CN212902836U - Liquid distribution device and falling film unit - Google Patents
Liquid distribution device and falling film unit Download PDFInfo
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- CN212902836U CN212902836U CN202021131278.XU CN202021131278U CN212902836U CN 212902836 U CN212902836 U CN 212902836U CN 202021131278 U CN202021131278 U CN 202021131278U CN 212902836 U CN212902836 U CN 212902836U
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Abstract
The utility model discloses a cloth liquid device and falling liquid film unit. The liquid distribution device comprises a liquid storage mechanism extending along the longitudinal direction, a spraying mechanism and a liquid distribution mechanism used for conveying a refrigerant in the liquid storage mechanism into the spraying mechanism; the spraying mechanism is composed of a plurality of layers of spraying units, each spraying unit is composed of a plurality of spraying pipes extending longitudinally, and each spraying pipe is provided with a plurality of spraying holes. The utility model discloses a liquid distribution device makes the refrigerant can directly act on the evaporating pipe on a large scale, reduces the refrigerant to the damage of evaporating pipe, has reduced the dry district that evaporates of evaporating pipe, more fully effectively with the evaporating pipe contact realization heat transfer.
Description
Technical Field
The utility model relates to a cloth liquid equipment among falling liquid film unit, in particular to cloth liquid device and falling liquid film unit.
Background
Refrigerant is added from a liquid inlet of a falling film evaporator, refrigerant liquid is directly distributed on each evaporation tube through a spraying copper tube distribution and film forming device at the flow speed of 2.5m/s under the pressure of the condensation tube, and flows from top to bottom in a uniform film shape under the action of gravity, vacuum induction and air flow, heat exchange is carried out between the liquid and a heating medium in a tube pass in the flowing process until the refrigerant is partially vaporized, generated steam and liquid enter a separation chamber of the evaporator together, the steam and the liquid are fully separated, the steam enters a condenser for condensation (single-effect operation) or enters a next-effect evaporator as a heating medium, so that multi-effect operation is realized, and the liquid is discharged from the separation chamber.
In falling liquid film unit operation in-process, the refrigerant gets into inside the evaporimeter barrel with the compressor from the liquid state, because the gravity of self and great impact force direct action can make the evaporating pipe cause certain damage on the evaporating pipe, and the refrigerant that flows at a high speed when carrying out the heat transfer with the evaporating pipe, flow from heat exchange coil pipe top to below and carry out the heat transfer, because the refrigerant distributes unevenly, lead to the evaporating pipe region that evaporates futilely to appear, can not satisfy the heat transfer effect, so that when needing bigger heat transfer capacity, then need more evaporating pipes to satisfy the demand under equal proportion, thereby the cost of raw and other materials has been increased.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model provides a falling liquid unit that is used for reducing falling liquid film unit dry evaporation district's cloth liquid device and contains this cloth liquid device.
The technical scheme is as follows: the utility model relates to a liquid distribution device, which comprises a liquid storage mechanism, a spraying mechanism and a liquid separation mechanism, wherein the liquid storage mechanism extends along the longitudinal direction, and the liquid separation mechanism is used for sending a refrigerant in the liquid storage mechanism into the spraying mechanism; the spraying mechanism is composed of a plurality of layers of spraying units, each spraying unit is composed of a plurality of spraying pipes extending longitudinally, and each spraying pipe is provided with a plurality of spraying holes.
In an embodiment of the present invention, the spraying holes formed on the spraying pipe are uniformly distributed along the longitudinal direction.
In an embodiment of the present invention, the two adjacent layers of the spraying pipes in the spraying unit are arranged in a staggered manner.
The utility model discloses an in an embodiment, divide liquid mechanism to include a plurality of along longitudinal distribution divide liquid unit, every divide liquid unit including being located spray mechanism side along radial extension first branch liquid pipe and with a plurality of second branch liquid pipe of the horizontal extension of first branch liquid pipe intercommunication, first branch liquid pipe with stock solution mechanism intercommunication, every the position and every layer that the second divides the liquid pipe spray the unit corresponding and with every layer spray the shower intercommunication in the unit.
The utility model discloses an in the embodiment, stock solution mechanism is the stock solution pipe, it has a plurality of to divide the liquid hole to distribute on the stock solution pipe, first branch liquid pipe with divide liquid hole intercommunication.
In an embodiment of the present invention, the liquid distribution unit includes a liquid distribution header pipe connected to the first liquid distribution pipe and the liquid distribution hole.
The utility model relates to a falling film unit, including foretell cloth liquid device.
The utility model discloses an in an embodiment, falling liquid film unit includes the evaporation chamber, is located evaporation intracavity longitudinal extension's evaporating pipe and cloth liquid device, the evaporation chamber is provided with the inlet that is used for the refrigerant to get into, stock solution mechanism with the inlet intercommunication, the evaporating pipe is located and sprays between the unit.
Has the advantages that: (1) the utility model has the advantages that the liquid distribution device enables the refrigerant to directly act on the evaporating pipe in a large range, reduces the damage of the refrigerant to the evaporating pipe, reduces the dry evaporation area of the evaporating pipe, and more fully and effectively contacts with the evaporating pipe to realize heat exchange; (2) the spray pipes of the two adjacent layers are arranged in a staggered way, so that the space in the evaporation cavity is effectively utilized, and the heat exchange efficiency is improved; (3) the utility model discloses a make full use of evaporating pipe has improved the evaporation capacity of evaporimeter, reduce cost.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 1 of the present invention;
fig. 3 is a schematic view of a partial structure of embodiment 2 of the present invention.
Detailed Description
Example 1: as shown in fig. 1 and fig. 2, the liquid distribution device of the present invention includes a liquid storage mechanism 10 extending along the longitudinal direction, a spraying mechanism 20 and a liquid distribution mechanism 30 for sending the refrigerant in the liquid storage mechanism 10 into the spraying mechanism 20.
In this embodiment, the longitudinal direction is a direction of a Y axis in the drawing, the transverse direction is a direction of an X axis in the drawing, and the radial direction is a direction of a Z axis in the drawing.
In this embodiment, stock solution mechanism 10 is stock solution pipe 101, and stock solution mechanism 10 is the stock solution pipe 101 along longitudinal distribution, and it has a plurality of to divide liquid hole 102 to distribute on stock solution pipe 101, divides the even interval distribution of liquid hole 102 on stock solution pipe 101 diapire for in distributing the refrigerant in stock solution pipe 101 to dividing liquid mechanism 30, send to spraying mechanism 20 in by dividing liquid mechanism 30 again. The spraying mechanism 20 includes a plurality of spraying pipes 201, each spraying pipe 201 is correspondingly distributed above the evaporating pipe, and the refrigerant is uniformly sent to the evaporating pipe to avoid dry evaporation area of the evaporating pipe.
In this embodiment, the liquid separating mechanism 30 includes a plurality of liquid separating units 300 distributed along the longitudinal direction, each liquid separating unit 300 includes a first liquid separating pipe 301 located on the side surface of the spraying mechanism 20 and extending in the radial direction, in this embodiment, the first liquid separating pipes 301 extending in the radial direction may be distributed on both sides of the spraying mechanism 20, and a plurality of second liquid separating pipes 302 are respectively communicated with the first liquid separating pipes 301 on both sides.
In order to further save cost, in the embodiment, each liquid dividing unit 300 comprises a first liquid dividing pipe 301 which is provided with a radial extension at one side of the spraying mechanism 20, the first liquid dividing pipe 301 in each liquid dividing unit 300 is communicated with the liquid dividing hole 102 through a liquid dividing header pipe 303, namely, the liquid distributing holes 102 are communicated with the inlet of the liquid distributing main pipe 303, the outlet of the liquid distributing main pipe 303 is communicated with the inlet of the first liquid distributing pipe 301, a plurality of second liquid distributing pipes 302 which extend transversely are distributed in parallel along the radial direction, the inlets of the second liquid distributing pipes 302 are communicated with the first liquid distributing pipe 301, the other ends of the second liquid distributing pipes 302 are arranged in a closed way, the positions of the second liquid distributing pipes 302 correspond to the positions of the spray pipes 201 distributed on each layer, the liquid distributing device is used for distributing the refrigerant in the second liquid distributing pipe 302 to the spray pipes 201, and specifically, a plurality of connecting holes are distributed on the second liquid distributing pipe 302 and are used for being communicated with a plurality of spray pipes 201 distributed on each layer.
The arrangement directions of the plurality of liquid distribution units 300 can be the same or different, in an implementation scheme of the embodiment, two liquid distribution units 300 are arranged, the two liquid distribution units 300 are oppositely arranged, namely, two liquid distribution holes 102 are formed in the liquid storage pipe 101, each liquid distribution hole 102 is respectively communicated with one liquid distribution unit 300, namely, the liquid distribution main pipes 303 communicated with the two liquid distribution holes 102 respectively extend towards opposite directions, so that the first liquid distribution pipes 301 communicated with the liquid distribution main pipes 303 are located on different sides of the spraying mechanism 20, the inlet ends of the second liquid distribution pipes 302 communicated with the first liquid distribution pipes 301 are also located on different sides, the structure reduces the dry evaporation area of the evaporation pipe, the heat exchange effect is improved, and the structure cost is saved.
The spraying mechanism 20 in this embodiment includes a plurality of spraying unit 200, spraying unit 200 layering distributes, every spraying unit 200 comprises the shower 201 that is located same height of a plurality of longitudinal extension, shower 201 is along longitudinal distribution, every layer of shower 201 and second divide liquid pipe 302 intercommunication, a plurality of spraying hole 202 has been seted up on every shower 201 diapire, a plurality of spraying hole 202 seted up on shower 201 is along vertical evenly distributed, spraying hole 202 evenly divides the liquid to every evaporating pipe with the refrigerant in shower 201, realize even cloth liquid. In order to fully utilize the space in the evaporation cavity to improve the evaporation heat exchange effect, the spray pipes 201 in the two adjacent layers of spray units 200 are arranged in a staggered manner.
The working principle of the liquid distribution device is as follows: the refrigerant gets into liquid storage pipe 101, send the refrigerant to liquid separation house steward 303 from branch liquid hole 102 on the liquid storage pipe 101, liquid separation house steward 303 sends the refrigerant to being located in the first liquid branch pipe 301 that sprays 20 sides, the refrigerant that gets into first liquid branch pipe 301 is under the pressure effect, get into the second liquid branch pipe 302 with first liquid branch pipe 301 intercommunication, second liquid branch pipe 302 sends the refrigerant into with the shower 201 of second liquid branch pipe 302 intercommunication in, shower 201 evenly sends the refrigerant to evaporating pipe 2 through being located the hole 202 that sprays that sets up on shower 201, realize the even heat transfer of evaporating pipe and refrigerant.
Example 2: as shown in fig. 3, a falling film unit, including embodiment 1 liquid distribution device 3, it has evaporating pipe 2 to arrange the distribution in liquid distribution device 3, the evaporimeter structure in the falling film unit specifically includes evaporation chamber 1 (the cavity that is used for the heat transfer that the evaporimeter formed), it has longitudinal extension's evaporating pipe 2 to distribute in evaporation chamber 1, 2 crisscross distributions of evaporating pipe layering, every 2 top distributions of evaporating pipe have a shower 201, spray hole 202 along 2 direction evenly distributed of evaporating pipe on shower 201 with refrigerant evenly distributed to evaporating pipe 2, reduce evaporating pipe 2's dry steaming area, improve heat exchange efficiency, improve the heat transfer capacity of falling film unit.
In a specific application, the structure of the present embodiment may adopt a structural design with the following specifications:
a connecting pipe for leading in refrigerant is arranged in the barrel of the evaporator, the two ends of the connecting pipe are sealed by end plates, a small hole connected with a liquid storage pipe 101 is arranged below the connecting pipe to be used as a liquid inlet 40, the refrigerant liquid in the compressor is continuously connected into the liquid storage pipe 101 of the evaporator by utilizing high-pressure exhaust of the compressor, the refrigerant enters the liquid storage pipe 101 through the liquid inlet 40, and the liquid storage pipe 101 adopts a mode that
The seamless pipe, the liquid storage pipe 101 both ends are sealed, divide liquid house steward 303 and first minute liquid pipe 301 to adopt phi 9.52 to connect the copper pipe, liquid refrigerant sends into the liquid house steward 303 from two branch liquid holes 102 that set up on the liquid storage pipe 101, divide liquid house steward and first minute liquid pipe 301 to be phi 9.52 and connect the copper pipe, send into second minute liquid pipe 302 by first minute liquid pipe 301 again, second minute liquid pipe 302 is phi 6.35 and connects the copper pipe, that is, divide liquid mechanism 30 to comprise the connection copper pipe of different specifications, divide liquid house steward 303 and first minute liquid pipe 301 to adopt the connection copper pipe of diameter phi 9.52, the connection copper pipe of horizontal direction (horizontal) (second branch liquid pipe)Pipe 302) pipe diameter size can adopt the copper pipe that the diameter is the same with the spray copper pipe, all be phi 6.35 copper pipe, the refrigerant enters into the first layer in proper order from connecting the copper pipe, the second floor, the spray unit 200 of third layer, spray pipe 201 adopts spray copper pipe, spray copper pipe is the phi 6.35 copper pipe of certain distance directly over the evaporating pipe 2, spray copper pipe both ends are sealed, its length can be decided according to the tube sheet interval, open phi 1's aperture as spraying hole 202 directly under the spray copper pipe, the adjacent tube hole interval is between 30 ~ 50mm, spraying hole 202 evenly distributed is on spray copper pipe, spray pipe 201 and evaporating pipe 2 assemble in vertical direction one-to-one, the refrigerant flows to evaporating pipe 2 through spraying hole 202 (spraying hole 202 is the round hole structure) on the spray pipe 201 diapire at last, thereby reduce the region of doing the braising, reach the purpose of high-efficient heat transfer.
Claims (8)
1. The liquid distribution device is characterized by comprising a liquid storage mechanism (10) extending along the longitudinal direction, a spraying mechanism (20) and a liquid separating mechanism (30) used for conveying a refrigerant in the liquid storage mechanism (10) into the spraying mechanism (20); the spraying mechanism (20) is composed of a plurality of layers of spraying units (200), each spraying unit (200) is composed of a plurality of longitudinally extending spraying pipes (201), and each spraying pipe (201) is provided with a plurality of spraying holes (202).
2. The liquid distribution device according to claim 1, characterized in that a plurality of spray holes (202) formed in the spray pipe (201) are uniformly distributed along the longitudinal direction.
3. The liquid distribution device according to claim 1, wherein the spray pipes (201) in two adjacent layers of the spray units (200) are arranged in a staggered manner.
4. The liquid distribution device according to claim 1, wherein the liquid distribution mechanism (30) comprises a plurality of liquid distribution units (300) distributed along a longitudinal direction, each liquid distribution unit (300) comprises a first liquid distribution pipe (301) which is located at the side of the spraying mechanism (20) and extends along a radial direction and a plurality of second liquid distribution pipes (302) which are communicated with the first liquid distribution pipe (301) and extend along a transverse direction, the first liquid distribution pipe (301) is communicated with the liquid storage mechanism (10), and each second liquid distribution pipe (302) is located corresponding to each layer of the spraying units (200) and is communicated with the spraying pipes (201) in each layer of the spraying units (200).
5. The liquid distribution device according to claim 4, wherein the liquid storage mechanism (10) is a liquid storage pipe (101), a plurality of liquid distribution holes (102) are distributed on the liquid storage pipe (101), and the first liquid distribution pipe (301) is communicated with the liquid distribution holes (102).
6. The liquid distribution device according to claim 5, wherein the liquid distribution unit (300) comprises a liquid distribution manifold (303) connected with the first liquid distribution pipe (301) and the liquid distribution hole (102).
7. A falling film unit, characterized by comprising a liquid distribution device according to any one of claims 1 to 6.
8. The falling film unit according to claim 7, comprising an evaporation chamber (1), an evaporation tube (2) longitudinally extending in the evaporation chamber (1), and a liquid distribution device (3), wherein the evaporation chamber (1) is provided with a liquid inlet (40) for a refrigerant to enter, the liquid storage mechanism (10) is communicated with the liquid inlet (40), and the evaporation tube (2) is located between the spraying units (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021131278.XU CN212902836U (en) | 2020-06-17 | 2020-06-17 | Liquid distribution device and falling film unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021131278.XU CN212902836U (en) | 2020-06-17 | 2020-06-17 | Liquid distribution device and falling film unit |
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| CN212902836U true CN212902836U (en) | 2021-04-06 |
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| CN202021131278.XU Active CN212902836U (en) | 2020-06-17 | 2020-06-17 | Liquid distribution device and falling film unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011170A (en) * | 2021-10-26 | 2022-02-08 | 昌邑富润纺织科技有限公司 | High-temperature waste gas purification and heat absorption device for textile printing processing |
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2020
- 2020-06-17 CN CN202021131278.XU patent/CN212902836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011170A (en) * | 2021-10-26 | 2022-02-08 | 昌邑富润纺织科技有限公司 | High-temperature waste gas purification and heat absorption device for textile printing processing |
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