CN103851839A - Distributor applied to falling film type evaporator - Google Patents
Distributor applied to falling film type evaporator Download PDFInfo
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- CN103851839A CN103851839A CN201210514371.2A CN201210514371A CN103851839A CN 103851839 A CN103851839 A CN 103851839A CN 201210514371 A CN201210514371 A CN 201210514371A CN 103851839 A CN103851839 A CN 103851839A
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- box
- baffle plate
- gravity box
- gravity
- distributor
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Abstract
The invention discloses a distributor applied to a falling film type evaporator. The distributor comprises a baffle plate, a pressure box and a gravity box, wherein first through holes are uniformly and closely distributed in the bottom of the gravity box, the bottom of the gravity box are provided with a plurality of clapboards in the width direction, the pressure box is contained in the gravity box, an interval exists between the circumference of the pressure box and the circumference of the gravity box, second through holes are closely distributed in the top of the pressure box, the baffle plate is arranged above the pressure box, the two sides of the baffle plate are fixed on the gravity box, pore plates are arranged on the edges of the baffle plate and are provided with cover plates, intervals are reserved between the pore plates and the cover plates to form ventilation slots, and an inlet tube is arranged on the baffle plate and is communicated with the pressure box. According to the distributor applied to the falling film type evaporator, which is disclosed by the invention, the pressure potential energy and the gravity potential energy are mutually matched to distribute coolant working mediums, so that the reliability is high, the uniformity is good, the fluid distribution is uniform, the coolant working mediums are prevented from splashing and leaking, and the pressure loss is small; the distributor is matched with the falling film type evaporator, so as to be capable of fully exerting the performance advantages of the falling film type evaporator and to have good manufacturability.
Description
Technical field
The present invention relates to evaporator part, refer to particularly a kind of distributor for downward film evaporator.
Background technology
The course of work of downward film evaporator is generally: the fluid-mixing that becomes cryogenic liquid and cryogenic gas from condenser carries the high temperature condensed fluid of coming by throttling arrangement (as: electric expansion valve, restricting orifice etc.) throttling expansion, then enter the distributor in downward film evaporator, as required through laterally, longitudinally or 3 layers, 4 layers, 5 laminar flows flow out distributor gear after moving, drip and pour on heat exchanger tube, cold is passed to user, after self is evaporated, enter the air entry of compressor, after compression, enter condenser.Wherein, in said process, the uniform distribution of refrigerant medium is very important, distributor gear in all parts of falling film evaporator in core position, and at present in downward film evaporator distributor gear still not ideal enough on distributed uniform degree, can not reach requirement, therefore, for guaranteeing the uniform distribution of refrigerant medium, it is very necessary designing a kind of distributor gear reasonable and precision machining.
Summary of the invention
The object of the invention is provides a kind of distributor for downward film evaporator for the problems referred to above, and this distributor can be realized the uniform distribution of refrigerant medium, thereby provides good running environment for downward film evaporator.
For achieving the above object, the technical solution used in the present invention is: a kind of distributor for downward film evaporator, it comprises baffle plate, pressure cell and gravity box, described gravity box bottom even is densely covered with the first through hole and broad ways is provided with polylith dividing plate, in gravity box, pressure cell is housed, the surrounding of the surrounding of described pressure cell and gravity box leaves gap, the top of described pressure cell is evenly densely covered with the second through hole, the top of described pressure cell is provided with baffle plate, the both sides of described baffle plate are fixed on described gravity box, the edge of described baffle plate is provided with orifice plate, orifice plate is provided with cover plate, between orifice plate and cover plate, leave gap and form air drain, described baffle plate is provided with inlet tube, described inlet tube is communicated with described pressure cell.
The present invention coordinates equal liquid by pressure cell with gravity box, gas-liquid mixed refrigerant medium enters from inlet tube the pressure cell that bottom surface and periphery all seal, then evenly spray from second through hole at pressure cell top, impacting surrounding on baffle plate scatters, then the liquid runs down baffle plate side in gas-liquid mixed refrigerant medium is along falling into gravity box, finally evenly flow out from the first through hole of gravity box bottom, continuously flow on the heat exchanger tube of its below, and gas in gas-liquid mixed refrigerant medium is discharged from the outgassing groove between orifice plate and cover plate, sucked by compressor, this employing pressure potential and the gravitional force distribution refrigerant medium that cooperatively interacts, gas coolant working medium is separated in gravity box with liquid coolant working medium, and separatory reliability is high, good uniformity, separatory can be realized even, prevent the refrigerant medium leakage of splashing, and the pressure loss is little, downward film evaporator in the present invention and refrigeration industry matches, and can give full play to the performance advantage of falling film evaporator, the present invention is simple and compact for structure, good manufacturability.
Preferably, the quantity of the second through hole in described pressure cell is: 15～150, the aperture of described the second through hole is: 4mm～40mm.Utilize pressure potential to realize the uniform distribution for the first time of refrigerant medium in the second through hole, the second through hole evenly gathering can flow by homogenize liquid, prevents that the refrigerant medium spraying from pressure cell from splashing.
Further preferably, the quantity of the first through hole in described gravity box is: 800～4000, the aperture of described the first through hole is: 2mm～10mm.Utilize gravitional force to realize the final uniform distribution of refrigerant medium in the first through hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the distributor in downward film evaporator.
Fig. 2 is the decomposition texture schematic diagram of Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, be convenient to more clearly understand the present invention, but they do not form restriction to the present invention.
As Fig. 1, shown in Fig. 2, a kind of distributor for downward film evaporator, it comprises and being rectangle and gravity box 1 that top is unlimited, described gravity box 1 bottom even is densely covered with the first circular through hole 101, described gravity box 1 bottom broad ways is evenly provided with four elongated dividing plates 102 parallel to each other, described dividing plate 102 is provided with the pressure cell 2 that rectangle is hollow form, between the outside sidewall 4 of described pressure cell 2 and the inside side walls 5 of gravity box 1, leave gap, that is: in gravity box 1, pressure cell 2 is housed, the surrounding of pressure cell 2 does not contact with the surrounding of gravity box 1, left liquid gap, the top of described pressure cell 2 is evenly densely covered with the second circular through hole 201, the top of described pressure cell 2 is provided with baffle plate 3, the both sides of described baffle plate 3 are fixed on described gravity box 1, the top of gravity box 1 is covered, between pressure cell 2 tops in the top of described baffle plate 3 and gravity box 1, leave gap, the edge of described baffle plate 3 is provided with orifice plate 302, orifice plate 302 is provided with cover plate 303, between orifice plate 302 and cover plate 303, leave gap and form air drain, described baffle plate 3 is provided with inlet tube 301, described inlet tube 301 and described pressure cell 2 internal communication.Wherein, on the orifice plate 302 on gravity box 1 top, be provided with equally distributed pore, the preferred 0.01m of circulation area of pore
2～0.3m
2; In addition, preferably 15～150 of the quantity of the second through hole 201 in described pressure cell 2, the preferred 4mm～40mm in aperture of described the second through hole 201; Preferably 800～4000 of the quantity of the first through hole 101 in described gravity box 1, the preferred 2mm～10mm in aperture of described the first through hole 101; The height of the elongated dividing plate 102 of gravity box 1 bottom is preferably at 5 mm～50 mm.
The course of work of the present invention is as follows: gas-liquid mixed refrigerant medium enters after this distributor, be full of whole pressure cell 2, then the second through hole 201 arranging from pressure cell 2 tops evenly ejects, guarantee that it is to control the pressure drop of whole pressure cell 2 that uniform method is sprayed at the second through hole 201 places, and the pressure drop that guarantees actual pressure box 2 whether to equal the method for design pressure drop be to utilize fluid analysis software (CFD) simulation, gas-liquid mixed refrigerant medium is from the second through hole 201 evenly ejects, impact on baffle plate 3, drop or liquid stream surrounding are scattered, evenly fall after rise to gravity box 1 in the gap of liquid in gas-liquid mixed refrigerant medium between pressure cell 2 and gravity box 1 sidewall, continuously flow to by the first through hole 101 of gravity box 1 bottom on the heat exchanger tube of its below, the pore of gas in gas-liquid mixed refrigerant medium from the baffle plate 3 edge orifice plates 302 on gravity box 1 top flows out, and then the outgassing groove forming from the gap between orifice plate 302 and cover plate 303 is discharged, sucked by compressor, gas coolant working medium separates in gravity box 1 with liquid coolant working medium.
Claims (3)
1. the distributor for downward film evaporator, it comprises baffle plate (3), pressure cell (2) and gravity box (1), it is characterized in that: described gravity box (1) bottom even is densely covered with the first through hole (101) and broad ways is provided with polylith dividing plate (102), pressure cell (2) is housed in gravity box (1), the surrounding of the surrounding of described pressure cell (2) and gravity box (1) leaves gap, the top of described pressure cell (2) is evenly densely covered with the second through hole (201), the top of described pressure cell (2) is provided with baffle plate (3), the both sides of described baffle plate (3) are fixed on described gravity box (1), the edge of described baffle plate (3) is provided with orifice plate (302), orifice plate (302) is provided with cover plate (303), between orifice plate (302) and cover plate (303), leave gap and form air drain, described baffle plate (3) is provided with inlet tube (301), described inlet tube (301) is communicated with described pressure cell (2).
2. a kind of distributor for downward film evaporator according to claim 1, it is characterized in that: the quantity of the second through hole (201) in described pressure cell (2) is: 15～150, the aperture of described the second through hole (201) is: 4mm～40mm.
3. a kind of distributor for downward film evaporator according to claim 1, it is characterized in that: the quantity of the first through hole (101) in described gravity box (1) is: 800～4000, the aperture of described the first through hole (101) is: 2mm～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514371.2A CN103851839A (en) | 2012-12-03 | 2012-12-03 | Distributor applied to falling film type evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514371.2A CN103851839A (en) | 2012-12-03 | 2012-12-03 | Distributor applied to falling film type evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851839A true CN103851839A (en) | 2014-06-11 |
Family
ID=50859796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210514371.2A Pending CN103851839A (en) | 2012-12-03 | 2012-12-03 | Distributor applied to falling film type evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851839A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482400A (en) * | 2016-11-15 | 2017-03-08 | 顿汉布什(中国)工业有限公司 | A kind of for the allotter in downward film evaporator |
| CN106568242A (en) * | 2016-11-02 | 2017-04-19 | 西安交通大学 | Liquid film distributor for multi-row horizontal pipe bundles |
| CN107667265A (en) * | 2015-05-27 | 2018-02-06 | 开利公司 | Multistage distribution system for evaporator |
| CN111919075A (en) * | 2018-04-06 | 2020-11-10 | 开利公司 | Integrated separator and distributor |
-
2012
- 2012-12-03 CN CN201210514371.2A patent/CN103851839A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107667265A (en) * | 2015-05-27 | 2018-02-06 | 开利公司 | Multistage distribution system for evaporator |
| CN107667265B (en) * | 2015-05-27 | 2020-11-13 | 开利公司 | Multi-stage distribution system for evaporators |
| US11073314B2 (en) | 2015-05-27 | 2021-07-27 | Carrier Corporation | Mulitlevel distribution system for evaporator |
| CN106568242A (en) * | 2016-11-02 | 2017-04-19 | 西安交通大学 | Liquid film distributor for multi-row horizontal pipe bundles |
| CN106482400A (en) * | 2016-11-15 | 2017-03-08 | 顿汉布什(中国)工业有限公司 | A kind of for the allotter in downward film evaporator |
| CN106482400B (en) * | 2016-11-15 | 2019-04-12 | 顿汉布什(中国)工业有限公司 | A kind of distributor in downward film evaporator |
| CN111919075A (en) * | 2018-04-06 | 2020-11-10 | 开利公司 | Integrated separator and distributor |
| US11619428B2 (en) | 2018-04-06 | 2023-04-04 | Carrier Corporation | Integrated separator and distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |