CN207318306U - A kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable - Google Patents
A kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable Download PDFInfo
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- CN207318306U CN207318306U CN201720971941.9U CN201720971941U CN207318306U CN 207318306 U CN207318306 U CN 207318306U CN 201720971941 U CN201720971941 U CN 201720971941U CN 207318306 U CN207318306 U CN 207318306U
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- venturi tube
- pressure
- water tank
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- downstream
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Abstract
The utility model discloses a kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable, the Venturi tube-type spreader cavitation corrosion equipment of this pressure-adjustable by back with water inlet line, admission line, main line pipeline, blowdown pipeline and valve, determine head water tank, Venturi tube forms.Venturi tube upstream and downstream be provided with two volumes not wait determine head water tank, for adjusting the pressure of upstream and downstream；Head water tank bottom connection admission line is determined in upstream, for studying influence of the air content to cavitation and cavitation erosion after blowdown or ventilation；Head water tank bottom connection blowdown pipeline is determined in downstream, for blowdown；Strainer mesh number, upstream and downstream partition plate height can select different specifications as needed.The Venturi tube-type spreader cavitation corrosion device structure of such a pressure-adjustable is simple, pressure regulation method is simple, equipment cleaning degree is higher, has stronger applicability.
Description
Technical field
The utility model relates to Hydrodynamic Cavitation Technology field, a kind of Venturi tube-type spreader cavitation corrosion of particularly pressure-adjustable is set
It is standby.
Background technology
Occur non-stationary cavity in liquid and indicate the nascent of cavitation in liquid, vacuole eventually occurs after development
Crumble and fall, when bubble collapse will degrade the destruction surface of solids.It is more and more to be related to the field of cavitation phenomenon at present, but cavitation and sky
Erosion is not one and easily solves the problems, such as, so researcher is also more and more.At present, research method is broadly divided into substance sight
Survey and two kinds of laboratory experiment.In-house laboratory investigation is compared with substance is observed, and time and expense are all saved much, and operating mode can be a variety of
It is various.More considerably complicated than ruler since influence factor is very much, can not also be forecast with unerring accuracy substance with the result of laboratory experiment at present
Cavitation Characteristics, but it is a kind of means of very important research Cavitation Characteristics.
At present, the equipment for studying cavitation and cavitation corrosion mainly has circulating water tunnel, decompression cabinet, Venturi tube, electric spark cavitation to send out
Generating apparatus etc., but the still Venturi tube-type spreader cavitation corrosion equipment for using more.The principle of this cavitation corrosion equipment is mainly water flowing
Channel narrows, flow velocity are accelerated, and pressure reduces rapidly and produces cavitation and cavitation corrosion.In Hydrodynamic Cavitation Technology field, exist both at home and abroad
Different types of Venturi tube-type spreader cavitation corrosion equipment, can study the cavitation under certain condition, but have certain limitation.Example
Such as, test specimen upstream and downstream pressure cannot be adjusted, without simple and practicable method；The operating mode of cavitation corrosion equipment simulating is more single, research
With significant limitation；Equipment is complicated, and operating process is cumbersome etc..
Therefore, it is badly in need of the Venturi tube-type spreader cavitation corrosion of a kind of simple in structure and pressure regulation method simply, with stronger applicability to set
It is standby.
Utility model content
The utility model aims to provide a kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable, for solving current Venturi tube
Test specimen upstream and downstream pressure present in type cavitation corrosion equipment cannot be adjusted, function is more single, equipment is complicated, operating process is cumbersome,
The problems such as applicability is poor.
Technical solution is used by the utility model solves its technical problem：
The Venturi tube-type spreader cavitation corrosion equipment of this pressure-adjustable by back with water inlet line, admission line, main line pipeline, blowdown pipeline,
Valve, determine head water tank, Venturi tube composition.Venturi tube upstream and downstream be provided with two volumes not wait determine head water tank；On
Head water tank bottom connection admission line is determined in trip, and head water tank bottom connection blowdown pipeline is determined in downstream；Strainer mesh number (get over by mesh number
Greatly, aperture of filter screen is smaller), upstream and downstream partition plate height can select different specifications as needed.
The advantages of the utility model：
The pressure of upstream and downstream is directly proportional to the height of partition plate, when upstream and downstream determines the partition plate of head water tank selection different height
When, it can realize the adjusting to upstream and downstream pressure, such a pressure regulation method is fairly simple.Meanwhile head water tank baffle is determined in upstream
Highly the divider height of head water tank is determined more than downstream, so there will necessarily be upstream pressure is higher than downstream pressure.It is different when selecting
During the sieve of mesh number, filtering situation of the sieve to water is different, and it is different to flow through the water quality of Venturi tube, through admission line air inlet
Afterwards, the air content of water is added, this just drastically increases the scope of application of the equipment, reduces the limitation of research contents.
Admission line, blowdown pipeline are used equally for blowdown, add the clean-up performance of complete equipment.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the structure diagram of strainer.
Fig. 3 is the top view of strainer.
In figure：Back with water inlet line 1, valve 2, determine head water tank 3, partition plate 4, strainer 5, discharge opening 6, admission line 7, main line pipe
Line 8, Venturi tube 9, blowdown pipeline 10, threaded hole 11.
Embodiment
The utility model is further described below in conjunction with attached drawing：
The Venturi tube-type spreader cavitation corrosion equipment of this pressure-adjustable is by back with water inlet line 1, admission line 7, main line pipeline 8, blow-off pipe
Line 10, valve 2, determine head water tank 3, Venturi tube 9 forms.9 upstream and downstream of Venturi tube be provided with two volumes not wait determine water
Head water tank 3；Head water tank 3-1 bottoms connection admission line 7 is determined in upstream, and head water tank 3-2 bottoms connection blowdown pipeline is determined in downstream
10；5 mesh number of strainer, upstream and downstream partition plate 4 can just select different specifications as needed.Partition plate 4, strainer 5 are fixed with bolt
On head water tank 3 is determined.
During work, valve 2-1 is only opened first, closes other whole valve 2-2-2-4.Then, water is by back with water inlet line 1
Flow into, flow through valve 2-1, realize the adjusting to feed liquor uninterrupted.Then, head water tank 3-1, water tank 3- are determined in water inflow upstream
Water in 1 is continuously increased, and liquid level constantly raises, and after height exceedes the height of partition plate 4-1, water is just from partition plate 4-1 tops
Overflow, finally flowed out from discharge opening 6-1.At this time, valve 2-3 can be opened, water just flows through Venturi tube 9 from main line pipeline 8, so
After flow to downstream and determine head water tank 3-2.
After the water that downstream is determined in head water tank 3-2 increases, reduce the open degree of valve 2-3, due to the unlatching of valve 2-1
Open degree of the degree more than valve 2-3, so the current that upstream is determined in head water tank 3-1 enter, more, outflow is few, and liquid level can still be kept
In highest liquid level.Similarly, after a period of time, the liquid level that downstream is determined in head water tank 3-2 can also be maintained at highest liquid level, and be less than
The highest liquid level of upstream, the water being more than are flowed out from discharge opening 6-2, at this time fully open valve 2-3, to reduce the pressure loss.If (
If valve 2-3 is always maintained at maximum open degree, final upstream fluid level height only can will not form liquid as downstream fluid level height
Face difference in height, would not also form upstream and downstream pressure differential.)
After upstream and downstream liquid level constant, upstream and downstream pressure is just constant.Because cavitation corrosion is a long-term process, venturi
Test specimen in pipe 9 from starting to contact water to final upstream and downstream pressure constant this period, with respect to for whole experiment process very
It is short, can be neglected, so when can be used as Venturi tube 9 in test specimen produce cavitation corrosion at the beginning of between.The size of upstream and downstream pressure
It can be calculated according to the height of liquid level according to formula, when upstream fluid level is highly more than downstream fluid level height, upstream pressure
Necessarily it is higher than downstream pressure.Flow in main line pipeline 8 also can select Bernoulli Jacob's energy equation to calculate according to liquid level difference
Go out.Use the upstream and downstream partition plate 4 of different height instead, different upstream and downstream pressure can be obtained.
When needing to consider influence of the air content to cavitation and cavitation corrosion of water, valve 2-2 can be opened at this time, and gas enters upper
After head water tank 3-1 is determined in trip, since the density of gas is smaller, the disturbance of current in addition, gas can be uniformly mixed with water, Ran Houyi
Rise and enter main line pipeline 8.When influence of the water quality to be studied to cavitation and cavitation corrosion, the sieve 5 of different meshes, filtering can be selected
Fall the impurity of different-grain diameter size, water is reached different clean-up effects.After prolonged experiment, head water tank 3 is determined
Waste water of the bottom containing dirt, impurity can be discharged from admission line 7, blowdown pipeline 10 respectively.
The Venturi tube-type spreader cavitation corrosion device structure of such a pressure-adjustable is simple, pressure regulation method is simple, equipment cleaning degree is higher, tool
There is stronger applicability.
Claims (2)
- A kind of 1. Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable, it is characterised in that：The Venturi tube-type spreader cavitation corrosion of this pressure-adjustable is set It is standby by back with water inlet line (1), admission line (7), main line pipeline (8), blowdown pipeline (10) and valve (2), determine head water tank (3), Venturi tube (9) forms；Venturi tube (9) upstream and downstream be provided with two volumes not wait determine head water tank (3)；Determine upstream Head water tank (3-2) bottom connection blowdown pipeline (10) is determined in head water tank (3-1) bottom connection admission line (7), downstream；Strainer (5) mesh number, upstream and downstream partition plate (4) can just select different specifications as needed.
- 2. the Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable according to claim 1, it is characterised in that：The upstream Ding Shui The volume of head water tank (3-1) is more than the volume that head water tank (3-2) is determined in downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720971941.9U CN207318306U (en) | 2017-08-06 | 2017-08-06 | A kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720971941.9U CN207318306U (en) | 2017-08-06 | 2017-08-06 | A kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318306U true CN207318306U (en) | 2018-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720971941.9U Expired - Fee Related CN207318306U (en) | 2017-08-06 | 2017-08-06 | A kind of Venturi tube-type spreader cavitation corrosion equipment of pressure-adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207318306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418569A (en) * | 2021-06-18 | 2021-09-21 | 马鞍山钢铁股份有限公司 | Cleaning device for venturi tube flow measurement pipeline and control method thereof |
| CN114813039A (en) * | 2022-04-29 | 2022-07-29 | 安徽农业大学 | Venturi type high-speed cavitation water tunnel test device |
-
2017
- 2017-08-06 CN CN201720971941.9U patent/CN207318306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418569A (en) * | 2021-06-18 | 2021-09-21 | 马鞍山钢铁股份有限公司 | Cleaning device for venturi tube flow measurement pipeline and control method thereof |
| CN114813039A (en) * | 2022-04-29 | 2022-07-29 | 安徽农业大学 | Venturi type high-speed cavitation water tunnel test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20190806 |