CN220230787U - Differential pressure type liquid level meter - Google Patents
Differential pressure type liquid level meter Download PDFInfo
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- CN220230787U CN220230787U CN202321416930.6U CN202321416930U CN220230787U CN 220230787 U CN220230787 U CN 220230787U CN 202321416930 U CN202321416930 U CN 202321416930U CN 220230787 U CN220230787 U CN 220230787U
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- 239000007788 liquid Substances 0.000 title claims abstract description 152
- 238000004891 communication Methods 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000005484 gravity Effects 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 15
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The present disclosure relates to a differential pressure type liquid level meter for measuring a liquid level in an operation container, including a balance container, a gas portion communication pipe, a liquid portion communication pipe, and an overflow pipe, wherein the operation container and the balance container both have a steam side and a condensed water side opposite along a gravity direction, a first liquid level is formed in the operation container, a second liquid level is formed in the balance container, and the second liquid level is not lower than the first liquid level; the gas communication pipe is respectively communicated with the steam side of the operation container and the steam side of the balance container, one end of the liquid communication pipe is communicated with the condensed water side of the operation container, and the other end of the liquid communication pipe is communicated with the gas communication pipe; one end of the overflow pipe is communicated with the liquid part communication pipe, and the other end of the overflow pipe is communicated with the steam side of the balance container and is positioned below the gas part communication pipe so as to provide a circulation channel for liquid in the balance container to flow into the operation container. Through the technical scheme, the differential pressure type liquid level meter can improve the stability and accuracy of liquid level height measurement in the container to be measured.
Description
Technical Field
The present disclosure relates to the field of liquid level measurement technology, and in particular, to a differential pressure type liquid level gauge.
Background
The differential pressure type liquid level meter is widely used in equipment of a thermal power plant, such as a high-pressure heater, a low-pressure heater, a condenser, a deaerator and the like, and the general principle is to measure high-side and low-side water level differential pressure by using a water level-differential pressure conversion principle through a differential pressure transmitter so as to calculate the water level height in a container to be measured.
In the related art, a differential pressure type liquid level meter is usually installed on one side of a container to be measured, the position of the differential pressure type liquid level meter is higher than that of the container to be measured, the balance containers of the container to be measured and the liquid level meter are both provided with a condensed water side and a steam side, the steam sides of the container to be measured and the balance containers are communicated through a horizontal communication pipe, water vapor in an operation container flows into the balance containers through the communication pipe, condensed water in the balance containers overflows into the container to be measured through the communication pipe, and the water vapor inlet and the condensed water overflow share the same communication pipe and flow in opposite directions, so that the congestion of inlet steam and overflow is easy to occur in the communication pipe, even the phenomenon of full water of the balance containers is likely to occur, the liquid level on the side of the balance containers is not a known fixed value in practice, and the measured liquid level height accuracy in the container to be measured is also reduced.
Disclosure of Invention
It is an object of the present disclosure to provide a differential pressure type level gauge capable of improving the stability and accuracy of the level measurement in an operating vessel.
In order to achieve the above object, the present disclosure provides a differential pressure type liquid level gauge for measuring a liquid level in an operation container, the differential pressure type liquid level gauge including a balance container, a gas portion communication pipe, a liquid portion communication pipe, and an overflow pipe, the operation container and the balance container each having a vapor side and a condensed water side opposite in a gravitational direction, and a first liquid level being formed in the operation container, the balance container being formed with a second liquid level not lower than the first liquid level; the gas communication pipe is respectively communicated with the steam side of the operation container and the steam side of the balance container, one end of the liquid communication pipe is communicated with the condensed water side of the operation container, and the other end of the liquid communication pipe is communicated with the gas communication pipe; one end of the overflow pipe is communicated with the liquid part communication pipe, and the other end of the overflow pipe is communicated with the steam side of the balance container and is positioned below the gas part communication pipe so as to provide a circulation channel for liquid in the balance container to flow into the operation container.
Optionally, the overflow tube extends obliquely downward in a direction away from the equalization vessel.
Optionally, the included angle between the extending direction of the overflow pipe and the horizontal plane is 20-30 degrees.
Optionally, the liquid portion communicating pipe comprises a first pipe section and a second pipe section which are communicated, the first pipe section extends along the horizontal direction and is communicated with the operation container, the second pipe section extends along the vertical direction and is communicated with the gas portion communicating pipe, and a third liquid level which is equal to the first liquid level in the operation container is formed on the second pipe section.
Optionally, one end of the overflow pipe is communicated with the second pipe section and is located above the third liquid level, and the other end of the overflow pipe is located above the second liquid level.
Optionally, the gas communication pipe is horizontally arranged.
Optionally, the differential pressure type liquid level meter comprises a first measuring tube and a second measuring tube, wherein the first measuring tube is communicated with the condensed water side of the operation container, and the second measuring tube is communicated with the condensed water side of the balance container.
Optionally, the first measuring tube is communicated with the condensed water side of the operation container through the liquid portion communication tube, the liquid portion communication tube comprises a first tube section and a second tube section which are communicated, and the first measuring tube is communicated with the first tube section.
Optionally, the differential pressure type liquid level meter comprises a differential pressure sensor, and an anode and a cathode of the differential pressure sensor are respectively communicated with the first measuring tube and the second measuring tube, so as to be used for measuring the pressure of the position where the end part of the first measuring tube and the end part of the second measuring tube are located.
Optionally, the differential pressure type liquid level gauge comprises a first fluid valve, the first fluid valve is arranged on one side of the gas part communication pipe close to the operation container, and/or the differential pressure type liquid level gauge comprises a second fluid valve, and the second fluid valve is arranged on one side of the liquid part communication pipe close to the operation container.
Through above-mentioned technical scheme, in the differential pressure formula level gauge that this disclosure provided, be provided with the overflow pipe between operation container and the balance container, when the vapor in the operation container lets in the balance container through the air portion communication pipe and in the inside condensation of this balance container, in order to form relative steam side and condensation water side in the balance container, along with the comdenstion water content in this balance container increases, the comdenstion water can flow into the operation container through the overflow pipe in, that is to say, vapor circulates in the air portion communication pipe, the comdenstion water circulates in the overflow pipe, in this way, the production of the in-process convection phenomenon that the comdenstion water flows into the operation container from the air portion communication pipe when having avoided the vapor to flow into the balance container from the air portion communication pipe, further avoided because the inside liquid level of the balance container that blocks up and causes shakes or the full water condition takes place, the inaccurate problem of liquid level height measurement in the operation container.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic diagram of a differential pressure type level gauge in the related art;
FIG. 2 is a cross-sectional view of a differential pressure gauge provided in an exemplary embodiment of the present disclosure;
fig. 3 is a schematic perspective view of a differential pressure type level gauge according to an exemplary embodiment of the present disclosure.
Description of the reference numerals
1-running a container; 11-a first liquid level; 2-balancing a container; 21-a second level; 3-a gas part communicating pipe; 4-a liquid part communicating pipe; 41-a first pipe section; 42-a second pipe section; 43-a third level; 5-overflow pipe; 61-a first measuring tube; 62-a second measuring tube; 71-a first fluid valve; 72-a second fluid valve; 8-differential pressure sensor; 9-communicating pipe.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise specified, terms such as "upper and lower" and "upper and lower" are used to generally refer to "upper and lower" as opposed to each other in the direction of gravity when the corresponding component is in use, and "inner and outer" are used to generally refer to "inner and outer" with respect to the contour of the corresponding component itself. Furthermore, the terms "first," "second," and the like, as used in this disclosure, are used for distinguishing one element from another and not for sequential or importance. Furthermore, in the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.
It should be noted that, in use, the differential pressure type liquid level gauge in the related art, referring to fig. 1 (a), condensed water flows out from the communication pipe 9 while water vapor is introduced into the balance container 2 from the communication pipe 9, and convection is formed between the condensed water and the water vapor; referring to fig. 1 (b), condensed water is blocked by the introduced water vapor during the passage, resulting in an unstable height of the second liquid surface 21 in the balance container 2; referring to fig. 1 (c), condensed water is completely blocked by water vapor, the inside of the balance vessel 2 is filled with water, the actual height of the second liquid surface 21 is different from the known height, and both the cases shown in fig. 1 (b) and fig. 1 (c) above can cause inaccurate measurement of the height of the first liquid surface 11 in the operation vessel 1.
According to the specific embodiment provided by the present disclosure, referring to fig. 2 to 3, there is provided a differential pressure type liquid level meter for measuring a liquid level in an operation container 1, the differential pressure type liquid level meter including a balance container 2, a gas portion communication pipe 3, a liquid portion communication pipe 4, and an overflow pipe 5, the operation container 1 and the balance container 2 each having a vapor side and a condensed water side opposite in a gravitational direction, and a first liquid level 11 being formed in the operation container 1, the balance container 2 being formed with a second liquid level 21, the second liquid level 21 being not lower than the first liquid level 11; the gas communication pipe 3 is respectively communicated with the steam side of the operation container 1 and the steam side of the balance container 2, one end of the liquid communication pipe 4 is communicated with the condensed water side of the operation container 1, and the other end is communicated with the gas communication pipe 3; one end of the overflow pipe 5 is communicated with the liquid part communicating pipe 4, and the other end is communicated with the steam side of the balance container 2 and is positioned below the gas part communicating pipe 3 so as to provide a circulating channel for the liquid in the balance container 2 to flow into the operation container 1.
Through the above technical scheme, in the differential pressure type liquid level meter provided by the disclosure, the overflow pipe 5 is arranged between the operation container 1 and the balance container 2, when the water vapor in the operation container 1 is introduced into the balance container 2 through the air communication pipe 3 and is condensed in the balance container 2 to form the opposite vapor side and the condensed water side in the balance container 2, as the condensed water content in the balance container 2 increases, the condensed water can flow into the operation container 1 through the overflow pipe 5, that is, the water vapor flows in the air communication pipe 3, and the condensed water flows in the overflow pipe 5, so that the occurrence of convection phenomenon in the process that the condensed water flows into the operation container 1 from the air communication pipe 3 when the water vapor flows into the balance container 2 from the air communication pipe 3 is avoided, and the problem that the first liquid level 11 in the operation container 1 is inaccurate due to the shaking of the second liquid level 21 in the balance container 2 or the occurrence of full water in the balance container 2 caused by the internal congestion of the air communication pipe 3 is further avoided.
It should be noted that, the differential pressure type liquid level meter provided by the present disclosure further includes a differential pressure sensor 8, and the positive electrode and the negative electrode of the differential pressure sensor 8 may be respectively connected with the condensed water side of the operation container 1 and the condensed water side of the balance container 2, so as to be used for measuring the pressure of the condensed water side of the operation container 1 and the condensed water side of the balance container 2. In the use process, the liquid level in the balance container 2 is the height of one end, communicated with the balance container 2, of the overflow pipe 5 from the bottom of the balance container 2, and at the moment, the distance between the liquid level in the operation container 1 and a certain point on the condensed water side of the operation container 1, namely the height of the first liquid level 11 in the operation container 1, can be calculated only by measuring the liquid pressure on the condensed water side of the bottom of the balance container 2 and the liquid pressure on the condensed water side of the operation container 1. Further, since the present disclosure does not relate to improvements in the principles of differential pressure level gauges, only a brief description will be provided herein.
In the differential pressure type level gauge provided in the present disclosure, the overflow pipe 5 may be provided between the balance tank 2 and the operation tank 1 in any suitable manner, which is not particularly limited by the present disclosure. As an exemplary embodiment, referring to fig. 2, the overflow pipe 5 may extend obliquely downward in a direction away from the balance container 2, so that not only is condensed water in the balance container 2 facilitated to flow into the liquid portion communication pipe 4 through the overflow pipe 5, but also a backflow of condensed water or the like can be avoided. In other embodiments, the overflow pipe 5 may be disposed horizontally, and the purpose of providing a passage for the condensed water to flow into the operation container 1 is also achieved, which is not particularly limited by the present disclosure.
The angle between the overflow pipe 5 and the horizontal direction may be configured as any suitable angle according to practical situations, and as an exemplary embodiment, referring to fig. 2, the angle between the extending direction of the overflow pipe 5 and the horizontal plane provided in the disclosure may be 20 ° to 30 °, for example, may be 21 °, 22 °, 25 °, 27 °, 29 °, and the like, which is not limited in particular in the disclosure.
In the differential pressure type liquid level gauge provided in the present disclosure, the liquid portion communication pipe 4 may be constructed in any suitable shape, which is not particularly limited in the present disclosure. As an exemplary embodiment, referring to fig. 2, the liquid portion communication pipe 4 may include a first pipe section 41 and a second pipe section 42 which are communicated, the first pipe section 41 may extend in a horizontal direction and communicate with the operation container 1, the second pipe section 42 may extend in a vertical direction and communicate with the operation container 1, and the second pipe section 42 is formed with a third liquid surface 43 which is equal to the first liquid surface 11 in the operation container 1, so that when it is necessary to measure the hydraulic pressure at a certain point in the operation container 1 on the condensed water side, only the hydraulic pressure in the first pipe section 41 extending horizontally is measured, on the other hand, the second pipe section 42 of the liquid portion communication pipe 4 communicates with the gas portion communication pipe 3 and the overflow pipe 5, whereby, when the water vapor circulates in the gas portion communication pipe 3 and the condensed condition occurs in the gas portion communication pipe 3, the condensed water can flow into the second pipe section 42 of the liquid portion communication pipe 4 and then merge with the liquid in the operation container 1, and when the second liquid surface 21 in the balance container 2 reaches a certain height, the second pipe section 42 can enter the second liquid communication pipe section 4 to ensure stable liquid level in the operation container 1.
In other embodiments, the liquid communication pipe 4 may also include only a first pipe section 41 extending horizontally, where one end of the first pipe section 41 is led into the condensate side of the operation container 1, and the other end of the first pipe section is directly connected to the overflow pipe 5, so that the condensate in the balancing container 2 can flow from the overflow pipe 5 into the liquid communication pipe 4, and then is combined with the condensate in the operation container 1, which is not particularly limited in this disclosure.
In the differential pressure type liquid level gauge provided in the present disclosure, the overflow pipe 5 may be disposed between the liquid portion communication pipe 4 and the balance container 2 in any suitable manner, which is not particularly limited by the present disclosure. As an exemplary embodiment, referring to fig. 2, one end of the overflow pipe 5 may be connected to the second pipe section 42 and located above the third liquid level 43, and the other end of the overflow pipe 5 may be located above the second liquid level 21, so that when the condensate content in the balance vessel 2 reaches a certain level, the condensate can enter the liquid portion communication pipe 4 through the overflow pipe 5, that is, the second liquid level 21 is always located below the end of the overflow pipe 5 connected to the balance vessel 2, and the height of the second liquid level 21 is the distance between the bottom of the balance vessel 2 and the overflow pipe 5, whereby only the hydraulic pressure of the condensate side in the balance vessel 2 and the hydraulic pressure of the condensate side in the operation vessel 1 need to be measured, and the liquid level in the operation vessel 1 can be obtained by simple calculation.
In the differential pressure type liquid level gauge provided in the present disclosure, the gas communication pipe 3 may be provided between the balance tank 2 and the operation tank 1 in any suitable manner, and the present disclosure is not limited thereto in particular. As an exemplary embodiment, referring to fig. 2, a gas communication pipe 3 may be horizontally provided between the operation container 1 and the balance container 2 for providing a communication passage for water vapor to flow into the balance container 2. In other embodiments, the gas communication pipe 3 may also extend downward from the operation container 1 or may extend downward from the balance container 2, so as to provide a flow channel for water vapor flowing into the balance container 2, which is not particularly limited in this disclosure.
In the differential pressure type liquid level gauge provided in the present disclosure, the hydraulic pressure of the condensed water side of both the operation container 1 and the balance container 2 may be measured in any suitable manner, which is not particularly limited by the present disclosure. As an exemplary embodiment, the differential pressure type level gauge may include a first measuring pipe 61 and a second measuring pipe 62, the first measuring pipe 61 may be communicated with the condensate side of the operation container 1, the second measuring pipe 62 may be communicated with the condensate side of the balance container 2, so that the hydraulic pressure at the end where the first measuring pipe 61 is communicated with the condensate side of the operation container 1 and the hydraulic pressure at the end where the second measuring pipe 62 is communicated with the condensate side of the balance container 2 may be measured, and since the height of the second liquid level 21 in the balance container 2, that is, the distance between the end where the overflow pipe 5 is communicated with the balance container 2 and the end of the second measuring pipe 62 is known, the distance between the first liquid level 11 in the operation container 1 and the end of the first measuring pipe 61, that is, the height of the first liquid level 11 may be obtained by simple calculation.
Wherein the first measuring pipe 61 may communicate with any point on the condensed water side of the operation container 1, and the second measuring pipe 62 may communicate with any point on the condensed water side of the balance container 2, which is not particularly limited by the present disclosure. As an exemplary embodiment, referring to fig. 2, the first measuring pipe 61 may be communicated with the condensate side of the operation container 1 through the liquid portion communication pipe 4, the liquid portion communication pipe 4 may include a first pipe section 41 and a second pipe section 42 which are communicated, the first measuring pipe 61 may be connected with the first pipe section 41, and the second measuring pipe 62 may be communicated with the bottom of the balance container 2, so that the hydraulic pressure measured by the first measuring pipe 61 is the hydraulic pressure at the end of the liquid portion communication pipe 4 where the first pipe section 41 is communicated with the operation container 1, and the hydraulic pressure measured by the second measuring pipe 62 is the hydraulic pressure at the bottom of the balance container 2.
In the differential pressure type liquid level gauge provided in the present disclosure, as an exemplary embodiment, the differential pressure type liquid level gauge may include a differential pressure sensor 8, and positive and negative electrodes of the differential pressure sensor 8 may be respectively communicated with the first measuring tube 61 and the second measuring tube 62 for measuring the pressure at positions where the ends of the first measuring tube 61 and the second measuring tube 62 are located.
In the differential pressure type liquid level gauge provided in the present disclosure, as an exemplary embodiment, referring to fig. 3, the differential pressure type liquid level gauge may include a first fluid valve 71, and the first fluid valve 71 may be disposed at a side of the gas communication pipe 3 near the operation container 1, and when the balance container 2 or a pipe on the side of the balance container 2 is damaged to be repaired or replaced, the first fluid valve 71 is closed, so that the repair or replacement of the balance container 2 can be completed without affecting the operation of the operation container 1. Likewise, the differential pressure type liquid level gauge may include a second fluid valve 72, where the second fluid valve 72 may be disposed on a side of the liquid portion communication pipe 4 close to the operation container 1, and when the balance container 2 or a pipe on the side of the balance container 2 is damaged and needs to be overhauled or replaced, the second fluid valve 72 is closed, so that the operation of the operation container 1 is not affected, and meanwhile, the overhauling or replacement of the balance container 2 can be completed.
In summary, when the differential pressure type liquid level meter provided by the disclosure is used, water vapor in the operation container 1 enters the balance container 2 through the liquid portion communicating pipe 4 and condenses in the balance container 2, when the second liquid level 21 in the balance container 2 rises to the overflow pipe 5, the condensed water flows out of the overflow pipe 5 to the inside of the liquid portion communicating pipe 4 and merges with the condensed water in the operation container 1, at this time, the height of the second liquid level 21 in the balance container 2 is the distance between the overflow pipe 5 and the bottom of the balance container 2, the differential pressure sensor 8 measures the hydraulic pressure in the bottom of the balance container 2 and the liquid portion communicating pipe 4, and then the distance from the third liquid level 43 in the second pipe section 42 to the bottom of the first pipe section 41 in the liquid portion communicating pipe 4 can be calculated, namely, the height of the third liquid level 43 can be obtained, and the height of the first liquid level 11 in the operation container 1 can be obtained because the heights of the first liquid level 11 and the third liquid level 43 are equal.
It should be noted that, the "operation container 1" in the present disclosure refers to any device that needs to monitor the internal liquid level in real time, such as a high-pressure heat exchanger, a low-pressure heater, a condenser, and a deaerator, which are commonly used in a thermal power plant, and the differential pressure type liquid level gauge provided in the present disclosure is applicable, which is not specifically limited in this disclosure.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A differential pressure type liquid level gauge for measuring the liquid level in an operation container, characterized in that the differential pressure type liquid level gauge comprises a balance container, a gas part communication pipe, a liquid part communication pipe and an overflow pipe, wherein the operation container and the balance container are provided with a steam side and a condensed water side which are opposite along the gravity direction, a first liquid level is formed in the operation container, a second liquid level is formed in the balance container, and the second liquid level is not lower than the first liquid level;
the gas communication pipe is respectively communicated with the steam side of the operation container and the steam side of the balance container, one end of the liquid communication pipe is communicated with the condensed water side of the operation container, and the other end of the liquid communication pipe is communicated with the gas communication pipe;
one end of the overflow pipe is communicated with the liquid part communication pipe, and the other end of the overflow pipe is communicated with the steam side of the balance container and is positioned below the gas part communication pipe so as to provide a circulation channel for liquid in the balance container to flow into the operation container.
2. The differential pressure gauge according to claim 1, wherein the overflow pipe extends obliquely downwards in a direction away from the balancing container.
3. The differential pressure type liquid level gauge according to claim 2, wherein the angle between the extending direction of the overflow pipe and the horizontal plane is 20-30 °.
4. The differential pressure type liquid level gauge according to claim 1, wherein the liquid portion communicating pipe comprises a first pipe section and a second pipe section which are communicated, the first pipe section extends in a horizontal direction and is communicated with the operation container, the second pipe section extends in a vertical direction and is communicated with the gas portion communicating pipe, and a third liquid level which is equal to the first liquid level in the operation container is formed on the second pipe section.
5. The differential pressure type liquid level gauge according to claim 4, wherein one end of the overflow pipe is communicated with the second pipe section and is located above the third liquid level, and the other end of the overflow pipe is located above the second liquid level.
6. The differential pressure type liquid level gauge according to claim 1, wherein the gas communication pipe is horizontally arranged.
7. The differential pressure level gauge according to any one of claims 1-6, characterized in that it comprises a first measuring tube communicating with the condensate side of the operating vessel and a second measuring tube communicating with the condensate side of the balancing vessel.
8. The differential pressure type liquid level gauge according to claim 7, wherein the first measuring pipe is communicated with the condensed water side of the operation container through the liquid portion communicating pipe, the liquid portion communicating pipe comprises a first pipe section and a second pipe section which are communicated, and the first measuring pipe is communicated with the first pipe section.
9. The differential pressure type liquid level gauge according to claim 8, wherein the differential pressure type liquid level gauge comprises a differential pressure sensor, and positive and negative electrodes of the differential pressure sensor are respectively communicated with the first measuring tube and the second measuring tube for measuring pressure at positions where ends of the first measuring tube and ends of the second measuring tube are located.
10. The differential pressure gauge according to claim 1, characterized in that it comprises a first fluid valve arranged at the side of the gas communication pipe close to the operating container, and/or
The differential pressure type liquid level meter comprises a second fluid valve, and the second fluid valve is arranged on one side of the liquid portion communication pipe, which is close to the operation container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416930.6U CN220230787U (en) | 2023-06-05 | 2023-06-05 | Differential pressure type liquid level meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416930.6U CN220230787U (en) | 2023-06-05 | 2023-06-05 | Differential pressure type liquid level meter |
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| CN220230787U true CN220230787U (en) | 2023-12-22 |
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| CN202321416930.6U Active CN220230787U (en) | 2023-06-05 | 2023-06-05 | Differential pressure type liquid level meter |
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