Oil conservator magnetic turning plate liquid level measuring device

Abstract

The utility model relates to an oil conservator magnetic turning plate liquid level measuring device which comprises a magnet installed in an oil conservator and an induction display structure installed outside the oil conservator and right opposite to the magnet, and the magnet is installed on one side of the free end of a corrugated core body through a magnet base. The induction display structure comprises a shell with a hollow inner cavity, a mounting groove is formed in the middle of the front face, back to the oil conservator, of the shell in a concave mode, a mounting base with the n-shaped section is arranged in the mounting groove, and multiple sets of opposite positioning through holes are formed in the vertical faces of the two sides of the mounting base at equal intervals in the vertical direction. A magnetic turning plate capable of being movably matched with the magnet to turn is connected between each set of opposite positioning through holes through a rotating shaft, magnetic poles on the two faces of the magnetic turning plate are different, the two faces of the magnetic turning plate are coated with coatings of different colors, inserting grooves are vertically formed in the positions, close to the opening, of the vertical faces of the two sides of the mounting groove, and transparent glass covers are inserted into the inserting grooves. According to the utility model, the magnet can move to drive the magnetic turning plate to rotate, and the liquid level of oil in the oil conservator can be intuitively known from a low position and a far position through color conversion of the magnetic turning plate.

Description

Technical Field

[0001] This utility model relates to the field of liquid level measurement technology, specifically to a magnetic flip-plate liquid level measuring device for an oil storage tank. Background Technology

[0002] A metal corrugated transformer oil conservator is a device used to store variable amounts of transformer oil. Its purpose is...

[0003] This ensures that the transformer oil tank is always full, unaffected by oil temperature. Metal corrugated transformer oil storage.

[0004] The tank contains a metal bellows, one end of which is fixed to the end plate of the oil conservator, while the other end is free. When the external pressure changes, the metal bellows can freely expand and contract to compensate for the volume of the oil conservator. That is, when the transformer oil temperature rises, the volume of the oil increases, and it enters the oil conservator from the transformer tank. At this time, the oil pressure is greater than the air pressure inside the metal bellows, so the metal bellows inside the tank is compressed, and the increased oil volume is stored in the oil conservator. When the transformer oil temperature drops, the oil volume decreases, and the oil pressure is less than the air pressure inside the bellows, so the metal bellows extends, and its free end sends the oil back to the tank.

[0005] To monitor this process in a timely manner, a display device, currently called an oil level gauge, is installed on the oil tank to show the position of the free end of the bellows. This gauge is a pointer type, consisting of a viewing window containing a pointer with graduations on its side, and an oil level transmission mechanism. The transmission mechanism moves the pointer along with the oil level to indicate its position. Because transformers are typically located at high elevations, the current pointer-type level gauges require personnel to approach and observe the tank to determine if the oil level is normal. This necessitates frequent climbing to higher positions, increasing safety hazards and causing significant inconvenience. Therefore, a magnetic float level measuring device was developed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a magnetic flip-plate liquid level measuring device for oil storage tanks. The device allows direct observation of the color change of the magnetic flip-plate on the ground to understand the liquid level inside the oil storage tank. Compared with pointer-type liquid level gauges, it is more convenient to observe and reduces safety hazards.

[0007] This utility model is achieved through the following technical solution:

[0008] The utility model provides a kind of oil tank magnetic reed liquid level measuring device, including installation in oil tank inside magnet and installation in oil tank outside and with magnet opposite inductive display structure, magnet is installed in the free end side of corrugated core body by magnet seat;Inductive display structure includes vertically installed in with magnet opposite oil tank side wall and with hollow inner chamber shell, the front middle part of shell opposite oil tank is recessed and formed with vertically arranged and open installation slot, installation slot is provided with the mounting seat of section Π, the both sides vertical surface of mounting seat is vertically equidistant and is provided with a plurality of opposite positioning through hole, each group of opposite positioning through hole is connected with the magnetic reed that can be moved with magnet and overturning by rotating shaft, the magnetic pole of two surfaces of magnetic reed is different and two surfaces are coated with different color coating, the both sides vertical surface of installation slot is vertically formed with insertion slot near open and is inserted with transparent glass cover by insertion slot.

[0009] Further, the inner chamber of shell is provided with installation cylinder parallel to installation slot on the side of installation slot, and a Hall induction strip for sensing the position signal of the magnet is vertically arranged in the installation cylinder.

[0010] The Hall induction strip can be magnetically coupled with the magnet to sense the magnetic signal of the magnet. The signal is transmitted through the wire to a signal receiving device for conversion into a liquid level signal for automatic monitoring.

[0011] Further, the distance between the upper and lower adjacent rotating shafts is 1 cm.

[0012] The distance between the upper and lower adjacent rotating shafts is set to 1 cm to ensure that the adjacent two magnetic reeds maintain a certain acting force and remain stable relative to each other. Without external force, the stability of the displayed liquid level can be ensured.

[0013] Further, the upper and lower ends of the shell are open and are respectively provided with an upper cap and a lower cap, and the gland is installed on the lower cap.

[0014] The upper and lower ends of the shell are open to facilitate the installation of the Hall induction strip in the inner chamber. The upper cap and the lower cap are used to package the two ends, and the magnetic reed is packaged in the shell to avoid external interference and ensure the stability of the overturning.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a magnet moves through the corrugated core free end, can utilize the magnetic force action between magnet and magnetic flap, drive magnetic flap rotation to convert the coating color of the whole magnetic flap, and the height length of coating color can be used to judge how much the liquid level in oil storage tank is, because only need to pay attention to whether the liquid level in oil storage tank is in the lowest end and the highest end two abnormal positions of liquid level measuring device, and the other positions between the two are normal positions, so need not consider the accuracy of measuring device, the magnetic flap is encapsulated in the shell, and the anti -vibration ability is outstanding, and the influence of vibration to measurement is little, can not use close observation just can be in the distance low place, obtain how much liquid level through the observation magnetic flap color, convenient to use, reduce the security hidden danger.

[0017] Meanwhile, the Hall induction strip matched with the magnet is encapsulated in the shell, the displacement monitoring is adopted according to the Hall principle, the signal receiving equipment can be connected through the wire, the conversion of displacement signal and liquid level signal can be realized, automatic monitoring can be realized, and the alarm device can be connected according to the use demand, the alarm signal can be automatically triggered when exceeding the threshold value, so that the sudden situation can be handled in time, and the convenience of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model.

[0019] Figure 2 It is the right view of Figure 1 .

[0020] Figure 3 It is the structure schematic diagram of the induction display structure in the utility model.

[0021] Figure 4 It is the cross section schematic diagram of Figure 3 .

[0022] The shown in the drawing:

[0023] 1, oil storage tank, 2, induction display structure, 3, corrugated core, 4, magnet seat, 5, magnet, 6, shell, 7, upper cap, 8, lower cap, 9, magnetic flap, 10, gland, 11, Hall induction strip, 12, mounting seat, 13, rotating shaft, 14, slot, 15, transparent glass cover, 16, mounting groove. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of the scheme, the scheme is described below through specific embodiments.

[0025] For example, Figure 1As shown, a kind of oil conservator magnetic flap liquid level measuring device, including the magnet 5 installed in oil conservator 1 and the inductive display structure 2 installed opposite magnet 5 outside oil conservator 1, magnet 5 is installed in the free end side of corrugated core 3 by magnet base 4;Inductive display structure 2 includes vertically installed in the side wall of oil conservator 1 opposite magnet 5 and has hollow inner chamber shell 6, the upper and lower ends of shell 6 are open respectively and are equipped with upper cap 7 and lower cap 8 respectively, the front middle part of shell 6 opposite oil conservator 1 is recessed and forms vertically arranged and open installation slot 16, installation slot 16 is provided with the mounting seat 12 of Π-shaped section, the both sides vertical surface of mounting seat 12 is vertically equidistantly provided with a plurality of opposite positioning through holes, each group of opposite positioning through holes is connected with the magnetic flap 9 that can be moved with magnet 5 by rotating shaft 13 and can be flipped, the interval of adjacent two rotating shafts 13 is 1cm.

[0026] The two faces of magnetic flap 9 are different and coated with different color coatings, the both sides vertical surface of installation slot 16 is vertically formed with slot 14 close to the open place and is inserted with transparent glass cover 15 by slot 14.

[0027] The inner chamber of shell 6 is provided with installation cylinder parallel to installation slot 16 on one side of installation slot 16, installation cylinder is vertically provided with Hall induction strip 11 that can induct position signal of magnet 5, the wire of Hall induction strip 11 is led out shell 6 by granular head 10 on the bottom lower cap of shell 6.

[0028] One end of corrugated core 3 in oil conservator 1 is fixed on the end plate of oil conservator 1, and the other end is free end, when external pressure changes, the free end of corrugated core 3 moves up and down freely and expands and contracts, to compensate the volume of oil conservator 1, that is, when the temperature of transformer oil rises, the volume of the oil increases, enters oil conservator 1 from transformer oil tank, at this time, the pressure of the oil is greater than the air pressure of corrugated core 3, the corrugated core 3 in the tank is compressed, and the increment of the oil is stored in the oil conservator;When the temperature of transformer oil drops, the volume of the oil decreases, and the oil pressure is less than the air pressure in corrugated core 3, and the corrugated core 3 is elongated, and the free end of the corrugated core 3 sends the oil into oil conservator 1.

[0029] The free end of corrugated core 3 is installed with magnet 5 through magnet base 4, and moves up and down with corrugated core 3, in the process of magnet 5 moving up and down, the magnetic force of magnet 5 interacts with each magnetic flap 9 (it can be same pole repulsion or different pole attraction), each magnetic flap 9 rotates correspondingly with magnet 5 moving up and down, the two faces of magnetic flap 9 are different colors, initially, the whole formed by each magnetic flap 9 is the same color on both sides, such as Figure 3As shown, in the embodiment, the two surfaces of the magnetic flap 9 are provided with red coating and white coating, respectively, the length of the red coating is used to indicate the liquid level of the oil, and the height of the coating color can be used to determine the liquid level in the oil tank 1, the scale line and scale value can be marked on the shell 6 to understand the liquid level value, because only the liquid level in the oil tank 1 needs to be concerned about whether it is at the lowest end and the highest end of the liquid level measuring device, and the other positions between the two are normal positions, so the accuracy of the measurement does not need to be considered, during the up and down movement of the free end of the corrugated core 3, the magnetic force can be used to make each magnetic flap 9 flip, when the red coating surface of the magnetic flap 9 reaches the highest point, it indicates that the oil quantity in the oil tank 1 is relatively large, and needs to be discharged in time to prevent the oil tank 1 from being damaged due to excessive pressure, when the red coating surface of the magnetic flap 9 flips to all white coating surfaces, it indicates that the oil quantity in the oil tank 1 is lost too much, and needs to be supplemented in time, and when the red coating surface of the magnetic flap 9 is at other positions between the highest point and the lowest point, it indicates that the oil quantity in the oil tank 1 is in a normal range, and the oil in the tank does not need to be treated.

[0030] The utility model discloses the two surfaces of magnetic flap 9 are provided with different color coatings, and the magnet 5 is used to flip the magnetic flap 9, the liquid level height displayed on the inductive display structure 2 on the lateral wall of the oil tank 1 can be directly observed from the low place, the Hall induction strip 11 that can cooperate with the magnet 5 is packaged in the shell 6, adopts the Hall principle displacement monitoring, can pass through the wire connection signal receiving equipment, realizes the conversion of displacement signal and liquid level signal, can realize automatic monitoring, and according to the use demand connection alarm device, can automatically trigger the alarm signal when exceeding the threshold value, is convenient for handling the emergent situation in time, can realize the measurement of the liquid level in the oil tank 1 with the magnetic flap 9 in the mounting groove 16 on the shell 6, can realize the mutual cooperation of automatic monitoring and manual monitoring, improves the convenience of use, helps to understand and observe whether the liquid level in the oil tank 1 is in the normal value.

[0031] Of course, the above description is not limited to the above examples, the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here, the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, the ordinary skilled in the art should understand that the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A magnetic float liquid level measuring device for an oil storage tank, characterized in that: The device includes a magnet installed inside the oil tank and a sensor display structure installed outside the oil tank and facing the magnet. The magnet is installed on the free end of the corrugated core via a magnet base. The sensor display structure includes a shell with a hollow cavity, vertically mounted on the side wall of the oil tank facing the magnet. A vertically recessed and open mounting groove is formed in the center of the front of the shell facing away from the oil tank. A mounting seat with a Π-shaped cross-section is provided in the mounting groove. Multiple sets of facing positioning through holes are opened vertically at equal intervals on both sides of the mounting seat. Each set of facing positioning through holes is connected by a rotating shaft to a magnetic flip plate that can move and rotate with the magnet. The magnetic flip plate has different magnetic poles on both sides and is coated with different colored coatings. A slot is formed vertically on both sides of the mounting groove near the open end, and a transparent glass cover is inserted into the slot.

2. The magnetic float liquid level measuring device for oil storage tanks according to claim 1, characterized in that: Inside the housing, a mounting cylinder parallel to the mounting groove is provided on one side of the mounting groove. A Hall effect sensor strip capable of sensing the position signal of a magnet is vertically arranged inside the mounting cylinder. The wire of the Hall effect sensor strip passes through the gland at the bottom of the housing and exits the housing.

3. The magnetic float liquid level measuring device for oil storage tanks according to claim 1, characterized in that: The distance between two adjacent rotating axes is 1 cm.

4. The magnetic float liquid level measuring device for oil storage tanks according to claim 1, characterized in that: The outer casing has openings at both the top and bottom, and each opening is fitted with an upper cap and a lower cap, with the gland head mounted on the lower cap.

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