CN209783699U - Lever type buoy liquid level meter for asphalt storage tank - Google Patents
Lever type buoy liquid level meter for asphalt storage tank Download PDFInfo
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- CN209783699U CN209783699U CN201920571305.6U CN201920571305U CN209783699U CN 209783699 U CN209783699 U CN 209783699U CN 201920571305 U CN201920571305 U CN 201920571305U CN 209783699 U CN209783699 U CN 209783699U
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Abstract
The utility model relates to a lever type buoy liquid level meter for an asphalt storage tank, which comprises a lever floating ball mechanism and a floating ball linkage indicating mechanism, wherein the lever floating ball mechanism and the floating ball linkage indicating mechanism are arranged on the asphalt storage tank; the lever floating ball mechanism consists of a lever bracket, a lever and a floating ball, wherein one end of the lever is provided with the floating ball, and the other end of the lever is provided with a tail wheel; the floating ball linkage indicating mechanism consists of a steel wire rope, a pulley, a fixed three-way pipe, a connecting three-way pipe, a vertical pipe, a heavy hammer, a magnet and a magnetic turning plate indicator; pulleys are respectively arranged in the fixed three-way pipe and the connecting three-way pipe, one end of the steel wire rope is connected with the tail pulley, the other end of the steel wire rope is connected with a heavy hammer after bypassing the pulleys in the fixed three-way pipe and the connecting three-way pipe, the heavy hammer is arranged in the vertical pipe, a magnet is arranged at the bottom of the heavy hammer, and a magnetic turning plate indicator is arranged on one side of the vertical pipe in parallel. The utility model discloses can overcome the various defects that traditional buoy level gauge exists in pitch storage tank level measurement, it is little to have a liquid level indicator size, and the liquid level reaction is sensitive, and the operation is stable, long service life's characteristics.
Description
Technical Field
The utility model relates to a liquid level measurement technical field especially relates to a lever buoy level gauge suitable for store high temperature high boiling liquid storage tank such as pitch, tar.
Background
At present, asphalt (including medium-temperature asphalt and modified asphalt) produced by tar distillation equipment of a coke-oven plant is sold partially by producing solid asphalt through an asphalt forming unit and partially as liquid asphalt, asphalt raw materials and asphalt products used by the tar distillation equipment are stored in an asphalt storage tank, but the liquid level measurement of the asphalt is always difficult.
the traditional field measurement method is to measure by a buoy liquid level meter, and the upper disc measurement is generally converted into the liquid level height by the way of pressure measurement according to the density calculation of liquid. However, asphalt liquid has its particularity, for example, the storage temperature is as high as more than 200 ℃, the liquid contains solid suspended matters such as polymers, the liquid has large viscosity and is easy to solidify, the asphalt smoke has large volatilization and is easy to condense, the buoy and the draft tube or the guide steel wire are easy to be adhered together and are not easy to float up and down, and the like, which often results in that liquid level measurement cannot be realized, or the instrument liquid pressure measuring interface is blocked by the solidified asphalt and fails.
People also try to measure by other methods, for example, a floating ball liquid level meter is adopted for measurement, but the traditional floating ball liquid level meter is provided with a liquid level indicator with the same height as the liquid level, the liquid level of an asphalt storage tank is higher than 10m, so that a lifting rod of the floating ball liquid level meter is too long, the liquid level indicator is too high at the top of the storage tank and is difficult to realize, in addition, the floating ball is easy to be adhered with a guide cylinder or a guide steel wire, so that the floating ball cannot float up and down, asphalt smoke is easy to enter the liquid level indicator along the lifting rod of the liquid level indicator to be condensed, and the liquid level indicator is blocked. The adoption of the radar liquid level meter can be carried out for a short time, but because asphalt smoke is easy to condense on the radar liquid level meter, the radar electromagnetic wave receiving failure is caused, and the maintenance is frequent, so that the method is not suitable for use.
The current practical situation is: the liquid level of the asphalt storage tank is basically evaluated by process calculation, the height of the liquid level is periodically checked through an observation hole, and for storage equipment with a small volume (such as an asphalt reaction kettle), a weighing module is adopted to estimate the height of the liquid level, but the result is often influenced by wind load and errors of the weighing module, and for storage tanks with a large volume, the weighing module cannot be used.
Disclosure of Invention
The utility model provides a lever buoy level gauge for pitch storage tank can overcome the various defects that traditional buoy level gauge exists in pitch storage tank level measurement, thoroughly solves the pitch class liquid level measurement difficult problem that has high temperature, high boiling point, liquid viscosity and easily solidifies greatly, the big easy condensation characteristics of pitch cigarette volatile, provides the required power of weight lift according to lever principle, and it is little to have a liquid level indicator size, and the liquid level reaction is sensitive, and the operation is stable, long service life's characteristics.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A lever type buoy liquid level meter for an asphalt storage tank comprises a lever floating ball mechanism and a floating ball linkage indicating mechanism which are arranged on the asphalt storage tank; the lever floating ball mechanism consists of a lever bracket, a lever and a floating ball, one end of the lever bracket is connected with the asphalt storage tank, the other end of the lever bracket is hinged with the middle part of the lever through a pin shaft, the floating ball is arranged at one end of the lever, and the tail wheel is arranged at the other end of the lever; the floating ball linkage indicating mechanism consists of a steel wire rope, a pulley, a fixed three-way pipe, a connecting three-way pipe, a vertical pipe, a heavy hammer, a magnet and a magnetic turning plate indicator; the fixed three-way pipe and the connecting three-way pipe are arranged at the top of the asphalt storage tank in parallel, pulleys are respectively arranged in the fixed three-way pipe and the connecting three-way pipe, one end of a steel wire rope is connected with a tail pulley, the other end of the steel wire rope is connected with a heavy hammer after bypassing the fixed three-way pipe and the pulleys in the connecting three-way pipe, the heavy hammer is arranged in the vertical pipe, the vertical pipe is fixed outside the asphalt storage tank, a magnet is arranged at the bottom of the heavy hammer, a magnetic turning plate indicator is arranged on one side of the vertical pipe in parallel.
The floating ball is a hollow ball body.
The tail wheel is fixedly connected with the lever through a central shaft and can rotate around the central shaft.
The distance L1 between the floating ball and the pin shaft is at least 3 times of the distance L2 between the tail wheel and the pin shaft.
A lever mounting hole is formed in one side of the middle of the asphalt storage tank and is sealed through a mounting hole blind plate, and one end of a lever bracket is fixedly connected with the mounting hole blind plate; the lever bracket is composed of 2 metal plates which are arranged in parallel, and the lever is arranged between the 2 metal plates.
A three-way pipe mounting hole is formed in the top of the asphalt storage tank, 1 outlet of the fixed three-way pipe is connected with the three-way pipe mounting hole through a connecting flange, the other 2 outlets of the fixed three-way pipe are closed through a three-way pipe blind plate, a through hole is formed in the three-way pipe blind plate close to one side of the connected three-way pipe and used for a steel wire rope to pass through, and a pulley support is arranged on the three-way pipe blind plate on the other side and used for supporting a pulley.
1 outlet of the connecting three-way pipe is connected with the vertical pipe through a connecting flange, the other 2 outlets of the connecting three-way pipe are closed through a three-way pipe blind plate, a through hole for a steel wire rope to pass through is formed in the three-way pipe blind plate close to one side of the fixed three-way pipe, and a pulley support is arranged on the three-way pipe blind plate on the other side and used for supporting a pulley; the top of the connecting three-way pipe is provided with a nitrogen inlet.
And a transverse pipe is arranged between the fixed three-way pipe and the connecting three-way pipe, two ends of the transverse pipe are respectively connected with the three-way pipe blind plates on the corresponding sides of the fixed three-way pipe and the connecting three-way pipe, a steel wire rope penetrating out of the fixed three-way pipe penetrates into the connecting three-way pipe after passing through the transverse pipe, and the inner part of the transverse pipe is filled with soft sealing.
The vertical pipe is detachably and fixedly connected with the side wall of the asphalt storage tank through a vertical pipe fixing support.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the lever can rotate around the pin shaft on the vertical surface, because the length L1 from the pin shaft to the floating ball is several times of the length L2 from the pin shaft to the tail wheel, according to the lever principle, one end of the tail wheel can generate lever force which is several times of the buoyancy force of the floating ball, so that the force for driving the heavy hammer to ascend and descend by the steel wire rope is large enough, and the smooth measurement is ensured; compared with the traditional floating ball level gauge, the pull force is larger, and the sensitivity of liquid level display is improved;
2) Compared with the traditional floating ball liquid level meter, the height of the liquid level indicator outside the asphalt storage tank is greatly shortened;
3) The lever bracket, the fixed three-way pipe, the vertical pipe and the asphalt storage tank are all detachable connecting structures, so that the disassembly and the maintenance are convenient;
4) The upper part of the connecting three-way pipe is provided with a nitrogen inlet which is used for performing nitrogen sealing on the three-way pipe and preventing asphalt smoke from entering the magnetic turning plate indicator;
5) The fixed three-way pipe, the connecting three-way pipe and the vertical pipe are all of closed structures, the horizontal pipe is internally provided with the soft seal, the soft seal can play a role in sealing and fixing the three-way pipe and the connecting three-way pipe, the steel wire rope can freely slide, and consumption of sealed nitrogen is reduced.
drawings
Fig. 1 is a front view of a lever type float level gauge for an asphalt storage tank according to the present invention.
Fig. 2 is a view a-a in fig. 1.
In the figure: 1. asphalt storage tank 2, lever mounting hole 3, tee pipe mounting hole 4, lever support 5, lever 6, floating ball 7, tail pulley 8, pin shaft 9, steel wire rope 10, mounting hole blind plate 11, fixed tee pipe 12, connecting tee pipe 13, vertical pipe 14, horizontal pipe 15, soft seal 16, pulley 17, tee pipe blind plate 18, heavy hammer 19, magnet 20, magnetic turning plate indicator 21, nitrogen inlet 22, connecting flange 23, vertical pipe fixing support
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
As shown in fig. 1 and 2, the lever type buoy level gauge for the asphalt storage tank of the present invention comprises a lever floating ball mechanism and a floating ball linkage indicating mechanism which are installed on the asphalt storage tank 1; the lever floating ball mechanism consists of a lever bracket 4, a lever 5 and a floating ball 6, one end of the lever bracket 4 is connected with the asphalt storage tank 1, the other end of the lever bracket is hinged with the middle part of the lever 5 through a pin shaft 8, the floating ball 6 is arranged at one end of the lever 5, and the tail wheel 7 is arranged at the other end of the lever 5; the floating ball linkage indicating mechanism consists of a steel wire rope 9, a pulley 16, a fixed three-way pipe 11, a connecting three-way pipe 12, a vertical pipe 13, a heavy hammer 18, a magnet 19 and a magnetic turning plate indicator 20; the fixed three-way pipe 11 and the connecting three-way pipe 12 are arranged at the top of the asphalt storage tank 1 in parallel, pulleys 16 are arranged in the fixed three-way pipe 11 and the connecting three-way pipe 12 respectively, one end of a steel wire rope 9 is connected with a tail pulley 7, the other end of the steel wire rope bypasses the fixed three-way pipe 11 and is connected with a heavy hammer 18 after bypassing the pulleys 16 in the connecting three-way pipe 12, the heavy hammer 18 is arranged in a vertical pipe 13, the vertical pipe 13 is fixed at the outer side of the asphalt storage tank 1, a magnet 19 is arranged at the bottom of the heavy hammer 18, a magnetic turning plate indicator 20 is arranged on one side of the vertical pipe 13 in parallel.
The floating ball 6 is a hollow sphere.
The tail wheel 7 is fixedly connected with the lever 5 through a central shaft and can rotate around the central shaft.
the distance L1 between the floating ball 6 and the pin shaft 8 is at least 3 times of the distance L2 between the tail wheel and the pin shaft.
As shown in fig. 2, a lever mounting hole 2 is formed in one side of the middle of the asphalt storage tank 1, the lever mounting hole 2 is sealed by a mounting hole blind plate 10, and one end of a lever bracket 4 is fixedly connected with the mounting hole blind plate 10; the lever bracket 4 is composed of 2 metal plates arranged in parallel, and the lever 5 is arranged between the 2 metal plates.
The top of the asphalt storage tank 1 is provided with a three-way pipe mounting hole 3, 1 outlet of the fixed three-way pipe 11 is connected with the three-way pipe mounting hole 3 through a connecting flange 22, the other 2 outlets of the fixed three-way pipe 11 are closed through a three-way pipe blind plate 17, a through hole is formed in the three-way pipe blind plate 17 close to one side of the connecting three-way pipe 12 for a steel wire rope 9 to pass through, and a pulley support is arranged on the three-way pipe blind plate 17 on the other side and used for supporting a pulley 16.
1 outlet of the connecting three-way pipe 12 is connected with the stand pipe 13 through a connecting flange 22, the other 2 outlets of the connecting three-way pipe 12 are closed through a three-way pipe blind plate 17, a through hole is formed in the three-way pipe blind plate 17 close to one side of the fixed three-way pipe 11 and used for a steel wire rope 9 to pass through, and a pulley support is arranged on the three-way pipe blind plate 17 on the other side and used for supporting a pulley 16; the top of the connecting tee 12 is provided with a nitrogen inlet 21.
A transverse pipe 14 is arranged between the fixed three-way pipe 11 and the connecting three-way pipe 12, two ends of the transverse pipe 14 are respectively connected with the fixed three-way pipe 11 and a three-way pipe blind plate 17 at the corresponding side of the connecting three-way pipe 12, a steel wire rope 9 penetrating out of the fixed three-way pipe 11 penetrates into the connecting three-way pipe 12 after passing through the transverse pipe 14, and a soft seal 15 is filled in the transverse pipe 14.
The stand pipe 13 is detachably and fixedly connected with the side wall of the asphalt storage tank 1 through a stand pipe fixing bracket 23.
In the utility model, the floating ball 6 is fixed at one end of the lever 5 and can float up and down along with the liquid surface of the stored asphalt in the asphalt storage tank 1. The tail pulley 7 can rotate around a horizontally arranged central shaft, so that the connection point of the tail pulley 7 and the steel wire rope 9 is relatively fixed.
The distance L1 between the floating ball 6 and the pin shaft 8 is several times of the distance L2 between the tail wheel 7 and the pin shaft 8, so that a lever force larger than the buoyancy of the floating ball 6 can be generated at one end of the tail wheel 7, such as L1: and 4 is equal to L2, one end of the tail wheel 7 can generate a lever force which is 4 times of the buoyancy of the floating ball 6. Because the reverse lever force of the weight 18 is overcome when the floating ball 6 floats, the weight of the weight 18 is set to be half of the lever force acting on one end of the tail wheel 7 through the buoyancy, i.e. the weight of the weight 18 is 2 times of the buoyancy of the floating ball 6, so that the lifting force and the descending force are kept consistent (both are 2 times of the buoyancy of the floating ball 6).
the utility model relates to a pitch is lever buoy level gauge for storage tank's use as follows: when the liquid level of the asphalt stored in the asphalt storage tank 1 rises, the floating ball 6 floats upwards along with the rise of the liquid level under the action of asphalt buoyancy, the tail wheel 7 pulls the steel wire rope 9 downwards under the action of the lever 5, the steel wire rope 9 sequentially rounds two pulleys 16 and then is connected to the heavy hammer 18, and the heavy hammer 18 is pulled upwards by balance force to drive the magnet 19 to move upwards; when the liquid level descends, the floating ball 6 descends along with the descending of the liquid level, at the moment, the buoyancy disappears, the lever force disappears, the heavy hammer 18 in the vertical pipe 13 moves downwards under the action of the gravity force, and the magnet 19 is driven to move downwards; the tail wheel 7 synchronously moves upwards until the floating ball 6 generates buoyancy and reaches a balanced state, and the heavy hammer 18 stops moving; when the magnet 19 moves, the magnetic coupling is transmitted to the magnetic turning plate indicator 20, so that the magnetic turning column in the magnetic turning plate indicator 20 is driven to turn red and white and display the liquid level height.
If the floating ball 6 floats above the height of L1, the tail wheel 7 floats above the height of L2 only, such as L1: the height of the magnetic turn plate indicator 20 is reduced by 4 times compared with the height of the indicator in the conventional float level gauge when L2 is equal to 4, and the height is also reduced by 4 times when the L2 is moved downwards.
The asphalt storage tank is continuously filled with nitrogen during operation using a lever float level gauge to protect the magnetic flipping panel indicator 20 from asphalt fumes.
the above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A lever type buoy liquid level meter for an asphalt storage tank is characterized by comprising a lever floating ball mechanism and a floating ball linkage indicating mechanism which are arranged on the asphalt storage tank; the lever floating ball mechanism consists of a lever bracket, a lever and a floating ball, one end of the lever bracket is connected with the asphalt storage tank, the other end of the lever bracket is hinged with the middle part of the lever through a pin shaft, the floating ball is arranged at one end of the lever, and the tail wheel is arranged at the other end of the lever; the floating ball linkage indicating mechanism consists of a steel wire rope, a pulley, a fixed three-way pipe, a connecting three-way pipe, a vertical pipe, a heavy hammer, a magnet and a magnetic turning plate indicator; the fixed three-way pipe and the connecting three-way pipe are arranged at the top of the asphalt storage tank in parallel, pulleys are respectively arranged in the fixed three-way pipe and the connecting three-way pipe, one end of a steel wire rope is connected with a tail pulley, the other end of the steel wire rope is connected with a heavy hammer after bypassing the fixed three-way pipe and the pulleys in the connecting three-way pipe, the heavy hammer is arranged in the vertical pipe, the vertical pipe is fixed outside the asphalt storage tank, a magnet is arranged at the bottom of the heavy hammer, a magnetic turning plate indicator is arranged on one side of the vertical pipe in parallel.
2. A lever type float level gauge for asphalt storage tanks as claimed in claim 1, wherein said float ball is a hollow sphere.
3. A lever float level gauge for an asphalt storage tank as claimed in claim 1, wherein said tail wheel is fixedly connected to the lever by a central shaft and is rotatable about the central shaft.
4. A lever float level gauge for asphalt storage tanks as claimed in claim 1, wherein the distance L1 from the float ball to the pin is at least 3 times the distance L2 from the tail wheel to the pin.
5. A lever type buoy liquid level gauge for an asphalt storage tank as claimed in claim 1, wherein a lever mounting hole is formed in one side of the middle of the asphalt storage tank, the lever mounting hole is closed by a mounting hole blind plate, and one end of a lever bracket is fixedly connected with the mounting hole blind plate; the lever bracket is composed of 2 metal plates which are arranged in parallel, and the lever is arranged between the 2 metal plates.
6. A lever type buoy liquid level gauge for an asphalt storage tank as claimed in claim 1, wherein a tee pipe mounting hole is formed at the top of the asphalt storage tank, 1 outlet of a fixed tee pipe is connected with the tee pipe mounting hole through a connecting flange, the other 2 outlets of the fixed tee pipe are closed through a tee pipe blind plate, a through hole is formed in the tee pipe blind plate close to one side of the connecting tee pipe for a steel wire rope to pass through, and a pulley support is arranged on the tee pipe blind plate at the other side for supporting a pulley.
7. A lever type buoy liquid level gauge for an asphalt storage tank as claimed in claim 1, wherein 1 outlet of the connecting three-way pipe is connected with a vertical pipe through a connecting flange, the other 2 outlets of the connecting three-way pipe are closed through a three-way pipe blind plate, a through hole is formed in the three-way pipe blind plate close to one side of the fixed three-way pipe for a steel wire rope to pass through, and a pulley support is arranged on the three-way pipe blind plate at the other side for supporting a pulley; the top of the connecting three-way pipe is provided with a nitrogen inlet.
8. The lever type buoy level gauge for the asphalt storage tank as claimed in claim 1, wherein a horizontal pipe is arranged between the fixed three-way pipe and the connecting three-way pipe, two ends of the horizontal pipe are respectively connected with the three-way pipe blind plates at the corresponding sides of the fixed three-way pipe and the connecting three-way pipe, a steel wire rope penetrating out from the fixed three-way pipe passes through the horizontal pipe and then penetrates into the connecting three-way pipe, and soft sealing is filled in the horizontal pipe.
9. A lever float level gauge for an asphalt storage tank as claimed in claim 1, wherein said stand pipe is removably secured to the side wall of the asphalt storage tank by a stand pipe securing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920571305.6U CN209783699U (en) | 2019-04-25 | 2019-04-25 | Lever type buoy liquid level meter for asphalt storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920571305.6U CN209783699U (en) | 2019-04-25 | 2019-04-25 | Lever type buoy liquid level meter for asphalt storage tank |
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| Publication Number | Publication Date |
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| CN209783699U true CN209783699U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920571305.6U Active CN209783699U (en) | 2019-04-25 | 2019-04-25 | Lever type buoy liquid level meter for asphalt storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990871A (en) * | 2019-04-25 | 2019-07-09 | 中冶焦耐(大连)工程技术有限公司 | A kind of asphalt reservior lever buoy level meter |
-
2019
- 2019-04-25 CN CN201920571305.6U patent/CN209783699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990871A (en) * | 2019-04-25 | 2019-07-09 | 中冶焦耐(大连)工程技术有限公司 | A kind of asphalt reservior lever buoy level meter |
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