CN103277944A - Dry-type evaporator - Google Patents
Dry-type evaporator Download PDFInfo
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- CN103277944A CN103277944A CN2013101707778A CN201310170777A CN103277944A CN 103277944 A CN103277944 A CN 103277944A CN 2013101707778 A CN2013101707778 A CN 2013101707778A CN 201310170777 A CN201310170777 A CN 201310170777A CN 103277944 A CN103277944 A CN 103277944A
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- return
- gas connection
- outgoing gas
- separatory hole
- air chamber
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Abstract
The invention discloses a dry-type evaporator which is a refrigerating system element. The dry-type evaporator solves the oil return problem of an existing evaporator under low flow speed of refrigerating fluid. The dry-type evaporator comprises a pipe body, an inner cavity of the pipe body is divided into an air return cavity and a liquid inlet cavity through a partition plate, the air return cavity is located above the liquid inlet cavity, an air inlet end of the air return cavity is communicated with a liquid outlet end of the liquid inlet cavity, the end portion, corresponding to an air outlet end of the air return cavity, of the pipe body is provided with a pipe plate, the pipe plate is connected with an air outlet connecting pipe which is communicated with the air return cavity, the air outlet connecting pipe is arranged corresponding to the lower portion of the air return cavity, and the height from the center of the air outlet connecting pipe to the partition plate is one fourth to one third the height of the air return cavity. The dry-type evaporator is used in air conditioner refrigerating and heat exchanging.
Description
Technical field
The present invention relates to evaporimeter, particularly a kind of dry evaporator.
Background technology
Have because of cold-producing medium flow velocity height fluorine collateral resistance big and cold-producing medium as the dry evaporator of one of conventional refrigeration four big elements and distribute and be difficult for uniform inherent defect, make overall efficiency far below full liquid unit.But since dry evaporator technical maturity and control system are simple and the filling weight of cold-producing medium much smaller than full liquid machine, so being applied in considerable time of dry evaporator is still irreplaceable.Existing dry evaporator generally adopts quadritube-pass, employing two tube sides of caliber below 9.52mm, the cold-producing medium flow velocity is more than 10m/s, guarantee oil return and the fluorine collateral resistance is bigger, the liquid distributing device of evaporimeter also has capillary and inlet full-enclosed liquid separatnig plate simultaneously, the capillary knockout is made comparatively complicated, and cost is higher and cause second throttle to increase the separatory resistance easily, though liquid separatnig plate feed liquor evenly can be sprayed can not with first pass heat exchanger tube corresponding dispensing one by one.
Summary of the invention
The purpose that the present invention will reach just provides a kind of dual system dry evaporator that solves the oil return problem of evaporimeter under the low flow velocity of cold-producing medium.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of dry evaporator, comprise body, the inner chamber of described body is divided into return-air chamber and admission chamber by demarcation strip, the inlet end that the return-air chamber is positioned at admission chamber top and return-air chamber is communicated with the outlet end of admission chamber, the end of outlet side, the corresponding return-air chamber of described body has tube sheet, described tube sheet is connected with the outgoing gas connection tube that is communicated with the return-air chamber, the bottom in the corresponding return-air of described outgoing gas connection tube chamber arranges, the center of outgoing gas connection tube to the height of described demarcation strip be the return-air chamber height 1/4～1/3.
Further, described outgoing gas connection tube is provided with one, 1/2 of the chord length that the internal diameter of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section.
Further, described outgoing gas connection tube is provided with two at least, and the parallel demarcation strip of outgoing gas connection tube is arranged, 1/2 of the chord length that the internal diameter sum of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section.
Further, described tube sheet is connected with feed liquor and takes over and liquid distributing device, liquid distributing device is between feed liquor adapter and tube sheet, described feed liquor is taken over corresponding admission chamber setting, described liquid distributing device comprises spacer ring and liquid separatnig plate, described spacer ring is fixedlyed connected with tube sheet, and described liquid separatnig plate is structure as a whole and corresponding admission chamber setting with spacer ring.
Further, be furnished with some heat exchanger tubes in the inner chamber of described body, described liquid separatnig plate has separatory hole and corresponding one by one with heat exchanger tube.
Further, described separatory hole comprises little separatory hole and big separatory hole, the diameter in described little separatory hole is smaller or equal to the diameter in big separatory hole, the endoporus that described feed liquor is taken over along its axially on liquid separatnig plate projection form view field, described little separatory hole is located in the described view field, and described big separatory hole is located in the view field zone in addition.
Further, the cross-sectional area sum in described separatory hole is greater than the area of view field.
Further, the cross-sectional area sum in described separatory hole is 1.5 times of area of view field.
Further, described separatory hole is uniform on liquid separatnig plate.
After adopting technique scheme, the present invention has following advantage: evaporimeter adopts two flow processs and reduces the cold-producing medium flow velocity, and can be dissolved with lubricating oil in the liquid refrigerant, after refrigerants vaporize, lubricating oil forms droplet, proportion is higher than fluorine steam, therefore the droplet of lubricating oil can accumulate in the bottom in return-air chamber relatively, under the prerequisite that the weld seam of considering to avoid outgoing gas connection tube does not interfere, the outgoing gas connection tube that will go out the fluorine pipe is arranged at evaporimeter return-air chamber lower position, make fluorine steam can take evaporimeter second flow process smoothly out of, i.e. the long-pending oil of bottom, return-air chamber.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is that the position in the relative return-air of outgoing gas connection tube chamber concerns schematic diagram;
Fig. 3 is the structural representation of liquid distributing device;
Fig. 4 is A place enlarged drawing among Fig. 3.
The specific embodiment
Be an embodiment of the present invention as illustrated in fig. 1 and 2, a kind of dry evaporator, comprise body 1, the inner chamber of body is divided into two return-air chambeies 101 and two admission chambers 102 by criss-cross demarcation strip 100, thereby form the dual system dry evaporator, the return-air chamber is positioned at the admission chamber top, the inlet end that is positioned at the return-air chamber of tube cavity the same side is communicated with the outlet end of admission chamber, the end of outlet side, the corresponding return-air chamber of body has tube sheet 11, and the outlet side in two return-air chambeies can be positioned at the same end of body, also can lay respectively at the two ends of body.Tube sheet is connected with shrouding assembly 13, the outgoing gas connection tube 2 that goes out the fluorine pipe is fixedly connected on tube sheet by the shrouding assembly, and outgoing gas connection tube is communicated with the return-air chamber, for the long-pending oil that can make bottom, return-air chamber can together be discharged along with fluorine steam, the bottom in the corresponding return-air of outgoing gas connection tube chamber arranges, the center of outgoing gas connection tube to the height h of demarcation strip be the return-air chamber height H 1/4～1/3.When outgoing gas connection tube only is provided with one, 1/2 of the chord length L that the inner diameter d of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section.In order to increase the coverage of outgoing gas connection tube, outgoing gas connection tube can arrange more than two or two, for example shown in Figure 2 when two outgoing gas connection tubes are set, the parallel demarcation strip of outgoing gas connection tube is arranged, 1/2 of the chord length L that the internal diameter sum 2d of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section summarizes, when N root outgoing gas connection tube is set, N * d〉L/2, N is positive integer.To the structure of outgoing gas connection tube and the particular design of stringing, make cold-producing medium can take the long-pending oil in bottom of evaporimeter second flow process smoothly out of by above-mentioned.
In order to make cold-producing medium can access even separatory, reduce the separatory resistance, to improve heat exchange efficiency, tube sheet is connected with feed liquor adapter 3 and liquid distributing device, feed liquor is taken over and also is connected in tube sheet by the shrouding assembly, and liquid distributing device is between shrouding assembly and tube sheet, and feed liquor is taken over corresponding admission chamber setting.As shown in Figure 3, liquid distributing device comprises spacer ring 4 and liquid separatnig plate 5, and spacer ring is fixedlyed connected with tube sheet, and for avoiding liquid separatnig plate and the leakage of spacer ring binding site, liquid separatnig plate is structure as a whole and corresponding admission chamber setting with spacer ring.Be furnished with some heat exchanger tubes 12 in the inner chamber of body, liquid separatnig plate has uniform separatory hole 51 and corresponding one by one with heat exchanger tube.In order to make cold-producing medium further obtain even separatory, as shown in Figure 4, the separatory hole comprises little separatory hole 511 and big separatory hole 512, the diameter in little separatory hole is smaller or equal to the diameter in big separatory hole, the endoporus that feed liquor is taken over along its axially on liquid separatnig plate projection form view field 31, little separatory hole is located in the view field, and big separatory hole is located in the view field zone in addition.In addition, the cross-sectional area sum in separatory hole is greater than the area of view field, and preferably the cross-sectional area sum in separatory hole is 1.5 times of area of view field.
If the usage level demarcation strip is divided into a return-air chamber and an admission chamber with the inner chamber of body, then form the single system dry evaporator, the structure of outgoing gas connection tube and layout principle communicate with above-mentioned dual system dry evaporator.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (9)
1. dry evaporator, comprise body (1), the inner chamber of described body is divided into return-air chamber (101) and admission chamber (102) by demarcation strip (100), the inlet end that the return-air chamber is positioned at admission chamber top and return-air chamber is communicated with the outlet end of admission chamber, the end of outlet side, the corresponding return-air chamber of described body has tube sheet (11), described tube sheet is connected with the outgoing gas connection tube (2) that is communicated with the return-air chamber, it is characterized in that: the bottom in the corresponding return-air of described outgoing gas connection tube chamber arranges, the center of outgoing gas connection tube to the height of described demarcation strip be the return-air chamber height 1/4～1/3.
2. dry evaporator according to claim 1, it is characterized in that: described outgoing gas connection tube is provided with one, 1/2 of the chord length that the internal diameter of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section.
3. dry evaporator according to claim 1, it is characterized in that: described outgoing gas connection tube is provided with two at least, and the parallel demarcation strip of outgoing gas connection tube is arranged, 1/2 of the chord length that the internal diameter sum of all outgoing gas connection tubes forms greater than demarcation strip cutting return-air chamber cross section.
4. according to claim 1 or 2 or 3 described dry evaporators, it is characterized in that: described tube sheet is connected with feed liquor and takes over (3) and liquid distributing device, liquid distributing device is between feed liquor adapter and tube sheet, described feed liquor is taken over corresponding admission chamber setting, described liquid distributing device comprises spacer ring (4) and liquid separatnig plate (5), described spacer ring is fixedlyed connected with tube sheet, and described liquid separatnig plate is structure as a whole and corresponding admission chamber setting with spacer ring.
5. dry evaporator according to claim 4, it is characterized in that: be furnished with some heat exchanger tubes (12) in the inner chamber of described body, described liquid separatnig plate has separatory hole (51) and corresponding one by one with heat exchanger tube.
6. dry evaporator according to claim 5, it is characterized in that: described separatory hole comprises little separatory hole (511) and big separatory hole (512), the diameter in described little separatory hole is smaller or equal to the diameter in big separatory hole, the endoporus that described feed liquor is taken over along its axially on liquid separatnig plate projection form view field (31), described little separatory hole is located in the described view field, and described big separatory hole is located in the view field zone in addition.
7. dry evaporator according to claim 6, it is characterized in that: the cross-sectional area sum in described separatory hole is greater than the area of view field.
8. dry evaporator according to claim 7 is characterized in that: the cross-sectional area sum in described separatory hole is 1.5 times of area of view field.
9. dry evaporator according to claim 5, it is characterized in that: described separatory hole is uniform on liquid separatnig plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170777.8A CN103277944B (en) | 2013-05-08 | 2013-05-08 | Dry-type evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170777.8A CN103277944B (en) | 2013-05-08 | 2013-05-08 | Dry-type evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103277944A true CN103277944A (en) | 2013-09-04 |
| CN103277944B CN103277944B (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310170777.8A Active CN103277944B (en) | 2013-05-08 | 2013-05-08 | Dry-type evaporator |
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| CN (1) | CN103277944B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994610A (en) * | 2014-06-05 | 2014-08-20 | 南通四方冷链装备股份有限公司 | Evaporator |
| CN104896803A (en) * | 2015-06-24 | 2015-09-09 | 台州龙江化工机械科技有限公司 | Multi-system flooded evaporator |
| CN104913551A (en) * | 2015-06-24 | 2015-09-16 | 台州龙江化工机械科技有限公司 | Multi-system dry-type evaporator and manufacture method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043863A (en) * | 1990-04-19 | 1992-01-08 | Daikin Ind Ltd | Dry shell and tube type evaporator |
| JPH04335969A (en) * | 1991-05-13 | 1992-11-24 | Daikin Ind Ltd | Dry evaporator |
| EP0782687A1 (en) * | 1994-09-23 | 1997-07-09 | Richard C. Kozinski | Integral evaporator and suction accumulator |
| CN2623313Y (en) * | 2003-04-30 | 2004-07-07 | 烟台冰轮股份有限公司 | A dry-type evaporator intermediate |
| US20050061025A1 (en) * | 2003-09-23 | 2005-03-24 | Ayub Zahid Hussain | End bonnets for shell and tube dx evaporator |
| CN201331215Y (en) * | 2009-01-21 | 2009-10-21 | 珠海格力电器股份有限公司 | Dry evaporator |
| CN202432765U (en) * | 2011-12-17 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Multi-section air chamber structure for dry evaporators |
| CN102997505A (en) * | 2012-11-29 | 2013-03-27 | 重庆美的通用制冷设备有限公司 | Single-flow dry evaporator |
| CN202915607U (en) * | 2012-10-18 | 2013-05-01 | 浙江盾安机电科技有限公司 | Dry type evaporator |
| CN202915608U (en) * | 2012-11-15 | 2013-05-01 | 劳特斯空调(江苏)有限公司 | Vertical layered structure of single-path evaporator for double machines |
-
2013
- 2013-05-08 CN CN201310170777.8A patent/CN103277944B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043863A (en) * | 1990-04-19 | 1992-01-08 | Daikin Ind Ltd | Dry shell and tube type evaporator |
| JPH04335969A (en) * | 1991-05-13 | 1992-11-24 | Daikin Ind Ltd | Dry evaporator |
| EP0782687A1 (en) * | 1994-09-23 | 1997-07-09 | Richard C. Kozinski | Integral evaporator and suction accumulator |
| CN2623313Y (en) * | 2003-04-30 | 2004-07-07 | 烟台冰轮股份有限公司 | A dry-type evaporator intermediate |
| US20050061025A1 (en) * | 2003-09-23 | 2005-03-24 | Ayub Zahid Hussain | End bonnets for shell and tube dx evaporator |
| CN201331215Y (en) * | 2009-01-21 | 2009-10-21 | 珠海格力电器股份有限公司 | Dry evaporator |
| CN202432765U (en) * | 2011-12-17 | 2012-09-12 | 重庆通用工业(集团)有限责任公司 | Multi-section air chamber structure for dry evaporators |
| CN202915607U (en) * | 2012-10-18 | 2013-05-01 | 浙江盾安机电科技有限公司 | Dry type evaporator |
| CN202915608U (en) * | 2012-11-15 | 2013-05-01 | 劳特斯空调(江苏)有限公司 | Vertical layered structure of single-path evaporator for double machines |
| CN102997505A (en) * | 2012-11-29 | 2013-03-27 | 重庆美的通用制冷设备有限公司 | Single-flow dry evaporator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994610A (en) * | 2014-06-05 | 2014-08-20 | 南通四方冷链装备股份有限公司 | Evaporator |
| CN104896803A (en) * | 2015-06-24 | 2015-09-09 | 台州龙江化工机械科技有限公司 | Multi-system flooded evaporator |
| CN104913551A (en) * | 2015-06-24 | 2015-09-16 | 台州龙江化工机械科技有限公司 | Multi-system dry-type evaporator and manufacture method |
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| Publication number | Publication date |
|---|---|
| CN103277944B (en) | 2015-02-04 |
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