CN202734990U - Thermocouple seal structure used for gasification furnace - Google Patents
Thermocouple seal structure used for gasification furnace Download PDFInfo
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- CN202734990U CN202734990U CN201220269101.5U CN201220269101U CN202734990U CN 202734990 U CN202734990 U CN 202734990U CN 201220269101 U CN201220269101 U CN 201220269101U CN 202734990 U CN202734990 U CN 202734990U
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- seal ring
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Abstract
The utility model provides a thermocouple seal structure used for a gasification furnace, and the structure comprises a seal upper flange, the structure also comprises a first support cylinder and a second support cylinder, two sides of the first support cylinder are respectively welded with a center hole of the seal upper flange and an end of the second support cylinder in a sealing manner, the other end of the second support cylinder is welded with a round annular seal cover, a center hole of the round annular seal cover is welded with a terminal conjunction box connecting pipe in a sealing manner, an inner wall of the first support cylinder is welded with a connecting ring in a sealing manner, ring holes of the connecting ring are provided with support connecting screws, top ends of the support connecting screws extend into the second support cylinder, tails of the support connecting screws extend outside the first support cylinder, and sealing devices are arranged in the ring holes between the support connecting screws and the connecting ring. The thermocouple seal structure used for the gasification furnace solves sealing problem of thermocouple cold end leading-out wires, and improves sealing stability, sealing high safety, and sealing reliability.
Description
Technical field
The utility model relates to a kind of thermopair, relates in particular to a kind of thermopair hermetically-sealed construction for gasification furnace.
Background technology
Thermopair is temperature element commonly used in the temperature measuring instrument, is conductor two ends by two kinds of heterogeneities when being bonded into the loop, when two abutment electric thermo-couple temperatures not simultaneously, will in the loop, produce thermocurrent.When if the working end of thermopair and reference end have the temperature difference, Displaying Meter will indicate the corresponding temperature value of thermoelectrical potential that thermopair produces.The moving heat of the thermoelectricity of thermopair will and increase along with the rising of measuring junction temperature, and its size is only relevant with the temperature at thermocouple material and two ends, and will be irrelevant with length, the diameter of thermode.Referring to Fig. 2, the cold junction hermetically-sealed construction of existing thermopair is such: by sealing upper flange 1 and armoring lead wire 13 welding, metal lead wire 15 is realized the cold junction upper end sealing of thermopair by electric insulating sealant 14 sealings, by sealing upper flange 1 and sealing lower flange (this is not shown) to realize thermocouple cold junction and pyrometer fire-end and integral sealing, terminal junction box connecting pipe 5 is with 1 welding of sealing upper flange and be connected connecting terminal box, metal lead wire 15 access connecting terminal box terminals are to realize the signal output of thermopair, existing this structure because the thermal expansivity of electric insulating sealant 14 and thermal expansivity certain difference is arranged, because the higher radiations heat energy of pyrometer fire-end causes metal lead wire 15 and sealing upper flange 1, sealing effectiveness is difficult to guarantee between the electric insulating sealant 14, can't guarantee stability and the reliability of its sealing.
Summary of the invention
The technical matters that the utility model solves is: a kind of thermopair hermetically-sealed construction for gasification furnace is provided, produces the problem that sealing effectiveness reduces after having solved electric insulating sealant expanded by heating of the prior art.
The technical solution of the utility model is: a kind of thermopair hermetically-sealed construction for gasification furnace, comprise the sealing upper flange, it is characterized in that, also comprise the first support tube and the second support tube, the two ends of described the first support tube respectively with the sealing upper flange center pit, one end seal welding of the second support tube, the other end of the second support tube is welded with the annular seal lid, the center pit seal weld of described annular seal lid is connected to the terminal junction box connecting pipe, the inner wall sealing of described the first support tube is welded with abutment ring, be provided with the support and connection screw rod in the annular distance of described abutment ring, the head of this support and connection screw rod stretches into the second support tube, the afterbody of support and connection screw rod extends the first support tube, is provided with packoff between the annular distance of support and connection screw rod and abutment ring.
Described packoff comprises by upper insulator seal ring and the lower insulator seal ring of threaded engagement on described support and connection screw rod, the axial cross section of described upper insulator seal ring and described lower insulator seal ring all is " protruding " font, microcephaly's section of upper insulator seal ring and microcephaly's section of lower insulator seal ring are closely inserted respectively in the annular distance of described abutment ring, and microcephaly's section of microcephaly's section of upper insulator seal ring, lower insulator seal ring respectively and form primary sealing area, secondary sealing area between the inwall of abutment ring annular distance.
Described packoff also comprises sealing hold-down ring, spring washer and the gland nut that is set on the support and connection screw rod, described sealing hold-down ring withstands the major part section end face of described lower insulator seal ring, and the step surface of the step surface of described upper insulator seal ring major part section, lower insulator seal ring major part section respectively and form the 3rd sealing surface, the 4th sealing surface between the upper surface of abutment ring, lower surface.
Described abutment ring has two annular distances, is respectively equipped with the support and connection screw rod in each annular distance.
The beneficial effects of the utility model are:
1, seal welding between the utility model abutment ring and the first support tube inwall, be provided with packoff between the annular distance of support and connection screw rod and abutment ring simultaneously, microcephaly's section of microcephaly's section of the upper insulator seal ring of packoff, lower insulator seal ring respectively and form primary sealing area, secondary sealing area between the inwall of abutment ring annular distance, the afterbody of support and connection screw rod is as the conductor of extension line, the utility model has solved the sealing problem of thermocouple cold junction extension line, improved the stability of sealing, the reliability of the safe and sealing of sealing.
2, because the step surface of the step surface of described upper insulator seal ring major part section, lower insulator seal ring major part section forms the 3rd sealing surface, the 4th sealing surface respectively and between the upper surface of abutment ring, lower surface, therefore the utility model further improved sealing stability, the reliability of the safe and sealing of sealing.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of prior art.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to Fig. 1, a kind of thermopair hermetically-sealed construction for gasification furnace, comprise sealing upper flange 1, also comprise the first support tube 2 and the second support tube 3, the two ends of described the first support tube 2 respectively with the sealing upper flange 1 center pit, one end seal welding of the second support tube 3, the other end of the second support tube 3 is welded with annular seal lid 4, the center pit seal weld of described annular seal lid 4 is connected to terminal junction box connecting pipe 5, the inner wall sealing of described the first support tube 2 is welded with abutment ring 6, be provided with support and connection screw rod 7 in the annular distance of described abutment ring 6, the head of this support and connection screw rod 7 stretches into the second support tube 2, the afterbody of support and connection screw rod 7 extends the first support tube 2, is provided with packoff between the annular distance of support and connection screw rod 7 and abutment ring 6.Packoff comprises by upper insulator seal ring 8 and the lower insulator seal ring 9 of threaded engagement on support and connection screw rod 7, the axial cross section of described upper insulator seal ring 8 and described lower insulator seal ring 9 all is " protruding " font, microcephaly's section of upper insulator seal ring 8 and microcephaly's section of lower insulator seal ring 9 are closely inserted respectively in the annular distance of described abutment ring 6, form primary sealing area between the inwall of microcephaly's section of upper insulator seal ring 8 and abutment ring 6 annular distances, form secondary sealing area between the inwall of microcephaly's section of lower insulator seal ring 9 and abutment ring 6 annular distances.Described packoff also comprises sealing hold-down ring 10, spring washer 11 and the gland nut 12 that is set on the support and connection screw rod 7, described sealing hold-down ring 10 withstands the major part section end face of described lower insulator seal ring 9, form the 3rd sealing surface between the step surface of described upper insulator seal ring 8 major part sections and the upper surface of abutment ring 6, form the 4th sealing surface between the step surface of lower insulator seal ring 9 major part sections and the lower surface of abutment ring 6.
In the present embodiment, described abutment ring 6 has two annular distances, is respectively equipped with support and connection screw rod 7 in each annular distance.The afterbody of support and connection screw rod 7 is used for connecting the thermocouple cold junction extension line.Be respectively arranged with above-mentioned packoff between two annular distances of two support and connection screw rods 7 and abutment ring 6, the structure of two packoffs is identical.The tail end of each connecting screw rod 7 is respectively equipped with for the wiring nut 16 that connects the thermocouple cold junction extension line.
Claims (4)
1. thermopair hermetically-sealed construction that is used for gasification furnace, comprise sealing upper flange (1), it is characterized in that: also comprise the first support tube (2) and the second support tube (3), the two ends of described the first support tube (2) respectively with the sealing upper flange (1) center pit, one end seal welding of the second support tube (3), the other end of the second support tube (3) is welded with annular seal lid (4), the center pit seal weld of described annular seal lid (4) is connected to terminal junction box connecting pipe (5), the inner wall sealing of described the first support tube (2) is welded with abutment ring (6), be provided with support and connection screw rod (7) in the annular distance of described abutment ring (6), the head of this support and connection screw rod (7) stretches into the second support tube (2), the afterbody of support and connection screw rod (7) extends the first support tube (2), is provided with packoff between the annular distance of support and connection screw rod (7) and abutment ring (6).
2. according to the thermopair hermetically-sealed construction for gasification furnace claimed in claim 1, it is characterized in that: described packoff comprises by upper insulator seal ring (8) and the lower insulator seal ring (9) of threaded engagement on described support and connection screw rod (7), the axial cross section of described upper insulator seal ring (8) and described lower insulator seal ring (9) all is " protruding " font, microcephaly's section of microcephaly's section of upper insulator seal ring (8) and lower insulator seal ring (9) is closely inserted respectively in the annular distance of described abutment ring (6), microcephaly's section of upper insulator seal ring (8), microcephaly's section of lower insulator seal ring (9) forms primary sealing area respectively and between the inwall of abutment ring (6) annular distance, secondary sealing area.
3. according to the thermopair hermetically-sealed construction for gasification furnace claimed in claim 2, it is characterized in that: described packoff also comprises sealing hold-down ring (10), spring washer (11) and the gland nut (12) that is set on the support and connection screw rod (7), described sealing hold-down ring (10) withstands the major part section end face of described lower insulator seal ring (9), and the step surface of the step surface of described upper insulator seal ring (8) major part section, lower insulator seal ring (9) major part section respectively and form the 3rd sealing surface, the 4th sealing surface between the upper surface of abutment ring (6), lower surface.
4. according to the thermopair hermetically-sealed construction for gasification furnace claimed in claim 1, it is characterized in that: described abutment ring (6) has two annular distances, is respectively equipped with support and connection screw rod (7) in each annular distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220269101.5U CN202734990U (en) | 2012-06-08 | 2012-06-08 | Thermocouple seal structure used for gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220269101.5U CN202734990U (en) | 2012-06-08 | 2012-06-08 | Thermocouple seal structure used for gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734990U true CN202734990U (en) | 2013-02-13 |
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ID=47660677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220269101.5U Expired - Lifetime CN202734990U (en) | 2012-06-08 | 2012-06-08 | Thermocouple seal structure used for gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661810A (en) * | 2012-06-08 | 2012-09-12 | 重庆川仪十七厂有限公司 | Thermocouple sealing structure for gasification furnace |
| CN113193682A (en) * | 2021-05-21 | 2021-07-30 | 上海盘毂动力科技股份有限公司 | Insulation sealing structure of motor stator lead-out wire |
-
2012
- 2012-06-08 CN CN201220269101.5U patent/CN202734990U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661810A (en) * | 2012-06-08 | 2012-09-12 | 重庆川仪十七厂有限公司 | Thermocouple sealing structure for gasification furnace |
| CN102661810B (en) * | 2012-06-08 | 2014-03-26 | 重庆川仪十七厂有限公司 | Thermocouple sealing structure for gasification furnace |
| CN113193682A (en) * | 2021-05-21 | 2021-07-30 | 上海盘毂动力科技股份有限公司 | Insulation sealing structure of motor stator lead-out wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |