CN111829211A - Evaporator with spray head - Google Patents
Evaporator with spray head Download PDFInfo
- Publication number
- CN111829211A CN111829211A CN202010819468.9A CN202010819468A CN111829211A CN 111829211 A CN111829211 A CN 111829211A CN 202010819468 A CN202010819468 A CN 202010819468A CN 111829211 A CN111829211 A CN 111829211A
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- CN
- China
- Prior art keywords
- pipe
- spray head
- liquid
- end cover
- heat exchange
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/021—Evaporators in which refrigerant is sprayed on a surface to be cooled
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
In order to reduce the filling amount of refrigerant in the traditional flooded evaporator and ensure the heat exchange effect, the invention provides the evaporator with the spray head, which adopts the mode of the combined action of the upper spray head and the lower spray head to spray high-pressure refrigerant liquid onto the surface of the heat exchange tube in the main shell, fully utilizes the increase of the kinetic energy of the fluid when the high-pressure liquid is converted to low pressure to strengthen the heat exchange, and can ensure that the surface of the heat exchange tube can obtain higher heat exchange coefficient without being immersed in the liquid, thereby having obvious effect on reducing the filling amount of the refrigerant.
Description
Technical Field
The invention belongs to the field of heat exchangers, and particularly relates to an evaporator with a spray head.
Background
The heat exchanger is generally used for providing heat exchange between fluids with different temperatures, and the structural form of the heat exchanger directly influences the heat exchange efficiency. In a refrigeration system, an evaporator is used as a main heat exchange device in the system, and the cost, the refrigerant charge amount and the system performance of the whole refrigeration system are directly influenced by the efficiency of the evaporator. The traditional flooded evaporator adopts a mode that a cooled medium is arranged in a pipe and a refrigerant is arranged on a shell side, and has the advantages of high heat exchange coefficient, large refrigerant charge amount and no effective utilization of the loss of direct throttling and pressure reduction of a high-pressure refrigerant.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an evaporator with a nozzle, which can convert a high-pressure fluid into a low-pressure fluid by using the nozzle, and the low-pressure fluid is sprayed at a high speed, thereby facilitating an increase in heat exchange coefficient, greatly reducing the amount of refrigerant charge, facilitating wide application, and having great significance in production practice.
An evaporator with a spray head mainly comprises the following parts: the upper part feed liquor pipe, lower part feed liquor pipe, upper portion shower nozzle case, lower part shower nozzle case, left end lid, the main casing body, the right-hand member lid, by coolant advances the pipe, by coolant exit tube, upper portion liquid pipe, upper portion shower nozzle, lower portion liquid pipe, lower portion shower nozzle pipe, lower part shower nozzle, heat exchange tube, support frame, fluid-discharge tube, upper portion liquid pipe support, lower portion liquid pipe support, cross slab, left end lid baffle, right-hand member lid baffle, right side outlet duct and left side outlet duct. The upper liquid inlet pipe distributes refrigerant high-pressure liquid to a plurality of upper spray heads through an upper liquid part pipe and an upper spray head pipe; the lower liquid inlet pipe distributes refrigerant high-pressure liquid to a plurality of lower spray heads through a lower liquid distribution pipe and a lower spray head pipe; the left end of the main shell is provided with a left end cover clapboard, the right end of the main shell is provided with a right end cover clapboard, the upper part of the main shell is connected with an upper spray head box, and the lower part of the main shell is connected with a lower spray head box to form a closed shell; the upper part liquid pipe, the upper spray head pipe and the upper spray head are positioned in the upper spray head box; the lower liquid dividing pipe, the lower spray head pipe and the lower spray head are positioned in the lower spray head box; the bottom of the lower spray head box is connected with a liquid discharge pipe;
the upper spray head box is positioned at the top of the main shell and is connected with an upper liquid inlet pipe and a lower liquid inlet pipe which are separately arranged;
the lower spray head box is positioned at the bottom of the main shell and can be used for storing a certain amount of redundant liquid;
the upper part liquid pipe is fixed with the upper part liquid pipe bracket through an upper part liquid inlet pipe;
the lower liquid dividing pipe is fixed through a lower liquid inlet pipe and a lower liquid pipe bracket;
the center positions of two sides of the main shell are respectively provided with a right air outlet pipe and a left air outlet pipe which are used for guiding out the evaporated refrigerant vapor;
the upper spray head is higher than the highest row of heat exchange tubes, has a downward spray opening, and sprays high-pressure liquid of the refrigerant into the surface of the upper heat exchange tubes in the low-pressure main shell;
the lower spray head is lower than the lowest row of heat exchange tubes, the spray opening is upward, and high-pressure liquid of the refrigerant is sprayed onto the surface of the lower heat exchange tubes in the low-pressure main shell;
a transverse partition plate is arranged in the middle of the inside of the right end cover, the inner space of the right end cover is divided into an upper part and a lower part, the upper part is connected with a cooling medium inlet pipe, and the lower part is connected with a cooling medium outlet pipe;
the right end cover partition plate is provided with a main shell on the left side and a right end cover on the right side, and is provided with a heat exchange pipe interface for separating the inner space of the main shell from the inner space of the right end cover;
the right side of the left end cover partition plate is provided with a main shell, the left side of the left end cover partition plate is provided with a left end cover, and a heat exchange pipe interface is arranged on the left end cover and is used for separating the inner space of the main shell from the inner space of the left end cover;
one end of the heat exchange tube is connected with the right end cover clapboard, and the other end of the heat exchange tube is connected with the left end cover clapboard;
the support frame is used for supporting the whole evaporator and enabling the liquid discharge pipe to have a certain height away from the ground.
The invention utilizes the upper spray head and the lower spray head to spray high-pressure refrigerant liquid into the low-pressure main shell, can effectively utilize the increase of fluid kinetic energy generated when high pressure changes into low pressure to strengthen the heat exchange effect, can ensure that the surfaces of all heat exchange tubes obtain more uniform heat exchange capacity by effectively arranging the spray heads, and simultaneously does not need the heat exchange tubes to be immersed into the refrigerant, thereby reducing the quality of the refrigerant in the evaporator.
Drawings
FIG. 1 is a schematic view of an appearance structure of an evaporator with a nozzle according to the present invention
FIG. 2 is a schematic view of the cross-sectional structure A-A' of the present invention
FIG. 3 is a schematic view of the cross-sectional structure of B-B' in the present invention
1 is upper portion feed liquor pipe, 2 is lower portion feed liquor pipe, 3 is upper portion shower nozzle case, 4 is lower portion shower nozzle case, 5 is the left end lid, 6 is the main casing, 7 is the right-hand member lid, 8 is by the cooling stop inlet pipe, 9 is by the coolant exit tube, 10 is upper portion liquid pipe, 11 is upper portion shower nozzle pipe, 12 is the upper portion shower nozzle, 13 is lower portion liquid pipe, 14 is lower portion shower nozzle pipe, 15 is the lower portion shower nozzle, 16 is the heat exchange tube, 17 is the support frame, 18 is the fluid-discharge tube, 19 is upper portion liquid pipe support, 20 is lower portion liquid pipe support, 21 is the cross slab, 22 is left end lid baffle, 23 is right-hand member lid baffle, 24 is the right side outlet duct, 25 is the left side outlet duct.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.
With reference to fig. 1, 2 and 3, the invention provides an evaporator with a spray head, which mainly comprises the following parts: the device comprises an upper liquid inlet pipe 1, a lower liquid inlet pipe 2, an upper spray head box 3, a lower spray head box 4, a left end cover 5, a main shell 6, a right end cover 7, a cooled medium inlet pipe 8, a cooled medium outlet pipe 9, an upper liquid pipe 10, an upper spray head pipe 11, an upper spray head 12, a lower liquid pipe 13, a lower spray head pipe 14, a lower spray head 15, a heat exchange pipe 16, a support frame 17, a liquid discharge pipe 18, an upper liquid pipe support frame 19, a lower liquid pipe support frame 20, a transverse partition plate 21, a left end cover partition plate 22, a right end cover partition plate 23, a right side air outlet pipe 24 and a left side air outlet pipe. The upper liquid inlet pipe 1 distributes refrigerant high-pressure liquid to a plurality of upper spray heads 11 through an upper part liquid pipe 10 and upper spray head pipes 11; the lower liquid inlet pipe 2 distributes refrigerant high-pressure liquid to a plurality of lower spray heads 15 through a lower liquid outlet pipe 13 and a lower spray head pipe 14; the left end of the main shell 6 is provided with a left end cover clapboard 22, the right end is provided with a right end cover clapboard 23, the upper part of the main shell 6 is connected with the upper spray head box 3, and the lower part of the main shell is connected with the lower spray head box 4 to form a closed shell; the upper partial liquid pipe 10, the upper spray head pipe 11 and the upper spray head 12 are positioned in the upper spray head box 3; the lower liquid pipe 13, the lower spray head pipe 14 and the lower spray head 15 are positioned in the lower spray head box 4; the bottom of the lower spray head box 4 is connected with a liquid discharge pipe 18;
the upper spray head box 3 is positioned at the top of the main shell 6, and the upper spray head box 3 is connected with an upper liquid inlet pipe 1 and a lower liquid inlet pipe 2 which are separately arranged;
the lower spray head box 4 is positioned at the bottom of the main shell 6 and can be used for storing a certain amount of redundant liquid;
the upper part liquid pipe 10 is fixed through an upper part liquid inlet pipe 1 and an upper part liquid pipe bracket 19;
the lower liquid distribution pipe 13 is fixed through a lower liquid inlet pipe 2 and a lower liquid distribution pipe bracket 20;
a right air outlet pipe 24 and a left air outlet pipe 25 are respectively arranged at the central positions of two sides of the main shell 6 and used for guiding out evaporated refrigerant vapor;
the upper spray head 12 with a downward spray opening;
the lower spray head 15 has a nozzle facing upwards;
a transverse partition plate 21 is arranged in the middle of the inside of the right end cover 7, the inner space of the right end cover 7 is divided into an upper part and a lower part, the upper part is connected with a cooling medium inlet pipe 8, and the lower part is connected with a cooling medium outlet pipe 9;
the right end cover partition plate 23 is provided with a main shell 6 on the left side and a right end cover 7 on the right side, and is provided with a heat exchange tube 16 interface for separating the inner space of the main shell 6 from the inner space of the right end cover 7;
the right side of the left end cover clapboard 22 is provided with a main shell 6, the left side is provided with a left end cover 5, and the left end cover clapboard is provided with a heat exchange tube 16 interface for separating the inner space of the main shell 6 from the inner space of the left end cover 5;
one end of the heat exchange tube 16 is connected with a right end cover clapboard 23, and the other end of the heat exchange tube is connected with a left end cover clapboard 22;
the support frame 17 is used for supporting the whole evaporator, and the liquid discharge pipe 18 has a certain height from the ground.
In summary, compared with the prior art, the present invention utilizes the upper nozzle 11 and the lower nozzle 15 to spray the high-pressure refrigerant liquid into the low-pressure main housing 6, and can effectively utilize the increase of the kinetic energy of the fluid generated when the high pressure changes into the low pressure to enhance the heat exchange effect, and through the effective arrangement of the nozzles, the surfaces of the heat exchange tubes 16 can obtain more uniform heat exchange capability, and simultaneously, the heat exchange tubes 16 are not required to be immersed into the refrigerant to reduce the mass of the refrigerant in the evaporator.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An evaporator with a spray head is characterized by mainly comprising the following parts: an upper liquid inlet pipe 1, a lower liquid inlet pipe 2, an upper spray head box 3, a lower spray head box 4, a left end cover 5, a main shell 6, a right end cover 7, a cooled medium inlet pipe 8, a cooled medium outlet pipe 9, an upper liquid distribution pipe 10, an upper spray head pipe 11, an upper spray head 12, a lower liquid distribution pipe 13, a lower spray head pipe 14, a lower spray head 15, a heat exchange pipe 16, a support frame 17, a liquid discharge pipe 18, an upper liquid distribution pipe support 19, a lower liquid distribution pipe support 20, a cross partition plate 21, a left end cover partition plate 22, a right end cover partition plate 23, a right side gas outlet pipe 24 and a left side gas outlet pipe 25;
the upper liquid inlet pipe 1 distributes refrigerant high-pressure liquid to a plurality of upper spray heads 11 through an upper part liquid pipe 10 and upper spray head pipes 11; the lower liquid inlet pipe 2 distributes refrigerant high-pressure liquid to a plurality of lower spray heads 15 through a lower liquid outlet pipe 13 and a lower spray head pipe 14; the left end of the main shell 6 is provided with a left end cover clapboard 22, the right end is provided with a right end cover clapboard 23, the upper part of the main shell 6 is connected with the upper spray head box 3, and the lower part of the main shell is connected with the lower spray head box 4 to form a closed shell; a liquid discharge pipe 18 is connected to the bottom of the lower head tank 4.
2. The upper head tank 3 as claimed in claim 1, wherein an upper part liquid pipe 10, an upper head pipe 11 and an upper head 12 are provided in the top of the main housing 6.
3. The lower head tank 4 according to claim 1, wherein a lower liquid pipe 13, a lower head pipe 14 and a lower head 15 are provided in the bottom of the main casing 6 for storing a certain amount of surplus liquid.
4. The main housing 6 according to claim 1, wherein a right side outlet pipe 24 and a left side outlet pipe 25 are provided at the central positions of both sides, respectively.
5. The upper spray head 12 of claim 1 wherein the spout is directed downwardly.
6. The lower spray head 15 of claim 1 wherein the spray orifice is directed upwardly.
7. Support frame 17 according to claim 1, for supporting the entire evaporator with the drain pipe 18 at a certain height from the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010819468.9A CN111829211A (en) | 2020-08-14 | 2020-08-14 | Evaporator with spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010819468.9A CN111829211A (en) | 2020-08-14 | 2020-08-14 | Evaporator with spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111829211A true CN111829211A (en) | 2020-10-27 |
Family
ID=72917892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010819468.9A Pending CN111829211A (en) | 2020-08-14 | 2020-08-14 | Evaporator with spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111829211A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704016Y (en) * | 2004-05-21 | 2005-06-08 | 余建华 | Vaporizor for refrigerator |
| CN101033901A (en) * | 2007-04-18 | 2007-09-12 | 王全龄 | Water source heat pump evaporator suitable for low-temperature water source |
| CN105042949A (en) * | 2015-09-01 | 2015-11-11 | 南京冷德节能科技有限公司 | Forced recycling complete spraying evaporator |
| CN207928749U (en) * | 2018-01-15 | 2018-10-02 | 广东闻扬环境科技有限公司 | The falling liquid film device of evaporator |
| WO2020034937A1 (en) * | 2018-08-14 | 2020-02-20 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporator |
-
2020
- 2020-08-14 CN CN202010819468.9A patent/CN111829211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2704016Y (en) * | 2004-05-21 | 2005-06-08 | 余建华 | Vaporizor for refrigerator |
| CN101033901A (en) * | 2007-04-18 | 2007-09-12 | 王全龄 | Water source heat pump evaporator suitable for low-temperature water source |
| CN105042949A (en) * | 2015-09-01 | 2015-11-11 | 南京冷德节能科技有限公司 | Forced recycling complete spraying evaporator |
| CN207928749U (en) * | 2018-01-15 | 2018-10-02 | 广东闻扬环境科技有限公司 | The falling liquid film device of evaporator |
| WO2020034937A1 (en) * | 2018-08-14 | 2020-02-20 | 约克（无锡）空调冷冻设备有限公司 | Falling film evaporator |
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