CN203768061U - Spiral injection type film spinning tube - Google Patents
Spiral injection type film spinning tube Download PDFInfo
- Publication number
- CN203768061U CN203768061U CN201420151921.3U CN201420151921U CN203768061U CN 203768061 U CN203768061 U CN 203768061U CN 201420151921 U CN201420151921 U CN 201420151921U CN 203768061 U CN203768061 U CN 203768061U
- Authority
- CN
- China
- Prior art keywords
- water
- spinning tube
- film spinning
- holes
- injection type
- 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.)
- Expired - Lifetime
Links
- 238000009987 spinning Methods 0.000 title abstract 11
- 238000002347 injection Methods 0.000 title abstract 4
- 239000007924 injection Substances 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 claims description 38
- 239000007921 spray Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 40
- 230000000694 effects Effects 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 4
- 238000006392 deoxygenation reaction Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a spiral injection type film spinning tube. The spiral injection type film spinning tube comprises a body, wherein 8-12 circular through holes are formed in the body, each through hole deviates an angle alpha to the right side relative to the inner normal direction of the outer wall of the film spinning tube, and each through hole downwards inclines by an angle beta; and a uniform transverse distance is left between every two adjacent circular through holes, and an axial distance is reserved between every two adjacent circular through holes. The spiral injection type film spinning tube has the beneficial effects that due to adoption of the film spinning tube, as the horizontal heights of all the holes and water power pressing heads are different, the tangential speeds of water sprayed into the film spinning tube from all the holes are different; the descending speeds of water entering the film spinning tube in all horizontal planes are also different, and water is accelerated gradually at a water feeding section, so that water current is distributed secondarily in the film spinning tube; and pulsation caused by transverse mixing of fluid micells and eddy currents is relatively violent, and spun liquid film skirts are relatively uniform, so that water vapor has a relatively good heat exchange effect with water in the film spinning tube and the film spinning skirts, thus the oxygen removal effect is improved, and the consumption of water vapor is reduced.
Description
Technical field
The utility model relates to a kind of boiler supply water deaerating equipment, relates to specifically a kind of rotation membrane pipe that is applicable to membrane deaerator.
Background technology
In industries such as fuel-burning power plant, be oxygen and other gas that prevents from heat power equipment and corrosive pipeline thereof, must remove being dissolved in oiler feed.To guarantee heat power equipment safe operation and longer work-ing life.
Deoxygenation principle is Henry's law and Dalton's law, and to various gas soluble in water, under certain pressure, the temperature of water is higher, and solubleness is lower.Thermal de-aeration is exactly while utilizing steam that feedwater is heated to the temperature of saturation under corresponding pressure, vapor partial pressure power will be close to total pressure on the water surface, the pressure component of various gases soluble in water is close to zero, therefore, water does not just have the ability of gas dissolved, gas soluble in water is just precipitated, thereby removes oxygen and other gases in water.
The major equipment of deoxygenation is membrane deaerator, and the major parts of membrane deaerator is rotation membrane pipe.Rotation membrane pipe is 1 (every deoxygenator is arranged many identical rotation membrane pipes according to processing power) vertical short tube of placing, is drilled with some apertures (having certain cutting angle) in pipe upper end.Condensed water and being entered by water-filling after the hydroecium of skinning group, has certain pressure, and this pressure, higher than the pressure in deoxygenator, therefore has pressure reduction between the two.Water from the aperture of rotation membrane pipe, enters inwall by hydroecium under certain pressure reduction, and flow velocity is very high, produces jet motion in the exit of aperture, then form eddy flow and under, steam, in lower end enters pipe, carries out quality, heat and momentum exchange on water, vapour interface.The rotational flow of water coolant has been strengthened heat transfer process, at the utmost point in the short period of time, jet beam can be absorbed into a large amount of heats, make water temperature improve significantly the continuous rising along with water temperature, the pressure drop of while water, so just make to be dissolved in the noncondensable gases such as oxygen in water, carbonic acid gas, air and also progressively separate out, reach the object of deoxygenation.
Present stage membrane deaerator rotation membrane pipe, along the uniform circle manhole that arranges of identical level height on circular tube external wall, because existence cuts angle, make the current that enter from this hole in pipe form continuous rotation along inwall, again owing to existing downward inclination angle and water self gravitation make this current direction current downflow and form moisture film.Because each hole horizontal height is on same level line, and it is all identical with downward inclination angle angle to cut angle, therefore inject flow velocity equal and opposite in direction direction in pipe from each hole along rotation membrane pipe centrosymmetry and parallel at the mobile track of rotation membrane pipe inwall.Interfere mutually the jet work area that eject in each hole, makes the water membrane skirt of water flow stationary in rotation membrane pipe and back-out inhomogeneous.Thereby affect heat transfer effect and deaerating effect.
Summary of the invention
The purpose of this utility model is just that the more uniform spiral spray formula of water membrane skirt rotation membrane pipe by a kind of formation is to make up the deficiency of prior art.
The utility model is that the adopted technical scheme that achieves the goal is:
Spiral spray rotation membrane pipe, comprises body, has 8-12 manhole on body, it is characterized in that: the inter normal direction of each through hole and rotation membrane pipe outer wall has been offset angle [alpha] to the right, each through hole downtilt angles β; Between two adjacent manholes, there is uniform transverse distance, between two adjacent manholes, have axial distance;
Optimize, described axial distance is 4-6mm.
Optimize, α is 50 °-60 °; β is 8 °-15 °.
The beneficial effects of the utility model are: adopt after above-mentioned rotation membrane pipe, because the level height of each position, hole is different, hydraulic head is different, therefore spurt into the tangential velocity of rotation membrane pipe from each hole different.The water that enters rotation membrane pipe is also different in the downstream rate of arbitrary horizontal plane, and inlet segment accelerates step by step, makes current in rotation membrane pipe, carry out quadratic distribution.Thereby cause the horizontal mixing of fluid micellar and pulsation that eddy current causes fiercer, the liquid film skirt of back-out is also more even.It is better with the heat transfer effect of water in rotation membrane pipe and in rotary diaphragm to make water vapor, thereby improves deaerating effect, reduces water vapor consumption.
Accompanying drawing explanation
Fig. 1 is the front view of utility model.
Fig. 2 is the top plan view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
1, rotation membrane pipe body; 2, manhole.
Embodiment
As shown in the figure, the utility model comprises the rotation membrane pipe body 1 of, with the manhole 2 along arranging under rotation membrane pipe outer wall screw, described rotation membrane pipe is that material is stainless steel, length L is 560mm, external diameter φ is 108mm, wall thickness δ is 4mm, on the outer wall circumference that described decoration form is is 160mm apart from rotation membrane pipe upper end h, the point of 90 ° of directions is starting point, every rotate in the counterclockwise direction 45 ° and the some place that offsets downward 5mm and arrange a hole, cloth hole number n is 8, through hole for along the inter normal direction of rotation membrane pipe outer wall to the right deviation angle α be that 60 ° and downtilt angles β are the manhole of 10 °, wherein through-hole diameter φ ' is 4mm.
During the utility model work, its principle of work: de-salted water from rotation membrane pipe body 1 the oblique churning of manhole 2 to inwall, form jet, owing to being full of the heating steam of rising in pipe, water is just inhaled a large amount of heating steam to involve in jet motion, at the utmost point, in the short period of time, on very little stroke, produce violent Hybrid Heating effect, water temperature significantly promotes, and the water of rotation is along rotation membrane pipe inner hole wall, from up to down continue backspin, form the equally thin water membrane skirt of one deck paper, rotary diaphragm and heating steam heat exchange are abundant, now heat transfer water mass transfer effect is the most desirable, the water temperature temperature that reaches capacity. oxygen be separated, due to rotary water current be close to inner tubal wall rotation and under, at rotation membrane pipe intermediate formation vapour-gas passage, there is not gas flow dead band, because oxygen cannot arbitrarily spread in pipe, the oxygen of overflowing and incondensable gas are interrogated speed and are discharged, can only be along with the steam rising from steam discharge pipe discharged to atmosphere.
Claims (3)
1. spiral spray formula rotation membrane pipe, comprises body, has 8-12 manhole on body, it is characterized in that: the inter normal direction of each through hole and rotation membrane pipe outer wall has been offset angle [alpha] to the right, each through hole downtilt angles β; Between two adjacent manholes, there is uniform transverse distance, between two adjacent manholes, have axial distance.
2. according to the spiral spray formula rotation membrane pipe described in claim 1, it is characterized in that: described axial distance is 4-6mm.
3. according to the spiral spray formula rotation membrane pipe described in claim 1 or 2, it is characterized in that:
α is 50 °-60 °; β is 8 °-15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151921.3U CN203768061U (en) | 2014-04-01 | 2014-04-01 | Spiral injection type film spinning tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151921.3U CN203768061U (en) | 2014-04-01 | 2014-04-01 | Spiral injection type film spinning tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768061U true CN203768061U (en) | 2014-08-13 |
Family
ID=51285275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151921.3U Expired - Lifetime CN203768061U (en) | 2014-04-01 | 2014-04-01 | Spiral injection type film spinning tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203768061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383191A (en) * | 2018-04-25 | 2018-08-10 | 磐石生命科技（青岛）股份有限公司 | A kind of removable rotating film type deaerating plant of processing buck |
| CN111667932A (en) * | 2020-06-22 | 2020-09-15 | 中国核动力研究设计院 | Immersion type externally-tangent rotational flow type bubbler structure |
-
2014
- 2014-04-01 CN CN201420151921.3U patent/CN203768061U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383191A (en) * | 2018-04-25 | 2018-08-10 | 磐石生命科技（青岛）股份有限公司 | A kind of removable rotating film type deaerating plant of processing buck |
| CN111667932A (en) * | 2020-06-22 | 2020-09-15 | 中国核动力研究设计院 | Immersion type externally-tangent rotational flow type bubbler structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |