CN210532745U - Vertical flooded evaporator - Google Patents
Vertical flooded evaporator Download PDFInfo
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- CN210532745U CN210532745U CN201921220550.9U CN201921220550U CN210532745U CN 210532745 U CN210532745 U CN 210532745U CN 201921220550 U CN201921220550 U CN 201921220550U CN 210532745 U CN210532745 U CN 210532745U
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Abstract
The utility model discloses a vertical flooded evaporator, which comprises a housin, the end cover, the heat exchange tube, the inlet, the gas outlet, the water inlet, the delivery port, equal liquid board, the baffling board, look the liquid mirror, the relief valve, casing space divide into three region, refrigerant import one side is the branch liquid district, the centre is main evaporation zone, refrigerant export one side is the overheated area, the inside inlet of casing is equipped with the branch liquid board, the middle part is equipped with the flow equalizing board, water conservancy diversion components such as baffling board, the unequal heat exchange tube of distribution quantity in the casing, low temperature low pressure refrigerant liquid gets into the casing from the inlet, under the effect of flow equalizing board, refrigerant liquid evaporates into saturated gaseous state refrigerant through main evaporation section, saturated gaseous state refrigerant further absorbs heat at the overheated section and becomes overheated gaseous state refrigerant, get. Chilled water enters the heat exchange tube along the water inlet, flows back and forth between the end covers at the two sides of the shell, fully exchanges heat with low-temperature refrigerant liquid through the heat exchange tube, and the chilled water absorbing heat flows out of the flooded evaporator along the water outlet.
Description
Technical Field
The utility model relates to a domestic, commercial air conditioner, industrial refrigeration equipment's technical field especially relates to vertical flooded evaporator.
Background
At present, flooded evaporators in the refrigeration industry are all of horizontal structures, are large in size and are suitable for refrigeration equipment with large capacity. On the refrigeration equipment with small micro-capacity, the evaporator usually adopts a hydrophilic aluminum fin type, brazing sheet type and U-shaped tubular heat exchanger as the evaporator, compared with a flooded evaporator, the evaporator has the advantages of small heat exchange amount per unit area, low energy efficiency, and energy efficiency ratio COP (coefficient of performance) of below 3.5, and cannot meet the requirement of further improving the energy efficiency ratio COP (coefficient of performance) of the refrigeration equipment with small micro-capacity.
SUMMERY OF THE UTILITY MODEL
In order to improve the energy efficiency ratio of little micro-capacity refrigeration plant, realize the COP value (being close 6.0 or higher) the same with large capacity refrigeration plant to the extension is applied to domestic air conditioner, commercial air conditioner, industry refrigeration plant, realizes general extensive high-effect refrigeration and uses, the technical scheme of the utility model provides a vertical flooded evaporator. The method comprises the following specific steps:
the vertical flooded evaporator comprises a shell, wherein a water inlet and a water outlet are formed in an end cover at the top of the shell, a gas outlet is formed in the side face of the upper portion of the shell, a liquid inlet is formed in the side face of the bottom of the shell, a liquid equalizing plate is arranged inside the shell, at least one flow equalizing plate and a plurality of heat exchange tubes are arranged inside the shell, the flow equalizing plate is arranged between the liquid inlet and the gas outlet, a plurality of flow guide holes are formed in the flow equalizing plate, a liquid backflow port communicated with the shell is further formed in the middle of the shell, and the liquid backflow port is connected with a suction inlet of a Venturi.
Particularly, the end cover at the bottom of the shell is provided with a baffling chamber, and the side surface of the baffling chamber is provided with a sewage discharge interface.
Through the setting of end cover baffling room for form the rivers passageway that comes and goes many times between water inlet, baffling room and the delivery port, the heat transfer dwell time of extension refrigerated water, thereby better release refrigerated water heat guarantees the evaporation effect of evaporimeter. The blowdown interface of setting in the end cover inside for can regularly clear up the discharge to attachment, incrustation scale, dirt etc. in end cover, the heat exchange tube, guarantee the long-term high-efficient operation of evaporimeter.
Particularly, liquid viewing mirrors are arranged at the 1/3, 1/2 and 2/3 height positions of the shell, and a pressure detection interface and a temperature detection interface are further arranged on the shell.
Through the setting of looking the liquid mirror for the refrigerant liquid boiling state of evaporimeter can be observed by audio-visual, and simultaneously through the setting of pressure detection interface, temperature detection interface, make refrigerant pressure, the refrigerant temperature in the casing can be detected, read by real-time.
In particular, a safety valve port is arranged below the air outlet.
Particularly, the heat exchange tube adopts an external fin internal thread copper tube or the like high-efficiency copper tube.
Through the setting of outer wing internal thread copper pipe, increased the heat transfer area between the refrigerated water in refrigerant liquid and the heat exchange tube in the casing, strengthened the evaporation effect of refrigerant liquid, simultaneously because the spiral effect of internal thread pipe for the refrigerated water stream is high-speed spiral motion, reduces calcium magnesium ion's dirt deposit coefficient, reduces the deposit of dirt, guarantees the long-term high-efficient operation of heat exchange tube.
Particularly, the flow equalizing plate and the shell are connected in a welding mode of submerged arc welding, argon arc welding or high-frequency welding.
Particularly, the diameter of the diversion hole is adjusted according to the calculation of the flow rate of the refrigerant gas and is set to be 3-10 mm.
Compared with the prior art, the utility model beneficial effect who has is: the energy efficiency ratio of the small and micro capacity refrigeration equipment is improved, the COP value (close to 6.0 or higher) which is the same as that of the large capacity refrigeration equipment is realized, and the energy efficiency ratio of the small and micro capacity refrigeration equipment is extended and applied to household air conditioners, commercial air conditioners and industrial refrigeration equipment, and the universal and wide high-efficiency refrigeration application is realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention, in which:
fig. 1 is a front view of a vertical flooded evaporator disclosed in an embodiment of the invention.
Reference numerals: 1 shell, 2 end covers, 3 heat exchange tubes, 4 liquid inlets, 5 gas outlets, 6 water inlets, 7 water outlets, 8 liquid equalizing plates, 9 baffle plates, 10 liquid sight glass, 11 liquid equalizing plates, 12 oil liquid return ports, 13 baffling chambers and 14 Venturi ejector pumps
Detailed Description
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
At present, flooded evaporators in the refrigeration industry are all of horizontal structures, are large in size and are suitable for refrigeration equipment with large capacity. On the refrigeration equipment with small micro-capacity, the evaporator usually adopts a hydrophilic aluminum fin type, brazing sheet type and U-shaped tubular heat exchanger as the evaporator, compared with a flooded evaporator, the evaporator has the advantages of small heat exchange amount per unit area, low energy efficiency, and energy efficiency ratio COP (coefficient of performance) of below 3.5, and cannot meet the requirement of further improving the energy efficiency ratio COP (coefficient of performance) of the refrigeration equipment with small micro-capacity.
In order to improve the energy efficiency ratio of little micro-capacity refrigeration plant, realize the COP value (being close 6.0 or higher) the same with large capacity refrigeration plant to the extension is applied to domestic air conditioner, commercial air conditioner, industry refrigeration plant, realizes general extensive high-effect refrigeration and uses, the technical scheme of the utility model provides a vertical flooded evaporator. The technical scheme is as follows:
the invention is explained in further detail below with reference to fig. 1.
As shown in fig. 1, the vertical flooded evaporator comprises a shell 1, an end cover 2, heat exchange tubes 3, a liquid inlet 4, a gas outlet 5, a water inlet 6, a water outlet 7, a liquid equalizing plate 8, a baffle plate 9, a liquid viewing mirror 10, a safety valve and a detection element, wherein the shell 1 is divided into three areas, one side of the water inlet 6 for entering a refrigerant is a liquid separating area, the middle part of the shell is a main evaporation area, one side of the gas outlet 5 for discharging the refrigerant is a superheat area, the liquid equalizing plate 8 is arranged on the liquid inlet in the shell 1, the middle part of the shell is provided with flow guide members such as the flow equalizing plate 11 and the baffle plate 9, and the. The low-temperature low-pressure refrigerant liquid enters the shell 1 from the liquid inlet 4, the refrigerant liquid is evaporated into saturated gaseous refrigerant through the main evaporation section under the action of the flow equalizing plate 11, the saturated gaseous refrigerant further absorbs heat in the superheat section to form superheated gaseous refrigerant, and the superheated gaseous refrigerant enters the compressor through the gas outlet 5. Chilled water enters the heat exchange tube 3 along the water inlet 6, flows back and forth between the end covers at the two sides of the shell 1, fully exchanges heat with low-temperature refrigerant liquid through the heat exchange tube 3, and the chilled water absorbing heat flows out of the flooded evaporator along the water outlet 7.
Particularly, vertical flooded evaporator includes casing 1, 1 tip end cover of casing is equipped with water inlet 6 and delivery port 7, 1 upper portion side of casing is equipped with gas outlet 5, 1 bottom side of casing is equipped with inlet 4, 1 inside liquid board 8 that is equipped with of casing, 1 inside at least one flow equalizing plate 11 and many heat exchange tubes 3 of being equipped with of casing, flow equalizing plate 11 sets up the inlet with between the gas outlet, be equipped with a plurality of water conservancy diversion holes on the flow equalizing plate 11, 1 middle part of casing still be equipped with the fluid backward flow mouth 12 that casing 1 is linked together, fluid backward flow mouth 12 is connected with venturi ejector pump 14's sunction inlet.
Certainly, in order to facilitate sewage discharge, the end cover at the bottom of the shell 1 is provided with a baffling chamber 13, and the side surface of the baffling chamber is provided with a sewage discharge interface.
Through the setting of baffling room 13 for form the rivers passageway that comes and goes many times between water inlet 6, baffling room 13 and the delivery port 7, the heat transfer dwell time of extension refrigerated water, thereby better release refrigerated water heat guarantees the evaporation effect of evaporimeter. The blowdown interface of setting in the end cover inside for can regularly clear up the discharge to attachment, incrustation scale, dirt etc. in end cover, the heat exchange tube 3, guaranteed the long-term high-efficient operation of evaporimeter.
Particularly, the liquid viewing mirror 10 is arranged at the 1/3 height, 1/2 height and 2/3 height positions of the shell 1, and the shell 1 is also provided with a pressure detection interface and a temperature detection interface.
Through the setting of looking liquid mirror 10 for the refrigerant liquid boiling state of evaporimeter can be observed by audio-visual, and simultaneously through the setting of pressure detection interface, temperature detection interface, make refrigerant pressure, the refrigerant temperature in the casing 1 can be detected, read by real-time.
In practical products, a safety valve port is arranged below the air outlet 5 for pressure safety.
For higher heat exchange efficiency, the heat exchange tube 3 is an external-fin internal-thread copper tube or the like high-efficiency copper tube.
Through the setting of outer wing internal thread copper pipe, increased system refrigerant liquid in the casing 1 and the heat exchange tube 3 in the heat transfer area between the cold water, strengthened refrigerant liquid's evaporation effect, simultaneously because the spiral effect of internal thread pipe for frozen rivers are high-speed spiral motion, reduce calcium magnesium ion's dirt deposition coefficient, reduce the deposit of dirt, guarantee the long-term high-efficient operation of heat exchange tube 3.
The flow equalizing plate 11 and the shell 1 are connected by welding modes such as submerged arc welding, argon arc welding or high-frequency welding.
Particularly, the diameter of the diversion hole is 3-10 mm or is designed according to the calculation of the flow rate of the refrigerant gas flow.
Compared with the prior art, the utility model beneficial effect who has is: the energy efficiency ratio of the small and micro capacity refrigeration equipment is improved, the COP value (close to 6.0 or higher) which is the same as that of the large capacity refrigeration equipment is realized, and the energy efficiency ratio of the small and micro capacity refrigeration equipment is extended and applied to household air conditioners, commercial air conditioners and industrial refrigeration equipment, and the universal and wide high-efficiency refrigeration application is realized.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (8)
1. The vertical flooded evaporator is characterized by comprising a shell (1), wherein a water inlet (6) and a water outlet (7) are arranged on a top end cover (2) of the shell (1), a gas outlet (5) is arranged on the side surface of the upper portion of the shell (1), a liquid inlet (4) is arranged on the side surface of the bottom of the shell (1), a liquid equalizing plate (8) is arranged inside the shell (1), at least one flow equalizing plate (11) and a plurality of heat exchange tubes (3) are arranged inside the shell (1), the flow equalizing plate (11) is arranged between the liquid inlet (4) and the gas outlet (5), a plurality of flow guide holes are formed in the flow equalizing plate (11), a liquid backflow port (12) communicated with the shell (1) is further formed in the middle of the shell (1), and the liquid backflow port (12) is connected with a suction inlet of a Venturi injection pump (14).
2. A vertical flooded evaporator as claimed in claim 1, characterized in that the end cover (2) of the shell (1) is provided with a baffling chamber (13), and a drain outlet is provided on the side of the baffling chamber (13).
3. The vertical flooded-type evaporator of claim 1, wherein the shell (1) is provided with a liquid viewing mirror (10) at 1/3, 1/2 and 2/3, and the shell (1) is further provided with a pressure detection interface and a temperature detection interface.
4. A vertical flooded evaporator as claimed in claim 1, characterised in that the casing (1) is also provided with a safety valve interface.
5. A vertical flooded evaporator as claimed in claim 1, characterised in that the heat exchange tubes (3) are external-fin internal-threaded copper tubes or the like high-efficiency tubes.
6. The vertical flooded-type evaporator of claim 1, characterized in that the flow equalizing plate (11) and the shell (1) are connected by submerged arc welding, argon arc welding or high frequency welding.
7. The vertical flooded evaporator of claim 1, wherein the diameter of the diversion hole is adjusted according to the refrigerant gas flow rate, and is set to be 3mm to 10 mm.
8. A vertical flooded evaporator as claimed in claim 1, wherein the heat exchange tube is bounded by the oil return port (12), the upper part is a superheat section, the lower part is an evaporation section, the shell (1) is provided with a pressure sensor, a temperature sensor and a safety valve corresponding to the superheat section, and the shell is provided with a liquid level sensor and a plurality of parallel and staggered guide plates corresponding to the evaporation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220550.9U CN210532745U (en) | 2019-07-30 | 2019-07-30 | Vertical flooded evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220550.9U CN210532745U (en) | 2019-07-30 | 2019-07-30 | Vertical flooded evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN210532745U true CN210532745U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921220550.9U Active CN210532745U (en) | 2019-07-30 | 2019-07-30 | Vertical flooded evaporator |
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| CN (1) | CN210532745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296550A (en) * | 2019-07-30 | 2019-10-01 | 爱法空调冷冻科技(无锡)有限公司 | Vertical flooded evaporator |
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2019
- 2019-07-30 CN CN201921220550.9U patent/CN210532745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296550A (en) * | 2019-07-30 | 2019-10-01 | 爱法空调冷冻科技(无锡)有限公司 | Vertical flooded evaporator |
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Address after: No.15, Hanjiang Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: AIFA Technology (Wuxi) Co.,Ltd. Address before: No.15, Hanjiang Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: AGAF AIR CONDITIONING REFRIGERATION TECHNOLOGY WUXI Co.,Ltd. |