CN201527201U - Spraying heat exchanger - Google Patents
Spraying heat exchanger Download PDFInfo
- Publication number
- CN201527201U CN201527201U CN2009200594930U CN200920059493U CN201527201U CN 201527201 U CN201527201 U CN 201527201U CN 2009200594930 U CN2009200594930 U CN 2009200594930U CN 200920059493 U CN200920059493 U CN 200920059493U CN 201527201 U CN201527201 U CN 201527201U
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- China
- Prior art keywords
- heat exchanger
- tube
- spray
- housing
- refrigerant
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- Expired - Fee Related
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Abstract
The utility model provides a spraying evaporator used by a refrigeration system, wherein a refrigerant distributor stretches across the tube plates at two ends of a shell and is positioned above the heat exchange tube bundle in the shell; the refrigerant distributor leads the liquid refrigerant to be evenly distributed on the heat exchange tube bundle and to form thin film evaporation outside the heat exchange tube, thus improving the heat exchange efficiency of the evaporator. The spraying evaporator greatly reduces the charging rate of system working medium, has high unit operating efficiency, good environmental protection property and stable and reliable oil return, improves the unit operating performance and reduces environmental pollution.
Description
Technical field
The utility model relates to refrigeration plant, is specifically related to a kind of spray-type heat exchanger.
Background technology
At present, the shell-and-tube evaporator that uses in central air-conditioning mainly contains dry type, forms such as full-liquid type and fountain.The evaporation mode of flooded evaporator is pool boiling evaporation, and the heat-exchanging tube bundle major part is immersed in the refrigerant liquid, and refrigerant liquid evaporates after having absorbed the heat that the heat-exchanging tube bundle conduction comes.Flooded evaporator is a kind of evaporimeter efficiently, but owing to heat-exchanging tube bundle will be immersed in the refrigerant liquid, the charging amount of refrigerant is very big, and refrigerator oil and refrigerant dissolve each other, and causes compressor oil return difficulty.
The utility model content
The purpose of this utility model is the deficiency at flooded evaporator, provides a kind of and makes it when reaching the flooded evaporator heat exchange efficiency, reduces the coolant injection amount, and improves the spray-type evaporator of compressor oil return effect.
The utility model is achieved by the following technical programs:
A kind of spray-type heat exchanger, comprise the tube sheet at housing, housing two ends, the end cap that is connected with tube sheet and the bobbin carriage that is connected with end cap, be provided with heat exchanger tube between two tube sheets, tube sheet is provided with pore, heat exchanger tube is set in the pore of tube sheet, across housing two ends tube sheet and be positioned at housing heat-exchanging tube bundle top place and be provided with and be used for refrigerant is distributed to coolant distributor on the heat exchanger tube.
Described coolant distributor comprises refrigerant inlet, the person in charge who is connected with the refrigerant inlet, the distributor pipe that is arranged on person in charge both sides and by baffle plate, shrouding, the groove position that is formed by connecting of distribution grid again, described distributor pipe places the groove position.
The cloth tubular construction of heat-exchanging tube bundle is also different with flooded evaporator, and the topmost comb of heat-exchanging tube bundle is the triangular stringing, and main effect is the distribution that further improves refrigerant; Mid portion is a corner triangular stringing, and leaves gas channel between several combs of being separated by, and is beneficial to the circulation of the gas behind the cooling medium liquid evacuator body, avoids producing irregular air-flow in heat-exchanging tube bundle, destroys the formation of cooling medium liquid body thin film; The foot comb of heat-exchanging tube bundle is the triangular stringing.By the special stringing of heat-exchanging tube bundle, the formation of the irregular mobile destruction cooling medium liquid body thin film of cold media gas in tube bank is avoided in flowing of control cold media gas.
As preferred version of the present utility model, preferably in housing, be provided for supporting the support plate of heat-exchanging tube bundle, support plate preferably adopts polypropylene material to make, and on support plate, tube sheet, be provided with tie rod hole, also should between two tube sheets pull bar be set, pull bar is set in the tie rod hole and welds with support plate and tube sheet.Pull bar one end vertically pass on the every support plate tie rod hole and with the end face of a tube sheet by being threaded, the pull bar other end is then with last piece support plate welding or use nut screwing clamping.
Further, for determining the quality and the water content of housing inner refrigerant, so in some liquid-sighting glass are set on housing.
Further, also be provided with pull bar between two tube sheets described in the utility model.
Described heat exchanger tube is for there being machine heat exchanger.
Described housing is provided with refrigerant inlet and refrigerant exit, and refrigerant is sprinkled upon on the heat-exchanging tube bundle uniformly by coolant distributor, and makes liquid refrigerants form thin film evaporation outside heat exchanger tube, and the gas after the evaporation is discharged by refrigerant exit.
Also be provided with an oil-out on the described housing.By the evaporation of heat-exchanging tube bundle bottom heat exchanger tube, the lubricating oil in the refrigerant liquid is concentrated, can directly get back to compressor by oil return opening.
The utility model compared with prior art has the following advantages:
Evaporimeter is one of extremely important and essential parts of water resource heat pump and other refrigerating air conditioning devices, and its structure and performance have determined the efficient and the working medium charging amount of unit to a great extent.Evaporation mode of the present utility model is a thin film evaporation, coolant distributor is positioned at the top of heat-exchanging tube bundle and is communicated with the refrigerant inlet, refrigerant liquid is by can being sprayed on heat-exchanging tube bundle uniformly behind the coolant distributor, form one deck cooling medium liquid body thin film outside heat exchanger tube, the cooling medium liquid body thin film evaporates after having absorbed the heat that the heat-exchanging tube bundle conduction comes.Spray-type evaporator can meet or exceed the flooded evaporator heat exchange efficiency, also has the following advantages simultaneously: 1) spray-type evaporator is a kind of thin film evaporator, has reduced the charging amount of refrigerant greatly; 2) thin film evaporation efficient height improves the evaporimeter heat exchange efficiency; 3) oil return is effective, and through after the thin film evaporation, most refrigerant is evaporated, and the mixing material of refrigerator oil and refrigerant is concentrated and falls base of evaporator, can directly draw back compressor.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model sectional view;
Fig. 3 is another sectional view of the utility model;
The specific embodiment
Below in conjunction with example and accompanying drawing the utility model is described in further detail.
As shown in Figure 1, 2, 3, the utility model comprises the tube sheet 2 at housing 1, housing 1 two ends, the end cap that is connected with tube sheet 23 and the bobbin carriage 4 that is connected with end cap 3, and housing 1 is a cylindrical section and welds a closed container of formation with tube sheet 2.Between two tube sheets 2, be provided with some heat exchanger tubes 5, support plate 6 and pull bar 7.Described heat exchanger tube 4 comprises the body of being made by materials such as carbon steel, stainless steel, alloys; Consider that support plate 5 of the present utility model needs low cost of manufacture and environment friendly and pollution-free, so adopt polypropylene to make.
Across housing 1 two ends tube sheet 2 and be positioned at housing 1 heat-exchanging tube bundle top place and be provided with and be used for refrigerant is distributed to coolant distributor 13 on the heat exchanger tube 4.Described coolant distributor 13 comprises refrigerant inlet 10, with refrigerant inlet 10 persons in charge that are connected, be arranged on the distributor pipe of person in charge both sides and by baffle plate, shrouding 18, the groove position that is formed by connecting of distribution grid again, described distributor pipe places the groove position.Refrigerant liquid enters in the coolant distributor 13 through refrigerant inlet 10, by the uniform distribution on the realization of the runner in the coolant distributor 13 vertical and horizontal, by being arranged on the aperture ejection of coolant distributor 13 belows, refrigerant liquid is sprinkled upon above the heat-exchanging tube bundle uniformly at last.
The cloth tubular construction of heat-exchanging tube bundle is also different with flooded evaporator, and the topmost comb of heat-exchanging tube bundle is the triangular stringing, and main effect is the distribution that further improves refrigerant; Mid portion is a corner triangular stringing, and leaves gas channel between several combs of being separated by, and is beneficial to the circulation of the gas behind the cooling medium liquid evacuator body, avoids producing irregular air-flow in heat-exchanging tube bundle, destroys the formation of cooling medium liquid body thin film; The foot comb of heat-exchanging tube bundle is the triangular stringing, because the characteristic of spray-type evaporator thin film evaporation, for avoiding occurring on the heat-exchanging tube bundle phenomenon of " drying up ", the supply of refrigerant liquid is greater than the evaporation capacity of spray-type evaporator.Like this, the cooling medium liquid that is not evaporated is known from experience the bottom of falling spray-type evaporator, 1/3 of the about not spray-type evaporator housing internal diameter of the liquid level of this part refrigerant, the evaporating principle of the heat exchanger tube of this part is the same with flooded evaporator, so with heat exchanger tube arrange tightr, by the evaporation of heat exchanger tube, make lubricating oil further concentrate, can directly get back to compressor by oil return opening.
Also be provided with tie rod hole 9 on the every support plate 6 of the present utility model.Tie rod hole 9 numbers in the present embodiment are set to 4 at least, and the position of the tie rod hole 9 on every support plate 6 is identical.One end of described pull bar 7 vertically passes the tie rod hole 9 on the support plate 6 and is connected by tight split nut with the end face of a tube sheet 2, and the other end of pull bar 7 is then tightened with last piece support plate 6 welding or by double nut and is connected.
The utility model housing is provided with refrigerant inlet 10 and refrigerant exit 11, and refrigerant is sprinkled upon on the heat-exchanging tube bundle uniformly by coolant distributor 13, and makes liquid refrigerants form thin film evaporation outside heat exchanger tube, and the gas after the evaporation is discharged by refrigerant exit 11.
Also be provided with an oil-out on the described housing.The refrigeration oil of separating after the evaporation then comes together in the oil catcher of evaporimeter bottom, is depressed into compressor suction duct by control by gases at high pressure, sucks compressor and realizes oil return.
Claims (9)
1. spray-type heat exchanger, comprise the tube sheet at housing, housing two ends, the end cap that is connected with tube sheet and the bobbin carriage that is connected with end cap, be provided with heat exchanger tube between two tube sheets, tube sheet is provided with pore, heat exchanger tube is set in the pore of tube sheet, it is characterized in that, across housing two ends tube sheet and be positioned at housing heat-exchanging tube bundle top place and be provided with and be used for refrigerant is distributed to coolant distributor on the heat exchanger tube.
2. spray-type heat exchanger according to claim 1, it is characterized in that, described coolant distributor comprises refrigerant inlet, the person in charge who is connected with the refrigerant inlet, the distributor pipe that is arranged on person in charge both sides and by baffle plate, shrouding, the groove position that is formed by connecting of distribution grid again, described distributor pipe places the groove position.
3. spray-type heat exchanger according to claim 2 is characterized in that the triangular stringing is pressed on the top of heat-exchanging tube bundle, and corner triangular stringing is pressed at the middle part of heat exchanger tube, and the bottom of heat-exchanging tube bundle is the triangular stringing.
4. spray-type heat exchanger according to claim 3 is characterized in that, is provided for supporting the support plate of heat-exchanging tube bundle in housing.
5. spray-type heat exchanger according to claim 4 is characterized in that, between two tube sheets pull bar is set.
6. spray-type heat exchanger according to claim 5 is characterized in that, is equipped with tie rod hole on described support plate, the tube sheet, and pull bar is set in the tie rod hole and welds with support plate and tube sheet.
7. spray-type heat exchanger according to claim 6 is characterized in that, pull bar one end vertically pass on the every support plate tie rod hole and with the end face of a tube sheet by being threaded, the pull bar other end is then with last piece support plate welding or use nut screwing clamping.
8. according to each described spray-type heat exchanger in the claim 1 to 7, it is characterized in that housing bottom is provided with oil return opening, case top is provided with refrigerant exit.
9. according to each described spray-type heat exchanger in the claim 1 to 7, it is characterized in that, on housing, be provided for determining the quality of housing inner refrigerant and the liquid-sighting glass of water content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200594930U CN201527201U (en) | 2009-06-30 | 2009-06-30 | Spraying heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200594930U CN201527201U (en) | 2009-06-30 | 2009-06-30 | Spraying heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527201U true CN201527201U (en) | 2010-07-14 |
Family
ID=42518487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200594930U Expired - Fee Related CN201527201U (en) | 2009-06-30 | 2009-06-30 | Spraying heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286910A (en) * | 2018-03-08 | 2018-07-17 | 广州汉正能源科技有限公司 | A kind of novel supercooling water preparation apparatus and method |
| CN110411243A (en) * | 2019-08-09 | 2019-11-05 | 山东密友机械有限公司 | Flue gas waste heat recovery detachably sprays dust-removing heat exchanger |
-
2009
- 2009-06-30 CN CN2009200594930U patent/CN201527201U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286910A (en) * | 2018-03-08 | 2018-07-17 | 广州汉正能源科技有限公司 | A kind of novel supercooling water preparation apparatus and method |
| CN110411243A (en) * | 2019-08-09 | 2019-11-05 | 山东密友机械有限公司 | Flue gas waste heat recovery detachably sprays dust-removing heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20170630 |