CN212645841U

CN212645841U - Air-conduction pressure type liquid level sensor

Info

Publication number: CN212645841U
Application number: CN202021308689.1U
Authority: CN
Inventors: 王会容; 王慧芳
Original assignee: Taizhou Jia Bo Instrument Technology Co ltd
Current assignee: Taizhou Jia Bo Instrument Technology Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-03-02
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a gas conduction pressure type level sensor, including liquid transfer pipe and flange, the one end fixedly connected with flange of liquid transfer pipe, flange's one end fixedly connected with high-pressure air duct is kept away from to the liquid transfer pipe, the middle part of liquid transfer pipe is provided with disconnected liquid valve, the top of disconnected liquid valve is provided with the valve door handle, the inside both ends of high-pressure air duct all are provided with the elastic sealing pad, high-pressure air duct outside middle part is provided with the air valve, the one end that liquid transfer pipe was kept away from to the inside of high-pressure air duct is provided with the pressure detector, the one end fixedly connected with connecting cap of liquid transfer pipe is kept away from to high-. The utility model discloses in, be provided with the high-pressure air duct, the cooperation adds the pneumatic valve, can inject highly-compressed air, improves the conduction velocity of pressure greatly, does not have the measurement hysteresis, but the change pressure of short-term test liquid, and then the change height of detection liquid level has strengthened the practicality of sensor.

Description

Air-conduction pressure type liquid level sensor

Technical Field

The utility model relates to a sensor equipment technical field especially relates to an air conduction pressure type level sensor.

Background

The pressure type liquid level meter is a pressure sensor for measuring liquid level, comprising a static pressure liquid level meter, a liquid level transmitter, a liquid level sensor, a water level sensor, a pressure transmitter and the like, based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, an advanced foreign isolation type diffused silicon sensitive element or a ceramic capacitance pressure sensitive sensor is adopted to convert the static pressure into an electric signal, and the electric signal is converted into a standard electric signal (generally 4-20 mA/1-5 VDC) through temperature compensation and linear correction. The pressure type liquid level meter is suitable for liquid level measurement of various media in systems and industries such as petrochemical industry, metallurgy, electric power, pharmacy, water supply and drainage, environmental protection and the like. Exquisite structure, simple timing and nimble mounting means provide convenience for the user easily uses.

The existing pressure type liquid level sensor usually makes a pressure detector directly contact with liquid, the detection is easily influenced by the viscosity of the liquid, and although the existing air conduction pressure type liquid level sensor cannot be influenced by the viscosity of the liquid, the pressure conduction speed is slow due to the use of normal pressure gas, the change pressure of the liquid cannot be quickly detected, and only the hydrostatic pressure can be detected, so that the practicability of the sensor is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an air conduction pressure type liquid level sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a gas-conducting pressure type liquid level sensor comprises a liquid-conducting pipe and a connecting flange, wherein one end of the liquid-conducting pipe is fixedly connected with the connecting flange, one end of the liquid-conducting pipe, which is far away from the connecting flange, is fixedly connected with a high-pressure air-guide pipe, the middle part of the liquid-conducting pipe is provided with a liquid-breaking valve, a valve handle is arranged above the liquid-breaking valve, elastic sealing gaskets are arranged at two ends inside the high-pressure air-guide pipe, a gas-feeding valve is arranged at the middle part outside the high-pressure air-guide pipe, one end, which is far away from the liquid-conducting pipe, inside the high-pressure air-guide pipe is provided with a pressure detector, one end, which is far away from the liquid-conducting pipe, of the high-pressure air-guide pipe is fixedly connected with a connecting cap, one end, a first cable connecting seat is fixedly connected to the outer side of one end, away from the connecting cap, of the transmission cable, a protective shell is fixedly connected to the outer side of the upper part of the first cable connecting seat, a second cable connecting seat is fixedly connected to one end, away from the protective shell, of the bottom of the protective shell, a first data receiver is fixedly connected to one side, close to the first cable connecting seat, of the lower part of the inner part of the protective shell, a second data receiver is fixedly connected to one side, away from the first cable connecting seat, of the lower part of the inner part of the protective shell, a data converter is fixedly connected to the middle part of the lower part of the inner part of the protective shell, a data processor is fixedly connected to the middle part of one side, close to the first cable connecting seat, of the inner part of the protective shell, a power supply bin, the cable connector is characterized in that a signal converter is fixedly connected to one side, close to the first cable connector, of the upper portion of the interior of the protective shell, a signal transmitter is fixedly connected to one side, far away from the first cable connector, of the upper portion of the interior of the protective shell, and the signal transmitter is electrically connected with the signal converter.

As a further description of the above technical solution:

and a nameplate is arranged on the outer side of the middle part of the protective shell.

As a further description of the above technical solution:

the pressure detector and the temperature calibrator are both electrically connected with the signal amplifier.

As a further description of the above technical solution:

the signal amplifier is electrically connected with the first data receiver through a transmission cable.

As a further description of the above technical solution:

the first data receiver and the second data receiver are both electrically connected with the data converter.

As a further description of the above technical solution:

the data converter and the signal converter are both electrically connected with the data processor.

The utility model discloses following beneficial effect has:

1. the utility model discloses be provided with the high-pressure air duct, the cooperation adds the pneumatic valve, can inject highly-compressed air, improves the conduction velocity of pressure greatly, and the change pressure that can the short-term test liquid, and then the change height of detection liquid level has strengthened the practicality of sensor.

2. The utility model discloses be provided with signal converter and signal transmitter, cooperation data processor, usable long-range digital adjustment, the digitized control of being convenient for has strengthened the practicality of sensor.

Drawings

Fig. 1 is a schematic view of the overall structure of an air-conduction pressure type liquid level sensor provided by the present invention;

fig. 2 is a schematic structural view of a sensor main body of the air conduction pressure type liquid level sensor provided by the present invention;

fig. 3 is the utility model provides an internal structure schematic diagram of a protective housing of air conduction pressure type liquid level sensor.

Illustration of the drawings:

1. a liquid transfer pipe; 2. a connecting flange; 3. a high pressure gas-guide tube; 4. a liquid cut-off valve; 5. a valve handle; 6. an elastic sealing gasket; 7. a pressure detector; 8. a connecting cap; 9. a temperature calibrator; 10. a signal amplifier; 11. a transmission cable; 12. a first cable connection base; 13. a protective housing; 14. a first data receiver; 15. a second cable connecting base; 16. a second data receiver; 17. a data converter; 18. a power supply bin; 19. an energy supply battery; 20. a data processor; 21. a signal converter; 22. a signal transmitter; 23. a gas adding valve; 24. a nameplate.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a gas-conducting pressure type liquid level sensor comprises a liquid transfer pipe 1 and a connecting flange 2, one end of the liquid transfer pipe 1 is fixedly connected with the connecting flange 2, one end of the liquid transfer pipe 1, which is far away from the connecting flange 2, is fixedly connected with a high-pressure air duct 3, the middle part of the liquid transfer pipe 1 is provided with a liquid breaking valve 4, a valve handle 5 is arranged above the liquid breaking valve 4, both ends of the interior of the high-pressure air duct 3 are provided with elastic sealing gaskets 6, the middle part of the outer side of the high-pressure air duct 3 is provided with an air feeding valve 23, one end of the interior of the high-pressure air duct 3, which is far away from the liquid transfer pipe 1, is provided with a pressure detector 7, the high-pressure air duct 3 provided by the utility model can be injected with high-pressure air, the pressure conduction speed of the pressure is greatly improved, no measurement lag phenomenon, a connecting cap 8 is fixedly connected to one end of the high-pressure air duct 3 far away from the liquid transmission pipe 1, a temperature calibrator 9 is arranged at one end of the inside of the connecting cap 8 close to the liquid transmission pipe 1 to reduce temperature errors, a signal amplifier 10 is arranged at one end of the inside of the connecting cap 8 far away from the liquid transmission pipe 1, a transmission cable 11 is arranged at the center of one end of the connecting cap 8 far away from the liquid transmission pipe 1, a first cable connecting seat 12 is fixedly connected to the outer side of one end of the transmission cable 11 far away from the connecting cap 8, a protective shell 13 is fixedly connected to the outer side above the first cable connecting seat 12, a second cable connecting seat 15 is fixedly connected to one end of the bottom of the protective shell 13 far away from the protective shell 13, a first data receiver 14 is fixedly connected to one side of the inside lower part of the protective shell 13 close to the first cable connecting seat 12, and a second, a data converter 17 is fixedly connected to the middle part of the lower part of the inside of the protective casing 13, a data processor 20 is fixedly connected to the middle part of one side of the inside of the protective casing 13, which is close to the first cable connecting seat 12, a power supply cabin 18 is arranged at the middle part of one side of the inside of the protective casing 13, which is far away from the first cable connecting seat 12, an energy supply battery 19 is arranged inside the power supply cabin 18, a signal converter 21 is fixedly connected to one side of the upper part of the inside of the protective casing 13, which is close to the first cable connecting seat 12, a signal emitter 22 is fixedly connected to one side of the upper, and signal transmitter 22 and signal converter 21 electric connection, the utility model discloses the signal converter 21 and the signal transmitter 22 that set up, cooperation data processor 20, usable long-range digital adjustment, the digitized control of being convenient for has strengthened the practicality of sensor.

The outer side of the middle part of the protective casing 13 is provided with a nameplate 24 for displaying working parameters, the pressure detector 7 and the temperature calibrator 9 are both electrically connected with the signal amplifier 10, the signal amplifier 10 is electrically connected with the first data receiver 14 through the transmission cable 11, the first data receiver 14 and the second data receiver 16 are both electrically connected with the data converter 17, and the data converter 17 and the signal converter 21 are both electrically connected with the data processor 20, so that data processing and transmission are facilitated.

The working principle is as follows: the utility model discloses during the use, through the intercommunication of liquid transmission pipe 1 and high-pressure air duct 3, utilize high-pressure gas to carry out pressure conduction, improve the conduction velocity of pressure greatly, do not have the measurement hysteresis, but the change pressure of short-term test liquid, and then the change height of detection liquid level, just the utility model discloses the signal converter 21 and the signal transmitter 22 that set up, cooperation data processor 20, usable long-range digital adjustment, the digitized control of being convenient for has strengthened the practicality of sensor.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a gas conduction pressure type level sensor, includes liquid transfer pipe (1) and flange (2), its characterized in that: the one end fixedly connected with flange (2) of biography liquid pipe (1), the one end fixedly connected with high pressure air duct (3) of flange (2) are kept away from in biography liquid pipe (1), the middle part of biography liquid pipe (1) is provided with disconnected liquid valve (4), the top of disconnected liquid valve (4) is provided with valve handle (5), the inside both ends of high pressure air duct (3) all are provided with resilient seal pad (6), high pressure air duct (3) outside middle part is provided with air feed valve (23), the one end that biography liquid pipe (1) was kept away from in the inside of high pressure air duct (3) is provided with pressure detector (7), the one end fixedly connected with connecting cap (8) of biography liquid pipe (1) are kept away from in high pressure air duct (3), the one end fixedly connected with connecting cap (8) that the inside of connecting cap (8) is close to the one end of biography liquid pipe (1) is provided with temperature calibrator (9), the A transmission cable (11) is arranged at the center of one end of the connecting cap (8) far away from the liquid transmission pipe (1), a first cable connecting seat (12) is fixedly connected to the outer side of one end, far away from the connecting cap (8), of the transmission cable (11), a protective shell (13) is fixedly connected to the outer side of the upper portion of the first cable connecting seat (12), a second cable connecting seat (15) is fixedly connected to one end, far away from the protective shell (13), of the bottom of the protective shell (13), a first data receiver (14) is fixedly connected to one side, close to the first cable connecting seat (12), of the lower portion of the inner portion of the protective shell (13), a second data receiver (16) is fixedly connected to one side, far away from the first cable connecting seat (12), of the lower portion of the inner portion of the protective shell (13), and a data converter (17) is fixedly connected to the, the utility model discloses a cable connector, including the inside of protecting sheathing (13), one side middle part fixedly connected with data processor (20) that the inside of protecting sheathing (13) is close to first cable connector (12), one side middle part that first cable connector (12) was kept away from to the inside of protecting sheathing (13) is provided with power storehouse (18), the inside of power storehouse (18) is provided with energy supply battery (19), one side fixedly connected with signal converter (21) that the inside top of protecting sheathing (13) is close to first cable connector (12), one side fixedly connected with signal transmitter (22) of first cable connector (12) are kept away from to the inside top of protecting sheathing (13), just signal transmitter (22) with signal converter (21) electric connection.

2. The air conduction pressure type liquid level sensor according to claim 1, wherein: and a nameplate (24) is arranged on the outer side of the middle part of the protective shell (13).

3. The air conduction pressure type liquid level sensor according to claim 1, wherein: the pressure detector (7) and the temperature calibrator (9) are both electrically connected with the signal amplifier (10).

4. The air conduction pressure type liquid level sensor according to claim 1, wherein: the signal amplifier (10) is electrically connected with the first data receiver (14) through a transmission cable (11).

5. The air conduction pressure type liquid level sensor according to claim 1, wherein: the first data receiver (14) and the second data receiver (16) are both electrically connected with the data converter (17).

6. The air conduction pressure type liquid level sensor according to claim 1, wherein: the data converter (17) and the signal converter (21) are both electrically connected with the data processor (20).