CN103048082A - Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof - Google Patents
Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof Download PDFInfo
- Publication number
- CN103048082A CN103048082A CN2013100188815A CN201310018881A CN103048082A CN 103048082 A CN103048082 A CN 103048082A CN 2013100188815 A CN2013100188815 A CN 2013100188815A CN 201310018881 A CN201310018881 A CN 201310018881A CN 103048082 A CN103048082 A CN 103048082A
- Authority
- CN
- China
- Prior art keywords
- bourdon tube
- joint
- type
- pressure
- nickel
- 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.)
- Granted
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge which comprises a joint (4), a C-shaped bourdon tube (6), an upper joint (7), a lower joint (8) and a connecting rod (9), wherein the joint (4) is connected with one end of the C-shaped bourdon tube (6); the C-shaped bourdon tube (6) is connected with the connecting rod (9); and a pressure measuring mechanism (5) is connected with the connecting rod (9). The manufacturing method comprises the steps of manufacturing the C-shaped bourdon tube and assembling the pressure gauge, wherein the C-shaped bourdon tube is manufactured through the steps of S11, preparing a blank; S12, machining the appearance; S13, machining an inner hole; S14, threading; S15, machining the outer wall of the tube; S16, bending and shaping; S17, vacuumizing and heating; and S18, carrying out aging treatment, The pressure gauge is assembled through the steps of S21, assembling the C-shaped bourdon tube; and S22, assembling a gauge head, wherein the C-shaped bourdon tube is made of nickel base alloy material. The pressure gauge has the advantages of high-pressure resistance, corrosion resistance, precision stability and convenience in maintenance.
Description
Technical field
The present invention relates to the technology of instrument and meter field, particularly a kind of through type C type bourdon tube high-pressure sulphur-resistant tensimeter and manufacture method thereof.
Background technology
Tensimeter is very extensive in the application of industrial circle, is seen everywhere in fields such as heat distribution pipe network, oil gas transmission, water and air supply system, vehicle maintenance maintenance factory shops.Along with the fast development of national economy, the demand of rock gas is also constantly increased, the high sulfur Gas Fields that is regarded as the forbidden zone initial stage of production of natural-gas field also enters the scale exploitation by the paramount sulfur-bearing of low sulfur-bearing gradually, not only has height and contains H owing to relating to sour high sulfur Gas Fields
2The composition of S, simultaneously association has CO
2The media such as CL, and pressure is higher, generally all more than 40MPa, can reach 140MPa, require high to the gas recovery facility corrosion resistance, particularly require higher for the instrument and meter as the winning apparatus eyes, adopt diaphragm to isolate the mode (being diaphragm pressure gage) of being combined with ordinarily manometer for traditional corrosion-resistant pressure survey, need to be between isolation diaphragm and tensimeter vacuumizing, under vacuum state, inject filling liquid, after making diaphragm deformation, pressure make the gauge hand displacement show force value by the filling liquid transmission, this kind tensimeter is because reasons in structure limits, and isolation diaphragm is very thin, is generally about 0.1mm, under the continuous repeated action of etching condition and pressure, serviceable life is generally shorter.The Gas Exploitation And Transmission scene substantially all in the open air and the mountain area, environment is comparatively abominable, day and night temperature and the Dong Xia temperature difference all change larger, the expanded with heat and contract with cold impact of effect of filling liquid, the force value of transmission has corresponding deviation.Tensimeter as measurement instrument General Requirements three to verification in six months once, exhausted most applying unit can't satisfy the process conditions that vacuumize and pour into filling liquid at all.Isolation diaphragm is owing to placing air-tight state, once damaged, etchant gas enters in the common stainless steel tensimeter on top before maintenance, will make pressure gage spring tube corrosion explosion cause etchant gas to leak within very short time.Be limited to structure and the diaphragm reason of diaphragm, can not satisfy the high pressure operating mode.The diaphragm of at present domestic production is generally all below 16MPa, and is external also the highest in 40MPa, and high sulfur Gas Fields pressure is generally at 60MPa to 140MPa.Therefore, diaphragm pressure gage can only be in the easy crystallization of medium and preferably low pressure operating mode use of indoor environment.
Chinese patent 200810239862.4 discloses a kind of diaphragm apparatus manufacture method and diaphragm apparatus and diaphragm pressure gage, the present invention adopts barrier film as the medium of the pressure information of transmission of pressure medium, one side of barrier film is for being filled with the piezometric tube of liquid under vacuum state, the opposite side of barrier film is pressure medium, when this pressure medium when being with mordant sulfur-containing oil-gas, As time goes on, the decrease in serviceable life of barrier film, maintenance cycle is short, and quick-fried table accident easily occurs.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, the through type C type bourdon tube high-pressure sulphur-resistant tensimeter and the manufacture method thereof that a kind of high pressure resistant, corrosion-resistant, stable accuracy are provided and are convenient to safeguard.
Purpose of the present invention is achieved through the following technical solutions: a kind of through type C type bourdon tube high-pressure sulphur-resistant tensimeter, it comprises dial plate, be sleeved on the transparent housing of dial plate outside, be installed in the pressure survey mechanism and the pointer that is installed in the dial plate opposite side of dial plate one side, pointer links to each other with pressure survey mechanism, it also comprises joint, C type bourdon tube, upper binding head, lower union joint and connecting rod, joint is arranged at the bottom of dial plate, one end of joint is free end, the other end of joint links to each other by lower union joint with an end of C type bourdon tube, lower union joint is socketed on the C type bourdon tube, be provided with the spacer groove with the conical surface on the end face of lower union joint near a side of joint, be placed with it close-fitting pad in the spacer groove, the other end of C type bourdon tube links to each other by upper binding head with an end of connecting rod, and pressure survey mechanism links to each other with the other end of connecting rod;
The manometric method for making of described a kind of through type C type bourdon tube high-pressure sulphur-resistant, it comprises manufacturing and two steps of tensimeter assembling of C type bourdon tube, wherein, the manufacturing of described C type bourdon tube (6) comprises following substep:
S11, standby blank: select Φ 16.3mm～Φ 17mm nickel-base alloy bar, be cut to length 176mm～180mm;
S12, processing profile: to Φ 16mm, length is 175mm with the external diameter car of nickel-base alloy bar;
S13, processing endoporus: the nickel-base alloy bar is bored endoporus, guarantee that its internal diameter is Φ 6.5mm～Φ 6.7mm, through fraising, bore hole, the diameter of bore that makes the nickel-base alloy bar is Φ 7.2mm, and smooth finish reaches ▽ 5 again;
S14, cutting thread: with nickel-base alloy bar two ends lathe machining screw, be of a size of M14 * 1.25-14, wherein an end is left-hand thread (LHT), and the other end is right-hand thread;
S15, processing tube outer wall: the outer wall at nickel-base alloy bar middle part is machined to Φ 11.9mm～Φ 12.1mm, and smooth finish is ▽ 6;
S16, bend moulding: repeatedly roll through tube press machine, make the pipe fitting that profile is the C font;
S17, vacuumize and heat: with S6 step gained pipe fitting, be positioned in the vacuum drying oven, vacuumize, be warming up to 720 ℃～780 ℃, keep 7h～9h, close heat riser;
S18, Ageing Treatment: vacuumizing under the state, be cooled to 180 ℃～220 ℃ with stove after, take out, normal temperature is placed a week;
Described tensimeter assembling comprises following substep:
The assembling of S21, C type bourdon tube: at C type bourdon tube two ends suit upper binding head and lower union joint, put into pad in the spacer groove of lower union joint, lower union joint screws in joint, and upper binding head and connecting rod threaded engagement are connected the other end of connecting rod with pressure survey mechanism;
S22, gauge outfit assembling: fill pointer with scale one side at dial plate, at the opposite side setting pressure measuring mechanism of dial plate, pressure survey mechanism is linked to each other with the pointer transmission, dial plate is fixedly mounted on transparent housing inside, joint is fixedly mounted on the bottom of transparent housing, covers bonnet.
Described C type bourdon tube, upper binding head, lower union joint and pad are nickel-bass alloy material.
Described nickel-bass alloy material is the wherein a kind of of 3YC-7 or 3YC-24.
The present invention has the following advantages:
1, adopt material to be sealing and the web member that nickel-base alloy is made as the screwed connection mode, tensimeter is made as whole nickel-bass alloy material, the highest safe pressure can reach 160MPa, satisfies the request for utilization of sulfur Gas Fields fully.
2, in tensimeter, do not re-use barrier film pressurized transmission of pressure information, but with the C type bourdon tube of the nickel-base alloy material with decay resistance, and the inside and outside wall of C type bourdon tube is smooth, further weakens the corrosive attack of C type bourdon tube.
3, in the larger area of the temperature difference, the tensimeter of anti-sulphur of 1.6 grades, 1.0 grades, 0.4 grade three kinds of precision commonly used, the precision variation error fully can practical requirement all in the GB claimed range, is acted upon by temperature changes little.
4, the present invention does not use barrier film, and just adopts the screwed connection sealing, and dismounting is simple and convenient, is convenient to safeguard.
Description of drawings
Fig. 1 is the back side of the present invention inner structure schematic diagram;
Fig. 2 is Facad structure schematic diagram of the present invention;
Fig. 3 is the structure for amplifying schematic diagram of lower union joint;
Among the figure: 1-dial plate, 2-transparent housing, 3-pointer, 4-joint, 5-pressure survey mechanism, 6-C type bourdon tube, 7-upper binding head, 8-lower union joint, 9-connecting rod, 10-spacer groove, 11-pad.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples, but protection scope of the present invention is not limited to the following stated.
[embodiment 1]:
As shown in Figure 1, a kind of through type C type bourdon tube high-pressure sulphur-resistant tensimeter, it comprises dial plate 1, be sleeved on the transparent housing 2 of dial plate 1 outside, be installed in the pressure survey mechanism 5 and the pointer 3 that is installed in dial plate 1 opposite side of dial plate 1 one sides, pointer 3 links to each other with pressure survey mechanism 5, it also comprises joint 4, C type bourdon tube 6, upper binding head 7, lower union joint 8 and connecting rod 9, joint 4 is arranged at the bottom of dial plate 1, one end of joint 4 is free end, the other end of joint 4 links to each other by lower union joint 8 with an end of C type bourdon tube 6, lower union joint 8 is socketed on the C type bourdon tube 6, be provided with the spacer groove 10 with the conical surface on the end face of lower union joint 8 near a side of joint 4, be placed with it close-fitting pad 11 in the spacer groove 10, the other end of C type bourdon tube 6 links to each other by upper binding head 7 with an end of connecting rod 9, and pressure survey mechanism 5 links to each other with the other end of connecting rod 9;
The manometric method for making of a kind of through type C type bourdon tube high-pressure sulphur-resistant, it comprises manufacturing and two steps of tensimeter assembling of C type bourdon tube 6, wherein, the manufacturing of described C type bourdon tube 6 comprises following substep:
S11, standby blank: select Φ 16.3mm nickel-base alloy bar, be cut to length 176mm;
S12, processing profile: to Φ 16mm, length is 175mm with the external diameter car of nickel-base alloy bar;
S13, processing endoporus: the nickel-base alloy bar is bored endoporus, guarantee that its internal diameter is Φ 6.5mm, through fraising, bore hole, the diameter of bore that makes the nickel-base alloy bar is Φ 7.2mm, and smooth finish reaches ▽ 5 again;
S14, cutting thread: with nickel-base alloy bar two ends lathe machining screw, be of a size of M14 * 1.25-14, wherein an end is left-hand thread (LHT), and the other end is right-hand thread;
S15, processing tube outer wall: the outer wall at nickel-base alloy bar middle part is machined to Φ 11.9mm, and smooth finish is ▽ 6;
S16, bend moulding: repeatedly roll through tube press machine, make the pipe fitting that profile is the C font;
S17, vacuumize and heat: with S6 step gained pipe fitting, be positioned in the vacuum drying oven, vacuumize, be warming up to 720 ℃, keep 7h, close heat riser;
S18, Ageing Treatment: vacuumizing under the state, be cooled to 180 ℃ with stove after, take out, normal temperature is placed a week;
Described tensimeter assembling comprises following substep:
S21, the assembling of C type bourdon tube: at C type bourdon tube 6 two ends suit upper binding head 7 and lower union joint 8, put into pad 11 in the spacer groove 10 of lower union joint 8, lower union joint 8 screws in joints 4, and upper binding head 7 and connecting rod 9 threaded engagement are connected the other end of connecting rod 9 with pressure survey mechanism 5;
S22, gauge outfit assembling: fill pointer 3 with scale one side at dial plate 1, at the opposite side setting pressure measuring mechanism 5 of dial plate 1, pressure survey mechanism 5 is linked to each other with pointer 3 transmissions, dial plate 1 is fixedly mounted on transparent housing 2 inside, joint 4 is fixedly mounted on the bottom of transparent housing 2, covers bonnet.
Described C type bourdon tube 6, upper binding head 7, lower union joint 8 and pad 11 are nickel-bass alloy material.
Described nickel-bass alloy material is the wherein a kind of of 3YC-7 or 3YC-24.
[embodiment 2]:
Its structure is with embodiment 1.
The manometric method for making of a kind of through type C type bourdon tube high-pressure sulphur-resistant, it comprises manufacturing and two steps of tensimeter assembling of C type bourdon tube 6, wherein, the manufacturing of described C type bourdon tube 6 comprises following substep:
S11: standby blank: select Φ 16.5mm nickel-base alloy bar, be cut to length 178mm;
S12: the processing profile: to Φ 16mm, length is 175mm with the external diameter car of nickel-base alloy bar;
S13: processing endoporus: the nickel-base alloy bar is bored endoporus, guarantee that its internal diameter is Φ 6.6mm, through fraising, bore hole, the diameter of bore that makes the nickel-base alloy bar is Φ 7.2mm, and smooth finish reaches ▽ 5 again;
S14: cutting thread: with nickel-base alloy bar two ends lathe machining screw, be of a size of M14 * 1.25-14, wherein an end is left-hand thread (LHT), and the other end is right-hand thread;
S15: processing tube outer wall: the outer wall at nickel-base alloy bar middle part is machined to Φ 12mm, and smooth finish is ▽ 6;
S16: bend moulding: repeatedly roll through tube press machine, make the pipe fitting that profile is the C font;
S17: vacuumize and heat: with S6 step gained pipe fitting, be positioned in the vacuum drying oven, vacuumize, be warming up to 750 ℃, keep 8h, close heat riser;
S18: Ageing Treatment: vacuumizing under the state, be cooled to 200 ℃ with stove after, take out, normal temperature is placed a week;
Manometric assembling process is with embodiment 1.
Wherein, nickel-bass alloy material is the wherein a kind of of 3YC-7 or 3YC-24.
The present embodiment is most preferred embodiment.
[embodiment 3]:
Its structure is with embodiment 1.
The manometric method for making of a kind of through type C type bourdon tube high-pressure sulphur-resistant, it comprises manufacturing and two steps of tensimeter assembling of C type bourdon tube 6, wherein, the manufacturing of described C type bourdon tube 6 comprises following substep:
S11: standby blank: select Φ 17mm nickel-base alloy bar, be cut to length 180mm;
S12: the processing profile: to Φ 16mm, length is 175mm with the external diameter car of nickel-base alloy bar;
S13: processing endoporus: the nickel-base alloy bar is bored endoporus, guarantee that its internal diameter is Φ 6.7mm, through fraising, bore hole, the diameter of bore that makes the nickel-base alloy bar is Φ 7.2mm, and smooth finish reaches ▽ 5 again;
S14: cutting thread: with nickel-base alloy bar two ends lathe machining screw, be of a size of M14 * 1.25-14, wherein an end is left-hand thread (LHT), and the other end is right-hand thread;
S15: processing tube outer wall: the outer wall at nickel-base alloy bar middle part is machined to Φ 12.1mm, and smooth finish is ▽ 6;
S16: bend moulding: repeatedly roll through tube press machine, make the pipe fitting that profile is the C font;
S17: vacuumize and heat: with S6 step gained pipe fitting, be positioned in the vacuum drying oven, vacuumize, be warming up to 780 ℃, keep 9h, close heat riser;
S18: Ageing Treatment: vacuumizing under the state, be cooled to 220 ℃ with stove after, take out, normal temperature is placed a week;
Manometric assembling process is with embodiment 1.
Wherein, nickel-bass alloy material is the wherein a kind of of 3YC-7 or 3YC-24.
After C type bourdon tube 6 made, load onto respectively upper binding head 7 and lower union joint 8 at two of C type bourdon tube 6, joint 4 is passed transparent housing 2, one end of joint 4 is connected with outside pressure measurement pipeline, the other end of joint 4 and lower union joint 8 spin, be placed with pad 11 in the lower union joint 8, the other end of C type bourdon tube 6 links to each other by upper binding head 7 threaded engagement with connecting rod 9, and connecting rod 9 links to each other with pressure survey mechanism 5.Pressure medium enters C type bourdon tube 6 through joint 4, and C type bourdon tube 6 inner wall smooths, and junction good seal can bear high pressure, can resist again the corrosion of sulphur, and pressure medium is passed to pressure survey mechanism 5 with pressure signal through connecting rod 9, obtains accurately force value.
Claims (3)
1. through type C type bourdon tube high-pressure sulphur-resistant tensimeter, it comprises dial plate (1), be sleeved on the outside transparent housing (2) of dial plate (1), be installed in the pressure survey mechanism (5) of dial plate (1) one side and be installed in the pointer (3) of dial plate (1) opposite side, pointer (3) links to each other with pressure survey mechanism (5), it is characterized in that: it also comprises joint (4), C type bourdon tube (6), upper binding head (7), lower union joint (8) and connecting rod (9), joint (4) is arranged at the bottom of dial plate (1), one end of joint (4) is free end, the other end of joint (4) links to each other by lower union joint (8) with an end of C type bourdon tube (6), lower union joint (8) is socketed on the C type bourdon tube (6), be provided with the spacer groove (10) with the conical surface on the end face of lower union joint (8) near a side of joint (4), be placed with it close-fitting pad (11) in the spacer groove (10), the other end of C type bourdon tube (6) links to each other by upper binding head (7) with an end of connecting rod (9), and pressure survey mechanism (5) links to each other with the other end of connecting rod (9);
The manometric manufacture method of described a kind of through type C type bourdon tube high-pressure sulphur-resistant is characterized in that: it comprises manufacturing and two steps of tensimeter assembling of C type bourdon tube (6), and wherein, the manufacturing of described C type bourdon tube (6) comprises following substep:
S11, standby blank: select Φ 16.3mm～Φ 17mm nickel-base alloy bar, be cut to length 176mm～180mm;
S12, processing profile: to Φ 16mm, length is 175mm with the external diameter car of nickel-base alloy bar;
S13, processing endoporus: the nickel-base alloy bar is bored endoporus, guarantee that its internal diameter is Φ 6.5mm～Φ 6.7mm, through fraising, bore hole, the diameter of bore that makes the nickel-base alloy bar is Φ 7.2mm, and smooth finish reaches ▽ 5 again;
S14, cutting thread: with nickel-base alloy bar two ends lathe machining screw, be of a size of M14 * 1.25-14, wherein an end is left-hand thread (LHT), and the other end is right-hand thread;
S15, processing tube outer wall: the outer wall at nickel-base alloy bar middle part is machined to Φ 11.9mm～Φ 12.1mm, and smooth finish is ▽ 6;
S16, bend moulding: repeatedly roll through tube press machine, make the pipe fitting that profile is the C font;
S17, vacuumize and heat: with S6 step gained pipe fitting, be positioned in the vacuum drying oven, vacuumize, be warming up to 720 ℃～780 ℃, keep 7h～9h, close heat riser;
S18, Ageing Treatment: vacuumizing under the state, be cooled to 180 ℃～220 ℃ with stove after, take out, normal temperature is placed a week;
Described tensimeter assembling comprises following substep:
S21, the assembling of C type bourdon tube: at C type bourdon tube (6) two ends suit upper binding head (7) and lower union joint (8), put into pad (11) in the spacer groove (10) of lower union joint (8), lower union joint (8) screws in joint (4), upper binding head (7) and connecting rod (9) threaded engagement are connected the other end of connecting rod (9) with pressure survey mechanism (5);
S22, gauge outfit assembling: fill pointer (3) with scale one side at dial plate (1), opposite side setting pressure measuring mechanism (5) at dial plate (1), pressure survey mechanism (5) is linked to each other with pointer (3) transmission, dial plate (1) is fixedly mounted on transparent housing (2) inside, joint (4) is fixedly mounted on the bottom of transparent housing (2), covers bonnet.
2. a kind of through type C type bourdon tube high-pressure sulphur-resistant tensimeter according to claim 1, it is characterized in that: described C type bourdon tube (6), upper binding head (7), lower union joint (8) and pad (11) are nickel-bass alloy material.
3. a kind of through type C type bourdon tube high-pressure sulphur-resistant tensimeter according to claim 2, it is characterized in that: described nickel-bass alloy material is the wherein a kind of of 3YC-7 or 3YC-24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018881.5A CN103048082B (en) | 2013-01-18 | 2013-01-18 | Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018881.5A CN103048082B (en) | 2013-01-18 | 2013-01-18 | Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103048082A true CN103048082A (en) | 2013-04-17 |
| CN103048082B CN103048082B (en) | 2014-06-11 |
Family
ID=48060808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310018881.5A Active CN103048082B (en) | 2013-01-18 | 2013-01-18 | Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103048082B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308249A (en) * | 2013-06-26 | 2013-09-18 | 姚朝阳 | Pressure gauge |
| WO2015006945A1 (en) * | 2013-07-17 | 2015-01-22 | 冠翔（香港）工业有限公司 | Pressure gauge |
| CN109974927A (en) * | 2019-03-08 | 2019-07-05 | 漳州龙文区恩杰信息科技有限公司 | A kind of ankle Worn type smart machine based on the detection of river bank gas-liquid mixed pressure |
| CN110657912B (en) * | 2019-09-20 | 2022-05-06 | 慈溪市普莱斯仪表有限公司 | Gas indicator spring tube and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508246C1 (en) * | 1985-03-08 | 1986-06-26 | Haenni & Cie Mbh, 7000 Stuttgart | Pressure measuring device |
| CN2141082Y (en) * | 1992-10-18 | 1993-08-25 | 开封市航天电子仪表厂 | Shockproof pressure gauge |
| EP0695934A1 (en) * | 1994-07-27 | 1996-02-07 | WIKA ALEXANDER WIEGAND GmbH & CO. | Connection device for a manometer and method of manufacturing |
| CN1257195A (en) * | 1998-12-15 | 2000-06-21 | 威卡亚历山大威甘德两合公司 | Pressure-measuring system for pressure measurer and pressure measurer |
-
2013
- 2013-01-18 CN CN201310018881.5A patent/CN103048082B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508246C1 (en) * | 1985-03-08 | 1986-06-26 | Haenni & Cie Mbh, 7000 Stuttgart | Pressure measuring device |
| CN2141082Y (en) * | 1992-10-18 | 1993-08-25 | 开封市航天电子仪表厂 | Shockproof pressure gauge |
| EP0695934A1 (en) * | 1994-07-27 | 1996-02-07 | WIKA ALEXANDER WIEGAND GmbH & CO. | Connection device for a manometer and method of manufacturing |
| CN1257195A (en) * | 1998-12-15 | 2000-06-21 | 威卡亚历山大威甘德两合公司 | Pressure-measuring system for pressure measurer and pressure measurer |
Non-Patent Citations (1)
| Title |
|---|
| 吴坤松: "精密压力表", 《自动化仪表》, no. 3, 31 December 1980 (1980-12-31), pages 51 - 56 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308249A (en) * | 2013-06-26 | 2013-09-18 | 姚朝阳 | Pressure gauge |
| WO2015006945A1 (en) * | 2013-07-17 | 2015-01-22 | 冠翔（香港）工业有限公司 | Pressure gauge |
| CN109974927A (en) * | 2019-03-08 | 2019-07-05 | 漳州龙文区恩杰信息科技有限公司 | A kind of ankle Worn type smart machine based on the detection of river bank gas-liquid mixed pressure |
| CN110657912B (en) * | 2019-09-20 | 2022-05-06 | 慈溪市普莱斯仪表有限公司 | Gas indicator spring tube and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103048082B (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103048082B (en) | Straight-through type C-shaped bourdon tube high-pressure sulfur-resisting pressure gauge and manufacturing method thereof | |
| CN101726456B (en) | Residual intensity evaluation method of corrosion defect contained steam injection pipeline compensator bent pipe | |
| CN104697697A (en) | High-precision shock-proof pressure gauge | |
| CN202869570U (en) | Integrated orifice plate flowmeter | |
| CN203502290U (en) | Triaxial rock mechanics pressure chamber | |
| CN105547566A (en) | High-precision temperature compensation pressure sensor | |
| CN203024920U (en) | High-pressure sulphur-tolerant pressure gauge with straight-through type C-shaped spring tube | |
| CN203396446U (en) | High-sensitivity fiber bragg grating (FBG) liquid level sensor capable of removing temperature effect | |
| CN102998047A (en) | Radial corrugated pipe diaphragm-freezing-preventive pressure gauge with fluorescent indications on dial scales | |
| CN204043842U (en) | A kind of antifreezing device for pressure meter | |
| CN209485598U (en) | A kind of major part anti-shock pressure meter | |
| CN212656790U (en) | Integrated high-low voltage conversion measuring device | |
| CN204855053U (en) | Fiber grating pressure sensor of pipeline pressure monitoring | |
| CN204177512U (en) | A kind of gas medium piston gage | |
| CN207163629U (en) | A kind of high stainless steel pressure table of security performance | |
| CN203587271U (en) | Diaphragm-type middle differential pressure gauge | |
| CN205445596U (en) | High -pressure water injection well well head pressure table connector and supporting spanner thereof | |
| CN202081885U (en) | Anti-freezing pressure gauge | |
| CN204479235U (en) | A kind of high precision shock-proof pressure gauge | |
| CN204804825U (en) | Oil well tubular column packer load test short circuit | |
| CN210198630U (en) | Joint structure of high-pressure diaphragm pressure gauge | |
| CN202582818U (en) | Bourdon tube pressure gauge | |
| CN111198071A (en) | Crude oil pressure gauge buffer tank | |
| CN214551281U (en) | Device suitable for stable measurement of rectification high-pressure column differential pressure | |
| CN210719506U (en) | Pressure gauge for measuring liquid pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Xuliang Inventor after: Li Lin Inventor after: Lu Dayong Inventor after: Zheng Qiang Inventor before: Luo Xuliang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LUO XULIANG TO: LUO XULIANG LI LIN LU DAYONG ZHENG QIANG |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |