CN106843323B - Temperature regulating device and its application method for nuclear power plant reactor coolant system temp probe insulation temperature - Google Patents
Temperature regulating device and its application method for nuclear power plant reactor coolant system temp probe insulation temperature Download PDFInfo
- Publication number
- CN106843323B CN106843323B CN201710095729.5A CN201710095729A CN106843323B CN 106843323 B CN106843323 B CN 106843323B CN 201710095729 A CN201710095729 A CN 201710095729A CN 106843323 B CN106843323 B CN 106843323B
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- Prior art keywords
- temperature
- temp probe
- control cabinet
- insulation
- insulation division
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
Abstract
The present invention relates to a kind of temperature regulating devices for nuclear power plant reactor coolant system temp probe insulation temperature, it includes that the temp probe in heat source is inserted at least lower end, the control cabinet being connected with the temp probe, the gassing pipe for being mounted on the bracket of the control cabinet bottom and being mounted on the control cabinet, the temp probe includes metal sleeve, the temperature-sensing element for being mounted on the insulation division of the metal sleeve upper end and being arranged in the metal sleeve, the insulation division is connected by temperature measuring mechanism with the control cabinet, the gassing pipe is corresponding with the insulation division.By the way that the insulation division of temp probe is connected by temperature measuring mechanism with control cabinet, when the temperature of insulation division is more than the numerical value of setting, control cabinet can drive gassing pipe to be purged to obtain cooling effect to insulation division in this way, so that the temperature of insulating materials is in the range of safety.
Description
Technical field
The present invention relates to a kind of temperature regulating devices of temp probe, and in particular to one kind is used for nuclear power plant reactor coolant system
The temperature regulating device and its application method of system temp probe insulation temperature.
Background technique
The temp probe needs that nuclear power plant reactor coolant system uses are calibrated when in use or during using.
The temp probe size is special, and length only has about 200mm, diameter about 9.6mm；When calibrating such probe, need to be warming up to temperature
Up to 326 DEG C or so of degree, when temperature-sensing element is in high temperature, the temperature at top is uncontrolled reachable because heat transfer rises rapidly
To 100 DEG C or so, causes insulating materials heated, influence its insulation performance.Therefore, when being calibrated to it, therefore, to assure that its
The temperature of insulating materials is no more than 60 DEG C, still lacks temperature regulating device matched with its at present.
Summary of the invention
It is provided the invention aims to overcome the deficiencies in the prior art a kind of for nuclear power plant reactor coolant system
The temperature regulating device of system temp probe insulation temperature.
In order to achieve the above objectives, the technical scheme adopted by the invention is as follows: one kind be used for nuclear power plant reactor coolant system
The temperature regulating device of system temp probe insulation temperature, it includes that temp probe and temperature spy in heat source are inserted at least lower end
Control cabinet that head is connected, the gassing pipe that is mounted on the bracket of the control cabinet bottom and is mounted on the control cabinet,
The temp probe includes metal sleeve, the insulation division for being mounted on the metal sleeve upper end and is arranged in the metal sleeve
Interior temperature-sensing element, the insulation division are connected by temperature measuring mechanism with the control cabinet, the gassing pipe and the insulation
Portion is corresponding and it is away from junction of the temperature measuring mechanism and the insulation division.
Optimally, the bracket can stretch up and down.
Optimally, the temperature-sensing element is platinum resistance.
Optimally, the temperature measuring mechanism includes the patch type thermometer and one end and patch for being pasted onto the insulation division surface
The thermometric line that chip thermometer is connected and the other end is connected with control cabinet.
It is a kind of above-mentioned exhausted for nuclear power plant reactor coolant system temp probe another object of the present invention is to provide
The application method of the temperature regulating device of edge temperature, it the following steps are included:
(a) temp probe at least lower end is inserted into the heat source, then by the temperature of the heat source be set as to
Testing temperature simultaneously heats the temp probe using it；
(b) temperature of the insulation division is measured using the temperature measuring mechanism, then by measurement feedback to coupled
The control cabinet connect judges and control: when the result of measurement is higher than the upper limit value of setting, through the gassing pipe to institute
It states insulation division and carries out purging cooling；When lower limit value of the result of measurement lower than setting, stop purging.
Optimally, in step (b), when the result of measurement is higher than 5 DEG C of upper limit value of setting or more, the control cabinet alarm,
Manual intervention.
Optimally, in step (b), before the temperature for measuring the insulation division using the temperature measuring mechanism, the branch is adjusted
The height of frame makes the gassing pipe be directed at the insulation division.
Due to the above technical solutions, the present invention has the following advantages over the prior art: the present invention is used for nuclear power
It stands the temperature regulating device of reactor coolant loop temp probe insulation temperature, by the way that the insulation division of temp probe is passed through temperature measuring machine
Structure is connected with control cabinet, and when the temperature of insulation division is more than the numerical value of setting, control cabinet can drive gassing pipe to exhausted in this way
Edge is purged to obtain cooling effect, so that the temperature of insulating materials is in the range of safety.
Detailed description of the invention
Fig. 1 is structure of the present invention for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature
Schematic diagram；
Wherein, 1, heat source；2, temp probe；21, metal sleeve；22, temperature-sensing element；23, insulation division；3, control cabinet；4,
Temperature measuring mechanism；41, thermometric line；42, patch type thermometer；5, gassing pipe；6, bracket.
Specific embodiment
The preferred embodiment of the invention is described in detail below in conjunction with attached drawing.
Temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature as shown in Figure 1, it is main
It to include the components such as heat source 1, temp probe 2, control cabinet 3, temperature measuring mechanism 4 and gassing pipe 5.
Wherein, temp probe 2 be arranged in heat source 1 so that its at least lower end is inserted；It is inserted into including at least lower end
Metal sleeve 21 in heat source 1, the insulation division 23(for being mounted on 21 upper end of metal sleeve are made by insulating materials) and setting exist
Temperature-sensing element 22 in metal sleeve 21；In the present embodiment, temperature-sensing element 22 is platinum resistance, and temperature-measuring range is 0 DEG C ~ 600 DEG C,
The mode of connection is four-wire system.Control cabinet 3 is connected with temp probe 2, for receiving the signal of the transmission of temp probe 2, thus right
The temperature of insulation division 23 is controlled；Its working power is 220V(AC), 50Hz, its temperature controlling range can be set to
20 DEG C ~ 60 DEG C, temperature control accuracy is ± 1 DEG C.Gassing pipe 5 is mounted on control cabinet 3, it is opposite with the position of insulation division 23
It answers, purging of supplying gas can be carried out to insulation division 23 under the control of control cabinet 3, so that the temperature of insulation division 23 is down to safe range
It is interior.Bracket 6 is mounted on the bottom of control cabinet 3, in the present embodiment, (such as can be arranged to bracket 6 up and down using routine techniques
Two sections of connection, upper section is connected thereto by being mounted on the sliding rail of lower section medial surface) bracket 6 is arranged to stretch up and down
, the height that can adjust control cabinet 3 in this way makes gassing pipe 5 corresponding with insulation division 23.In the present embodiment, insulation division
23 are connected by temperature measuring mechanism 4 with control cabinet 3, so that control cabinet 3 accurately receives the temperature signal of insulation division 23；And it blows
Pipeline 5 cannot be directed at temperature measuring mechanism 4 and the junction of insulation division 23 is blown, and need away from temperature measuring mechanism 4 and insulation division 23
Junction, to ensure the accuracy of thermometric；Temperature measuring mechanism 4 include be pasted onto 23 surface of insulation division patch type thermometer 42 and
The thermometric line 41 that one end is connected with patch type thermometer 42 and the other end is connected with control cabinet 3.
The knot of the above-mentioned temperature regulating device to the present invention for nuclear power plant reactor coolant system temp probe insulation temperature
Structure is described, and is described further below to its working principle and application method.
The application method of the above-mentioned temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature, it
The following steps are included:
(a) by at least lower end insertion heat source 1 of temp probe 2, then the temperature of heat source 1 is set as to testing temperature simultaneously
Being heated using it to temp probe 2 (in the present embodiment, can set the heating temperature of heat source 1 as 326 DEG C, i.e., temperature is visited
First 2 calibration temperature is 326 DEG C)；
(b) height of adjusting bracket 6 makes gassing pipe 5 be directed at insulation division 23；Temperature measuring mechanism 4 is recycled to measure insulation division 23
Temperature, then can be using existing control cabinet to coupled control cabinet 3(control cabinet 3 by measurement feedback
Can, it generally comprises PLC controller, coupled display, coupled wind pushing mechanism and coupled
The alarm connect；PLC controller can be used for handling the thermal signal of the feedback of patch type thermometer 42 and corresponding temperature be calculated,
And shown over the display) judge and control: when the result of measurement is higher than in PLC controller the upper limit value that sets (such as
In the present embodiment, 50 DEG C be can be set as) when, wind pushing mechanism works under the control of PLC controller, and through gassing pipe 5
Purging cooling is carried out to insulation division 23；When the result of measurement (as in the present embodiment, can be set as lower than the lower limit value of setting
40 DEG C) when, stop purging；When temperature rises again, above-mentioned steps are recycled, the temperature control purpose to insulating materials is reached.If
When the result of measurement is higher than setting 5 DEG C of upper limit value or more, might mean that purging cooling is invalid, at this time alarm equipment alarm and into
Row manual intervention makes probe insulation position be in the temperature range of safety, to protect insulating material properties intact.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature, it is characterised in that: it
Including at least lower end insertion heat source (1) in temp probe (2), be connected with the temp probe (2) control cabinet (3), pacify
Bracket (6) mounted in the control cabinet (3) bottom and the gassing pipe (5) that is mounted on the control cabinet (3), the temperature
Probe (2) includes metal sleeve (21), the insulation division (23) for being mounted on the metal sleeve (21) upper end and is arranged described
Temperature-sensing element (22) in metal sleeve (21), the insulation division (23) are connected by temperature measuring mechanism (4) with the control cabinet (3)
It connects, the gassing pipe (5) is corresponding with the insulation division (23) and it is away from the temperature measuring mechanism (4) and the insulation division
(23) junction.
2. it is used for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature according to claim 1,
It is characterized by: the bracket (6) can stretch up and down.
3. it is used for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature according to claim 1,
It is characterized by: the temperature-sensing element (22) is platinum resistance.
4. it is used for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature according to claim 1,
It is characterized by: the temperature measuring mechanism (4) include be pasted onto the insulation division (23) surface patch type thermometer (42) and
The thermometric line (41) that one end is connected with patch type thermometer (42) and the other end is connected with control cabinet (3).
5. any temperature control for being used for nuclear power plant reactor coolant system temp probe insulation temperature in Claims 1-4
The application method of device, which is characterized in that it the following steps are included:
(a) temp probe (2) at least lower end is inserted into the heat source (1), then sets the temperature of the heat source (1)
To be heated to testing temperature and using it to the temp probe (2)；
(b) temperature that the insulation division (23) is measured using the temperature measuring mechanism (4), then gives its phase for measurement feedback
The control cabinet (3) of connection judges and control: when the result of measurement is higher than the upper limit value of setting, through the gassing pipe
(5) Xiang Suoshu insulation division (23) carries out purging cooling；When lower limit value of the result of measurement lower than setting, stop purging.
6. according to claim 5 for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature
Application method, it is characterised in that: in step (b), when the result of measurement is higher than 5 DEG C of upper limit value of setting or more, the control cabinet
(3) it alarms, manual intervention.
7. according to claim 5 for the temperature regulating device of nuclear power plant reactor coolant system temp probe insulation temperature
Application method, it is characterised in that: in step (b), in the temperature for measuring the insulation division (23) using the temperature measuring mechanism (4)
Before, the height for adjusting the bracket (6) makes the gassing pipe (5) to be directed at the insulation division (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095729.5A CN106843323B (en) | 2017-02-22 | 2017-02-22 | Temperature regulating device and its application method for nuclear power plant reactor coolant system temp probe insulation temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095729.5A CN106843323B (en) | 2017-02-22 | 2017-02-22 | Temperature regulating device and its application method for nuclear power plant reactor coolant system temp probe insulation temperature |
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| Publication Number | Publication Date |
|---|---|
| CN106843323A CN106843323A (en) | 2017-06-13 |
| CN106843323B true CN106843323B (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710095729.5A Active CN106843323B (en) | 2017-02-22 | 2017-02-22 | Temperature regulating device and its application method for nuclear power plant reactor coolant system temp probe insulation temperature |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201873652U (en) * | 2010-12-11 | 2011-06-22 | 水煤浆气化及煤化工国家工程研究中心 | Protective device for flame detection probe |
| CN204509370U (en) * | 2015-01-27 | 2015-07-29 | 李兴旺 | A kind of temperature-detecting device of blast-furnace smelting molten iron |
| CN105741894A (en) * | 2016-03-30 | 2016-07-06 | 宁波奥崎自动化仪表设备有限公司 | 1E-grade reactor pile core temperature measurement equipment for nuclear power plant |
| CN206470626U (en) * | 2017-02-22 | 2017-09-05 | 苏州热工研究院有限公司 | Temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101220084B1 (en) * | 2011-03-04 | 2013-01-16 | 주식회사 우진 | Fast response time rtd for measuring the coolant temperature in a nuclear reactor |
-
2017
- 2017-02-22 CN CN201710095729.5A patent/CN106843323B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201873652U (en) * | 2010-12-11 | 2011-06-22 | 水煤浆气化及煤化工国家工程研究中心 | Protective device for flame detection probe |
| CN204509370U (en) * | 2015-01-27 | 2015-07-29 | 李兴旺 | A kind of temperature-detecting device of blast-furnace smelting molten iron |
| CN105741894A (en) * | 2016-03-30 | 2016-07-06 | 宁波奥崎自动化仪表设备有限公司 | 1E-grade reactor pile core temperature measurement equipment for nuclear power plant |
| CN206470626U (en) * | 2017-02-22 | 2017-09-05 | 苏州热工研究院有限公司 | Temperature regulating device for nuclear power plant reactor coolant system temp probe insulation temperature |
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| CN106843323A (en) | 2017-06-13 |
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