CN218411528U - Protection device for pressure transmitter - Google Patents
Protection device for pressure transmitter Download PDFInfo
- Publication number
- CN218411528U CN218411528U CN202221677957.6U CN202221677957U CN218411528U CN 218411528 U CN218411528 U CN 218411528U CN 202221677957 U CN202221677957 U CN 202221677957U CN 218411528 U CN218411528 U CN 218411528U
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- piston
- pressure transmitter
- pipe
- gas
- protection device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a protection device for pressure transmitter, including piston tube and gas receiver, its characterized in that: the gas receiver one end links to each other with pressure transmitter, one end and piston pipe screw thread fixed connection, be equipped with piston and piston rod in the piston tube, be equipped with the through-hole in the middle of the piston, passed by the piston rod, piston one end is equipped with fixed mounting's end cap, and the other end is equipped with the piston collet, be equipped with the through-hole on the piston collet, the piston collet is installed in pressure transmitter and drain pipe junction, spherical end cap is towards the piston pipe, be equipped with the protection gas in the airtight space that piston pipe, gas receiver and piston formed. The utility model discloses a protection device for pressure transmitter prevents to be surveyed gaseous or liquid direct contact pressure transmitter diaphragm and guarantees the pressure transmission, improves pressure transmitter life-span, easy maintenance.
Description
Technical Field
The utility model relates to a pressure transmitter accessory field specifically indicates a protection device for pressure transmitter.
Background
The pressure transmitter is a device for converting pressure into pneumatic signals or electric signals for control and remote transmission, and can convert physical pressure parameters of gas, liquid and the like sensed by a load cell sensor into standard electric signals to supply secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process regulation. The diaphragm of the pressure transmitter is in direct contact with the gas or liquid to be detected, and is fragile and difficult to maintain because the diaphragm is fragile and is often damaged by contacting corrosive liquid, high temperature or low temperature of the liquid and solid impurity particles.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome above-mentioned problem, provide and prevent to be surveyed gas or liquid direct contact pressure transmitter diaphragm and guarantee the pressure transmission, improve pressure transmitter life-span, a protection device for pressure transmitter of easy maintenance.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a protection device for pressure transmitter, includes piston tube and gas receiver, its characterized in that: the gas storage pipe is characterized in that one end of the gas storage pipe is connected with the pressure transmitter, one end of the gas storage pipe is fixedly connected with the piston pipe through threads, a piston and a piston rod are arranged in the piston pipe, a through hole is formed in the middle of the piston and is penetrated through by the piston rod, an end cap for limiting the piston is arranged at one end of the piston, a piston bottom support is arranged at the other end of the piston, a through hole is formed in the piston bottom support, the piston bottom support is arranged at the joint of the pressure transmitter and the liquid outlet pipe, the end cap faces the piston pipe, and a closed space formed by the piston pipe, the gas storage pipe and the piston is filled with protective gas.
As an improvement, the two ends of the piston pipe are provided with connectors, and the two ends of the gas storage pipe are provided with connector sleeves matched with the pressure transmitter connector and the piston pipe connector.
As an improvement, two ends of the piston are provided with arc-shaped grooves.
As an improvement, the plug is spherical.
As an improvement, a first sealing ring sealed with the piston pipe is arranged on the outer circumference of the piston, and a second sealing ring is arranged between the piston pipe and the air storage pipe.
As an improvement, the calibers of the inner walls of the piston pipe and the air storage pipe are the same.
Compared with the prior art, the utility model the advantage lie in: the liquid or gas to be detected is isolated from the diaphragm on the joint of the pressure transmitter by the protective gas filled in the closed space formed by the piston pipe, the gas storage pipe and the piston; the measured liquid or gas extrusion piston is converted into piston extrusion protective gas so as to transfer pressure, and the calibers of the inner walls of the piston pipe and the gas storage pipe are the same, so that the measurement precision is ensured; under special working conditions, the piston frequently collides with the plug, arc-shaped grooves are formed in two ends of the piston, and the plug is spherical, so that the service life is prolonged; the bottom end of the piston rod is provided with a fixedly installed plug, so that the piston is prevented from sliding out, and the stability is improved; and a first sealing ring is arranged between the piston and the piston pipe, and a second sealing ring is arranged between the piston pipe and the gas storage pipe, so that the airtightness in the pipe is ensured, and liquid leakage is prevented.
Drawings
Fig. 1 is a front view of a protective device for a pressure transmitter of the present invention.
Fig. 2 isbase:Sub>A sectional view in the directionbase:Sub>A-base:Sub>A ofbase:Sub>A front view ofbase:Sub>A protector forbase:Sub>A pressure transmitter of the present invention.
Fig. 3 is an exploded view of a protector for a pressure transmitter of the present invention.
As shown in the figure: 1. the piston comprises a piston tube 2, an air storage tube 3, a piston 4, a piston rod 5, a plug 6, a piston bottom support 7, a first sealing ring 8, a second sealing ring 8 and a piston rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Combine fig. 2 and fig. 3, the utility model discloses a protection device for pressure transmitter, including piston tube 1 and gas receiver 2, its characterized in that: the improved pneumatic pressure transmitter is characterized in that joints are arranged at two ends of the piston tube 1, joint sleeves matched with the pressure transmitter joint and the piston tube 1 joint are arranged at two ends of the gas storage tube 2, one end of the gas storage tube 2 is connected with the pressure transmitter, one end of the gas storage tube is fixedly connected with the piston tube 1 in a threaded manner, the piston tube 1 is internally provided with a piston 3 and a piston rod 4, a through hole is formed in the middle of the piston 3 and is penetrated by the piston rod 4, one end of the piston 3 is provided with a plug 5 which is fixedly installed, the piston 3 is prevented from falling off, the other end of the piston is provided with a piston base 6, the piston base 6 is installed at the joint of the pressure transmitter and the liquid outlet tube 2, the spherical plug 5 faces the piston tube 1, the gas storage tube 2, the piston 3 and the pressure transmitter joint form a movable closed space, protective gas is filled in the closed space formed by the piston tube 1, the gas storage tube 2 and the piston 3, the through hole is formed by the piston base 6, and the piston base 6 is soaked in the protective gas.
Referring to the attached drawing 2, arc-shaped grooves are formed in two ends of the piston 3, and the plugs 5 are spherical, so that the plugs 5 and the piston 3 are prevented from being frequently collided to cause damage under special working conditions. The inner wall calibers of the piston pipe 1 and the air storage pipe 2 are the same, so that pressure can be maintained, and the precision is improved. And a first sealing ring 7 sealed with the piston tube 1 is arranged on the outer circumference of the piston 3, and a second sealing ring 8 is arranged between the piston tube 1 and the gas storage tube 2, so that liquid leakage is avoided, and the stability is improved.
The utility model discloses when concrete implementation, combine figure 2, pour the protective gas into piston tube 1, gas storage tube 2 and the sealed space that piston 3 formed, link to each other gas storage tube 2 one end and pressure transmitter, 1 one end of piston tube links to each other with surveyed liquid or gas pipeline, between gas storage tube 2 and the pressure transmitter, piston tube 1 and the sealed circle of sheatheeing in between surveyed liquid or gas pipeline, prevent the weeping, when being surveyed liquid or gas pipeline internal pressure risees, surveyed liquid or gas pass through pipeline entering piston tube 1, be surveyed liquid or gas extrusion piston 3, piston 3 will be surveyed the pressure conversion that liquid or gas provided and become the pressure between protective gas and pressure transmitter diaphragm, pressure transmitter transmits pressure conversion into the signal of telecommunication, protective gas plays the effect of keeping apart surveyed liquid or gas contact diaphragm, and can slow down the temperature and rise suddenly or reduce the harm that brings for the pressure transmitter diaphragm, when being surveyed liquid or gas pipeline reduce, be surveyed liquid or gas internal pressure or gas exit from piston tube 1, piston 3 receive the suction outside the piston tube 1, 5 on the piston rod 4 restrict the end cap, prevent 3 and remove.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (6)
1. A protection device for pressure transmitter, includes piston tube (1) and gas receiver (2), its characterized in that: gas receiver (2) one end links to each other with pressure transmitter, and one end and piston pipe (1) thread fixed connection, be equipped with piston (3) and piston rod (4) in piston pipe (1), be equipped with the through-hole in the middle of piston (3), pass by piston rod (4), piston (3) one end is equipped with spacing end cap (5) to piston (3), and the other end is equipped with piston collet (6), be equipped with the through-hole on piston collet (6), install in pressure transmitter and gas receiver (2) junction piston collet (6), end cap (5) are towards piston pipe (1), the airtight space intussuseption that piston pipe (1), gas receiver (2) and piston (3) formed packs the protection gas.
2. A protection device for a pressure transmitter according to claim 1, characterized in that: the piston pipe (1) both ends are equipped with the joint, gas receiver (2) both ends are equipped with and connect and piston pipe (1) joint matched with adapter sleeve with pressure transmitter.
3. The protector for a pressure transmitter of claim 1, wherein: and arc-shaped grooves are formed in two ends of the piston (3).
4. A protection device for a pressure transmitter according to claim 1, characterized in that: the plug (5) is spherical.
5. The protector for a pressure transmitter of claim 1, wherein: and a first sealing ring (7) sealed with the piston pipe (1) is arranged on the outer circumference of the piston (3), and a second sealing ring (8) is arranged between the piston pipe (1) and the gas storage pipe (2).
6. A protection device for a pressure transmitter according to claim 1, characterized in that: the inner wall calibers of the piston pipe (1) and the air storage pipe (2) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677957.6U CN218411528U (en) | 2022-06-30 | 2022-06-30 | Protection device for pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677957.6U CN218411528U (en) | 2022-06-30 | 2022-06-30 | Protection device for pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218411528U true CN218411528U (en) | 2023-01-31 |
Family
ID=85012061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221677957.6U Active CN218411528U (en) | 2022-06-30 | 2022-06-30 | Protection device for pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218411528U (en) |
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2022
- 2022-06-30 CN CN202221677957.6U patent/CN218411528U/en active Active
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