CN212482629U - Air blowing type liquid level meter - Google Patents
Air blowing type liquid level meter Download PDFInfo
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- CN212482629U CN212482629U CN202021630929.XU CN202021630929U CN212482629U CN 212482629 U CN212482629 U CN 212482629U CN 202021630929 U CN202021630929 U CN 202021630929U CN 212482629 U CN212482629 U CN 212482629U
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Abstract
The utility model provides an air blowing type liquid level meter, which comprises a pressure reducing valve, an air flow distributor, a differential pressure transmitter, a first sensor, a second sensor, a positive pressure side rotary joint, a negative pressure side rotary joint and a first ball valve; the first sensor comprises a first positive pressure side pressure guide pipe and a first negative pressure side pressure guide pipe; the second sensor comprises a second positive pressure side pressure pipe and a second negative pressure side pressure pipe; the positive pressure side swivel joint is respectively communicated with a first air outlet of the air flow distributor, a first positive pressure side pressure guide pipe of the first sensor and a second positive pressure side pressure guide pipe of the second sensor; the negative pressure side swivel joint is respectively communicated with a second air outlet of the airflow distributor, a first negative pressure side pressure pipe of the first sensor and a second negative pressure side pressure pipe of the second sensor. This scheme includes two sensors, and first sensor can be used for measuring the liquid level, and the second sensor is reserve, when first sensor breaks down, can launch reserve second sensor, need not stop production immediately like this, has improved production efficiency.
Description
Technical Field
The utility model relates to a level measurement field, in particular to air blowing type level gauge.
Background
In the industries of polyester chemical fiber, petrochemical industry and the like, an air blowing type liquid level meter is generally required to measure the liquid level in a reaction kettle. The structure of the existing air blowing type liquid level meter is generally shown in fig. 1, and mainly comprises a pressure reducing valve 1, an air flow distributor 2, a differential pressure transmitter 3 and a sensor 4, wherein the sensor comprises an anti-blocking poking needle 41, a vacuum plug valve 42, vacuum sealing filler, a heat tracing jacket 43, a mounting flange 44, a positive pressure side pressure pipe 45 and a negative pressure side pressure pipe 46; a ball valve is arranged on the positive pressure side pressure guide pipe 45; the sensor 4 is welded on the reaction kettle through a mounting flange 44; the extension length of the positive pressure side pressure conduction pipe 45 in the reaction kettle can be extended by welding and the like according to the field requirement.
However, the positive pressure side pressure conduction pipe 45 below the mounting flange 44 is easily blocked by materials in the reaction kettle, so that the liquid level of the reaction kettle is out of control, and the product quality is influenced; if other chain equipment is communicated with the reaction kettle, the other chain equipment can be damaged, and the immeasurable loss is caused. Therefore, when the positive pressure side pressure pipe 45 is clogged, the production is immediately stopped, and the air blowing type liquid level gauge is repaired or replaced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air blowing type liquid level meter to solve the technical problem that the production will stop immediately when the malleation side pressure pipe of current air blowing type liquid level meter takes place to block up.
In order to solve the technical problem, the utility model provides an air-blowing liquid level meter, which comprises a pressure reducing valve, an air flow distributor, a differential pressure transmitter, a first sensor, a second sensor, a positive pressure side rotary joint, a negative pressure side rotary joint and a first ball valve; the air flow distributor comprises an air inlet, a first air outlet and a second air outlet which are communicated with each other; the differential pressure transmitter comprises a high pressure port and a low pressure port; the first sensor comprises a first positive pressure side pressure guide pipe and a first negative pressure side pressure guide pipe; the second sensor comprises a second positive pressure side pressure pipe and a second negative pressure side pressure pipe; the second positive pressure side pressure guide pipe comprises a first port of the second positive pressure side pressure guide pipe, and the first port of the second positive pressure side pressure guide pipe is used for being communicated with a high-pressure port of the differential pressure transmitter;
one end of the pressure reducing valve is communicated with an air source, and the other end of the pressure reducing valve is communicated with an air inlet of the air flow distributor;
a first air outlet of the air flow distributor is communicated with a high-pressure port of the differential pressure transmitter, and a second air outlet of the air flow distributor is communicated with a low-pressure port of the differential pressure transmitter;
the positive pressure side swivel joint is respectively communicated with a first air outlet of the airflow distributor, a first positive pressure side pressure pipe of the first sensor and a second positive pressure side pressure pipe of the second sensor;
the negative pressure side swivel joint is respectively communicated with a second air outlet of the airflow distributor, a first negative pressure side pressure pipe of the first sensor and a second negative pressure side pressure pipe of the second sensor;
the first ball valve is arranged between the positive pressure side swivel joint and the first port of the second positive pressure side pressure conduction pipe.
Optionally, a second ball valve is arranged between the positive pressure side swivel joint and a first positive pressure side pressure pipe of the first sensor; and a third ball valve is arranged between the positive pressure side rotary joint and the first air outlet of the air flow distributor.
Optionally, a fourth ball valve is arranged between the negative pressure side swivel joint and a second negative pressure side pressure pipe of the second sensor; a fifth ball valve is arranged between the negative pressure side swivel joint and a first negative pressure side pressure guide pipe of the first sensor; and a sixth ball valve is arranged between the negative pressure side rotary joint and the second air outlet of the air flow distributor.
Optionally, the positive pressure side rotary joint and the negative pressure side rotary joint are both three-way cutting sleeves.
Optionally, the length of the first positive pressure side pressure pipe of the first sensor is equal to the length of the second positive pressure side pressure pipe of the second sensor.
Optionally, the length of the first negative pressure side pressure pipe of the first sensor is equal to the length of the second negative pressure side pressure pipe of the second sensor.
Optionally, the first sensor further comprises a first anti-blocking poking needle, a first vacuum plug valve, a first vacuum sealing filler, a first heat tracing jacket and a first mounting flange;
the first positive-pressure side pressure guide pipe comprises a second port of the first positive-pressure side pressure guide pipe, and the inner diameter of the second port of the first positive-pressure side pressure guide pipe is larger than the outer diameter of the first anti-blocking poking needle;
the first anti-blocking poking needle is used for dredging the first positive pressure side pressure pipe;
the first vacuum plug valve is arranged at a second port of the first positive pressure side pressure pipe;
the first vacuum sealing filler is arranged between the first vacuum plug valve and the second port of the first positive pressure side pressure pipe to form a vacuum sealing layer;
the first heat tracing clamping sleeve is arranged between the first vacuum plug valve and the first mounting flange.
Optionally, the second sensor further comprises a second anti-blocking poking needle, a second vacuum plug valve, a second vacuum sealing filler, a second heat tracing jacket and a second mounting flange;
the second positive pressure side pressure pipe also comprises a second port of the second positive pressure side pressure pipe, and the inner diameter of the second port of the second positive pressure side pressure pipe is larger than the outer diameter of the second anti-blocking poking needle;
the second anti-blocking poking needle is used for dredging the second positive pressure side pressure pipe;
the second vacuum plug valve is arranged at a second port of the second positive pressure side pressure pipe;
the second vacuum sealing filler is arranged between the second vacuum plug valve and the second port of the second positive pressure side pressure pipe to form a vacuum sealing layer;
the second heat tracing clamping sleeve is arranged between the second vacuum plug valve and the second mounting flange.
The utility model provides a pair of air blowing type level gauge includes two sensors, and first sensor can be used for measuring the liquid level, and the second sensor is reserve, when first sensor breaks down, can launch reserve second sensor, need not stop production immediately like this, has improved production efficiency.
Drawings
FIG. 1 is a schematic diagram of a prior art air-blown level gauge;
fig. 2 is a schematic structural diagram of an air-blowing liquid level meter according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the air blowing type liquid level meter installed on the reaction kettle according to an embodiment of the present invention.
[ reference numerals are described below ]:
the device comprises a pressure reducing valve-1, an air flow distributor-2, a differential pressure transmitter-3 and a sensor-4;
an anti-blocking poking needle-41, a vacuum plug valve-42, a heat tracing jacket-43, a mounting flange-44, a positive pressure side pressure pipe-45 and a negative pressure side pressure pipe-46;
a pressure reducing valve-11, an air flow distributor-12, a differential pressure transmitter-13, a first sensor-14, a second sensor-15, a positive pressure side rotary joint-16, a negative pressure side rotary joint-17, a first ball valve-18, a second ball valve-19, a third ball valve-20, a fourth ball valve-21, a fifth ball valve-22, a sixth ball valve-23 and a 24-reaction kettle;
a first positive pressure side pressure pipe-141, a first negative pressure side pressure pipe-142;
a second positive pressure side pressure pipe-151, a second negative pressure side pressure pipe-152, a second anti-blocking poking needle-153, a second vacuum plug valve-154, a second heat tracing jacket-155 and a second mounting flange-156;
a first port-1511 of the second positive pressure side pressure pipe, and a second port-1512 of the second positive pressure side pressure pipe.
Detailed Description
In order to make the objects, advantages and features of the present invention clearer, the following description will be made in detail with reference to the accompanying drawings. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 2, the present embodiment provides an air-blown level meter, which includes a pressure reducing valve 11, an air flow distributor 12, a differential pressure transmitter 13, a first sensor 14, a second sensor 15, a positive pressure side swivel joint 16, a negative pressure side swivel joint 17, and a first ball valve 18; the air flow distributor 12 comprises an air inlet, a first air outlet and a second air outlet which are communicated with each other; the differential pressure transmitter 13 includes a high pressure port and a low pressure port; the first sensor 14 includes a first positive-pressure side pressure pipe 141 and a first negative-pressure side pressure pipe 142; the second sensor 15 includes a second positive pressure side pressure pipe 151 and a second negative pressure side pressure pipe 152; the second positive pressure side pressure guide pipe 151 comprises a first port 1511 of the second positive pressure side pressure guide pipe, and the first port 1511 of the second positive pressure side pressure guide pipe is used for being communicated with a high pressure port of the differential pressure transmitter 13; one end of the pressure reducing valve 11 is communicated with an air source, and the other end of the pressure reducing valve is communicated with an air inlet of the air flow distributor 12; a first air outlet of the air flow distributor 12 is communicated with a high-pressure port of the differential pressure transmitter 13, and a second air outlet of the air flow distributor 12 is communicated with a low-pressure port of the differential pressure transmitter 13; the positive pressure side swivel 16 is respectively communicated with a first air outlet of the air flow distributor 12, a first positive pressure side pressure guide pipe 141 of the first sensor 14 and a second positive pressure side pressure guide pipe 151 of the second sensor 15; the negative pressure side rotary joint 17 is respectively communicated with the second air outlet of the air flow distributor 12, the first negative pressure side pressure guide pipe 142 of the first sensor 14 and the second negative pressure side pressure guide pipe 152 of the second sensor 15; the first ball valve 18 is disposed between the positive pressure side adaptor 16 and the first port 1511 of the second positive pressure side pressure pipe.
The air blowing type liquid level meter provided by the embodiment comprises two sensors, wherein the first sensor 14 can be used for measuring the liquid level, the second sensor 15 is standby, and when the first sensor 14 breaks down, the standby second sensor 15 can be started, so that the production is not required to be stopped immediately, and the production efficiency is improved. When the second sensor 15 is in standby, the first ball valve 18 needs to be closed, and the air pressure existing in the second positive pressure side pressure guide pipe 151 of the second sensor 15 can prevent the material from returning to the upper part of the second positive pressure side pressure guide pipe; when activated, the first ball valve 18 needs to be opened.
In consideration of the cost of the sensors, the air-blowing liquid level meter is generally provided with only two sensors; more than three sensors may be provided with a single air-blown level gauge, regardless of the cost of the sensors or to avoid production stoppages.
Optionally, as shown in fig. 2, a second ball valve 19 is disposed between the positive pressure side swivel 16 and the first positive pressure side pressure pipe 141 of the first sensor 14; a third ball valve 20 is arranged between the positive pressure side swivel joint 16 and the first air outlet of the air flow distributor 12.
The second ball valve 19 and the third ball valve 20 are provided, so that the pipeline for connection, the differential pressure transmitter 13 or the first sensor 14 can be repaired or replaced conveniently.
Optionally, as shown in fig. 2, a fourth ball valve 21 is disposed between the negative pressure side adaptor 17 and the second negative pressure side pressure pipe 152 of the second sensor 15; a fifth ball valve 22 is arranged between the negative pressure side swivel joint 17 and the first negative pressure side pressure guide pipe 142 of the first sensor 14; a sixth ball valve 23 is arranged between the negative pressure side rotary joint 17 and the second air outlet of the air flow distributor 12.
The fourth ball valve 21, the fifth ball valve 22 and the sixth ball valve 23 are provided, so that the pipeline for connection, the differential pressure transmitter 13, the first sensor 14 or the second sensor 15 can be conveniently overhauled or replaced.
Optionally, as shown in fig. 2, the positive pressure side swivel joint 16 and the negative pressure side swivel joint 17 are both three-way ferrules. The three-way cutting sleeve is a common pipeline joint and can be conveniently connected with each section of pipeline.
Alternatively, as shown in fig. 2 and 3, the length of the first positive pressure side pressure pipe 141 of the first sensor 14 and the length of the second positive pressure side pressure pipe 151 of the second sensor 15 are equal. The arrangement can ensure that the depth values of the liquid inserted into the reaction kettle 24 by the first positive pressure side pressure guide pipe 141 and the second positive pressure side pressure guide pipe 151 are equal, and the numerical values of the two liquid level meters are equal or close to each other during debugging and can be used as comparison parameters for debugging; during use, the measured values of the two liquid level meters can also be compared and referenced.
Alternatively, as shown in fig. 2, the length of the first negative pressure side pressure pipe 142 of the first sensor 14 and the length of the second negative pressure side pressure pipe 152 of the second sensor 15 are equal. The two sensors are set to be the same in structure and size, and standardized production is facilitated.
Optionally, as shown in fig. 2, the first sensor 14 further includes a first anti-blocking pin, a first vacuum plug valve, a first vacuum sealing filler, a first heat tracing jacket, and a first mounting flange; the first positive pressure side pressure guide pipe 141 comprises a second port of the first positive pressure side pressure guide pipe, and the inner diameter of the second port of the first positive pressure side pressure guide pipe is larger than the outer diameter of the first anti-blocking poking needle; the first anti-blocking poking needle is used for dredging the first positive pressure side pressure pipe 141; the first vacuum plug valve is arranged at a second port of the first positive pressure side pressure pipe 141; the first vacuum sealing packing is arranged between the first vacuum plug valve and the second port of the first positive pressure side pressure pipe 141 to form a vacuum sealing layer; the first heat tracing clamping sleeve is arranged between the first vacuum plug valve and the first mounting flange. A first positive pressure side pressure pipe 141 can be dredged by arranging a first anti-blocking poking needle; the first heat tracing jacket is provided to prevent the material in the first positive pressure side pressure pipe 141 from being condensed.
Optionally, as shown in fig. 2, the second sensor 15 further includes a second anti-blocking poking needle 153, a second vacuum plug valve 154, a second vacuum sealing filler, a second heat tracing jacket 155 and a second mounting flange 156; the second positive pressure side pressure guiding pipe 15 further comprises a second port 1512 of the second positive pressure side pressure guiding pipe, and the inner diameter of the second port 1512 of the second positive pressure side pressure guiding pipe is larger than the outer diameter of the second anti-blocking poking needle 153; the second anti-blocking poking needle 153 is used for dredging the second positive pressure side pressure pipe 151; the second vacuum plug valve 154 is arranged at a second port 1512 of the second positive pressure side pressure pipe; the second vacuum sealing packing is disposed between the second vacuum stopcock 154 and the second port 1512 of the second positive pressure side conduit to form a vacuum sealing layer; the second heat trace jacket 155 is disposed between the second vacuum stopcock valve 154 and the second mounting flange 156. A second anti-blocking poking needle 153 is arranged to dredge the second positive pressure side pressure pipe 151; the second heat tracing jacket 155 is provided to prevent the material in the second positive pressure side pressure pipe 151 from being condensed.
To sum up, the utility model provides a pair of air blowing type level gauge includes two sensors, and first sensor 14 can be used for measuring the liquid level, and second sensor 15 is reserve, when first sensor 14 breaks down, can launch reserve second sensor 15, need not stop production immediately like this, has improved production efficiency.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the claims of the present invention.
Claims (8)
1. An air blowing type liquid level meter is characterized by comprising a pressure reducing valve, an air flow distributor, a differential pressure transmitter, a first sensor, a second sensor, a positive pressure side rotary joint, a negative pressure side rotary joint and a first ball valve; the air flow distributor comprises an air inlet, a first air outlet and a second air outlet which are communicated with each other; the differential pressure transmitter comprises a high pressure port and a low pressure port; the first sensor comprises a first positive pressure side pressure guide pipe and a first negative pressure side pressure guide pipe; the second sensor comprises a second positive pressure side pressure pipe and a second negative pressure side pressure pipe; the second positive pressure side pressure guide pipe comprises a first port of the second positive pressure side pressure guide pipe, and the first port of the second positive pressure side pressure guide pipe is used for being communicated with a high-pressure port of the differential pressure transmitter;
one end of the pressure reducing valve is communicated with an air source, and the other end of the pressure reducing valve is communicated with an air inlet of the air flow distributor;
a first air outlet of the air flow distributor is communicated with a high-pressure port of the differential pressure transmitter, and a second air outlet of the air flow distributor is communicated with a low-pressure port of the differential pressure transmitter;
the positive pressure side swivel joint is respectively communicated with a first air outlet of the airflow distributor, a first positive pressure side pressure pipe of the first sensor and a second positive pressure side pressure pipe of the second sensor;
the negative pressure side swivel joint is respectively communicated with a second air outlet of the airflow distributor, a first negative pressure side pressure pipe of the first sensor and a second negative pressure side pressure pipe of the second sensor;
the first ball valve is arranged between the positive pressure side swivel joint and the first port of the second positive pressure side pressure conduction pipe.
2. An air blowing type liquid level meter according to claim 1, wherein a second ball valve is arranged between the positive pressure side swivel joint and the first positive pressure side pressure pipe of the first sensor; and a third ball valve is arranged between the positive pressure side rotary joint and the first air outlet of the air flow distributor.
3. An air blowing type liquid level meter according to claim 1, wherein a fourth ball valve is arranged between the negative pressure side swivel joint and a second negative pressure side pressure pipe of the second sensor; a fifth ball valve is arranged between the negative pressure side swivel joint and a first negative pressure side pressure guide pipe of the first sensor; and a sixth ball valve is arranged between the negative pressure side rotary joint and the second air outlet of the air flow distributor.
4. An air-blown liquid level meter according to claim 1, wherein the positive pressure side swivel joint and the negative pressure side swivel joint are both three-way ferrules.
5. An air-blown liquid level meter according to claim 1, wherein the length of the first positive pressure side pressure pipe of the first sensor is equal to the length of the second positive pressure side pressure pipe of the second sensor.
6. An air-blown liquid level meter according to claim 5, wherein the length of the first negative pressure side pressure pipe of the first sensor is equal to the length of the second negative pressure side pressure pipe of the second sensor.
7. The air-blown liquid level meter according to claim 1, wherein the first sensor further comprises a first anti-blocking poking needle, a first vacuum plug valve, a first vacuum sealing filler, a first heat tracing jacket and a first mounting flange;
the first positive-pressure side pressure guide pipe comprises a second port of the first positive-pressure side pressure guide pipe, and the inner diameter of the second port of the first positive-pressure side pressure guide pipe is larger than the outer diameter of the first anti-blocking poking needle;
the first anti-blocking poking needle is used for dredging the first positive pressure side pressure pipe;
the first vacuum plug valve is arranged at a second port of the first positive pressure side pressure pipe;
the first vacuum sealing filler is arranged between the first vacuum plug valve and the second port of the first positive pressure side pressure pipe to form a vacuum sealing layer;
the first heat tracing clamping sleeve is arranged between the first vacuum plug valve and the first mounting flange.
8. The air-blown liquid level meter according to claim 1, wherein the second sensor further comprises a second anti-blocking poking needle, a second vacuum plug valve, a second vacuum sealing filler, a second heat tracing jacket and a second mounting flange;
the second positive pressure side pressure pipe also comprises a second port of the second positive pressure side pressure pipe, and the inner diameter of the second port of the second positive pressure side pressure pipe is larger than the outer diameter of the second anti-blocking poking needle;
the second anti-blocking poking needle is used for dredging the second positive pressure side pressure pipe;
the second vacuum plug valve is arranged at a second port of the second positive pressure side pressure pipe;
the second vacuum sealing filler is arranged between the second vacuum plug valve and the second port of the second positive pressure side pressure pipe to form a vacuum sealing layer;
the second heat tracing clamping sleeve is arranged between the second vacuum plug valve and the second mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021630929.XU CN212482629U (en) | 2020-08-07 | 2020-08-07 | Air blowing type liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021630929.XU CN212482629U (en) | 2020-08-07 | 2020-08-07 | Air blowing type liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212482629U true CN212482629U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021630929.XU Active CN212482629U (en) | 2020-08-07 | 2020-08-07 | Air blowing type liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212482629U (en) |
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2020
- 2020-08-07 CN CN202021630929.XU patent/CN212482629U/en active Active
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