CN114382982B - Pressure buffer device of closed system - Google Patents
Pressure buffer device of closed system Download PDFInfo
- Publication number
- CN114382982B CN114382982B CN202111594846.9A CN202111594846A CN114382982B CN 114382982 B CN114382982 B CN 114382982B CN 202111594846 A CN202111594846 A CN 202111594846A CN 114382982 B CN114382982 B CN 114382982B
- Authority
- CN
- China
- Prior art keywords
- tank body
- buffer tank
- air
- drainage pipeline
- buffer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000872 buffer Substances 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000001502 supplementing effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 13
- 230000008859 change Effects 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012556 adjustment buffer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
- F16L55/052—Pneumatic reservoirs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pipe Accessories (AREA)
Abstract
A closed system pressure buffering device, comprising: the buffer tank body and the water injection pipe joint are of a sealed hollow cylindrical structure; the top of the buffer tank body is provided with a discharge device for discharging gas or liquid in the buffer tank body and an air-filling valve for filling air into the buffer tank body; a drainage pipeline is arranged in the buffer tank body; the upper end of the drainage pipeline is connected to a drainage device; the lower end of the drainage pipeline extends to the middle part of the buffer tank body; the water injection pipe joint is arranged at the bottom of the buffer tank body; the lower side part of the buffer tank body is also provided with a water discharge ball valve. The invention adopts the air volume compressibility of the buffer tank to absorb the pressure expansion or contraction of the system; the air pressure is utilized to buffer the whole system pressure by supplementing water to store the air of the buffer water tank and utilizing the fixed space gas volume; the arrangement of the drainage pipeline in the buffer tank body can buffer the internal drainage pipeline in time under the action of the internal air retention pressure, so that the safe, stable and reliable operation of the system is met.
Description
Technical Field
The invention belongs to the technical field of pressure buffering, and particularly relates to a pressure buffering device of a closed system.
Background
In the closed pure water cooling circulation water cooling system, the pressure of the water cooling system fluctuates due to the volume change caused by the expansion and contraction of the water cooling liquid due to the change of the environment and the temperature of the water cooling liquid, and the pressure of the water cooling system rises in a specific space due to the expansion caused by the rise of the temperature of the water cooling liquid. Shrinkage occurs when the temperature of the water cooling liquid is reduced, so that the pressure of the water cooling system is reduced. The fluctuation of the pressure of the water cooling system causes the flow change, and the whole system is unstable in operation, so that the pressure of the whole water cooling system is required to be stabilized.
The buffer device of the existing water cooling system mainly adopts a buffer mode of an expansion tank, a rubber air bag is arranged in the expansion tank, the air bag is communicated with the system, buffer liquid is filled in the air bag, compressed air is filled between the air bag and the tank wall, the expansion and the contraction of the air bag are mainly utilized to meet the pressure buffer tank of the whole system, and the buffer mode of the expansion tank has the defects that 1, the air bag needs to be replaced periodically; 2. the sealing performance is poor, and the regular air supplement is needed.
Disclosure of Invention
In order to solve the defects existing in the prior art, the invention aims to provide a pressure buffer device of a closed system.
The invention adopts the following technical scheme:
a closed system pressure buffering device, comprising: the buffer tank body and the water injection pipe joint are of a sealed hollow cylindrical structure; the top of the buffer tank body is provided with a discharge device for discharging gas or liquid in the buffer tank body and an air-filling valve for filling air into the buffer tank body; a drainage pipeline is arranged in the buffer tank body; the upper end of the drainage pipeline is connected to a drainage device; the lower end of the drainage pipeline extends to the middle part of the buffer tank body; the water injection pipe joint is arranged at the bottom of the buffer tank body and is used for being connected with the whole system; the lower side part of the buffer tank body is also provided with a water discharging ball valve for discharging liquid in the buffer tank body.
In the above technical solution, preferably, the discharging device and the air-filling valve are disposed at the top of the buffer tank body through a sealing cover.
In the above technical solution, preferably, the discharge device and the air-adding valve are disposed at an upper side portion of the sealing cover.
In the above technical solution, preferably, the drainage pipe is disposed at a lower side portion of the sealing cover.
In the above technical solution, preferably, the distance between the bottom of the drainage pipeline and the bottom of the adjusting buffer tank body is 2/3 of the height of the adjusting buffer tank body.
In the above technical solution, preferably, a visual liquid level gauge is provided on a side portion of the buffer tank body.
In the above technical solution, preferably, a liquid level sensor is further disposed at a side portion of the buffer tank.
In the above technical solution, preferably, the discharging device is in a normally closed state during the operation of the system.
In the above technical solution, preferably, the discharging device is in an open state when the system is replenished with water.
In the above technical solution, preferably, the air-filling valve is in a normally closed state.
In the above technical solution, preferably, when the liquid of the system water replenishing is over the bottom of the drainage pipeline, the liquid compresses the air in the buffer tank body to play a role of buffering; when the reaction force of the compressed air is sufficient to expel the liquid from the expelling means, the liquid is expelled from the expelling means.
In the above technical solution, preferably, an emptying plug is further disposed at a lower side portion of the buffer tank body.
Compared with the prior art, the invention has the beneficial effects that:
1. the air volume compressibility of the buffer tank is adopted, and the pressure of the absorption system expands or contracts;
2. The air pressure is utilized to buffer the whole system pressure by supplementing water to store the air of the buffer water tank and utilizing the fixed space gas volume;
3. The top discharge device of the buffer water tank sealing cover and the internal drainage pipeline are arranged, so that the collection of the air volume in the buffer tank body is controlled;
4. The arrangement of the drainage pipeline in the buffer tank body can buffer the internal drainage pipeline in time under the action of the internal air retention pressure, so that the safe, stable and reliable operation of the system is met.
Drawings
FIG. 1 is a schematic view of a pressure buffer device of a closed system according to the present invention;
FIG. 2 is a schematic cross-sectional view of a pressure buffering device of a closed system according to the present invention;
In the figure:
1-a buffer tank body;
2-a discharge device;
3-visual level gauge;
4-a liquid level sensor;
5-emptying the plug;
6, a water injection pipe joint;
7-a water discharge ball valve;
8-a drainage pipeline;
9-gas valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The described embodiments of the application are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are within the scope of the present application.
Fig. 1 is a schematic structural view of a pressure buffer device of a closed system according to the present invention, and fig. 2 is a schematic sectional view of a pressure buffer device of a closed system according to the present invention. As shown in fig. 1 and 2, a closed pressure buffer device of the present invention mainly includes a buffer tank 1 and a water injection pipe joint 6.
The buffer tank body 1 is of a sealed hollow cylindrical structure, and the top of the buffer tank body 1 is provided with a discharge device 2 for discharging gas or liquid in the buffer tank body 1 and an air-filling valve 9 for filling air into the buffer tank body 1.
The inside of the buffer tank body 1 is provided with a drainage pipeline 8, the upper end of the drainage pipeline 8 is connected to the drainage device 2, and the lower end of the drainage pipeline 8 extends to the middle part of the buffer tank body 1.
The height of the drainage pipeline 8 is defined according to the water capacity and the liquid temperature change of the whole system, and the compressed air accumulated at the upper part of the closed buffer device is required to contain and absorb the liquid shrinkage and expansion of the whole system liquid caused by the temperature change as the judgment basis.
The distance between the bottom of the drain pipe 8 and the bottom of the adjustment buffer tank 1 is preferably 2/3 of the height of the adjustment buffer tank 1.
The water injection pipe joint 6 is arranged at the bottom of the buffer tank body 1 and is used for being connected with the whole system.
The lower side part of the buffer tank body 1 is also provided with a water drain ball valve 7 for draining the liquid in the buffer tank body 1. The waterproof ball valve 7 is in a normally closed state, and when the buffer tank body (1) is overhauled or cleaned, liquid in the buffer tank body 1 is discharged through the water discharging ball valve 7, so that overhauling or cleaning is facilitated.
The discharging device 2 and the air adding valve 9 are arranged at the top of the buffer tank body 1 through a sealing cover. The buffer tank 1 is internally provided with a sealing environment by a sealing cover.
The discharge device 2 and the air-entraining valve 9 are arranged on the upper side of the sealing cover, and the drainage pipeline 8 is arranged on the lower side of the sealing cover.
The lateral part of the buffer tank body 1 is provided with a visual liquid level meter 3, and the lateral part of the buffer tank body 1 is also provided with a liquid level sensor 4. When the visual level gauge 3 or the level sensor 4 shows that the liquid in the buffer tank 1 is lower than the height of the bottom of the drain pipe 8, the water will be replenished to the whole system.
The discharging device 2 is in a normally closed state in the running process of the system, and the discharging device 2 is in an open state when the system is replenished with water, so that excessive water pressure on the buffer tank 1 in the water replenishing process is avoided, and the pressure on the system is further caused.
The gas adding valve 9 is in a normally closed state.
When the liquid for supplementing water of the system passes through the bottom of the drainage pipeline 8, the liquid compresses the air in the buffer tank body 1 to play a role in buffering; when the reaction force of the compressed air is sufficient to discharge the liquid from the discharge device 2, the liquid is discharged from the discharge device 2.
The lower side part of the buffer tank body 1 is also provided with a emptying plug 5. The emptying plug 5 is used as a spare port of the system to replace the water injection pipe joint 6 or replace the water discharge ball valve 7 to discharge the liquid in the buffer tank body 1.
Compared with the prior art, the invention has the beneficial effects that:
1. the air volume compressibility of the buffer tank is adopted, and the pressure of the absorption system expands or contracts;
2. The air pressure is utilized to buffer the whole system pressure by supplementing water to store the air of the buffer water tank and utilizing the fixed space gas volume;
3. The top discharge device of the buffer water tank sealing cover and the internal drainage pipeline are arranged, so that the collection of the air volume in the buffer tank body is controlled;
4. The arrangement of the drainage pipeline in the buffer tank body can buffer the internal drainage pipeline in time under the action of the internal air retention pressure, so that the safe, stable and reliable operation of the system is met.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (7)
1. A closed system pressure buffer device for a closed pure water cooling circulation water cooling system, comprising: buffer tank body (1) and water injection pipe joint (6), its characterized in that:
The buffer tank body (1) is of a sealed hollow cylindrical structure;
the top of the buffer tank body (1) is provided with a discharge device (2) for discharging gas or liquid in the buffer tank body (1) and an air-filling valve (9) for filling air into the buffer tank body (1);
a drainage pipeline (8) is arranged in the buffer tank body (1);
the upper end of the drainage pipeline (8) is connected to the drainage device (2);
The lower end of the drainage pipeline (8) extends to the middle part of the buffer tank body (1);
the water injection pipe joint (6) is arranged at the bottom of the buffer tank body (1) and is used for being connected with the whole system;
The lower side part of the buffer tank body (1) is also provided with a water discharge ball valve (7) for emptying the liquid in the buffer tank body (1);
a visual liquid level meter (3) is arranged at the side part of the buffer tank body (1);
the side part of the buffer tank body (1) is also provided with a liquid level sensor (4);
The distance between the bottom of the drainage pipeline (8) and the bottom of the adjusting buffer tank body (1) is 2/3 of the height of the adjusting buffer tank body (1).
2. The closed system pressure buffering device according to claim 1, wherein:
The discharging device (2) and the air adding valve (9) are arranged at the top of the buffer tank body (1) through the sealing cover.
3. The closed system pressure buffering device according to claim 2, wherein:
The discharging device (2) and the air adding valve (9) are arranged on the upper side part of the sealing cover;
The drainage pipeline (8) is arranged at the lower side part of the sealing cover.
4. The closed system pressure buffering device according to claim 1, wherein:
The discharging device (2) is in a normally closed state in the running process of the system;
the discharge device (2) is in an open state when the system is replenished with water.
5. The closed system pressure buffering apparatus of claim 4, wherein:
the air-adding valve (9) is in a normally closed state.
6. The closed system pressure buffering apparatus of claim 4, wherein:
When the liquid for supplementing water of the system passes through the bottom of the drainage pipeline (8), the liquid compresses air in the buffer tank body (1) to play a role in buffering; when the reaction force of the compressed air is sufficient to discharge the liquid from the discharge device (2), the liquid is discharged from the discharge device (2).
7. The closed system pressure buffering device according to claim 1, wherein:
the lower side part of the buffer tank body (1) is also provided with an emptying plug (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111594846.9A CN114382982B (en) | 2021-12-23 | 2021-12-23 | Pressure buffer device of closed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111594846.9A CN114382982B (en) | 2021-12-23 | 2021-12-23 | Pressure buffer device of closed system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114382982A CN114382982A (en) | 2022-04-22 |
| CN114382982B true CN114382982B (en) | 2024-05-28 |
Family
ID=81198858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111594846.9A Active CN114382982B (en) | 2021-12-23 | 2021-12-23 | Pressure buffer device of closed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114382982B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1355749A (en) * | 1963-01-17 | 1964-03-20 | Commissariat Energie Atomique | Anti-water hammer device |
| GB0100848D0 (en) * | 2001-01-12 | 2001-02-21 | Hogsden Richard | A method of damping surges in a liquid system |
| CN102061353A (en) * | 2010-11-16 | 2011-05-18 | 天津钢管集团股份有限公司 | Method for optimizing runtime value of steel-making closed-loop circulating water buffer tank |
| CN201981574U (en) * | 2010-12-31 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Pressure stabilization and water supplementing device for closed-cycle water system |
| CN202188183U (en) * | 2011-08-17 | 2012-04-11 | 河南清水源科技股份有限公司 | Automatic pressure relief device |
| CN206089754U (en) * | 2016-09-26 | 2017-04-12 | 邯钢集团邯宝钢铁有限公司 | Modified closed circuit cooling water system moisturizing device |
| CN207111323U (en) * | 2017-08-10 | 2018-03-16 | 广州高澜节能技术股份有限公司 | Bellows expansion water tank buffer unit |
| KR20180001470U (en) * | 2018-05-02 | 2018-05-16 | 신영공업 주식회사 | Chamber for pressure switch of fire extinguishment system |
| CN108050339A (en) * | 2018-01-08 | 2018-05-18 | 青海小西牛生物乳业股份有限公司 | A kind of water-hammer arrester |
| CN111365554A (en) * | 2020-04-02 | 2020-07-03 | 核工业北京化工冶金研究院 | Device for carrying out system pressure stabilization and medium capacity regulation by adopting gas |
-
2021
- 2021-12-23 CN CN202111594846.9A patent/CN114382982B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1355749A (en) * | 1963-01-17 | 1964-03-20 | Commissariat Energie Atomique | Anti-water hammer device |
| GB0100848D0 (en) * | 2001-01-12 | 2001-02-21 | Hogsden Richard | A method of damping surges in a liquid system |
| CN102061353A (en) * | 2010-11-16 | 2011-05-18 | 天津钢管集团股份有限公司 | Method for optimizing runtime value of steel-making closed-loop circulating water buffer tank |
| CN201981574U (en) * | 2010-12-31 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Pressure stabilization and water supplementing device for closed-cycle water system |
| CN202188183U (en) * | 2011-08-17 | 2012-04-11 | 河南清水源科技股份有限公司 | Automatic pressure relief device |
| CN206089754U (en) * | 2016-09-26 | 2017-04-12 | 邯钢集团邯宝钢铁有限公司 | Modified closed circuit cooling water system moisturizing device |
| CN207111323U (en) * | 2017-08-10 | 2018-03-16 | 广州高澜节能技术股份有限公司 | Bellows expansion water tank buffer unit |
| CN108050339A (en) * | 2018-01-08 | 2018-05-18 | 青海小西牛生物乳业股份有限公司 | A kind of water-hammer arrester |
| KR20180001470U (en) * | 2018-05-02 | 2018-05-16 | 신영공업 주식회사 | Chamber for pressure switch of fire extinguishment system |
| CN111365554A (en) * | 2020-04-02 | 2020-07-03 | 核工业北京化工冶金研究院 | Device for carrying out system pressure stabilization and medium capacity regulation by adopting gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114382982A (en) | 2022-04-22 |
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