CN106500905B - Wireless digital pressure gauge - Google Patents
Wireless digital pressure gauge Download PDFInfo
- Publication number
- CN106500905B CN106500905B CN201611189309.5A CN201611189309A CN106500905B CN 106500905 B CN106500905 B CN 106500905B CN 201611189309 A CN201611189309 A CN 201611189309A CN 106500905 B CN106500905 B CN 106500905B
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- Prior art keywords
- antenna
- shell
- pressure gauge
- wireless digital
- digital pressure
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- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 9
- 238000007710 freezing Methods 0.000 abstract description 6
- 230000008014 freezing Effects 0.000 abstract description 6
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a wireless digital pressure gauge, belonging to the field of pressure measurement, the wireless digital pressure gauge comprises: the wireless transmission device is arranged on the step at the upper end of the shell and is pressed and fixed through a locking nut; the upper end of the shell is provided with external threads, and the shell is connected with a pipeline through the external threads, so that the base and the sensor are deep into the pipeline, and the wireless transmission device is positioned outside the pipeline, thereby achieving the purposes of low temperature resistance and freezing prevention; the side wall of the shell is provided with a pressure relief hole for disassembling the wireless digital pressure timing and releasing the residual pressure in the pipeline; the upper end of the shell is provided with a dismounting notch, and the end face of the locking nut is provided with a dismounting hole so as to achieve the anti-theft purpose. The invention has the advantages of simple structure, good sealing performance, low temperature resistance, freezing prevention, theft prevention, convenient pressure relief and the like.
Description
Technical Field
The invention relates to the field of pressure measurement, in particular to a wireless digital pressure gauge for petroleum, petrochemical and natural gas industries.
Background
In the process of water injection, oil production and oil transportation, a digital pressure gauge is required to measure the pressure in a pipeline. China has wide range of members, different climates in different regions and different environmental temperatures, so that the digital pressure gauge is required to keep good working state in different temperature ranges.
Because be in flammable and explosive environment and can not adopt electric heating to realize keeping warm, the heat preservation mode of prior art mainly includes: the purpose of low temperature resistance and freezing prevention of the digital pressure gauge is achieved by adopting the heat insulation box or sleeving the heat insulation sleeve outside the heat insulation box, and the digital pressure gauge for automatically acquiring the pressure value is stopped and manually acquired instead of stopping in cold winter in some oil and gas fields. The above modes not only have use limitation, but also increase production and operation cost.
In the process of disassembling and assembling the digital pressure gauge, residual pressure in the pipeline needs to be released, the pressure relief mode in the prior art is to arrange a pressure relief hole on the pipeline, the pressure relief hole is blocked by an end cap, and the end cap is taken out when pressure relief is needed, so that the purpose of relieving the pressure of the pipeline is achieved. The pressure relief mode has high cost, poor sealing performance and inconvenient operation.
The pressure measuring instrument and the pipeline in the prior art are connected in a conventional threaded connection mode, the pressure measuring instrument is located at an obvious position outside the pipeline, and can be detached by using a universal dismounting tool without an anti-theft function.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a wireless digital pressure gauge, which can effectively solve the above-mentioned problems of the prior art by improving the structure.
The invention adopts the following technical scheme:
a wireless digital pressure gauge comprising: the base, the sensor is located the inboard depressed part of base, and the pot head is on the base under the shell, and the upper end is equipped with the step, and power supply unit is located the base, and signal circuit board installs in the power supply unit side, and display device is located the power supply unit top, and wireless transmission device installs on the step of shell upper end, compresses tightly fixedly through lock nut, threaded connection between lock nut and the shell.
The upper end of the shell is provided with an external thread, the external thread is connected with a pipeline, the base and the sensor are deep into the pipeline, the wireless transmission device is arranged outside the pipeline, and the purposes of low temperature resistance and freezing prevention are achieved.
The external thread is a taper pipe thread.
The side wall of the shell is provided with a pressure relief hole, the upper end of the pressure relief hole is arranged at the middle section of the external thread, and the lower end of the pressure relief hole extends to the smooth surface below the external thread and is used for disassembling the wireless digital pressure timing and releasing the residual pressure in the pipeline.
The upper end of the shell is provided with a dismounting notch which needs to be dismounted by a special tool so as to realize the anti-theft purpose. The dismouting notch is at least 2, evenly distributed at the upper end of shell.
The lock nut terminal surface is equipped with the dismouting hole, needs to carry out the dismouting with specialized tool to realize the purpose of theftproof, the dismouting hole is 2 at least.
The outer side of the base is provided with a circular groove, and the groove is provided with an O-shaped sealing ring, so that the sealing performance of the structure is ensured.
The lower terminal surface of base is equipped with the screw hole for with detect the articulate, detect wireless digital pressure gauge, the screw hole is 3 at least, the equipartition is at the lower terminal surface of base.
The base is provided with a through hole for medium to pass through along the thickness direction of the base, and the through hole enables the pressure sensing surface of the sensor to be communicated with the outside of the base.
The lower end of the base is provided with a wrench position, so that the base is convenient to disassemble and assemble.
The power supply device comprises a mounting frame, a battery and a battery fixing frame, the lower end of the mounting frame is connected to the base through threads, the battery is located in the mounting frame, and the upper end of the mounting frame is pressed and fixed through the battery fixing frame.
The display device comprises a liquid crystal panel, a circuit board fixing column and a panel, wherein the liquid crystal panel is positioned on the battery fixing frame and is compressed and fixed through the circuit board fixing column, and the panel is positioned on the circuit board fixing column.
The liquid crystal panel and the panel are both provided with U-shaped grooves for threading.
The wireless transmission device comprises an antenna, an antenna fixing plate, an antenna protection cover, a fixing nut, a plug and an O-shaped sealing ring; one end of the antenna is welded on the signal circuit board, the other end of the antenna penetrates through the plug and extends into the antenna protection cover, and the antenna is clamped in the antenna protection cover through the plug; the antenna protection cover is arranged on the antenna fixing plate and is fixed through a fixing nut; the plug is arranged in the antenna protection cover and is in threaded connection with the antenna protection cover; the O-shaped sealing ring is positioned between the antenna fixing plate and the antenna protection cover, so that the sealing performance of the wireless transmission device is guaranteed, and rainwater is prevented from entering the wireless transmission device. The wireless transmission device is connected into a whole firstly and then is arranged on the step at the upper end of the shell, so that the installation is simpler and more convenient.
Be equipped with the sealing member between the step of antenna fixed plate and shell upper end, guarantee the leakproofness of structure, prevent that the rainwater from getting into, the sealing member can be for sealing washer or sealed pad.
The working principle is as follows:
according to the wireless digital pressure gauge, the outer thread at the upper end of the shell is connected with the inner thread of the pipeline, the sensor is inserted into the pipeline, the medium pressure in the pipeline acts on the pressure sensing surface of the sensor through the through hole in the base, the sensor converts the acquired pressure signal into an electric signal and transmits the electric signal to the signal circuit board, the signal circuit board amplifies and calculates the signal, the display device displays pressure data, the wireless transmission device uploads the pressure data remotely, and the power supply device supplies power to the signal circuit board and the display device.
Has the advantages that:
compared with the prior art, the wireless digital pressure gauge has the advantages of simple structure, small volume, easy installation and convenient debugging; the optimized sealing structure improves the integral sealing property; according to the invention, the pressure sensing component sensor is inserted into the pipeline through the structure that the external thread at the upper end of the shell is connected with the internal thread of the pipeline, so that the purposes of low temperature resistance and freezing prevention of the wireless digital pressure gauge are realized; the side wall of the shell is provided with the pressure relief hole, so that pressure relief is convenient, and the cost of engineering equipment is reduced; use specialized tool to carry out the dismouting, realized the purpose of wireless digital pressure meter theftproof, can realize the quick assembly disassembly of wireless digital pressure meter simultaneously, reduced production operation cost.
Description of the drawings:
FIG. 1 is a schematic perspective view of a wireless digital pressure gauge according to the present invention;
FIG. 2 is a schematic cross-sectional view of a wireless digital pressure gauge of the present invention;
wherein: 1-base, 1 a-groove, 1 b-threaded hole, 1 c-through hole, 2-sensor, 3-shell, 3 a-step, 3 b-external thread, 3 c-pressure relief hole, 3 d-disassembly notch, 4-power supply device, 4 a-mounting rack, 4 b-battery, 4 c-battery fixing rack, 5-signal circuit board, 6-display device, 6 a-liquid crystal board, 6 b-circuit board fixing column, 6 c-panel, 7-wireless transmission device, 7 a-antenna, 7 b-antenna fixing plate, 7 c-antenna protection cover, 7 d-fixing nut, 7 e-plug, 7f-O type sealing ring, 8-locking nut, 8 a-disassembly hole and 9-sealing piece.
The specific implementation mode is as follows:
a wireless digital pressure gauge (see fig. 1, 2) comprising: the base 1, the sensor 2 is located the inboard depressed part of base 1, and the pot head is on base 1 under the shell 3, and the upper end is equipped with step 3a, and power supply unit 4 is located base 1, and signal circuit board 5 is installed in power supply unit 4 side, and display device 6 is located power supply unit 4 top, and wireless transmission device 7 installs on step 3a of shell 3 upper end, compresses tightly fixedly through lock nut 8, threaded connection between lock nut 8 and the shell 3.
The upper end of the shell 3 is provided with an external thread 3b (see fig. 1 and 2), and the external thread 3b is connected with a pipeline, so that the base 1 and the sensor 2 are inserted into the pipeline, and the wireless transmission device 7 is positioned outside the pipeline. The purposes of low temperature resistance and freezing prevention are achieved.
The external thread 3b is a taper pipe thread.
The side wall of the housing 3 is further provided with a pressure relief hole 3c (see fig. 1 and 2), the upper end of the pressure relief hole 3c is located at the middle section of the external thread 3b, and the lower end of the pressure relief hole extends to the smooth surface below the external thread 3b, so that the pressure relief hole is used for releasing residual pressure in the pipeline when the wireless digital pressure meter is disassembled.
The upper end of the housing 3 is further provided with a dismounting notch 3d (see fig. 1), which needs to be dismounted by a special tool to achieve the purpose of theft prevention. The number of the disassembling and assembling notches 3d is at least 2, and the disassembling and assembling notches are uniformly distributed at the upper end part of the shell 3.
The end face of the locking nut 8 is provided with dismounting holes 8a (see fig. 1 and 2), which need to be dismounted by a special tool to achieve the purpose of theft prevention, and the number of the dismounting holes 8a is at least 2.
A circular groove 1a (see figure 2) is formed in the outer side of the base 1, and an O-shaped sealing ring is arranged on the groove, so that the sealing performance of the structure is guaranteed.
The lower terminal surface of base 1 is equipped with screw hole 1b (see fig. 2) for be connected with detection joint, detect wireless digital pressure gauge, screw hole 1b is 3 at least, and the equipartition is at the lower terminal surface of base 1.
The base 1 has a through hole 1c (see fig. 2) for passing a medium therethrough in the thickness direction of the base, and the through hole 1c allows the pressure-sensitive surface of the sensor 2 to communicate with the outside of the base 1.
The lower end of the base 1 is provided with a wrench position, so that the base is convenient to disassemble and assemble.
The power supply device 4 (see fig. 2) comprises a mounting frame 4a, a battery 4b and a battery fixing frame 4c, wherein the lower end of the mounting frame 4a is connected to the base 1 through threads, the battery 4b is located in the mounting frame 4a, and the upper end of the mounting frame is pressed and fixed through the battery fixing frame 4 c.
The display device 6 (see fig. 2) includes a liquid crystal panel 6a, a circuit board fixing post 6b, and a panel 6c, wherein the liquid crystal panel 6a is located on the battery fixing frame 4c and is pressed and fixed by the circuit board fixing post 6b, and the panel 6c is located on the circuit board fixing post 6b and is fixed by a screw.
The liquid crystal panel 6a and the panel 6c are both provided with U-shaped grooves for threading.
The wireless transmission device 7 (see fig. 2) includes an antenna 7a, an antenna fixing plate 7b, an antenna protection cover 7c, a fixing nut 7d, a plug 7e, and an O-ring 7 f; one end of the antenna 7a is welded on the signal circuit board 5, the other end of the antenna 7a penetrates through the plug 7e and extends into the antenna protection cover 7c, and the antenna 7a is clamped in the antenna protection cover 7c through the plug 7e to prevent the antenna from falling off; the antenna protection cover 7c is arranged on the antenna fixing plate 7b and is fixed through a fixing nut 7 d; the plug 7e is arranged in the antenna protection cover 7c and is in threaded connection with the antenna protection cover 7 c; o type sealing washer 7f is located between antenna fixed plate 7b and the antenna protection cover 7c, has guaranteed wireless transmission device's leakproofness, prevents that the rainwater from getting into. The wireless transmission device 7 is connected into a whole and then is arranged on the step 3a at the upper end of the shell 3, so that the installation is simpler and more convenient.
And a sealing element 9 (see fig. 1 and 2) is arranged between the antenna fixing plate 7b and the step 3a at the upper end of the shell 3, so that the sealing property of the structure is ensured, and rainwater is prevented from entering.
The above description of the embodiments is only intended to facilitate an understanding of the core concepts of the present invention. It should be noted that, for a person skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (7)
1. A wireless digital pressure gauge comprising: base (1), sensor (2) are located base (1) inboard depressed part, the pot head is on base (1) under shell (3), the upper end is equipped with step (3a), power supply unit (4) are located base (1), install in power supply unit (4) side signal circuit board (5), display device (6) are located power supply unit (4) top, install on step (3a) of shell (3) upper end wireless transmission device (7), compress tightly fixedly through lock nut (8), its characterized in that: the upper end of the shell (3) is provided with an external thread (3b), and the shell is connected with a pipeline through the external thread (3b), so that the base (1) and the sensor (2) are deep into the pipeline, and the wireless transmission device (7) is positioned outside the pipeline;
the side wall of the shell (3) is provided with a pressure relief hole (3c), the upper end of the pressure relief hole (3c) is arranged at the middle section of the external thread (3b), and the lower end of the pressure relief hole extends to the smooth surface below the external thread (3 b).
2. A wireless digital pressure gauge according to claim 1, wherein: the external thread (3b) is a taper pipe thread.
3. A wireless digital pressure gauge according to claim 1, wherein: the upper end of shell (3) is equipped with dismouting notch (3d), dismouting notch (3d) are at least 2, evenly distributed at the upper end of shell (3).
4. A wireless digital pressure gauge according to any of claims 1 to 3, wherein: the lock nut (8) terminal surface is equipped with dismouting hole (8a), dismouting hole (8a) are 2 at least.
5. A wireless digital pressure gauge according to any of claims 1 to 3, wherein: the base (1) outside is equipped with circular recess (1a), set up O type sealing washer on recess (1 a).
6. A wireless digital pressure gauge according to any of claims 1 to 3, wherein: the wireless transmission device (7) comprises an antenna (7a), an antenna fixing plate (7b), an antenna protection cover (7c), a fixing nut (7d), a plug (7e) and an O-shaped sealing ring (7 f); one end of the antenna (7a) is welded on the signal circuit board (5), the other end of the antenna (7a) penetrates through the plug (7e) to extend into the antenna protection cover (7c), and the antenna (7a) is clamped in the antenna protection cover (7c) through the plug (7 e); the antenna protection cover (7c) is arranged on the antenna fixing plate (7b) and is fixed through a fixing nut (7 d); the plug (7e) is arranged in the antenna protection cover (7c) and is in threaded connection with the antenna protection cover (7 c); the O-shaped sealing ring (7f) is positioned between the antenna fixing plate (7b) and the antenna protection cover (7 c).
7. The wireless digital pressure gauge according to claim 6, wherein: and a sealing element (9) is arranged between the antenna fixing plate (7b) and the step (3a) at the upper end of the shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189309.5A CN106500905B (en) | 2016-12-21 | 2016-12-21 | Wireless digital pressure gauge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189309.5A CN106500905B (en) | 2016-12-21 | 2016-12-21 | Wireless digital pressure gauge |
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| Publication Number | Publication Date |
|---|---|
| CN106500905A CN106500905A (en) | 2017-03-15 |
| CN106500905B true CN106500905B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611189309.5A Active CN106500905B (en) | 2016-12-21 | 2016-12-21 | Wireless digital pressure gauge |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150705A (en) * | 2018-10-24 | 2019-01-04 | 浙江未见空间科技有限公司 | Underground Pipeline Data gateway with pluggable 4G module |
| CN109696350B (en) * | 2018-10-31 | 2021-06-18 | 上海天净新材料科技股份有限公司 | Intelligent pressure instrument |
| CN109946016A (en) * | 2019-04-16 | 2019-06-28 | 无锡森孚软件有限公司 | A kind of SFR-U2S type is lauched telemetry terminal system with low power |
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| CN106500905A (en) | 2017-03-15 |
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