Explosion-proof oil storage tank liquid level measuring device

Abstract

The utility model discloses an explosion-proof oil storage tank liquid level measuring device, which belongs to the technical field of oil storage and comprises a base plate integrated with an oil storage tank, a detection hole is arranged on the base plate, a lower ring seat is mounted in the detection hole, an upper ring seat is fixed on the upper surface of the lower ring seat, and a detector body is fixed on the top of the upper ring seat. The detection end of the detector body faces the lower portion of the base plate, a driving motor is fixed to the outer wall of the upper ring base, a transmission mechanism is installed on the inner side wall of the upper ring base, a separation cylinder is rotationally installed at the bottom of the lower ring base, vertical strip holes are formed in the outer wall of the separation cylinder, and one side of the upper ring base is connected with an external power source through a power line. According to the measuring device, liquid level measurement can be stably and accurately carried out, a fixed space can be separated by the separating cylinder, interference factors can be eliminated by the eliminating structure during rotation, and measurement is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-explosion petroleum storage tank liquid level measuring device, belong to petroleum storage technical field. BACKGROUND

[0002] In the storage and transportation of petroleum, professional anti-explosion storage tank needs to be used, petroleum is flammable and explosive substance, and there is great security risk in storage and transportation process.Anti-explosion liquid level measuring device can accurately measure liquid level under the premise that it does not generate electric spark, high temperature and other dangerous factors that can cause explosion, so as to avoid safety accidents caused by oil spill due to too high liquid level or oil pump idle due to too low liquid level.

[0003] And in the existing liquid level measuring device commonly used ultrasonic side-looking device and radar liquid level measuring device, these devices can obtain accurate and stable measurement data, and can transmit measurement data to external control system, but in actual use, the surface of petroleum in storage tank will produce liquid level fluctuation when being shaken or stirred, and the more serious influence on measurement is steam group mist and foam dust in storage tank, these influencing factors will continuously interfere with liquid level measurement, thus the utility model is proposed. SUMMARY

[0004] The utility model aims at solving the above problems and provides an anti-explosion petroleum storage tank liquid level measuring device, which can solve the problem of measurement interference caused by steam or fly ash in the tank body in the prior art.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme, an anti-explosion petroleum storage tank liquid level measuring device, including the base plate integrated with petroleum storage tank, detection hole is located in the uppermost part of the deepest part of petroleum storage tank, lower ring seat is installed in detection hole, the upper surface of lower ring seat is fixed with upper ring seat, lower ring seat is used for fixed assembly integration with base plate for a long time, only upper ring seat is disassembled when disassembling is needed, the top of upper ring seat is fixed with detector body, the detection end of detector body faces the lower part of base plate, driving motor is fixed on the outer wall of upper ring seat, transmission mechanism is installed on the inner side wall of upper ring seat, driving motor drives separation cylinder to rotate through transmission mechanism, separation cylinder is rotatably installed on the bottom of lower ring seat, vertical slot is formed on the outer wall of separation cylinder, vertical slot is used to allow external petroleum to flow in, so as to balance liquid level, one side of upper ring seat is connected with external power supply through power line.

[0006] Preferably, in order to facilitate the position of supporting the transmission rod, the transmission mechanism comprises a limiting lug, the inner wall of the upper ring seat and the lower ring seat is fixed with the limiting lug, the limiting lug is provided with a limiting hole, and the transmission rod is rotationally connected in the limiting hole.

[0007] Preferably, in order to facilitate the transmission of power, the top of the transmission rod is fixed with a bevel gear a, the output shaft of the driving motor extends through the upper ring seat to above the bevel gear a, one end of the output shaft of the driving motor is fixed with a bevel gear b, and the bevel gear a and the bevel gear b are engaged.

[0008] Preferably, in order to drive the internal partition cylinder to rotate by the external driving motor, the bottom end of the transmission rod is fixed with a transmission wheel, the upper portion of the partition cylinder is wrapped on the bottom outer wall of the lower ring seat, the inner wall of the partition cylinder is fixed with a transmission ring corresponding to the transmission wheel, and the inner wall of the transmission ring is in contact with the transmission wheel.

[0009] Preferably, in order to facilitate the dispersion of droplets or mist by the balance rod, the inner wall of the vertical strip hole is rotationally connected with a cleaning structure, the cleaning structure comprises a balance rod located in the partition cylinder, a rotating part rotationally connected between the inner walls of the vertical strip hole, and the bottom end of the balance rod is fixed with the rotating part.

[0010] Preferably, in order to maintain the vertical state of the cleaning structure, a weight rod is arranged outside the partition cylinder, the top end of the weight rod is fixedly connected with the rotating part, and the mass of the weight rod is above the balance rod.

[0011] Preferably, in order to avoid excessive agitation of petroleum, an inclined surface is arranged at the corner of the outer wall of the weight rod.

[0012] The beneficial effects of the utility model are:

[0013] 1. Avoiding measurement interference: the explosion-proof petroleum storage tank liquid level measuring device provided by the utility model can effectively overcome the problem that the measuring device in the prior art is easily interfered by steam or droplets in the tank body.

[0014] 2. Unique structure design to cope with complex environment: under the complex environment of the petroleum storage tank, after the driving motor is started, the partition cylinder is rotated through a series of transmission, and the cleaning structure is operated. The weight rod is horizontally arranged by gravity, the balance rod agitates steam and hits droplets, the interference on the detection end of the detector body is eliminated, and the liquid level measurement accuracy is ensured.

[0015] 3. Avoid potential risks of the weight rod: when the weight rod is below the liquid level, the inclined surface at the corner of the outer wall of the weight rod can make the weight rod close to the outer wall of the separation cylinder, avoid excessive stirring of the oil, prevent the risk of causing oil quality change, generating static electricity and the like, and maintain the stability and safety of the oil.

[0016] 4. Synergistic cooperation to ensure accurate measurement: compared with the traditional liquid level measuring device, the utility model successfully solves the problem of steam and splash interference measurement through the synergistic cooperation of each structure, provides reliable guarantee for accurate measurement of the liquid level of the oil storage tank, and has very high practical value and wide application prospect in the field of petrochemical industry. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model.

[0018] Figure 2 It is the transmission mechanism structure schematic diagram of the utility model.

[0019] Figure 3 It is the cleaning structure schematic diagram of the utility model.

[0020] Figure 4 It is the inclined surface structure schematic diagram of the utility model.

[0021] In the drawing: 1, base plate; 101, detection hole; 2, lower ring seat; 3, upper ring seat; 4, detector body; 5, driving motor; 501, transmission wheel; 6, transmission mechanism; 601, limit ear plate; 602, transmission rod; 603, bevel gear a; 604, bevel gear b; 7, separation cylinder; 701, vertical bar hole; 702, transmission ring; 8, cleaning structure; 801, balance bar; 802, rotating part; 803, weight rod; 804, inclined surface. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4As shown in the figure, an explosion-proof type petroleum storage tank liquid level measuring device, including and petroleum storage tank integrated base plate 1, base plate 1 is provided with detection hole 101, detection hole 101 is located in the deepest part of the petroleum storage tank directly above, detection hole 101 is installed in the lower ring seat 2, the upper surface of the lower ring seat 2 is fixed with the upper ring seat 3, the lower ring seat 2 is used for and the base plate 1 long time fixed assembly integrated, when need to disassemble only disassemble the upper ring seat 3, the top of the upper ring seat 3 is fixed with the detector body 4, the detection end of the detector body 4 faces the lower part of the base plate 1, the outer wall of the upper ring seat 3 is fixed with the drive motor 5, the inner side wall of the upper ring seat 3 is installed with transmission mechanism 6, drive motor 5 drives the separation cylinder 7 to rotate through transmission mechanism 6, the bottom of the lower ring seat 2 is rotatably installed with the separation cylinder 7, the outer wall of the separation cylinder 7 is provided with vertical hole 701, vertical hole 701 is used to allow the external petroleum to flow into, so as to balance the liquid level, one side of the upper ring seat 3 is connected with the external power supply through the power line, the explosion-proof safety valve is arranged on the side wall of the upper ring seat 3, which can relieve pressure when the pressure is abnormal, and the drive motor 5 is preferably symmetrically arranged, and mechanical seal is arranged between the output shaft of the drive motor 5 and the upper ring seat 3, the bottom end of the separation cylinder 7 is close to the bottom of the petroleum storage tank.

[0024] As shown in the figure, Figure 2 Transmission mechanism 6 includes limiting lug plate 601, limiting lug plate 601 is fixed on the inner wall of upper ring seat 3 and lower ring seat 2, limiting hole is arranged on limiting lug plate 601, transmission rod 602 is rotatably connected in limiting hole, so as to conveniently support the position of transmission rod 602, the top of transmission rod 602 is fixed with bevel gear a 603, the output shaft of drive motor 5 extends to the upper part of bevel gear a 603 through upper ring seat 3, one end of the output shaft of drive motor 5 is fixed with bevel gear b 604, bevel gear a 603 and bevel gear b 604 are engaged, so as to conveniently transmit power, the bottom end of transmission rod 602 is fixed with transmission wheel 501, the upper part of separation cylinder 7 is wrapped on the bottom outer wall of lower ring seat 2, and transmission ring 702 is fixed on the inner wall of separation cylinder 7 corresponding to transmission wheel 501, the inner wall of transmission ring 702 and transmission wheel 501 are in contact, so as to drive the internal separation cylinder 7 to rotate through the external drive motor 5.

[0025] As shown in the figure, Figure 4As shown, the inner wall of the vertical hole 701 is rotatably clamped with a cleaning structure 8, the cleaning structure 8 includes a balance bar 801 located in the inside of the separation cylinder 7, a rotating part 802 rotatably clamped between the inner wall of the vertical hole 701, the bottom end of the balance bar 801 is fixed with the rotating part 802, so that the balance bar 801 can be used to disperse droplets or mist, the outside of the separation cylinder 7 is provided with a weight rod 803, the top end of the weight rod 803 is fixedly connected with the rotating part 802, the mass of the weight rod 803 is above the balance bar 801, so that the vertical state of the cleaning structure 8 can be maintained, and the outer wall of the weight rod 803 is provided with an inclined surface 804 at the corner, so that the oil can be avoided to be excessively stirred.

[0026] The utility model discloses in using, the separation cylinder 7 rotation can drive the rotation of cleaning structure 8, and because the weight rod 803 is heavy and is located outside, can gradually lie horizontally under the condition of no external obstruction, thereby stirring the steam or hitting the droplet through the balance bar 801 of lying horizontally, and then guarantee the accuracy of measurement, and the weight rod 803 under the liquid level is pressed on the outer wall of the separation cylinder 7 by the oil liquid under the influence of the inclined surface 804, thereby avoiding the excessive stirring of oil.

[0027] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A liquid level measuring device for an explosion-proof oil storage tank, characterized in that: The system includes a base plate (1) integrated with an oil storage tank. A detection hole (101) is provided on the base plate (1). A lower ring seat (2) is installed in the detection hole (101). An upper ring seat (3) is fixed on the upper surface of the lower ring seat (2). A detector body (4) is fixed on the top of the upper ring seat (3). The detection end of the detector body (4) faces downwards from the base plate (1). A drive motor (5) is fixed on the outer wall of the upper ring seat (3). A transmission mechanism (6) is installed on the inner side wall of the upper ring seat (3). A separator cylinder (7) is rotatably installed at the bottom of the lower ring seat (2). A vertical strip hole (701) is provided on the outer wall of the separator cylinder (7). One side of the upper ring seat (3) is connected to an external power source via a power cord.

2. The explosion-proof oil storage tank level measuring device according to claim 1, characterized in that: The transmission mechanism (6) includes a limiting ear plate (601). The limiting ear plate (601) is fixed on the inner wall of the upper ring seat (3) and the lower ring seat (2). A limiting hole is opened on the limiting ear plate (601), and a transmission rod (602) is rotatably engaged in the limiting hole.

3. The explosion-proof oil storage tank level measuring device according to claim 2, characterized in that: A bevel gear a (603) is fixed to the top of the transmission rod (602). The output shaft of the drive motor (5) extends through the upper ring seat (3) to the top of the bevel gear a (603). A bevel gear b (604) is fixed to one end of the output shaft of the drive motor (5). The bevel gear a (603) and the bevel gear b (604) mesh with each other.

4. The explosion-proof oil storage tank level measuring device according to claim 3, characterized in that: The bottom end of the transmission rod (602) is fixed with a transmission wheel (501). The upper part of the partition cylinder (7) is wrapped around the bottom outer wall of the lower ring seat (2). A transmission ring (702) is fixed on the inner wall of the partition cylinder (7) corresponding to the transmission wheel (501). The inner wall of the transmission ring (702) is in contact with the transmission wheel (501).

5. The explosion-proof oil storage tank level measuring device according to claim 1, characterized in that: A cleaning structure (8) is rotatably engaged on the inner wall of the vertical bar hole (701). The cleaning structure (8) includes a balance bar (801) located inside the separator cylinder (7) and a rotating part (802) rotatably engaged between the inner walls of the vertical bar hole (701). The bottom end of the balance bar (801) and the rotating part (802) are fixed together.

6. The explosion-proof oil storage tank level measuring device according to claim 5, characterized in that: The separator (7) is provided with a counterweight rod (803) on the outside. The top end of the counterweight rod (803) is fixedly connected to the rotating part (802). The mass of the counterweight rod (803) is above the balance rod (801).

7. The explosion-proof oil storage tank level measuring device according to claim 6, characterized in that: The outer wall corner of the hammer rod (803) is provided with an inclined surface (804).

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