Liquid level meter for heat dissipation oil tank of transformer

Abstract

The utility model belongs to the technical field of transformer heat dissipation oil tanks, and particularly relates to a transformer heat dissipation oil tank liquid level meter which comprises a connector, a first pipe sleeve is fixedly arranged on the upper side of the connector, a glass window is formed in the upper side of the side face of the first pipe sleeve, a second pipe sleeve is arranged on the lower side of the connector, and a buoy is arranged on the inner side of the second pipe sleeve. Along with use of the device, impurities such as oil sludge can be attached to the inner side wall of the second pipe sleeve, the second pipe sleeve does not need to be detached for cleaning, only a rotary knob needs to be screwed, the rotary knob can drive a rotary disc to rotate, the rotary disc can drive a spiral scraping strip to rotate, and the spiral scraping strip can spirally scrape the inner side wall of the second pipe sleeve when rotating; impurities attached to the surface of the second pipe sleeve are pushed to the bottom of the second pipe sleeve under the action of spiral pushing, then the manual control valve is manually opened, a small amount of oil can flush out impurity precipitates from the discharging pipe head, and then the manual control valve is closed, so that the impurities in the second pipe sleeve can be conveniently and rapidly cleaned, convenience and rapidness are achieved, and the maintenance time is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of transformer radiating oil tank, and particularly relates to a transformer radiating oil tank liquid level meter. BACKGROUND

[0002] The transformer radiating oil tank liquid level meter is a device for monitoring the liquid level height of insulating oil (transformer oil) in a transformer oil tank, and its core function is to ensure that the oil level is in a safe range, thereby guaranteeing the heat dissipation efficiency and insulation performance of the transformer. The traditional liquid level meter (glass tube type, pointer type) indicates the scale and triggers an alarm signal through a float or a mechanical connecting rod; the modern intelligent type adopts a split design, the probe is adsorbed to the outer wall of the oil tank to avoid the risk of oil leakage, integrates a temperature and pressure sensor, and transmits data remotely through a CAN bus or wireless communication.

[0003] At present, the commonly used small and medium-sized transformer radiating oil tank adopts a tubular liquid level meter, which reflects the change of the oil level through a float lifting mechanism. When the oil level in the oil tank is normal, the oil enters the liquid level meter cavity through a connecting pipe, the float (usually a hollow ball or a cylinder) rises and falls with the oil surface, and drives the color mark in the window. The tubular liquid level meter is generally composed of a seamless steel pipe, a float indicating device, a thick-walled glass window, and a pressure relief valve. The window adopts an embedded design, the outer contour is consistent with the pipe diameter, bumping is prevented, and 360° visual observation is supported, and the top integrates a pressure relief valve (such as YSF series), which automatically opens to release pressure when the pressure in the oil tank exceeds 35 kPa, thereby protecting the safety of the oil tank structure.

[0004] At present, the float (hollow ball or cylinder) of the tubular liquid level meter moves up and down in the pipe, and impurities (metal chips, sludge, etc.) in the oil are easily attached to the inner wall of the pipe due to adsorption and volatilization accumulation and other reasons. As the impurities accumulate, the resistance to the float will greatly increase, which easily leads to deviation of the liquid level indication, and the oil level meter needs to be disassembled and cleaned regularly. However, disassembly and cleaning are relatively troublesome and time-consuming. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims to provide a transformer radiating oil tank liquid level meter, which solves the problem that the float (hollow ball or cylinder) of the current tubular liquid level meter moves up and down in the pipe, and impurities (metal chips, sludge, etc.) in the oil are easily attached to the inner wall of the pipe due to adsorption and volatilization accumulation and other reasons. As the impurities accumulate, the resistance to the float will greatly increase, which easily leads to deviation of the liquid level indication, and the oil level meter needs to be disassembled and cleaned regularly. However, disassembly and cleaning are relatively troublesome and time-consuming.

[0006] In order to achieve the above object, the utility model discloses the technical scheme that a transformer radiating oil tank liquid level meter adopts: a connecting head is fixedly provided with a sleeve one on the upside, a glass window is formed in the upper side of the side surface of sleeve one, a sleeve two is arranged on the downside of the connecting head, a float is arranged on the inside of sleeve two, a connecting rod is arranged on the upside of the float, a red and blue mark is arranged on the upper end of the connecting rod, a liquid inlet pipe head is communicated and arranged on the bottom of one side surface of sleeve two, a fixed block is arranged on the outside of the liquid inlet pipe head, the fixed block is fixedly connected with sleeve two, the two sides of the fixed block are symmetrically provided with mounting blocks, mounting holes are formed in the side surface of the mounting block, a knob is rotatably arranged on the lower end of sleeve two, the knob is fixedly provided with a rotating disc on the inside bottom of sleeve two, the rotating connection between the knob and sleeve two is sealed, a spiral scraping strip is fixedly arranged on the upside of the rotating disc, the spiral scraping strip is arranged closely to the inner wall of sleeve two, the spiral scraping strip does not contact the float, an observation window is formed in the middle of one side of sleeve two away from the liquid inlet pipe head, an external discharge pipe head is communicated and arranged on the bottom of one side of sleeve two away from the liquid inlet pipe head, and the output end of the external discharge pipe head is communicated with a manual control valve.

[0007] The utility model discloses the beneficial effect that with the use of the device, the inner wall of sleeve two can be attached with oil sludge and other impurities, without disassembling sleeve two for cleaning, only need to twist the knob, the knob will drive the rotating disc to rotate, the rotating disc will drive the spiral scraping strip to rotate, when the spiral scraping strip rotates, the spiral scraping strip will scrape the inner wall of sleeve two, the impurities attached to the surface of sleeve two will be pushed to the bottom of sleeve two under the action of spiral pushing, then open the manual control valve manually, a small amount of oil liquid will precipitate the impurities from the external discharge pipe head, then close the manual control valve, which is convenient for quickly cleaning the impurities in the inside of sleeve two, convenient and fast, and saves maintenance time.

[0008] In order to be used for disassembling the float;

[0009] As a further improvement of the above technical solution: the connecting head is threadedly connected with the sleeve two, and a sealing ring is arranged at the connecting position of the connecting head and the sleeve two.

[0010] The improvement has the beneficial effect that the float can be disassembled and cleaned.

[0011] In order to be used for pressure relief of the oil tank to the outside;

[0012] As a further improvement of the above technical solution: a pressure relief valve is arranged on the top of the sleeve one.

[0013] The improvement has the beneficial effect that the pressure relief valve is arranged to be used for pressure relief of the oil tank to the outside.

[0014] In order to be used for protecting the outside of the float;

[0015] As a further improvement of the above technical solution: the outer side of the buoy is sleeved with a protective sleeve.

[0016] The improvement has the beneficial effect that the buoy is protected, and only the protective sleeve needs to be replaced when it is replaced.

[0017] In order to be used for disassembling and replacing the buoy, the connecting rod and the red and blue marker separately;

[0018] As a further improvement of the above technical solution: the upper and lower ends of the connecting rod are respectively screwed with the buoy and the red and blue marker.

[0019] The improvement has the beneficial effect that the buoy, the connecting rod and the red and blue marker are disassembled and replaced separately.

[0020] In order to be used for shielding and protecting the top of the pressure relief valve;

[0021] As a further improvement of the above technical solution: the upper end of the pipe sleeve one is sleeved with a sleeve ring on the outer side, the upper side of the sleeve ring is symmetrically fixed with a vertical rod, the upper end of the vertical rod is fixed with a cover, and the cover covers the upper side of the pressure relief valve.

[0022] The improvement has the beneficial effect that the cover is arranged to shield and protect the top of the pressure relief valve, and some falling objects can be prevented from covering the upper side of the pressure relief valve.

[0023] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Structure diagram of the utility model Figure One ;

[0025] Figure 2 Structure diagram of the utility model Figure Two ;

[0026] Figure 3 Internal structure sectional view of the utility model

[0027] Figure 4 Structure connection diagram of the buoy in the utility model

[0028] In the figure: 1, connecting head; 2, pipe sleeve one; 3, glass window; 4, pipe sleeve two; 5, buoy; 51, protective sleeve; 6, connecting rod; 7, red and blue marker; 8, liquid inlet pipe head; 9, fixed block; 10, mounting block; 11, knob; 12, rotating disc; 13, spiral scraping strip; 14, outer discharge pipe head; 15, hand control valve; 16, observation window; 17, pressure relief valve; 18, sealing ring; 19, sleeve ring; 20, vertical rod; 21, cover. DETAILED DESCRIPTION

[0029] In order to make the skilled in the art better understand the technical solutions of the present application, the present application is described in detail below in combination with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0030] As Figure 1 — Figure 4: A transformer cooling oil tank liquid level gauge, including connector 1, the upper side of the connector 1 is fixedly provided with the sleeve one 2, the upper side of the side of the sleeve one 2 is provided with glass window 3, the lower side of the connector 1 is provided with sleeve two 4, the inner side of the sleeve two 4 is provided with float 5, the upper side of the float 5 is provided with connecting rod 6, the upper end of the connecting rod 6 is provided with red blue color mark 7, the bottom of the side of the sleeve two 4 is communicated with the liquid inlet pipe head 8, the outer side of the liquid inlet pipe head 8 is provided with fixed block 9, the fixed block 9 is fixedly connected with the sleeve two 4, the both sides of the fixed block 9 are symmetrically provided with mounting block 10, the side of the mounting block 10 is all through provided with mounting hole, the lower end of the sleeve two 4 is rotatably provided with knob 11, the knob 11 is fixedly provided with rotating disc 12 through the inside bottom of the sleeve two 4, the rotating connection place of the knob 11 and the sleeve two 4 is sealed, the upper side of the rotating disc 12 is fixedly provided with spiral scraping strip 13, the spiral scraping strip 13 is closely arranged to the inner side wall of the sleeve two 4, the spiral scraping strip 13 does not contact with the float 5, the middle of the side of the sleeve two 4 far from the liquid inlet pipe head 8 is provided with observation window 16, the bottom of the side of the sleeve two 4 far from the liquid inlet pipe head 8 is communicated with the outer discharge pipe head 14, the output end of the outer discharge pipe head 14 is communicated with hand control valve 15, with the use of the device, the inner side wall of the sleeve two 4 will be attached with oil sludge and other impurities, without disassembling the sleeve two 4 to clean, only need to twist the knob 11, the knob 11 will drive the rotating disc 12 to rotate, the rotating disc 12 will drive the spiral scraping strip 13 to rotate, the spiral scraping strip 13 will spiral scrape the inner side wall of the sleeve two 4 when rotating, so that the impurities attached to the surface of the sleeve two 4 are pushed to the bottom of the sleeve two 4 under the action of spiral pushing, then open the hand control valve 15 manually, a small amount of oil will precipitate from the outer discharge pipe head 14, then close the hand control valve 15, it is convenient to clean the impurities in the sleeve two 4, convenient and fast, save maintenance time, the connector 1 is threadedly connected with the sleeve two 4, the connecting place of the connector 1 and the sleeve two 4 is provided with sealing ring 18, for disassembling the float 5 to clean, the top of the sleeve one 2 is communicated with pressure relief valve 17, the pressure relief valve 17 is arranged to relieve pressure outside the oil tank, the outer side of the float 5 is sleeved with protective sleeve 51, for protecting the outer side of the float 5, when replacing, only need to replace the protective sleeve 51, the upper and lower ends of the connecting rod 6 are threadedly connected with the float 5 and red blue color mark 7 respectively, for disassembling and separately replacing the float 5, connecting rod 6 and red blue color mark 7, the outer side of the upper end of the sleeve one 2 is sleeved with sleeve ring 19, the upper side of the sleeve ring 19 is symmetrically fixedly provided with vertical rod 20, the upper end of the vertical rod 20 is fixedly provided with cover 21, the cover 21 covers the upper side of the pressure relief valve 17, the cover 21 is arranged to shield the top of the pressure relief valve 17, can avoid some falling objects covering the upper side of the pressure relief valve 17.

[0031] The working principle and use process of the utility model:

[0032] In use, the fixed block 9 is fixed at the oil outlet position of the oil tank side cover through the mounting block 10, the liquid inlet pipe head 8 is inserted into the inner side of the oil outlet, the connection between the liquid inlet pipe head 8 and the oil outlet can be sealed by an inner rubber ring and a sealing ring, the oil in the oil tank will enter the inner side of the pipe sleeve two 4 through the oil outlet, the float 5 will float on the oil surface, and the red and blue marks 7 will be pushed up through the connecting rod 6, the color of the red and blue marks 7 can be observed from the glass window 3, the red and blue marks 7 are red on top and blue on bottom, when the red color fills the glass window 3, it represents that the oil in the oil tank is less, and the liquid needs to be supplemented, with the use of the device, the inner wall of the pipe sleeve two 4 will be attached with oil sludge and impurities, without disassembling the pipe sleeve two 4 for cleaning, only the knob 11 needs to be screwed, the knob 11 will drive the rotating disc 12 to rotate, the rotating disc 12 will drive the spiral scraping strip 13 to rotate, the spiral scraping strip 13 will scrape the inner wall of the pipe sleeve two 4 when rotating, the impurities attached to the surface of the pipe sleeve two 4 will be pushed to the bottom of the pipe sleeve two 4 under the action of the spiral pushing, then the manual control valve 15 is manually opened, a small amount of oil will push the impurities outwards from the outer discharge pipe head 14, and then the manual control valve 15 is closed, so that the impurities in the pipe sleeve two 4 can be quickly cleaned, which is convenient, fast and saves maintenance time, in addition, the connecting head 1 is threadedly connected with the pipe sleeve two 4, a sealing ring 18 is arranged at the connection between the connecting head 1 and the pipe sleeve two 4, the float 5 is disassembled and cleaned, the sealing ring 18 is arranged to increase the sealing property, in addition, the top of the pipe sleeve one 2 is communicatively provided with a pressure relief valve 17, the pressure relief valve 17 is arranged to relieve the pressure of the oil tank to the outside, in addition, the float 5 is sleeved with a protective sleeve 51 on the outer side, the outer side of the float 5 is protected, when replacement is needed, only the protective sleeve 51 needs to be replaced, in addition, the upper and lower ends of the connecting rod 6 are threadedly connected with the float 5 and the red and blue marks 7 respectively, the float 5, the connecting rod 6 and the red and blue marks 7 can be disassembled and replaced separately, in addition, a cover 21 is arranged to shield and protect the top of the pressure relief valve 17, and some falling objects can be prevented from covering the upper side of the pressure relief valve 17.

[0033] It should be noted that in this text, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0034] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A transformer oil conservator liquid level gauge characterised in that: The utility model provides a kind of connecting head (1), the upper side of the connecting head (1) is fixedly provided with pipe sleeve one (2), glass window (3) is opened on the side upper side of the pipe sleeve one (2), the lower side of the connecting head (1) is provided with pipe sleeve two (4), the inner side of the pipe sleeve two (4) is provided with buoy (5), the upper side of the buoy (5) is provided with connecting rod (6), the upper end of the connecting rod (6) is provided with red blue color mark (7), the side bottom of the pipe sleeve two (4) is communicated and provided with liquid inlet pipe head (8), the outer side of the liquid inlet pipe head (8) is provided with fixed block (9), the fixed block (9) is fixedly connected with pipe sleeve two (4), the both sides of the fixed block (9) are symmetrically provided with mounting block (10), mounting hole is opened in the side of the mounting block (10), the lower end of the pipe sleeve two (4) is rotatably provided with knob (11), the knob (11) is fixedly provided with rotating disc (12) in the inner side bottom of the pipe sleeve two (4) and is penetrated, the rotating connection place of the knob (11) and the pipe sleeve two (4) is sealed, the upper side of the rotating disc (12) is fixedly provided with helical scraping strip (13), the helical scraping strip (13) is arranged close to the inner side wall of the pipe sleeve two (4), the helical scraping strip (13) does not contact buoy (5), the side middle part of the pipe sleeve two (4) away from liquid inlet pipe head (8) is provided with observation window (16), the side bottom of the pipe sleeve two (4) away from liquid inlet pipe head (8) is communicated and provided with outer discharge pipe head (14), the output end of the outer discharge pipe head (14) is communicated and provided with hand control valve (15).

2. A transformer oil conservator liquid level gauge as claimed in claim 1, wherein: The connecting head (1) is screwed with the pipe sleeve two (4), and a sealing ring (18) is arranged at the connecting position of the connecting head (1) and the pipe sleeve two (4).

3. The transformer oil conservator liquid level gauge according to claim 1, wherein: A pressure relief valve (17) is arranged at the top of the pipe sleeve one (2).

4. The transformer oil conservator liquid level gauge of claim 1, wherein: A protective sleeve (51) is arranged on the outer side of the buoy (5).

5. The transformer oil conservator liquid level gauge according to claim 1, wherein: The upper and lower ends of the connecting rod (6) are screwed with the buoy (5) and the red blue color mark (7) respectively.

6. A transformer tank oil level gauge according to claim 3, characterised in that: A sleeve ring (19) is arranged on the outer side of the upper end of the pipe sleeve one (2), and a vertical rod (20) is symmetrically fixedly arranged on the upper side of the sleeve ring (19), a cover (21) is fixedly arranged on the upper end of the vertical rod (20), and the cover (21) covers the upper side of the pressure relief valve (17).

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