CN105115614A - A high and low temperature early warning bimetal thermometer - Google Patents
A high and low temperature early warning bimetal thermometer Download PDFInfo
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- CN105115614A CN105115614A CN201510504635.XA CN201510504635A CN105115614A CN 105115614 A CN105115614 A CN 105115614A CN 201510504635 A CN201510504635 A CN 201510504635A CN 105115614 A CN105115614 A CN 105115614A
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- container cavity
- proximity switch
- low temperature
- early warning
- protection tube
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Abstract
The invention discloses a high and low temperature early warning bimetal thermometer comprising a meter case, a protection tube, a dial, a pointer, a pointer shaft, a temperature-sensitive member, an alarm, a first proximity switch and a second proximity switch. The meter case is connected to the protection tube. An accommodating chamber is arranged in the meter case. The accommodating chamber comprises a first accommodating chamber and a second accommodating chamber. A side edge of the meter case is provided with an early warning box. The alarm is installed in the early warning box. The pointer is positioned in the first accommodating chamber, and is installed at one end of the pointer shaft. The other end of the pointer shaft is connected to the temperature-sensitive member. The dial is positioned in the first accommodating chamber and positioned below the pointer. The dial is provided with a high temperature early warning line and a low temperature early warning line. The first proximity switch and the second proximity switch are both installed in the second accommodating chamber. The first proximity switch is in electric connection with a wiring terminal of a high temperature alarm line. The second proximity switch is in electric connection with a wiring terminal of a low temperature alarm line. According to the invention, a high and low temperature early warning function of the bimetal thermometer is realized, and investment of enterprise production cost is reduced.
Description
Technical field
The present invention relates to instrument appliance technical field, particularly relate to a kind of high-low temperature pre-warning bimetallic system cell.
Background technology
Bimetallic system cell is a kind of Site Detection instrument measuring medium and low temperature, directly can measure liquid vapour and gas medium temperature within the scope of-80 DEG C-+500 DEG C in various production run.The main element of industrial bimetallic system cell is the multilayered metal film of the composition that to force together with two or more metal film stacks, utilizes the principle work that two kinds of different metals degrees of expansion when temperature change is different.In the course of the work, drive pointer to rotate during the expanded by heating of one end, work instrument just demonstrates the temperature value that thermoelectrical potential is answered.
Along with the development of science and technology and the needs of modern industrial technology, thermometry also constantly improves.Especially in some processing industry, higher to the temperature requirement of fluid to be measured or gas.Therefore, in order to grasp the temperature variation of fluid to be measured or gas in real time, staff can carry out Real-Time Monitoring to thermometer, causes the increase of enterprise's production cost.
Summary of the invention
Based on the technical matters that above-mentioned background technology exists, the present invention proposes a kind of high-low temperature pre-warning bimetallic system cell, and this bimetallic system cell has high-low temperature pre-warning function.
The present invention proposes a kind of high-low temperature pre-warning bimetallic system cell, comprising: watchcase, protection tube, scale, pointer, needle pivot, temperature-sensing element, alarm, the first proximity switch and the second proximity switch, wherein:
Watchcase is connected with protection tube, and the inside of watchcase is provided with container cavity, and container cavity comprises the first container cavity and second container cavity of mutual conduction, and the second container cavity is positioned at the side near protection tube, and the second container cavity is provided with the installing port with protection tube conducting; The side of watchcase is provided with early warning box;
Alarm is arranged in early warning box, and alarm is provided with high temperature alarm line terminal and low-temperature warning line terminal;
Pointer is positioned at the first container cavity, and pointer is arranged on one end of needle pivot, and the other end of needle pivot to stretch in protection tube through the second container cavity and is connected with the temperature-sensing element in protection tube, and temperature-sensing element is formed by bimetallic strip helically coiling;
Scale is positioned at the first container cavity and is positioned at the below of pointer, and scale is respectively equipped with high temperature early warning line and low temperature early warning line along the swaying direction of pointer;
First proximity switch and the second proximity switch are installed in the second container cavity, and, first proximity switch and the second proximity switch lay respectively at the below of high temperature early warning line and low temperature early warning line, first proximity switch is electrically connected with high temperature alarm line terminal, when pointer reaches a high temperature early warning line, first proximity switch closes, and alarm sends heat alert; Second proximity switch is electrically connected with low-temperature warning line terminal, and when pointer reaches low temperature early warning line, the second proximity switch closes, and alarm sends low temperature alarm.
Preferably, protection tube inner chamber is provided with the fixed part for fixing temperature-sensing element away from one end of watchcase, and fixed part is made by Heat Conduction Material.
Preferably, fixed part is arranged on the port of protection tube, and fixed part is set to cone-shaped body, and the maximum end of cone-shaped body flushes with the port surface of protection tube; Temperature-sensing element is connected to the smallest end of cone-shaped body.
Preferably, fixed part inside is provided with taper and waits the drainage lumens of wall thickness, and the opening of drainage lumens is arranged in the largest end face of fixed part.
Preferably, scale carries out shutoff by sealing clamping ring to the conducting orifice between the first container cavity and the second container cavity, makes the first container cavity form annular seal space, and fill damping fluid in the first container cavity.
Preferably, watchcase is positioned at installing port place and is provided with connecting portion for connecting protection tube.
Preferably, watchcase comprises upper shell, liner shell and lower house, and liner shell is positioned at lower house inside and coordinates the container cavity being formed and seal with lower seal, and the opening edge of liner shell is pressed on sealing clamping ring for compressing sealing clamping ring; Upper shell is positioned at the outside of lower house and is connected with lower house.
In the present invention, by arranging high temperature early warning line and low temperature early warning line on scale, and be equipped with it by the first proximity switch, the second proximity switch and precaution device, when pointer reaches a high temperature early warning line, first proximity switch closes, and alarm sends heat alert; When pointer reaches low temperature early warning line, the second proximity switch closes, and alarm sends low temperature alarm; Thus achieve warning function, and no longer need staff to carry out Real-Time Monitoring, effectively reduce the input of enterprise's production cost.And high-low temperature pre-warning bimetallic system cell provided by the present invention also has fast response time, volume is little, the linearity good, more stable advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of high-low temperature pre-warning bimetallic system cell that the present invention proposes.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
As shown in Figure 1, Fig. 1 is the structural representation of a kind of high-low temperature pre-warning bimetallic system cell that the present invention proposes.
With reference to Fig. 1, a kind of high-low temperature pre-warning bimetallic system cell that the embodiment of the present invention proposes, comprising: watchcase 1, protection tube 2, scale 3, pointer 4, needle pivot 5, temperature-sensing element 6, alarm 7, first proximity switch 8 and the second proximity switch 9, wherein:
Watchcase 1 is provided with the connecting portion for connecting protection tube 2, watchcase 1 is connected with protection tube 2, the inside of watchcase 1 is provided with container cavity, container cavity comprises the first container cavity 10 and the second container cavity 11 of mutual conduction, and the second container cavity 11 is positioned at the side near protection tube 2, the second container cavity 11 is provided with the installing port with protection tube 2 conducting; The side of watchcase 1 is provided with early warning box 12; Protection tube 2 inner chamber is provided with the fixed part 13 for fixing temperature-sensing element 6 away from one end of watchcase 1, and fixed part 13 is made by Heat Conduction Material; Alarm 7 is arranged in early warning box 12, and alarm 7 is provided with high temperature alarm line terminal and low-temperature warning line terminal.
Pointer 4 is positioned at the first container cavity 10, and pointer 4 is arranged on one end of needle pivot 5, and the other end of needle pivot 5 to stretch in protection tube 2 through the second container cavity 11 and is connected with the temperature-sensing element 6 in protection tube 2, and temperature-sensing element 6 is formed by bimetallic strip helically coiling; Scale 3 is positioned at the first container cavity 10 and is positioned at the below of pointer 4, and scale 3 is respectively equipped with high temperature early warning line and low temperature early warning line along the swaying direction of pointer 4; Scale 3 carries out shutoff by sealing clamping ring 14 to the conducting orifice between the first container cavity 10 and the second container cavity 11, makes the first container cavity 10 form annular seal space, and fill damping fluid in the first container cavity 10, for improving the shock resistance of pointer.
First proximity switch 8 and the second proximity switch 9 are installed in the second container cavity 11, and, first proximity switch 8 and the second proximity switch 9 lay respectively at the below of high temperature early warning line and low temperature early warning line, first proximity switch 8 is electrically connected with high temperature alarm line terminal, when pointer 4 reaches a high temperature early warning line, first proximity switch 8 closes, and alarm 7 sends heat alert; Second proximity switch 9 is electrically connected with low-temperature warning line terminal, and when pointer 4 reaches low temperature early warning line, the second proximity switch 9 closes, and alarm 7 sends low temperature alarm.
In order to improve the measuring accuracy of thermometer, institute's measured value is fitted fluid to be measured or gas medium temperature more, fixed part 13 is arranged on the port of protection tube 2 by the present embodiment, and fixed part 13 is set to cone-shaped body, and the maximum end of cone-shaped body flushes with the port surface of protection tube 2; Fixed part 13 inside is provided with taper and waits the drainage lumens 1301 of wall thickness, the opening of drainage lumens 1301 is arranged in the largest end face of fixed part 13, by the thermal losses between this set reduction temperature-sensing element 6 and fluid to be measured or gas medium, and then improve measuring accuracy.
In addition, in the present embodiment, watchcase 1 comprises upper shell 101, liner shell 102 and lower house 103, liner shell 102 is positioned at lower house 103 inside and coordinates the container cavity being formed and seal with lower seal, further, the opening edge of liner shell 102 is pressed on sealing clamping ring 14 for compressing sealing clamping ring 14; Upper shell 101 is positioned at the outside of lower house 103 and is connected with lower house 103; The sealing property of watchcase 1 is improved by this structural design, and anti-deformation.
The present invention by arranging high temperature early warning line and low temperature early warning line on scale 3, and be equipped with it by the first proximity switch 8, second proximity switch 9 and precaution device, when pointer 4 reaches a high temperature early warning line, the first proximity switch 8 closes, and alarm 7 sends heat alert; When pointer 4 reaches low temperature early warning line, the second proximity switch 9 closes, and alarm 7 sends low temperature alarm; Thus achieve warning function, and no longer need staff to carry out Real-Time Monitoring, effectively reduce the input of enterprise's production cost.And high-low temperature pre-warning bimetallic system cell provided by the present invention also has fast response time, volume is little, the linearity good, more stable advantage.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. a high-low temperature pre-warning bimetallic system cell; it is characterized in that; comprise: watchcase (1), protection tube (2), scale (3), pointer (4), needle pivot (5), temperature-sensing element (6), alarm (7), the first proximity switch (8) and the second proximity switch (9), wherein:
Watchcase (1) is connected with protection tube (2), the inside of watchcase (1) is provided with container cavity, container cavity comprises the first container cavity (10) and second container cavity (11) of mutual conduction, and the second container cavity (11) is positioned at the side near protection tube (2), the second container cavity (11) is provided with the installing port with protection tube (2) conducting; The side of watchcase (1) is provided with early warning box (12);
Alarm (7) is arranged in early warning box (12), and alarm (7) is provided with high temperature alarm line terminal and low-temperature warning line terminal;
Pointer (4) is positioned at the first container cavity (10), pointer (4) is arranged on one end of needle pivot (5), the other end of needle pivot (5) to stretch in protection tube (2) through the second container cavity (11) and is connected with the temperature-sensing element (6) in protection tube (2), and temperature-sensing element (6) is formed by bimetallic strip helically coiling;
Scale (3) is positioned at the first container cavity (10) and is positioned at the below of pointer (4), and scale (3) is respectively equipped with high temperature early warning line and low temperature early warning line along the swaying direction of pointer (4);
First proximity switch (8) and the second proximity switch (9) are installed in the second container cavity (11), and, first proximity switch (8) and the second proximity switch (9) lay respectively at the below of high temperature early warning line and low temperature early warning line, first proximity switch (8) is electrically connected with high temperature alarm line terminal, when pointer (4) reaches a high temperature early warning line, first proximity switch (8) closes, and alarm (7) sends heat alert; Second proximity switch (9) is electrically connected with low-temperature warning line terminal, and when pointer (4) reaches low temperature early warning line, the second proximity switch (9) closes, and alarm (7) sends low temperature alarm.
2. high-low temperature pre-warning bimetallic system cell according to claim 1; it is characterized in that; protection tube (2) inner chamber is provided with the fixed part (13) for fixing temperature-sensing element (6) away from one end of watchcase (1), and fixed part (13) is made by Heat Conduction Material.
3. high-low temperature pre-warning bimetallic system cell according to claim 2, it is characterized in that, fixed part (13) is arranged on the port of protection tube (2), fixed part (13) is set to cone-shaped body, and the maximum end of cone-shaped body flushes with the port surface of protection tube (2); Temperature-sensing element (6) is connected to the smallest end of cone-shaped body.
4. high-low temperature pre-warning bimetallic system cell according to claim 3, it is characterized in that, fixed part (13) inside is provided with taper and waits the drainage lumens (1301) of wall thickness, and the opening of drainage lumens (1301) is arranged in the largest end face of fixed part (13).
5. high-low temperature pre-warning bimetallic system cell according to claim 1, it is characterized in that, scale (3) carries out shutoff by sealing clamping ring (14) to the conducting orifice between the first container cavity (10) and the second container cavity (11), make the first container cavity (10) form annular seal space, and fill damping fluid in the first container cavity (10).
6. high-low temperature pre-warning bimetallic system cell according to claim 1, is characterized in that, watchcase (1) is positioned at installing port place and is provided with connecting portion for connecting protection tube (2).
7. the high-low temperature pre-warning bimetallic system cell according to claim 5 or 6, it is characterized in that, watchcase (1) comprises upper shell (101), liner shell (102) and lower house (103), liner shell (102) is positioned at lower house (103) inside and coordinates the container cavity being formed and seal with lower seal, further, the opening edge of liner shell (102) is pressed on sealing clamping ring (14) for compressing sealing clamping ring (14); Upper shell (101) is positioned at the outside of lower house (103) and is connected with lower house (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510504635.XA CN105115614B (en) | 2015-08-17 | 2015-08-17 | A kind of high-low temperature pre-warning bimetallic thermometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510504635.XA CN105115614B (en) | 2015-08-17 | 2015-08-17 | A kind of high-low temperature pre-warning bimetallic thermometer |
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| CN105115614A true CN105115614A (en) | 2015-12-02 |
| CN105115614B CN105115614B (en) | 2018-03-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668643A (en) * | 2019-03-01 | 2019-04-23 | 安徽天康(集团)股份有限公司 | A kind of double upper limit electric contact bimetallic thermometers of high-precision |
| CN110186585A (en) * | 2019-06-19 | 2019-08-30 | 中国人民解放军陆军勤务学院 | Monitoring of temperature difference of mass concrete system based on temperature-sensitive device |
| CN110547972A (en) * | 2019-09-11 | 2019-12-10 | 李晓琪 | Feeding bottle with prompt facility |
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| CN2235613Y (en) * | 1995-03-11 | 1996-09-18 | 洪斌祥 | Thermometer using bimetallic strip as temp. sensing element |
| CN2921801Y (en) * | 2006-03-31 | 2007-07-11 | 明高五金制品（深圳）有限公司 | Double-indicator coaxle double-temperature displaying thermometer |
| CN102087931A (en) * | 2009-12-08 | 2011-06-08 | 上海莫克电子技术有限公司 | SF6 density relay |
| CN202076182U (en) * | 2011-05-26 | 2011-12-14 | 西安创联宏晟电子有限公司 | Gas monitoring device |
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| CN204422022U (en) * | 2014-12-30 | 2015-06-24 | 福建船政交通职业学院 | There is the anti-interference fuel oil instrument system of warning function |
| CN204944689U (en) * | 2015-08-17 | 2016-01-06 | 安徽电气集团股份有限公司 | A kind of high-low temperature pre-warning bimetallic system cell |
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2015
- 2015-08-17 CN CN201510504635.XA patent/CN105115614B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2235613Y (en) * | 1995-03-11 | 1996-09-18 | 洪斌祥 | Thermometer using bimetallic strip as temp. sensing element |
| CN2921801Y (en) * | 2006-03-31 | 2007-07-11 | 明高五金制品（深圳）有限公司 | Double-indicator coaxle double-temperature displaying thermometer |
| CN102087931A (en) * | 2009-12-08 | 2011-06-08 | 上海莫克电子技术有限公司 | SF6 density relay |
| CN202076182U (en) * | 2011-05-26 | 2011-12-14 | 西安创联宏晟电子有限公司 | Gas monitoring device |
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| CN204944689U (en) * | 2015-08-17 | 2016-01-06 | 安徽电气集团股份有限公司 | A kind of high-low temperature pre-warning bimetallic system cell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668643A (en) * | 2019-03-01 | 2019-04-23 | 安徽天康(集团)股份有限公司 | A kind of double upper limit electric contact bimetallic thermometers of high-precision |
| CN110186585A (en) * | 2019-06-19 | 2019-08-30 | 中国人民解放军陆军勤务学院 | Monitoring of temperature difference of mass concrete system based on temperature-sensitive device |
| CN110547972A (en) * | 2019-09-11 | 2019-12-10 | 李晓琪 | Feeding bottle with prompt facility |
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| CN105115614B (en) | 2018-03-13 |
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