CN219530569U - Gas distributor with back blowing and blowing type liquid level meter - Google Patents
Gas distributor with back blowing and blowing type liquid level meter Download PDFInfo
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- CN219530569U CN219530569U CN202320396870.XU CN202320396870U CN219530569U CN 219530569 U CN219530569 U CN 219530569U CN 202320396870 U CN202320396870 U CN 202320396870U CN 219530569 U CN219530569 U CN 219530569U
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Abstract
The utility model provides a gas distributor with back blowing and a blowing type liquid level meter, wherein the gas distributor comprises a gas distribution base, a pressure guiding joint, a back blowing joint and a valve assembly, a pressure guiding pipeline and a back blowing pipeline are arranged in the gas distribution base, the pressure guiding pipeline comprises a positive pressure guiding branch and a negative pressure guiding branch, and a rotor flowmeter is respectively arranged on the positive pressure guiding branch and the negative pressure guiding branch; the back-blowing pipeline comprises a positive back-blowing branch and a negative back-blowing branch; the valve assembly comprises a first stop valve and a second stop valve which are respectively arranged on the positive pressure leading branch and the negative pressure leading branch, and a third stop valve and a fourth stop valve which are respectively arranged on the positive blowing branch and the negative back blowing branch. Through integrating the blowback pipeline to gas distributor in, need not dispose the blowback pipeline in addition, simple structure, the pipeline interface is less, has reduced the risk of revealing, has improved the reliability, and occupation space is less after the installation is accomplished, and the mounted position flexibility is big, and is little to the field space requirement.
Description
Technical Field
The utility model relates to the technical field of liquid level measurement, in particular to a gas distributor with back blowing and a blowing type liquid level meter.
Background
In the industries of polyester chemical fiber, petrochemical industry and the like, a blowing type liquid level meter is generally required to measure the liquid level in a reaction kettle. The blowing type liquid level meter is understood to be a non-contact liquid level measuring instrument, and can measure materials in an open or closed container. The gas distributor is used as an important component of the blowing type liquid level meter, and the gas distributor leads the internal pressure value of the reaction kettle to a differential pressure transmitter through a positive/negative pressure leading pipe for measurement, then converts the internal pressure value into flow and finally sends a signal to a control system.
The Chinese patent (publication No. CN 216116243U) discloses a blowing type liquid level meter, and specifically discloses a blowing type liquid level meter which further comprises a back blowing pipeline, wherein one end of the back blowing pipeline is communicated with an air inlet pipe and an air source interface through a first three-way valve, the other end of the back blowing pipeline is divided into two dredging branches through a second three-way valve and then is respectively communicated with a positive pressure side blowing pipeline and a negative pressure side blowing pipeline, and the back blowing pipeline can be used for dredging the blocked pipeline. However, the blowback pipeline structure is complex, a plurality of pipelines are required to be additionally arranged, the leakage risk is increased, a certain space is required to be occupied in installation, and the flexibility is insufficient.
Disclosure of Invention
The utility model aims to provide a gas distributor with back blowing and a blowing type liquid level meter, which at least solve one of the technical problems of the blowing type liquid level meter in the prior art.
In order to achieve the above purpose, the utility model provides a gas distributor with back blowing, comprising a gas distribution base, a pressure guiding joint, a back blowing joint and a valve assembly, wherein the pressure guiding pipeline and the back blowing pipeline are arranged in the gas distribution base, and the pressure guiding joint and the back blowing joint are used for being communicated with a gas source;
the pressure guiding pipeline comprises a positive pressure guiding branch and a negative pressure guiding branch, the input end of the positive pressure guiding branch and the input end of the negative pressure guiding branch are communicated with the pressure guiding joint, the output end of the positive pressure guiding branch and the output end of the negative pressure guiding branch are respectively communicated with a positive pressure side pressure guiding pipe and a negative pressure side pressure guiding pipe, and a rotor flowmeter is respectively arranged on the positive pressure guiding branch and the negative pressure guiding branch;
the positive and negative pressure side pressure guiding pipes are respectively communicated with the positive and negative pressure side pressure guiding pipes;
the valve assembly comprises a first stop valve and a second stop valve which are respectively arranged on the positive pressure leading branch and the negative pressure leading branch, and a third stop valve and a fourth stop valve which are respectively arranged on the positive blowing branch and the negative back blowing branch.
Optionally, the gas distribution base is installed on a differential pressure transmitter, and the output end of the positive pressure leading branch and the output end of the negative pressure leading branch are respectively communicated with a positive pressure cavity and a negative pressure cavity of the differential pressure transmitter.
Optionally, the gas distribution base is welded with the pressure guiding joint and the blowback joint.
Optionally, the gas distribution base is in threaded connection with the pressure guiding joint and the blowback joint.
Optionally, the gas distributor further comprises a first pipeline and a second pipeline, the output end of the first pipeline is communicated with the pressure guiding joint, the output end of the second pipeline is communicated with the back blowing joint, and the input end of the first pipeline and the input end of the second pipeline are communicated with the gas source through a tee joint.
Optionally, the first pipeline is further provided with a pressure reducing valve and a one-way valve.
Optionally, the rotameter is located at the outer side of the gas distribution base and is connected to the positive pressure leading branch and the negative pressure leading branch through short pipes.
Optionally, the gas distribution base, the pressure guiding joint and the blowback joint are all made of stainless steel.
Based on the above, the utility model also provides a blowing type liquid level meter, which comprises a differential pressure transmitter, two rotameters, a positive pressure side pressure guiding pipe, a negative pressure side pressure guiding pipe and the gas distributor with back blowing, wherein a gas distribution base of the gas distributor is arranged on the differential pressure transmitter, and a positive pressure cavity and a negative pressure cavity of the differential pressure transmitter are respectively communicated with an output end of a positive pressure guiding branch and an output end of a negative pressure guiding branch.
Optionally, a ball valve is respectively arranged on the positive pressure side pressure guiding pipe and the negative pressure side pressure guiding pipe.
In the gas distributor with back blowing and the blowing type liquid level meter provided by the utility model, when liquid level measurement is needed, the first stop valve and the second stop valve are opened, the third stop valve and the fourth stop valve are closed, and at the moment, gas provided by a gas source enters the corresponding positive pressure side pressure guiding pipe and the corresponding negative pressure side pressure guiding pipe respectively after the flow rate is regulated by the rotor flowmeters on the positive pressure guiding branch and the negative pressure guiding branch; when blocking occurs and back blowing is carried out, the third stop valve and the fourth stop valve are opened, the first stop valve and the second stop valve are closed, and at the moment, gas provided by the gas source directly enters the corresponding positive pressure side pressure guiding pipe and the corresponding negative pressure side pressure guiding pipe through the positive and negative blowing branches and the negative back blowing branches.
Compared with the existing back-blowing structure, the back-blowing pipeline is integrated into the gas distributor, and no back-blowing pipeline is required to be additionally arranged, so that the structure is simple, the installation is time-saving and labor-saving, and the cost is saved. In addition, the pipeline interfaces are fewer, the leakage risk is reduced, the reliability is improved, the occupied space after the installation is completed is smaller, the flexibility of the installation position is high, and the requirement on the field space is small.
Drawings
Those of ordinary skill in the art will appreciate that the figures are provided for a better understanding of the present utility model and do not constitute any limitation on the scope of the present utility model. Wherein:
FIG. 1 is a schematic view of a back-blowing gas distributor according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a blowing-type liquid level gauge according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of a pressure guiding pipeline and a blowback pipeline according to an embodiment of the present utility model.
In the accompanying drawings:
1-a gas distribution base; 2-a pressure-guiding joint; 3-back blowing joint; 4-a positive pressure leading branch; 5-a negative pressure leading branch; 6, a positive pressure side pressure guiding pipe; 7-a negative pressure side pressure guiding pipe; 8-rotameter; 9-a forward and reverse blowing branch; 10-a negative blowback branch; 11-a first shut-off valve; 12-a second shut-off valve; 13-a third stop valve; 14-a fourth shut-off valve; 15-a differential pressure transmitter; 16-a first line; 17-a second line; 18-a three-way joint; 19-a pressure reducing valve; 20-a one-way valve; 21-ball valve;
100-gas distributor.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the utility model more apparent. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the utility model. For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure for the understanding and reading of the present disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, and any structural modifications, proportional changes, or dimensional adjustments, which may be made by the present disclosure, should fall within the scope of the present disclosure under the same or similar circumstances as the effects and objectives attained by the present utility model.
As used in this disclosure, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in this disclosure, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise. As used in this disclosure, the term "plurality" is generally employed in its sense including "at least one" unless the content clearly dictates otherwise. As used in this disclosure, the term "at least two" is generally employed in its sense including "two or more", unless the content clearly dictates otherwise. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" may include one or at least two such features, either explicitly or implicitly.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
FIG. 1 is a schematic view of a back-blowing gas distributor according to an embodiment of the present utility model; FIG. 2 is a schematic diagram of a blowing-type liquid level gauge according to an embodiment of the present utility model; fig. 3 is a schematic diagram of a pressure guiding pipeline and a blowback pipeline according to an embodiment of the present utility model.
Referring to fig. 1-3, the present embodiment provides a gas dispenser 100 with back blowing, which includes a gas dispensing base 1, a pressure guiding joint 2, a back blowing joint 3 and a valve assembly, wherein the pressure guiding pipeline and the back blowing pipeline are provided in the gas dispensing base 1, and the pressure guiding joint 2 and the back blowing joint 3 are used for communicating with a gas source;
the pressure guiding pipeline comprises a positive pressure guiding branch 4 and a negative pressure guiding branch 5, the input end of the positive pressure guiding branch 4 and the input end of the negative pressure guiding branch 5 are communicated with the pressure guiding joint 2, the output end of the positive pressure guiding branch 4 and the output end of the negative pressure guiding branch 5 are respectively communicated with a positive pressure side pressure guiding pipe 6 and a negative pressure side pressure guiding pipe 7, and a rotor flowmeter 8 is respectively arranged on the positive pressure guiding branch 4 and the negative pressure guiding branch 5;
the back-blowing pipeline comprises a positive back-blowing branch 9 and a negative back-blowing branch 10, the input end of the positive back-blowing branch 9 and the input end of the negative back-blowing branch 10 are both communicated with the back-blowing joint 3, and the output end of the positive back-blowing branch 9 and the output end of the negative back-blowing branch 10 are respectively communicated with the positive pressure side pressure guiding pipe 6 and the negative pressure side pressure guiding pipe 7;
the valve assembly comprises a first stop valve 11 and a second stop valve 12 which are respectively arranged on the positive pressure guiding branch 4 and the negative pressure guiding branch 5, and a third stop valve 13 and a fourth stop valve 14 which are respectively arranged on the positive blowing branch 9 and the negative blowback branch 10.
In this embodiment, the first stop valve 11 is used for controlling the on-off of the positive pressure guiding branch 4, the second stop valve 12 is used for controlling the on-off of the negative pressure guiding branch 5, the third stop valve 13 is used for controlling the on-off of the positive and negative blowing branch 9, and the fourth stop valve 14 is used for controlling the on-off of the negative back blowing branch 10.
When the liquid level measurement is required, the first stop valve 11 and the second stop valve 12 are opened, the third stop valve 13 and the fourth stop valve 14 are closed, and at the moment, the gas provided by the gas source enters the corresponding positive pressure side pressure guiding pipe 6 and the corresponding negative pressure side pressure guiding pipe 7 after the flow rate is regulated by the rotameters 8 on the positive pressure guiding branch 4 and the negative pressure guiding branch 5; when blocking occurs and blowback is performed, the third stop valve 13 and the fourth stop valve 14 are opened, the first stop valve 11 and the second stop valve 12 are closed, and at this time, the gas provided by the gas source directly enters the corresponding positive pressure side pressure guiding pipe 6 and the corresponding negative pressure side pressure guiding pipe 7 through the positive and negative blowing branch 9 and the negative blowback branch 10.
Compared with the existing back-blowing structure, the back-blowing pipeline is integrated into the gas distributor 100, and the back-blowing pipeline does not need to be additionally configured, so that the structure is simple, the installation is time-saving and labor-saving, and the cost is saved. In addition, the pipeline interfaces are fewer, the leakage risk is reduced, the reliability is improved, the occupied space after the installation is completed is smaller, the flexibility of the installation position is high, and the requirement on the field space is small.
Specifically, the gas distribution base 1 is installed on a differential pressure transmitter 15, and the output end of the positive pressure leading branch 4 and the output end of the negative pressure leading branch 5 are respectively communicated with a positive pressure cavity and a negative pressure cavity of the differential pressure transmitter 15; the rotameter 8 is located at the outer side of the gas distribution base 1 and is connected to the positive pressure leading branch 4 and the negative pressure leading branch 5 through short pipes.
In this embodiment, the input end and the output end of the positive pressure guiding branch 4 and the input end and the output end of the negative pressure guiding branch 5 may be designed into a cavity structure, the rotameter 8 includes a positive pressure side rotameter 8 and a negative pressure side rotameter 8, the inlet of the positive pressure side rotameter may be communicated with the input end of the positive pressure guiding branch 4 and the pressure guiding joint 2, the outlet of the positive pressure side rotameter may be communicated with the output end of the positive pressure guiding branch 4, the positive pressure cavity of the differential pressure transmitter 15 and the input end of the positive pressure guiding pipe 6, the inlet of the negative pressure side rotameter may be communicated with the input end of the negative pressure guiding branch 5 and the pressure guiding joint 2, and the outlet of the negative pressure side rotameter may be communicated with the output end of the negative pressure guiding branch 5, the negative pressure cavity of the differential pressure transmitter 15 and the input end of the negative pressure guiding pipe 7.
Alternatively, the gas distribution base 1 is welded with the pressure guiding joint 2 and the blowback joint 3. Alternatively, the gas distribution base 1 is screwed with the pressure guiding joint 2 and the blowback joint 3.
With continued reference to fig. 2, the gas distributor 100 further includes a first pipeline 16 and a second pipeline 17, wherein an output end of the first pipeline 16 is communicated with the pressure-guiding joint 2, an output end of the second pipeline 17 is communicated with the blowback joint 3, and an input end of the first pipeline 16 and an input end of the second pipeline 17 are communicated with the gas source through a three-way joint 18.
Preferably, the first pipeline 16 is further provided with a pressure reducing valve 19 and a one-way valve 20, the pressure reducing valve 19 is used for reducing pressure of the pressure-induced gas provided by the gas source, and the one-way valve 20 controls on and off of the first pipeline 16.
In this embodiment, the materials of the gas distribution base 1, the pressure guiding joint 2 and the blowback joint 3 are all stainless steel.
Based on this, in conjunction with fig. 2, this embodiment further provides a blowing type liquid level meter, which includes a differential pressure transmitter 15, two rotameters 8, a positive pressure side pressure guiding pipe 6, a negative pressure side pressure guiding pipe 7, and the gas distributor 100 with blowback as described above, where the gas distribution base 1 of the gas distributor 100 is installed on the differential pressure transmitter 15, and the positive pressure cavity and the negative pressure cavity of the differential pressure transmitter 15 are respectively communicated with the output end of the positive pressure guiding branch 4 and the output end of the negative pressure guiding branch 5.
Preferably, a ball valve 21 is respectively disposed on the positive pressure side pressure guiding pipe 6 and the negative pressure side pressure guiding pipe 7 for controlling the connection and disconnection of the positive pressure side pressure guiding pipe 6 and the negative pressure side pressure guiding pipe 7.
In summary, compared with the existing blowback structure, the embodiment of the utility model integrates the blowback pipeline into the gas distributor 100, does not need to additionally configure a blowback pipeline, has simple structure, saves time and labor in installation and saves cost. In addition, the pipeline interfaces are fewer, the leakage risk is reduced, the reliability is improved, the occupied space after the installation is completed is smaller, the flexibility of the installation position is high, and the requirement on the field space is small.
The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the present utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, the present utility model is intended to include such modifications and alterations insofar as they come within the scope of the utility model or the equivalents thereof.
Claims (10)
1. The gas distributor with back blowing is characterized by comprising a gas distribution base, a pressure guiding joint, a back blowing joint and a valve assembly, wherein the pressure guiding pipeline and the back blowing pipeline are arranged in the gas distribution base, and the pressure guiding joint and the back blowing joint are used for being communicated with a gas source;
the pressure guiding pipeline comprises a positive pressure guiding branch and a negative pressure guiding branch, the input end of the positive pressure guiding branch and the input end of the negative pressure guiding branch are communicated with the pressure guiding joint, the output end of the positive pressure guiding branch and the output end of the negative pressure guiding branch are respectively communicated with a positive pressure side pressure guiding pipe and a negative pressure side pressure guiding pipe, and a rotor flowmeter is respectively arranged on the positive pressure guiding branch and the negative pressure guiding branch;
the positive and negative pressure side pressure guiding pipes are respectively communicated with the positive and negative pressure side pressure guiding pipes;
the valve assembly comprises a first stop valve and a second stop valve which are respectively arranged on the positive pressure leading branch and the negative pressure leading branch, and a third stop valve and a fourth stop valve which are respectively arranged on the positive blowing branch and the negative back blowing branch.
2. The gas distributor with blowback according to claim 1, wherein the gas distribution base is mounted on a differential pressure transmitter, and the output end of the positive pressure leading branch and the output end of the negative pressure leading branch are also respectively communicated with a positive pressure cavity and a negative pressure cavity of the differential pressure transmitter.
3. The back-blowing gas distributor according to claim 1, wherein the gas distribution base is welded to the pressure introduction joint and the back-blowing joint.
4. The blowback gas distributor of claim 1, wherein the gas distribution base is threadably connected to the pressure inducing fitting and the blowback fitting.
5. The gas distributor with blowback according to claim 1, further comprising a first pipeline and a second pipeline, wherein an output end of the first pipeline is communicated with the pressure guiding joint, an output end of the second pipeline is communicated with the blowback joint, and an input end of the first pipeline and an input end of the second pipeline are communicated with the gas source through a three-way joint.
6. The blowback gas distributor according to claim 5, wherein the first pipe is further provided with a pressure reducing valve and a check valve.
7. The back-blowing gas distributor according to claim 1, wherein the rotameter is located outside the gas distribution base and is connected to the positive pressure branch and the negative pressure branch through short pipes.
8. The gas distributor with blowback according to claim 1, wherein the gas distribution base, the pressure introduction joint and the blowback joint are all made of stainless steel.
9. The blowing type liquid level meter is characterized by comprising a differential pressure transmitter, two rotameters, a positive pressure side pressure guiding pipe, a negative pressure side pressure guiding pipe and the gas distributor with back blowing according to any one of claims 1-8, wherein a gas distribution base of the gas distributor is arranged on the differential pressure transmitter, and a positive pressure cavity and a negative pressure cavity of the differential pressure transmitter are respectively communicated with an output end of a positive pressure guiding branch and an output end of a negative pressure guiding branch.
10. The blowing-type liquid level gauge as claimed in claim 9, wherein a ball valve is provided on each of the positive pressure side pressure introduction pipe and the negative pressure side pressure introduction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320396870.XU CN219530569U (en) | 2023-03-06 | 2023-03-06 | Gas distributor with back blowing and blowing type liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320396870.XU CN219530569U (en) | 2023-03-06 | 2023-03-06 | Gas distributor with back blowing and blowing type liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219530569U true CN219530569U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320396870.XU Active CN219530569U (en) | 2023-03-06 | 2023-03-06 | Gas distributor with back blowing and blowing type liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219530569U (en) |
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2023
- 2023-03-06 CN CN202320396870.XU patent/CN219530569U/en active Active
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