CN102087201B - Salt mist generation device and method for salt mist corrosion box - Google Patents
Salt mist generation device and method for salt mist corrosion box Download PDFInfo
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- CN102087201B CN102087201B CN201010572048A CN201010572048A CN102087201B CN 102087201 B CN102087201 B CN 102087201B CN 201010572048 A CN201010572048 A CN 201010572048A CN 201010572048 A CN201010572048 A CN 201010572048A CN 102087201 B CN102087201 B CN 102087201B
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- salt
- solusion
- storage tank
- equilibrium liquid
- salt fog
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Abstract
The invention discloses a salt mist generation device for a salt mist corrosion box, comprising a spray nozzle, a saline solution storage tank, a lever and an equilibrium liquid container, wherein a piston which is matched with the inner wall of the saline solution storage tank and can move up and down is installed in the saline solution storage tank; a locating rod is fixed on the upper end surface of the piston; the piston is connected with one end of the lever by the locating rod; the bottom of the saline solution storage tank is provided with an opening and is connected with the spray nozzle via a pipe; the bottom of the equilibrium liquid container is provided with an opening provided with a valve capable of adjusting liquid flow; and the equilibrium liquid container is hung on the other end of the lever. The invention also discloses a salt mist generation method using the salt mist corrosion box. In the invention, the gravity of a weight serves as pressure for atomizing a saline solution to generate salt mist. The atomizing pressure is kept stable by a lever balancing device. The salt mist generation device has the advantages of low cost, good repeatability, safety, reliability, easiness of performance parameter design, good repeatability, and the like.
Description
Technical field
The present invention relates to salt fog generating apparatus and method, be used for the salt air corrosion case.
Background technology
Salt-fog test is corrosion stability and the coating of the evaluation metal material accelerated test method to the degree of protection of parent metal; Thickness evenness and the factor of porosity of confirming various protective finish have been widely used in; As the test method of evaluation bulk article or screening coating, also be considered to simulate marine atmosphere to the different metal effect, the most effective laboratory accelerated corrosion test method.Salt spray generator is one of important component part of salt-fog test device, and size, homogeneity and continuous spray time for spray amount in the national standard of salt-fog test all have defined.
The existing salt spray generator that is used for the laboratory salt spray corrosion test produces ultrasound wave or high pressure draught through gas generator or ultrasonic generator mostly, and then produces salt fog.This type of generating means is generally comparatively complicated and need special design of feedback control device to keep the homogeneity of spray amount, and manufacturing cost is high; Need external power supply or consume chemical raw material, use cost is high.This type of device is used the restriction that receives cost issues often in middle-size and small-size laboratory.
Summary of the invention
Technical matters to be solved by this invention is to overcome manufacturing, the use cost height that existing salt air corrosion case exists with the salt fog generating apparatus, and the problem that needs to consume the more energy provides a kind of low energy consumption, low cost and salt fog generating apparatus easy to use.
The following technical scheme of the concrete employing of the present invention:
A kind of salt air corrosion case is used the salt fog generating apparatus, comprises shower nozzle, it is characterized in that, this device also comprises the salt solusion storage
Jar, lever and equilibrium liquid container; Said salt solusion tank inside is equipped with a piston that matches and can move up and down with the salt solusion reservoir walls, and the upper surface of this piston is fixed with a backstay, and piston is connected with an end of said lever through backstay; The perforate of salt solusion tank bottom is connected with said shower nozzle through pipe; The perforate of said equilibrium liquid container bottom is equipped with the valve that can adjust fluid flow on the hole; The equilibrium liquid container hangs on the other end of said lever.
When using said apparatus to generate salt fog, according to following method:
Step 1, in the salt solusion storage tank, add satisfactory salt solusion;
Step 2, on piston, install weight additional, this weight of heavy equals to produce the required pressure of satisfactory salt fog;
Step 3, in the equilibrium liquid container, add balance liquid, add the weight g of balance liquid
Balance Confirm according to following formula:
g
Equilibrium liquid =g
Salt fog * L
1/ L
2-g
Equalizing reservoir ,
In the formula, g
Equalizing reservoir Be the gravity of equilibrium liquid container, g
Salt fog Be the gravity of the salt solusion that adds in the salt solusion storage tank, L
1For balance pivot to the distance of piston junction, L
2For balance pivot to the distance of equilibrium liquid container junction;
Step 4, the valve of opening the equilibrium liquid container bottom and adjustment fluid flow, the weight Δ g that the balance liquid unit time is flowed out
Equilibrium liquid Satisfy following formula:
Δ g
Equilibrium liquid =Δ g
Salt fog * L
1/ L
2,
In the formula, Δ g
Salt fog Be the gravity of the salt solusion of unit interval internal consumption, L
1For balance pivot to the distance of piston junction, L
2For balance pivot to the distance of equilibrium liquid container junction.
Utilization of the present invention is added in the gravity of weight on the piston as the pressure that makes the salt solusion atomizing, thereby produces salt fog; And through the lever balance device dynamically balance make the pressure that generates salt fog in process of the test, keep stablizing because of the Gravity changer that salt solusion stereomutation in the salt solusion storage tank causes.Compare prior art, the present invention has the following advantages:
(1) the present invention is simple in structure, need not electrical equipment or chemical industry parts such as pump, ultrasonic generator, gas generator, and is cheap for manufacturing cost.
(2) power of salt solusion atomizing of the present invention comes from the weight self gravitation, in the salt fog generative process, need not to use additional power source or consumes chemical raw material, pressurized air etc., so use cost is cheap and safe and reliable.
(3) the present invention's stress level of producing salt fog can be regulated through the increase and decrease weight of heavy, and is easy to operate and degree of accuracy is higher.
(4) the present invention changes the gravity that causes through lever stable-pressure device balance because of salt fog liquor capacity in the salt solusion storage tank
Change, the pressure that salt fog takes place is remained unchanged in process of the test, guaranteed the homogeneity of the salt fog that produces.
(5) it is repeatable that the salt fog performance that the present invention produced (for example salt fog amount and salt fog concentration) has test preferably.
Description of drawings
Fig. 1 is the structural representation of salt air corrosion case of the present invention with the salt fog generating apparatus;
Fig. 2 is the sectional view of salt solusion storage tank.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
Shown in accompanying drawing 1, accompanying drawing 2, salt air corrosion case of the present invention comprises shower nozzle 5, salt solusion storage tank 2, lever 7 and equilibrium liquid container 8 with the salt fog generating apparatus; Said salt solusion storage tank 2 inside are equipped with a piston 3 that matches and can move up and down with salt solusion storage tank 2 inwalls, and the upper surface of this piston 3 is fixed with a backstay, and piston 3 is connected with an end of said lever 7 through backstay; Salt solusion storage tank 2 bottom opening are connected with said shower nozzle 5 through pipe 4; Said equilibrium liquid container 8 bottom opening are equipped with the valve 9 that can adjust fluid flow on the hole; Equilibrium liquid container 8 hangs on the other end of said lever 7.For the ease of adding salt solusion and taking out piston, the open upper end of salt solusion storage tank 2; In order to prevent that salt-fog test completion back piston top and the bottom from producing draught head and causing piston to be difficult to take out, the bottom of salt solusion storage tank 2 also has an opening 6 with a lid.Salt solusion storage tank 2 preferably uses transparent, corrosion-resistant materials such as organic glass, glass or plastics, can also be further in salt solusion storage tank lateral marks fluid injection body containing mark, so that check jar amount of interior residual salts solution at any time.
When using said apparatus to generate salt fog, according to following method:
Step 1, in salt solusion storage tank 2, add satisfactory salt solusion; Add salt solusion concentration and weight require to confirm according to concrete salt spray corrosion test;
Step 2, shown in accompanying drawing 2, on piston 3, install weight 1 additional, the weight of this weight 1 equals to produce the required pressure of satisfactory salt fog;
Step 3, in equilibrium liquid container 8, add balance liquid, add the weight g of balance liquid
Balance Confirm according to following formula:
g
Equilibrium liquid =g
Salt fog * L
1/ L
2-g
Equalizing reservoir ,
In the formula, g
Equalizing reservoir Be the gravity of equilibrium liquid container 8, g
Salt fog Be the gravity of the salt solusion of adding in the salt solusion storage tank 2, L
1For the fulcrum of lever 7 to the distance of piston 3 junctions, L
2For the fulcrum of lever 7 to the distance of equilibrium liquid container 8 junctions;
Step 4, the valve 9 of opening equilibrium liquid container 8 bottoms and adjustment fluid flow, the weight Δ g that the balance liquid unit time is flowed out
Equilibrium liquid Satisfy following formula:
Δ g
Equilibrium liquid =Δ g
Salt fog * L
1/ L
2,
In the formula, Δ g
Salt fog Be the gravity of the salt solusion of unit interval internal consumption, L
1For the fulcrum of lever 7 to the distance of piston 3 junctions, L
2For the fulcrum of lever 7 to the distance of equilibrium liquid container 8 junctions.
At this moment, piston 3 to the salt solusion continu to press in the salt solusion storage tank 2, produces salt fogs thereby pass through shower nozzle 5 under the action of gravity of weight 1.
The principle of salt spray generator of the present invention is following:
Piston 3 is exerted pressure to the salt solusion in the salt solusion storage tank 2 under the action of gravity of weight 1; To cause the salt fog flow of solution and to improve its pressure; Thereby promote solution and get into the salt air corrosion case via pipe 4; Produce salt fog through shower nozzle 5, utilize lever stable-pressure device (constituting) balance the pressure that salt fog takes place to be remained unchanged in process of the test simultaneously because of the Gravity changer that salt solusion stereomutation in the salt solusion storage tank 2 causes by lever 7 and the equilibrium liquid container 8 that balance liquid is housed.
Can know that according to lever principle the gravity of equilibrium liquid container 8 (is made as g
Equalizing reservoir ) and the gravity of equilibrium liquid (be made as g
Equilibrium liquid ) produced equilibrant through 7 pairs of pistons 3 of lever and (be made as g
Balance ), see formula 1:
g
Balance =(g
Equalizing reservoir + g
Equilibrium liquid ) * L
2/ L
1(1)
In the formula, L
1For the fulcrum of lever 7 to the distance of piston 3 junctions, L
2For the fulcrum of lever 7 to the distance of equilibrium liquid container 8 junctions;
The pressure (being made as F) that produces salt fog can be got by formula 2:
F
=(g
Weight + g
Salt fog )-g
Balance (2)
In the formula, g
Weight Gravity for weight 1;
Volume through equilibrium liquid in the adjustment equilibrium liquid container 8 makes:
g
Balance =g
Salt fog (3)
G in the formula
Salt fog Gravity for the salt solusion in the salt solusion storage tank 2;
The original pressure that then produces salt fog equals the gravity g of weight 1
Weight , can know through formula (1) and (3), as long as the equilibrium liquid body weight that in equilibrium liquid container 8, adds satisfies formula (4),
g
Equilibrium liquid =g
Salt fog * L
1/ L
2-g
Equalizing reservoir (4)
Because the salt solusion in the salt solusion storage tank 2 is a continuous decrease in the salt fog generative process, this moment can be through the flow velocity of the valve 9 adjustment liquid on the equilibrium liquid container 8, makes the gravity Δ g of the balance liquid that from equilibrium liquid container 8, flows out in the unit interval
Balance Equal following value:
Δ g
Equilibrium liquid =Δ g
Salt fog * L
1/ L
2(5)
Δ g in the formula
Salt fog Gravity for the salt solusion of unit interval internal consumption;
Then in the salt fog generative process arbitrary time point (establish from begin to generate salt fog to time of this time point be t) the pressure F that produces salt fog equals:
F=(g
Weight + g
Salt fog -t * Δ g
Salt fog )-(g
Balance -t * Δ g
Equilibrium liquid * L
2/ L
1)
=g
Weight (6)
Thus, salt fog generation pressure can keep stable and remains unchanged in entire work process.
Above-mentioned weight 1 can be an arbitrary shape, and the present invention is the circular counterweight of hollow shown in accompanying drawing 2 preferably, and the backstay of fitting piston 3 upper surfaces evenly, stably is distributed on the piston 3 to guarantee the gravity that is produced; Can prepare the counterweight of one group of Different Weight, so that select for use to different requirement of experiment.
For the ease of calculating, can select for use with salt solusion storage tank 2 in the identical balance liquid of salt solusion proportion, preferably use identical salt solusion.
When in salt solusion storage tank 2, adding salt solusion; As long as open the lid on salt solusion storage tank 2 bottom openings 6; Make pressure and atmospheric pressure balance in the salt solusion storage tank 2; Can take out piston 3 (this moment, salt solusion storage tank 2 external and internal pressures were consistent, extracted the friction force that piston 3 required power are merely piston 3 self gravitations and piston 3 and salt solusion storage tank 2 inwalls) easily, through the opening of the upper end salt solusion of in salt solusion storage tank 2, annotating.
Salt air corrosion case of the present invention with the salt fog generating apparatus have with low cost, safe and reliable, performance parameter be easy to design and salt fog amount and concentration take place has preferably characteristics such as repeatability, be particularly suitable for the small sample salt spray corrosion test that carries out in the laboratory.
Claims (9)
1. a salt air corrosion case is used the salt fog generating apparatus, comprises shower nozzle, it is characterized in that, this device also comprises salt solusion storage tank, lever and equilibrium liquid container; Said salt solusion tank inside is equipped with a piston that matches and can move up and down with the salt solusion reservoir walls, and the upper surface of this piston is fixed with a backstay, and piston is connected with an end of said lever through backstay; The perforate of salt solusion tank bottom is connected with said shower nozzle through pipe; The perforate of said equilibrium liquid container bottom is equipped with the valve that can adjust fluid flow on the hole; The equilibrium liquid container hangs on the other end of said lever; Add a weight above the piston, this weight of heavy equals to produce the required pressure of satisfactory salt fog.
2. the salt air corrosion case is used the salt fog generating apparatus according to claim 1, it is characterized in that, said salt solusion storage tank open upper end.
3. the salt air corrosion case is used the salt fog generating apparatus according to claim 1, it is characterized in that, said salt solusion tank bottom also has an opening with a lid.
4. the salt air corrosion case is used the salt fog generating apparatus according to claim 1, it is characterized in that, said salt solusion storage tank is processed by transparent, resistant material.
5. use the salt fog generating apparatus like the said salt air corrosion case of claim 4, it is characterized in that, said salt solusion storage tank lateral marks is marked with the liquid capacity scale.
6. one kind is used the said salt air corrosion case of claim 1 to generate the method for salt fog with the salt fog generating apparatus, it is characterized in that this method comprises:
Step 1, in the salt solusion storage tank, add satisfactory salt solusion;
Step 2, on piston, install weight additional, this weight of heavy equals to produce the required pressure of satisfactory salt fog;
Step 3, in the equilibrium liquid container, add balance liquid, add the weight g of balance liquid
Equilibrium liquid Confirm according to following formula:
g
Equilibrium liquid =g
Salt fog * L
1/ L
2-g
Equalizing reservoir ,
In the formula, g
Equalizing reservoir Be the gravity of equilibrium liquid container, g
Salt fog Be the gravity of the salt solusion that adds in the salt solusion storage tank, L
1For balance pivot to the distance of piston junction, L
2For balance pivot to the distance of equilibrium liquid container junction;
Step 4, the valve of opening the equilibrium liquid container bottom and adjustment fluid flow, the weight Δ g that the balance liquid unit time is flowed out
Equilibrium liquid Satisfy following formula:
Δ g
Equilibrium liquid =Δ g
Salt fog * L
1/ L
2,
In the formula, Δ g
Salt fog Be the gravity of the salt solusion of unit interval internal consumption, L
1For balance pivot to the distance of piston junction, L
2For balance pivot to the distance of equilibrium liquid container junction.
7. like the method for the said salt air corrosion case of the said use of claim 6 claim 1, it is characterized in that weight described in the step 2 is the hollow circular counterweight of one group of Different Weight with salt fog generating apparatus generation salt fog.
8. generate the method for salt fog like the said salt air corrosion case of the said use of claim 6 claim 1 with the salt fog generating apparatus, it is characterized in that, said balance liquid is identical with salt solusion proportion in the salt solusion storage tank.
9. like the method for the said salt air corrosion case of the said use of claim 8 claim 1, it is characterized in that said balance liquid is the salt solusion in the salt solusion storage tank with salt fog generating apparatus generation salt fog.
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CN201010572048A CN102087201B (en) | 2010-12-03 | 2010-12-03 | Salt mist generation device and method for salt mist corrosion box |
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CN201010572048A CN102087201B (en) | 2010-12-03 | 2010-12-03 | Salt mist generation device and method for salt mist corrosion box |
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CN102087201A CN102087201A (en) | 2011-06-08 |
CN102087201B true CN102087201B (en) | 2012-09-05 |
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CN201010572048A Expired - Fee Related CN102087201B (en) | 2010-12-03 | 2010-12-03 | Salt mist generation device and method for salt mist corrosion box |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102830054A (en) * | 2011-06-17 | 2012-12-19 | 南京梅山冶金发展有限公司 | Automatic low-power erosion detector |
CN106644911A (en) * | 2016-12-22 | 2017-05-10 | 安徽乐金环境科技有限公司 | Salt mist test equipment |
CN112336951A (en) * | 2020-11-09 | 2021-02-09 | 青岛大学附属医院 | Neurosurgery is with atomizing inhaler |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3918640A (en) * | 1973-06-20 | 1975-11-11 | Stern Freres Sa | Mist generator |
CN101066540A (en) * | 2007-06-09 | 2007-11-07 | 张海啸 | Foot-operated liquid-pumping flush sprayer |
CN201579146U (en) * | 2009-11-18 | 2010-09-15 | 中国西电电气股份有限公司 | Spraying device for salt spray testing box |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3188263B1 (en) * | 2000-11-17 | 2001-07-16 | スガ試験機株式会社 | Salt spray test method and apparatus |
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2010
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3918640A (en) * | 1973-06-20 | 1975-11-11 | Stern Freres Sa | Mist generator |
CN101066540A (en) * | 2007-06-09 | 2007-11-07 | 张海啸 | Foot-operated liquid-pumping flush sprayer |
CN201579146U (en) * | 2009-11-18 | 2010-09-15 | 中国西电电气股份有限公司 | Spraying device for salt spray testing box |
Non-Patent Citations (1)
Title |
---|
JP特开2002-214120A 2002.07.31 |
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CN102087201A (en) | 2011-06-08 |
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Granted publication date: 20120905 Termination date: 20161203 |