CN209839313U - Valve rod companion heat preservation device - Google Patents
Valve rod companion heat preservation device Download PDFInfo
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- CN209839313U CN209839313U CN201920400532.2U CN201920400532U CN209839313U CN 209839313 U CN209839313 U CN 209839313U CN 201920400532 U CN201920400532 U CN 201920400532U CN 209839313 U CN209839313 U CN 209839313U
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- heating wire
- valve rod
- heat
- heat tracing
- block layer
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Abstract
The utility model relates to the technical field of heat tracing and heat preservation, and provides a valve rod heat tracing and heat preservation device, which comprises 2 semicircular valve rod heat tracing boxes, wherein the 2 valve rod heat tracing boxes are in a circular ring shape after being closed; each valve rod heat tracing box sequentially comprises a mica sheet, a heating wire, a heat insulation block layer and an outer protective shell from inside to outside; a rectangular groove is further formed in one side, close to the heating wire, of the heat preservation block layer, a mica sheet is installed in the rectangular groove, and the mica sheet is located between the heating wire and the valve rod; the heating wire is spirally wound, and two ends of the heating wire are provided with heating wire leading-out rods; one side of the heat preservation block layer, which is close to the heating wire, is provided with an oblong groove; the heating wire is placed in the oblong groove. The utility model has the advantages that: the valve rod heat tracing box is fixed and locked on the valve rod through a bolt, and the valve rod heat tracing and heat insulating device adopts a heating wire to be electrified and heated, so that the heat tracing of the valve rod is realized; the mica sheet isolates the heating wire and the valve rod; the service life of a heat tracing system is prolonged while the heat tracing heat preservation requirement of the valve rod is provided, and the maintenance and installation cost is reduced.
Description
Technical Field
The utility model relates to a companion's heat preservation technical field, in particular to valve rod companion's heat preservation device.
Background
In the field of fused salt photo-thermal power generation, the heat transfer medium is high-temperature mixed fused salt, and the melting point of the mixed salt is about 220 ℃. When the temperature of the valve rod is lower than 220 ℃, and molten salt exists in the valve rod, the molten salt can be solidified, so that the valve rod cannot open or close the valve according to a signal instruction of an upper computer, and destructive influence is caused on a system. In general, all the positions of molten salt flowing through the molten salt power station need to adopt heat tracing and heat preservation structures to ensure the normal operation of the molten salt power station. The traditional valve rod heat tracing insulation structure is that a heat tracing cable is wound on a valve rod, the heat tracing cable is fixed on the valve rod through a cable tie, and then insulation cotton and an outer protective cover structure are laid on the outer side of the heat tracing cable. The structure is applied to the valve rod of the molten salt system, the service life of the high-temperature heat tracing cable cannot be effectively guaranteed, and the installation cost of the heat tracing cable is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a valve rod heat tracing heat preservation device to improve the prior immature valve rod heat tracing heat preservation technology.
The technical scheme of the utility model as follows:
a valve rod heat tracing heat preservation device comprises 2 semicircular valve rod heat tracing boxes, wherein the 2 valve rod heat tracing boxes are circular after being closed; each valve rod heat tracing box sequentially comprises a mica sheet, a heating wire, a heat insulation block layer and an outer protective shell from inside to outside.
Furthermore, the heating wire is spirally wound, and heating wire leading-out rods are arranged at two ends of the heating wire; one side of the heat preservation block layer, which is close to the heating wire, is provided with an oblong groove; the heating wire is placed in the oblong groove.
Further, the heating wire is a nichrome wire; the heating wire leading-out rod is made of carbon steel, and the outer surface of the heating wire leading-out rod is full-threaded; the heating wire leading-out rod is connected with the heating wire through argon arc welding.
Furthermore, the heat insulation block layer is made of aluminum silicate, a rectangular groove is further formed in one side, close to the heating wire, of the heat insulation block layer, a mica sheet is installed in the rectangular groove, and the mica sheet is located between the heating wire and the valve rod and plays an insulating role; and two end surfaces of the heat insulation block layer are provided with heat insulation block assembly step surfaces which are attached to the end surfaces of the two sides of the outer protective shell.
Furthermore, the heat preservation block layer is provided with 2 round holes, and the heating wire leading-out rod is led out through the round holes.
Furthermore, the heat preservation block layer is formed by vacuum and integral molding of aluminum silicate.
Further, 2 outer protecting casings are fixed and locked through bolts.
The utility model has the advantages that: the valve rod heat tracing box is fixed and locked on the valve rod through a bolt, and the valve rod heat tracing and heat insulating device adopts a heating wire to be electrified and heated, so that the heat tracing of the valve rod is realized; the mica sheet isolates the heating wire and the valve rod; when the heat tracing heat preservation requirement of the valve rod can be met, the service life of a heat tracing system is prolonged, and the maintenance and installation cost is reduced.
Drawings
Fig. 1 is a schematic view showing an installation structure of a heat tracing and heat preserving device for a valve rod according to an embodiment of the present invention.
FIG. 2 is a schematic front view of a heat tracing and insulating device of the valve rod of the embodiment.
Fig. 3 is a schematic perspective view of the valve stem heat tracing and insulating device according to the embodiment.
Fig. 4 is a front view schematic of the valve stem heat tracing box.
Fig. 5 is a schematic top view of the valve stem heat-tracing tank of fig. 4.
Fig. 6 shows a schematic front view of a heating wire.
Fig. 7 is an isometric view of fig. 6.
FIG. 8 is a schematic front view of a thermal insulating block layer.
Figure 9 is a schematic cross-sectional view of figure 8.
Fig. 10 is an isometric view of fig. 8.
FIG. 11 is a schematic axial view of the outer jacket.
FIG. 12 is an isometric view of a mica sheet.
Wherein: 1-valve stem heat tracing box; 2-heating wires; 3-insulating block layer; 4-outer protecting shell; 5-mica sheets; 6-a valve; 7-a valve stem; 31-a rectangular trench; 32-oblong grooves; 33-circular hole.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects.
As shown in fig. 1-3, the embodiment of the utility model provides a valve rod heat tracing heat preservation device, including 2 semicircular valve rod heat tracing boxes 1, 2 the valve rod heat tracing box 1 is ring shape (360 degrees promptly) after closed for wrap up valve 6's upper end valve rod 7.
As shown in fig. 4-5, each valve rod heat tracing box sequentially comprises a mica sheet, a heating wire, a heat insulation block layer and an outer protective shell from inside to outside.
As shown in fig. 6 to 7, preferably, the heating wire 2 is made of a nichrome wire material, and the heating wire is spirally wound and has heating wire drawing bars at both ends thereof. The heating wire leading-out rod is made of carbon steel, the outer surface of the heating wire leading-out rod is full-threaded, and the heating wire leading-out rod and the heating wire are connected together through argon arc welding.
As shown in fig. 8-10, preferably, the thermal insulation block layer 3 is made of aluminum silicate and is manufactured by a vacuum integral molding process. The inner side surface of the heat preservation block 3 is provided with an oblong groove 32, and the oblong groove 32 can be provided with the spiral heating wire 2. Two round holes 33 are arranged on the inner side of the heat preservation block layer 3, and the round holes 33 are provided with leading-out bars of the heating wires 2. The insulating block layer 3 is provided with a rectangular groove 31 on the inner side, and the rectangular groove 31 can be used for installing the mica sheet 5. Two end faces of the heat insulation block 3 are provided with heat insulation block assembly step faces which are attached to the end faces of two sides of the outer protective shell 4.
As shown in fig. 11, preferably, the outer casing 4 fixes and locks two valve stem heat tracing boxes 1 with the same size on the valve stem by bolts, so that the heating wire 2, the heat preservation block 3 and the mica sheet 5 can be sufficiently sealed and attached, and the valve stem can be subjected to heat tracing.
As shown in fig. 12, the mica sheet 5 is preferably a high temperature resistant and insulating muscovite material. The mica sheet is positioned between the heating wire 2 and the valve rod and plays an insulating role.
The utility model discloses a valve rod companion's heat preservation device when can provide valve rod companion's heat preservation demand, improves companion's heat system life, and simple structure, is convenient for install and maintain.
While several embodiments of the present invention have been presented herein, it will be appreciated by those skilled in the art that changes can be made to the embodiments herein without departing from the spirit of the invention. The above-described embodiments are merely exemplary and should not be taken as limiting the scope of the invention.
Claims (7)
1. A valve rod heat tracing and heat insulating device is characterized by comprising 2 semicircular valve rod heat tracing boxes, wherein the 2 valve rod heat tracing boxes are circular after being closed; each valve rod heat tracing box sequentially comprises a mica sheet, a heating wire, a heat insulation block layer and an outer protective shell from inside to outside.
2. The valve stem heat tracing insulation device according to claim 1, wherein the heating wire is spirally wound, and heating wire leading-out bars are arranged at two ends of the heating wire; one side of the heat preservation block layer, which is close to the heating wire, is provided with an oblong groove; the heating wire is placed in the oblong groove.
3. The valve stem heat tracing insulation device according to claim 2, wherein the heating wire is a nichrome wire; the heating wire leading-out rod is made of carbon steel, and the outer surface of the heating wire leading-out rod is full-threaded; and the heating wire leading-out rod is welded with the heating wire.
4. The valve rod heat tracing insulation device according to claim 3, wherein the insulation block layer is made of aluminum silicate, a rectangular groove is further formed in one side of the insulation block layer close to the heating wire, a mica sheet is installed in the rectangular groove, and the mica sheet is located between the heating wire and the valve rod and plays an insulation role; and two end surfaces of the heat insulation block layer are provided with heat insulation block assembly step surfaces which are attached to the end surfaces of the two sides of the outer protective shell.
5. The valve stem heat tracing insulation device according to claim 4, wherein the insulation block layer is provided with 2 round holes, and the heating wire leading-out rod is led out through the round holes.
6. The heat tracing insulation device for the valve rod according to any one of claims 1 to 5, wherein the insulation block layer is formed by vacuum-forming aluminum silicate integrally.
7. The heat tracing insulation device of valve stem according to any one of claims 1-5, wherein 2 outer protecting shells are fixed and locked by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400532.2U CN209839313U (en) | 2019-03-27 | 2019-03-27 | Valve rod companion heat preservation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400532.2U CN209839313U (en) | 2019-03-27 | 2019-03-27 | Valve rod companion heat preservation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209839313U true CN209839313U (en) | 2019-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920400532.2U Active CN209839313U (en) | 2019-03-27 | 2019-03-27 | Valve rod companion heat preservation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209839313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464176A (en) * | 2021-07-26 | 2021-10-01 | 安邦电气股份有限公司 | Anti-freezing electric tracing band for tunnel |
| CN114508626A (en) * | 2022-03-08 | 2022-05-17 | 铜陵山海智能制造有限公司 | Heat preservation type valve rod and using method thereof |
-
2019
- 2019-03-27 CN CN201920400532.2U patent/CN209839313U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464176A (en) * | 2021-07-26 | 2021-10-01 | 安邦电气股份有限公司 | Anti-freezing electric tracing band for tunnel |
| CN113464176B (en) * | 2021-07-26 | 2024-05-14 | 安邦电气股份有限公司 | Anti-freezing electric tracing band for tunnel |
| CN114508626A (en) * | 2022-03-08 | 2022-05-17 | 铜陵山海智能制造有限公司 | Heat preservation type valve rod and using method thereof |
| CN114508626B (en) * | 2022-03-08 | 2024-03-29 | 铜陵山海智能制造有限公司 | Thermal insulation valve rod and use method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 208, building 3, No.2 Yushun Road, Daxing District, Beijing 102602 Patentee after: Shouhang high tech energy technology Co., Ltd Address before: 100070, Beijing Fengtai District headquarters base three District 20 Patentee before: SHOUHANG RESOURCES SAVING |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 730311 no.2888, North Qilianshan Avenue, Lanzhou New District, Lanzhou City, Gansu Province (room 317, zone B, comprehensive service building, comprehensive free trade zone) Patentee after: Shouhang high tech energy technology Co.,Ltd. Address before: Room 208, building 3, No.2 Yushun Road, Daxing District, Beijing Patentee before: Shouhang high tech energy technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 735000 room 307, No. 23, West Street, northwest street, Suzhou District, Jiuquan City, Gansu Province Patentee after: Shouhang high tech energy technology Co.,Ltd. Address before: 730311 no.2888, North Qilianshan Avenue, Lanzhou New District, Lanzhou City, Gansu Province (room 317, zone B, comprehensive service building, comprehensive free trade zone) Patentee before: Shouhang high tech energy technology Co.,Ltd. |