CN103390438A - Boron concentration monitoring device - Google Patents
Boron concentration monitoring device Download PDFInfo
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- CN103390438A CN103390438A CN2013103105956A CN201310310595A CN103390438A CN 103390438 A CN103390438 A CN 103390438A CN 2013103105956 A CN2013103105956 A CN 2013103105956A CN 201310310595 A CN201310310595 A CN 201310310595A CN 103390438 A CN103390438 A CN 103390438A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a boron concentration monitoring device. The device comprises a shield, a sampling container disposed in the shield, and a neutron detector disposed in the sampling container. The device also comprises a neutron source assembly inside of which is closed. The front end of the neutron source assembly passes through the shield and contacts with the sampling container. The device also comprises a neutron source disposed in the neutron source assembly. Advantages and beneficial effects of the device are that arrangement of the shield can effectively reduce the neutron leakage rate and improve a neutron source shielding effect of the device; and the neutron source assembly and the neutron source are installed as a whole, and therefore the installation process is simpler.
Description
Technical field
The present invention relates to the nuclear industry field, be specifically related to a kind of boron concentration monitor device for monitoring pressurized-water reactor nuclear power plant coolant circuit boron concentration.
Background technology
Boron table system is used for the boron concentration of continuous monitoring pressurized-water reactor nuclear power plant coolant circuit, prevents the unexpected decline of a circuit cools agent boron concentration, guarantees the safe operation of reactor.Boron concentration monitor device is the key equipment of boron table system, be used for to sampling loop water boron (
10B) survey and export the neutron pulse signal of expression boron concentration, utilize the B solution temperature of the hygrosensor monitoring sampling loop that is arranged on sniffer sampling container discharge connection.
In existing boron concentration monitor device, neutron source is installed on the retainer of source by holding screw and locking device, then source retainer and exposed neutron source are installed in the sampling container source(-)holder of monitoring device inside together, and neutron source is installed very loaded down with trivial details and difficult.In addition, existing boron concentration monitor device lacks reliable shielding means, and the monitoring device maximum neutron dose rate in surface and maximum g dose rate are larger, and the shield effectiveness of neutron source is not fine.
Summary of the invention
It is not good that purpose of the present invention namely is to overcome the neutron source shield effectiveness that existing boron concentration monitor device exists, and neutron source is installed the problem of difficulty, and a kind of boron concentration monitor device is provided.
Purpose of the present invention is achieved through the following technical solutions:
Boron concentration monitor device, comprise shield, is arranged at the sampling container in shield, is arranged at the neutron detector in sampling container, also comprises the Neutron source assembly of enclose inside, and the front end of Neutron source assembly passes shield and with sampling container, contacts; Also comprise the neutron source that is arranged at described Neutron source assembly inside.
The present invention mainly keeps neutron source by the Neutron source assembly of enclose inside, makes neutron source be in non-naked state.This structure has reduced neutron leakage on the one hand, simultaneously Neutron source assembly and neutron source is done as a whole the installation, and its installation process is simpler.In addition, the setting of shield can effectively reduce the neutron leakage amount, has improved neutron source shield effectiveness of the present invention.
Further, described shield comprises the shielding slab of the stacked setting of polylith, and adjacent shielding slab is connected with recess-mounted by the projection that cooperatively interacts.Realize at utmost improving the purpose of neutron source shield effectiveness, need to carry out omnibearing parcel to sampling container and Neutron source assembly and (consider the problem of installation, all-in-one-piece shield can't provide omnibearing parcel), also to consider simultaneously how sampling container and Neutron source assembly are installed into the problem of shield.In the present invention, shield forms by the polylith shielding slab is stacked, when mounted, shielding slab can be enclosed within on sampling container and Neutron source assembly successively, when sampling container and Neutron source assembly are wrapped up fully, has realized the convenience of installing.
What be difficult to avoid between adjacent shielding slab there will be gap, has reduced shielding properties of the present invention.In order to address this problem, in the present invention, adjacent shielding slab is connected with recess-mounted by projection.The cooperation of projection and groove can improve sealing effectiveness, even while having gap between adjacent shielding slab, also can keep complete sealing.Simultaneously, the cooperation of projection and groove has also improved positioning precision and the stability of shield.
Further, described neutron source is cylindrical, and the axis of described neutron source vertically arranges, and the axis of described neutron detector vertically arranges, and the axial centre of described neutron source is alignd with the axial centre of described neutron detector, and is maximum to guarantee neutron detection efficiency.
Preferably, locating piece A and locating piece B that described Neutron source assembly comprises carrying shield and is arranged at the carrying shield interior forward end, locating piece A are symmetrical set and described neutron source are carried out circumferentially spacing, and locating piece B is symmetrical arranged up and down described neutron source is carried out axial limiting.Adopt said structure to position neutron source, can guarantee that neutron source vertically arranges, also can guarantee that the axial centre of neutron source aligns with the axial centre of neutron detector simultaneously.Simultaneously, said structure does not comprise that traditional insertion type stationary installation (as bolt etc.) is fixed neutron source, makes the replacing of neutron source convenient.
Further, described Neutron source assembly also comprises the briquetting that is fixed in described carrying shield, is arranged at the spring of briquetting front end, arc pressuring plate, arc pressuring plate is connected with spring and with described neutron source, contacts, and arc pressuring plate is pressed on described neutron source on described locating piece A by spring.The verticality of the neutron source that said structure causes for preventing neutron source to break away from locating piece A produces deviation, has improved monitoring accuracy of the present invention.
Further, described Neutron source assembly also comprises the carrying shield inner screening piece that is arranged in described carrying shield.Carrying shield inner screening piece is used in Neutron source assembly inside, neutron source being shielded, and has further improved shielding properties of the present invention.
Further, described sampling container comprises shell and neutron source base, and the neutron source base embeds in shell, and the front end of described Neutron source assembly embeds in the neutron source base.The neutron source base plays position-limiting action to the front end of Neutron source assembly, simultaneously, the neutron source of Neutron source assembly front end and the distance between neutron detector is shortened, and has improved monitoring accuracy of the present invention.
Further, the detector support member that also comprises HN connector and tubular; Described sampling container also comprises the detector sleeve pipe, the detector sleeve pipe vertically arranges, the upper end of detector sleeve pipe is arranged in described shell, the lower end of detector sleeve pipe is positioned at outside described shell, the lower end of detector sleeve pipe is provided with the section of being threaded, and described neutron detector is arranged in the detector sleeve pipe; The lower end of detector support member is taper, the detector support member penetrates from the bottom to top in the detector sleeve pipe and by the HN connector and is connected with described neutron detector, the lower end of detector support member is positioned at outside the detector sleeve pipe, and the transmission cable of described neutron detector is derived by the endoporus of detector support member; Also comprise the hold-down nut that offers bellmouth, hold-down nut is threaded with the section of being threaded, and the bellmouth of hold-down nut is pressed on the lower end of detector support member on the transmission cable of described neutron detector.
By the detector support member, can make neutron detector installation in position fast and accurately, the detector sleeve pipe can guarantee that neutron detector keeps vertical, the axial centre of neutron source is alignd with the axial centre of neutron detector.
The cooperation of the lower end by hold-down nut and detector support member, be pressed on the transmission cable of neutron detector the lower end of detector support member, seals, and Leakage prevention.
Further, also comprise insulation plug and thinwalled insulation pipe, the insulation plug is arranged at the top of thinwalled insulation pipe, and the thinwalled insulation pipe is arranged in described detector sleeve pipe and with described detector sleeve interference, coordinates.Said structure has been realized the insulation between neutron detector and detector sleeve pipe.
Further, also comprise the hygrosensor that is arranged at described sampling container exit.
In sum, advantage of the present invention and beneficial effect are:
1. the setting of shield can effectively reduce the neutron leakage amount, has improved neutron source shield effectiveness of the present invention; Neutron source assembly and neutron source are done as a whole the installation, and its installation process is simpler;
2. adopt the polylith shielding slab to form shield, when sampling container and Neutron source assembly are wrapped up fully, realized the convenience of installing;
3. the cooperation of projection and groove can improve sealing effectiveness, even while having gap between adjacent shielding slab, also can keep complete sealing, simultaneously, the cooperation of projection and groove has also improved positioning precision and the stability of shield;
4. adopt locating piece A and locating piece B to carry out neutron source spacing, can guarantee verticality and the axial location of neutron source, make simultaneously the replacing of neutron source convenient;
5., by the detector support member, can make neutron detector installation in position fast and accurately, the detector sleeve pipe can guarantee that neutron detector keeps vertical, and the axial centre of neutron source is alignd with the axial centre of neutron detector;
6. the cooperation of the lower end by hold-down nut and detector support member, be pressed on the transmission cable of neutron detector the lower end of detector support member, seal, and Leakage prevention;
7. insulation plug and thinwalled insulation pipe have been realized the insulation between neutron detector and detector sleeve pipe.
Description of drawings
, in order to be illustrated more clearly in embodiments of the invention, below will be briefly described describing the required accompanying drawing of using in the embodiment of the present invention.Apparent, the accompanying drawing in the following describes is only some embodiment that put down in writing in the present invention, to those skilled in the art,, in the situation that do not pay creative work, can also, according to following accompanying drawing, obtain other accompanying drawing.
Fig. 1 is front view of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is that the A-A of Fig. 2 is to cut-open view;
Fig. 4 is that the B-B of Fig. 1 is to cut-open view;
Fig. 5 is perspective view of the present invention;
Fig. 6 is the horizontal cross of Neutron source assembly;
Fig. 7 is the vertical sectional view of Neutron source assembly;
Fig. 8 is the structural representation of locating piece A;
Fig. 9 is the structural representation of locating piece B;
Figure 10 is the structural representation of sampling container;
Figure 11 is the structural representation of detector support member;
Wherein, the parts title that Reference numeral is corresponding is as follows:
the 1-bracing frame, the 2-base plate, 3-shielding slab J, 4-shielding slab I, 5-shielding slab H, 6-shielding slab G, 7-shielding slab F, 8-shielding slab E, 9-shielding slab D, 10-shielding slab C, 11-shielding slab B, 12-shielding slab A, the 13-lamina tecti, the 14-sampling container, the 15-plug that insulate, the 16-joint flange, the 17-Neutron source assembly, the 18-clad can, the 19-neutron detector, the 20-insulation tube, the 21-HN connector, 22-detector support member, the 23-hygrosensor, 24-neutron source, the 25-hold-down nut, the 1401-bottom (head), 1402-detector sleeve pipe, the 1403-shell, 1404-neutron source base, the 1405-cover head, the 1406-closure plate, the 1407-discharge connection, the 1408-linkage section, the 1409-entrance sleeve, the 1701-carrying shield, 1702-locating piece A, 1703-carrying shield end plate, the 1704-briquetting, 1705-carrying shield inner screening piece, the 1706-web joint, the 1707-cap assembly, 1708-locating piece B, the 1709-arc pressuring plate, the 1710-spring, 1711-shields pad.
Embodiment
, in order to make those skilled in the art understand better the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description.Apparent, embodiment described below is only the part in the embodiment of the present invention, rather than all.Based on the embodiment of the present invention record, those skilled in the art are not in the situation that pay other all embodiment that creative work obtains, all in the scope of protection of the invention.
Embodiment 1:
As Fig. 3, Fig. 4 and shown in Figure 6, boron concentration monitor device, comprise shield, be arranged at the sampling container 14 in shield, be arranged at the neutron detector 19 in sampling container 14, the Neutron source assembly 17 that also comprises enclose inside, the front end of Neutron source assembly 17 pass shield and with sampling container 14, contact; Also comprise the neutron source 24 that is arranged at described Neutron source assembly 19 inside.
The present embodiment mainly provides a kind of boron concentration monitor device that comprises the Neutron source assembly 17 of shield and enclose inside, to improve the neutron source shield effectiveness, and the installation procedure of neutron source 24.All the other ingredients of boron concentration monitor device, those skilled in the art can carry out perfect according to existing boron concentration monitor device.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, and shield preferably consists of tygon.Poly with low cost, obtain conveniently, and the neutron source shielding properties is better, is to realize preferred material of the present invention.But the present invention does not get rid of other can realize the material of neutron source shielding.
Embodiment 3:
As shown in Figure 3, the present embodiment is on the basis of embodiment 1 or embodiment 2, and described shield comprises the shielding slab of the stacked setting of polylith, and adjacent shielding slab is connected with recess-mounted by the projection that cooperatively interacts.
In the present embodiment, comprise ten shielding slabs, be shielding slab J3, shielding slab I4, shielding slab H5, shielding slab G6, shielding slab F7, shielding slab E8, shielding slab D9, shielding slab C10, shielding slab B11 and shielding slab A12 from top to bottom successively, be connected with recess-mounted by the projection that cooperatively interacts between adjacent shielding slab.Wherein, offer on the shielding slab H5 that contacts with sampling container 14, shielding slab G6, shielding slab F7, shielding slab E8, shielding slab D9 and shielding slab C10 with sampling container 14 correspondence positions adapt space, to wrap up sampling container 14 fully.Offer on the shielding slab G6 that wherein with Neutron source assembly 17, contacts, shielding slab F7 and shielding slab E8 and the Neutron source assembly 17 suitable spaces of correspondence position, to wrap up Neutron source assembly 17 fully.
Embodiment 4:
As shown in Figure 3 and Figure 7, the present embodiment is on the basis of above-mentioned any one embodiment, described neutron source 24 is cylindrical, the axis of described neutron source 24 vertically arranges, the axis of described neutron detector 3 vertically arranges, the axial centre of described neutron source 24 is alignd with the axial centre of described neutron detector 3, and is maximum to guarantee neutron detection efficiency.
Embodiment 5:
As Fig. 6 ~ shown in Figure 9, the present embodiment is on the basis of embodiment 4, locating piece A1702 and locating piece B1708 that described Neutron source assembly 17 comprises carrying shield 1701 and is arranged at carrying shield 1701 interior forward end, locating piece A1702 is symmetrical set and described neutron source 24 is carried out circumferentially spacing, and locating piece B1708 is symmetrical arranged up and down described neutron source 24 is carried out axial limiting.
Wherein locating piece A1702 comprises a dip plane and the arc surface that coordinates with carrying shield 1701 inside surfaces, when two locating piece A1702 are symmetrical set, dip plane is vertical, two dip plane are relative, the periphery of neutron source 24 contacts with two dip plane simultaneously, thereby neutron source 24 is carried out circumferentially spacing, guarantee the verticality of neutron source 24.
Wherein locating piece B1708 comprises a surface level and the arc surface that coordinates with carrying shield 1701 inside surfaces, when two locating piece B1708 are symmetrical arranged up and down, two surface levels are relative, and the both ends of the surface up and down of neutron source 24 contact with two surface levels respectively, from realizing the restriction to neutron source 24 upright positions.
Need to prove, the present embodiment has provided a kind of implementation of the locating piece of realizing and axial limiting circumferential spacing to neutron source 24.Other can realize the circumferentially locating piece form of spacing and axial limiting of neutron source 24, is also containing within the scope of the invention.
Embodiment 6:
As shown in Figure 6 and Figure 7, the present embodiment is on the basis of embodiment 5, further, described Neutron source assembly 17 also comprises the briquetting 1704 that is fixed in described carrying shield 1701, be arranged at the spring 1710 of briquetting 1704 front ends, arc pressuring plate 1709, arc pressuring plate 1709 are connected with spring 1710 and with described neutron source 24, contact, and arc pressuring plate 209 is pressed on described neutron source 24 on described locating piece A1702 by spring 1710.
Embodiment 7:
As shown in Figure 6 and Figure 7, the present embodiment is on the basis of embodiment 5 or embodiment 6, and further, described Neutron source assembly 17 also comprises the carrying shield inner screening piece 1705 that is arranged in described carrying shield 1701.
Carrying shield inner screening piece 1705 is arranged at the rear of neutron source 24, prevents that neutron and g ray that neutron source 24 produces from leaking from the rear of Neutron source assembly 17, further increases the neutron source screening ability.
Embodiment 8:
As Fig. 3 and shown in Figure 10, the present embodiment is on the basis of above-mentioned any one embodiment, described sampling container 14 comprises shell 1403 and neutron source base 1404, and neutron source base 1404 embeds in shell 1403, and the front end of described Neutron source assembly 17 embeds in neutron source base 1404.
Neutron source base 1404 be with Neutron source assembly 17 front ends to the shape that coordinates, neutron source base 1404 levels embed the periphery of sampling containers 14, the bottom of neutron source base 1404 is with respect to the more close neutron detector 19 of the outer wall of sampling container 14.The front end of 1404 pairs of Neutron source assemblies 17 of neutron source base plays position-limiting action, simultaneously, the neutron source 24 of Neutron source assembly 17 front ends and the distance between neutron detector 19 is shortened, and has improved monitoring accuracy of the present invention.
Embodiment 9:
As Fig. 3 and shown in Figure 11, the present embodiment on the basis of embodiment 8, also comprises the detector support member 22 of HN connector 21 and tubular; Described sampling container 14 also comprises detector sleeve pipe 1402, detector sleeve pipe 1402 vertically arranges, the upper end of detector sleeve pipe 1402 is arranged in described shell 1403, the lower end of detector sleeve pipe 1402 is positioned at outside described shell 1403, the lower end of detector sleeve pipe 1402 is provided with the section of being threaded 1408, and described neutron detector 19 is arranged in detector sleeve pipe 1402; The lower end of detector support member 22 is taper, detector support member 22 penetrates from the bottom to top in detector sleeve pipe 1402 and by HN connector 21 and is connected with described neutron detector 19, the lower end of detector support member 22 is positioned at outside detector sleeve pipe 1402, and the transmission cable of described neutron detector 19 is derived by the endoporus of detector support member 22; Also comprise the hold-down nut 25 that offers bellmouth, hold-down nut 25 is threaded with the section of being threaded 1408, and the bellmouth of hold-down nut 25 is pressed on the lower end of detector support member 22 on the transmission cable of described neutron detector 19.
When assembling, neutron detector 19 is connected by HN connector 21 with detector support member 22, the transmission cable of neutron detector 19 passes by the endoporus of detector support member 22, then, neutron detector 19 and detector support member 22 integral body are penetrated in detector sleeve pipe 1402, and the bottom of detector support member 22 is provided with the projection identical with detector sleeve pipe 1402 diameters to provide spacing.Finally hold-down nut 25 penetrated detector sleeve pipe 1402 and with the section of being threaded 1408, be threaded, after hold-down nut 25 was tightened, the bellmouth on hold-down nut 25 can be pressed on the tapered lower end of detector support member 22 on transmission cable, realized sealing.
Embodiment 10:
The present embodiment is on the basis of embodiment 9, and in order to obtain better sealing effectiveness, detector support member 22 preferably consists of silicon rubber.
Embodiment 11:
As shown in Figure 3, the present embodiment is on the basis of embodiment 9 or embodiment 10, set up insulation plug 15 and thinwalled insulation pipe 20, insulation plug 15 is arranged at the top of thinwalled insulation pipe 20, thinwalled insulation pipe 20 be arranged in described detector sleeve pipe 1402 and with described detector sleeve pipe 1402 interference fit.
In the present embodiment, neutron detector 19 is insulated plug 15 and thinwalled insulation pipe 20 and surrounds in detector sleeve pipe 1402, makes neutron detector 19 and 1402 isolation of detector sleeve pipe, realize neutron detector 19 and and detector sleeve pipe 1402 between insulation.Thinwalled insulation pipe 20 and detector sleeve pipe 1402 interference fit, can prevent that thinwalled insulation pipe 20 from dropping from detector sleeve pipe 1402.
Embodiment 12:
As shown in Fig. 1 ~ 3, the present embodiment on the basis of above-mentioned any one embodiment, is set up the hygrosensor 23 that is arranged at described sampling container 14 exits.
What those skilled in the art will appreciate that is that many variations and the structure that can further selectively apply above a plurality of exemplary embodiments descriptions form other possible embodiment of the present invention.Consider those skilled in the art's ability, this paper do not provide in detail or describe the content that likely repeats, but all combinations that otherwise comprise and may embodiment be the application's a part.
Below, a kind of more detailed embodiment is also disclosed, so that those skilled in the art can more clearly understand the present invention.
Embodiment 13:
As Fig. 1 ~ shown in Figure 11, boron concentration monitor device, comprise bracing frame 1, and bracing frame 1 top arranges base plate 2, and stacked being arranged on base plate 2 of polylith shielding slab forms shield, and adjacent shielding slab is connected with recess-mounted by the projection that cooperatively interacts.Be provided with lamina tecti 13 at the top of shield.Clad can 18 parcel shield and lamina tectis 13.
Sampling container 14 comprises shell 1403, be arranged at bottom (head) 1401 and the cover head 1405 at shell 1403 two ends, the detector sleeve pipe 1402 that runs through bottom (head) 1401, be arranged at the closure plate 1406 at detector sleeve pipe 1402 tops, embed the neutron source base 1404 of shell 1403, and be arranged at respectively entrance sleeve 1409 and discharge connection 1407 on bottom (head) 1401 and cover head 1405.The bottom of detector sleeve pipe 1402 is provided with the section of being threaded 1408.Be provided with insulation tube 20 in detector sleeve pipe 1402, the top of insulation tube 20 is provided with the insulation plug 15 that contacts with closure plate 1406.
Sampling container 14 is arranged in shield, and wherein entrance sleeve 1409, discharge connection 1407 and detector sleeve pipe 1402 pass shield and be communicated with outside.Be provided with hygrosensor 23 on discharge connection 1407.
Locating piece A1702 and locating piece B1708 that Neutron source assembly 17 comprises carrying shield 1701 and is arranged at carrying shield 1701 interior forward end, locating piece A1702 is symmetrical set and neutron source 24 is carried out circumferentially spacing, and locating piece B1708 is symmetrical arranged up and down neutron source 24 is carried out axial limiting.Carrying shield 1701 front ends are by 1703 sealings of carrying shield end plate.Also be provided with the arc pressuring plate 1709 that surrounds neutron source 24 in carrying shield 1701, arc pressuring plate 1709 is connected with the briquetting 1704 in being fixed on carrying shield 1701 by spring 1710.Also be provided with carrying shield inner screening piece 1705 in carrying shield 1701, be provided with shielding pad 1711 between carrying shield inner screening piece 1705 and briquetting 1704, the rearmost end of carrying shield 1701 is provided with the web joint 1706 of cap assembly 1707 and sealing carrying shield 1701 rear ends.
The present embodiment is when work, and boron water enters by entrance sleeve 1409, and the sampling container 14 of flowing through flows out from discharge connection 1407, carries out the boron water circulation in sampling loop.Neutron detector 19 coordinate with neutron source 24 to the boron in sampling loop water (
10B) survey and export the neutron pulse signal of expression boron concentration.The B solution temperature of hygrosensor 23 monitoring sampling loops.
As mentioned above, just can realize preferably the present invention.
Claims (10)
1. boron concentration monitor device, it is characterized in that: comprise shield, be arranged at the sampling container (14) in shield, be arranged at the neutron detector (19) in sampling container (14), the Neutron source assembly (17) that also comprises enclose inside, the front end of Neutron source assembly (17) pass shield and with sampling container (14), contact;
Also comprise and be arranged at the inner neutron source (24) of described Neutron source assembly (19).
2. boron concentration monitor device according to claim 1, it is characterized in that: described shield comprises the shielding slab of the stacked setting of polylith, adjacent shielding slab is connected with recess-mounted by the projection that cooperatively interacts.
3. boron concentration monitor device according to claim 1, it is characterized in that: described neutron source (24) is for cylindrical, the axis of described neutron source (24) vertically arranges, the axis of described neutron detector (3) vertically arranges, and the axial centre of described neutron source (24) is alignd with the axial centre of described neutron detector (3).
4. boron concentration monitor device according to claim 3, it is characterized in that: described Neutron source assembly (17) comprises carrying shield (1701) and the locating piece A(1702 that is arranged at carrying shield (1701) interior forward end) and locating piece B(1708), locating piece A(1702) be symmetrical set described neutron source (24) is carried out circumferentially spacing, locating piece B(1708) be symmetrical arranged up and down described neutron source (24) carried out axial limiting.
5. boron concentration monitor device according to claim 4, it is characterized in that: described Neutron source assembly (17) also comprises the briquetting (1704) that is fixed in described carrying shield (1701), be arranged at the spring (1710) of briquetting (1704) front end, arc pressuring plate (1709), arc pressuring plate (1709) is connected with spring (1710) and with described neutron source (24), contacts, and arc pressuring plate (209) is pressed on described locating piece A(1702 by spring (1710) with described neutron source (24)) on.
6. boron concentration monitor device according to claim 4 is characterized in that: described Neutron source assembly (17) also comprises the carrying shield inner screening piece (1705) that is arranged in described carrying shield (1701).
7. boron concentration monitor device according to claim 1, it is characterized in that: described sampling container (14) comprises shell (1403) and neutron source base (1404), neutron source base (1404) embeds in shell (1403), and the front end of described Neutron source assembly (17) embeds in neutron source base (1404).
8. boron concentration monitor device according to claim 7, is characterized in that: the detector support member (22) that also comprises HN connector (21) and tubular;
Described sampling container (14) also comprises detector sleeve pipe (1402), detector sleeve pipe (1402) is vertical to be arranged, the upper end of detector sleeve pipe (1402) is arranged in described shell (1403), the lower end of detector sleeve pipe (1402) is positioned at outside described shell (1403), the lower end of detector sleeve pipe (1402) is provided with the section of being threaded (1408), and described neutron detector (19) is arranged in detector sleeve pipe (1402);
The lower end of detector support member (22) is taper, detector support member (22) penetrates from the bottom to top in detector sleeve pipe (1402) and by HN connector (21) and is connected with described neutron detector (19), the lower end of detector support member (22) is positioned at outside detector sleeve pipe (1402), and the transmission cable of described neutron detector (19) is derived by the endoporus of detector support member (22);
Also comprise the hold-down nut (25) that offers bellmouth, hold-down nut (25) is threaded with the section of being threaded (1408), and the bellmouth of hold-down nut (25) is pressed on the lower end of detector support member (22) on the transmission cable of described neutron detector (19).
9. boron concentration monitor device according to claim 8, it is characterized in that: also comprise insulation plug (15) and thinwalled insulation pipe (20), insulation plug (15) is arranged at the top of thinwalled insulation pipe (20), thinwalled insulation pipe (20) be arranged in described detector sleeve pipe (1402) and with described detector sleeve pipe (1402) interference fit.
10. boron concentration monitor device according to claim 1, is characterized in that: also comprise the hygrosensor (23) that is arranged at described sampling container (14) exit.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464853A (en) * | 2014-11-27 | 2015-03-25 | 中国船舶重工集团公司第七一九研究所 | On-line boron concentration monitoring device |
| CN104485141A (en) * | 2014-12-11 | 2015-04-01 | 中国核动力研究设计院 | Calibration device for measurement parameters of nuclear power station boron concentration measurement system |
| CN106205753A (en) * | 2016-08-02 | 2016-12-07 | 中国核动力研究设计院 | Nuclear power station horizontal tube wire type boron concentration detecting devices |
| CN109473185A (en) * | 2018-11-13 | 2019-03-15 | 中国核动力研究设计院 | A kind of test device and its test method of robotics reactor shut-off system |
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| US6252923B1 (en) * | 1999-08-10 | 2001-06-26 | Westinghouse Electric Company Llc | In-situ self-powered monitoring of stored spent nuclear fuel |
| CN2496019Y (en) * | 2001-09-30 | 2002-06-19 | 南京瞬发科技应用研究所 | Coal sample container and coal quatity detecting apparatus therewith |
| US20030225531A1 (en) * | 2002-06-03 | 2003-12-04 | Lingren Clinton L. | Method and apparatus for analysis of elements in bulk substance |
| CN2833584Y (en) * | 2005-09-05 | 2006-11-01 | 天津大学 | 10B abundance tester |
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| CN104485141A (en) * | 2014-12-11 | 2015-04-01 | 中国核动力研究设计院 | Calibration device for measurement parameters of nuclear power station boron concentration measurement system |
| CN104485141B (en) * | 2014-12-11 | 2017-01-18 | 中国核动力研究设计院 | Calibration device for measurement parameters of nuclear power station boron concentration measurement system |
| CN106205753A (en) * | 2016-08-02 | 2016-12-07 | 中国核动力研究设计院 | Nuclear power station horizontal tube wire type boron concentration detecting devices |
| CN109473185A (en) * | 2018-11-13 | 2019-03-15 | 中国核动力研究设计院 | A kind of test device and its test method of robotics reactor shut-off system |
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