CN220951377U - Demineralized water tank - Google Patents
Demineralized water tank Download PDFInfo
- Publication number
- CN220951377U CN220951377U CN202322655045.XU CN202322655045U CN220951377U CN 220951377 U CN220951377 U CN 220951377U CN 202322655045 U CN202322655045 U CN 202322655045U CN 220951377 U CN220951377 U CN 220951377U
- Authority
- CN
- China
- Prior art keywords
- water tank
- tank body
- water
- air pressure
- pipe
- 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009469 supplementation Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- -1 NH 4)2 CO Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a demineralized water tank which comprises a water inlet pipe, a water tank body, an air pressure detection device, a compressed nitrogen tank, an air inlet pipe, an electric control valve, a controller, an overflow pipe and a water outlet pipe, wherein the water inlet pipe is connected with the water tank body from the bottom of the water tank body, the water outlet pipe is led out of the water tank body from the bottom of the water tank body, the air pressure detection device is arranged at the top of the water tank body and is used for detecting air pressure in the water tank body, the compressed nitrogen tank is connected with the water tank body through the air inlet pipe, the electric control valve is arranged on the air inlet pipe, the overflow pipe is connected to the top of the side wall of the water tank body, the one-way valve is arranged on the overflow pipe, and the controller is respectively and electrically connected with the air pressure detection device and the electric control valve. The technical scheme is used for solving the problem that the quality of water is easily affected by substances such as carbon dioxide after the existing demineralized water is stored in the water tank.
Description
Technical Field
The utility model belongs to the technical field of demineralized water systems of power plants, and particularly relates to a demineralized water tank.
Background
The desalted water is usually required to be temporarily stored after the preparation is completed, the current conductivity of the water inlet of the desalted water tank is 0.06-0.07 mu s/cm, the current conductivity of the water outlet of the desalted water tank is 0.6-0.8 mu s/cm, and the conductivity of the water outlet is obviously beyond the standard (0.4 mu s/cm) of GB/T12145-2016 thermal generator set and steam quality standard of steam power equipment, so that the thermal equipment is corroded, scaled and salted, the service life of the equipment is shortened, and the safe operation of the equipment is affected.
The reason for the conductivity exceeding is mainly that: after the desalted water is stored in the water tank, the high-purity water with extremely small buffering property is extremely easy to be polluted by carbon dioxide, oxygen, dust and the like in the air. Carbon dioxide in the air enters the desalted water and forms various carbon-containing compounds (HCO 3、HCO3-CO2) immediately. The carbon-containing compounds in the desalted water are very difficult to remove, even if alkaline substances such as ammonia are added into the water to raise the pH value, the carbon dioxide is only converted into carbonate-containing compounds such as NH 4)2 CO, and the dissolved carbon dioxide is not removed, so that after the desalted water enters a thermodynamic system, thermodynamic equipment is corroded, the contents of Fe, cu and the like in the water are high, and the corrosion is related to the fact that the effective sealing of a desalted water tank is not implemented.
Disclosure of utility model
Aiming at the technical problems, the utility model provides a demineralized water tank, so as to solve the problem that the existing demineralized water is easily influenced by substances such as carbon dioxide after being stored in the water tank, and the demineralized water tank can effectively reduce the risk of degradation of the water quality after the storage of the demineralized water.
The utility model provides a demineralized water tank which comprises a water inlet pipe, a water tank body, an air pressure detection device, a compressed nitrogen tank, an air inlet pipe, an electric control valve, a controller, an overflow pipe and a water outlet pipe, wherein the water inlet pipe is connected with the water tank body from the bottom of the water tank body, the water outlet pipe is led out of the water tank body from the bottom of the water tank body, the air pressure detection device is arranged at the top of the water tank body and is used for detecting air pressure in the water tank body, the compressed nitrogen tank is connected with the water tank body through the air inlet pipe, the electric control valve is arranged on the air inlet pipe, the overflow pipe is connected to the top of the side wall of the water tank body, the one-way valve is arranged on the overflow pipe, and the controller is respectively and electrically connected with the air pressure detection device and the electric control valve.
Further, a water inlet valve is arranged on the water inlet pipe, and a water outlet valve is arranged on the water outlet pipe.
Further, a liquid level detection device is arranged in the water tank body.
According to the desalting water tank provided by the utility model, the compressed nitrogen tank is arranged to fill nitrogen into the water tank body, so that the influence of air in the water tank body on the quality of desalted water in the water tank body is eliminated, meanwhile, when the water inlet pipe is used for water inflow, the one-way valve on the overflow pipe can be used for unidirectionally discharging the nitrogen in the overflow pipe so as to ensure the balance of internal and external air pressures and avoid the influence on water inflow, the overflow pipe also plays an overflow role when the water tank water level is too high, when the water outlet pipe is used for water discharging, the air pressure detection device can detect the air pressure reduction of the water tank body, and at the moment, the controller controls the electric control valve to be opened for nitrogen supplementation so as to ensure the air pressure balance.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a desalination tank.
Detailed Description
The utility model discloses a demineralized water tank which can effectively reduce the risk of degradation of water quality after storage of demineralized water.
The following description of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the utility model discloses a demineralized water tank, which comprises a water inlet pipe 1, a water tank body 3, an air pressure detection device 6, a compressed nitrogen tank 8, an air inlet pipe 10, an electric control valve 9, a controller 7, an overflow pipe 12 and a water outlet pipe 5, wherein the water inlet pipe 1 is connected with the water tank body 3 from the bottom of the water tank body 3, the water outlet pipe 5 is led out of the water tank body 3 from the bottom of the water tank body 3, the air pressure detection device 6 is arranged at the top of the water tank body 3, the air pressure detection device 6 is used for detecting air pressure in the water tank body 3, the compressed nitrogen tank 8 is connected with the water tank body 3 through the air inlet pipe 10, the electric control valve 9 is arranged on the air inlet pipe 10, the overflow pipe 12 is connected with the top of the side wall of the water tank body 3, a one-way valve 11 is arranged on the overflow pipe 12, and the controller 7 is respectively and electrically connected with the air pressure detection device 6 and the electric control valve 9.
Further, a water inlet valve 2 is arranged on the water inlet pipe 1, and a water outlet valve 4 is arranged on the water outlet pipe 5.
Further, a liquid level detection device is arranged in the water tank body 3.
According to the desalting water tank provided by the utility model, the compressed nitrogen tank 8 is arranged to fill nitrogen into the water tank body 3, so that the influence of air in the water tank body 3 on the quality of desalted water in the water tank is eliminated, meanwhile, when the water inlet pipe 1 is used for water inlet, the nitrogen in the overflow pipe 12 can be discharged in a unidirectional way by the check valve 11, so that the balance of internal and external air pressures is ensured, the influence on water inlet is avoided, the overflow pipe 12 also plays an overflow role when the water tank water level is too high, when the water outlet pipe 5 is used for water outlet, the air pressure detection device 6 can detect the air pressure reduction of the water tank body 3, and at the moment, the controller 7 controls the electric control valve 9 to be opened for nitrogen supplementation so as to ensure the air pressure balance.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (3)
1. The utility model provides a demineralized water tank, its characterized in that, includes inlet tube, water tank body, air pressure detection device, compression nitrogen gas jar, intake pipe, automatically controlled valve, controller, overflow pipe and outlet pipe, the inlet tube by the bottom access of water tank body the water tank body, the outlet pipe by the bottom of water tank body is drawn forth the water tank body, air pressure detection device set up in the top of water tank body, air pressure detection device is used for detecting air pressure in the water tank body, compression nitrogen gas jar passes through intake-tube connection the water tank body, be provided with in the intake pipe automatically controlled valve, the overflow pipe connect in the lateral wall top of water tank body, be provided with the check valve on the overflow pipe, the controller is the electricity is connected respectively air pressure detection device with automatically controlled valve.
2. A desalinated water tank as claimed in claim 1, wherein the inlet pipe is provided with a water inlet valve and the outlet pipe is provided with a water outlet valve.
3. A desalinated water tank as claimed in claim 1, wherein the tank body is provided therein with a liquid level detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655045.XU CN220951377U (en) | 2023-09-28 | 2023-09-28 | Demineralized water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655045.XU CN220951377U (en) | 2023-09-28 | 2023-09-28 | Demineralized water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220951377U true CN220951377U (en) | 2024-05-14 |
Family
ID=91016306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322655045.XU Active CN220951377U (en) | 2023-09-28 | 2023-09-28 | Demineralized water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220951377U (en) |
-
2023
- 2023-09-28 CN CN202322655045.XU patent/CN220951377U/en active Active
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