CN210243021U - Quick response armored thermal resistor of nuclear power plant - Google Patents
Quick response armored thermal resistor of nuclear power plant Download PDFInfo
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- CN210243021U CN210243021U CN201921347050.1U CN201921347050U CN210243021U CN 210243021 U CN210243021 U CN 210243021U CN 201921347050 U CN201921347050 U CN 201921347050U CN 210243021 U CN210243021 U CN 210243021U
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Abstract
The utility model relates to a thermal resistor technical field, and a nuclear power plant quick response armor thermal resistor is disclosed, including the terminal box, the protection tube, metal lead wire and resistive element, the upper end of protection tube and the lower extreme fixed connection of terminal box, the upper end of metal lead wire and the input fixed connection of terminal box, the lower extreme and the resistive element fixed connection of metal lead wire, resistive element is located the inside below setting of protection tube, the below of protection tube is equipped with the seal cover, the upper end of seal cover and the lower extreme fixed connection of protection tube, the inside of protection tube is equipped with the insulating tube of vertical setting, the upper end of insulating tube and the lower extreme fixed connection of terminal box, the metal lead wire is located the inside setting of insulating tube, and the lower extreme and the resistive element fixed connection of. The utility model discloses be convenient for install the thermal resistance, and be convenient for adjust the depth of detection of thermal resistance, still be convenient for overhaul the resistive element in the thermal resistance, the people of being convenient for use.
Description
Technical Field
The utility model relates to a thermal resistance technical field especially relates to a quick response armor thermal resistance of nuclear power plant.
Background
The thermal resistor is the most commonly used temperature detector in the middle and low temperature regions, the thermal resistor temperature measurement is based on the characteristic that the resistance value of a metal conductor increases along with the increase of the temperature, and the thermal resistor temperature measurement has the main characteristics of high measurement precision and stable performance. The platinum thermal resistor has the highest measurement accuracy, is widely applied to industrial temperature measurement and is made into a standard reference instrument, and most of the thermal resistors are made of pure metal materials.
At present, in the normal operating process of nuclear power plant, the inside high temperature of major loop in the reactor containment, high pressure, the high velocity of flow, in order can fast feedback out the fluidic temperature variation in the pipeline, thereby adjustment reactor core power, the last hot resistance thermometer that will install quick response of major loop pipeline, thereby realize accurate control coolant thermometer, however, in the prior art, the degree of depth that hot resistance thermometer inserted the pipeline when using is fixed, the pipeline of different diameters can't be adapted to, and the hot resistance is not convenient for dismantle the maintenance, therefore, provide a nuclear power plant quick response armor hot resistance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art thermistor thermometer and inserting the degree of depth of pipeline when using and be fixed, can't be adapted to the pipeline of different diameters, and the thermal resistance is not convenient for dismantle the problem of overhauing, and the quick response armor thermal resistance of nuclear power plant that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rapid response armored thermal resistor of a nuclear power plant comprises a junction box, a protection tube, a metal lead and a resistance element, wherein the upper end of the protection tube is fixedly connected with the lower end of the junction box, the upper end of the metal lead is fixedly connected with the input end of the junction box, the lower end of the metal lead is fixedly connected with the resistance element, the resistance element is arranged below the inner part of the protection tube, a sealing sleeve is arranged below the protection tube, the upper end of the sealing sleeve is fixedly connected with the lower end of the protection tube, an insulating tube is vertically arranged inside the protection tube, the upper end of the insulating tube is fixedly connected with the lower end of the junction box, the metal lead is arranged inside the insulating tube, the lower end of the insulating tube is fixedly connected with the resistance element, a flange is sleeved on the tube wall of the protection tube, a sleeve is fixedly connected with the, and the surface of the sleeve is provided with a fixing mechanism.
Preferably, the upper end of the sealing sleeve is fixedly connected with an external thread cylinder, and the lower end of the inner side wall of the protection tube is provided with an internal thread matched with the external thread cylinder and is in threaded connection with the external thread cylinder.
Preferably, a plurality of evenly distributed fixing holes are formed in the upper end of the flange, the fixing holes are distributed in an annular shape, and fixing bolts are arranged inside the fixing holes.
Preferably, the fixing mechanism comprises two locking bolts, and two threaded holes matched with the locking bolts are formed in the side wall of the sleeve.
Preferably, the protection tube is made of stainless steel material.
Compared with the prior art, the utility model provides a quick response armor thermal resistance of nuclear power plant possesses following beneficial effect:
1. this quick response armor thermal resistance of nuclear power plant can fix thermal resistance and the pipeline that awaits measuring through the flange that is equipped with and a plurality of fixing bolt, can adjust the depth of insertion of protection tube through the sleeve that is equipped with and two locking bolts, is convenient for carry out temperature detection to different degree of depth pipelines.
2. This quick response armor thermal resistance of nuclear power plant can protect inside metal lead wire and resistive element through the protection tube that is equipped with, through the seal cover and the internal thread section of thick bamboo that are equipped with, is convenient for take out resistive element and overhauls, and the people of being convenient for use.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses be convenient for install the thermal resistance, and be convenient for adjust the depth of detection of thermal resistance, still be convenient for overhaul the resistive element in the thermal resistance, the people of being convenient for use.
Drawings
Fig. 1 is a schematic structural diagram of a rapid response armored thermal resistor of a nuclear power plant according to the present invention;
fig. 2 is a schematic cross-sectional view of fig. 1.
In the figure: the structure comprises a junction box 1, a protection tube 2, a metal lead 3, a resistance element 4, a sealing sleeve 5, an insulating tube 6, a flange 7, a sleeve 8, an external thread cylinder 9, a fixing bolt 10 and a locking bolt 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a rapid response armored thermal resistor for a nuclear power plant comprises a junction box 1, a protection tube 2, a metal lead 3 and a resistance element 4, wherein the upper end of the protection tube 2 is fixedly connected with the lower end of the junction box 1, the upper end of the metal lead 3 is fixedly connected with the input end of the junction box 1, the lower end of the metal lead 3 is fixedly connected with the resistance element 4, the resistance element 4 is arranged below the inner part of the protection tube 2, a sealing sleeve 5 is arranged below the protection tube 2, the upper end of the sealing sleeve 5 is fixedly connected with the lower end of the protection tube 2, an insulating tube 6 which is vertically arranged is arranged inside the protection tube 2, the upper end of the insulating tube 6 is fixedly connected with the lower end of the junction box 1, the metal lead 3 is arranged inside the insulating tube 6, the lower end of the insulating tube 6 is fixedly connected with the resistance element 4, a flange, the sleeve 8 is sleeved with the protection tube 2 in a sliding mode, and a fixing mechanism is arranged on the surface of the sleeve 8.
The upper end fixedly connected with external screw thread section of thick bamboo 9 of seal cover 5, the inside wall lower extreme of protection tube 2 be equipped with external screw thread section of thick bamboo 9 assorted internal thread and with external screw thread section of thick bamboo 9 threaded connection, be convenient for dismantle seal cover 5 to be convenient for detect resistive element 4.
A plurality of evenly distributed's fixed orifices is seted up to the upper end of flange 7, and a plurality of fixed orifices are the annular and distribute, and the inside of fixed orifices is equipped with fixing bolt 10, is convenient for carry out fixed mounting, and convenient to detach with thermal resistance and pipeline that awaits measuring.
The fixing mechanism comprises two locking bolts 11, two threaded holes matched with the locking bolts 11 are formed in the side wall of the sleeve 8, the insertion depth of the protection tube 2 can be adjusted conveniently, and therefore the detection depth can be adjusted conveniently.
The protection tube 2 is made of stainless steel material, which can make the protection tube 2 firm and durable and not easy to corrode.
The utility model discloses in, during the use, insert the pipeline that awaits measuring with the lower extreme of thermal resistance, can carry out fixed mounting with thermal resistance and pipeline that awaits measuring through flange 7 and a plurality of fixing bolt 10 that are equipped with, adjust the depth of insertion of protection tube 2, adjust to suitable position after, can fix protection tube 2 through two locking bolt 11 that are equipped with, be convenient for detect the different degree of depth, the people of being convenient for use.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a quick response armoured thermal resistor of nuclear power plant, includes terminal box (1), protection tube (2), metal lead (3) and resistive element (4), its characterized in that, the upper end of protection tube (2) and the lower extreme fixed connection of terminal box (1), the upper end of metal lead (3) and the input fixed connection of terminal box (1), the lower extreme and resistive element (4) fixed connection of metal lead (3), resistive element (4) are located the inside below setting of protection tube (2), the below of protection tube (2) is equipped with seal cover (5), the upper end of seal cover (5) and the lower extreme fixed connection of protection tube (2), the inside of protection tube (2) is equipped with vertical insulating tube (6) that sets up, the upper end of insulating tube (6) and the lower extreme fixed connection of terminal box (1), metal lead (3) are located the inside setting of insulating tube (6), and the lower extreme and the resistance element (4) fixed connection of insulating tube (6), the pipe wall cover of protection tube (2) is equipped with flange (7), the upper end fixedly connected with sleeve (8) of flange (7), sleeve (8) cup joint with protection tube (2) slip, and the surface of sleeve (8) is equipped with fixed establishment.
2. The armored thermal resistor for the rapid response of the nuclear power plant as claimed in claim 1, wherein an external thread cylinder (9) is fixedly connected to the upper end of the sealing sleeve (5), and an internal thread matched with the external thread cylinder (9) is arranged at the lower end of the inner side wall of the protection tube (2) and is in threaded connection with the external thread cylinder (9).
3. The armored thermal resistor for the rapid response of the nuclear power plant according to claim 1, wherein the upper end of the flange (7) is provided with a plurality of fixing holes which are uniformly distributed, the plurality of fixing holes are distributed in an annular shape, and fixing bolts (10) are arranged inside the fixing holes.
4. The armored thermal resistor for rapid response of nuclear power plants according to claim 1, wherein the fixing mechanism comprises two locking bolts (11), and the side wall of the sleeve (8) is provided with two threaded holes matched with the locking bolts (11).
5. The rapid response armored thermal resistor of nuclear power plant according to claim 1, characterized in that the protection tube (2) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347050.1U CN210243021U (en) | 2019-08-20 | 2019-08-20 | Quick response armored thermal resistor of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347050.1U CN210243021U (en) | 2019-08-20 | 2019-08-20 | Quick response armored thermal resistor of nuclear power plant |
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| Publication Number | Publication Date |
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| CN210243021U true CN210243021U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921347050.1U Active CN210243021U (en) | 2019-08-20 | 2019-08-20 | Quick response armored thermal resistor of nuclear power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780886A (en) * | 2020-07-20 | 2020-10-16 | 肖叶 | Industrial thermometer sleeve |
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2019
- 2019-08-20 CN CN201921347050.1U patent/CN210243021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780886A (en) * | 2020-07-20 | 2020-10-16 | 肖叶 | Industrial thermometer sleeve |
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