CN202953837U - Salt-removing water tank device - Google Patents
Salt-removing water tank device Download PDFInfo
- Publication number
- CN202953837U CN202953837U CN 201220273352 CN201220273352U CN202953837U CN 202953837 U CN202953837 U CN 202953837U CN 201220273352 CN201220273352 CN 201220273352 CN 201220273352 U CN201220273352 U CN 201220273352U CN 202953837 U CN202953837 U CN 202953837U
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- casing
- water
- water tank
- sweet
- tank device
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Abstract
The utility model is suitable for water treatment devices, and provides a salt-removing water tank device which comprises a tank body used for carrying out salt-removing treatment. The tank body is provided with a water inlet, a water outlet and an overflow pipe. The salt-removing water tank device further comprises a breather used for absorbing foreign gas. The breather is connected with the tank body through a breathing pipe. One end of the overflow pipe is connected with the tank body, and the other end of the overflow pipe is sealed through liquid. Accordingly, the salt-removing tank body of the salt-removing water tank device has good sealing performance, and the gas absorbed by the tank body from the breather is subjected to impurity absorbing treatment, so salt-removing treatment effects can be further improved.
Description
Technical field
The utility model relates to water treatment device, relates in particular to a kind of sweet-water tank device.
Background technology
In thermal power plant, high pressure, ultra-high voltage unit are very high to the supplementary feed water quality requirement, according to " fuel-burning power plant Water vapor chemistry supervision guide rule " DL/T561-95 regulation, the ultra-high voltage unit to the water quality requirement of supplementary feed is: hardness ≈ 0umo1/L, silicon-dioxide≤20ug/L, specific conductivity≤0.2uS/cm (25 ℃).
From the data of statistics, add mixed bed through the one-level desalination and process the de-mineralized water obtained, water-quality guideline generally can reach unit supplementary feed standard promulgated by the ministries or commissions of the Central Government.But after de-mineralized water enters sweet-water tank, increase along with the shelf-time, the desalination electrical conductivity of water rises gradually, the pH value descends simultaneously, main manifestations is that supplementary feed, electric generator inner cooling water conductivity reach 0.7～0.10us/cm and exceed 3～5 times of " fuel-burning power plant Water vapor chemistry supervision guide rule " required standard, the pH value also drops to 5.7 left and right by 7.0 left and right, makes supplementary feed, machine inner cold water obviously be slightly acidic.Give the low temperature water-steam system of unit and directly adopt supplementary feed all to cause more serious corrosion as the cooling system of electric generator inner cooling water, and the raising along with unit capacity, it is more serious that this problem becomes, and the major cause that causes this harm be airborne carbon dioxide solubility in de-mineralized water, caused chemical reaction.Although existing sweet-water tank part has encapsulation process in order to isolated carbonic acid gas, such as existing rubbery human body formula, floating roof formula being installed in water tank, add the method such as ball covering on soil.This several method all must be transformed the water tank internal structure, so just must the preservative coat of sweet-water tank be destroyed, then reset, and the also existing problems that are in operation, sealing effectiveness is not very good.
In summary, existing sweet-water tank obviously exists inconvenience and defect in actual use, so be necessary to be improved.
The utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of sweet-water tank device, and it is simple in structure, can prevent that foreign gas from entering in casing.
To achieve these goals, the utility model provides a sweet-water tank device, comprise a casing of processing for desalination, described casing has water-in, water outlet and upflow tube, described device also comprises a respiratory organ for absorption impurity gas, described respiratory organ is connected in described casing by a respiratory siphon, and an end of described upflow tube connects described casing, the other end fluid-tight.
According to sweet-water tank device of the present utility model, in described respiratory organ, be loaded with for absorbing CO
2The alkali lye of gas.
According to sweet-water tank device of the present utility model, described respiratory siphon is provided with for measuring the vacuum table of negative pressure in described casing, and the magnetic valve of controlling described respiratory siphon break-make for the negative pressure according in described casing.
According to sweet-water tank device of the present utility model, described respiratory organ has the insulation outer wall, and described respirator interior is provided with electric heater unit
The utility model passes through at the outside connection of sweet-water tank casing one respiratory organ for absorption impurity gas, and makes the air that enters casing at first by entering casing after the respiratory organ absorbing and filtering again, greatly reduces whereby the foreign gas content of the air that enters casing.Simultaneously, casing has a upflow tube, and this upflow tube one end is connected with casing, and the other end is by the water fluid-tight.Make whereby casing have good stopping property, outside air can not enter casing, and air absorbs by respiratory organ before entering casing, has guaranteed the normal operation of sweet-water tank.
The accompanying drawing explanation
Fig. 1 is the structural representation of the sweet-water tank device of the utility model one embodiment;
Fig. 2 is the structural representation of the sweet-water tank device of another embodiment of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Referring to Fig. 1, the utility model provides a kind of sweet-water tank device, this device 100 comprises a casing 10 of processing for desalination, this casing 10 has water-in 11, water outlet 12 and upflow tube 13, one end of upflow tube 13 connects described casing, the other end arranges by the water fluid-tight, can isolate outside air whereby.
In the present embodiment, sweet-water tank device 100 also has a respiratory organ 20, and this respiratory organ 20 is connected with casing 10 by breathing pipeline 30.Respiratory organ 20 is for absorbing airborne foreign gas, and the chemical liquid that absorption impurity gas needs is equipped with in its inside.Concrete, in the present embodiment to absorb CO
2For example, respiratory organ 20 inside are loaded with for absorbing CO
2Alkali lye (NaOH solution), following chemical reaction: CO can occur in the air in respiratory organ 20
2+ NaOH → NaCO
3+ H
2O, whereby, can absorb airborne CO
2.
In concrete application, when the flooding quantity of casing 10 is greater than aquifer yield, water level rises, the interior formation malleation of casing 10, and the air on casing 10 tops is discharged from the water seal end of upflow tube 13; When flooding quantity is less than aquifer yield, 10 interior formation negative pressure in case, air enters through breathing pipeline 30 from respiratory organ 20, due to airborne CO
2All, by alkali liquor absorption, make the CO in casing 10
2Dividing potential drop is close to zero, thereby prevents from de-mineralized water entering CO
2, prevented the pollution of de-mineralized water.
In another embodiment of the present utility model, respiratory organ 20 has the insulation outer wall, and its inside also is provided with electric heater unit, makes alkali liquid temperature can realize automatic control, makes whereby sweet-water tank device 100 of the present utility model be applied under low temperature environment.
Preferably, in the present embodiment, referring to Fig. 2, breathing pipeline 30 is provided with a vacuum table 31 and a magnetic valve 32.Vacuum table 31 is for automatically detecting the negative pressure value in casing 10, and 32 of magnetic valves can be controlled automatically according to this negative pressure value the operation of breathing pipeline.Concrete, if the heating unit of respiratory organ 20 breaks down or the negative pressure of casing 10 is too high, can cause casing 10 to take out because negative pressure is excessive flat, therefore, the user can preset a negative pressure value, and the negative pressure that vacuum table 31 detects in casing 10 reaches this value, and magnetic valve 32 is opened automatically, air can enter in casing 10 from magnetic valve 32, prevents that sweet-water tank from damaging because negative pressure is excessive.
Sweet-water tank device 100 of the present utility model can effectively prevent CO
2Dissolve in, make desalination water quality that good improvement be arranged.Concrete, the untight casing of its de-mineralized water Conductivity Ratio reduces 0.075us/cm, descend nearly 30%, and de-mineralized water pH value raising 0.394, and the water quality of the water outlet 12 of casing 10 approaches the water quality of water-in 11.Simultaneously, 100 stable and reliable operations of sweet-water tank device, can effectively prevent the corrosion of heat power equipment.
In embodiment of the present utility model, casing 10 preferably adopts industry No. 3 sweet-water tanks commonly used.Simultaneously, the utility model has been done a specifically contrast by the sweet-water tank of an embodiment and prior art to the impact of water quality.Concrete, need to carry out following preparation work before on-test: the 1) installation of sweet-water tank sampling gate, at this, the diameter of stopple coupon is preferably 9mm; 2) the de-mineralized water pump discharge is installed sampling gate, and desalination water pump herein uses the desalination water pump too No. 3, and the stopple coupon of its installation is also 9mm, during actual motion, takes out the water of No. 3 sweet-water tanks with these No. 3 desalination water pumps; 3) guaranteeing that the de-mineralized water pump packing is tested without sewing in situation.4) get all the test drug ready.
For ease of the water correction situation before and after casing 10 sealings to sweet-water tank device 100, before its sealing, the DD, the pH value that first its de-mineralized water and mixed bed are gone out to saliva are monitored, referring to table 1 and table 2, table 1 is that the electricity before casing 10 sealings is led (DD) and pH statistics table 2 is DD, pH statisticses that before casing 10 sealings, mixed bed goes out saliva.
Table 1
Table 2
After casing 10 sealing, at first at breathing pipeline 30, U-shaped pipe differential pressure meters are installed, the water of packing in U-shaped pipe, to adding in respiratory organ 20 40% NaOH solution to overflow port, to the mouth of pipe that is filled to upflow tube 13 in upflow tube 13 water seals.Carry out again leak detection.Above-mentioned input respiratory organ 20 and overflow water seal, adjusting cistern water level changes reciprocal three times, check the airtight situation at breathing pipeline 30, upflow tube 13 and casing 10 each positions in the time of change of level with suds, and pressure reduction and the vacuum table indicating value of observing U-shaped pipe differential pressure meter, in the situation that confirm tight test of casing 10 sealing, guarantee the accuracy of test.
In concrete operations, at first carry out the maximum positive voltage test of casing 10, first increase the flooding quantity in casing 10, reduce its aquifer yield, cistern water level is raise, now the pressure rise in casing 10, pressure rise in casing 10 is during to certain value, the outside exhaust of water seal, the maximum positive voltage that this pressure is casing 10, concrete maximum positive voltage numerical value is 0.45kPa.
When carrying out the peak suction test of casing 10, lower the liquid level in casing 10, tank pressure is constantly descended, record the pressure in casing 10 when respiratory organ 20 air inlet, the peak suction that this pressure is casing 10, concrete numerical value is-0.75kPa.
After measuring the maximum positive voltage and peak suction of casing 10,100 sealings of sweet-water tank device are after three days, and to casing 10, DD, the pH of interior de-mineralized water are monitored, and measuring result is as shown in table 3.
Table 3
The DD of the sweet-water tank device 100 before and after sealing and pH contrast are as shown in table 4:
Table 4
The rear outlet of casing 10 sealing water conductivity (DD), pH and the mixed bed of sweet-water tank device 100 go out saliva DD, pH and are compared as follows shown in table 5.
Table 5
By to of the present utility model to the test, prove that it can effectively prevent that carbonic acid gas from dissolving in, and is improved the water quality of sweet-water tank device 100.Concrete, the untight casing of its de-mineralized water Conductivity Ratio reduces 0.075us/cm, descend nearly 30%, de-mineralized water pH value than sealing before raising 0.394, and the water quality of the water outlet 12 of casing 10 approaches the water quality of water-in 11.Respiratory organ 20 stable and reliable operations that the utility model adopts, operate intervention without personnel substantially.Can effectively prevent the corrosion of heat power equipment, for the safe operation of thermal power plant lays the foundation.
In sum, the utility model is by connecting a respiratory organ for absorption impurity gas in sweet-water tank casing outside, and make the air that enters casing at first by entering again casing after the respiratory organ absorbing and filtering, greatly reduce whereby the foreign gas content of the air that enters casing.Simultaneously, casing has a upflow tube, and this upflow tube one end is connected with casing, and the other end is by the water fluid-tight.Make whereby casing have good stopping property, outside air can not enter casing, and air absorbs by respiratory organ before entering casing, has guaranteed the normal operation of sweet-water tank.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (4)
1. a sweet-water tank device, comprise a casing of processing for desalination, described casing has water-in, water outlet and upflow tube, it is characterized in that, described device also comprises a respiratory organ for absorption impurity gas, described respiratory organ is connected in described casing by a respiratory siphon, and an end of described upflow tube connects described casing, the other end fluid-tight.
2. sweet-water tank device according to claim 1, is characterized in that, in described respiratory organ, is loaded with for absorbing CO
2The alkali lye of gas.
3. sweet-water tank device according to claim 2, is characterized in that, described respiratory siphon is provided with for measuring the vacuum table of negative pressure in described casing, and the magnetic valve of controlling described respiratory siphon break-make for the negative pressure according in described casing.
4. according to the described sweet-water tank device of claim 1～3 any one, it is characterized in that, described respiratory organ has the insulation outer wall, and described respirator interior is provided with electric heater unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273352 CN202953837U (en) | 2012-06-11 | 2012-06-11 | Salt-removing water tank device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273352 CN202953837U (en) | 2012-06-11 | 2012-06-11 | Salt-removing water tank device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202953837U true CN202953837U (en) | 2013-05-29 |
Family
ID=48459421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220273352 Expired - Fee Related CN202953837U (en) | 2012-06-11 | 2012-06-11 | Salt-removing water tank device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202953837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974619A (en) * | 2018-08-13 | 2018-12-11 | 华电电力科学研究院有限公司 | A kind of water tank water seal arrangement and its application method |
-
2012
- 2012-06-11 CN CN 201220273352 patent/CN202953837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974619A (en) * | 2018-08-13 | 2018-12-11 | 华电电力科学研究院有限公司 | A kind of water tank water seal arrangement and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |