CN208847387U - A kind of novel low temperature resistant pressure gauge - Google Patents
A kind of novel low temperature resistant pressure gauge Download PDFInfo
- Publication number
- CN208847387U CN208847387U CN201821910048.6U CN201821910048U CN208847387U CN 208847387 U CN208847387 U CN 208847387U CN 201821910048 U CN201821910048 U CN 201821910048U CN 208847387 U CN208847387 U CN 208847387U
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- stainless steel
- pressure gauge
- power supply
- steel tube
- low temperature
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Abstract
A kind of novel low temperature resistant pressure gauge, including pressure gauge ontology and temperature detect switch (TDS), the gauge stand of the pressure gauge sheet is equipped with resistive heater, the power supply line of the resistive heater is pierced by out of gauge stand, then pass through temperature detect switch (TDS), it is equipped with marmem in temperature detect switch (TDS), using the physical characteristic and cleverly structure of marmem, reaches low-temperature heat and is put into purpose.The utility model can heat automatically at low temperature, guarantee the elasticity of bellows, make accurate measurement.
Description
Technical field
The invention belongs to can heat the pressure for guaranteeing bellows elasticity under instrument field more particularly to a kind of low temperature automatically
Table.
Background technique
Marmem is by thermoelasticity and martensitic traoformation and its inversion, and with shape memory effect by two
Kind or more the material that is constituted of metallic element.Shape memory can be reverted in memory temperature or more when temperature reaches.
Capsule pressure gauge is the pressure gauge using bellows as measurement slight pressure sensing element.It is logical to be widely used in boiler
In wind, gas pipeline, burner and other similar equipment.But in cold weather, low temperature can reduce the elasticity of bellows,
Lead to metering inaccuracy.
Summary of the invention
In order to overcome the problems, such as that it is inaccurate that capsule pressure gauge measures at low temperature, the present invention provides a kind of novel low temperature resistant pressure
Table, this kind of novel low temperature resistant pressure gauge can heat automatically at low temperature, and make bellows is resiliently retained in normal condition, to guarantee
Metric results it is accurate.
The technical solution adopted by the present invention to solve the technical problems is: a kind of novel low temperature resistant pressure gauge, including pressure
Table ontology and temperature detect switch (TDS), the pressure gauge body lower part are equipped with gauge stand, bellows are equipped in the gauge stand, is also set in the gauge stand
There is resistive heater, the power supply line of the resistive heater is pierced by out of gauge stand, and the temperature detect switch (TDS) outer layer is closed at both ends
Stainless steel tube, the stainless steel tube are connected with gauge stand by welded connecting plate, and the stainless steel tube two sides are equipped with a pair of concentric
The power supply line of through-hole, the resistive heater is passed through out of two through-holes, and the power supply line is close equipped with insulating with through-hole junction
Seal, power supply line firewire in stainless steel tube is open circuit, and stainless steel tube interior power line lower part is lined with insulation spacer, the electricity
It is equipped with glue between source line and insulation spacer, is equipped with through-hole among the insulation spacer, the insulation spacer is fixed on stainless steel
On inside pipe wall, marmem one end is fixed in upper end in the stainless steel tube, and the shape memory of the marmem is
Rugosity, the marmem other end are connected with insulation sheet rubber one side, and the electro-insulating rubber another side is equipped with conduction
Piece, the conductive sheet are located at the surface of power supply line firewire open circuit, and the stainless steel tube inner bottom surface is fixed with spring one end, described
The through-hole that the spring other end passes through insulation spacer is connected with conductive sheet.
The preferred insulation spacer is fixed on stainless steel inside pipe wall upper type are as follows: is fixed using glue.
The preferred marmem for the use of memory temperature being 0 to 8 degrees Celsius.
The preferred spring is insulated spring.
When the temperature of the surroundings is low, marmem makes power supply hereinafter, spring pulls down conductive sheet in memory temperature
Line is powered, and resistive heater is made to generate heat, and when environment temperature is increased to memory temperature or more, marmem restores to fold
Shape, by conductive sheet pull-up, power supply line is disconnected, and resistive heater stops working, and is separated temperature detect switch (TDS) and gauge stand using connecting plate
It opens, can prevent Resistant heating from influencing temperature detect switch (TDS).
The beneficial effects of the present invention are: can heat automatically at low temperature, guarantees the elasticity of bellows, make accurate measurement.
Detailed description of the invention
The present invention is further illustrated with example with reference to the accompanying drawing.
Fig. 1 is structural schematic diagram of the invention.
1. pressure gauge ontology in figure, 2. gauge stands, 3. resistive heaters, 4. connecting plates, 5. marmems, 6. insulation rubbers
Film, 7. conductive sheets, 8. power supply lines, 9. springs, 10. insulation spacers, 11. insulated enclosure circles.
Specific embodiment
A kind of novel low temperature resistant pressure gauge of Fig. 1, including 1. pressure gauge ontologies, 2. gauge stands, 3. resistive heaters, 4. connections
Plate, 5. marmems, 6. insulation sheet rubbers, 7. conductive sheets, 8. power supply lines, 9. springs, 10. insulation spacers, 11. insulation are close
Seal further includes temperature detect switch (TDS), and the pressure gauge body lower part is equipped with gauge stand, is equipped with bellows in the gauge stand, in the gauge stand
It is additionally provided with resistive heater, the power supply line of the resistive heater is pierced by out of gauge stand, and the temperature detect switch (TDS) outer layer is two end seals
The stainless steel tube closed, the stainless steel tube are connected with gauge stand by welded connecting plate, and the stainless steel tube two sides are equipped with a pair of same
The power supply line of the through-hole of the heart, the resistive heater is passed through out of two through-holes, and the power supply line and through-hole junction are equipped with absolutely
Edge sealing ring, power supply line firewire in stainless steel tube is open circuit, and stainless steel tube interior power line lower part is lined with insulation spacer, institute
It states and is equipped with glue between power supply line and insulation spacer, be equipped with through-hole among the insulation spacer, the insulation spacer is fixed on not
It becomes rusty on steel pipe inner wall, marmem one end, the memory shape of the marmem are fixed in upper end in the stainless steel tube
Shape is rugosity, and the marmem other end is connected with insulation sheet rubber one side, and the electro-insulating rubber another side is equipped with
Conductive sheet, the conductive sheet are located at the surface of power supply line firewire open circuit, and the stainless steel tube inner bottom surface is fixed with spring one end,
The through-hole that the spring other end passes through insulation spacer is connected with conductive sheet.
Insulation spacer described in this example is fixed on stainless steel inside pipe wall upper type are as follows: is fixed using glue.
The marmem that this example is selected is Nitinol, and memory temperature is 5 degrees Celsius.
Spring is insulated spring in this example.
Claims (4)
1. a kind of novel low temperature resistant pressure gauge, including pressure gauge ontology and temperature detect switch (TDS), it is characterized in that: under the pressure gauge ontology
Portion is equipped with gauge stand, and bellows is equipped in the gauge stand, is additionally provided with resistive heater, the power supply of the resistive heater in the gauge stand
Line is pierced by out of gauge stand, and the temperature detect switch (TDS) outer layer is stainless steel tube closed at both ends, and the stainless steel tube and gauge stand pass through weldering
Fishplate bar is connected in succession, and the stainless steel tube two sides are equipped with a pair of concentric through-hole, and the power supply line of the resistive heater is from two
It is passed through in through-hole, the power supply line and through-hole junction are equipped with insulated enclosure circle, and power supply line firewire in stainless steel tube is
Open circuit, stainless steel tube interior power line lower part are lined with insulation spacer, and glue is equipped between the power supply line and insulation spacer, described exhausted
Through-hole is equipped among edge gasket, the insulation spacer is fixed on stainless steel inside pipe wall, and shape is fixed in upper end in the stainless steel tube
Shape memory alloys one end, the shape memory of the marmem are rugosity, the marmem other end and absolutely
Edge sheet rubber one side is connected, and the electro-insulating rubber another side is equipped with conductive sheet, and the conductive sheet is located at power supply line firewire open circuit
Surface, the stainless steel tube inner bottom surface are fixed with spring one end, and the spring other end passes through the through-hole of insulation spacer and leads
Electric piece is connected.
2. the novel low temperature resistant pressure gauge of one kind according to claim 1, it is characterized in that: the insulation spacer be fixed on it is stainless
Steel pipe inner wall upper type are as follows: fixed using glue.
3. the novel low temperature resistant pressure gauge of one kind according to claim 1, it is characterized in that: the use of memory temperature being 0 to 8 Celsius
The marmem of degree.
4. the novel low temperature resistant pressure gauge of one kind according to claim 1, it is characterized in that: the spring is insulated spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821910048.6U CN208847387U (en) | 2018-11-20 | 2018-11-20 | A kind of novel low temperature resistant pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821910048.6U CN208847387U (en) | 2018-11-20 | 2018-11-20 | A kind of novel low temperature resistant pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208847387U true CN208847387U (en) | 2019-05-10 |
Family
ID=66376045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821910048.6U Active CN208847387U (en) | 2018-11-20 | 2018-11-20 | A kind of novel low temperature resistant pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208847387U (en) |
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2018
- 2018-11-20 CN CN201821910048.6U patent/CN208847387U/en active Active
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