CN104826351A - Falling-film evaporator, liquid distributor and liquid equalizing plate - Google Patents
Falling-film evaporator, liquid distributor and liquid equalizing plate Download PDFInfo
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- CN104826351A CN104826351A CN201510236809.9A CN201510236809A CN104826351A CN 104826351 A CN104826351 A CN 104826351A CN 201510236809 A CN201510236809 A CN 201510236809A CN 104826351 A CN104826351 A CN 104826351A
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Abstract
The invention discloses a falling-film evaporator, a liquid distributor and a liquid equalizing plate. The liquid equalizing plate comprises a plate body and liquid distributing holes (11) formed in the plate body, wherein an inlet area of the liquid distributing holes (11) is greater or less than the outlet area of the liquid distributing holes (11); through the adoption of the liquid equalizing plate provided by the invention, the inlet area of the liquid distributing holes is greater or less than the outlet area of the liquid distributing holes (11), namely, the inlet area and the outlet area of the liquid distributing holes are different; and therefore, the longitudinal section of the liquid distributing holes is not rectangle, when a fluid is ejected through the liquid distributing holes, a recirculation vortex region is prevented from forming at the border of the outlet end by the fluid since the guidance direction of the outlet end with respect to the inlet end is changed; the increased energy loss due to the production of a vortex is avoided; the instability of inter-layer flowing of the liquid distributor, caused by the vortex, is avoided, and the stable flowing of the next layer of liquid equalizing plate cannot be damaged; and furthermore, the bubble stacking caused by the vortex is avoided, and the flowing uniformity of the fluid in the liquid distributing holes is improved.
Description
Technical field
The present invention relates to sprinkling equipment technical field, particularly a kind of downward film evaporator, liquid distributor and liquid-distributing plate thereof.
Background technology
Downward film evaporator comprises liquid distributor, and liquid distributor comprises liquid-distributing plate and feed tube.Liquid distributor in downward film evaporator is positioned at heat exchanger tube upper end, and its function will be sprayed (or dripping pouring) uniformly by the refrigerant gas-liquid mixture after choke valve to heat exchanger tube surface evaporation.
Wherein, the cloth liquid uniformity of liquid distributor drastically influence the operating efficiency of downward film evaporator.Cloth liquid inequality can cause the dry wall phenomenon of heat exchanger tube.Dry wall phenomenon is namely in evaporimeter, and part heat exchanger tube surface does not have liquid film (or drop) to cover, and makes this part heat exchanger tube " dry combustion method ", causes overall heat exchange efficiency to reduce.
As shown in Figure 1, the perforate on the liquid-distributing plate of liquid distributor is cylindrical hole, and the structure of its longitudinal section is rectangular configuration.When spraying fluid, fluid flows along the inwall of liquid distributing hole, backflow vortex region can be formed at the boundary of the port of export of liquid distributing hole, vortex adds energy loss, further, vortex increases unstability can to liquid distributor interflow, destroys the steady flow (or uniform spraying) of fluid on lower one deck liquid-distributing plate, the existence of vortex region makes the bubble in refrigerant pile up herein, affects the flow uniformity at fluid hole place.The problems referred to above are the topmost reason causing dry wall phenomenon to produce.
Therefore, how avoiding backflow vortex region to be formed, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of liquid-distributing plate, formed to avoid backflow vortex region.The invention also discloses a kind of downward film evaporator and the liquid distributor with above-mentioned liquid-distributing plate.
For achieving the above object, the invention provides following technical scheme:
A kind of liquid-distributing plate, comprise plate body and be opened in the liquid distributing hole on described plate body, it is characterized in that, the inlet-duct area of described liquid distributing hole is greater than or less than its discharge area.
Preferably, in above-mentioned liquid-distributing plate, described liquid distributing hole is flaring hole and/or convergent hole.
Preferably, in above-mentioned liquid-distributing plate, described liquid distributing hole is bellmouth or shoulder hole.
Preferably, in above-mentioned liquid-distributing plate, described liquid distributing hole is bellmouth, and its inwall is the cambered surface of plane or the camber towards described liquid distributing hole.
Preferably, in above-mentioned liquid-distributing plate, described liquid distributing hole comprises described flaring hole and described convergent hole;
Described convergent hole is arranged at the higher-pressure region of described plate body, and described flaring hole is arranged at the low-pressure area of described plate body.
Preferably, in above-mentioned liquid-distributing plate, the little end cross-sectional area of described liquid distributing hole is S
1, its large end cross-sectional area is S
2, S
2≤ 4S
1.
Preferably, in above-mentioned liquid-distributing plate, described liquid distributing hole is combination bore, and described plate body is provided with away from the side of the import of described liquid distributing hole and stretches out limit, described in stretch out limit and described plate body form described liquid distributing hole outlet away from the described liquid distributing hole edge of the side of the import of described liquid distributing hole.
Preferably, in above-mentioned liquid-distributing plate, described in stretch out limit be the inclined side arranged along the centerline dip of described liquid distributing hole.
Preferably, in above-mentioned liquid-distributing plate, described in stretch out limit and comprise vertical edge that the center line that is parallel to described liquid distributing hole arranges and connect the fillet of described vertical edge and described plate body.
Preferably, in above-mentioned liquid-distributing plate, described in stretch out outlying one end from described plate body and be less than 5mm to the distance of described plate body.
Preferably, in above-mentioned liquid-distributing plate, the distance L between adjacent two described liquid distributing holes, wherein, 50mm≤L≤200mm.
Preferably, in above-mentioned liquid-distributing plate, the quantity being positioned at the described liquid distributing hole of the higher-pressure region of described plate body is less than the quantity of the described liquid distributing hole of the low-pressure area being positioned at described plate body.
Preferably, in above-mentioned liquid-distributing plate, the aperture being positioned at the described liquid distributing hole of the higher-pressure region of described plate body is less than the aperture of the described liquid distributing hole of the low-pressure area being positioned at described plate body, and described aperture is the entrance point diameter of described liquid distributing hole.
Preferably, in above-mentioned liquid-distributing plate, the aperture difference of adjacent two described liquid distributing holes is no more than 3mm.
Preferably, in above-mentioned liquid-distributing plate, aperture maximum in described liquid distributing hole is d
p, aperture minimum in described liquid distributing hole is d
p1, wherein, 0.3d
p1≤ d
p≤ 3d
p1.
Present invention also offers a kind of liquid distributor, have liquid-distributing plate, described liquid-distributing plate is the liquid-distributing plate as described in above-mentioned any one.
Present invention also offers a kind of downward film evaporator, comprise liquid distributor, described liquid distributor is liquid distributor as above.
As can be seen from above-mentioned technical scheme, liquid-distributing plate provided by the invention, the inlet-duct area of liquid distributing hole is greater than or less than its discharge area, that is, the inlet-duct area of liquid distributing hole and its discharge area unequal.Therefore, the longitudinal section of liquid distributing hole non-rectangle, when spraying fluid, because the port of export changes relative to the channeling direction of entrance point for fluid, avoiding fluid and forming backflow vortex region at the boundary of the port of export.And then the energy loss avoiding generation vortex to increase, and, avoid the unstability that vortex brings to liquid distributor interflow, avoid the steady flow (or uniform spraying) destroying lower one deck liquid-distributing plate, moreover, avoid the bubble produced because of vortex to pile up, improve the flow uniformity of liquid distributing hole inner fluid.
Present invention also offers a kind of downward film evaporator and the liquid distributor with above-mentioned liquid-distributing plate.Because above-mentioned liquid-distributing plate has above-mentioned technique effect, downward film evaporator and the liquid distributor with above-mentioned liquid-distributing plate also should have same technique effect, to introduce no longer in detail and all within protection domain at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of Longitudinal cross section schematic of liquid-distributing plate of the prior art;
Fig. 2 is the first Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 3 is the second Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 4 is the third Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 5 is the 4th kind of Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 6 is the 5th kind of Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 7 is the 6th kind of Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 8 is the 7th kind of Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Fig. 9 is the 8th kind of Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention;
Figure 10 is the structural representation of the liquid distributor in the embodiment of the present invention;
Figure 11 is the first branch's schematic diagram of liquid distributing hole on the liquid-distributing plate in the embodiment of the present invention;
Figure 12 is the second branch schematic diagram of liquid distributing hole on the liquid-distributing plate in the embodiment of the present invention;
Figure 13 is the third branch's schematic diagram of liquid distributing hole on the liquid-distributing plate in the embodiment of the present invention;
Figure 14 is the 4th kind of branch's schematic diagram of liquid distributing hole on the liquid-distributing plate in the embodiment of the present invention.
Detailed description of the invention
The invention discloses a kind of liquid-distributing plate, formed to avoid backflow vortex region.The invention also discloses a kind of downward film evaporator and the liquid distributor with above-mentioned liquid-distributing plate.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 2, Fig. 2 is the first Longitudinal cross section schematic of the liquid-distributing plate in the embodiment of the present invention.
Embodiments provide a kind of liquid-distributing plate, comprise plate body and be opened in the liquid distributing hole 11 on plate body, wherein, the quantity of liquid distributing hole 11 is multiple, and the inlet-duct area of single liquid distributing hole 11 is greater than or less than its discharge area.
Wherein, the inlet-duct area of liquid distributing hole 11 is the entrance point area of liquid distributing hole 11 near the feed tube 2 of liquid distributor, and the discharge area of liquid distributing hole 11 is the port of export area of liquid distributing hole 11 away from the feed tube 2 of liquid distributor.
The liquid-distributing plate that the embodiment of the present invention provides, the inlet-duct area of liquid distributing hole 11 is greater than or less than its discharge area, that is, the inlet-duct area of liquid distributing hole 11 and its discharge area unequal.Therefore, the longitudinal section of liquid distributing hole 11 non-rectangle, when spraying fluid, because the port of export changes relative to the channeling direction of entrance point for fluid, avoiding fluid and forming backflow vortex region at the boundary of the port of export.And then the energy loss avoiding generation vortex to increase, and, avoid the unstability that vortex brings to liquid distributor interflow, avoid the steady flow (or uniform spraying) destroying lower one deck liquid-distributing plate, moreover, avoid the bubble produced because of vortex to pile up, improve the flow uniformity of liquid distributing hole 11 inner fluid.
For the ease of processing, single liquid distributing hole 11 is processed as flaring hole or convergent hole.The perforate mode adjusted for liquid distributing hole 11 is only needed to complete.Because the liquid distributing hole 11 on liquid-distributing plate is multiple, whole liquid distributing hole 11 all can be processed as flaring hole; Also whole liquid distributing hole 11 all can be processed as convergent hole; A part in liquid distributing hole 11 can also be processed as flaring hole, a part is processed as convergent hole.
Wherein, flaring hole and liquid distributing hole 11 expand gradually along its import to the sectional area of Way out, make import sectional area be less than discharge area.Convergent hole variation tendency is just the opposite.
In order to further facilitate processing, liquid distributing hole 11 is processed as bellmouth or shoulder hole.Wherein, the central axis of liquid distributing hole 11 is in plate body.Also the through hole of arcuate socket or other structures can be processed as.
In the liquid-distributing plate that the embodiment of the present invention provides, liquid distributing hole 11 is bellmouth, and its inwall is the cambered surface of plane or the camber towards liquid distributing hole 11.That is, when the inwall of liquid distributing hole 11 is plane, this liquid distributing hole 11 is conical bore.When the inwall of liquid distributing hole 11 is towards the cambered surface of the camber of liquid distributing hole 11, this liquid distributing hole 11 is trumpet-shaped arc taper hole.Also the inwall of liquid distributing hole 11 can be set to the cambered surface of the camber of liquid distributing hole 11 dorsad.Because liquid distributing hole 11 is bellmouth, reduce the flow resistance of liquid distributing hole 11 inner fluid.
In the first embodiment, as Fig. 2 to Fig. 7, liquid distributing hole 11 comprises flaring hole and convergent hole.Namely the part in multiple liquid distributing hole 11 is flaring hole, and a part is convergent hole.Convergent hole is arranged at the higher-pressure region A of plate body, and flaring hole is arranged at the low-pressure area of plate body.Wherein, the higher-pressure region A of plate body is the region of plate body near feed tube 2 port of export of liquid distributor, and the low-pressure area of plate body is the region of plate body away from feed tube 2 port of export of liquid distributor.Feed tube 2 due to liquid distributor is arranged at the centre of plate body mostly, and flaring hole is arranged at low-pressure area, not only reduces the flow resistance of low-pressure area, and can reduce the deposition rate of bubble at liquid distributing hole 11 outlet edge of phase transformation generation in fluid.Convergent hole is positioned at higher-pressure region A (flow region near feed tube 2), not only can reduce the energy loss that fluid impact produces to a certain extent, also more fluid can be impelled to flow toward low-pressure area by reducing flow, improving the interflow uniformity.
Wherein, liquid distributing hole 11 is with the liquid distributing hole 11 of tubaeform (its inwall is towards the cambered surface of the camber of liquid distributing hole 11) for optimum, and being secondly conical liquid distributing hole 11, is shoulder hole again.
In order to improve the stability that fluid flows in liquid distributing hole 11, the varying aperture of liquid distributing hole 11 is unsuitable excessive.Therefore, the little end cross-sectional area of liquid distributing hole 11 is S
1, its large end cross-sectional area is S
2, S
2≤ 4S
1.
Preferably, S
2=2S
1.
In the second embodiment, as Fig. 8 and Fig. 9, liquid distributing hole 11 is combination bore, and plate body is provided with away from the side of the import of liquid distributing hole 11 and stretches out limit, stretches out limit and plate body form liquid distributing hole 11 outlet away from liquid distributing hole 11 edge of the side of the import of liquid distributing hole 11.Stretch out limit by arranging, guiding function is played for the fluid flowed out by liquid distributing hole 11, further avoid the generation of backflow vortex region.
Because the manufacturing process of combination bore is more complicated and stretch out limit and have certain size than through hole, in order to avoid stretching out limit and plate body interferes, preferably, the liquid distributing hole 11 on the undermost liquid-distributing plate of liquid distributor is combination bore.
Stretching out limit is the inclined side arranged along the centerline dip of liquid distributing hole 11.Wherein, stretching out limit can tilt along the direction away from plate body to the direction of the center line near liquid distributing hole 11, also can tilt along the direction away from plate body to the direction of the center line away from liquid distributing hole 11.As shown in Figure 8, stretch out limit can along away from plate body direction near liquid distributing hole 11 center line direction tilt.By above-mentioned setting, facilitate the processing of stretching out limit.
What also can adopt other structures stretches out limit.As shown in Figure 9, stretch out limit and comprise the vertical edge of center line setting and the fillet of vertical connecting limit and plate body that are parallel to liquid distributing hole 11.Although make to stretch out the complexity in the structural rate above-described embodiment on limit, the convenient discharge area controlling liquid distributing hole 11.
In order to save material, reducing the interference of stretching out between limit and its Surrounding Parts, stretching out outlying one end from plate body and being less than 5mm to the distance of plate body.Preferably, stretching out outlying one end from plate body to the distance of plate body is 1mm.
In the liquid-distributing plate that the present embodiment provides, in order to ensure liquid-distributing plate intensity and cloth liquid effect thereof, the distance L between adjacent two liquid distributing holes 11, wherein, 50mm≤L≤200mm.Preferably, the distance L between adjacent two liquid distributing holes 11 is 100mm.
Further, the quantity being positioned at the liquid distributing hole 11 of the higher-pressure region A of plate body is less than the quantity of the liquid distributing hole 11 of the low-pressure area being positioned at plate body.By the adjustment of the quantity of liquid distributing hole 11 in higher-pressure region A on plate body and low-pressure area, further increase the cloth liquid uniformity of liquid-distributing plate.
As shown in Figure 10, the aperture being positioned at the liquid distributing hole 11 of the higher-pressure region A of plate body is less than the aperture of the liquid distributing hole 11 of the low-pressure area being positioned at plate body, and aperture is the entrance point diameter of liquid distributing hole 11.Equally, improve the cloth liquid uniformity of liquid-distributing plate.
According to feed tube in liquid distributor 2 relative position with liquid-distributing plate, determine higher-pressure region A and low-pressure area, adopt localized variation distribution, namely the aperture of higher-pressure region A (just to feed tube 2 place) is compared with little reduction and quantity is few.
In order to evenly excessive, the aperture difference of adjacent two liquid distributing holes 11 is unsuitable excessive.Therefore, in the present embodiment, the aperture difference of adjacent two liquid distributing holes 11 is no more than 3mm.Preferably, the aperture difference of adjacent two liquid distributing holes 11 is 1mm.
Further, maximum in liquid distributing hole 11 aperture is d
p, aperture minimum in liquid distributing hole 11 is d
p1, wherein, 0.3d
p1≤ d
p≤ 3d
p1, arrive evenly excessive effect.
As shown in figure 11, being distributed as of liquid distributing hole 11 is interspersed and the aperture of liquid distributing hole 11 is identical.
As shown in figure 12, being distributed as of liquid distributing hole 11 is interspersed and the aperture of liquid distributing hole 11 is not identical.Wherein, liquid distributing hole 11 comprises the first liquid distributing hole 11A of minor diameter and large diameter second liquid distributing hole 11B.Wherein, the first liquid distributing hole 11A is positioned at higher-pressure region A.
As shown in figure 13, being distributed as of liquid distributing hole 11 is uniformly distributed and the aperture of liquid distributing hole 11 is identical.
As shown in figure 14, being distributed as of liquid distributing hole 11 is uniformly distributed and the aperture of liquid distributing hole 11 is not identical.Wherein, liquid distributing hole 11 comprises the first liquid distributing hole 11A of minor diameter and large diameter second liquid distributing hole 11B.Wherein, the first liquid distributing hole 11A is positioned at higher-pressure region A.
The embodiment of the present invention additionally provides a kind of liquid distributor, has liquid-distributing plate, and wherein, liquid-distributing plate is as any one liquid-distributing plate above-mentioned.Because above-mentioned liquid-distributing plate has above-mentioned technique effect, the liquid distributor with above-mentioned liquid-distributing plate also should have same technique effect, introduces no longer in detail at this.
Wherein, the liquid-distributing plate in liquid distributor mostly is double-deck or three layers.And the feed tube 2 in liquid distributor can be multiple, also can be single.
In like manner, the embodiment of the present invention additionally provides a kind of downward film evaporator, comprises above-mentioned liquid distributor, has above-mentioned technique effect equally.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (17)
1. a liquid-distributing plate, comprise plate body and be opened in the liquid distributing hole (11) on described plate body, it is characterized in that, the inlet-duct area of described liquid distributing hole (11) is greater than or less than its discharge area.
2. liquid-distributing plate as claimed in claim 1, it is characterized in that, described liquid distributing hole (11) is flaring hole and/or convergent hole.
3. liquid-distributing plate as claimed in claim 2, it is characterized in that, described liquid distributing hole (11) is bellmouth or shoulder hole.
4. liquid-distributing plate as claimed in claim 3, it is characterized in that, described liquid distributing hole (11) is bellmouth, and its inwall is the cambered surface of plane or the camber towards described liquid distributing hole (11).
5. liquid-distributing plate as claimed in claim 2, it is characterized in that, described liquid distributing hole (11) comprises described flaring hole and described convergent hole;
Described convergent hole is arranged at the higher-pressure region (A) of described plate body, and described flaring hole is arranged at the low-pressure area of described plate body.
6. liquid-distributing plate as claimed in claim 5, it is characterized in that, the little end cross-sectional area of described liquid distributing hole (11) is S
1, its large end cross-sectional area is S
2, S
2≤ 4S
1.
7. liquid-distributing plate as claimed in claim 1, it is characterized in that, described liquid distributing hole (11) is combination bore, described plate body is provided with away from the side of the import of described liquid distributing hole (11) and stretches out limit, described in stretch out limit and described plate body form described liquid distributing hole (11) outlet away from described liquid distributing hole (11) edge of the side of the import of described liquid distributing hole (11).
8. liquid-distributing plate as claimed in claim 7, is characterized in that, described in stretch out the inclined side of limit for arranging along the centerline dip of described liquid distributing hole (11).
9. liquid-distributing plate as claimed in claim 7, is characterized in that, described in stretch out limit and comprise the vertical edge that the center line that is parallel to described liquid distributing hole (11) is arranged and the fillet connecting described vertical edge and described plate body.
10. liquid-distributing plate as claimed in claim 7, is characterized in that, described in stretch out outlying one end from described plate body and be less than 5mm to the distance of described plate body.
11. liquid-distributing plates as claimed in claim 1, is characterized in that, the distance L between adjacent two described liquid distributing holes (11), wherein, and 50mm≤L≤200mm.
12. liquid-distributing plates as claimed in claim 1, is characterized in that, the quantity being positioned at the described liquid distributing hole (11) of the higher-pressure region (A) of described plate body is less than the quantity of the described liquid distributing hole (11) of the low-pressure area being positioned at described plate body.
13. liquid-distributing plates as described in any one of claim 1-12, it is characterized in that, the aperture being positioned at the described liquid distributing hole (11) of the higher-pressure region (A) of described plate body is less than the aperture of the described liquid distributing hole (11) of the low-pressure area being positioned at described plate body, and described aperture is the entrance point diameter of described liquid distributing hole (11).
14. liquid-distributing plates as claimed in claim 13, is characterized in that, the aperture difference of adjacent two described liquid distributing holes (11) is no more than 3mm.
15. liquid-distributing plates as claimed in claim 13, it is characterized in that, aperture maximum in described liquid distributing hole (11) is d
p, aperture minimum in described liquid distributing hole (11) is d
p1, wherein, 0.3d
p1≤ d
p≤ 3d
p1.
16. 1 kinds of liquid distributors, have liquid-distributing plate (1), it is characterized in that, described liquid-distributing plate (1) is the liquid-distributing plate as described in any one of claim 1-15.
17. 1 kinds of downward film evaporators, comprise liquid distributor, it is characterized in that, described liquid distributor is liquid distributor as claimed in claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236809.9A CN104826351B (en) | 2015-05-11 | 2015-05-11 | Downward film evaporator, liquid distributor and liquid-distributing plate thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236809.9A CN104826351B (en) | 2015-05-11 | 2015-05-11 | Downward film evaporator, liquid distributor and liquid-distributing plate thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104826351A true CN104826351A (en) | 2015-08-12 |
| CN104826351B CN104826351B (en) | 2016-07-06 |
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| CN109550376A (en) * | 2017-09-26 | 2019-04-02 | 萍乡市普天高科实业有限公司 | A kind of equipment and its technique for flue gas desulfurization and denitrification |
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| CN111991824A (en) * | 2020-08-24 | 2020-11-27 | 江苏一万节能科技股份有限公司 | Flow-guiding type liquid distribution plate in falling film evaporator and use method thereof |
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| CN109550376A (en) * | 2017-09-26 | 2019-04-02 | 萍乡市普天高科实业有限公司 | A kind of equipment and its technique for flue gas desulfurization and denitrification |
| CN109550378A (en) * | 2017-09-26 | 2019-04-02 | 萍乡市普天高科实业有限公司 | Low-temp desulfurization denitration device and its technique in a kind of flue gas |
| CN109550379A (en) * | 2017-09-26 | 2019-04-02 | 萍乡市普天高科实业有限公司 | A kind of equipment and its technique for low-temp desulfurization denitration in flue gas |
| CN107441750B (en) * | 2017-09-26 | 2020-05-01 | 天津科技大学 | Sub-boiling distillation device and application thereof |
| CN111991823A (en) * | 2020-08-21 | 2020-11-27 | 江苏一万节能科技股份有限公司 | Fluid distribution plate for falling film evaporator |
| CN111991824A (en) * | 2020-08-24 | 2020-11-27 | 江苏一万节能科技股份有限公司 | Flow-guiding type liquid distribution plate in falling film evaporator and use method thereof |
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