CN212363369U - Integrated magnetostrictive liquid level meter - Google Patents
Integrated magnetostrictive liquid level meter Download PDFInfo
- Publication number
- CN212363369U CN212363369U CN202021148339.3U CN202021148339U CN212363369U CN 212363369 U CN212363369 U CN 212363369U CN 202021148339 U CN202021148339 U CN 202021148339U CN 212363369 U CN212363369 U CN 212363369U
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- instrument
- liquid level
- bottom end
- channel joint
- pressure transmitter
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Abstract
The utility model discloses an integrated magnetostrictive liquid level meter, which comprises an instrument, an electronic bin and a protection tube, wherein a pressure transmitter is arranged at the left end of the instrument, and the instrument comprises a front shell cover, a rear shell cover, a shell, a cable stuffing box, a signal conversion plate and a wiring board; the pressure transmitter comprises a sensor seat, a sealing gasket, a pressure probe, a sealing ring and a locking nut; the left end of the pressure transmitter is provided with a bent channel joint, the bottom end of the bent channel joint is provided with a gas guide tube, the lower end of the gas guide tube is provided with an inspection valve and a straight channel joint, the bottom end of the straight channel joint is provided with a flange, the bottom end of the middle part of the flange is provided with a protection tube, the inner side of the protection tube is provided with a probe rod, the inner side of the probe rod is provided with a waveguide wire and a temperature sensor, and the; the bottom end of the instrument is provided with an electronic bin and a signal conversion module. The utility model discloses reduce product cost, reduced the maintenance space, reduced measurement system's fault rate, maintained for the maintenance and provided convenience.
Description
Technical Field
The utility model relates to a magnetostrictive liquid level meter technical field specifically is integrated type magnetostrictive liquid level meter.
Background
The magnetostrictive liquid level meter is a floating ball type liquid level meter, which mainly comprises an electronic transmitter, a floating ball and a probe rod (a waveguide filament is arranged inside the electronic transmitter). A floating ball is arranged outside the probe rod and can move up and down along the probe rod along with the change of the liquid level. A group of permanent magnetic rings is arranged in the floating ball. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the floating ball, the magnetic field around the floating ball changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of the floating ball, and the pulse is transmitted back along the waveguide wire at a fixed speed and is detected by the detection mechanism. The position of the floating ball, namely the position of the liquid level can be accurately determined by measuring the time difference between the pulse current and the torsional wave.
The magnetostrictive liquid level measurement is a mature liquid level measurement technology, and has the advantages of strong reliability, high precision, good safety, simple installation and maintenance and the like, thereby being widely applied. However, for some specific applications, such as ship cargo holds, oil tanks, etc., it is necessary to measure not only the level of the medium liquid, but also the temperature of the medium liquid and the pressure above the liquid. Therefore, three different sensors of liquid level, temperature and pressure need to be installed in the same measuring place, so that higher cost and larger installation space are needed, and the increase of the failure rate of the whole measuring system and the inconvenience of maintenance are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integrated type magnetostrictive liquid level meter to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the integrated magnetostrictive liquid level meter comprises an instrument, an electronic bin and a protection tube, wherein a pressure transmitter is arranged at the left end of the instrument, a front shell cover is arranged at the front end of the instrument, a rear shell cover is arranged at the rear end of the instrument, a shell is arranged in the middle of the instrument, a cable stuffing box is arranged at the right end of the instrument, a signal conversion plate is arranged on the inner side of the front shell cover, and a wiring board is arranged on the inner side of the rear; the right end of the pressure transmitter is provided with a sensor seat, the inner side of the sensor seat is provided with a sealing gasket, the left end of the sealing gasket is provided with a pressure probe, the outer side of the sensor seat is provided with a sealing ring, and the left side of the sensor seat is provided with a locking nut.
The left end of the pressure transmitter is provided with a bent channel joint, the bottom end of the bent channel joint is provided with a gas guide tube, the lower end of the gas guide tube is provided with an inspection valve, the bottom end of the inspection valve is provided with a straight channel joint, the bottom end of the straight channel joint is provided with a flange, the bottom end of the middle part of the flange is provided with a protection tube, the inner side of the protection tube is provided with a probe rod, the inner side of the probe rod is provided with a waveguide wire, the middle part of the inner wall of the probe rod is provided; an electronic bin is installed at the bottom end of the instrument, and a signal conversion module is installed on the inner side of the electronic bin.
As a further aspect of the present invention: the pressure transmitter is connected with the instrument through threads, the flange is connected with the electronic bin through threads, and the electronic bin is connected with the instrument through threads.
As a further aspect of the present invention: the flange is provided with a measuring hole, and the straight channel joint is connected with the measuring hole and the maintenance valve.
As a further aspect of the present invention: the bottom end of the protection tube is plugged by a metal plug.
As a further aspect of the present invention: the magnetic floating ball is hollow and is in sliding connection with the protection pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the liquid level, the temperature and the pressure signals can be monitored simultaneously, a liquid level meter, a pressure transmitter and a temperature sensor do not need to be installed respectively, the production cost of the device is saved, and the installation space of the monitoring device is reduced.
2. Meanwhile, the three signals are monitored and converted into one path of communication signal to be output, the three signals can be output only through one communication cable, the cable cost is reduced, and the workload and the wiring cost of equipment installation are reduced; the failure rate of the measuring system is reduced through three-in-one measurement, and convenience is provided for maintenance.
3. The pressure transmitter is arranged outside the measured point, and an overhaul valve is arranged between the pressure transmitter and the measured point; the probe rod is arranged in the closed protection tube and is not in direct contact with a measured medium, and the sensor can be maintained and replaced under the condition that the measured cabin is closed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the upper end of the middle instrument of the present invention.
Fig. 3 is the structure diagram of the inner side of the middle pressure transmitter of the present invention.
Fig. 4 is a schematic structural diagram of the front end of the instrument of the present invention.
Fig. 5 is a schematic structural diagram of the rear end of the middle instrument of the present invention.
In the figure: 1-instrument, 2-pressure transmitter, 3-curved channel joint, 4-gas guide tube, 5-maintenance valve, 6-straight pipe joint, 7-flange, 8-magnetic floating ball, 9-gasket, 10-temperature sensor, 11-probe rod, 12-protection tube, 13-waveguide wire, 14-signal conversion module, 15-electronic bin, 16-front shell cover, 17-shell, 18-rear shell cover, 19-cable stuffing box, 20-signal conversion board, 21-wiring board, 22-sensor seat, 23-sealing gasket, 24-pressure probe, 25-sealing ring and 26-locking nut.
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.
Example 1
Referring to fig. 1-5, in the embodiment of the present invention, an integrated magnetostrictive liquid level meter includes an instrument 1, an electronic cabin 15 and a protection tube 12, a pressure transmitter 2 is installed at the left end of the instrument 1, a front cover 16 is installed at the front end of the instrument 1, a rear cover 18 is installed at the rear end of the instrument 1, a housing 17 is installed at the middle part of the instrument 1, a cable stuffing box 19 is installed at the right end of the instrument 1, a signal conversion board 20 is installed at the inner side of the front cover 16, and a wiring board 21 is installed at the inner side of the rear; the right end of the pressure transmitter 2 is provided with a sensor seat 22, the inner side of the sensor seat 22 is provided with a sealing gasket 23, the left end of the sealing gasket 23 is provided with a pressure probe 24, the outer side of the sensor seat 22 is provided with a sealing ring 25, the left side of the sensor seat 22 is provided with a locking nut 26, the pressure probe 24 is locked on the sensor seat 22 through the locking nut 26, the pressure probe 24 and the sensor seat 22 are sealed through the sealing gasket 23, it is ensured that a measuring medium cannot enter the instrument 1 when in use, and the pressure transmitter 2 is screwed on the instrument 1 through threads. The pressure probe 24 in the pressure transmitter 2 is connected to the signal conversion board 20 inside the instrument 1 through a wire, and the signal conversion board 20 converts the pressure signal monitored by the pressure probe 24 into a standard electrical signal.
Example 2
Referring to fig. 1-5, in the embodiment of the present invention, an integrated magnetostrictive liquid level meter includes a meter 1, an electronic chamber 15 and a protection tube 12, a pressure transmitter 2 is installed at the left end of the meter 1, a curved channel joint 3 is installed at the left end of the pressure transmitter 2, an air duct 4 is installed at the bottom end of the curved channel joint 3, an inspection valve 5 is installed at the lower end of the air duct 4, a straight channel joint 6 is installed at the bottom end of the inspection valve 5, a flange 7 is installed at the bottom end of the straight channel joint 6, a measuring hole is opened on the flange 7, the inspection valve 5 is connected to the measuring hole on the mounting flange 7 through the straight channel joint 6, the protection tube 12 is welded below the flange 7, a probe rod 11 is installed inside the protection tube 12, the lower part of the protection tube 12 is plugged by a metal plug, so that the probe rod 11 of the liquid level meter is not in, the outer part of the protection tube 12 is sleeved with a hollow magnetic floating ball 8, the magnetic floating ball 8 can move up and down along the protection tube 12, and a floating ball gasket 9 is arranged below the magnetic floating ball 8, so that the magnetic floating ball 8 cannot collide with a metal component below the magnetic floating ball to generate electric sparks when moving down, and the danger of equipment damage or fire and explosion is avoided; electronic bin 15 is installed to instrument 1 bottom, and signal conversion module 14 is installed to electronic bin 15 inboard, and flange 7 passes through screw thread fixed connection electronic bin 15, and the electronic bin 15 top passes through screw thread fixed connection instrument 1.
The utility model discloses a theory of operation is:
the movement of the magnetic floating ball 8 in the integrated magnetostrictive liquid level meter generates magnetostriction to lead the corresponding electromagnetic changes of different positions of the waveguide wire 13 to be transmitted to the liquid level meter signal conversion module 14 for processing; the signal conversion module 14 is connected to a wiring board 21 in the instrument 1 through a lead, a pressure probe 24 in the pressure transmitter 2 is connected to a signal conversion plate 20 in the instrument 1 through a lead, the signal conversion plate 20 converts a pressure signal monitored by the pressure probe 24 into a standard electric signal, and the standard electric signal is transmitted to the signal conversion module 14 in the electronic cabin 15 through the wiring board 21; 1-3 temperature sensors 10 can be arranged at different positions in the probe rod 11, and the temperature sensors 10 are connected to a signal conversion module 14 in an electronic bin 15 through leads; the signal conversion module 14 in the electronic bin 14 receives the liquid level signal from the waveguide wire 13, the pressure signal from the signal conversion plate 20 and the temperature signal from the temperature sensor 10, converts the signals into communication signals, outputs the communication signals to the outside through the wiring board 21, and external equipment is connected to the wiring board 21 in the instrument 1 through the cable stuffing box 19 to collect the liquid level, temperature and pressure signals monitored by the integrated magnetostrictive liquid level meter, and performs processing, displaying and alarming.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The integrated magnetostrictive liquid level meter comprises an instrument (1), an electronic bin (15) and a protection tube (12), wherein the electronic bin (15) is installed at the bottom end of the instrument (1), the protection tube (12) is arranged below the electronic bin (15), and the integrated magnetostrictive liquid level meter is characterized in that a pressure transmitter (2) is installed at the left end of the instrument (1), a front shell cover (16) is installed at the front end of the instrument (1), a rear shell cover (18) is installed at the rear end of the instrument (1), a shell body (17) is installed in the middle of the instrument (1), a cable packing box (19) is installed at the right end of the instrument (1), a signal conversion plate (20) is installed on the inner side of the front shell cover (; the right end of the pressure transmitter (2) is provided with a sensor seat (22), the inner side of the sensor seat (22) is provided with a sealing gasket (23), the left end of the sealing gasket (23) is provided with a pressure probe (24), the outer side of the sensor seat (22) is provided with a sealing ring (25), and the left side of the sensor seat (22) is provided with a locking nut (26).
2. The integrated magnetostrictive liquid level meter according to claim 1, wherein a bent channel joint (3) is installed at the left end of the pressure transmitter (2), an air duct (4) is installed at the bottom end of the bent channel joint (3), an inspection valve (5) is installed at the lower end of the air duct (4), a straight channel joint (6) is installed at the bottom end of the inspection valve (5), a flange (7) is installed at the bottom end of the straight channel joint (6), a protection pipe (12) is installed at the bottom end of the middle part of the flange (7), a probe rod (11) is installed at the inner side of the protection pipe (12), a waveguide wire (13) is installed at the inner side of the probe rod (11), a temperature sensor (10) is installed at the middle part of the inner wall of the probe rod (11), a magnetic floating ball (8) is; and a signal conversion module (14) is arranged on the inner side of the electronic bin (15).
3. The integrated magnetostrictive liquid level gauge according to claim 2, characterized in that the pressure transmitter (2) is in threaded connection with the gauge (1), the flange (7) is in threaded connection with the electronics compartment (15), and the electronics compartment (15) is in threaded connection with the gauge (1).
4. The integrated magnetostrictive liquid level gauge according to claim 3, characterized in that the flange (7) is provided with a measuring hole, and the straight channel joint (6) connects the measuring hole with the service valve (5).
5. The integrated magnetostrictive liquid level gauge according to claim 4, characterized in that the bottom end of the protective tube (12) is plugged with a metal plug.
6. The integrated magnetostrictive liquid level gauge according to claim 4, wherein the magnetic floating ball (8) is hollow, and the magnetic floating ball (8) is slidably connected with the protection pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148339.3U CN212363369U (en) | 2020-06-19 | 2020-06-19 | Integrated magnetostrictive liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148339.3U CN212363369U (en) | 2020-06-19 | 2020-06-19 | Integrated magnetostrictive liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212363369U true CN212363369U (en) | 2021-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021148339.3U Expired - Fee Related CN212363369U (en) | 2020-06-19 | 2020-06-19 | Integrated magnetostrictive liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212363369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558402A (en) * | 2023-07-06 | 2023-08-08 | 广东润宇传感器股份有限公司 | Displacement sensor with built-in pressure transmitter and manufacturing method thereof |
-
2020
- 2020-06-19 CN CN202021148339.3U patent/CN212363369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558402A (en) * | 2023-07-06 | 2023-08-08 | 广东润宇传感器股份有限公司 | Displacement sensor with built-in pressure transmitter and manufacturing method thereof |
| CN116558402B (en) * | 2023-07-06 | 2023-09-26 | 广东润宇传感器股份有限公司 | Displacement sensor with built-in pressure transmitter and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 Termination date: 20210619 |