CN211178769U - Clamping type conical surface sealed multipoint thermocouple - Google Patents
Clamping type conical surface sealed multipoint thermocouple Download PDFInfo
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- CN211178769U CN211178769U CN201921982831.8U CN201921982831U CN211178769U CN 211178769 U CN211178769 U CN 211178769U CN 201921982831 U CN201921982831 U CN 201921982831U CN 211178769 U CN211178769 U CN 211178769U
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Abstract
The utility model relates to a clamping type conical surface sealed multipoint thermocouple, which comprises a junction box, a temperature module, a plurality of electrodes, a first flange, a second flange, a testing flange, a thermocouple core and a sealing plate, wherein the temperature module is connected with the plurality of electrodes; the test flange is arranged opposite to the first flange, the test flange is in sealing connection with the first flange through the second short section, the two ends of the test flange extend out of the sealing plate, the thermocouple core sequentially penetrates through the test flange, the second short section and the first flange to be connected with one end of the electrode, the other end of the electrode is connected with the temperature compensation line, the electrode compensation line sequentially penetrates through the second flange, the first short section and is connected with the secondary meter, and the thermocouple core is in sealing connection with the test flange. The medium is thoroughly isolated from the outside, the accuracy of the using process of the secondary meter is improved, and the service cycle of the product is ensured.
Description
Technical Field
The utility model belongs to the thermocouple field, concretely relates to sealed multiple spot thermocouple of centre gripping formula conical surface.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The multi-point thermocouple commonly used in the market at present is mostly only in a clamp sealing mode using a movable clamping sleeve, all thermocouple cores are directly connected into a junction box through the movable clamping sleeve, when the thermocouple cores meet the environment with strong corrosivity and high temperature and pressure, a medium easily leaks into the junction box, a corrosion transmitter module causes temperature display failure, the temperature measurement accuracy is reduced, and the service life is shortened. The existing thermocouple sealing strength can cause multi-point leakage of the thermocouple if gas with small molecular weight is encountered.
SUMMERY OF THE UTILITY MODEL
To solve the above problems in the prior art, it is an object of the present invention to provide a clamping type conical surface sealed multipoint thermocouple. The device realizes the measurement of high temperature and high pressure, has strong corrosivity, can not leak gas with small molecular weight, and is convenient to install, measure and maintain.
In order to solve the technical problem, the technical scheme of the utility model is that:
a clamping type conical surface sealed multipoint thermocouple comprises a junction box, a temperature module, a plurality of electrodes, a first flange, a second flange, a test flange, a thermocouple core and a sealing plate, wherein the temperature module is positioned in the junction box and is connected with the electrodes;
the testing flange is arranged opposite to the first flange, the testing flange is connected with the first flange in a sealing mode through the second short section, the electrode is vertically arranged on the sealing plate, the two ends of the electrode extend out of the sealing plate, the thermocouple core sequentially penetrates through the testing flange, the second short section and one end of the first flange and is connected with one end of the electrode, the other end of the electrode is connected with the temperature compensation line, the electrode compensation line sequentially penetrates through the second flange, the first short section and is connected with the secondary meter, and the thermocouple core is connected with the testing flange in a sealing mode.
The utility model discloses a sealed multiple spot thermocouple of centre gripping formula conical surface adopts the connection of toper electrode and tetrafluoro sealing member, thoroughly completely isolates medium and external, has improved the accuracy of the use of secondary table, has ensured product life cycle.
As a further technical scheme, a first groove and a second groove are respectively arranged at the opposite positions of the first flange and the second flange, and the cross sections of the first groove and the second groove are of circular structures.
As a further technical scheme, the sealing plate is in a shape matched with the groove, the outer side edge, the upper surface and the lower surface of the sealing plate are attached to the groove, and the third groove and the fourth groove are arranged at two ends of the middle of the sealing plate respectively.
As a further technical scheme, the plurality of electrodes are divided into a plurality of positive electrodes and a plurality of negative electrodes, a plurality of corresponding first through holes are formed between the third groove and the fourth groove of the sealing plate, the electrodes penetrate through the first through holes and are arranged in the first through holes, and the two ends of the electrodes extend out of the first through holes.
As a further technical scheme, a plurality of first through holes on the sealing plate are arranged in a circular ring shape and are divided into an inner circle and an outer circle, and the inner circle and the outer circle are respectively provided with electrodes with different polarities.
As a further technical scheme, a plurality of second through holes are formed in the test flange, a plurality of third through holes are formed in the first flange respectively, the second through holes are opposite to the third through holes, and the couple core sequentially penetrates through the second through holes and the third through holes to be connected with the electrodes.
As a further technical scheme, the first short section is of a hollow cylindrical structure, and the first short section is connected with the junction box and the second flange through welding.
As a further technical scheme, the second short section is composed of a sleeve and a first flange short section, the sleeve is of a hollow cylindrical structure, the sleeve is welded on the test flange, the first flange short section is welded on the first flange, and the sleeve is in threaded connection with the first flange short section.
As a further technical scheme, the thermocouple core is connected with the second through hole in the test flange through a movable clamping sleeve, the movable clamping sleeve is in threaded connection with the second through hole, the movable clamping sleeve is of a bolt structure and extends into the second through hole, one end of a nut of the movable clamping sleeve is clamped outside the second through hole, and one end of the nut of the movable clamping sleeve is located on one side close to the first flange.
The utility model has the advantages that:
the sealed isolation that indicates the measuring end of centre gripping formula conical surface passes through tapered electrode and tetrafluoro seal, and the electrode and the medium that use different materials according to the medium selection of difference thoroughly keep apart, the utility model discloses be favorable to in the use of high temperature high pressure, the aldehyde medium of strong corrosivity, effectively avoided the leakage of medium to cause the damage of secondary table, ensure the life and the production safety of instrument. The secondary meter has the advantages that the secondary meter is effectively prevented from being damaged due to leakage of media, installation, measurement and maintenance are facilitated, the service life of the meter is prolonged, and production safety is facilitated.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the invention and not to limit the invention unduly.
FIG. 1 is a diagram of a multi-point thermocouple structure with a clamping conical surface seal according to the present invention;
FIG. 2 is a top view of the seal plate;
FIG. 3 is a side view of the seal plate;
the testing device comprises a testing flange 1, a thermocouple core 2, a sealing plate 3, a sealing plate 4, a temperature module 5, an electrode 6, a junction box 7, a movable clamping sleeve 8, a first flange 9, a second flange 10, a first short section 11, a first flange short section 12 and a sleeve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, the device comprises a junction box 6, a temperature module 4, a plurality of electrodes 5, a first flange 8, a second flange 9, a test flange 1, a galvanic couple core 2 and a sealing plate 3, wherein the temperature module 4 is positioned in the junction box 6, the temperature module 4 is connected with the plurality of electrodes 5, the junction box 6 is hermetically connected with the second flange 9 through a first short section 10, one end of the first short section 10 extends into the junction box 6, the other end of the first short section extends into the second flange 9, the first flange 8 is connected with the second flange 9 in a matching manner, a groove is respectively formed in the relative positions of the first flange 8 and the second flange 9, and the sealing plate 3 is arranged in a space formed by the two grooves and is attached to the inner walls of the two grooves;
test flange 1 sets up with first flange 8 relatively, through second nipple joint sealing connection between test flange 1 and the first flange 8, electrode 5 sets up perpendicularly on closing plate 3, closing plate 3 is stretched out at both ends, thermocouple core 2 passes test flange 1 in proper order, the second nipple joint, first flange 8 is connected with electrode 5's one end, electrode 5's the other end and temperature compensation line are connected, electrode compensation line passes second flange 9 in proper order, first nipple joint 10 is connected with temperature module 4, sealing connection between thermocouple core 2 and the test flange 1.
The junction box 6 protects the secondary meter, and the first short section 10 is connected with the junction box 6 and the second flange 9 through welding, so that the junction box 6 is connected with the second flange 9 in a sealing mode.
The first flange 8 and the second flange 9 are fastened through bolts, the galvanic core 2 for measurement is thoroughly isolated from the outside, and the secondary meter is protected.
The position that first flange 8 and second flange 9 are relative sets up first recess and second recess, and the laminating sets up between closing plate 3 and first recess and the second recess, further improves the leakproofness, and the both ends at the middle part of closing plate 3 set up third recess and fourth recess respectively, and third recess and fourth recess form the position that the electrode set up, and couple core 2 and temperature compensation line are connected with electrode 5 respectively, and third recess and fourth recess provide the place of connecting.
The test flange 1 is provided with a plurality of second through holes, the first flange is respectively provided with a plurality of third through holes, the second through holes are opposite to the third through holes, and the couple core 2 sequentially penetrates through the second through holes and the third through holes to be connected with the electrodes 5.
The plurality of electrodes 5 are divided into a plurality of positive electrodes and a plurality of negative electrodes, the plurality of electrodes are circularly arranged, a plurality of corresponding first through holes are arranged between the third groove and the fourth groove of the sealing plate, the electrodes penetrate through and are arranged in the first through holes, and the two ends of the electrodes extend out of the first through holes.
The thermocouple core 2 is connected with one end of the electrode 5, and the other end of the electrode 5 is connected with the secondary meter through a temperature compensation line.
The electrode 5 is a conical electrode, the positive electrode and the negative electrode of the thermocouple core 2 are respectively welded on the conical electrode, the other end of the electrode is respectively welded with a black temperature compensation wire and a red temperature compensation wire and is fixed by using a wire nose and a nut, and the led-out wire is connected to the temperature module 4 of the secondary meter through a junction box.
The specification of the tapered electrode can be phi 3 × 28, and the material of the electrode can be 304, 316L, titanium and tantalum.
The sealing plate 3 may be made of teflon.
The diameter of the second through hole is 3.2 mm. The second through hole is provided with an internal thread, the movable clamping sleeve is provided with an external thread, and the second through hole is in threaded connection with the movable clamping sleeve. The couple core passes through the second through hole and the movable clamping sleeve to be fastened and sealed
The gauge of the casing may be Φ 32 × 5 the gauge of the first flange sub may be Φ 42 × 5.
The specifications of the test flange 1, the first flange 8 and the second flange 9 can be DN50, DN80, DN100 and DN 125.
The specification of the first groove and the specification of the second groove are phi 80 × 10, the specification of the third groove and the specification of the fourth groove are phi 60 × 7, the specification of the sealing plate is phi 78 × 20, the specification of the first short section is phi 22 × 3, and the length of the first short section is 40 mm.
The thermocouple core may be 304, 316L, 3039.
And the temperature module 4 is a module with high-quality SI L2 certification.
The explosion-proof junction box 6 is an intrinsic safety explosion-proof junction box.
The utility model discloses in, a plurality of first through-holes on the closing plate 3 become circle ring shape and arrange, divide into interior circle and excircle, and interior circle and excircle set up the electrode of different polarities respectively.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a sealed multiple spot thermocouple of centre gripping formula conical surface which characterized in that: the temperature module is positioned in the junction box, the temperature module is connected with the electrodes, the junction box is connected with the second flange through a first short section in a sealing manner, one end of the short section extends into the junction box, the other end of the short section extends into the second flange, the first flange is connected with the second flange in a matching manner, a groove is respectively formed in the relative positions of the first flange and the second flange, and the sealing plate is arranged in a space formed by the two grooves and is attached to the inner walls of the two grooves;
the testing flange is arranged opposite to the first flange, the testing flange is connected with the first flange in a sealing mode through the second short section, the electrode is vertically arranged on the sealing plate, the two ends of the electrode extend out of the sealing plate, the thermocouple core sequentially penetrates through the testing flange, the second short section and one end of the first flange and is connected with one end of the electrode, the other end of the electrode is connected with the temperature compensation line, the electrode compensation line sequentially penetrates through the second flange, the first short section and is connected with the secondary meter, and the thermocouple core is connected with the testing flange in a sealing mode.
2. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the relative position of first flange and second flange sets up first recess and second recess respectively, and the cross section of first recess and second recess is circular structure.
3. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the sealing plate is in a shape matched with the groove, the outer side edge, the upper surface and the lower surface of the sealing plate are attached to the groove, and the third groove and the fourth groove are arranged at the two ends of the middle of the sealing plate respectively.
4. The pinch cone sealed multipoint thermocouple of claim 3, wherein: the electrodes are divided into a plurality of anodes and a plurality of cathodes, a plurality of corresponding first through holes are arranged between the third groove and the fourth groove of the sealing plate, the electrodes penetrate through and are arranged in the first through holes, and the two ends of the electrodes extend out of the first through holes.
5. The pinch cone sealed multipoint thermocouple of claim 4, wherein: a plurality of first through holes on the sealing plate are arranged in a ring shape and are divided into an inner circle and an outer circle, and the inner circle and the outer circle are respectively provided with electrodes with different polarities.
6. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the test flange is provided with a plurality of second through holes, the first flange is respectively provided with a plurality of third through holes, the second through holes are opposite to the third through holes, and the couple core sequentially penetrates through the second through holes and the third through holes to be connected with the electrodes.
7. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the first short section is of a hollow cylindrical structure, and the first short section is connected with the junction box and the second flange through welding.
8. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the second short section is composed of a sleeve and a first flange short section, the sleeve is of a hollow cylindrical structure, the sleeve is welded on the test flange, the first flange short section is welded on the first flange, and the sleeve is connected with the first flange short section through threads.
9. The pinch cone sealed multipoint thermocouple of claim 1, wherein: the thermocouple core is connected with the second through hole in the test flange through a movable clamping sleeve, the movable clamping sleeve is in threaded connection with the second through hole, the movable clamping sleeve is of a bolt structure and extends into the second through hole, one end of a nut is clamped and arranged on the outer side of the second through hole, and one end of the nut of the movable clamping sleeve is located on one side close to the first flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982831.8U CN211178769U (en) | 2019-11-13 | 2019-11-13 | Clamping type conical surface sealed multipoint thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982831.8U CN211178769U (en) | 2019-11-13 | 2019-11-13 | Clamping type conical surface sealed multipoint thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211178769U true CN211178769U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921982831.8U Active CN211178769U (en) | 2019-11-13 | 2019-11-13 | Clamping type conical surface sealed multipoint thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211178769U (en) |
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2019
- 2019-11-13 CN CN201921982831.8U patent/CN211178769U/en active Active
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