CN2060883U - Main heater and protective heater for plate heat-transfer - Google Patents
Main heater and protective heater for plate heat-transfer Download PDFInfo
- Publication number
- CN2060883U CN2060883U CN 89219311 CN89219311U CN2060883U CN 2060883 U CN2060883 U CN 2060883U CN 89219311 CN89219311 CN 89219311 CN 89219311 U CN89219311 U CN 89219311U CN 2060883 U CN2060883 U CN 2060883U
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- heater
- foot bridge
- utility
- protective
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Abstract
The utility model relates to a main heater and a protective heater for flat heat conduction devices, which belongs to the field of physical property measurement. The utility model is composed of a main heat equalizing plate, a protective heat equalizing plate, a mica plate, a heating sheet of the main heater, a connecting small bridge and a heating sheet of the protective heater. The utility model is characterized in that the connecting small bridge adopts a pin type connecting small bridge; thus, the heat transfer between the main heater and the protective heater is reduced. The utility model can measure the heat flow density and heat conduction coefficient according to the prescription of the international standard, and the crack on the connecting part of the small bridge is prevented.
Description
The utility model is plate heat conduction device primary heater and a protection well heater, and it belongs to the physical property measurement field.
Existing plate heat conduction device has a very important components: primary heater and protection well heater, and they connect together with one heart, and there is a slit centre, clogs with thermal insulation material in the slit.Control slit temperature difference approaches zero, to reduce heat transferred between primary heater and protection well heater.For primary heater and protection well heater relative position are fixed in the same plane, between primary heater and protection well heater 3～4 web member-foot bridges are arranged.As shown in Figure 1.According to the international standard regulation, the space area can not be greater than 5% of primary heater area.Little for larger-size device problem, and plant bulk is than hour (the well heater overall dimensions is less than 200 millimeters of φ), space width very little (being not more than 1.2 millimeters), this just brings a problem: the restriction of controlled meter sensitivity, always there is certain temperature difference the space both sides.Because space is too narrow, " foot bridge " is too short, makes the heat that transmits by " foot bridge " between primary heater and protection well heater surpass permissible value.In addition, because stress is concentrated near " foot bridge ", the place, right angle easily produces crack even fracture.
The utility model proposes a kind of improved plate heat conduction device primary heater and protection well heater, it can meet mensuration heat flow density and coefficient of heat conductivity under the situation of international standard.
Fig. 1 is existing plate heat conduction device primary heater and protection heater structure synoptic diagram.
Fig. 2 is that the connection foot bridge that the utility model proposes improves synoptic diagram, and wherein Fig. 2 (a) is former connection foot bridge synoptic diagram, and Fig. 2 (b) is the connection foot bridge synoptic diagram after improving.
The utility model proposes a kind of primary heater and the plate heat conduction device that is connected heater connection foot bridge primary heater and protection heater of improving. It is made up of main soaking plate, protection soaking plate, mica sheet, primary heater electric heating piece, protection heater electric heating piece, connection foot bridge. Be characterized in: as shown in Figure 2, draw with computational methods earlier and satisfy the required space width of international standard regulation, connecting bridge is adopted the special construction of the pin type of major part shown in the figure, namely increase the length that connects foot bridge, and use the circular arc connection instead, its size can design as required.
The utility model is owing to adopted new connection foot bridge, connect foot bridge length and increased (former foot bridge length equals the space width) than original foot bridge, the length of connection foot bridge has increased more than 2 times with the ratio of space width, reduced the heat transferred between primary heater and protection well heater, made it to measure heat flow density and coefficient of heat conductivity according to the regulation of international standard.And, use circular arc instead owing to connect the junction of foot bridge, reduced stress and concentrated, prevent the generation of slight crack.
Fig. 3 is example structure schematic diagram of the present utility model.
Fig. 4 connects the foot bridge structural representation for the utility model embodiment.
Below in conjunction with an embodiment of the present utility model utility model is described further.As shown in Figure 3, the present embodiment heater structure is: center section is a primary heater, and the outer circle annular is up and down thick 7～8 millimeters corrosion resistant plates for the protection well heater, protection soaking plate (8) and main soaking plate (7) with wire cutting method is processed into play equal heat effect.The two folder primary heater electric heating piece (11) and protection well heater electric heating piece (10), mica sheet (9) plays insulating effect.Primary heater and protection well heater are in same plane, and mechanical connection is for being rigidly connected, line cutting space, with four little bridgings of connection it, form an integral body.Require the space area less than primary heater area 5%, and the thermal resistance of four connection foot bridges (length) can not be too little.Adopted the connection foot bridge of improved major part pin type, increased connection foot bridge length, changed the right angle at former foot bridge place into arc chord angle, its physical dimension as shown in Figure 4.For long 2 millimeters of former bridge, space is wide 2 millimeters, the space area is the primary heater and the protection well heater of primary heater area 8%, after improvement as shown in Figure 4, bridge is long to be increased slightly, space is only wide 1.2 millimeters, and the space area is 4.8% of a primary heater, meets the international standard set quota.The foot bridge place changes arc chord angle into by the right angle, reduces the thermal stress that generation when cooling off was concentrated and heated to stress, has eliminated crackle.
Claims (2)
1, a kind of plate heat conduction device primary heater and protection well heater, it is formed by being connected foot bridge [3] between main soaking plate [7], protection soaking plate [8], mica sheet [9], primary heater electric heating piece [11], protection well heater electric heating piece [10], primary heater and protection well heater, it is characterized in that: connect the connection foot bridge that foot bridge adopts major part pin type, promptly increase the length of foot bridge, and connect with circular arc
2, primary heater according to claim 1 and protection well heater, it is characterized in that: the length that connects foot bridge is more than 2 times of space width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89219311 CN2060883U (en) | 1989-11-29 | 1989-11-29 | Main heater and protective heater for plate heat-transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89219311 CN2060883U (en) | 1989-11-29 | 1989-11-29 | Main heater and protective heater for plate heat-transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060883U true CN2060883U (en) | 1990-08-22 |
Family
ID=4874198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89219311 Withdrawn CN2060883U (en) | 1989-11-29 | 1989-11-29 | Main heater and protective heater for plate heat-transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938861A (en) * | 2010-08-17 | 2011-01-05 | 上海交通大学 | Linear heat source type heater for protecting and heating plate devices |
| CN102419342A (en) * | 2011-08-16 | 2012-04-18 | 上海建科检验有限公司 | Test device for detecting performance of heating surface of heat-insulating material |
-
1989
- 1989-11-29 CN CN 89219311 patent/CN2060883U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938861A (en) * | 2010-08-17 | 2011-01-05 | 上海交通大学 | Linear heat source type heater for protecting and heating plate devices |
| CN101938861B (en) * | 2010-08-17 | 2013-01-02 | 上海交通大学 | Linear heat source type heater for protecting and heating plate devices |
| CN102419342A (en) * | 2011-08-16 | 2012-04-18 | 上海建科检验有限公司 | Test device for detecting performance of heating surface of heat-insulating material |
| CN102419342B (en) * | 2011-08-16 | 2014-10-01 | 上海建科检验有限公司 | Test device for detecting performance of heating surface of heat-insulating material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |