CN202719903U - Cooler with three tube passes - Google Patents
Cooler with three tube passes Download PDFInfo
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- CN202719903U CN202719903U CN 201220392745 CN201220392745U CN202719903U CN 202719903 U CN202719903 U CN 202719903U CN 201220392745 CN201220392745 CN 201220392745 CN 201220392745 U CN201220392745 U CN 201220392745U CN 202719903 U CN202719903 U CN 202719903U
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- tube
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- exchanging
- cooler
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Abstract
The utility model relates to a cooler with three tube passes. The cooler with the three tube passes comprises an air inlet, wherein the air inlet is connected with a diffuser, the diffuser is connected with a heat-exchanging component, the heat-exchanging component is connected with a collector, and the collector is connected with an air outlet. The heat-exchanging component comprises a cylindrical tube shell, tube plates used to seal two end faces are arranged at two ends of the tube shell, bundles of heat-exchanging tubes are arranged between the tube plates at two ends, each tube plate is provided with through holes which are connected with the heat-exchanging tubes, the tube shell is provided with a water inlet and a water outlet, and the diffuser and the collector are respectively provided with a pass-dividing separation plate which divides an inner cavity into two parts. According to the cooler with the three tube passes, the diffuser and the collector are respectively provided with the pass-dividing separation plate inside, so that the bundles of heat-exchanging tubes are divided into three groups, the flow of high-temperature waste gas inside the cooler is retraced twice, equivalently two tube passes are added, the heat-exchanging process is prolonged, and the heat-exchanging efficiency is improved. The cooler with the three tube passes achieves the maximum heat-exchanging effect in a relatively small outline space, reduces the temperature of discharged waste gas, improves the emission performance indexes of an engine of a car, and meets higher requirement of environment-friendly emission.
Description
Technical field
The utility model relates to a kind of three tube side coolers, is a kind of parts of automobile engine of light car, is the heat exchanger that a kind of vehicular engine cooling system for recycled exhaust gas uses.
Background technology
In order to enlarge as much as possible the space of taking of small passenger car, the space of engine compartment is more and more less, but the requirement to the engine automobile exhaust emissions improves day by day, Light-duty Vehicle is very limited with the space of gas recirculation system, even when discharge standard improves a level, need to improve heat exchange efficiency under the prerequisite of expansion space not, make cooler satisfy more higher leveled discharge standard.The volume of existing heat exchanger is excessive, and the heat exchanger of equal volume can not satisfy the requirement of heat exchange efficiency in other words.Reduced volume, raising heat exchange efficiency are the problems that modern heat exchanger must face.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of three tube side coolers, described cooler adopts three cooling tube sides of gas side of reciprocating and turning-back, and the waste gas in heat exchanger tube is contacted fully with cooling water, improved rate of heat exchange, the appearance and size of cooler significantly reduces.
The purpose of this utility model is achieved in that a kind of three tube side coolers, comprise: air inlet, described air inlet is connected with diffuser, described diffuser is connected with heat exchange tube assemblies, described heat exchange tube assemblies is connected with collector, described collector is connected with the gas outlet, described heat exchange tube assemblies comprises the shell of tubular, described shell two ends are provided with the tube sheet of sealing both ends of the surface, be provided with heat-exchanging tube bundle between the tube sheet of described two ends, described two ends tube sheet is provided with the through hole that is connected with heat exchanger tube; Described shell is provided with water inlet and delivery port, is respectively equipped with in described diffuser and collector inner chamber is divided into two-part pass partition.
The beneficial effect that the utility model produces is: the utility model is divided into three groups by the mode that pass partition is set with heat-exchanging tube bundle in diffuser and collector, high-temp waste gas is turned back twice at the mobile of cooler, be equivalent to increase by two tube sides, extended heat transfer process, do not increasing appearance and size, even dwindle under the prerequisite of appearance and size, improved heat exchange efficiency.The utility model can obtain larger heat transfer effect under less profile space, reduce the discharge of automobile exhaust fumes temperature, greatly improves the discharge performance index of automobile engine, satisfies higher environment protection emission requirement.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the profile schematic diagram of embodiment one described heat exchanger of the present utility model;
Fig. 2 is the diffuser inner-cavity structure schematic diagram of embodiment one described heat exchanger of the present utility model;
Fig. 3 is the collector inner-cavity structure schematic diagram of embodiment one described heat exchanger of the present utility model;
Fig. 4 is high-temp waste gas flow schematic diagram in the described heat exchanger of embodiment one of the present utility model;
Fig. 5 is a kind of distribution schematic diagram of heat-exchanging tube bundle on the tube sheet of embodiment one described heat exchanger of the present utility model;
Fig. 6 is the heat-exchanging tube bundle distribution schematic diagram on the tube sheet of embodiment three described heat exchangers of the present utility model;
Fig. 7 is the described continuous helical groove heat exchange tube of embodiment four of the present utility model schematic diagram;
Fig. 8 is the described interrupted helical groove heat exchange tube schematic diagram of embodiment four of the present utility model;
Fig. 9 is the described interrupted pit heat exchange tube schematic diagram of embodiment four of the present utility model.
The specific embodiment
Embodiment one:
The present embodiment is a kind of three tube side coolers, as shown in Figure 1, 2, 3.The present embodiment comprises: air inlet 6, described air inlet is connected with diffuser 1, described diffuser is connected with heat exchange tube assemblies 2, described heat exchange tube assemblies is connected with collector 3, described collector is connected with gas outlet 7, and described heat exchange tube assemblies comprises the shell of tubular, and described shell two ends are provided with the tube sheet of sealing both ends of the surface, be provided with heat-exchanging tube bundle between the tube sheet of described two ends, described two ends tube sheet is provided with the through hole that is connected with heat exchanger tube; Described shell is provided with water inlet 4 and delivery port 5, is respectively equipped with in described diffuser and collector inner chamber is divided into two- part pass partition 11,31.
The present embodiment is provided with respectively a pass partition in diffuser and collector.The inner chamber of diffuser and collector is divided into two parts by two pass partitions respectively, each pass partition makes the gas flow direction that enters cooler change once, high-temp waste gas flows out cooler after changing through twice direction, that is to say that this cooler gas side pipe journey is three journeys, gas flow as shown by the arrows in Figure 4, the flow path of gas are under same length in the one way cooler three times of gas flow paths.This design makes the temperature that enters the cooler high-temp waste gas be reduced fully, after cooled EGR gas enters engine participation burning, can effectively suppress or reduce the discharge capacity of oxynitrides, thus the requirement that satisfy regulatory improves constantly the motor vehicle emission limit value.
The present embodiment is mainly for following situation: the peripheral space of air inlet and give vent to anger position and cooler for recycled exhaust gas is limited in less scope, and inlet end and outlet side are when two ends, generally can select through type cooler scheme, satisfy the heat exchange requirement by the appropriate design heat exchanger tube.But due in limited space, the length of heat-exchanging tube bundle is shorter, through type design can't be satisfied Ou Si or even higher emission request at all, because heat-exchanging tube bundle length is when 130mm is following, cooling fluid is reduced to 150 ℃ of left and right with high-temp waste gas by 600 ℃ of left and right and is difficult to realize.Can not satisfy at the one way cooler under the early stage of performance requirement, must consider to adopt reasonable manner to improve heat exchange efficiency, under the prerequisite that heat exchange area can not effectively increase, extend the flow path of gas, improve the flow velocity of gas, increase the turbulent extent of gas, especially increase the disturbance to the near wall region boundary layer, can destroy or the boundary layer of attenuate fluid, thereby strengthen heat exchange, certainly, adopting three tube side cooler schemes will be best mode.Gas need to be through three tube sides to outlet from the entrance of cooler, and this just need to reasonably arrange pass partition in the diffuser at two ends and collector, when making gas enter another tube side from a tube side, move more smooth, and the minimizing local pressure loss.(according to the order of gas flow: gas flows to the first tube side to gas at first from the first tube side, then be the second tube side, the 3rd tube side at last) the outflow rear enter the second tube side to change, it is U-shaped that gas flow paths is, gas flows out the rear from the second tube side and enters the 3rd tube side to change, it is U-shaped that gas flow paths also is, the approximate Z-type of the total path of three interior gas flow of tube side; After the gas that enters an end air inlet diffuser changes through twice direction in the cooler tube side, flow out from the collector of giving vent to anger of the other end.Because flow path extends, when gas flow through at each tube side, temperature was effectively reduced, and gas temperature is reduced to 150 degree from 600 ℃ becomes possibility.By adopting three tube side designs, bring into play to greatest extent the effect of cooler, can satisfy the double requirements that heat exchanger heat exchanging efficient and bulk are set in little space.
The described pass partition of the present embodiment be shaped as the V font, the heat exchanger tube in heat exchange tube assemblies can be divided into three groups by 120 degree.What Fig. 5 showed is the situation of the distribution of heat-exchanging tube bundle on tube sheet, can find out significantly that heat-exchanging tube bundle is divided into three groups according to 120 degree.Pass partition is according to each regularity of distribution design, so be in the shape of the letter V.Pass partition in diffuser is with inlet chamber 12 and second chamber 13 of turning back, and wherein inlet chamber is connected with air inlet, makes the high-temp waste gas that enters enter the first tube side.Second turns back the chamber with the second tube side and the 3rd tube side UNICOM, but separates with inlet chamber.As a same reason, the pass partition in collector is with outlet chamber 33 and first chamber 32 of turning back, and wherein outlet chamber is connected with the gas outlet, makes the gas through heat exchange flow out cooler.First turns back the chamber with the first tube side and the second tube side UNICOM, but separates with outlet chamber.
In the described cooler of the present embodiment, according to actual conditions, about the layout of heat exchanger tube, following several situation can be arranged; The first, the caliber of the heat exchanger tube of each tube side is identical, and the quantity of heat exchanger tube is also identical, such as, the quantity of each tube side heat exchanger tube is 6,7 or 13.The second, the caliber of the heat exchanger tube of each tube side can be not quite similar, and because caliber is different, the quantity of heat exchanger tube is also different.The 3rd, the heat exchange tube diameter of each tube side is identical, and the quantity of heat exchanger tube reduces gradually, and namely the gas communication gross area reduces gradually.Maximum in the first tube side heat exchanger tube quantity, the 3rd tube side heat exchanger tube minimum number, the quantity of the second tube side heat exchanger tube are less than or equal to the first tube side heat exchanger tube quantity, more than or equal to the 3rd tube side heat exchanger tube quantity.Different layout type is all in order to satisfy in the confined space the demand of high heat exchange efficiency, to consider simultaneously the generation that reduces incrustation in cooler.
The described heat exchanger tube of the present embodiment can adopt the heat exchanger tube of circular cross-section, can be continuous helical groove heat exchange tube commonly used at present, can effectively improve heat transfer effect.Can be also interrupted helical groove heat exchange tube, in the performance heat transfer effect, because mobile obstacle is discontinuous, the pressure loss is reduced accordingly.Perhaps heat exchanger tube can be to be the pit pipe that helix distributes, and by to the dimple size appropriate design, not only can satisfy performance requirement, the pressure loss can be reduced simultaneously.Heat exchanger tube can also be that the cross section is flat-shaped heat exchanger tube, can in the situation that circulation area is identical, further improve heat exchange efficiency.
Embodiment two:
The present embodiment is the improvement of embodiment one, is that embodiment one is about the refinement of heat exchanger tube.Pass partition in the described diffuser of the present embodiment and collector is divided into three groups of tube banks with heat-exchanging tube bundle, and heat exchanger tube quantity and heat exchanger tube shape in described three groups of tube banks are all identical with diameter.
Embodiment three:
The present embodiment is the improvement of embodiment one, is that embodiment one is about the refinement of heat exchanger tube.Pass partition in the described diffuser of the present embodiment and collector is divided into three groups of tube banks with heat-exchanging tube bundle, and described three groups of tube banks reduce gradually according to the heat exchanger tube quantity in the order tube bank of gas flow.
Shown in Figure 6 is the distribution schematic diagram of restraining on tube sheet, the sectional view that is equivalent to restrain.By the distribution that can be clearly seen that three groups of pipe heat pipes in figure, and three groups the tube bank in heat exchanger tube quantity reduce gradually.First group of tube bank is 15 heat exchanger tubes, and second group of tube bank is 11 heat exchanger tubes, and the 3rd group is 9 heat exchanger tubes.
Embodiment four:
The present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of heat exchanger tube.The described heat exchanger tube of the present embodiment is a kind of in the continuous helical groove heat exchange tube of circular cross-section, interrupted helical groove heat exchange tube, interrupted pit heat exchange tube.Shown in Figure 7 is the continuous helical groove heat exchange tube.Shown in Figure 8 is interrupted helical groove heat exchange tube.Shown in Figure 9 is interrupted pit heat exchange tube.
Embodiment five:
The present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of heat exchanger tube.The described heat exchanger tube of the present embodiment is the square-section heat exchanger tube.
It should be noted that at last, below only unrestricted in order to the technical solution of the utility model to be described, although with reference to the preferred arrangement scheme, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model (such as the shape of the shape of the shape of dividing plate, shell, heat exchanger tube, heat exchanger tube arrangement mode in shell etc.), and not break away from the spirit and scope of technical solutions of the utility model.
Claims (5)
1. tube side cooler, comprise: air inlet, described air inlet is connected with diffuser, described diffuser is connected with heat exchange tube assemblies, and described heat exchange tube assemblies is connected with collector, and described collector is connected with the gas outlet, described heat exchange tube assemblies comprises the shell of tubular, described shell two ends are provided with the tube sheet of sealing both ends of the surface, are provided with heat-exchanging tube bundle between the tube sheet of described two ends, and described two ends tube sheet is provided with the through hole that is connected with heat exchanger tube; Described shell is provided with water inlet and delivery port, it is characterized in that, is respectively equipped with in described diffuser and collector inner chamber is divided into two-part pass partition.
2. cooler according to claim 1, is characterized in that, the pass partition in described diffuser and collector is divided into three groups of tube banks with heat-exchanging tube bundle, and heat exchanger tube quantity and heat exchanger tube shape in described three groups of tube banks are all identical with diameter.
3. cooler according to claim 1, is characterized in that, the pass partition in described diffuser and collector is divided into three groups of tube banks with heat-exchanging tube bundle, and described three groups of tube banks reduce gradually according to the heat exchanger tube quantity in the order tube bank of gas flow.
4. one of according to claim 1-3 described coolers, is characterized in that, described heat exchanger tube is a kind of in the continuous helical groove heat exchange tube of circular cross-section, interrupted helical groove heat exchange tube, interrupted pit heat exchange tube.
5. one of according to claim 1-3 described coolers, is characterized in that, described heat exchanger tube is the square-section heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392745 CN202719903U (en) | 2012-08-09 | 2012-08-09 | Cooler with three tube passes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392745 CN202719903U (en) | 2012-08-09 | 2012-08-09 | Cooler with three tube passes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719903U true CN202719903U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392745 Expired - Lifetime CN202719903U (en) | 2012-08-09 | 2012-08-09 | Cooler with three tube passes |
Country Status (1)
| Country | Link |
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| CN (1) | CN202719903U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230098A (en) * | 2013-04-17 | 2013-08-07 | 绍兴县发圣五金制品有限公司 | Cooling device for hookah |
| CN104197750A (en) * | 2014-09-23 | 2014-12-10 | 大连葆光节能空调设备厂 | Wedge-shaped tubular heat exchanger |
| FR3063523A1 (en) * | 2017-03-06 | 2018-09-07 | Manitou Bf | MOTOR POWERTRAIN WITH INTERNAL COMBUSTION ENGINE |
| CN112357036A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Ship outboard conformal cooler and ship cooling system |
-
2012
- 2012-08-09 CN CN 201220392745 patent/CN202719903U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230098A (en) * | 2013-04-17 | 2013-08-07 | 绍兴县发圣五金制品有限公司 | Cooling device for hookah |
| CN103230098B (en) * | 2013-04-17 | 2015-08-05 | 黄徐辉 | Cooling device on a kind of water pipe |
| CN104197750A (en) * | 2014-09-23 | 2014-12-10 | 大连葆光节能空调设备厂 | Wedge-shaped tubular heat exchanger |
| CN104197750B (en) * | 2014-09-23 | 2017-11-21 | 大连葆光节能空调设备厂 | Wedge-shaped pipe heat exchanger |
| FR3063523A1 (en) * | 2017-03-06 | 2018-09-07 | Manitou Bf | MOTOR POWERTRAIN WITH INTERNAL COMBUSTION ENGINE |
| CN112357036A (en) * | 2020-10-28 | 2021-02-12 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Ship outboard conformal cooler and ship cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100124 Chen Jialin, 9 hospital, eight Li Zhuang village, Gaobeidian Township, Chaoyang District, Beijing, 7 floor 705, 706 rooms, building 1, Patentee after: BEIJING MEILIANQIAO TECHNOLOGY GROUP Co.,Ltd. Address before: 100022 room 2503, block A, North office building, Jian Wai SOHO, 39 East Third Ring Road, Chaoyang District, Beijing. Patentee before: BEIJING U BRIDGE LLC |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |