CN208818401U - Low temperature resistant capsule pressure gauge - Google Patents
Low temperature resistant capsule pressure gauge Download PDFInfo
- Publication number
- CN208818401U CN208818401U CN201821909650.8U CN201821909650U CN208818401U CN 208818401 U CN208818401 U CN 208818401U CN 201821909650 U CN201821909650 U CN 201821909650U CN 208818401 U CN208818401 U CN 208818401U
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- pressure gauge
- steel tube
- supply line
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 3
- 206010037660 Pyrexia Diseases 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
Low temperature resistant capsule pressure gauge, including pressure gauge ontology and temperature detect switch (TDS), the pressure gauge body lower part is equipped with gauge stand, bellows is equipped in the gauge stand, resistive heater is additionally provided in the gauge stand, the power supply line of the resistive heater 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 is connected with gauge stand by welded connecting plate.The utility model can be automatically controled resistive heater fever after temperature is reduced to 0 degree Celsius or less, guarantees that the elasticity of bellows is in best, keeps measurement result accurate.
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
Capsule pressure gauge is the pressure gauge using bellows as the sensing element of measurement slight pressure.Copper is closed for measuring
Gold plays corrosiveness, minute-pressure and negative pressure without explosion danger gas, is widely used in boiler draft, gas pipeline, burner
And in other similar equipment.But when temperature drops to 0 degree Celsius and hereinafter, the elasticity of bellows can reduce, causes metering inaccurate
Really.
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 low temperature resistant bellows pressure
Table, this kind of low temperature resistant capsule pressure gauge at 0 degree Celsius and it is following can heat automatically, make bellows is resiliently retained in normal condition,
To guarantee the accurate of metric results.
The technical solution adopted by the present invention to solve the technical problems is: low temperature resistant capsule pressure gauge, including pressure gauge sheet
Body and temperature detect switch (TDS), the pressure gauge body lower part are equipped with gauge stand, bellows are equipped in the gauge stand, is additionally provided with and adds in the gauge stand
The power supply line of hot water radiation wire, 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 pipe, the stainless steel tube are connected with gauge stand by welded connecting plate, and upper end is fixed with spring one end in the stainless steel tube, institute
The spring other end is stated equipped with piston, this section of stainless steel tube of piston to stainless steel tube top is interior to be equipped with water, the piston another side
Center is equipped with insulating bar, and the insulating bar other end is fixed with conductive sheet, and the stainless steel tube two sides are equipped with a pair of concentric lead to
The power supply line in hole, the resistive heater is passed through out of two through-holes, and the power supply line and through-hole junction are equipped with insulated enclosure
Circle, firewire of the power supply line in copper pipe are open circuit, and the open circuit is located at immediately below conductive sheet, and the open circuit lower part is lined with absolutely
Edge gasket is equipped with glue between the power supply line and insulation spacer.
The preferably connection type between the piston, insulating bar and conductive sheet are as follows: the piston and conductive sheet are equipped with
Threaded hole, insulating bar both ends be equipped with the matched screw thread of threaded hole, pass through the mating connection of threaded hole and screw thread.
When temperature is reduced to 0 degree Celsius or less, water setting expansion pushes piston, and conductive sheet is driven to join firewire open circuit
Logical, resistance wire is powered, when the temperature increases, aqueous, springs return conductive sheet, resistive heater power-off, temperature detect switch (TDS) and table
Seat is separated by connecting plate, can prevent gauge stand heating from melt water.
The beneficial effects of the present invention are: can be automatically controled resistive heater hair after temperature is reduced to 0 degree Celsius or less
Heat guarantees that the elasticity of bellows is in best, keeps measurement result accurate.
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. resistive heaters, 3. gauge stands, 4, power supply line, 5. connecting plates, 6. springs, 7. is stainless
Steel pipe, 8. water, 9. pistons, 11. insulating bars, 12. insulated enclosure circles, 13. insulation spacers.
Specific embodiment
Low temperature resistant capsule pressure gauge in Fig. 1, wherein 1. pressure gauge ontologies, 2. resistive heaters, 3. gauge stands, 4, power supply line,
5. connecting plate, 6. springs, 7. stainless steel tubes, 8. water, 9. pistons, 11. insulating bars, 12. insulated enclosure circles, 13. insulation spacers.Also
Including temperature detect switch (TDS), the pressure gauge body lower part is equipped with gauge stand, and bellows is equipped in the gauge stand, is additionally provided with and adds in the gauge stand
The power supply line of hot water radiation wire, 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 pipe, the stainless steel tube are connected with gauge stand by welded connecting plate, and upper end is fixed with spring one end in the stainless steel tube, institute
The spring other end is stated equipped with piston, this section of stainless steel tube of piston to stainless steel tube top is interior to be equipped with water, the piston another side
Center is equipped with insulating bar, and the insulating bar other end is fixed with conductive sheet, and the stainless steel tube two sides are equipped with a pair of concentric lead to
The power supply line in hole, the resistive heater is passed through out of two through-holes, and the power supply line and through-hole junction are equipped with insulated enclosure
Circle, firewire of the power supply line in copper pipe are open circuit, and the open circuit is located at immediately below conductive sheet, and the open circuit lower part is lined with absolutely
Edge gasket is equipped with glue between the power supply line and insulation spacer.
The preferably connection type between the piston, insulating bar and conductive sheet are as follows: the piston and conductive sheet are equipped with
Threaded hole, insulating bar both ends be equipped with the matched screw thread of threaded hole, pass through the mating connection of threaded hole and screw thread.
Claims (2)
1. low temperature resistant capsule pressure gauge, including pressure gauge ontology and temperature detect switch (TDS), it is characterized in that: the pressure gauge body lower part is set
Have a gauge stand, bellows be equipped in the gauge stand, be additionally provided with resistive heater in the gauge stand, the power supply line of the resistive heater from
It is pierced by gauge stand, the temperature detect switch (TDS) outer layer is that stainless steel tube closed at both ends, the stainless steel tube and gauge stand are connected by welding
Fishplate bar is connected, and upper end is fixed with spring one end in the stainless steel tube, and the spring other end is equipped with piston, piston to stainless steel
Water is equipped in this section of stainless steel tube at tube top end, piston another side center is equipped with insulating bar, and the insulating bar other end is solid
Surely there is conductive sheet, 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 logical from two
It being passed through in hole, the power supply line and through-hole junction are equipped with insulated enclosure circle, and firewire of the power supply line in copper pipe is open circuit,
The open circuit is located at immediately below conductive sheet, and the open circuit lower part is lined with insulation spacer, sets between the power supply line and insulation spacer
There is glue.
2. low temperature resistant capsule pressure gauge according to claim 1, it is characterized in that: the piston and conductive sheet are equipped with screw thread
Hole, insulating bar both ends be equipped with the matched screw thread of threaded hole, pass through the mating connection of threaded hole and screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909650.8U CN208818401U (en) | 2018-11-20 | 2018-11-20 | Low temperature resistant capsule pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909650.8U CN208818401U (en) | 2018-11-20 | 2018-11-20 | Low temperature resistant capsule pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208818401U true CN208818401U (en) | 2019-05-03 |
Family
ID=66280850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821909650.8U Expired - Fee Related CN208818401U (en) | 2018-11-20 | 2018-11-20 | Low temperature resistant capsule pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208818401U (en) |
-
2018
- 2018-11-20 CN CN201821909650.8U patent/CN208818401U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |