CN211347195U - High-temperature diaphragm pressure transmitter - Google Patents

High-temperature diaphragm pressure transmitter Download PDF

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Publication number
CN211347195U
CN211347195U CN201922469139.1U CN201922469139U CN211347195U CN 211347195 U CN211347195 U CN 211347195U CN 201922469139 U CN201922469139 U CN 201922469139U CN 211347195 U CN211347195 U CN 211347195U
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China
Prior art keywords
connector
side wall
pressure
transmitter
pressure measuring
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Active
Application number
CN201922469139.1U
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Chinese (zh)
Inventor
关宇洋
李莹娟
关明洋
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Shanghai Meixu Measurement And Control Technology Co ltd
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Shanghai Meixu Measurement And Control Technology Co ltd
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Priority to CN201922469139.1U priority Critical patent/CN211347195U/en
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Abstract

The utility model discloses a high-temperature diaphragm pressure transmitter in the technical field of transmitters, which comprises a transmitter body, a power connector, a sealing connector and a pressure detector, wherein a circuit board is arranged in the transmitter body, a display screen is arranged at the top of the front side wall of the transmitter body, the power connector is arranged at the central position of the top of the transmitter body, the sealing connector is arranged at the central position of the bottom of the transmitter body, an information transmission pipe is sleeved at the central position of the right side wall of the sealing connector, the other end of the information transmission pipe is connected with a connector in a threaded manner, the right side wall of the connector is connected with the pressure detector in a threaded manner, an induction resistor is arranged at the central position of the inner cavity of the pressure detector, a pressure measuring probe is arranged on the right side wall of the induction resistor, heating devices are arranged at the top and the bottom of the right side of the inner cavity of the, and meanwhile, the service life of the transmitter is prolonged.

Description

High-temperature diaphragm pressure transmitter
Technical Field
The utility model relates to a changer technical field specifically is a high temperature diaphragm pressure transmitter.
Background
The pressure transmitter is mainly used for transmitting a pressure signal to electronic equipment, and then the principle of displaying the pressure in a computer is as follows: the pressure of an electronic signal, which is an electronic signal for converting a mechanical signal of the pressure of water pressure into current (4-20mA), is in a linear relationship with the voltage or the current, and is generally in a direct ratio relationship. Therefore, the voltage or current output by the transmitter is increased along with the increase of the pressure, so that two pressures of a measured medium of the pressure transmitter with a relation of the pressure and the voltage or the current are obtained, the two pressures are introduced into a high pressure chamber and a low pressure chamber, the pressure of the low pressure chamber adopts the atmospheric pressure or vacuum, acts on the isolating diaphragms on the two sides of the sensitive element, and is transmitted to the two sides of the measuring diaphragm through the isolating diaphragms and filling liquid in the element.
The diaphragm pressure sensor is suitable for closed occasions because the isolating diaphragm is in large-area contact with a medium; especially viscous or pasty media and strongly corrosive liquids, or media rich in particles.
When the temperature of a detection medium of the existing diaphragm pressure transmitter is too high or severe lifting temperature change occurs, the filling liquid can generate large change in volume due to the property of expansion with heat and contraction with cold, and the volume change can result in generation of internal pressure, and the force can act on a pressure sensing diaphragm of the pressure transmitter, so that a pressure signal received by a pressure transmitting head is distorted, the measurement precision is further influenced, the measurement error is increased, and meanwhile, the diaphragm pressure transmitter is easy to damage in the use process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature diaphragm pressure transmitter, in order to solve the current diaphragm pressure transmitter who proposes in the above-mentioned background art when the high temperature of detection medium or take place acutely to go up and down the temperature change, filling liquid can take place the great change on the volume because the nature of expend with heat and contract with cold, and volume change can lead to producing the internal pressure, this power can be used in pressure transmitter's pressure sensing diaphragm, make the pressure signal that pressure transmitting head received take place the distortion, and then influence measurement accuracy, increase measuring error, the problem of damaging easily in the use simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature diaphragm pressure transmitter, includes changer body, power connector, sealing connector and pressure measuring ware, this internal circuit board that is provided with of changer, the preceding lateral wall top of changer body is provided with the display screen, the top central point of changer body puts installation power connector, the bottom central point of changer body puts installation sealing connector, the information transfer pipe has been cup jointed to sealing connector's right side wall central point, the other end threaded connection connector of information transfer pipe, the right side wall threaded connection pressure measuring ware of connector, sensing resistor is installed to the inner chamber central point of pressure measuring ware, the pressure measurement probe is installed to sensing resistor's right side wall, heating device is installed to the inner chamber right side top and the bottom of pressure measuring ware.
Preferably, the circuit board is located on the rear side wall of the inner cavity of the display screen, and the circuit board is connected with an external power supply through a power supply connector.
Preferably, a plurality of conductors are bonded to the front side wall of the power connector, and sliding grooves are formed in the left side wall and the right side wall of the inner cavity of the power connector.
Preferably, the bottom of the sealing connector is bonded with a protective pad, the protective pad is a rubber protective pad, and anti-skid lines are arranged at the bottom of the protective pad.
Preferably, the outer surface of the pressure meter is sleeved with a dustproof sleeve, and the dustproof sleeve is a glass dustproof sleeve.
Compared with the prior art, the beneficial effects of the utility model are that: the medium is measured for pressure through the sensing resistor and the pressure measuring probe in the pressure measuring device, and the volume can not be changed by utilizing the heating device, so that the measurement precision can not be influenced, the measurement error is reduced, the transmitter is protected by the gasket at the bottom of the sealed connector and the dustproof sleeve on the pressure measuring device, and the service life of the transmitter is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a power supply connection structure of the present invention;
fig. 3 is a schematic diagram of the pressure detector of the present invention.
In the figure: transmitter body 100, display screen 110, power connector 200, conductor 210, spout 220, sealed connector 300, information transmission pipe 310, manometer 400, connector 410, sense resistor 420, manometer probe 430, heating device 440.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a following technical scheme: referring to fig. 1, a transmitter body 100, a power connector 200, a sealing connector 300 and a pressure gauge 400;
referring to fig. 1, a transmitter body 100 has a display screen 110 and a circuit board, specifically, the display screen 100 is fixedly installed on the top of a front side wall of the transmitter body 100, the circuit board is electrically connected to a rear side wall of the display screen 110, the transmitter body 100 is used for displaying a pressure detected medium, the display screen 110 is used for displaying a pressure value, the circuit board is used for converting pressure information into data, and the transmitter body 100 is a diaphragm pressure transmitter model;
referring to fig. 1 and 2, the power connector 200 has a conductor 210 and a sliding groove 220, the power connector 200 is installed at a top center position of the transmitter body 100, specifically, the power connector 200 is welded at the top center position of the transmitter body 100, the conductor 210 is welded at a front side wall of the power connector 200, the sliding groove 220 is opened at left and right side walls of an inner cavity of the power connector 200, the power connector 200 is used for connecting an external power source, the conductor 210 is used for conducting electricity, the power connector 200 is made of a plastic material, and the conductor 210 is made of a copper material;
referring to fig. 1 again, the sealing connector 300 has an information transmitting tube 310, the sealing connector 300 is installed at the bottom center position of the transmitter body 100, specifically, the sealing connector 300 is welded at the bottom center position of the transmitter body 100, the information transmitting tube 310 is sleeved at the right side wall center position of the sealing connector 300, the sealing connector 300 is used for transmitting pressure signals, the information transmitting tube 310 is used for transmitting pressure signals, and both the sealing connector 300 and the information transmitting tube 310 are made of stainless steel;
referring to fig. 1 and 3, the pressure gauge 400 has a connector 410, a sensing resistor 420, a pressure measuring probe 430 and a heating device 440, the pressure gauge 400 is installed on the right side of the information transmission pipe 310 through the connector 410, specifically, the pressure gauge 400 is connected to the right side of the information transmission pipe 310 through the connector 410 in a threaded manner, the connector 410 is connected to the left side of the pressure gauge 400 in a threaded manner, the sensing resistor 420 is installed in the pressure gauge 400, the pressure measuring probe 430 is electrically connected to the right side wall of the pressure gauge 400, the heating device 440 is adhered to the top and bottom of the right side of the inner cavity of the pressure gauge 400, the pressure gauge 400 is used for measuring the pressure of a medium, the connector 410 is used for connecting the pressure gauge 400, the sensing resistor 420 is used for measuring the size of the medium, the pressure measuring probe 430.
In specific use, a person skilled in the art powers on the power connector 200, puts the pressure measuring probe 430 of the pressure detector 400 into the medium, the pressure measuring probe 430 is used for detecting the pressure of the medium, a pressure sensor is arranged in the pressure measuring probe 430, and then transmits pressure data of the pressure sensor to the sensing resistor 420 to detect the pressure of the medium, the accuracy of the pressure gauge 400 is not affected by the expansion and contraction caused by high temperature or low temperature through the heating device 440, the heating device 440 converts the electric energy into the heat energy through the energy conversion, thereby heat the manometer 400, carry out the experiment to can not receive the high temperature to influence the precision that pressure detected, in rethread information transmission pipe 310 and sealing connector 300 carried pressure information to changer 100, convert pressure information into data through the circuit board, utilize display screen 110 to show.
Referring to fig. 1 again, in order to improve the service life of the transmitter, a protection pad is bonded to the bottom of the sealing connector 300 and is made of rubber, anti-slip lines are formed at the bottom of the protection pad, a dust-proof sleeve is sleeved on the outer surface of the pressure measuring device 400 and is made of glass, so that the transmitter can be protected, damage is avoided, and the service life of the transmitter can be prolonged.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. A high temperature diaphragm pressure transmitter, characterized by: including changer body (100), power connector (200), sealing connector (300) and pressure measuring ware (400), be provided with the circuit board in the changer body (100), the preceding lateral wall top of changer body (100) is provided with display screen (110), top central point of changer body (100) installs power connector (200), bottom central point of changer body (100) installs sealing connector (300), information transmission pipe (310) has been cup jointed to the right side wall central point of sealing connector (300), the other end threaded connection connector (410) of information transmission pipe (310), the right side wall threaded connection pressure measuring ware (400) of connector (410), sensing resistor (420) are installed to the inner chamber central point of pressure measuring ware (400), pressure measuring probe (430) are installed to the right side wall of sensing resistor (420), and heating devices (440) are arranged at the top and the bottom of the right side of the inner cavity of the pressure measuring device (400).
2. A high temperature diaphragm pressure transmitter as claimed in claim 1, wherein: the circuit board is positioned on the rear side wall of the inner cavity of the display screen (110), and is connected with an external power supply through the power supply connector (200).
3. A high temperature diaphragm pressure transmitter as claimed in claim 1, wherein: the front side wall of the power connector (200) is bonded with a plurality of conductors (210), and the left side wall and the right side wall of the inner cavity of the power connector (200) are both provided with sliding grooves (220).
4. A high temperature diaphragm pressure transmitter as claimed in claim 1, wherein: the bottom of the sealing connector (300) is bonded with a protective pad, the protective pad is a rubber protective pad, and anti-skid lines are arranged at the bottom of the protective pad.
5. A high temperature diaphragm pressure transmitter as claimed in claim 1, wherein: the outer surface of the pressure measuring device (400) is sleeved with a dustproof sleeve, and the dustproof sleeve is a glass dustproof sleeve.
CN201922469139.1U 2019-12-31 2019-12-31 High-temperature diaphragm pressure transmitter Active CN211347195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922469139.1U CN211347195U (en) 2019-12-31 2019-12-31 High-temperature diaphragm pressure transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922469139.1U CN211347195U (en) 2019-12-31 2019-12-31 High-temperature diaphragm pressure transmitter

Publications (1)

Publication Number Publication Date
CN211347195U true CN211347195U (en) 2020-08-25

Family

ID=72103488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922469139.1U Active CN211347195U (en) 2019-12-31 2019-12-31 High-temperature diaphragm pressure transmitter

Country Status (1)

Country Link
CN (1) CN211347195U (en)

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