CN203323597U - Anti-freezing heat exchanger - Google Patents
Anti-freezing heat exchanger Download PDFInfo
- Publication number
- CN203323597U CN203323597U CN2013202157982U CN201320215798U CN203323597U CN 203323597 U CN203323597 U CN 203323597U CN 2013202157982 U CN2013202157982 U CN 2013202157982U CN 201320215798 U CN201320215798 U CN 201320215798U CN 203323597 U CN203323597 U CN 203323597U
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- China
- Prior art keywords
- heat exchanger
- water inlet
- tube
- coil circuit
- branched pipe
- Prior art date
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Abstract
The utility model discloses an anti-freezing heat exchanger, belongs to the field of air conditioning systems, and solves the technical problem that a conventional heat exchanger cannot drain completely, so that heat exchange tubes are frozen and cracked. The anti-freezing heat exchanger comprises a heat exchanger box body, a water inlet collection pipe, a water outlet collection pipe and a plurality of coil loops, wherein the plurality of the coil loops are arranged and mounted in a height direction of the heat exchanger box body; the coil loops and the water outlet collection pipe are communicated through water outlet branch pipes; the coil loops and the water inlet collection pipe are communicated through water inlet branch pipes; and connecting ends of the water inlet branch pipe and coil loops are higher than connecting ends of the water inlet branch pipes and the water inlet collection pipes. The anti-freezing heat exchanger is applied to heat exchangers, particularly surface coolers.
Description
[technical field]
The utility model relates to a kind of heat exchanger, and especially surface cooler, belong to the air-conditioning system field.
[background technology]
The surface cooler of air-conditioning system, the air conditioning water (chilled water) mobile by the inside is cooling the air of the outer heat exchange fin of flowing pipe, blower fan is delivered to the field of employment cooling by the cold air after cooling, chilled water is taken back refrigeration unit from the water return pipeline of surface cooler by absorbed heat, emit after heat, cooling the air that is sent back to again surface cooler heat absorption, cool stream warp, so constantly circulation.
In industry, the heat exchanger tube of heat exchanger mainly adopts Φ 16, Φ 12.7, Φ 9.52, Φ 7 etc. at present, and because heat exchange tube diameter is little, water can produce viscous force; As Fig. 1, due to the tube connector of industry existing structure heat exchanger water inlet gathering tube and heat exchanger tube for being horizontally disposed with, cause each loop lowest part to have a heat exchanger tube at least in without the drainage state, the viscous force effect of water makes this part heat exchanger tube exist the full packages ponding can't Natural excrement, when unit is stopped using or unit operation surface cooler while not working in the winter time, once flow through, the gas flow temperature of surface cooler, lower than 0 ℃, just likely causes the heat exchanger tube bursting by freezing of full packages ponding part.Although can adopt heater to preheat, add the methods such as anti-icing fluid, water pump interlock control in prior art, avoid heat exchanger tube by bursting by freezing, these methods can increase product and operating cost, and actual antifreezing effect is also undesirable.
[summary of the invention]
The utility model provides a kind of heat exchanger, can make its inner chilled water discharge smoothly, avoids heat exchanger tube by bursting by freezing.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of freeze-proof heat exchanger, comprise box heat exchanger, water inlet gathering tube, water outlet gathering tube and some coil circuit, described some coil circuit are arranged and are installed along the box heat exchanger short transverse, between coil circuit and water outlet gathering tube, by the water outlet branched pipe, be communicated with, between coil circuit and water inlet gathering tube, by the water inlet branched pipe, is communicated with, the link of water inlet branched pipe and coil circuit is higher than the link of intake branched pipe and the gathering tube of intaking.
Further, described coil circuit comprises a plurality of heat exchanger tubes and the bridge piece that described a plurality of heat exchanger tubes are connected, the heat exchanger tube of lowest order in described water inlet branched pipe terminal pad tube loop.
Further, in described coil circuit, the position of leading portion heat exchanger tube is not less than the position of back segment heat exchanger tube.
Further, described water inlet branched pipe comprises the drop section of oblique extension, the high order end terminal pad tube loop of described drop section, and the low order end of described drop section connects the water inlet gathering tube.
Further, the high order end of described drop section is provided with the upper linkage section of straight extension, for the terminal pad tube loop.
Further, described coil circuit is provided with the enlarging of the upper linkage section of pegging graft.
Further, the low order end of described drop section is provided with the lower linkage section of straight extension, for connecting the water inlet gathering tube.
The beneficial effects of the utility model:
Between the coil circuit of the utility model heat exchanger and water inlet gathering tube, by the water inlet branched pipe, is communicated with, and the link of water inlet branched pipe and coil circuit is higher than the link of intake branched pipe and the gathering tube of intaking; When heat exchanger quits work while discharging water, because height of formation between the height link of coil circuit is poor, make the chilled water in coil circuit to be back in the water gathering tube and to discharge under Action of Gravity Field, prevented that chilled water from accumulating in coil circuit, thereby avoided the situation of heat exchanger tube low temperature bursting by freezing to occur.Scheme compared to existing technology, drainaging scheme of the present utility model is simple in structure, and implementation cost is low, and the chilled water discharge is clean, thoroughly.
These characteristics of the present utility model and advantage will be below the specific embodiment, accompanying drawing in detailed exposure.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the utility model is described further:
The syndeton schematic diagram that Fig. 1 is prior art heat exchanger tube connector;
The structural representation that Fig. 2 is the utility model heat exchanger preferred embodiment;
The schematic diagram of arranging that Fig. 3 is heat exchanger tube in the utility model heat exchanger preferred embodiment;
The syndeton schematic diagram that Fig. 4 is water inlet branched pipe in the utility model heat exchanger preferred embodiment;
The another syndeton schematic diagram that Fig. 5 is water inlet branched pipe in the utility model heat exchanger preferred embodiment.
[specific embodiment]
The utility model proposes a kind of freeze-proof heat exchanger, comprise box heat exchanger, water inlet gathering tube, water outlet gathering tube and some coil circuit, described some coil circuit are arranged and are installed along the box heat exchanger short transverse, between coil circuit and water outlet gathering tube, by the water outlet branched pipe, be communicated with, between coil circuit and water inlet gathering tube, by the water inlet branched pipe, is communicated with, the link of water inlet branched pipe and coil circuit is higher than the link of intake branched pipe and the gathering tube of intaking.When heat exchanger quits work while discharging water, because height of formation between the height link of coil circuit is poor, make the chilled water in coil circuit to be back in the water gathering tube and to discharge under Action of Gravity Field, prevented that chilled water from accumulating in coil circuit, thereby avoided the situation of heat exchanger tube low temperature bursting by freezing to occur.
Technical scheme below in conjunction with the accompanying drawing of the utility model embodiment to the utility model embodiment is explained and illustrated, but following embodiment is only preferred embodiment of the present utility model, not all.Embodiment based in embodiment, those skilled in the art are other embodiment that obtains under the prerequisite of not making creative work, all belong to protection domain of the present utility model.
With reference to Fig. 2,3,4, the heat exchanger of the present embodiment, comprise box heat exchanger 3, water inlet gathering tube 1, water outlet gathering tube 2 and some coil circuit 5, some coil circuit 5 are arranged and are installed along box heat exchanger 3 short transverses, be communicated with by water outlet branched pipe 6 between coil circuit 5 and water outlet gathering tube 2, be communicated with by the branched pipe 4 of intaking between coil circuit 5 and water inlet gathering tube 1.Generally, the water inlet of water inlet gathering tube 1 will be lower than the delivery port of water outlet gathering tube 2, when heat exchanger works, chilled water enters from the water inlet of water inlet gathering tube 1, through water inlet branched pipe 4, be assigned in each coil circuit 5, through after heat exchange, by water outlet branched pipe 6, converging in water outlet gathering tube 2 and discharge, when heat exchanger discharges water, by water inlet branched pipe 4, chilled water is converged in water gathering tube 1 and discharges.
Every group of coil circuit 5 comprises a plurality of heat exchanger tubes 50 and the bridge piece 51 that described a plurality of heat exchanger tubes 50 are connected, generally, it is in without the drainage state that coil circuit 5 low level places have a heat exchanger tube at least, because making this part heat exchanger tube, the effect of water viscous force exist the full packages ponding can't Natural excrement, when unit is stopped using or unit operation surface cooler while not working in the winter time, once flow through, the gas flow temperature of surface cooler, lower than 0 ℃, just likely causes the heat exchanger tube bursting by freezing of full packages ponding part.For this reason, the present embodiment adopts the design of the link of water inlet branched pipe 4 and coil circuit 5 higher than the link of water inlet branched pipe 4 and water inlet gathering tube 1, there is height fall between two links, make the chilled water in coil circuit 5 to be back to into water gathering tube 1 and to discharge to low side from high-end under Action of Gravity Field, prevented that chilled water from accumulating in coil circuit 5, thereby just avoided the situation of heat exchanger tube low temperature bursting by freezing to occur.
During concrete enforcement: water inlet branched pipe 4 comprises the drop section 40 of oblique extension, the heat exchanger tube of lowest order in the high order end terminal pad tube loop 5 of drop section 40, and the low order end of drop section 40 connects water inlet gathering tube 1.For convenience of connecting, the high order end of drop section 40 is provided with the upper linkage section 41 of straight extension, in heat exchanger tube 50 ends of lowest order, enlarging 501 is set, for the upper linkage section 41 of pegging graft simultaneously.The low order end of drop section 40 is provided with the lower linkage section 42 of straight extension, for connecting water inlet gathering tube 1.As long as guarantee that drop section 40 possesses certain gradient, its high order end must be terminal pad tube loop 5 certainly in theory, and low order end must be to connect water inlet branched pipe 4, with this energy height of formation drop, reaches the purpose by gravity drainage.Drop section 40 itself can straight tube, also the bend pipe of radian slightly.As shown in Figure 4, drop section 40 has the gradient of about 30 ° with respect to horizontal direction, and as shown in Figure 5, drop section 40 is vertically disposed with respect to horizontal direction, forms the gradient of 90 °.
With reference to Fig. 3, in order to improve drainage effect, coil circuit 5 is optimized to design, bridge piece 51 is obliquely installed, make the position of leading portion heat exchanger tube 50a in every group of coil circuit 5 be not less than the position of back segment heat exchanger tube 50b, in general, on the short transverse of box heat exchanger 3, the position of leading portion heat exchanger tube 50a all will be higher than the position of back segment heat exchanger tube 50b, only be arranged in the coil circuit 5 at box heat exchanger two ends Shang Xia 3, the position of leading portion heat exchanger tube is substantially concordant with the position of back segment heat exchanger tube.The drop caused by the inclination bridge piece when draining produces deadweight discharges the chilled water drainage in the leading portion heat exchanger tube, and chilled water can all drain from top to bottom.
The utility model embodiment is applied to heat exchanger, especially surface cooler.
By above-described embodiment, the purpose of this utility model is by fully effective having reached.The personage who is familiar with this skill should be understood that the utility model includes but not limited to the content of describing in accompanying drawing and the top specific embodiment.Any modification that does not depart from function and structure principle of the present utility model all will be included in the scope of claims.
Claims (7)
1. a freeze-proof heat exchanger, comprise box heat exchanger, water inlet gathering tube, water outlet gathering tube and some coil circuit, described some coil circuit are arranged and are installed along the box heat exchanger short transverse, between coil circuit and water outlet gathering tube, by the water outlet branched pipe, be communicated with, between coil circuit and water inlet gathering tube, by the water inlet branched pipe, is communicated with, it is characterized in that: the link of water inlet branched pipe and coil circuit is higher than the link of intake branched pipe and the gathering tube of intaking.
2. a kind of freeze-proof heat exchanger as claimed in claim 1 is characterized in that: described coil circuit comprises a plurality of heat exchanger tubes and by the bridge piece of described a plurality of heat exchanger tubes series connection, the heat exchanger tube of lowest order in described water inlet branched pipe terminal pad tube loop.
3. a kind of freeze-proof heat exchanger as claimed in claim 2, it is characterized in that: in described coil circuit, the position of leading portion heat exchanger tube is not less than the position of back segment heat exchanger tube.
4. as claim 1 or 2 or 3 described a kind of freeze-proof heat exchangers, it is characterized in that: described water inlet branched pipe comprises the drop section of oblique extension, the high order end terminal pad tube loop of described drop section, and the low order end of described drop section connects the water inlet gathering tube.
5. a kind of freeze-proof heat exchanger as claimed in claim 4, it is characterized in that: the high order end of described drop section is provided with the upper linkage section of straight extension, for the terminal pad tube loop.
6. a kind of freeze-proof heat exchanger as claimed in claim 5, is characterized in that: the enlarging of linkage section on described coil circuit is provided with and pegs graft.
7. a kind of freeze-proof heat exchanger as claimed in claim 4, it is characterized in that: the low order end of described drop section is provided with the lower linkage section of straight extension, for connecting the water inlet gathering tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202157982U CN203323597U (en) | 2013-04-19 | 2013-04-19 | Anti-freezing heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202157982U CN203323597U (en) | 2013-04-19 | 2013-04-19 | Anti-freezing heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323597U true CN203323597U (en) | 2013-12-04 |
Family
ID=49662939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202157982U Expired - Fee Related CN203323597U (en) | 2013-04-19 | 2013-04-19 | Anti-freezing heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203323597U (en) |
-
2013
- 2013-04-19 CN CN2013202157982U patent/CN203323597U/en not_active Expired - Fee Related
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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: 20131204 |