CN220688752U - Dewatering system of liquefied gas spherical tank - Google Patents
Dewatering system of liquefied gas spherical tank Download PDFInfo
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- CN220688752U CN220688752U CN202322237582.2U CN202322237582U CN220688752U CN 220688752 U CN220688752 U CN 220688752U CN 202322237582 U CN202322237582 U CN 202322237582U CN 220688752 U CN220688752 U CN 220688752U
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- dewatering
- tank
- valve
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- liquefied gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000018044 dehydration Effects 0.000 claims description 27
- 238000006297 dehydration reaction Methods 0.000 claims description 27
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model belongs to the technical field of automatic dewatering systems of storage tanks, in particular to a dewatering system of a liquefied gas spherical tank, which comprises a spherical tank, wherein the bottom of the spherical tank is connected with a dewatering tank through a dewatering pipeline, a normally open valve is arranged on the dewatering tank, a water outlet at the bottom of the dewatering tank is provided with a drainage pipeline, a ball float valve device is arranged at the water outlet in the bottom of the dewatering tank, a normally closed valve is arranged on the drainage pipeline, a plurality of water level meters extending downwards into the dewatering tank are arranged at the top of the dewatering tank, a pressure balance pipeline is arranged between the side wall of the dewatering tank and the drainage pipeline, a balance valve is arranged on the pressure balance pipeline, and the dewatering controller is connected with the normally closed valve, the water level meters, the normally open valve and the balance valve through electric signals. The dewatering system can safely, conveniently and quickly discharge water in the dewatering tank, avoids the floating ball assembly from blocking the water outlet under high pressure, and has high drainage efficiency and good drainage effect.
Description
Technical Field
The utility model belongs to the technical field of automatic dehydration of liquefied gas balloon tanks, and particularly relates to a dehydration system of a liquefied gas balloon tank.
Background
In the prior art, liquefied gas is usually contained in a spherical tank capable of tolerating high pressure, and the liquefied gas stored in the spherical tank is required to meet the use requirement of the liquefied gas with higher purity due to moisture, meanwhile, water deposited at the bottom of the spherical tank for storing the liquefied gas for a long time also occupies the inner space of the spherical tank to influence the use rate of the spherical tank, and accumulated water also easily causes rust on the inner wall of the spherical tank to influence the service life of the spherical tank and the quality of the liquefied gas, so that the liquefied gas in the spherical tank is dehydrated regularly.
Therefore, some people have developed that a dehydrator is connected to the bottom of the spherical tank to perform dehydration work so as to obtain liquefied gas with higher purity, and accumulated water at the bottom of the spherical tank is removed so as to reduce the space occupied by the accumulated water and avoid the rusting action of the accumulated water on the inner wall of the spherical tank, but because the pressure of the spherical tank is higher, the pipeline pressure at the water outlet end of the dehydrator is normal pressure, and when the dehydration system of the liquefied gas spherical tank works, the floating ball valve at the water outlet at the bottom of the dehydrator is always in a pressed closed state, and water drainage is difficult.
Therefore, it is urgent to develop a dewatering system of a liquefied gas spherical tank with convenient and quick drainage and high drainage efficiency.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and particularly discloses a dewatering system of a liquefied gas spherical tank, which can conveniently and rapidly discharge water in the dewatering tank, and can prevent a floating ball assembly from blocking a water outlet under high pressure, and has the advantages of high drainage efficiency and good drainage effect.
In order to achieve the technical purpose, the utility model is realized according to the following technical scheme:
the utility model relates to a dewatering system of a liquefied gas spherical tank, which comprises a spherical tank, wherein the bottom of the spherical tank is connected with a dewatering tank through a dewatering pipeline, the dewatering pipeline is provided with a normally open valve, a water outlet at the bottom of the dewatering tank is provided with a drainage pipeline, a water outlet in the bottom of the dewatering tank is provided with a ball float valve device, the drainage pipeline is provided with a normally closed valve, the top of the dewatering tank is provided with a plurality of water level gauges extending downwards into the dewatering tank, a pressure balance pipeline is arranged between the side wall of the dewatering tank and the drainage pipeline, and a balance valve is arranged on the pressure balance pipeline;
the dewatering device also comprises a dewatering controller: the dehydration controller is connected with the normally closed valve, the water level gauges, the normally open valve and the balance valve through electric signals, and the normally closed valve, the normally open valve and the balance valve are controlled to be started and displayed in real time according to the readings of the interface height positions of the liquefied gas and moisture interface read by the water level gauges.
As a further improvement of the technology, the floating ball device comprises a valve body, a floating ball component and a limiting component, wherein the outlet end of the valve body is communicated with a drainage pipeline, the valve body and the limiting component are both arranged on the inner wall of the dehydration tank, the floating ball component is arranged in the area surrounded by the valve body and the limiting component, and the density of the floating ball component is between that of water and that of liquefied gas.
As a still further improvement of the above technology, the water level gauge mounted on the top of the dehydration tank is one or more.
As a further improvement of the above technique, the end portion of the dewatering pipe at the bottom of the spherical tank extends inward more than 2cm from the top of the dewatering tank.
The utility model also discloses a dehydration method of the dehydration system of the liquefied gas spherical tank, which comprises the following specific steps:
(1) Setting an interface height position H0 of an interface between liquefied gas and moisture when dehydration needs to be started in a dehydration tank;
(2) Detecting the interface height position of the interface between the liquefied gas and the water in the dehydration tank, which is measured by a water level gauge, when the position reaches H0, closing a normally closed valve and a normally open valve by a dehydration controller, starting a balance valve, conducting a pressure balance pipeline, balancing the pressure of the upper part and the lower part of a float valve device in the dehydration tank, floating a float ball assembly, closing the balance valve again, and opening the normally closed valve to conduct a drainage pipeline for drainage;
(3) When the water level is lowered to the low level, the floating ball assembly falls down to block the water outlet of the valve body, and the normally closed valve is closed to stop draining.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the dewatering system of the liquefied gas spherical tank, when the interface water level in the dewatering tank measured by the water level gauge reaches the water level required to be drained, the dewatering controller opens the balance valve and conducts the pressure balance pipeline, so that the floating ball component floats upwards, the normally closed valve is opened, the drainage pipeline of the dewatering tank is effectively drained, the phenomenon that the floating ball component blocks a drainage port when the upper and lower pressure difference in the dewatering tank is large is avoided, the problem that the pressure difference exists between the upper and lower sides of the floating ball valve device in the dewatering tank can be effectively solved in time, and smooth drainage of the dewatering tank is ensured;
(2) The dewatering system of the liquefied gas spherical tank is provided with one or more water level meters, and the average value of multiple measurements is taken to ensure the accuracy of water level detection;
(3) According to the dewatering system of the liquefied gas spherical tank, the tail end part of the dewatering pipeline at the bottom of the spherical tank extends inwards from the top of the dewatering tank, so that the space above the position in the dewatering tank is used for containing liquefied gas, and when the dewatering tank or the dewatering pipeline is water, the water is not easy to drain, and the reliability of the drainage process is ensured;
(4) The dewatering system of the liquefied gas spherical tank, which is disclosed by the utility model, realizes accurate and timely dewatering and drainage work by controlling the opening and closing of each valve of the dewatering controller, has high automation degree and is easy to popularize and apply.
Drawings
The utility model is described in detail below with reference to the attached drawings and specific examples:
FIG. 1 is a schematic diagram of a dewatering system (in a non-drained state) of a liquefied gas spherical tank according to the present utility model;
fig. 2 is a schematic diagram of a dewatering system (drainage state) of the liquefied gas spherical tank according to the present utility model.
Detailed Description
As shown in fig. 1 and 2, the dewatering system of the liquefied gas spherical tank comprises a spherical tank 1, wherein the bottom of the spherical tank 1 is connected with a dewatering tank 3 through a dewatering pipeline 2, a normally open valve 4 is arranged on the dewatering tank 3, a drainage pipeline 5 is arranged at a water outlet at the bottom of the dewatering tank 3, a float valve device 8 is arranged at a water outlet in the bottom of the dewatering tank 3, a normally closed valve 9 is arranged on the drainage pipeline 5, a plurality of water level gauges 6 which extend downwards into the dewatering tank 3 are arranged at the top of the dewatering tank 3, a pressure balance pipeline 7 is arranged between the side wall of the dewatering tank 3 and the drainage pipeline 5, and a balance valve 10 is arranged on the pressure balance pipeline 7;
also comprises a dehydration controller 11: the dehydration controller 11 is connected with the normally closed valve 9, the water level meters 6, the normally open valve 4 and the balance valve 10 through electric signals, and the dehydration controller controls the starting and displaying of the normally closed valve 9, the normally open valve 4 and the balance valve 10 in real time according to the readings of the interface height positions of the liquefied gas and moisture interfaces read by the water level meters 6.
The ball float valve device 8 comprises a valve body 81, a floating ball component 82 and a limiting component 83, wherein the outlet end of the valve body 81 is communicated with the drainage pipeline 5, the valve body 81 and the limiting component 83 are both arranged on the inner wall of the dewatering tank 3, the floating ball component 82 is arranged in an area surrounded by the valve body 81 and the limiting component 83, the density of the floating ball component 82 is between that of water and that of liquefied gas, and the floating ball component 82 floats in the water and settles in the liquefied gas.
The number of the water level meters 6 arranged at the top of the dehydration tank 3 can be one or more, and the closest value is the value of the water level height inside the dehydration tank 3 through the detection of the water level meters 6.
The dewatering pipe 2 at the bottom of the spherical tank 1 extends inwards from the top of the dewatering tank 3 to more than 2 cm.
The utility model also discloses a method for the dewatering system of the liquefied gas spherical tank 1, which comprises the following specific steps:
(1) Setting an interface height position H0 of an interface between liquefied gas and moisture when dehydration needs to be started in the dehydration tank 3;
(2) Detecting the interface height position of the interface between the liquefied gas and the water in the dehydration tank 3 measured by the water level gauge 6, when the position reaches H0, closing the normally closed valve 9 and the normally open valve 4 by the dehydration controller 11, starting the balance valve 10, conducting the pressure balance pipeline 7, balancing the pressure of the upper part and the lower part of the float valve device 8 in the dehydration tank 3, floating the float ball assembly 82 upwards (as shown in figure 2), closing the balance valve 10, and opening the normally closed valve 9 to conduct the drainage pipeline 5 for drainage;
(3) When the water level is lowered to the low level, the floating ball assembly 82 automatically blocks the water outlet of the valve body 81 after falling, and the normally closed valve 9 is closed to stop water drainage.
The present utility model is not limited to the above-described embodiments, and various modifications or variations of the present utility model are intended to be included in the present utility model, provided that they fall within the scope of the appended claims and the equivalents thereof, unless they depart from the spirit and scope of the present utility model.
Claims (4)
1. The utility model provides a dewatering system of liquefied gas spherical tank, includes spherical tank, its characterized in that: the bottom of the spherical tank is connected with a dewatering tank through a dewatering pipeline, a normally open valve is arranged on the dewatering pipeline, a drainage pipeline is arranged at a water outlet at the bottom of the dewatering tank, a ball float valve device is arranged at a water outlet in the bottom of the dewatering tank, a normally closed valve is arranged on the drainage pipeline, a plurality of water level meters extending downwards into the dewatering tank are arranged at the top of the dewatering tank, a pressure balance pipeline is arranged between the side wall of the dewatering tank and the drainage pipeline, and a balance valve is arranged on the pressure balance pipeline;
the dewatering device also comprises a dewatering controller: the dehydration controller is connected with the normally closed valve, the water level gauges, the normally open valve and the balance valve through electric signals, and the normally closed valve, the normally open valve and the balance valve are controlled to be started and displayed in real time according to the readings of the interface height positions of the liquefied gas and moisture interface read by the water level gauges.
2. The dewatering system for a liquefied gas spherical tank as recited in claim 1, wherein: the float valve device comprises a valve body, a float ball assembly and a limiting assembly, wherein the outlet end of the valve body is communicated with a drainage pipeline, the valve body and the limiting assembly are both arranged at the bottom position in a dehydration tank, the float ball assembly is arranged in an area surrounded by the valve body and the limiting assembly, and the density of the float ball assembly is between that of water and that of liquefied gas.
3. The dewatering system for a liquefied gas spherical tank as recited in claim 2, wherein: and one or more water level gauges are arranged at the top of the dehydration tank.
4. The dewatering system for a liquefied gas spherical tank as recited in claim 1, wherein: the tail end part of the dewatering pipeline at the bottom of the spherical tank inwards stretches into more than 2cm from the top of the dewatering tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237582.2U CN220688752U (en) | 2023-08-18 | 2023-08-18 | Dewatering system of liquefied gas spherical tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322237582.2U CN220688752U (en) | 2023-08-18 | 2023-08-18 | Dewatering system of liquefied gas spherical tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220688752U true CN220688752U (en) | 2024-03-29 |
Family
ID=90376798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322237582.2U Active CN220688752U (en) | 2023-08-18 | 2023-08-18 | Dewatering system of liquefied gas spherical tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220688752U (en) |
-
2023
- 2023-08-18 CN CN202322237582.2U patent/CN220688752U/en active Active
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