CN219083391U - External heat tracing device - Google Patents
External heat tracing device Download PDFInfo
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- CN219083391U CN219083391U CN202223448347.1U CN202223448347U CN219083391U CN 219083391 U CN219083391 U CN 219083391U CN 202223448347 U CN202223448347 U CN 202223448347U CN 219083391 U CN219083391 U CN 219083391U
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- half shell
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Abstract
The utility model belongs to the technical field of heat tracing equipment, and relates to an external heat tracing device which comprises a front half shell and a heat tracing pipe arranged on the inner wall of the front half shell; the front half shell is of a C-shaped structure, and a front half shell heat tracing medium inlet and a front half shell heat tracing medium outlet are respectively arranged on the front half shell; the front half shell heat tracing medium inlet is communicated with the front half shell heat tracing medium outlet through a heat tracing pipe on the front half shell; the heat-insulating layer is arranged in the front half shell and positioned between the front half shell and the heat tracing pipe. The external heat tracing device disclosed by the utility model has the advantages of high pressure bearing, suitability for various mediums, high heat tracing efficiency and simple structure.
Description
Technical Field
The utility model belongs to the technical field of heat tracing equipment, relates to an external heat tracing device, and particularly relates to an external heat tracing device for a Coriolis mass flowmeter.
Background
In the case of conventional mass flow meters, heat must be supplied to them in some cases, and in particular, in the case of coriolis mass flow meters, heat must be supplied to the mass flow meter so as not to solidify the medium when measuring a specific medium (for example, a medium having a relatively high solidification temperature). The prior heat tracing device of the Coriolis mass flowmeter mainly comprises the following components:
(1) The shell of the mass flowmeter is wound with the copper tube on site, and the heat preservation and the shell are additionally arranged, so that the scheme has the main defects of being undetachable, and the copper tube is generally connected by a clamping sleeve type connector, so that the pressure bearing of heat tracing cannot be too high.
(2) The heat tracing pipe is placed in the mass flowmeter in an internal heat tracing mode. The disadvantages of this solution are: the bearing (secondary bearing) of the mass flowmeter shell is affected; if a fault (leakage) occurs in the heat tracing pipe in the casing, the whole flowmeter is scrapped.
(3) The heat tracing jacket mode of steel plate stamping is adopted. The disadvantages of this solution are: the pressure of the heat tracing jacket for bearing the heat tracing medium cannot be too high, the requirement on the heat tracing medium is high, and the use is limited; the heat tracing jacket is in rigid contact with the shell of the flowmeter, so that the performance of the flowmeter is affected; the heat preservation and the shell part are additionally arranged on the outer surface of the heat tracing jacket, and the structure is complex.
Disclosure of Invention
Aiming at the technical problems of low pressure bearing and complex structure in the existing heat tracing device, the utility model provides the external heat tracing device which has high pressure bearing, is applicable to various mediums, has high heat tracing efficiency and has a simple structure.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an external heat tracing device comprises a front half shell and a heat tracing pipe arranged on the inner wall of the front half shell; the front half shell is of a C-shaped structure, and a front half shell heat tracing medium inlet and a front half shell heat tracing medium outlet are respectively arranged on the front half shell; the front half shell heat tracing medium inlet is communicated with the front half shell heat tracing medium outlet through a heat tracing pipe on the front half shell.
Further, the external heat tracing device further comprises an insulating layer which is arranged in the front half shell and is positioned between the front half shell and the heat tracing pipe.
Further, the external heat tracing device also comprises a rear half shell and a heat tracing pipe arranged on the inner wall of the rear half shell; the rear half shell is respectively provided with a rear half shell heat tracing medium inlet and a rear half shell heat tracing medium outlet; the heat tracing medium inlet of the rear half shell is communicated with the heat tracing medium outlet of the rear half shell through a heat tracing pipe on the rear half shell; the structure of the rear half shell is the same as that of the front half shell, and the rear half shell and the front half shell are oppositely placed and connected to form a closed cavity structure.
Further, the external heat tracing device further comprises an insulating layer which is arranged in the rear half shell and is positioned between the rear half shell and the heat tracing pipe.
Further, the heat tracing pipe is a spiral coil pipe and spirals up and down in the axial direction of the front half shell and the axial direction of the rear half shell respectively.
Further, the outer walls of the heat tracing pipes are provided with metal attachment pieces, and the metal attachment pieces and the heat insulation layers are respectively arranged on two sides of the heat tracing pipes in the axial direction.
Further, the plurality of metal attachment pieces are arranged in sequence along the axial direction of the heat tracing pipe.
Further, the metal attachment member is of a spherical structure.
Further, the front half shell is connected with the rear half shell through a connecting piece, and the connecting piece is a hasp or a bolt.
Further, the heat tracing pipe is a steel pipe, and the front half shell and the rear half shell are both stainless steel shells.
The beneficial effects of the utility model are as follows:
1. in the utility model, the heat tracing pipe is arranged on the inner wall of the front half shell, the heat tracing pipe is also arranged on the inner wall of the rear half shell, the heat tracing pipe is a spiral coil pipe and spirals up and down in the axial direction of the front half shell and the axial direction of the rear half shell respectively, the pressure bearing of the heat tracing device is higher, various heat tracing mediums, steam, hot water, heat conducting oil and the like can be born, and the heat tracing efficiency is higher and can reach more than 85 percent.
2. In the utility model, the structure of the rear half shell is the same as that of the front half shell, and the front half shell is connected with the rear half shell through the connecting piece in a manner of being opposite to the front half shell to form a closed cavity structure, and the whole heat tracing device is detachable and convenient to install and detach.
3. According to the heat tracing device provided by the utility model, the shell structure is arranged outside the heat tracing pipe, the heat insulation layer is arranged inside the heat tracing pipe, no additional heat insulation equipment is required to be added on site, and the heat tracing device is simple in structure, practical and convenient.
4. According to the utility model, the metal attachment piece is added on the outer wall of the heat tracing pipe, when the front half shell and the rear half shell are arranged on the flowmeter, the heat tracing pipe is contacted with the flowmeter through the metal attachment piece, and the metal attachment piece is of a spherical structure, so that the heat conduction efficiency is increased, and meanwhile, the heat tracing pipe and the flowmeter can be prevented from being in rigid contact, and the performance of the flowmeter is not affected.
5. The heat tracing device is provided with the connecting interfaces (arranged on the front half shell and the rear half shell), and the connecting interfaces are flange interfaces or threaded interfaces, so that the heat tracing device is convenient to externally install on the mass flowmeter.
Drawings
FIG. 1 is a schematic view of the external structure of a heat tracing device;
FIG. 2 is a schematic diagram of the internal structure of the heat tracing device;
FIG. 3 is a schematic diagram of the installation of a heat trace device on a flow meter;
wherein:
1-a flowmeter inlet port; 2-flow meter flow direction; 3-a flow meter outlet interface; 4-a heat tracing pipe; 5-a metal attachment; 6, an insulating layer; 7-front half shell; 10-a rear half shell; 8-hasp; 9-spot welding; 11-a heat tracing medium inlet of the rear half shell; 12-a rear half shell heat tracing medium outlet; 13-front half shell heat tracing medium inlet; 14-front half shell heat tracing medium outlet.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Examples
Referring to fig. 1 and 2, an external heat tracing device includes a front half shell 7 and a rear half shell 10.
The inner wall of the front half shell 7 is provided with a heat tracing pipe 4, and the front half shell 7 is respectively provided with a front half shell heat tracing medium inlet 13 and a front half shell heat tracing medium outlet 14; the front half shell heat tracing medium inlet 13 is communicated with the front half shell heat tracing medium outlet 14 through the heat tracing pipe 4.
The inner wall of the rear half shell 10 is also provided with a heat tracing pipe 4, and the rear half shell 10 is respectively provided with a rear half shell heat tracing medium inlet 11 and a rear half shell heat tracing medium outlet 12; the heat tracing medium inlet 11 of the rear half shell is communicated with the heat tracing medium outlet 12 of the rear half shell through the heat tracing pipe 4;
the front half shell 7 is of a C-shaped structure, the structure of the rear half shell 10 is the same as that of the front half shell 7, and the front half shell 7 and the rear half shell are oppositely placed to form a closed cavity structure.
Referring to fig. 1, the front half shell 7 is connected with the rear half shell 10 through a connecting member, and a closed cavity structure is formed between the front half shell 7 and the rear half shell 10.
In this embodiment, the connecting member is a buckle 8 or a bolt, so that the front half shell 7 and the rear half shell 10 can be conveniently assembled and disassembled.
Referring to fig. 2, the external heat tracing device is provided with heat insulation layers 6 in the front half shell 7 and the rear half shell 10, respectively.
In the front half shell 7, an insulation layer 6 is positioned between the heat tracing pipe 4 and the inner wall of the front half shell 7; in the rear half shell 10, the heat insulating layer 6 is positioned between the heat tracing pipe 4 and the inner wall of the rear half shell 10, and respectively insulates the heat tracing pipe in the front half shell 7 and the heat tracing pipe in the rear half shell 10.
In the implementation, the heat preservation layer adopts materials such as nitrocotton, heat preservation cotton, etc. to realize heat preservation.
Referring to fig. 2 and 3, the heat tracing pipe 4 is a spiral coil and spirals up and down in the axial direction of the front half shell 7 and the axial direction of the rear half shell 10, respectively.
All be provided with metal attachment 5 on the heat tracing pipe 4 outer wall, metal attachment 5 and heat preservation 6 are listed as in heat tracing pipe 4 axial both sides, and metal attachment 5 can increase the heat conduction area to increase heat conduction efficiency, further, metal attachment 5 is spherical structure, can also avoid forming rigid contact between heat tracing pipe and the flowmeter, and then can not influence the performance of flowmeter.
The plurality of metal attachment pieces 5 are sequentially arranged along the axial direction of the heat tracing pipe 4, the heat conduction area is increased, and the heat tracing efficiency of the heat tracing device is improved and reaches more than 85%.
In practice, the heat tracing pipe 4 is a steel pipe, the front half shell 7 and the rear half shell 10 are both stainless steel shells, and the metal attachment piece 5 is a steel wire ball.
The external heat tracing device provided by the utility model is arranged outside the mass flowmeter during use, and in order to facilitate installation, connecting pieces are respectively arranged on the front half shell 7 and the rear half shell 10, and the connecting pieces are hasps 8 or bolts, so that the heat tracing device is conveniently externally arranged on the heat tracing device, and the installation efficiency is improved. The heat tracing device can be connected with the shell of the mass flowmeter only by adopting the spot welding 9.
The external heat tracing device provided by the utility model has the following two ways of heat tracing medium inlet and outlet during heat tracing.
First, in and out in parallel. I.e. the heat tracing medium comprises a first path and a second path which are connected in parallel. In the implementation, the first path is discharged from the heat tracing medium inlet 11 of the rear half shell through the heat tracing pipe 4 on the rear half shell 10 and then from the heat tracing medium outlet 12 of the rear half shell; the second path is from the front half shell heat tracing medium inlet 13 to the front half shell heat tracing medium outlet 14 after passing through the heat tracing pipe 4 on the front half shell 7.
Second kind: in and out in a serial manner.
In practice, the heat tracing medium flows out from the heat tracing medium inlet 11 of the rear half shell, the heat tracing pipe 4 of the rear half shell 10, the heat tracing medium outlet 12 of the rear half shell, the heat tracing medium flows out from the heat tracing medium inlet 13 of the front half shell, the heat tracing pipe 4 of the front half shell 7 and the heat tracing medium outlet 14 of the front half shell, and the heat tracing medium is one path.
There is also a series implementation. Namely, the heat tracing medium is discharged from the heat tracing medium inlet 11 of the rear half shell, from the heat tracing medium outlet 12 of the rear half shell after passing through the heat tracing pipe 4 of the rear half shell 10, then enters from the heat tracing medium outlet 14 of the front half shell, and is discharged from the heat tracing medium inlet 13 of the front half shell after passing through the heat tracing pipe 4 of the front half shell 7.
The heat tracing medium is selected from various mediums such as steam, hot water, heat conducting oil and the like, so that heat tracing is realized.
Taking heat tracing of a coriolis mass flowmeter as an example, the heat tracing process of the present utility model is described.
Referring to fig. 1, the coriolis mass flowmeter comprises a flowmeter housing, wherein a flowmeter inlet interface 1 and a flowmeter outlet interface 3 are respectively arranged on the flowmeter housing, and a flowmeter flow direction 2 is also arranged on the flowmeter housing to display the flow direction of the flowmeter.
Referring to fig. 1, when heat is carried, first, the front half shell 7 and the rear half shell 10 are fixed outside the flowmeter shell, and the front half shell 7 and the rear half shell 10 are relatively placed, are connected through spot welding 9, are connected and fastened through connecting pieces, then heat carrier medium is introduced into the heat carrier pipe 4 on the front half shell 7 and the heat carrier pipe 4 on the rear half shell 10, the heat carrier medium carries out heat carrier on the coriolis mass flowmeter, the area of the metal attachment piece 5 on the outer part of the heat carrier pipe 4 is increased, the heat carrier efficiency is improved, and the heat insulation layer realizes heat insulation.
According to the utility model, the front half shell 7 and the rear half shell 10 are arranged and fixed outside the flowmeter in a hasp and/or spot welding mode, the coil-type heat tracing pipes 4 are respectively arranged on the inner wall of the front half shell 7 and the inner wall of the rear half shell 10, the metal attachment pieces 5 are additionally arranged on the heat tracing pipes 4 to increase heat conduction efficiency, the heat insulating layers 6 respectively insulate heat in the front half shell 7 and the rear half shell 10, the heat tracing pipes have high pressure bearing, the installation and the disassembly are convenient, the structure is simple, the heat tracing pipes are externally arranged outside the mass flowmeter, and the heat tracing efficiency is high and can reach more than 85%.
Claims (10)
1. An external heat tracing device is characterized by comprising a front half shell (7) and a heat tracing pipe (4) arranged on the inner wall of the front half shell (7); the front half shell (7) is of a C-shaped structure, and a front half shell heat tracing medium inlet (13) and a front half shell heat tracing medium outlet (14) are respectively arranged on the front half shell (7); the front half shell heat tracing medium inlet (13) is communicated with the front half shell heat tracing medium outlet (14) through the heat tracing pipe (4) on the front half shell (7).
2. The external heat trace device according to claim 1, further comprising an insulation layer (6) disposed within the front half-shell (7) and between the front half-shell (7) and the heat trace tube (4).
3. The external heat tracing device according to claim 1 or 2, further comprising a rear half shell (10) and a heat tracing pipe (4) disposed on an inner wall of the rear half shell (10); a rear half shell heat tracing medium inlet (11) and a rear half shell heat tracing medium outlet (12) are respectively arranged on the rear half shell (10); the heat tracing medium inlet (11) of the rear half shell is communicated with the heat tracing medium outlet (12) of the rear half shell through the heat tracing pipe (4) on the rear half shell (10); the structure of the rear half shell (10) is the same as that of the front half shell (7), and the rear half shell and the front half shell are oppositely placed and connected to form a closed cavity structure.
4. An external heat transfer device according to claim 3, further comprising a heat insulating layer (6) disposed within the rear half-shell (10) and between the rear half-shell (10) and the heat transfer tube (4).
5. The external heat tracing device according to claim 4, wherein the heat tracing pipe (4) is a spiral coil and spirals up and down in the axial direction of the front half shell (7) and the axial direction of the rear half shell (10), respectively.
6. The external heat tracing device according to claim 5, wherein the outer walls of the heat tracing pipe (4) are provided with metal attachment pieces (5), and the metal attachment pieces (5) and the heat insulation layer (6) are respectively arranged on two sides of the heat tracing pipe (4) in the axial direction.
7. The external heat tracing device according to claim 6, wherein the plurality of metal attachment pieces (5) are provided, and the plurality of metal attachment pieces (5) are sequentially provided along the axial direction of the heat tracing pipe (4).
8. The external heat tracing device according to claim 7, wherein said metal attachment member (5) is of a spherical structure.
9. The external heat tracing device according to claim 8, wherein the front half shell (7) is connected with the rear half shell (10) through a connecting piece, and the connecting piece is a buckle (8) or a bolt.
10. The external heat tracing device according to claim 9, wherein the heat tracing pipe (4) is a steel pipe, and the front half shell (7) and the rear half shell (10) are both stainless steel shells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223448347.1U CN219083391U (en) | 2022-12-22 | 2022-12-22 | External heat tracing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223448347.1U CN219083391U (en) | 2022-12-22 | 2022-12-22 | External heat tracing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219083391U true CN219083391U (en) | 2023-05-26 |
Family
ID=86423737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223448347.1U Active CN219083391U (en) | 2022-12-22 | 2022-12-22 | External heat tracing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219083391U (en) |
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2022
- 2022-12-22 CN CN202223448347.1U patent/CN219083391U/en active Active
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