CN105546806A - PTC parallel flow heater - Google Patents
PTC parallel flow heater Download PDFInfo
- Publication number
- CN105546806A CN105546806A CN201610103622.6A CN201610103622A CN105546806A CN 105546806 A CN105546806 A CN 105546806A CN 201610103622 A CN201610103622 A CN 201610103622A CN 105546806 A CN105546806 A CN 105546806A
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- Prior art keywords
- heat exchange
- tube
- ptc
- communicated
- heater
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
- F24H9/1827—Positive temperature coefficient [PTC] resistor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/04—Positive or negative temperature coefficients, e.g. PTC, NTC
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention discloses a PTC parallel flow heater which comprises a distribution tube, a collector tube, n hybrid tubes and (n+1) heat exchange tube sets. One end of the distribution tube is communicated with a liquid inlet. One end of the collector tube is communicated with a liquid outlet. Each hybrid tube is provided with a first opening and a second opening. Each heat exchange tube set comprises a plurality of flat heat exchange tubes arranged at intervals in parallel. A set of PTC heating component is arranged between any two adjacent flat heat exchange tubes. When n is equal to 1, one end of one heat exchange tube set is communicated with the other end of the distribution tube, one end of the other heat exchange tube set is communicated with the other end of the collector tube, and the other ends of the two heat exchange tubes are communicated with the hybrid tubes. When n is larger than 1, one end of the first heat exchange tube set and one end of the second heat exchange tube set are communicated with the other end of the distribution tube and the other end of the collector tube, the other end of the first heat exchange tube set and the other end of the second heat exchange tube set are communicated with the first opening or the second opening of one hybrid tube, and the two ends of the other heat exchange tube sets are communicated with two hybrid tubes. The PTC parallel flow heater is higher in heating efficiency, and the temperature of the water outlet is more stable.
Description
Technical field
The present invention relates to ptc heater technical field.More particularly, the present invention relates to a kind of PTC concurrent flow heater.
Background technology
After PTC thermistor energising, self-heating is warmed up to resistance and enters transition district, and its surface temperature will keep steady state value, and this temperature is only relevant with applied voltage with the Curie temperature of PTC thermistor, and substantially irrelevant with environment temperature.Common ptc heater is exactly the heater element utilizing heated at constant temperature PTC thermistor constant temp. warming characteristics design, but because PTC element directly can not be used for heating liquid, therefore PTC liquid heater adopts wall-type heat exchange mostly, namely PTC heating element heater carries out heat exchange by duct wall, and the heat transfer effect of this mode depends on the thermal conductivity factor of material itself, heat-conducting area and currency.
The common structure of current PTC liquid heater is heater body (heating chamber) and PTC component cavity composition, the fine like this problem solving electricity separation heating, and heating chamber employs various structures form, can not fit more greatly very well with PTC element gap in its surface, have impact on heat exchange; Because aluminium thermal conductivity ratio copper own is little, in order to increase heat-conducting area and currency, structure is made into more multiple-pass mode, such flow velocity is fast, the heat time is short, need larger power, but the long-time high-temperature heating of metal aluminium is oxidizable, cause heat exchange efficiency to decline, add energy consumption.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of PTC concurrent flow heater, by arranging PTC heating element heater composition heater body between two flat heat exchange tube, realize electricity separation heating, realized mixing and the shunting of water to be heated by multiple mixing tube, make water through mixed flow thus the stability of raising heater outlet temperature.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of PTC concurrent flow heater, comprising:
Separating tube, its one end is communicated with inlet;
Collector tube, its one end is communicated with liquid outlet;
N mixing tube, for arbitrary mixing tube, it has the first opening and the second opening, n be more than or equal to 1 natural number;
N+1 set of heat exchange tubes, for arbitrary set of heat exchange tubes, it comprises parallel and spaced multiple flat heat exchange tube, the through hole extended along its length is provided with in described flat heat exchange tube, one group of PTC heating element heater is provided with, wherein, as n=1 between any 2 adjacent flat heat exchange tube, one end of two set of heat exchange tubes is communicated with the other end of collector tube with separating tube respectively, and the other end is all communicated with mixing tube; As n>1, one end of first set of heat exchange tubes is communicated with the other end of separating tube, one end of second set of heat exchange tubes is communicated with the other end of collector tube, the other end of the first set of heat exchange tubes and the first open communication of one of them mixing tube, the other end of the second set of heat exchange tubes and the second open communication of one of them mixing tube, the two ends of all the other set of heat exchange tubes are communicated with two mixing tubes respectively;
Described separating tube, collector tube, mixing tube and flat heat exchange tube are red copper material.
Preferably, described PTC concurrent flow heater, described multiple flat heat exchange tube is arranged at equal intervals.
Preferably, described PTC concurrent flow heater, is provided with the through hole that 4 of arranging along its width are flat in described multiple flat heat exchange tube.
Preferably, described PTC concurrent flow heater, n+1 set of heat exchange tubes be arranged in parallel between two.
Preferably, described PTC concurrent flow heater, one group of PTC heating element heater comprises 2 PTC heating element heaters, and the lead-in wire of 2 PTC heating element heaters is inwardly oppositely arranged.
Preferably, described PTC concurrent flow heater, n mixing tube is 3 mixing tubes.
Preferably, described PTC concurrent flow heater, for arbitrary set of heat exchange tubes, it comprises 3-5 flat heat exchange tube.
The present invention at least comprises following beneficial effect:
Heater structure of the present invention is simple, is easy to realize suitability for industrialized production;
Heater of the present invention pipeline used all adopts copper, not oxidizable, durable;
Heater of the present invention is by the heating of concurrent flow multiloop overcurrent, heat exchange efficiency is high, only need arrange and often organize the quantity of flat heat exchange tube or the quantity of mixing tube in set of heat exchange tubes and namely can realize demand for heat, equipment processing is simple, and easily can meet the heater of different heating power;
Heater of the present invention employs fluid in mixing tube flat heat exchange tube through mixed flow process, makes the temperature of liquid outlet more stable, avoids high temperature to scald or low temperature is suffered from cold, for consumer provides convenience.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Structural representation when Fig. 1 is PTC concurrent flow heater n=1 of the present invention;
Fig. 2 is the structural representation of flat heat exchange tube of the present invention;
Structural representation when Fig. 3 is PTC concurrent flow heater n=3 of the present invention;
Fig. 4 is the structural representation of PTC heating element heater;
Fig. 5 is embodiment one heater body physical dimension schematic diagram used;
Fig. 6 is A-A sectional dimension schematic diagram in Fig. 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
It should be noted that experimental technique described in following embodiment if no special instructions, is conventional method, described reagent and material, if no special instructions, all can obtain from commercial channels; In describing the invention, term " transverse direction ", " longitudinal direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, be not indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
As shown in figures 1 to 6, the invention provides a kind of PTC concurrent flow heater, comprising:
Separating tube 1, its one end is communicated with inlet;
Collector tube 2, its one end is communicated with liquid outlet;
N mixing tube 3, for arbitrary mixing tube, it has the first opening and the second opening, n be more than or equal to 1 natural number;
N+1 set of heat exchange tubes, for arbitrary set of heat exchange tubes, it comprises parallel and spaced multiple flat heat exchange tube 4, the through hole extended along its length is provided with in described flat heat exchange tube 4, a flat heat exchange tube inner via hole quantity can be 1, 2, 3 or multiple, in flat heat exchange tube as shown in Figure 2, number of openings is 4, one group of PTC heating element heater 5 is provided with between any 2 adjacent flat heat exchange tube, wherein, as n=1, one end of two set of heat exchange tubes is communicated with the other end of separating tube 1 with collector tube 2 respectively, the other end is all communicated with mixing tube 3, as shown in Figure 1, as n>1, one end of first set of heat exchange tubes is communicated with the other end of separating tube 1, one end of second set of heat exchange tubes is communicated with the other end of collector tube 2, the other end of the first set of heat exchange tubes and the first open communication of one of them mixing tube 3, the other end of the second set of heat exchange tubes and the second open communication of one of them mixing tube 3, the two ends of all the other set of heat exchange tubes are communicated with two mixing tubes respectively, and the quantity of mixing tube is as shown in Figure 33, i.e. n=3, here the first opening and the second opening are relative to mixing tube, correspond respectively to the entrance and exit of fluid turnover mixing tube, and any one first opening or the second opening are all communicated with multiple flat heat exchange tube the same side in a set of heat exchange tubes, mean that the first opening can be have and multiple flat heat exchange tube quantity water holes one to one.
Described separating tube 1, collector tube 2, mixing tube 3 and flat heat exchange tube 4 are red copper material.
In another kind of technical scheme, described PTC concurrent flow heater, described multiple flat heat exchange tube 4 is arranged at equal intervals, spacing between any two flat heat exchange tube can be advisable with the thickness clamping a PTC heating element heater, fully can carry out heat exchange like this, reduce heat loss, improve the heater efficiency of heating surface.
In another kind of technical scheme, described PTC concurrent flow heater, is provided with the through hole that 4 of arranging along its width are flat in described multiple flat heat exchange tube 4.Flat heat exchange tube inner via hole quantity number relevant to its efficiency of heating surface, also relevant to its size, because the size of flat heat exchange tube is relevant to the size of PTC heating element heater, contribute to improving the efficiency of heating surface of heater so rationally arrange number of openings.
In another kind of technical scheme, described PTC concurrent flow heater, n+1 set of heat exchange tubes be arranged in parallel between two, to make heat exchanger tube in heater in a plane, makes heater structure compacter, is easy to realize system insulation.
In another kind of technical scheme, described PTC concurrent flow heater, one group of PTC heating element heater comprises 2 PTC heating element heaters 5, and the lead-in wire of 2 PTC heating element heaters 5 is inwardly oppositely arranged, like this, make the lead-in wire of multiple PTC heating element heater assemble setting between two parties, the pin interfaces 6 that formation is connected with external power source as shown in Figure 1, makes heater power source circuit arrange advantages of simple.
In another kind of technical scheme, described PTC concurrent flow heater, n mixing tube is 3 mixing tubes 3, as shown in Figure 3.
In another kind of technical scheme, described PTC concurrent flow heater, for arbitrary set of heat exchange tubes, it comprises 3-5 flat heat exchange tube 4.
PTC liquid heater adopts concurrent flow pipe heat exchanging chamber and PTC element jointly to form heater body, realizes electricity separation heating.The flat heat exchange tube arranged in arrays that heat exchanging chamber adopts many to be arranged in parallel, wall thickness 0.5mm; Between the flat heat exchange tube that adjacent array is arranged, define PTC component cavity, flat heat exchange tube and PTC element can use screw rod to be fixed and clamped, and the lead-in wire of PTC element is arranged in the mid portion of heater body; Import and export and be connected with collection separating tube with drainage tube, form fluid access way; When needs power is larger, the quantity that can increase concurrent flow heat exchanger tube and PTC device forms composite heater main body; Heater body compact conformation, is easy to realize system insulation.
PTC concurrent flow liquid heater, fluid flows through separating tube successively, with the heat exchange of PTC element in concurrent flow heat exchanger tube, mixes, again in concurrent flow heat exchanger tube, carries out heat exchange, flow out finally by collector tube in liquid mixing tube; Liquid fully contacts with inner-walls of duct, homogeneous heating, can make multiloop flow equalization, and resistance is easy to balance, can meet the requirement of different heating power, and is easy to realizing circuit control, convenient maintenance and replacement; Heater body compact conformation, is easy to realize industrial optimal design and production.
< embodiment one >
In order to the beneficial effect of PTC concurrent flow heater of the present invention is described, the present inventor adopts the method for test to obtain following related conclusions.
Experimental condition: the heater body adopting structure as shown in Figure 1, and adopt heater body physical dimension as shown in Figure 5, wherein flat heat exchange tube size and arranged in arrays dimension reference Fig. 6 thereof, Fig. 6 is the A-A sectional dimension figure of Fig. 5, in Fig. 5 and Fig. 6, the unit of each size is millimeter, flat heat exchange tube and PTC element use screw rod to be fixed and clamped, and the turnover mouth of pipe is standard 4 points of interfaces; PTC component size 100mm × 21mm × 5mm, totally 14, single voltage 220V, power 160W; 220V small-sized circulating water pump, pump head 8m, maximum stream flow 60L/min.
Contrast test part: a kind of common PTC liquid heater (being made up of snakelike heat exchange tube and PTC heating element heater), the turnover mouth of pipe is standard 4 points of interfaces, PTC component size 100mm × 21mm × 5mm, totally 14, single voltage 220V, power 160W.
Test method: use 10 post steel radiating fin 3, connect water pump and heater successively again, topped up with water in overlap joint test macro, and at pump entrance end and heater outlet end setting pressure sensor and temperature sensor respectively, when setting pump entrance end temperature reaches 50 DEG C, system is out of service, and heater section does not all implement corresponding Insulation.
Show according to real-time pressure and temperature test data, shown in patent of the present invention, the pressure of heater reduces to 1030Pa, and the pressure of contrast test part reduces to 750Pa; Heater outlet temperature comparison shown in patent of the present invention is higher than testing heater outlet temperature 2.5 DEG C; The 280s of heater work shown in patent of the present invention shuts down, and contrast test part work 465s shuts down.
< embodiment two >
In floor low-temp radiation heating system and radiator heating system, heating reservoir is the hot water of 55 DEG C/45 DEG C, the wall-hung boiler that main employing is the energy with natural gas, liquefied petroleum gas, town gas and electricity etc., the PTC concurrent flow liquid heater of patent of the present invention, heat exchange efficiency is high, can replace in the low-temp radiation heating system of floor, take electricity as the wall-hung boiler (taking electric heating tube as major way) of energy resource consumption, certain energy-saving benefit can be realized.
< embodiment three >
For instant electric water heater, because of its power excessive (minimum power 4500W), in use can cause a lot of potential safety hazard, use PTC liquid heater of the present invention, really achieve electricity separation, power less (about about 2200W), resistance to water-flow is little, heat exchange efficiency is high, is desirable Instant heating type liquid heater.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. a PTC concurrent flow heater, is characterized in that, comprising:
Separating tube, its one end is communicated with inlet;
Collector tube, its one end is communicated with liquid outlet;
N mixing tube, for arbitrary mixing tube, it has the first opening and the second opening, n be more than or equal to 1 natural number;
N+1 set of heat exchange tubes, for arbitrary set of heat exchange tubes, it comprises parallel and spaced multiple flat heat exchange tube, the through hole extended along its length is provided with in described flat heat exchange tube, one group of PTC heating element heater is provided with, wherein, as n=1 between any 2 adjacent flat heat exchange tube, one end of two set of heat exchange tubes is communicated with the other end of collector tube with separating tube respectively, and the other end is all communicated with mixing tube; As n>1, one end of first set of heat exchange tubes is communicated with the other end of separating tube, one end of second set of heat exchange tubes is communicated with the other end of collector tube, the other end of the first set of heat exchange tubes and the first open communication of one of them mixing tube, the other end of the second set of heat exchange tubes and the second open communication of one of them mixing tube, the two ends of all the other set of heat exchange tubes are communicated with two mixing tubes respectively;
Described separating tube, collector tube, mixing tube and flat heat exchange tube are red copper material.
2. PTC concurrent flow heater as claimed in claim 1, it is characterized in that, described multiple flat heat exchange tube is arranged at equal intervals.
3. PTC concurrent flow heater as claimed in claim 1, is characterized in that, is provided with the through hole that 4 of arranging along its width are flat in described multiple flat heat exchange tube.
4. PTC concurrent flow heater as claimed in claim 1, it is characterized in that, n+1 set of heat exchange tubes be arranged in parallel between two.
5. PTC concurrent flow heater as claimed in claim 1, it is characterized in that, one group of PTC heating element heater comprises 2 PTC heating element heaters, and the lead-in wire of 2 PTC heating element heaters is inwardly oppositely arranged.
6. PTC concurrent flow heater as claimed in claim 1, it is characterized in that, n mixing tube is 3 mixing tubes.
7. PTC concurrent flow heater as claimed in claim 1, it is characterized in that, for arbitrary set of heat exchange tubes, it comprises 3-5 flat heat exchange tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103622.6A CN105546806A (en) | 2016-02-25 | 2016-02-25 | PTC parallel flow heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103622.6A CN105546806A (en) | 2016-02-25 | 2016-02-25 | PTC parallel flow heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546806A true CN105546806A (en) | 2016-05-04 |
Family
ID=55826186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610103622.6A Pending CN105546806A (en) | 2016-02-25 | 2016-02-25 | PTC parallel flow heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546806A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193970Y (en) * | 1994-06-03 | 1995-04-05 | 葛根宏 | Quick electric heating tubular heat exchanger |
| CN101975526A (en) * | 2010-11-18 | 2011-02-16 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchange tube and heat exchanger having the same |
| WO2011043563A2 (en) * | 2009-10-07 | 2011-04-14 | 주식회사 경동나비엔 | Heat exchanger |
| CN202814187U (en) * | 2012-10-09 | 2013-03-20 | 河南省银凯铝业有限公司 | Concurrent flow flat tube |
| CN203586522U (en) * | 2013-12-05 | 2014-05-07 | 明达实业(厦门)有限公司 | PTC heating assembly |
| CN203629399U (en) * | 2013-11-28 | 2014-06-04 | 河南启德隆实业有限公司 | Micro-channel parallel flow aluminum pipe for automobile air conditioner |
| CN204100538U (en) * | 2014-08-04 | 2015-01-14 | 广东美的集团芜湖制冷设备有限公司 | Heat-exchanging component and air conditioner |
| CN205593158U (en) * | 2016-02-25 | 2016-09-21 | 武汉商学院 | PTC concurrent flow heater |
-
2016
- 2016-02-25 CN CN201610103622.6A patent/CN105546806A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193970Y (en) * | 1994-06-03 | 1995-04-05 | 葛根宏 | Quick electric heating tubular heat exchanger |
| WO2011043563A2 (en) * | 2009-10-07 | 2011-04-14 | 주식회사 경동나비엔 | Heat exchanger |
| CN101975526A (en) * | 2010-11-18 | 2011-02-16 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchange tube and heat exchanger having the same |
| CN202814187U (en) * | 2012-10-09 | 2013-03-20 | 河南省银凯铝业有限公司 | Concurrent flow flat tube |
| CN203629399U (en) * | 2013-11-28 | 2014-06-04 | 河南启德隆实业有限公司 | Micro-channel parallel flow aluminum pipe for automobile air conditioner |
| CN203586522U (en) * | 2013-12-05 | 2014-05-07 | 明达实业(厦门)有限公司 | PTC heating assembly |
| CN204100538U (en) * | 2014-08-04 | 2015-01-14 | 广东美的集团芜湖制冷设备有限公司 | Heat-exchanging component and air conditioner |
| CN205593158U (en) * | 2016-02-25 | 2016-09-21 | 武汉商学院 | PTC concurrent flow heater |
Non-Patent Citations (1)
| Title |
|---|
| 张新德: "《空气能/电能/燃气/太阳能热水器金牌维修实训》", 30 November 2013, 机械工业出版社 * |
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Application publication date: 20160504 |
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