Oil storage tank liquid level measuring device

Abstract

The utility model discloses an oil storage tank liquid level measuring device, which relates to the technical field of oil monitoring, and comprises an oil storage tank body, the top of the oil storage tank body is fixedly connected with an oil inlet pipe, the top of the oil inlet pipe is in threaded connection with a sealing door, and magnetic coupling non-contact liquid level measuring components are arranged inside and on the front side of the oil storage tank body. An oil tank inner wall cleaning assembly is arranged in the oil storage tank body. By means of the oil tank inner wall cleaning assembly, impurities, oil dirt and the like attached to the inner wall of the oil tank body can be effectively removed, erosion of the dirt to the tank wall is reduced, and therefore the service life of the oil tank is prolonged, and meanwhile normal use of the oil tank and accuracy of liquid level measurement are guaranteed. Physical contact and friction between parts possibly occurring in a traditional contact type measurement mode are avoided, the measurement precision is improved, and meanwhile the leakage risk caused by untight mechanical sealing is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil liquid monitoring technical field, concretely relates to a kind of oil storage tank liquid level measuring device. BACKGROUND

[0002] Combustion oil refers to fuel oil used for heating, combustion and power generation, which is usually a liquid fuel refined from petroleum, and its main uses include heating, industrial production, power generation and transportation. Combustion oil needs to be stored in an oil storage tank. In order to better monitor the oil level in the oil storage tank, an oil level measuring device needs to be installed in the oil storage tank. Commonly used is a buoyancy type liquid level measuring device, which uses a float to rise and fall with the liquid level and converts the displacement signal into liquid level height information using mechanical or electronic devices. The existing technology has the following problems:

[0003] The existing oil storage tank liquid level measuring device does not have a non-contact liquid level measuring component. When using traditional mechanical transmission and sealed liquid level measuring devices, the reliability of mechanical seals is difficult to guarantee for a long time. At the same time, the traditional liquid level measuring device uses a float connected to a measuring pointer and other components through a mechanical linkage or a rope. During long-term use, these mechanical connection components will wear out due to friction with other structures, resulting in a decrease in measurement accuracy or even failure. The existing device does not have an oil tank inner wall cleaning component. Over time, a large amount of dirt will accumulate on the inner wall of the oil storage tank, further causing deviation in the liquid level measurement data, making it difficult for the operator to accurately determine the liquid storage capacity of the oil storage tank. At the same time, uncleaned dirt can accelerate the corrosion of the inner wall of the oil storage tank, reducing the service life of the oil tank. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of oil storage tank liquid level measuring device to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An oil storage tank liquid level measuring device includes an oil storage tank body, an oil inlet pipe fixedly connected to the top of the oil storage tank body, a sealing door threadedly connected to the top of the oil inlet pipe, a blowdown pipe fixedly connected to the bottom of the left side wall of the oil storage tank body, an electromagnetic valve fixedly connected to the outer wall of the blowdown pipe, a magnetic coupling non-contact liquid level measuring component arranged inside and on the front side of the oil storage tank body, and an oil tank inner wall cleaning component arranged inside the oil storage tank body.

[0007] The further improvement in the utility model technical scheme lies in that the magnetic coupling non-contact liquid level measuring assembly comprises a cross stand, the cross stand is fixedly connected to the middle part of the inner wall of the upper side and the lower side of the oil storage tank body, a liquid level float is slidably connected to the outer wall of the cross stand, float rods are fixedly connected to the outer wall of the liquid level float on the front side and the rear side, a balance block is fixedly connected to the rear end of the float rod on the rear side, and a permanent magnet one with the same mass as the magnetic coupling non-contact liquid level measuring assembly is fixedly connected to the front end of the float rod on the front side.

[0008] The further improvement in the utility model technical scheme lies in that the front side wall of the oil storage tank body is fixedly connected with side plates on the upper side and the lower side, opposite surfaces of the two side plates are fixedly connected with two slide rods which are symmetrical left and right, outer walls of the two slide rods are slidably connected with slide blocks, opposite surfaces of the two slide blocks are fixedly connected with a permanent magnet two which is magnetically attracted to the permanent magnet one, and the outer walls of the permanent magnet one, the balance block and the permanent magnet two are not in contact with the oil storage tank body to reduce friction.

[0009] The further improvement in the utility model technical scheme lies in that opposite surfaces of the two side plates are fixedly connected with alarm devices, opposite surfaces of the two alarm devices are fixedly connected with electrode blocks which are electrically connected to the alarm devices, a scale groove is formed in the left side of the front side wall of the oil storage tank body, a scale line is arranged in the scale groove, and the front side of the permanent magnet two is fixedly connected with a liquid level pointer.

[0010] The further improvement in the utility model technical scheme lies in that the oil tank inner wall cleaning assembly comprises two reciprocating screw rods which are rotatably connected to the inner walls on the upper side and the lower side of the oil storage tank body and are arranged left and right symmetrically, the top rear side of the oil storage tank body is fixedly connected with two electric machines which are symmetrical left and right, and the output ends of the two electric machines are respectively fixedly connected with the end portions of the two reciprocating screw rods.

[0011] The further improvement in the utility model technical scheme lies in that the inner walls on the upper side and the lower side of the oil storage tank body are fixedly connected with two slide rods two which are symmetrical left and right on the front side, the outer wall of the reciprocating screw rod is threadedly connected with a cleaning brush which is slidably connected to the outer wall of the slide rod two, and the outer wall of the cleaning brush is attached to the inner wall of the oil storage tank body.

[0012] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0013] 1. The utility model provides a kind of oil storage tank liquid level measuring device, by the oil tank inner wall cleaning component being set, can effectively remove the impurities, oil dirt etc. attached on the inner wall of oil storage tank body, keep the cleanliness of the inner wall of oil storage tank body, reduce the erosion of dirt to tank wall, to prolong the service life of oil storage tank, reduce the frequency and cost of equipment update, while ensuring the normal use of oil storage tank and the accuracy of liquid level measurement.

[0014] 2, the utility model provides a kind of oil storage tank liquid level measuring device, by the magnetic coupling non-contact liquid level measuring component being set, the interaction of permanent magnet one and permanent magnet two is force transmission by magnetic field, avoid the physical contact and friction between components that can appear in traditional contact type measurement mode, so that liquid level float can follow liquid level up and down movement more quickly, more accurately, improve measurement accuracy, simultaneously, magnetic coupling non-contact liquid level measuring component because it is not dependent on mechanical seal, greatly improve the safety of oil storage tank, avoid the leakage risk caused by mechanical seal not tight. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the internal structure schematic diagram of the utility model;

[0017] Figure 3 It is the magnetic coupling non-contact liquid level measuring component structure schematic diagram of the utility model;

[0018] Figure 4 It is another magnetic coupling non-contact liquid level measuring component structure schematic diagram of the utility model;

[0019] Figure 5 It is the oil tank inner wall cleaning component structure schematic diagram of the utility model.

[0020] In the drawing: 10, oil storage tank body;11, oil inlet pipe;12, sealing door;13, blowdown pipe;14, electromagnetic valve;2, magnetic coupling non-contact liquid level measuring component;20, cross stand;21, liquid level float;22, float rod;23, balance block;24, permanent magnet one;25, side plate;26, sliding block;27, permanent magnet two;28, liquid level pointer;29, scale groove;290, alarm;291, slide rod;292, scale line;293, electrode block;3, oil tank inner wall cleaning component;30, reciprocating screw;31, motor;32, slide rod two;33, cleaning brush. DETAILED DESCRIPTION

[0021] To make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following further describes the utility model in conjunction with specific implementation manner:

[0022] As Figure 1 , Figure 2 shown, the utility model provides a kind of oil storage tank liquid level measuring device, including oil storage tank body 10, the top of oil storage tank body 10 is fixedly connected with oil inlet pipe 11, the top of oil inlet pipe 11 is threadedly connected with sealing door 12, the bottom of the left side wall of oil storage tank body 10 is fixedly connected with blowdown pipe 13, the outer wall of blowdown pipe 13 is fixedly connected with electromagnetic valve 14, the inside and front side of oil storage tank body 10 are provided with magnetic coupling non-contact liquid level measuring assembly 2, the inside of oil storage tank body 10 is provided with oil tank inner wall cleaning assembly 3.

[0023] Oil storage tank body 10 as the basic part of the whole device, provide space for liquid storage, on the top of oil storage tank body 10, by welding or other suitable fixed mode fixedly connected with oil inlet pipe 11, oil inlet pipe 11 is used to inject liquid into oil storage tank, the top of oil inlet pipe 11 is provided with thread, sealing door 12 is connected by the thread, when not needing to inject liquid, sealing door 12 can be tightened, prevent liquid leakage and impurity to enter, the bottom of the left side wall of oil storage tank body 10 is fixedly connected with blowdown pipe 13, for discharging the impurity or residual liquid in oil storage tank, the outer wall of blowdown pipe 13 is fixedly connected with electromagnetic valve 14, by controlling the switch of electromagnetic valve 14, can realize the control to blowdown process, for example, when needing to blowdown, open electromagnetic valve 14, make liquid and impurity discharge through blowdown pipe 13, and when normal storage, close electromagnetic valve 14 to guarantee the sealing property of oil storage tank.

[0024] As Figure 3 , Figure 4 shown, magnetic coupling non-contact liquid level measuring assembly 2 includes cross stand 20, cross stand 20 is fixedly connected in the middle part of the inner wall of upper and lower two sides of oil storage tank body 10, the outer wall of cross stand 20 is slidably connected with liquid level float 21, the outer wall of liquid level float 21 is fixedly connected with float pole 22 on the front and back of two sides, the rear end of rear float pole 22 is fixedly connected with balance block 23, the front end of front float pole 22 is fixedly connected with permanent magnet one 24 with the same mass as magnetic coupling non-contact liquid level measuring assembly 2.

[0025] As Figure 3 , Figure 4 shown, the upper and lower two sides of the front side wall of oil storage tank body 10 are fixedly connected with side plate 25, the opposite surface of the upper and lower two side plates 25 is fixedly connected with two left and right symmetrical slide rods 291, the outer wall of left and right two slide rods 291 is slidably connected with slide block 26, the opposite surface of left and right two slide blocks 26 is fixedly connected with permanent magnet two 27 with magnetic attraction to permanent magnet one 24, the outer wall of permanent magnet one 24, balance block 23, permanent magnet two 27 does not contact with oil storage tank body 10 to reduce friction.

[0026] As Figure 3 ,Figure 4 As shown, an alarm 290 is fixedly connected to the opposite surfaces of the upper and lower side plates 25, and an electrode block 293 electrically connected to the opposite surfaces of the upper and lower alarms 290 is fixedly connected to them. A scale groove 29 is opened on the left side of the front side wall of the oil storage tank body 10, and a scale line 292 is set inside the scale groove 29. A liquid level pointer 28 is fixedly connected to the front side of the permanent magnet 27.

[0027] When liquid is injected into the oil storage tank body 10, the liquid level changes, and the magnetically coupled non-contact liquid level measurement component 2 installed inside the oil storage tank body 10 starts to work. The liquid level float 21 slides up and down on the crossbar 20 due to the buoyancy of the liquid. The balance block 23 and permanent magnet 24 move with the up and down movement of the liquid level float 21. Simultaneously, the two float rods 22 provide additional buoyancy. Due to the magnetic relationship between permanent magnet 24 and permanent magnet 27... Due to the attraction between the two, and with permanent magnet 27 fixed to the two sliders 26 on the left and right sides, and sliders 26 slidably connected to the sliding rods 291 on the opposite sides of the upper and lower side plates 25, when permanent magnet 24 moves up and down, it will drive permanent magnet 27 to move synchronously on the sliding rods 291. The liquid level pointer 28 fixedly connected to the front side of permanent magnet 27 will move up and down in the scale groove 29 on the left side of the front side wall of the oil tank body 10. The scale groove 29 is provided with scale lines 292. The liquid level pointer 28 moves up and down in the scale groove. The liquid level can be read directly from the position within 29. When the liquid level reaches the predetermined minimum or maximum limit position, the alarm 290 and the electrode block 293 fixedly connected to the opposite surfaces of the upper and lower side plates 25 will function. For example, when the liquid level is too high or too low, the slider 26 drives the permanent magnet 27 to the corresponding position and contact the electrode block 293, triggering the alarm 290 and issuing an alarm signal to remind the operator to take appropriate measures. Through the magnetic coupling non-contact liquid level measuring component 2, the interaction between the permanent magnet 24 and the permanent magnet 27 is transmitted through the magnetic field, avoiding the physical contact and friction between components that may occur in the traditional contact measurement method. This allows the liquid level float 21 to move up and down with the liquid level more quickly and accurately, improving the measurement accuracy. At the same time, the magnetic coupling non-contact liquid level measuring component does not rely on mechanical seals, which greatly improves the safety of the oil storage tank and avoids the risk of leakage caused by poor mechanical seals.

[0028] like Figure 5 As shown, the oil tank inner wall cleaning component 3 includes two reciprocating screws 30. The two reciprocating screws 30 are rotatably connected to the rear side of the upper and lower inner walls of the oil tank body 10 and are arranged symmetrically from left to right. Two left-right symmetrical motors 31 are fixedly connected to the rear side of the top of the oil tank body 10. The output ends of the left and right motors 31 penetrate into the interior of the oil tank body 10 and are fixedly connected to the ends of the left and right reciprocating screws 30 respectively.

[0029] As Figure 5 shown, the upper and lower two sides of the oil tank body 10 are fixedly connected with two symmetrically left and right sliding rods two 32, the outer wall of the reciprocating screw rod 30 is threadedly connected with the cleaning brush 33 which is slidably connected with the outer wall of the sliding rod two 32, and the outer wall of the cleaning brush 33 is attached to the inner wall of the oil tank body 10.

[0030] When the inner wall of the oil tank needs to be cleaned, the motor 31 is started, the motor 31 drives the reciprocating screw rod 30 to rotate, the outer wall of the reciprocating screw rod 30 is threadedly connected with the cleaning brush 33, and the cleaning brush 33 is also slidably connected with the sliding rod two 32 fixedly connected with the upper and lower two sides of the oil tank body 10. Thus, under the rotation of the reciprocating screw rod 30, the cleaning brush 33 will reciprocate up and down along the sliding rod two 32, and since the outer wall of the cleaning brush 33 is attached to the inner wall of the oil tank body 10, the inner wall of the oil tank body 10 can be cleaned during the up and down movement of the cleaning brush 33. By setting the oil tank inner wall cleaning assembly 3, the impurities, oil stains and the like attached to the inner wall of the oil tank body 10 can be effectively removed, the cleanliness of the inner wall of the oil tank body 10 is maintained, the erosion of dirt to the tank wall is reduced, thereby prolonging the service life of the oil tank and reducing the frequency and cost of equipment updating, while ensuring the normal use of the oil tank and the accuracy of liquid level measurement.

[0031] It should be particularly noted that the alarm 290 can be a buzzer type alarm, such as model AD16-22SM, which is prior art and will not be described in detail here; when the inner wall of the oil tank body 10 does not need to be cleaned, the cleaning brush 33 is at the uppermost part inside the oil tank body 10, avoiding affecting the magnetic coupling non-contact liquid level measurement assembly 2; at the same time, the oil tank body 10 is made of non-metallic material, such as glass steel material, to avoid affecting the magnetic coupling non-contact liquid level measurement assembly 2.

[0032] The working principle of the oil tank liquid level measurement device will be described in detail below.

[0033] As Figures 1-5As shown, when liquid is injected into the oil tank body 10, the liquid level will change, and the magnetic coupling non-contact liquid level measuring assembly 2 arranged inside the oil tank body 10 starts to work. The liquid level float 21 slides up and down on the cross stand 20 due to the buoyancy of the liquid. The balance block 23 and the permanent magnet 24 move up and down with the liquid level float 21. The two float rods 22 also provide a part of the buoyancy. Since there is a magnetic attraction between the permanent magnet 1 24 and the permanent magnet 2 27, and the permanent magnet 2 27 is fixed on the two sliders 26, and the sliders 26 are slidingly connected to the slide rods 291 on the opposite sides of the upper and lower side plates 25, when the permanent magnet 1 24 moves up and down, it will drive the permanent magnet 2 27 to move synchronously on the slide rods 291. The liquid level pointer 28 fixedly connected to the front side of the permanent magnet 2 27 moves up and down on the left side of the scale groove 29 on the front side wall of the oil tank body 10. The scale groove 29 is provided with scale lines 292. The liquid level height can be directly read by the position of the liquid level pointer 28 in the scale groove 29. When the liquid level reaches the predetermined minimum or maximum limit position, the alarm 290 fixedly connected to the opposite sides of the upper and lower side plates 25 and the electrode block 293 connected thereto will work. For example, when the liquid level is too high or too low, the slider 26 drives the permanent magnet 2 27 to the corresponding position and contacts the electrode block 293, triggering the alarm 290 to send an alarm signal and reminding the operator to take corresponding measures. Through the magnetic coupling non-contact liquid level measuring assembly 2, the interaction between the permanent magnet 1 24 and the permanent magnet 2 27 is transmitted by the magnetic field. The physical contact and friction between the components in the traditional contact type measuring method are avoided, so that the liquid level float 21 can follow the liquid level up and down more quickly and accurately, and the measurement accuracy is improved. At the same time, the magnetic coupling non-contact liquid level measuring assembly does not depend on mechanical sealing, which greatly improves the safety of the oil tank and avoids the risk of leakage caused by poor mechanical sealing.

[0034] When it is necessary to clean the inner wall of the oil tank, the motor 31 is started, the motor 31 drives the reciprocating screw rod 30 to rotate, and the cleaning brush 33 is threadedly connected to the outer wall of the reciprocating screw rod 30. At the same time, the cleaning brush 33 is also slidingly connected to the slide rod two 32 fixedly connected to the front side of the inner wall of the upper and lower sides of the oil tank body 10. In this way, under the rotation of the reciprocating screw rod 30, the cleaning brush 33 will reciprocate up and down along the slide rod two 32. Since the outer wall of the cleaning brush 33 is in close contact with the inner wall of the oil tank body 10, the inner wall of the oil tank body 10 can be cleaned during the up and down movement of the cleaning brush 33. Through the oil tank inner wall cleaning assembly 3, the attached impurities and oil stains on the inner wall of the oil tank body 10 can be effectively removed, the cleanliness of the inner wall of the oil tank body 10 is maintained, the erosion of dirt to the tank wall is reduced, the service life of the oil tank is prolonged, the frequency and cost of equipment updating are reduced, and the normal use of the oil tank and the accuracy of the liquid level measurement are ensured.

[0035] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, and this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model's thought spirit, all are within the utility model's protection scope.

Claims

1. A tank level measuring device comprising a tank body (10), characterized in that: The top of the oil tank body (10) is fixedly connected with an oil inlet pipe (11), the top of the oil inlet pipe (11) is threadedly connected with a sealing door (12), the bottom of the left side wall of the oil tank body (10) is fixedly connected with a blowdown pipe (13), the outer wall of the blowdown pipe (13) is fixedly connected with a solenoid valve (14), the inside and the front side of the oil tank body (10) are provided with a magnetic coupling non-contact liquid level measuring assembly (2), and the inside of the oil tank body (10) is provided with an oil tank inner wall cleaning assembly (3).

2. A device for measuring the level of liquid in a tank as claimed in claim 1, wherein: The magnetic coupling non-contact liquid level measuring assembly (2) comprises a cross stand (20), the cross stand (20) is fixedly connected to the middle of the upper and lower inner walls of the oil tank body (10), the outer wall of the cross stand (20) is slidably connected with a liquid level float (21), the outer wall of the liquid level float (21) is fixedly connected with a float rod (22) on the front side and the rear side, the rear end of the rear float rod (22) is fixedly connected with a balance block (23), and the front end of the front float rod (22) is fixedly connected with a permanent magnet (24) with the same mass as the magnetic coupling non-contact liquid level measuring assembly (2).

3. A tank gauge as defined in claim 2, wherein: The front side wall of the oil tank body (10) is fixedly connected with side plates (25) on the upper side and the lower side, the opposite surfaces of the two side plates (25) are fixedly connected with two left-right symmetrical slide rods (291), the outer walls of the two slide rods (291) are slidably connected with slide blocks (26), the opposite surfaces of the two slide blocks (26) are fixedly connected with permanent magnets (27) that are magnetically attracted to the permanent magnet (24), and the outer walls of the permanent magnet (24), the balance block (23) and the permanent magnet (27) are not in contact with the oil tank body (10) to reduce friction.

4. A liquid level measuring device for a storage tank as claimed in claim 3, wherein: The opposite surfaces of the two side plates (25) are fixedly connected with alarms (290), the opposite surfaces of the two alarms (290) are fixedly connected with electrode blocks (293) that are electrically connected thereto, a scale groove (29) is formed in the left side of the front side wall of the oil tank body (10), the inside of the scale groove (29) is provided with scale lines (292), and the front side of the permanent magnet (27) is fixedly connected with a liquid level pointer (28).

5. A liquid level measuring device for a storage tank as claimed in claim 4, wherein: The oil tank inner wall cleaning assembly (3) comprises two reciprocating wire rods (30), the two reciprocating wire rods (30) are rotatably connected to the rear sides of the upper and lower inner walls of the oil tank body (10) and are arranged in left-right symmetry, two left-right symmetrical motors (31) are fixedly connected to the top rear side of the oil tank body (10), and the output ends of the two motors (31) penetrate into the inside of the oil tank body (10) and are fixedly connected with the end portions of the two reciprocating wire rods (30), respectively.

6. A liquid level measuring device for a storage tank as claimed in claim 5, characterized in that: The upper and lower inner walls of the oil tank body (10) are fixedly connected with two left-right symmetrical slide rods (32) on the front side, the outer wall of the reciprocating wire rod (30) is threadedly connected with a cleaning brush (33) that is slidably connected with the outer wall of the slide rod (32), and the outer wall of the cleaning brush (33) is attached to the inner wall of the oil tank body (10).

Images