阅读说明：本技术 一种核电站阀门纽扣式温度采集装置 (Nuclear power station valve button type temperature acquisition device ) 是由 王彤臣 刘晓龙 吴明星 李若鲲 赵岳 赵海强 张�雄 李恒敬 朱建斌 鲍宇 汤利 于 2021-01-29 设计创作，主要内容包括：本发明涉及一种核电站阀门纽扣式温度采集装置,包括筒体,筒体顶部上设有通孔和固定组件,筒体内部依次设有测温元件、弹簧垫片、固定盒体、温度变送器和压紧盖,测温元件依次穿过通孔和固定组件,测温元件与弹簧垫片抵接,弹簧垫片设置在固定盒体上,固定盒体与筒体内壁相卡接,温度变送器安装在固定盒体内并与筒体内壁相卡接,温度变送器分别与测温元件和数据存储模块连接,压紧盖与筒体卡接并与温度变送器贴合。本发明通过筒体、测温元件、弹簧垫片、固定盒体、温度变送器和压紧盖的配合设计,有效解决核电站对被测阀门检测温度存在无法持续检测,不能及时采集阀门的温度数据,现场安装工作量繁重和诸多不便,安全性较低等问题。(The invention relates to a valve button type temperature acquisition device for a nuclear power station, which comprises a barrel, wherein a through hole and a fixing assembly are arranged on the top of the barrel, a temperature measuring element, a spring gasket, a fixing box body, a temperature transmitter and a pressing cover are sequentially arranged in the barrel, the temperature measuring element sequentially penetrates through the through hole and the fixing assembly, the temperature measuring element is abutted to the spring gasket, the spring gasket is arranged on the fixing box body, the fixing box body is clamped with the inner wall of the barrel, the temperature transmitter is arranged in the fixing box body and clamped with the inner wall of the barrel, the temperature transmitter is respectively connected with the temperature measuring element and a data storage module, and the pressing cover is clamped with. According to the invention, through the matching design of the barrel, the temperature measuring element, the spring gasket, the fixed box body, the temperature transmitter and the pressing cover, the problems that the temperature detected by the valve to be detected by the nuclear power station cannot be continuously detected, the temperature data of the valve cannot be acquired in time, the field installation workload is heavy, the inconvenience is caused, the safety is low and the like are effectively solved.)

1. The utility model provides a nuclear power station valve button formula temperature acquisition device which characterized in that: the temperature measuring device comprises a cylindrical shell, the bottom of the cylindrical shell is an opening, a through hole and a fixing assembly are arranged on the top of the cylindrical shell, a temperature measuring element, a spring gasket, a fixing box body, a temperature transmitter and a pressing cover are sequentially arranged in the cylindrical shell, the front end of the temperature measuring element sequentially penetrates through the through hole and the fixing assembly, the rear end of the temperature measuring element is abutted to the spring gasket, the spring gasket is detachably arranged on the fixing box body, the fixing box body is clamped with the inner wall of the cylindrical shell, the temperature transmitter is arranged in the fixing box body and clamped with the inner wall of the cylindrical shell, the temperature transmitter is respectively connected with the temperature measuring element and a data storage.

2. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: the fixing component comprises a fixing block and a plurality of supporting rods, a central hole is formed in the fixing block and corresponds to the through hole, and the fixing block is connected with the top of the barrel through the supporting rods.

3. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: the barrel inner wall is provided with a plurality of guide protrusions at intervals, the fixed box body is provided with a plurality of guide clamping grooves, and the guide clamping grooves are clamped with the guide protrusions.

4. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 3, wherein: and the temperature transmitter is provided with a limiting clamping groove corresponding to the guiding clamping groove, and the limiting clamping groove is clamped with the guiding protrusion.

5. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: a plurality of locking clamping grooves are formed in the lower portion of the barrel at intervals, the locking clamping grooves are designed to be L-shaped structures, a plurality of locking protrusions are arranged on the periphery of the pressing cover at intervals, and the locking protrusions and the locking clamping grooves are clamped.

6. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: and the spring gasket is provided with a threading hole.

7. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 6, wherein: the temperature measuring element is composed of a thermocouple probe and a thermocouple lead, the thermocouple probe penetrates through the through hole and the fixing component, two wiring terminals of the thermocouple lead respectively penetrate through the threading hole and are connected with a first input wiring terminal and a second input wiring terminal of the temperature transmitter, and a first output wiring terminal and a second output wiring terminal of the temperature transmitter are respectively connected with the data storage module.

8. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: the compressing cover is provided with an opening, and the opening is provided with a rotary clamping groove.

9. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: and a first power supply terminal and a second power supply terminal of the temperature transmitter are respectively electrically connected with an external power supply.

10. The button-type temperature acquisition device for the valve of the nuclear power plant as claimed in claim 1, wherein: the upper portion of barrel is equipped with the protection component, and the protection component includes fly leaf, left memory spring, right memory spring, infrared emission module and infrared ray receiving module, is equipped with the round hole on the middle part of fly leaf, and the fly leaf is connected with the top of barrel through left memory spring and right memory spring, and left memory spring and right memory spring are located the both sides of round hole respectively, and infrared emission module installs on the fly leaf, infrared emission module and the infrared ray receiving module signal connection of setting on the barrel inner wall, and infrared ray receiving module is connected with data storage module's singlechip.

Technical Field

The invention relates to the technical field of nuclear power stations, in particular to a button type temperature acquisition device for a valve of a nuclear power station.

Background

At present, in the daily operation process of a nuclear power station, a plurality of important valves need to be subjected to temperature measurement, but temperature measurement means also stay in an off-line measurement technical stage, and temperature data of the upstream and the downstream of the valves are measured mainly by adopting an infrared imager, an infrared thermometer or a thermocouple and the like.

However, the temperature of the nuclear power plant valve is collected by an off-line measurement mode, which has the following problems: 1. some discrete points of temperature data acquired in an off-line mode cannot continuously monitor the temperature of the valve and cannot track the trend of temperature parameters; 2. during the normal operation of the unit, the action time of the valve is not fixed, so that the temperature data acquisition of the valve cannot be carried out in time when the valve is opened and closed; 3. for part of high-temperature valves, the outer layer of the valve is wrapped with a heat-insulating layer, when an infrared imager or an infrared thermometer is used, a scaffold needs to be erected, the heat-insulating layer needs to be removed, the workload is heavy, other equipment is easy to touch, and the safety of a unit is threatened; 4. for acquiring the temperature data of the valve in a thermocouple mode, an instrument is manually carried to read the thermoelectric even data on site; 5. in the field of the traditional thermocouple acquisition device, a long thermocouple wire needs to be arranged, so that the field installation is not facilitated, and the thermocouple acquisition device is easy to damage.

Disclosure of Invention

The invention aims to provide a button type temperature acquisition device for a valve of a nuclear power station, aiming at the defects of the prior art, and the button type temperature acquisition device for the valve of the nuclear power station effectively solves the problems that the temperature detected by the valve to be detected cannot be continuously detected, temperature data cannot be acquired in time, the field installation workload is heavy and inconvenient, the safety is low and the like by the matched design of a cylinder body, a temperature measuring element, a spring gasket, a fixed box body, a temperature transmitter and a pressing cover.

The technical scheme adopted by the invention is as follows:

the utility model provides a nuclear power station valve button formula temperature acquisition device, the novel nipple rectifier comprises a cylindrical shel, the barrel bottom is the opening, be equipped with through-hole and fixed subassembly on the barrel top, the inside temperature element that is equipped with in proper order of barrel, spring shim, fixed box body, temperature transmitter and compress tightly the lid, the temperature element front end passes through-hole and fixed subassembly in proper order, temperature element rear end and spring shim butt, spring shim dismantlement formula sets up on fixed box body, fixed box body and barrel inner wall looks joint, temperature transmitter install in fixed box body and with barrel inner wall joint, temperature transmitter is connected with temperature element and data storage module respectively, compress tightly lid periphery and barrel lower part joint and laminate with temperature transmitter.

Furthermore, the fixed component comprises a fixed block and a plurality of supporting rods, a central hole is formed in the fixed block and corresponds to the through hole, and the fixed block is connected with the top of the barrel through the supporting rods.

Furthermore, a plurality of guide protrusions are arranged on the inner wall of the barrel at intervals, a plurality of guide clamping grooves are formed in the fixed box body, and the guide clamping grooves are connected with the guide protrusions in a clamped mode.

Furthermore, a limiting clamping groove corresponding to the guiding clamping groove is arranged on the temperature transmitter, and the limiting clamping groove is connected with the guiding protrusion in a clamped mode.

Furthermore, a plurality of locking clamping grooves are formed in the lower portion of the barrel at intervals, the locking clamping grooves are designed to be L-shaped structures, a plurality of locking protrusions are arranged on the periphery of the pressing cover at intervals, and the locking protrusions and the locking clamping grooves are clamped.

Furthermore, a threading hole is formed in the spring gasket.

Furthermore, the temperature measuring element is composed of a thermocouple probe and a thermocouple lead, the thermocouple probe penetrates through the through hole and the fixing component, two wiring terminals of the thermocouple lead respectively penetrate through the threading hole and are connected with a first input wiring terminal and a second input wiring terminal of the temperature transmitter, and a first output wiring terminal and a second output wiring terminal of the temperature transmitter are respectively connected with the data storage module.

Furthermore, the pressing cover is provided with an opening, and the opening is provided with a rotary clamping groove.

Furthermore, a first power supply terminal and a second power supply terminal of the temperature transmitter are respectively electrically connected with an external power supply.

Further, the upper portion of barrel is equipped with the protection component, and the protection component includes fly leaf, left memory spring, right memory spring, infrared emission module and infrared ray receiving module, is equipped with the round hole on the middle part of fly leaf, and the fly leaf is connected with the top of barrel through left memory spring and right memory spring, and left memory spring and right memory spring are located the both sides of round hole respectively, and infrared emission module installs on the fly leaf, infrared emission module and the infrared ray receiving module signal connection of setting on the barrel inner wall, and infrared ray receiving module is connected with data storage module's singlechip.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention has simple structure and convenient use, and effectively solves the problems that the temperature detected by the valve to be detected in the nuclear power station can not be continuously detected, temperature data can not be acquired in time, the field installation workload is heavy and inconvenient, the safety is lower and the like through the matching design of the cylinder, the temperature measuring element, the spring gasket, the fixed box body, the temperature transmitter and the pressing cover.

2. The invention can realize real-time online monitoring of the temperature of the measured valve and form a trend record, does not need to dismantle the heat preservation, and does not cause the risk of shutdown and shutdown of a unit caused by misoperation of equipment.

3. The thermocouple probe is arranged in the barrel body, and the barrel body effectively protects the thermocouple probe, so that the thermocouple probe is not easily damaged, the use effect of the thermocouple probe is greatly improved, and the service life of the thermocouple probe is prolonged.

4. The front end of the thermocouple probe is attached to the outer surface of the valve to be detected, the thermocouple probe is used for detecting the temperature of the valve to be detected, the thermocouple probe sends the temperature parameter of the valve to be detected to the temperature transmitter, and the temperature transmitter processes the temperature parameter and transmits the processed temperature parameter to the data storage module for storage.

Drawings

FIG. 1 is a schematic overall structure diagram according to a first embodiment;

FIG. 2 is a schematic structural view of a barrel according to an embodiment;

FIG. 3 is a schematic structural diagram of a temperature measuring device according to an embodiment;

FIG. 4 is a schematic diagram of a spring washer according to an embodiment;

FIG. 5 is a schematic structural diagram of a fixing box according to an embodiment;

FIG. 6 is a schematic diagram of a temperature transmitter according to an embodiment;

FIG. 7 is a schematic diagram of a compression cap according to an embodiment;

FIG. 8 is a schematic structural view of the second embodiment;

in the figure: 1. a barrel; 1a, fixing blocks; 1b, a support rod; 1c, locking a clamping groove; 1d, a guide projection; 1e, a through hole; 2. a thermocouple probe; 2a, thermocouple lead wires; 3. a spring washer; 3a, threading holes; 4. fixing the box body; 4a, a wire inlet hole; 4b, a guide clamping groove; 5. a temperature transmitter; 5a, a limiting clamping groove; 5b, wiring holes; 51. a first input terminal; 52. a second input terminal; 53. a first power supply terminal; 54. a second power supply terminal; 55. a first output terminal; 56. a second output terminal; 6. a compression cover; 6a, locking protrusions; 6b, opening a hole; 6c, rotating the clamping groove; 71. a left memory spring; 72. a right memory spring; 81. an infrared emission module; 82. an infrared receiving module; 9. a movable plate; 10. a central bore; 11. a circular hole.

Detailed Description

In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 7, the invention provides a nuclear power station valve button type temperature acquisition device, which comprises a cylinder body 1, wherein the bottom of the cylinder body 1 is provided with an opening, the top of the cylinder body 1 is provided with a through hole 1e and a fixing component, the through hole 1e is positioned in the center of the top of the cylinder body 1, the cylinder body 1 is arranged on the surface of a valve to be detected through the fixing component, a temperature measuring element, a spring gasket 3, a fixing box body 4, a temperature transmitter 5 and a pressing cover 6 are sequentially arranged in the cylinder body 1, the front end of the temperature measuring element sequentially penetrates through the through hole 1e and the fixing component, the temperature measuring element is tightly attached to the outer surface of the valve to be detected, the temperature measuring element is used for detecting the temperature of the valve to be detected, the temperature measuring element sends the temperature parameter of the valve to be detected to the temperature transmitter 5, the temperature transmitter 5 processes the temperature parameter and transmits the processed temperature parameter, the spring gasket 3 has elasticity, the spring gasket 3 is detachably arranged on the top of the fixed box body 4, the fixed box body 4 is provided with a wire inlet hole 4a, two wiring ends of a thermocouple lead wire 2a conveniently penetrate through the wire inlet hole 4a to be connected with the temperature transmitter 5, the fixed box body 4 is designed into a groove structure, the fixed box body 4 is clamped with the inner wall of the barrel body 1, the fixed box body 4 can move in the barrel body 1 along the axial direction of the barrel body and cannot rotate along the radial direction of the barrel body, the temperature transmitter 5 is provided with a wiring hole 5b, a thermocouple wire conveniently penetrates through the wiring hole 5b to be connected with the temperature transmitter 5, the temperature transmitter 5 is arranged in the fixed box body 4 and is clamped with the inner wall of the barrel body 1, the temperature transmitter 5 is arranged in the fixed box body 4 and effectively plays a protection role on the temperature transmitter 5, the temperature transmitter 5 is respectively connected with a temperature measuring element and a data storage module, the periphery, specifically, temperature element, spring gasket 3, fixed box body 4, temperature transmitter 5 and compress tightly lid 6 and install inside barrel 1 in proper order, through the mating reaction who compresses tightly lid 6, fixed box body 4 and barrel 1, utilize spring gasket 3 to pass through the through-hole 1e and the fixed subassembly of barrel 1 with temperature element's front end and be closely attached with the valve that is surveyed, temperature element can detect its temperature with the temperature.

Specifically, the fixing assembly comprises a fixing block 1a and a plurality of supporting rods 1b, a central hole 10 is formed in the fixing block 1a, the central hole 10 corresponds to the through hole 1e, and the fixing block 1a is connected with the top of the barrel 1 through the supporting rods 1 b. The fixed block 1a is connected with the valve to be tested in a welding or disassembling mode, and the barrel 1 is fixed on the outer surface of the valve to be tested through the fixed block 1a and the supporting rod 1 b.

Specifically, a plurality of guide protrusions 1d are arranged on the inner wall of the barrel body 1 at intervals, a plurality of guide clamping grooves 4b are arranged on the fixed box body 4, and the guide clamping grooves 4b are clamped with the guide protrusions 1 d. The fixing box 4 is connected with the guide protrusion 1d on the inner wall of the barrel 1 through the guide slot 4b, so that the fixing box 4 can move along the axis of the guide protrusion 1d and the fixing box 4 is prevented from rotating radially in the barrel 1.

Specifically, the temperature transmitter 5 is provided with a limiting clamping groove 5a corresponding to the guiding clamping groove 4b, and the limiting clamping groove 5a is clamped with the guiding protrusion 1 d. The limiting clamping groove 5a of the temperature transmitter 5 is matched with the guiding protrusion 1d of the cylinder 1, the temperature transmitter 5 is connected with the guiding protrusion 1d on the inner wall of the cylinder 1 through the limiting clamping groove 5a, so that the temperature transmitter 5 can axially move along the guiding protrusion 1d, and the temperature transmitter 5 is prevented from radially rotating in the cylinder 1.

Specifically, a plurality of locking clamping grooves 1c are arranged on the lower portion of the barrel body 1 at intervals, the locking clamping grooves 1c are designed to be L-shaped structures, a plurality of locking protrusions 6a are arranged on the periphery of the pressing cover 6 at intervals, and the locking protrusions 6a are connected with the locking clamping grooves 1c in a clamped mode. The locking clamping groove 1c is matched with the locking protrusion 6a, and the pressing cover 6 can be screwed in the locking clamping groove 1c of the barrel body 1 through the locking protrusion 6a, so that the installation and the disassembly are convenient.

Specifically, the spring washer 3 is provided with a threading hole 3 a. Two wiring ends of the thermocouple lead wire 2a are conveniently connected with the temperature transmitter 5 through the threading holes 3 a.

Specifically, the temperature measuring element is composed of a thermocouple probe 2 and a thermocouple lead 2a, the thermocouple probe 2 penetrates through the through hole 1e and the fixing component, two terminals of the thermocouple lead 2a penetrate through the threading hole 3a respectively and are connected with a first input terminal 51 and a second input terminal 52 of the temperature transmitter 5, and a first output terminal 55 and a second output terminal 56 of the temperature transmitter 5 are connected with the data storage module respectively. The thermocouple probe 2 sequentially penetrates through the through hole 1e of the cylinder body 1 and the fixing component to be tightly attached to the outer surface of the valve to be measured through the extrusion action of the spring gasket 3 and the pressing cover 6, so that the inaccurate measurement of the temperature data of the valve to be measured caused by the virtual connection of the thermocouple probe 2 is avoided; the thermocouple probe 2 sends the temperature parameter of the measured valve to the temperature transmitter 5 through the thermocouple lead 2a, and the temperature transmitter 5 further sends the temperature parameter to the data storage module for storage after processing.

Specifically, the pressing cover 6 is provided with an opening 6b, and the opening 6b is provided with a rotary clamping groove 6 c. A straight screwdriver can be inserted into the rotary clamping groove 6c of the pressing cover 6, the locking protrusion 6a of the pressing cover 6 is aligned with and inserted into the locking clamping groove 1c of the cylinder 1, the straight screwdriver is rotated, the pressing cover 6 is screwed on the lower portion of the cylinder 1, the connection between the straight screwdriver and the cylinder 1 is stable, and the straight screwdriver is not easy to fall off; the connecting wire of the data storage module and the connecting wire of the external power supply respectively penetrate through the opening 6b to be connected with the temperature transmitter 5.

Specifically, the first power terminal 53 and the second power terminal 54 of the temperature transmitter 5 are electrically connected to an external power source through wires, respectively. The external power supply supplies power to the temperature transmitter 5, and the temperature transmitter 5 is ensured to work normally.

The data storage module and the external power source are all common knowledge known to those skilled in the art, please refer to the prior art, and are not described in detail herein.

The working principle of the invention is as follows:

when the temperature of the valve to be measured is collected, the cylinder 1 is fixed on the outer surface of the valve to be measured through the fixing block 1a, the thermocouple probe 2, the spring gasket 3, the fixing box 4, the temperature transmitter 5 and the pressing cover 6 are sequentially arranged in the cylinder 1, the thermocouple probe 2 penetrates through the through hole 1e of the cylinder 1 and the central hole 10 of the fixing block 1a and is pressed on the outer surface of the valve to be measured through the spring gasket 3, the temperature of the valve to be measured is detected by using the thermocouple probe 2, the problem that the temperature of the valve is detected inaccurately due to the fact that the thermocouple probe 2 is connected to the valve to be measured in a virtual mode is avoided, as the thermocouple probe 2 penetrates through the threading hole 3a and the wire inlet 4a of the thermocouple lead 2a and is connected with the first input terminal 51 and the second input terminal 52 of the temperature transmitter 5 respectively, and the first output terminal 55 and the second output terminal 56 of the temperature transmitter 5 are connected with, the thermocouple probe 2 sends the temperature parameter of the measured valve to the temperature transmitter 5, and the temperature transmitter 5 processes the temperature parameter and transmits the processed temperature parameter to the data storage module for storage.

Example two

The difference between this embodiment and the first embodiment is: the upper portion of barrel 1 is equipped with the protection component, the protection component includes fly leaf 9, left memory spring 71, right memory spring 72, infrared emission module 81 and infrared ray receiving module 82, be equipped with round hole 11 on the middle part of fly leaf 9, fly leaf 9 is connected with the top of barrel 1 through left memory spring 71 and right memory spring 72, left memory spring 71 and right memory spring 72 are located the both sides of round hole 11 respectively, infrared emission module 81 is installed on fly leaf 9, infrared emission module 81 and the infrared ray receiving module 82 signal connection who sets up on the barrel 1 inner wall, infrared ray receiving module 82 and data storage module's singlechip signal connection.

When the thermocouple probe is used, the front end part of the thermocouple probe 2 sequentially penetrates through the round hole 11 of the movable block, the through hole 1e of the barrel body 1 and the central hole 10 of the fixed block 1a, so that the thermocouple probe 2 can be in contact with the outer surface of a valve to be detected, data of the thermocouple probe 2 are convenient to monitor, the rear end part of the thermocouple probe 2 is clamped on the round hole 11 of the movable plate 9, the movable plate 9 upwards extrudes the left memory spring 71 and the right memory spring 72 under the action of the spring gasket 3 until the infrared emission module 81 on the movable plate 9 is aligned with the infrared receiving module 82 on the inner wall of the barrel body 1, and the infrared receiving module 82 feeds back to the single chip microcomputer.

If the spring washer 3 fails elastically (i.e. the spring washer 3 is prone to fatigue fracture under long-term action), the thermocouple probe 2 cannot be tightly attached to the surface of the valve to be tested, which may result in inaccurate data detected by the thermocouple probe 2, in order to prevent the above situation, the thermocouple probe 2 is separated from the surface of the valve to be tested through the movable plate 9 by using the elastic forces of the left memory spring 71 and the right memory spring 72, the infrared transmitting module 81 on the movable plate 9 is staggered from the infrared receiving module 82, the infrared receiving module 82 cannot receive the signal transmitted by the infrared transmitting module 81, the infrared receiving module 82 transmits the information to the single chip microcomputer, the single chip microcomputer transmits a stop instruction to the thermocouple probe 2, the thermocouple probe 2 stops working, so as to avoid the data acquired by the thermocouple probe 2 from being deviated, and in addition, the thermocouple probe 2 can be effectively protected, the phenomenon of damage is avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.