CN217228791U

CN217228791U - Crude oil tank liquid level measuring device and guide wheel supporting unit of liquid level measuring device

Info

Publication number: CN217228791U
Application number: CN202220878321.1U
Authority: CN
Inventors: 张晓峰; 许克新; 高静; 黄海龙; 葛烨; 彭经武
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-19
Anticipated expiration: 2032-04-15

Abstract

The utility model belongs to the technical field of crude oil liquid level measuring devices in crude oil tanks, in particular to a device for measuring the crude oil liquid level in a crude oil tank, in particular to a crude oil tank liquid level measuring device and a guide wheel supporting unit of the liquid level measuring device, wherein the guide wheel supporting unit comprises a rope threading sealing assembly and a tank body connecting sleeve which is used for being connected to a dosing port of the crude oil tank in an axis vertical posture, a dosing channel is arranged in the tank body connecting sleeve, and the sealing rope threading assembly is detachably connected to the top end of the dosing channel; the guide wheel supporting unit also comprises a guide wheel frame and a wheel frame supporting seat which is offset at one radial side of the connecting sleeve of the tank body and is used for supporting the guide wheel frame; the guide wheel frame is hinged on the wheel frame supporting seat along a horizontal swinging axis to swing towards one side back to the tank body connecting sleeve when dosing, a swinging positioning structure is arranged between the wheel frame supporting seat and the guide wheel frame, the swinging positioning structure is used for limiting the swinging of the guide wheel frame, and the problem that the dosing operation of the barrel can be influenced by the guide wheel arranged above the dosing port can be solved.

Description

Crude oil tank liquid level measuring device and guide wheel supporting unit of liquid level measuring device

Technical Field

The utility model belongs to the technical field of crude oil liquid level measurement device in the crude oil tank, concretely relates to a device for measuring crude oil liquid level in crude oil tank.

Background

In the process of oil development, oil and water mixtures produced by a natural gas well usually need to be kept stand and separated in a crude oil tank, water on the lower layer is discharged into a sewage tank from a liquid outlet pipe, crude oil is continuously gathered in the crude oil tank, along with continuous production of the oil and water mixtures, more and more crude oil is contained in the crude oil tank, and in order to guarantee safe and normal operation of production, the liquid level in the crude oil tank needs to be known in real time, and the volume change condition of the liquid in the tank needs to be mastered.

The existing crude oil tank is generally a steel tank and comprises a tank body, a liquid inlet, a liquid outlet, an emptying port, a medicine adding port, a safety valve outlet and the like, when the crude oil tank is stored normally, a valve on the emptying port is opened, the crude oil tank is in a normal pressure state, when the crude oil is required to be discharged, the valve of the emptying port is closed, natural gas is filled into the crude oil tank, the pressure of the crude oil tank is increased, the valve of the liquid outlet is opened, the crude oil liquid flows out through a pipeline, and a truck is loaded and pulled to a combined station for processing. Since crude oil tanks are opaque, a level gauge is typically mounted on the tank body in order to detect the crude oil level inside the tank body. The existing liquid level meter is in a transparent glass tube shape, scales are arranged on the tube wall, the liquid level meter is vertically arranged outside the crude oil tank and is communicated with the crude oil tank through a pipeline, crude oil in the tank body enters the liquid level meter, the crude oil liquid level in the liquid level meter is the crude oil liquid level in the tank body due to the fact that the pressure of the liquid level meter in the crude oil tank is consistent with that of the crude oil tank, but the crude oil can be stuck to the glass tube wall of the liquid level meter when descending, and subsequent liquid level observation is influenced. Another existing liquid level meter is an ultrasonic liquid level meter, which is installed on a tank body by adopting ultrasonic liquid level timing, a probe of the ultrasonic liquid level meter extends into the tank body, high-frequency pulse sound waves are emitted by the probe, and the crude oil level in the tank body is measured by utilizing the echo principle.

In order to solve the problems, the liquid level meter disclosed in patent document CN201837437U is disclosed, and comprises a float (namely, a buoy in the document) which is arranged in a tank body and floats on the raw oil liquid surface, two guide wheels are arranged outside the tank body, a Teflon line is connected to the float, the Teflon line penetrates through the tank body and is lapped on the two guide wheels, a balancing weight is connected to the end part of the Teflon line, which penetrates out of the tank body, the mass of the float is greater than that of the balancing weight, when the liquid level in the tank body changes, the float can float up and down, the balancing weight can be driven to descend or ascend when the float floats up and down, scales are arranged outside the tank body, and the change of the liquid level in the tank body is indicated by the descending or ascending of the balancing weight. However, for the crude oil tank, a sealing structure is not arranged between the teflon line and the tank body, so that the natural gas filled into the tank body leaks, and the pressurization and operation safety of the tank body are affected.

In order to solve the problem of sealing, patent document with the publication number of CN207703306U discloses a liquid level measuring device installed outside an oil tank, the liquid level measuring device includes a tank body connecting sleeve (i.e., a joint in CN 207703306U), the tank body connecting sleeve extends horizontally, a mounting opening formed on a tank body is installed on the left side of the tank body connecting sleeve, a rope threading sealing assembly is connected to the right end of the tank body connecting sleeve, the rope threading sealing assembly includes a plug main body (i.e., a connecting pipe in CN 207703306U), the plug main body extends horizontally, a pressing cap is inserted at the right end of the plug main body, a sealing structure (i.e., a sealing packing in CN 207703306U) is press-installed between the pressing cap and the plug main body, the tank body connecting sleeve, the plug main body, the sealing structure and the pressing cap are both provided with through holes, and a driving rope for connection with a float penetrates through the through holes.

Although the liquid level measuring device can realize the sealing between the transmission rope and the tank body and avoid gas leakage, the whole body is horizontally arranged, the aperture of the through hole of the tank body connecting sleeve is smaller, so that a reversing structure cannot be arranged between the transmission rope and the tank body connecting sleeve, and the transmission rope can be directly contacted with the tank body connecting sleeve and can be reversed by the tank body connecting sleeve. In the process of floating up and down, the transmission rope continuously rubs with the connecting sleeve of the tank body, so that the measurement precision of the liquid level is influenced, the transmission rope is quickly lost, and the service life is short.

If the liquid level measuring device is vertically arranged, a guide wheel for realizing the reversing of the transmission rope can be arranged at a dosing port of the crude oil tank of the tank body, when a barrel is needed for dosing, the plug main body is removed, and the dosing is carried out into the tank body through the plug main body and the through hole of the connecting sleeve of the tank body. In order to avoid abrasion and smooth action between the transmission rope and the pressing cap after the transmission rope bypasses the guide wheel, the tangent point position of the guide wheel for leading out the transmission rope needs to correspond to the position right above the rope threading sealing assembly, the guide wheel can influence the dismounting operation and the dosing operation of the pressing cap and the plug main body, and the operation sight line can also be influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid level measuring device's guide pulley supporting unit to it can influence the technical problem who adds the medicine operation with the bucket to set up the guide pulley above adding the medicine mouth among the solution prior art. The utility model also provides a crude oil tank liquid level measurement device to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a liquid level measuring device's guide pulley supporting unit's technical scheme is: the guide wheel supporting unit of the liquid level measuring device comprises a rope penetrating sealing assembly for a transmission rope to penetrate through and form sealing fit with the transmission rope, and is characterized by further comprising a tank body connecting sleeve for being connected to a dosing port of a crude oil tank in an axis-vertical posture, wherein a dosing channel is arranged in the tank body connecting sleeve, the sealing rope penetrating assembly is detachably connected to the top end of the dosing channel, and the transmission rope penetrates through in a sealing mode and blocks a top end opening of the dosing channel; the guide wheel supporting unit also comprises a guide wheel frame rotatably assembled with the guide wheel, and a wheel frame supporting seat which is offset at one radial side of the tank body connecting sleeve and is used for supporting the guide wheel frame; the guide wheel frame is hinged on the wheel frame supporting seat along a horizontal swinging axis so as to swing towards one side back to the tank body connecting sleeve when dosing is carried out, a swinging positioning structure is arranged between the wheel frame supporting seat and the guide wheel frame, and the swinging positioning structure is used for limiting the swinging of the guide wheel frame when a transmission rope leading-out point of the guide wheel frame swinging to the guide wheel is positioned right above the rope penetrating sealing assembly.

The beneficial effects are that: the utility model provides a level measurement device's guide pulley supporting unit, can the direct mount add medicine mouthful department at the crude oil tank jar body, need not set up the opening on the jar body or set up other connection structure in addition, and is convenient for install, set up the guide pulley influence with medicine mouthful top and compare with prior art, the guide pulley passes through guide pulley frame and the setting of wheel carrier supporting seat on jar body coupling sleeve, the guide pulley frame articulates on the wheel carrier supporting seat, can be towards the side oscillation of jar body coupling sleeve dorsad when adding medicine, in order to put aside guide pulley and guide pulley frame from adding medicine mouthful directly over, be convenient for add medicine, and swing positioning structure can carry out the stop to the guide pulley frame when not adding medicine, avoid the guide pulley frame towards one side swing of jar body coupling sleeve, be favorable to improving crude oil tank level measurement device's reliability.

As a further improvement, one of the guide wheel frame and the wheel frame supporting seat is provided with a long hole extending along the up-down direction, and the other is fixed with a guide pin in guiding fit with the long hole, and the guide pin is used for enabling the guide wheel frame to swing around a horizontal axis relative to the wheel frame supporting seat; one of the guide wheel frame and the wheel frame supporting seat is also provided with a limiting groove parallel to the long hole, the other one is fixed with a limiting pin which is embedded into the limiting groove to limit the swing of the guide wheel frame, the corresponding end of the limiting groove is provided with an opening, and when the guide wheel frame moves upwards through the matching of the long hole and the guide pin, the opening can allow the limiting pin to be separated from the limiting groove so that the guide wheel frame swings towards one side back to the tank body connecting sleeve; the swing positioning structure is formed by a limiting pin and a limiting groove.

The beneficial effects are that: the guide pin and the long hole are used for realizing the hinging between the guide wheel frame and the wheel frame supporting seat, so that the installation is convenient; the limit pin is matched with the limit groove to realize the swinging stop of the guide wheel frame, and the device has simple structure and is convenient to manufacture.

As a further improvement, the wheel carrier supporting seat comprises a wheel carrier supporting vertical plate which vertically extends, the limiting groove is formed in the top end of the wheel carrier supporting vertical plate, an opening for enabling the limiting pin to be separated from the limiting groove is formed in the top of the limiting groove, and the long hole is formed in the wheel carrier supporting vertical plate.

The beneficial effects are that: the limiting groove is arranged at the top end of the wheel carrier supporting vertical plate, and the opening is convenient, so that the manufacturing is convenient.

As a further improvement, the two wheel carrier supporting vertical plates are arranged at intervals; the guide wheel frame comprises a connecting handle, the connecting handle is arranged between the two wheel frame supporting vertical plates, and the connecting handle is hinged on the wheel frame supporting vertical plates through the guide pin.

The beneficial effects are that: the connection handle setting of guide pulley is located two-wheeled frame and supports between the riser, and two-wheeled frame supports the riser and can form the support to the connection handle, avoids the guide pulley frame crooked, is favorable to improving liquid level measurement device's stability.

The rope threading sealing assembly comprises a plug main body, wherein a vertically through central hole is formed in the plug main body, a sealing hole section is arranged in the middle of the central hole, and a sealing gasket is arranged on the sealing hole section; the rope threading sealing assembly also comprises a pressing cap arranged above the sealing hole section, and rope threading holes which are coaxially arranged are formed in the sealing gasket and the pressing cap; the pressing cap is in threaded connection with the top end of the central hole so as to press the sealing gasket downwards when the sealing gasket is screwed tightly, so that the transmission rope and the sealing gasket form sealing.

The beneficial effects are that: the sealing between the transmission rope and the sealing gasket is realized under the extrusion of the pressing cap, the structure is simple, and the manufacture is convenient; and the leakage of gas in the crude oil tank can be avoided, and the safety of the liquid level measuring device is improved.

As a further improvement: the top of the rope through hole on the pressing cap is provided with a sinking groove, and the sinking groove forms an oil storage groove for injecting lubricating liquid.

The beneficial effects are that: the size of the oil storage tank is larger than that of the rope threading hole, so that lubricating oil can be added conveniently, and the oil storage tank can store a part of lubricating oil and does not need to be filled frequently.

As a further improvement, the bottom end of the wheel carrier supporting seat is provided with a rotating base which is rotatably assembled on the tank body connecting sleeve.

The beneficial effects are that: the rotary base is rotatably sleeved on the tank body connecting sleeve, so that the angle of the guide wheel can be adjusted automatically, the transmission rope is always positioned on the plane where the guide wheel is positioned, the friction between the transmission rope and the guide wheel is reduced, and the service life of the liquid level measuring device is prolonged.

As a further improvement, a supporting boss is arranged on the outer peripheral surface of the tank body connecting sleeve, the rotating base is a rotating sleeve, the lower end surface of the rotating sleeve is supported on the supporting boss, and the inner wall of the rotating sleeve is in rotating fit with the outer peripheral surface of the tank body connecting sleeve.

The beneficial effects are that: the rotating sleeve is used as a rotating base and is rotatably sleeved on the outer peripheral surface of the connecting sleeve of the tank body and is stopped by the supporting boss, and the structure is simple and convenient to install.

As a further improvement, the bottom end of the tank body connecting sleeve is provided with a connecting flange which is used for being fixed on a dosing port of the crude oil tank through the connecting flange.

The beneficial effects are that: the tank body connecting sleeve is connected with the tank body flange, so that the connection is convenient.

The utility model provides a crude oil tank liquid level measurement device's technical scheme is: the crude oil tank liquid level measuring device comprises a guide wheel supporting unit provided with a guide wheel, a transmission rope wound on the guide wheel, floats and a calibration weight arranged at two ends of the transmission rope respectively, and the guide wheel supporting unit comprises a rope threading sealing assembly for the transmission rope to pass through and form sealing fit with the transmission rope; the guide wheel supporting unit also comprises a guide wheel frame which is rotatably assembled with the guide wheel, and a wheel frame supporting seat which is offset at one radial side of the tank body connecting sleeve and is used for supporting the guide wheel frame; the guide wheel frame is hinged on the wheel frame supporting seat along a horizontal swinging axis so as to swing towards one side back to the tank body connecting sleeve when dosing is carried out, a swinging positioning structure is arranged between the wheel frame supporting seat and the guide wheel frame, and the swinging positioning structure is used for limiting the swinging of the guide wheel frame when a transmission rope leading-out point of the guide wheel frame swinging to the guide wheel is positioned right above the rope penetrating sealing assembly.

The beneficial effects are that: the utility model provides a crude oil tank liquid level measurement device, can the direct mount add medicine mouthful department at the crude oil tank jar body, need not set up the opening on the jar body or set up other connection structure in addition, and is convenient for install, set up the guide pulley influence with medicine mouthful top among the prior art and add the medicine and compare, the guide pulley passes through guide pulley frame and the setting of wheel carrier supporting seat is sheathe in at jar body coupling, the guide pulley frame articulates on the wheel carrier supporting seat, can be towards the lateral swing of jar body adapter sleeve dorsad when adding the medicine, with guide pulley and guide pulley frame remove from adding medicine mouthful directly over, be convenient for add the medicine, and swing location structure can carry out the stop to the guide pulley frame when not adding the medicine, avoid the guide pulley frame towards one side swing of jar body adapter sleeve, be favorable to improving crude oil tank liquid level measurement device's reliability.

The beneficial effects are that: the spacing groove sets up the top at the wheel carrier supports the riser, and the opening is convenient, is convenient for make.

The beneficial effects are that: the rotary base is rotatably sleeved on the tank body connecting sleeve, so that the angle of the guide wheel can be automatically adjusted, the transmission rope is always located on the plane where the guide wheel is located, the friction between the transmission rope and the guide wheel is reduced, and the service life of the liquid level measuring device is prolonged.

Drawings

Fig. 1 is an assembly schematic diagram of a crude oil tank liquid level measuring device and a crude oil tank provided by the utility model;

FIG. 2 is a schematic structural view of a stringing seal assembly;

FIG. 3 is a schematic view of a structure of a guide wheel supporting unit;

FIG. 4 is a front projection view of FIG. 3;

FIG. 5 is a side view of FIG. 3;

fig. 6 is a state diagram of the guide wheel support unit at the time of drug application.

Description of reference numerals: 1. a tank body; 2. a rope threading sealing assembly; 3. floating; 4. a first guide wheel; 5. a drive rope; 6. a second guide wheel; 7. a balancing weight; 8. a guide wheel supporting unit; 9. a tank body connecting sleeve; 10. a dosing channel; 11. a connecting flange; 12. supporting the boss; 13. a plug main body; 14. a fine perforated section; 15. a rough piercing section; 16. sealing the hole section; 17. a gasket; 18. pressing the cap; 19. punching a pressing cap; 20. a limiting plate; 21. a limiting groove; 22. a wheel carrier supporting seat; 23. a connecting handle; 24. a spacing pin; 25. the wheel carrier supports the vertical plate; 26. a long hole; 27. rotating the sleeve; 28. a guide pin; 29. and an oil storage tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or sequences between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.

In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model discloses in the crude oil tank liquid level measurement device that provides embodiment 1:

a measuring mechanism of a crude oil tank liquid level measuring device and a guide wheel supporting unit 8.

The measuring mechanism comprises a transmission rope 5, a buoy 3, a balancing weight 7, a guide wheel and a scale (not shown in the figure).

As shown in fig. 1, the top of the sealed subassembly 2 of wire rope handling is equipped with first guide pulley 4, be equipped with second guide pulley 6 on the lateral wall of the jar body 1, transmission rope 5 is worn out by jar body 1 is inside to be taken around taking on first guide pulley 4 and second guide pulley 6 in proper order, the one end that transmission rope 5 is located jar body 1 even has float 3, transmission rope 5 is located jar body 1 outer one end even has balancing weight 7, balancing weight 7 specifically is for maring the stone roller, float 3 is along with jar body 1 inside crude oil liquid level's lift and fluctuate, and then drive balancing weight 7 by transmission rope 5 and reciprocate. The scale is vertically arranged outside the tank body 1, and the balancing weight 7 moves up and down corresponding to corresponding scales so as to indicate the liquid level of crude oil in the tank body 1. The measuring mechanism is prior art.

The guide wheel supporting unit 8 comprises a rope threading sealing component 2, a tank body connecting sleeve 9, a guide wheel frame and a wheel frame supporting seat 22.

As shown in fig. 2, the tank connecting sleeve 9 is a cylindrical structure, and a connecting flange 11 is arranged at the bottom end of the tank connecting sleeve 9 and is used for connecting with a medicine feeding port flange arranged at the medicine feeding port of the tank 1. The tank body connecting sleeve 9 is internally provided with a medicine feeding channel 10 which is communicated up and down, the lower end of the medicine feeding channel 10 is communicated with a medicine feeding port, and the hole wall of the upper part of the medicine feeding channel 10 is provided with internal threads for being connected with the plug main body 13.

The stringing sealing assembly 2 comprises a plug main body 13 and a pressing cap 18, the plug main body 13 is of a T-shaped structure, the upper portion of the plug main body 13 is a small-diameter section, the lower portion of the plug main body is a large-diameter section, the inside of the plug main body 13 is provided with a plug main body perforation which is vertically communicated, a transmission rope 5 penetrates through the plug main body, the plug main body perforation comprises a fine perforation section 14 and a coarse perforation section 15, the fine perforation section 14 extends in the vertical direction, the lower end of the fine perforation section 14 is communicated with a medicine adding channel 10 of a tank connecting sleeve 9, the upper end of the coarse perforation section 15 is an opening, the coarse perforation section 15 is located above the fine perforation section 14, an internal thread is arranged on the hole wall of the coarse perforation section, and the pressing cap 18 is connected. A sealing hole section 16 is arranged between the rough perforation section 15 and the fine perforation section 14, the sealing hole section 16 is funnel-shaped, a sealing gasket 17 is arranged in the sealing hole section 16, and a sealing gasket perforation for the transmission rope 5 to penetrate through is arranged in the sealing gasket 17. The outer peripheral surface of the large-diameter section of the plug main body 13 is provided with external threads which are connected to the tank connecting sleeve 9 in a threaded manner, and the small-diameter section of the plug main body 13 extends upwards out of the tank connecting sleeve 9.

The pressing cap 18 is specifically an adjusting bolt, and is used for screwing into the plug main body 13 when no medicine is added, so as to plug the rough perforated section 15 of the plug main body 13, of course, the pressing cap 18 is also internally provided with a pressing cap perforation 19, the pressing cap perforation 19 extends up and down and is vertically communicated with a sealing gasket perforation of the sealing gasket 17, so that the driving rope 5 penetrates out of the tank body 1, and the sealing gasket 17 can be downwards extruded in the process of screwing the pressing cap 18 downwards, so that the sealing between the sealing gasket 17 and the driving rope 5 is realized. The top of the press cap through hole is provided with an oil storage groove 29, and the oil storage groove 29 is a sunk groove with an upward opening and is used for supplying lubricating liquid to the press cap through hole 19 of the press cap 18.

As shown in fig. 3, 4 and 5, the wheel carrier support seat 22 includes a rotating sleeve 27, the rotating sleeve 27 is cylindrical, an annular support boss 12 is provided on the outer circumferential surface of the tank connecting sleeve 9, and the rotating sleeve 27 is rotatably fitted over the tank connecting sleeve 9 with respect to the tank connecting sleeve 9. Two wheel carrier supporting vertical plates 25 are arranged on the outer peripheral surface of the rotating sleeve 27, the two wheel carrier supporting vertical plates 25 are arranged in parallel at intervals, and the plate surfaces of the two wheel carrier supporting vertical plates 25 are arranged oppositely. The two-wheel-frame supporting vertical plate 25 extends along the up-down direction, and the bottom of the two-wheel-frame supporting vertical plate 25 is connected with each other and is connected on the rotating sleeve 27. The two wheel frame support vertical plates 25 are spaced to form clamping grooves for mounting the guide wheel frame.

The guide wheel frame is Y shape, including two limiting plates 20, and the face of two limiting plates 20 is relative, all is equipped with the hinge hole on each limiting plate 20, and first guide wheel 4 rotates the assembly in the interval of two limiting plates 20. The middle position of the bottoms of the two limit plates 20 is provided with a connecting handle 23, the connecting handle 23 extends along the up-down direction, and the top end of the connecting handle 23 is connected with the bottoms of the two limit plates 20.

The connecting handle 23 is inserted into a clamping groove between the two wheel frame supporting vertical plates 25 and is hinged with the two wheel frame supporting vertical plates 25. Specifically, each wheel carrier supporting vertical plate 25 is provided with a straight slot 26 extending vertically, the connecting handle 23 is provided with a through hole, the connecting handle 23 is hinged on the wheel carrier supporting seat 22 through a penetrating bolt, and the penetrating bolt is used as a guide pin 28. In order to avoid circumferential swing of the connecting handle 23, a U-shaped groove 21 is formed in the two-wheel-frame supporting vertical plate 25 right above the long hole 26, limit pins 24 are arranged on the plate surfaces of two sides of the connecting handle 23, and the two limit pins 24 are located on the same axis. When the device is installed, the limiting pin 24 is clamped into the U-shaped groove 21 of the wheel frame supporting vertical plate 25, and the connecting handle 23 is locked between the two wheel frame supporting vertical plates 25 through a nut. When adding medicine, as shown in fig. 5, the nut can be unscrewed, the wheel frame support seat 22 is lifted upwards, so that the limit pin 24 on the connecting handle 23 is separated from the U-shaped groove 21, and the wheel frame support seat 22 is laid down to avoid influencing the medicine adding operation.

In the in-service use, when not adding the medicine, end cap main part 13 shutoff jar body adapter sleeve 9 adds medicine passageway 10, and cursory 3 in jar body 1 floats from top to bottom along with the lift of jar internal crude oil liquid level, and then drives balancing weight 7 by driving rope 5 and reciprocates, and balancing weight 7 reciprocates corresponding scale on the corresponding scale, indicates jar body 1 in crude oil's the liquid level. When adding medicine, the nuts for fixing the wheel frame supporting vertical plate 25 and the connecting handle 23 are loosened, then the wheel frame supporting seat 22 is lifted upwards, as shown in fig. 6, the limiting pin 24 on the connecting handle 23 is separated from the U-shaped groove 21 and faces away from the tank body connecting sleeve 9 to lay down the wheel frame, then the plug main body 13 is detached from the tank body connecting sleeve 9, and the medicine is added into the tank body 1 through the medicine adding channel 10 on the plug main body 13.

The utility model provides a crude oil tank liquid level measuring device, a tank body connecting sleeve 9 is provided with a medicine adding channel 10 for adding medicine into a tank body 1, so that the crude oil tank liquid level measuring device can be arranged at the medicine adding opening of the crude oil tank body 1 without arranging an opening or other connecting structures on the tank body 1, the installation is convenient, compared with the prior art that the medicine adding is influenced by arranging the guide wheel above the medicine adding port, the guide wheel is arranged on the tank body connecting sleeve through the guide wheel frame and the wheel frame supporting seat 22, the guide wheel frame is hinged on the wheel frame supporting seat 22, can swing towards one side back to the tank body connecting sleeve 9 during dosing so as to move the guide wheel and the guide wheel frame away from the right upper part of the dosing port, thereby facilitating dosing, and the swing positioning structure can stop the guide wheel frame when no medicine is added, so that the guide wheel frame is prevented from swinging towards one side of the tank body connecting sleeve 9, and the reliability of the crude oil tank liquid level measuring device is improved.

The utility model discloses in the embodiment 2 of the crude oil tank liquid level measurement device that provides:

the present embodiment is different from embodiment 1 in that: in embodiment 1, two wheel frame supporting vertical plates 25 of the wheel frame supporting seat 22 are provided, and the connecting handle 23 of the wheel frame is located between the two wheel frame supporting vertical plates 25. In this embodiment, the wheel frame supporting seat 22 is provided with only one wheel frame supporting vertical plate 25, and the connecting handle 23 is hinged on the wheel frame supporting vertical plate 25 through a bolt.

The utility model discloses in the crude oil tank liquid level measurement device that provides embodiment 3:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the guide wheel frame is Y-shaped, the guide wheel frame includes two limiting plates 20, and the guide wheel is located between the two limiting plates 20. In this embodiment, the guide wheel frame only includes one limiting plate 20, the limiting plate 20 is provided with a rotating shaft, and the guide wheel is rotatably assembled on the rotating shaft.

The utility model discloses in the crude oil tank liquid level measurement device that provides embodiment 4:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the top end of the wheel frame supporting upright plate 25 is provided with a U-shaped groove 21, the U-shaped opening faces upward, the connecting handle 23 is provided with a limit pin 24, the limit pin 24 is clamped into the U-shaped groove 21, and the limit pin 24 and the U-shaped groove 21 serve as a stop structure to prevent the wheel frame supporting seat 22 from swinging. In the embodiment, the wheel frame supporting vertical plate 25 and the connecting handle 23 are both provided with through holes, the wheel frame supporting vertical plate 25 is further provided with a bolt, the bolt is inserted into the wheel frame supporting vertical plate 25 and the connecting handle 23 to prevent the connecting handle 23 from swinging, when the bolt is pulled out, the connecting handle 23 can swing relative to the wheel frame supporting vertical plate 25, the bolt serves as a stopping structure, and at this time, the long hole 26 is a round hole.

The utility model provides a crude oil tank liquid level measurement device's embodiment 5:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the rotating sleeve 27 is directly fitted over the outer peripheral surface of the tank connecting sleeve 9. In this embodiment, a bearing is disposed between the rotating sleeve 27 and the tank connecting sleeve 9, and an outer ring of the bearing is fixedly connected to the rotating sleeve 27.

The utility model discloses in the crude oil tank liquid level measurement device that provides embodiment 6:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the rotating sleeve 27 is rotatably fitted over the tank connecting sleeve 9 with respect to the tank connecting sleeve 9. In this embodiment, an external thread is provided on the outer circumferential surface of the tank connecting sleeve 9, an internal thread is provided on the inner circumferential surface of the rotating sleeve 27, and the rotating sleeve 27 is screwed on the tank connecting sleeve 9. In other embodiments, the rotary sleeve 27 may be designed integrally with the tank connecting sleeve 9. In other embodiments, the rotating sleeve 27 can also be welded directly to the tank connecting sleeve 9.

The utility model discloses in the crude oil tank liquid level measurement device that provides embodiment 7:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the tank connecting sleeve 9 is provided with the supporting boss 12, and the rotating sleeve 27 is stopped by the supporting boss 12. In this embodiment, the tank connecting sleeve 9 includes a large diameter section and a small diameter section, the small diameter section is located above the large diameter section, and a stopping step is formed between the large diameter section and the small diameter section for stopping the rotating sleeve 27.

The utility model discloses still provide level measurement device's guide pulley supporting unit's embodiment:

the structure of the guide wheel supporting unit of the liquid level measuring device in this embodiment is the same as that of the guide wheel supporting unit of embodiment 1 of the crude oil tank liquid level measuring device, and details thereof are not repeated.

Of course, in other embodiments, the structure of the guide wheel supporting unit in any embodiment of embodiments 2 to 7 of the crude oil tank liquid level measuring device may also be used as the guide wheel supporting unit of the liquid level measuring device, and will not be described herein again.

The above, only be the preferred embodiment of the present invention, not be used for limiting the present invention, the patent protection scope of the present invention is based on the claims, all that is applied to the structural changes made by the contents of the specification and the drawings of the present invention, and the same principle should be included in the protection scope of the present invention.

Claims

1. The guide wheel supporting unit of the liquid level measuring device comprises a rope threading sealing assembly (2) for a transmission rope (5) to penetrate through and form sealing fit with the transmission rope (5), and is characterized by further comprising a tank body connecting sleeve (9) for being connected to a dosing port of a crude oil tank in an axis-vertical posture, wherein a dosing channel (10) is arranged in the tank body connecting sleeve (9), the sealing rope threading assembly is detachably connected to the top end of the dosing channel (10), and the transmission rope (5) penetrates through and blocks an opening in the top end of the dosing channel (10) in a sealing mode; the guide wheel supporting unit (8) also comprises a guide wheel frame which is rotatably assembled with a guide wheel, and a wheel frame supporting seat (22) which is offset at one side in the radial direction of the tank body connecting sleeve (9) and is used for supporting the guide wheel frame; the guide wheel frame is hinged on the wheel frame supporting seat (22) along a horizontal swinging axis so as to swing towards one side back to the tank body connecting sleeve (9) during dosing, a swinging positioning structure is arranged between the wheel frame supporting seat (22) and the guide wheel frame, and the swinging positioning structure is used for limiting the swinging of the guide wheel frame when the leading-out point of a transmission rope (5) swinging from the guide wheel frame to the guide wheel is positioned right above the rope threading sealing component (2).

2. The guide wheel supporting unit of the liquid level measuring device according to claim 1, wherein one of the guide wheel frame and the wheel frame supporting base (22) is provided with a long hole (26) extending in the up-down direction, and the other is fixed with a guide pin (28) in guiding engagement with the long hole (26), the guide pin (28) being used for swinging the guide wheel frame about a horizontal axis with respect to the wheel frame supporting base (22); one of the guide wheel frame and the wheel frame support seat (22) is also provided with a limit groove (21) parallel to the long hole (26), the other is fixed with a limit pin (24) embedded in the limit groove (21) to limit the swing of the guide wheel frame, the corresponding end of the limit groove (21) is provided with an opening, and when the guide wheel frame moves upwards through the matching of the long hole (26) and the guide pin, the opening can allow the limit pin (24) to be separated from the limit groove (21) so that the guide wheel frame swings towards one side back to the tank body connecting sleeve (9); the swing positioning structure is formed by a limiting pin (24) and a limiting groove (21).

3. The guide wheel supporting unit of the liquid level measuring device according to claim 2, wherein the wheel frame supporting seat (22) comprises a vertically extending wheel frame supporting vertical plate (25), the limiting groove (21) is disposed at the top end of the wheel frame supporting vertical plate (25), an opening for the limiting pin (24) to disengage from the limiting groove (21) is disposed at the top of the limiting groove (21), and the long hole (26) is disposed on the wheel frame supporting vertical plate (25).

4. The guide wheel supporting unit of the liquid level measuring device according to claim 3, wherein two vertical wheel frame supporting plates (25) are provided, and the two vertical wheel frame supporting plates (25) are arranged at intervals; the guide wheel frame comprises a connecting handle (23), the connecting handle (23) is arranged between the two wheel frame supporting vertical plates (25), and the connecting handle (23) is hinged on the wheel frame supporting vertical plates (25) through the guide pin (28).

5. The guide wheel supporting unit of the liquid level measuring device according to any one of claims 1 to 4, wherein the rope penetrating sealing assembly (2) comprises a plug main body (13), a central hole which penetrates up and down is formed in the plug main body (13), a sealing hole section (16) is arranged in the middle of the central hole, and a sealing gasket (17) is arranged on the sealing hole section (16); the stringing sealing assembly (2) also comprises a pressing cap (18) arranged above the sealing hole section (16), and stringing holes which are coaxially arranged are arranged on the sealing gasket (17) and the pressing cap (18); a pressing cap (18) is screwed on the top end of the central hole to press the sealing gasket (17) downwards when screwing so that the driving rope (5) forms a seal with the sealing gasket (17).

6. The guide wheel support unit of the liquid level measuring device according to claim 5, wherein a sunk groove is formed at the top of the rope penetrating hole on the pressing cap (18), and the sunk groove forms an oil storage groove (29) for injecting lubricating liquid.

7. The guide wheel supporting unit of the liquid level measuring device according to any one of claims 1 to 4, wherein the bottom end of the wheel carrier supporting seat (22) is provided with a rotating base which is rotatably assembled on the tank body connecting sleeve (9).

8. The guide wheel supporting unit of the liquid level measuring device according to claim 7, wherein the tank body connecting sleeve (9) is provided with a supporting boss (12) on the outer peripheral surface thereof, the rotating base is a rotating sleeve (27), the lower end surface of the rotating sleeve (27) is supported on the supporting boss (12), and the inner wall of the rotating sleeve (27) is in rotating fit with the outer peripheral surface of the tank body connecting sleeve (9).

9. The guide wheel supporting unit of a liquid level measuring device according to any one of claims 1 to 4, wherein the bottom end of the tank connecting sleeve (9) is provided with a connecting flange (11) for fixing on a dosing port of a crude oil tank through the connecting flange (11).

10. Crude oil tank liquid level measuring device, including install guide wheel support unit (8) of guide wheel, use for around setting up in the drive rope (5) on the guide wheel, also include setting up in the buoy (3) and calibration mound of both ends of drive rope (5) respectively, characterized by that, the guide wheel support unit (8) is the guide wheel support unit of the liquid level measuring device of any claim 1 to 9.