CN209894392U

CN209894392U - High-precision pressure transmitter

Info

Publication number: CN209894392U
Application number: CN201920996336.6U
Authority: CN
Inventors: 刘仁宏
Original assignee: Red Flag Instrument (jiangsu) Co Ltd
Current assignee: Red Flag Instrument (jiangsu) Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-01-03
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a high accuracy pressure transmitter, including the measuring block, the one end internally mounted of measuring block has the fixed long screw, the joint is installed to the one end of measuring block, the ring flange is installed to one side of measuring block, the pressure connector is installed to one side of ring flange, ring flange set screw is all installed to the upper end and the lower extreme of pressure connector, measure the block upper end and install the connecting rod, the rotatory fixed screw of watchcase is installed in the outside of connecting rod, the upper end of the rotatory fixed screw of watchcase is provided with the information signboard, the reading connecting block is installed to the upper end of connecting rod, the gauge outfit cavity is installed to the one end of reading connecting block. The utility model discloses a series of structural design make the device can avoid the water hammer phenomenon to destroy the sensor of device inside to keep measurement accuracy, and can confirm whether operating environment temperature exceeds standard on the device, reduce the work complexity.

Description

High-precision pressure transmitter

Technical Field

The invention relates to the technical field of pressure transmitter application, in particular to a high-precision pressure transmitter.

Background

Along with the rapid development of social economy, the application of the pressure transmitter is more and more concerned by people, the pressure transmitter is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, war industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like. Pressure transmitters are classified into two types, electric and pneumatic. The pneumatic unified output signal is a gas pressure of twenty to one hundred Pa. The pressure transmitter is mainly used for transmitting a pressure signal to electronic equipment, and then the principle of displaying the pressure on a computer is that: the pressure of an electronic signal, which is an electronic signal for converting a mechanical signal of the pressure of water pressure into current (four to twenty mA), is in a linear relationship with the voltage or the current, and is generally in a direct proportion relationship.

However, the existing high-precision pressure transmitter is easy to generate water hammer inside, damage is caused to an inductor in the device, extra temperature measuring equipment is needed to confirm the working environment, and the working complexity is high; therefore, the existing requirements are not met, and a high-precision pressure transmitter is provided for the requirement.

Disclosure of Invention

The invention aims to provide a high-precision pressure transmitter, which aims to solve the problems that the existing high-precision pressure transmitter proposed in the background art is easy to generate a water hammer phenomenon inside, damages an inductor in the device and affects the precision, an additional temperature measuring device is needed to confirm the working environment, the working complexity is high, and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a high-precision pressure transmitter comprises a measuring block, wherein a fixed long screw is arranged inside one end of the measuring block, a joint is arranged at one end of the measuring block, a flange plate is arranged on one side of the measuring block, a pressure connecting port is arranged on one side of the flange plate, flange plate fixing screws are arranged at the upper end and the lower end of the pressure connecting port, a connecting rod is arranged at the upper end of the measuring block, a watchcase rotating fixing screw is arranged on the outer side of the connecting rod, an information signboard is arranged at the upper end of the watchcase rotating fixing screw, a reading connecting block is arranged at the upper end of the connecting rod, a gauge head cavity is arranged at one end of the reading connecting block, a data display screen is arranged inside the gauge head cavity, an infrared temperature measuring alarm is arranged outside the reading connecting block, and an AR320 temperature measuring instrument is arranged, the temperature measuring device comprises an AR320 temperature measuring instrument, and is characterized in that a circuit board is installed at the upper end of the AR320 temperature measuring instrument, a data processing block is installed at the upper end of the circuit board, a loudspeaker is installed at the upper end of the data processing block, an overtemperature alarm lamp is installed at one end of the loudspeaker, a transmission pipe is installed at the lower end of a joint, an inflation valve is installed at the upper end of the transmission pipe, a pressure gauge is installed at the lower end of the transmission pipe, a water hammer receiver shell is installed at one end of the pressure gauge, a rear baffle is installed at one end of the water hammer receiver shell, an air containing cavity is installed on the inner surface of the water hammer receiver shell, a piston.

Preferably, one end of the measuring block is completely attached to the transmission pipe, and the measuring block is connected with the transmission pipe through a side exhaust valve hole formed in one side of the measuring block.

Preferably, one side of the information signboard is completely attached to the connecting rod, and the information signboard is connected with the connecting rod through a screw.

Preferably, the lower end of the inflation valve is completely attached to the upper end of the transmission pipe, and the inflation valve is connected with the transmission pipe through threads.

Preferably, one side of the infrared temperature measurement alarm is completely attached to the reading connecting block, and the reading connecting block is connected with the infrared temperature measurement alarm in a welding mode.

Preferably, the AR320 temperature measuring instrument is electrically connected with the circuit board.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, when shock waves are transmitted into the water hammer eliminator, water shock waves act on the piston, the piston moves towards the direction of the air containing cavity, the movement stroke of the piston is related to the gas pressure in the air containing cavity and the size of the water shock waves, and the piston moves up and down under the dual actions of gas with certain pressure and irregular water shock to form dynamic balance, so that irregular water shock wave oscillation is effectively eliminated, and the device can prevent the water hammer phenomenon from damaging a sensor in the device;

2. according to the invention, the infrared temperature measurement alarm is arranged on one side of the gauge outfit cavity, the AR320 temperature measurement instrument is arranged in the infrared temperature measurement alarm, the AR320 temperature measurement instrument can reflect infrared rays and receive reflected signals, the infrared rays reflect back data when contacting the temperature wavelength of a measured object, the signals are conducted to the circuit board through the wires, the circuit board is converted and then reaches the data processing block, the data processing block processes the signals, when the working environment temperature exceeds, the data processing block enables the loudspeaker to give an alarm, the over-temperature alarm lamp begins to flash, so that the device can confirm whether the working environment temperature exceeds the standard, and the working complexity is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a side view of the present invention in its entirety;

FIG. 3 is a partial structural view of the water hammer arrestor according to the present invention;

fig. 4 is a schematic view of a partial structure of the infrared temperature measurement alarm of the invention.

In the figure: 1. a measuring block; 2. fixing the long screw; 3. a flange plate; 4. a pressure connection port; 5. the flange plate is fixed with a screw; 6. a connecting rod; 7. a conveying pipe; 8. an inflation valve; 9. a pressure gauge; 10. a water hammer catcher housing; 11. a tailgate; 12. the watch case rotates the set screw; 13. an information signboard; 14. a reading connecting block; 15. an infrared temperature measurement alarm; 16. a gauge head chamber; 17. a data display screen; 18. a joint; 19. an air containing cavity; 20. a piston; 21. a seal ring; 22. an AR320 thermodetector; 23. a circuit board; 24. a data processing block; 25. a speaker; 26. overtemperature alarm lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, an embodiment of the present invention includes: a high-precision pressure transmitter comprises a measuring block 1, a fixed long screw 2 is arranged inside one end of the measuring block 1, a connector 18 is arranged at one end of the measuring block 1, a flange 3 is arranged on one side of the measuring block 1, a pressure connecting port 4 is arranged on one side of the flange 3, flange fixing screws 5 are arranged at the upper end and the lower end of the pressure connecting port 4, a connecting rod 6 is arranged at the upper end of the measuring block 1, a meter shell rotating fixing screw 12 is arranged on the outer side of the connecting rod 6, an information signboard 13 is arranged at the upper end of the meter shell rotating fixing screw 12, a reading connecting block 14 is arranged at the upper end of the connecting rod 6, a meter head cavity 16 is arranged at one end of the reading connecting block 14, a data display screen 17 is arranged inside the meter head cavity 16, an infrared temperature measurement alarm 15 is arranged on the outer side of the reading connecting block, temperature detection is carried out on a working environment, damage to a device due to overhigh temperature is avoided, an AR320 thermodetector 22 is arranged inside an infrared thermometric alarm 15, a circuit board 23 is arranged at the upper end of the AR320 thermodetector 22, a data processing block 24 is arranged at the upper end of the circuit board 23, a loudspeaker 25 is arranged at the upper end of the data processing block 24, an overtemperature alarm lamp 26 is arranged at one end of the loudspeaker 25, a transmission pipe 7 is arranged at the lower end of a connector 18, the transmission pipe 7 can guide a water hammer phenomenon generated inside a measuring block 1 into a water hammer receiver shell 10 to avoid damage of the water hammer phenomenon to a sensor inside the measuring block 1, an inflation valve 8 is arranged at the upper end of the transmission pipe 7, a pressure gauge 9 is arranged at the lower end of the transmission pipe 7, a water hammer receiver shell 10 is arranged at one end of the pressure gauge 9, a rear baffle 11 is arranged at one end of the water hammer receiver shell 10, and an air accommodating, one end of the air containing cavity 19 is provided with a piston 20, and one end of the piston 20 is provided with a sealing ring 21.

Further, the one end of measuring block 1 and transmission pipe 7 laminate completely, and measuring block 1 is connected through the side exhaust valve that measuring block 1 one side was equipped with transmission pipe 7, and transmission pipe 7 can be with the leading-in inside of water hammer inhaler shell 10 of the water hammer phenomenon of the inside production of measuring block 1, avoids the damage that the water hammer phenomenon led to the fact to the inside sensor of measuring block 1.

Further, one side of the information signboard 13 is completely attached to the connecting rod 6, the information signboard 13 is connected with the connecting rod 6 through screws, and the information signboard 13 can print information such as the model and the date of delivery of the device, so that the device information can be briefly explained for a purchaser.

Further, the lower end of the inflation valve 8 is completely attached to the upper end of the transmission pipe 7, the inflation valve 8 is in threaded connection with the transmission pipe 7, the inflation valve 8 can control the flow speed of the water hammer entering the water hammer catcher shell 10, and transmission between the measuring block 1 and the water hammer catcher shell 10 can be controlled better.

Further, one side of infrared temperature measurement alarm 15 is laminated with reading connecting block 14 completely, and reading connecting block 14 passes through welded connection with infrared temperature measurement alarm 15, and infrared temperature measurement alarm 15 can carry out temperature detection to operational environment before equipment puts into operational environment, avoids the high damage to the device of high temperature.

Further, the AR320 thermometer 22 is electrically connected to the circuit board 23, and the AR320 thermometer 22 may transmit the obtained information to the circuit board 23 through a wire, and the information is converted by the circuit board 23 and then processed by the data processing block 24.

The working principle is as follows: when the water hammer arrester is used, a side exhaust valve hole is formed in one side of the measuring block 1, the water hammer arrester shell 10 is connected with the measuring block 1 through the transmission pipe 7, the transmission pipe 7 can guide a water hammer phenomenon generated inside the measuring block 1 into the water hammer arrester shell 10, the upper end of the transmission pipe 7 is provided with the inflation valve 8, the inflation valve 8 can control the flow rate of the water hammer entering the water hammer arrester shell 10, the lower end of the transmission pipe 7 is provided with the pressure gauge 9, the pressure gauge 9 can display the pressure inside the water hammer arrester shell 10, the water hammer arrester shell 10 is internally provided with a closed air accommodating cavity 19, the lower end of the water hammer arrester shell is provided with the piston 20, when impact waves are transmitted into the water hammer arrester, water hammer waves act on the piston 20, and the piston 20 moves towards the direction of the air accommodating cavity 19. The moving stroke of the piston 20 is related to the gas pressure and the water hammer wave size in the gas containing cavity 19, and the piston 20 moves up and down under the dual actions of gas with certain pressure and irregular water hammer to form dynamic balance, so that irregular water hammer wave oscillation is effectively eliminated, and the device can prevent the water hammer phenomenon from damaging a sensor in the device; install infrared temperature measurement alarm 15 in one side of gauge outfit cavity 16, infrared temperature measurement alarm 15's internally mounted has AR320 thermoscope 22, AR320 thermoscope 22 can reflect the infrared ray and receive the reflected signal, the temperature wavelength of infrared ray at the contact testee, the reflected signal returns data, with signal conduction circuit board 23 through the wire, reach data processing block 24 after having circuit board 23 conversion, data processing block 24 is after signal processing, when the operational environment temperature exceedes, data processing block 24 will make speaker 25 report to the police, overtemperature alarm lamp 26 begins to blink, make the device can confirm whether operational environment temperature exceeds standard, reduce the work complexity.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A high accuracy pressure transmitter, includes gauge block (1), its characterized in that: the measuring device is characterized in that a fixed long screw (2) is mounted inside one end of the measuring block (1), a joint (18) is mounted at one end of the measuring block (1), a flange plate (3) is mounted at one side of the measuring block (1), a pressure connecting port (4) is mounted at one side of the flange plate (3), flange plate fixing screws (5) are mounted at the upper end and the lower end of the pressure connecting port (4), a connecting rod (6) is mounted at the upper end of the measuring block (1), a watch case rotating fixing screw (12) is mounted at the outer side of the connecting rod (6), an information signboard (13) is arranged at the upper end of the watch case rotating fixing screw (12), a reading connecting block (14) is mounted at the upper end of the connecting rod (6), a watch head cavity (16) is mounted at one end of the reading connecting block (14), and a data display screen (17) is, an infrared temperature measurement alarm (15) is installed on the outer side of the reading connecting block (14), an AR320 temperature measurement instrument (22) is installed inside the infrared temperature measurement alarm (15), a circuit board (23) is installed at the upper end of the AR320 temperature measurement instrument (22), a data processing block (24) is installed at the upper end of the circuit board (23), a loudspeaker (25) is installed at the upper end of the data processing block (24), an overtemperature alarm lamp (26) is installed at one end of the loudspeaker (25), a transmission pipe (7) is installed at the lower end of the connector (18), an inflation valve (8) is installed at the upper end of the transmission pipe (7), a pressure gauge (9) is installed at the lower end of the transmission pipe (7), a water hammer storage device shell (10) is installed at one end of the pressure gauge (9), a rear baffle (11) is installed at one end of the water hammer storage device, an air containing cavity (19) is arranged on the inner surface of the water hammer absorber shell (10), a piston (20) is arranged at one end of the air containing cavity (19), and a sealing ring (21) is arranged at one end of the piston (20).

2. A high accuracy pressure transmitter as claimed in claim 1, wherein: one end of the measuring block (1) is completely attached to the transmission pipe (7), and the measuring block (1) is connected with the transmission pipe (7) through a side exhaust valve hole formed in one side of the measuring block (1).

3. A high accuracy pressure transmitter as claimed in claim 1, wherein: one side of the information signboard (13) is completely attached to the connecting rod (6), and the information signboard (13) is connected with the connecting rod (6) through a screw.

4. A high accuracy pressure transmitter as claimed in claim 1, wherein: the lower end of the inflation valve (8) is completely attached to the upper end of the transmission pipe (7), and the inflation valve (8) is connected with the transmission pipe (7) through threads.

5. A high accuracy pressure transmitter as claimed in claim 1, wherein: one side of the infrared temperature measurement alarm (15) is completely attached to the reading connecting block (14), and the reading connecting block (14) is connected with the infrared temperature measurement alarm (15) in a welding mode.

6. A high accuracy pressure transmitter as claimed in claim 1, wherein: the AR320 temperature measuring instrument (22) is electrically connected with the circuit board (23).