211 is in sealing connection with the corrugated pipe 210, when the position of the neutron detector body 205 needs to be detected, the positive and negative motor 201 is started to drive the rotating shaft 202 to rotate, thereby driving the turntable 203 to rotate, thereby driving the neutron detector body 205 to move at the upper end of the chute 207, thereby switching the position, the stability of the neutron detector body 205 in displacement is increased through the limiting plate 206 and the chute 207, the air box 210 is in sealing connection with the air vent 209, the air box 211 is in sealing connection with the corrugated pipe 210, the lower end of the neutron detector body 205 is in sealing connection with the air box 211, the vacuum environment inside the vacuum shell 101 is ensured while one end of the neutron detector body 205 can contact air, the air box 211 can follow the neutron detector body 205 to move the switching position through the corrugated pipe 210, the bellows 210 is prevented from winding around the support rod 208.

The auxiliary mechanism 3 comprises a ventilation window 301, an observation window 302, a control panel 303, a supporting seat 304 and a rubber pad 305, wherein the ventilation window 301 is fixedly arranged at the front end of the chassis 102, the observation window 302 is fixedly arranged at the right end of the vacuum shell 101, the control panel 303 is fixedly arranged at the left side of the observation window 302, the supporting seat 304 is fixedly arranged at the lower end of the vacuum shell 101, the rubber pad 305 is fixedly arranged at the lower end of the supporting seat 304, the ventilation window 301 is used for facilitating the discharge and flushing of air in the vacuum shell 101, the observation of the internal operation condition is carried out through the observation window 302, and the control panel 303 is used for controlling the internal electric connection parts of the device to open and close the electric connection parts.

Working principle: when the vacuum shell 101 is to be evacuated, the air extracting pump 104 is started to extract air of the vacuum shell 101, the air valve I105 is closed after the vacuum standard is met, when the position detection of the neutron detector body 205 is required to be switched, the positive and negative motor 201 is started, the rotating shaft 202 is driven to rotate, the rotating disc 203 is driven to rotate, the neutron detector body 205 is driven to move at the upper end of the sliding groove 207, the position is switched, the stability of the neutron detector body 205 in displacement is improved through the limiting plate 206 and the sliding groove 207, when the device is to be opened for maintenance, the air valve II 106 is opened in an electric control mode, the air of the vacuum shell 101 is flushed, the chassis 102 is taken down, and the sealing cover 103 is opened in a spiral mode, so that the inside of the vacuum shell 101 can be overhauled.

Finally, it should be noted that the above description is only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and that the simple modification and equivalent substitution of the technical solution of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a vacuum neutron detector device, includes main body mechanism (1), mobile mechanism (2) and complementary unit (3), its characterized in that: the mobile mechanism (2) is positioned at the inner end of the main body mechanism (1), the auxiliary mechanism (3) is positioned at the outer end of the main body mechanism (1), the main body mechanism (1) comprises a vacuum shell (101), a machine box (102) and a sealing cover (103), the machine box (102) is movably arranged at the upper end of the vacuum shell (101), and the sealing cover (103) is movably arranged below the machine box (102);

the main body mechanism (1) further comprises an air pump (104), an air valve I (105), an air valve II (106) and a partition plate (107), wherein the air pump (104) is fixedly arranged at the upper end of the sealing cover (103), the air valve I (105) is fixedly arranged at the lower end of the sealing cover (103), the air valve I (105) is in tubular connection with the air pump (104), the air valve II (106) is fixedly arranged on the right side of the air valve I (105), the air valve II (106) is in tubular connection with the vacuum shell (101), the partition plate (107) is movably arranged below the sealing cover (103), and a plurality of ventilation holes are formed in the partition plate (107).

2. The vacuum neutron detector apparatus of claim 1, wherein: the moving mechanism (2) comprises a positive and negative motor (201), a rotating shaft (202), a rotating disc (203), a connecting rod (204), a neutron detector body (205), a limiting plate (206), a sliding groove (207), a supporting rod (208), an air vent (209), a corrugated pipe (210) and an air box (211), wherein the positive and negative motor (201) is fixedly arranged at the upper end of the partition plate (107), and the rotating shaft (202) is movably arranged at the lower end of the positive and negative motor (201).

3. The vacuum neutron detector apparatus of claim 2, wherein: carousel (203) fixed mounting is in the lower extreme of pivot (202), connecting rod (204) fixed mounting is in the lower extreme of carousel (203), neutron detector body (205) fixed mounting is in the lower extreme of connecting rod (204), limiting plate (206) fixed mounting is in the below of neutron detector body (205), spout (207) fixed mounting is in the outer end of limiting plate (206), bracing piece (208) fixed mounting is in the lower extreme of limiting plate (206).

4. A vacuum neutron detector apparatus according to claim 3, wherein: the air vent (209) is fixedly arranged at the left end of the vacuum shell (101), the corrugated pipe (210) is fixedly arranged at the right end of the air vent (209), the corrugated pipe (210) is in sealing connection with the air vent (209), the air tank (211) is fixedly arranged at the right end of the corrugated pipe (210), and the air tank (211) is in sealing connection with the corrugated pipe (210).

5. The vacuum neutron detector apparatus of claim 4, wherein: the auxiliary mechanism (3) comprises a ventilation window (301), an observation window (302), a control panel (303), a supporting seat (304) and a rubber pad (305), wherein the ventilation window (301) is fixedly arranged at the front end of the chassis (102).

6. The vacuum neutron detector apparatus of claim 5, wherein: the observation window (302) is fixedly arranged at the right end of the vacuum shell (101), the control panel (303) is fixedly arranged at the left side of the observation window (302), the supporting seat (304) is fixedly arranged at the lower end of the vacuum shell (101), and the rubber pad (305) is fixedly arranged at the lower end of the supporting seat (304).