CN218916485U

CN218916485U - Magnetostrictive magnetic flap liquid level transmitter for process gas compressor

Info

Publication number: CN218916485U
Application number: CN202123153177.XU
Authority: CN
Inventors: 杨震环; 梁超
Original assignee: Haomi Power Equipment Co ltd
Current assignee: Haomi Power Equipment Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-04-25
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a magnetic induced turns over board level gauge field especially relates to a process gas compressor is with magnetostriction magnetic turns over board level transmitter, the intelligent control device comprises a barrel, be provided with the floater that is used for showing liquid level height in the barrel, be provided with flexible probe rod on the outer wall of barrel, be provided with the gauge outfit on the flexible probe rod, be provided with the shielding layer on the outer wall of flexible probe rod, be provided with first communicating pipe and second communicating pipe on the outer wall of barrel, first communicating pipe and second communicating pipe all with the barrel inner chamber communicates with each other and is connected, first communicating pipe and second communicating pipe all communicate with each other with the external world and are connected, and this application has the shielding external magnetic field interference, accurate measurement waits to measure the effect of liquid level value in the container.

Description

Magnetostrictive magnetic flap liquid level transmitter for process gas compressor

Technical Field

The application relates to the field of magnetic flap level meters, in particular to a magnetostrictive magnetic flap level transmitter for a process gas compressor.

Background

The magnetic flap level gauge is developed according to the buoyancy principle and the magnetic coupling effect, can be directly used for observing the liquid level height of media in various containers, and is widely used for measuring and controlling the liquid level in the production processes of electric power, petroleum, chemical industry, metallurgy, environmental protection, ships, buildings, food and the like.

The medium compressed by the compressor often has the characteristics of inflammability, explosiveness, corrosion and the like, the liquid level of the gas-liquid separator for the compressor is displayed and controlled by using a magnetic flap liquid level transmitter, and the precision of the common magnetic flap liquid level transmitter is low (10 mm) and cannot meet the requirements; at this time, a magnetic flap level meter with a magnetostrictive probe rod transmitter (the precision can reach 0.01% F.S.) is needed.

With respect to the related art, the inventor considers that the magnetostrictive transducer is easily affected by interference such as an accelerator on a separator, a magnetic field of a motor on a unit, a magnetic field of a frequency converter and the like, and the fluctuation of readings is inaccurate, so that the control of the liquid level of the gas-liquid separator is affected, and the operation of the unit is affected.

Disclosure of Invention

In order to enable the magnetostrictive transducer to measure an accurate liquid level value, the application provides the magnetostrictive magnetic flap liquid level transducer for the process gas compressor.

The application provides a magnetostriction magnetic flap level transmitter for process gas compressor adopts following technical scheme:

the utility model provides a magnetostriction magnetic flap liquid level transmitter for process gas compressor, includes the barrel, be provided with the floater that is used for showing liquid level height in the barrel, be provided with flexible probe on the outer wall of barrel, be provided with the gauge outfit on the flexible probe, be provided with the shielding layer on the outer wall of flexible probe, be provided with first communicating pipe and second communicating pipe on the outer wall of barrel, first communicating pipe and second communicating pipe all with the barrel inner chamber communicates with each other and is connected, first communicating pipe and second communicating pipe all communicate with each other with the external world and are connected.

Through adopting above-mentioned technical scheme, the gauge outfit is connected with external power electricity, circuit element produces the circuit pulse, this circuit pulse is along flexible probe downward transmission, and produce an annular magnetic field, the floater is the floater that contains magnet, when the magnetic field that the floater produced meets with the circuit magnetic field, produce a return pulse, the time difference of return pulse and current pulse converts pulse signal into, thereby calculate the actual position of floater, the measured liquid level, the setting of shielding layer shields external magnetic field, prevent the influence of external magnetic field to magnetostriction transmitter measurement, make magnetostriction transmitter measuring result accurate.

Optionally, a plurality of protective sleeves are arranged on one side of the shielding layer, which faces away from the telescopic probe rod.

By adopting the technical scheme, the telescopic probe rod is a magnetostrictive tube, is a thin-wall capillary tube made of soft magnetic materials, and the protective sleeves at the two ends play a role in protecting the telescopic probe rod.

Optionally, a protective layer is fixed on one side of the shielding layer away from the telescopic probe rod, and the protective layer is located between the shielding layer and the protective sleeve.

By adopting the technical scheme, the shielding layer is a shielding copper foil layer, the shielding copper foil layer has the defects of easy wetting, easy oxidation and the like, the protective layer is coated on the outer wall of the shielding layer, the protective layer comprises 0.5-6% of polishing solution, 10-35% of aluminum powder, 1-10% of zinc powder, 0-3% of binder, 0-2.5% of dispersing agent, 5-20% of urotropine, 10-20% of corrosion inhibitor and 30-60% of catalyst, and the shielding layer has the advantages of protecting the shielding layer, reducing the oxidation of the shielding layer and reducing the wetting of the shielding layer.

Optionally, a scale layer is arranged on the side wall of the magnetic turning plate.

Through adopting above-mentioned technical scheme, the staff of being convenient for acquires the liquid level height in the equipment inner chamber that awaits measuring of setting up of scale layer.

Optionally, one end of the first communicating pipe and the second communicating pipe, which is away from the cylinder, is provided with a locking piece, and the locking piece is used for fixing the first communicating pipe and the second communicating pipe.

Through adopting above-mentioned technical scheme, the staff passes through the locking piece with first communicating pipe and second communicating pipe is fixed on waiting to measure equipment lateral wall, and first communicating pipe and second communicating pipe all communicate with each other with the inner chamber of equipment that awaits measuring for the liquid level in the equipment that awaits measuring is the same with the liquid level in the barrel, and the height of the intraductal liquid level of equipment that awaits measuring is measured to the accuracy.

Optionally, the locking piece is including fixing first communicating pipe or second communicating pipe deviates from the mounting disc of barrel one end, the through-hole has been seted up in the running through on the mounting disc lateral wall, be provided with the connecting cylinder on the lateral wall of mounting disc, the connecting cylinder with first communicating pipe or second communicating pipe inner chamber communicate with each other and are connected, fixedly connected with joint ring on the outer wall of connecting cylinder, the joint ring with the mounting disc bolt fastening.

Through adopting above-mentioned technical scheme, the connecting cylinder passes through joint ring and bolt fastening on the mounting disc, and the connecting cylinder passes through bolt fastening on the outer wall of waiting to detect equipment, and the connecting cylinder communicates with each other with the inner chamber of waiting to detect equipment and is connected, and the setting of mounting disc and joint ring makes the fixed more reliable and more stable of magnetic flap changer.

Optionally, a mounting groove is formed in the side wall of the mounting plate, and a sealing ring is fixed in the mounting groove.

Through adopting above-mentioned technical scheme, the sealing washer is the rubber circle, and the sealing effect of connecting tube and mounting disc junction has been promoted in the setting of sealing washer.

Optionally, a water outlet pipe is arranged on the side wall of the cylinder, and a water stop valve is arranged on the side wall of the water outlet pipe.

Through adopting above-mentioned technical scheme, after measuring, the liquid in the barrel needs to be discharged, and the setting of water stop valve is convenient for staff's discharge liquid in the barrel.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first communicating pipe and the second communicating pipe are communicated with the inner cavity of the equipment to be detected, so that the liquid level in the cylinder body is equal to the liquid level in the equipment to be detected, and the height of the liquid level is displayed in real time by overturning the magnetic turning plate, so that the height of the liquid level in the equipment to be detected is obvious.

2. The side wall of the magnetic turning plate is provided with a scale layer, so that staff can conveniently read the liquid level in the inner cavity of the equipment to be detected.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a liquid level transmitter in this embodiment.

Fig. 2 is an exploded view of the locking member in this embodiment.

Fig. 3 is a view showing the telescopic probe rod portion in the present embodiment.

Fig. 4 is a sectional view of the telescopic probe in this embodiment, for showing the layer structure of the telescopic probe.

Reference numerals: 1. a cylinder; 11. a floating ball; 12. a magnetic flap; 13. a telescopic probe rod; 14. a gauge head; 131. a shielding layer; 15. a first communication pipe; 16. a second communicating pipe; 132. a protective sleeve; 133. a protective layer; 121. a scale layer; 2. a locking member; 21. a mounting plate; 211. a flow hole; 22. a connecting cylinder; 23. a clamping ring; 24. a retainer ring; 212. a mounting groove; 213. a seal ring; 17. a water outlet pipe; 18. a water stop valve; 19. a clamping plate; 191. and (5) a support.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a magnetostrictive magnetic flap liquid level transmitter for a process gas compressor.

Referring to fig. 1, a magnetostrictive magnetic flap level transmitter for a process gas compressor comprises a barrel 1, wherein a floating ball 11 is arranged in an inner cavity of the barrel 1, a floater with a magnet is arranged in the floating ball 11 in the process, a gap exists between the floating ball 11 and the inner wall of the barrel 1, when the liquid level in the barrel 1 rises, the floating ball 11 rises along with the rising of the liquid level, clamping plates 19 are fixed at two ends of the barrel 1 through screws, a magnetic flap 12 is fixed between the two clamping plates 19 through screws, and the color of a magnet on the magnetic flap 12 can be changed according to the position overturn of the floating ball 11 in the barrel 1 to display the liquid level.

Referring to fig. 1, a scale layer 121 is integrally fixed on a side wall of the magnetic flap 12, and a worker obtains the height of a magnet on the magnetic flap 12 through the scale layer 121, so as to know the liquid level height in the cylinder 1. The side wall of the cylinder body 1 is fixedly welded with a first communicating pipe 15 and a second communicating pipe 16, the first communicating pipe 15 and the second communicating pipe 16 are all connected with the inner cavity of the cylinder body 1, one ends of the first communicating pipe 15 and the second communicating pipe 16, which deviate from the cylinder body 1, are all provided with locking pieces 2, the locking pieces 2 are used for fixing the first communicating pipe 15 and the second communicating pipe 16 on the outer walls of other equipment, the first communicating pipe 15 and the second communicating pipe 16 are used for communicating equipment to be measured with the inner cavity of the cylinder body 1, and the liquid level in the equipment to be detected is the same as the liquid level in the cylinder body 1 through the arrangement of the first communicating pipe 15 and the second communicating pipe 16.

Referring to fig. 1 and 2, the locking member 2 comprises a mounting plate 21 welded and fixed at one end of the first communication pipe 15 or the second communication pipe 16, a connecting cylinder 22 fixed on the mounting plate 21, and a clamping ring 23 detachably fixed on the mounting plate 21, a through hole 211 is formed in the side wall of the mounting plate 21, which is far away from the cylinder 1, the through hole 211 is communicated with the inner cavity of the cylinder 1, a retainer ring 24 is welded and fixed at one end of the connecting cylinder 22, which is far away from the cylinder 1, the retainer ring 24 and the mounting plate 21 are fixed through bolts, when a liquid level transmitter is fixed on equipment to be detected, the retainer ring 24 is fixed in contact with the equipment, the clamping ring 23 limits the sliding movement of the connecting cylinder 22, so that the fixing of the connecting cylinder 22 is more stable, a mounting groove 212 is formed in one side of the mounting plate 21, which is far away from the cylinder 1, a sealing ring 213 is fixed in the mounting groove 212, one side of the sealing ring 213 is abutted on the side wall of the connecting cylinder 22, the sealing ring 213 is made of rubber material, and the connecting part of the connecting cylinder 22 and the mounting plate 21 is sealed, and liquid is prevented from flowing out from the connecting part.

Referring to fig. 1 and 3, a support 191 is welded and fixed on the side wall of the clamping plate 19, a telescopic probe rod 13 is integrally fixed on the support 191, the telescopic probe rod 13 is a magnetostrictive probe rod 13 in the application, the telescopic probe rod 13 is a thin-wall capillary tube made of soft magnetic materials, two ends of the telescopic probe rod 13 are fixed with protective sleeves 132, the protective sleeves 132 are made of rubber materials, the telescopic probe rod 13 is protected, a gauge outfit 14 is fixed on the telescopic probe rod 13 through nuts, the gauge outfit 14 is electrically connected with an external power supply, when the liquid level transmitter measures, a circuit element generates circuit pulses, the pulses are transmitted downwards along the telescopic probe rod 13 and generate an annular magnetic field, and when the magnetic field generated by the magnetic floating ball 11 meets, a return pulse transmitter converts the time difference between the return pulses and the current pulses into pulse signals, so that the actual position of the floating ball 11 is calculated, and the liquid level is measured.

Referring to fig. 4, a shielding layer 131 is adhered to the outer wall of the telescopic probe rod 13, in this application, the shielding layer 131 is a shielding copper foil, because there are heaters on a compressor unit, a motor and other external electrical equipment capable of generating an interference magnetic field, a pulse annular magnetic field generated by a waveguide tube is easily affected by the interference magnetic field, a returned pulse signal is a random discontinuous signal, the liquid level output by a transmitter is continuously beating, thus the control of affecting the liquid level of a gas-liquid separator causes the operation of the unit to be affected, and the shielding layer 131 is used for shielding the external interference magnetic field, so that the output reading of the liquid level transmitter is stable.

Referring to fig. 4, a protective layer 133 is coated on the outer wall of the shielding layer 131, wherein the protective layer 133 is 0.5-6% of polishing solution, 10-35% of aluminum powder, 1-10% of zinc powder, 0-3% of binder, 0-2.5% of dispersing agent, 5-20% of urotropine, 10-20% of corrosion inhibitor and 30-60% of catalyst, and has the functions of protecting the shielding layer 131, reducing oxidation of the shielding layer 131, reducing wetting of the shielding layer 131 and protecting the shielding layer 131.

Referring to fig. 1, a water outlet pipe 17 is fixed on the side wall of the cylinder 1, a water stop valve 18 is fixed on the water outlet pipe 17, after the measurement is completed, a worker opens the water stop valve 18 to discharge the liquid in the cylinder 1, and the water stop valve 18 is in a closed state in the measurement process.

The implementation principle of the magnetostrictive magnetic flap liquid level transmitter for the process gas compressor is as follows: when the liquid level value of the liquid level in the container needs to be measured, the first communicating pipe 15 and the second communicating pipe 16 are fixed on the container to be measured, part of liquid in the container enters the cylinder 1, the liquid level in the cylinder 1 is flush with the liquid level in the container, the floating ball 11 is suspended on the liquid level in the cylinder 1, the magnetic field generated by the floating ball 11 meets the magnetic field generated by the circuit element to generate a return pulse, the transmitter converts the time difference between the return pulse and the current pulse into a pulse signal, so that the actual position of the floating ball 11 is calculated, and the liquid level of the container is measured.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a magnetostriction magnetic flap level transmitter for process gas compressor which characterized in that: including barrel (1), be provided with in barrel (1) and be used for showing floater (11) of liquid level height, be provided with on barrel (1) magnetism and turn over board (12), be provided with flexible probe (13) on the outer wall of barrel (1), be provided with gauge outfit (14) on flexible probe (13), be provided with shielding layer (131) on the outer wall of flexible probe (13), be provided with first communicating pipe (15) and second communicating pipe (16) on the outer wall of barrel (1), first communicating pipe (15) and second communicating pipe (16) all with barrel (1) inner chamber communicates with each other and is connected, first communicating pipe (15) and second communicating pipe (16) all communicate with each other with the external world and are connected.

2. The magnetostrictive magnetic flap level transmitter for a process gas compressor according to claim 1, wherein: one side of the shielding layer (131) deviating from the telescopic probe rod (13) is provided with a plurality of protective sleeves (132).

3. The magnetostrictive magnetic flap level transmitter for a process gas compressor according to claim 2, wherein: a protective layer (133) is fixed on one side of the shielding layer (131) away from the telescopic probe rod (13), and the protective layer (133) is located between the shielding layer (131) and the protective sleeve (132).

4. The magnetostrictive magnetic flap level transmitter for a process gas compressor according to claim 1, wherein: the side wall of the magnetic turning plate (12) is provided with a scale layer (121).

5. The magnetostrictive magnetic flap level transmitter for a process gas compressor according to claim 1, wherein: the one end that first communicating pipe (15) and second communicating pipe (16) deviate from barrel (1) all is provided with locking piece (2), locking piece (2) are used for fixing first communicating pipe (15) and second communicating pipe (16).

6. The magnetostrictive magnetic flap level transmitter for a process gas compressor as set forth in claim 5, wherein: the locking piece (2) is including fixing first communicating pipe (15) or second communicating pipe (16) deviate from mounting disc (21) of barrel (1) one end, through-hole (211) have been seted up in the running through on mounting disc (21) lateral wall, be provided with connecting cylinder (22) on the lateral wall of mounting disc (21), connecting cylinder (22) with first communicating pipe (15) or second communicating pipe (16) inner chamber communicate with each other and are connected, fixedly connected with joint ring (23) on the outer wall of connecting cylinder (22), joint ring (23) with mounting disc (21) bolt fastening.

7. The magnetostrictive magnetic flap level transmitter for a process gas compressor as set forth in claim 6, wherein: the side wall of the mounting plate (21) is provided with a mounting groove (212), and a sealing ring (213) is fixed in the mounting groove (212).

8. The magnetostrictive magnetic flap level transmitter for a process gas compressor according to claim 1, wherein: the water outlet pipe (17) is arranged on the side wall of the cylinder body (1), and the water stop valve (18) is arranged on the side wall of the water outlet pipe (17).