CN208012439U - The heat energy exchange device of the water heater energy can be saved - Google Patents

Abstract

The utility model is related to a kind of heat energy exchange devices for saving the water heater energy, including a upper cover, a heat exchanger plate module, a heat-exchange tube module and a pedestal, the upper cover top surface is equipped with a water inlet, a water outlet is equipped at the bottom surface of pedestal, the heat exchanger plate module is arranged in the lower section of upper cover water inlet, and be connected with heat-exchange tube module and be connected into a closed connection water route, it is another to act the inside put into pedestal；The hot water for shower flowed into via upper cover water inlet, heat exchanger plate module is touched first, keeps it internal first by the preheated normal-temperature water of heat-exchange tube module, then after obtaining the heat exchange of maximum temperature thermal energy, it is guided to the water inlet of water heater immediately, and then reaches the usage amount for substantially saving the water heater energy.

Description

The heat energy exchange device of the water heater energy can be saved

Technical field

The utility model is about a kind of heat energy exchange device that can substantially save the shower heater energy, by a heat Power board module is combined construction with a heat-exchange tube module so that the waste heat recovery rate of hot water for shower reaches 60%, in turn The energy usage amount needed for water heater heating is saved, and synchronizes the environmental protection and economy benefit reached and reduce energy consumption carbon emission amount.

Background technology

In order to reach the purpose of carbon reduction, at present there are many household shower with heat exchanger list marketing, set Meter principle is by tap water guide's inflow heat exchanger of room temperature, and using the hot water after shower as the heat of heat exchanger Source, the tap water of higher temperature can be preheated to by flowing through the tap water at normal temperature in the heat exchanger, then is guided to hot water The temperature of water feeding of heater so can be improved in the water inlet pipe of device, and then saves the energy needed for water heater heating, and this case is invented People endeavours to research and develop heat energy exchange device used for hot water for shower more than 10 years, and its developmental achievement is proposed that Chinese patent application is on record Have：Authorization Notice No. CN100552361 (January 17 2006 applying date), the publication number CN101511242 (applyings date 2007 On September 11), Authorization Notice No. CN201364044 (on 2 25th, 2009 applying date), Authorization Notice No. CN201364045 (March 4 2009 applying date), Authorization Notice No. CN102478367 (November 24 2010 applying date) and application publication number CN105403075 (2014 applyings date September 11 days) etc., it is pre- that aforementioned all kinds of patents is attained by its after inventor is embodied Its function, only only drawback is that its reaction still has the space promoted again, study carefully it in the energy usage amount for saving water heater It is related that reason is in that each heat energy exchange device above-mentioned can not improve the 〝 waste heat recovery rates 〞 of hot water after shower, in other words, If the 〝 waste heat recovery rate 〞 of hot water after shower can be improved, the inflow temperature of water heater can be improved, when the inflow temperature of water heater It being enhanced, then it, which is heated to the quantity of energy (i.e. gas dosage or power usage) needed for desired leaving water temperature, to be reduced, into And can reach water heater use the energy energy-saving effect, therefore, how successful modification heat energy exchange device, so that it is further increased The 〝 waste heat recovery rate 〞 of hot water for shower, just seem of crucial importance.

In addition, when transformation increases the heat energy exchange device design structure of 〝 waste heat recovery rates 〞, it is also necessary to take into account its system The cost made cannot increase therewith, although otherwise 〝 waste heat recovery rates 〞 is improved, but the manufacturing cost of heat energy apparatus increases, It is unfavorable for sales promotion instead to consumer, while after also can not reaching every household use, reduction energy consumption to be brought up The environmental protection and economy result of carbon emission amount.

Utility model content

The main purpose of the utility model is providing a kind of heat energy exchange device for saving the water heater energy comprising： One upper cover is a tabular body, has a top surface, a bottom surface and a side face, by the side donut between the top surface and bottom surface It encloses and links into an integrated entity, wherein top surface setting tool enters through bottom surface equipped with one at downward concave face, and in the lowest position of concave face The mouth of a river is separately convexly equipped with several positioning columns in the edge of bottom surface；One pedestal is area groove body identical with upper cover, has one Top surface, a bottom surface and a side face, the top surface setting tool is at open recess, and the bottom surface setting tool is at sealing surface, and in top surface and bottom surface Between linked into an integrated entity by the edge surface corral, wherein the edge of the top surface is concaved with several location holes, and the positioning The quantity in hole and position, it is corresponding with position with the positioning column quantity of upper cover, after each positioning column insertion of upper cover bottom surface, It is mutually overlapped integral, it is separately worn in edge surface there are two pilot hole, and one is equipped with again in the edge surface of close bottom surface Discharge outlet；One heat exchanger plate module, the hollow flat shape body made of metal material, be placed into the open recess of pedestal and Position has a top surface, a bottom surface and a side face, by the edge surface between the top surface and bottom surface in the lower section of upper cover water inlet Corral links into an integrated entity, and a closed accommodation chamber is formed between top surface, bottom surface and edge surface, wherein the top surface is close Be equipped with a blasthole and an apopore at edge surface position, and be connected with accommodation chamber, the apopore again with an outlet pipe phase Connection；One heat-exchange tube module is repeatedly bent circle discoid body made of by a strip stainless steel tube, is placed into opening in pedestal In port recess, the axial section of the stainless steel tube is in wavy, and wherein an end nozzle is its for being placed through chassis side face In on a pilot hole, another end nozzle is then connected to the blasthole of heat exchanger plate module top surface so that itself and heat exchange template die The accommodation chamber and outlet pipe of group form a closed connection water route；And several fixed frames, each fixed frame are consolidated by a strip Fixed board and several geometrical clamps composition, wherein fixed intervals several strip holes arranged in parallel are equipped in the strip fixed plate, it should After geometrical clamp is bent by a strip elastic sheet metal doubling, the V-arrangement clamping part of the first half and the annulus grip part of lower half are formed, And it is convexly equipped with a thickness again respectively in two distal edges of the V-arrangement clamping part and is respectively less than the convex sheet of strip hole with width.

It is impregnated by the hot water for shower in pedestal split shed groove with heat-exchange tube module by heat exchanger plate module, makes institute Have and sequentially flow through the normal-temperature water in stainless steel tube and can gradually be heated up by the first time heat exchange action of hot water for shower, and because not The axial surface of rust steel pipe is in wavy, in addition to it can accelerate the speed of heat exchange, when what is gradually heated up by first time heat exchange After normal-temperature water enters the accommodation chamber of heat exchanger plate module, and because the top surface of heat exchanger plate module is placed exactly under the water inlet of upper cover Side, and the temperature of the hot water for shower flowed by the water inlet is in the state of the highest temperature so that it is located at the heat exchanger plate module The heat exchange action of maximum temperature thermal energy again can be obtained by normal-temperature water preheated for the first time in middle accommodation chamber, And after increasing temperature again into last preheating warm water, then flowed into the water inlet pipe of water heater by outlet pipe, therefore improve heat The inflow temperature of hydrophone, at the same also reach reduce water heater be heated to needed for its wanted leaving water temperature quantity of energy (i.e. gas use Amount or power usage are reduced), and relatively also just reach the effect of water heater is saved using quantity of energy.In other words, this practicality is new Type, by hot water for shower, after the heat exchange action heating that first time immersion type is carried out to normal-temperature water, then is passed through by heat-exchange tube module Secondary maximum temperature thermal energy is carried out by power board module to be in direct contact under heat exchange action so that the 〝 waste heats of hot water for shower Rate of recovery 〞 can be substantially improved to 60%.

The another object of the utility model is to provide a kind of heat energy exchange device for saving the water heater energy, due to this hair Bright middle heat-exchange tube module is to use commercially available stainless steel corrugated pipes, and heat exchanger plate module may be selected to use two panels metallic plate mutual Overlapped to be welded, or die-casting process forms in a manner of molding, processing and manufacturing mode belongs to traditional handicraft, therefore entire amount The manufacturing cost of the more aforementioned known preceding case of the cost of production is lower.

A further object of the utility model is to provide a kind of heat energy exchange device for saving the water heater energy, a combination thereof step It is rapid as follows：First, the fixed plate for gripping two symmetrical fixed frames of one of which respectively with the finger of both hands, can be easily Ground lifts entire heat exchanger plate module and heat-exchange tube module, then, by the outlet pipe end nozzle of heat exchanger plate module and heat Pipe die group end nozzle is exchanged, respectively two pilot holes in inserted base in edge surface and after being pierced by, you can synchronizing makes hot friendship It changes template die group to be embedded in the open recess of base top surface together with heat-exchange tube module, finally, each positioning of upper cover bottom surface Column, after being respectively aligned on base top surface corresponding each location hole, then being inserted into can make upper cover mutually overlapped at one with pedestal Body, and complete the assembling of the utility model；If through use a period of time and need open clean when, as long as according to abovementioned steps Reversal procedure, you can heat exchanger plate module and heat-exchange tube module are taken out to the outside of pedestal, so that it may to carry out clean work, Therefore operation is upper relatively easy can reach.

Description of the drawings

Fig. 1 is the stereogram exploded view of the utility model.

Fig. 2 is the stereogram exploded view of heat-exchange tube module and fixed frame in the utility model.

Fig. 3 is the sectional view of 3-3 lines in Fig. 2.

Fig. 4 is the stereogram exploded view of heat exchanger plate module and its outlet pipe in the utility model.

Fig. 5 is the sectional view of 5-5 lines in Fig. 4.

Fig. 6 is the sectional view of 6-6 lines in Fig. 1.

Fig. 7 is the combination stereogram of fixed frame and stainless steel tube in the utility model.

Fig. 7-1 is one of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 7-2 is two of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 7-3 is three of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 7-4 is four of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 7-5 is five of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 7-6 is six of the assembly combination diagrammatic cross-section of fixed frame and stainless steel tube in the utility model.

Fig. 8 is that heat exchanger plate module in the utility model, heat-exchange tube module and fixed frame put solid in pedestal Schematic diagram.

Fig. 9 is the three-dimensional combination figure of the utility model.

Figure 10 is the stereoscopic schematic diagram that the utility model is used cooperatively with water heater.

Figure 11 is the sectional view of 11-11 lines in Fig. 9.

Figure 12 is the sectional view of 12-12 lines in Figure 10.

Figure 13 is the sectional view of 13-13 lines in Figure 10.

Figure 14 is another embodiment stereogram of the utility model in the base.

Figure 15 is the another embodiment stereogram of the utility model in the base.

Figure 16 is the another embodiment that heat exchanger plate module is placed in pedestal together with heat-exchange tube module in the utility model Base schematic diagram.

Specific implementation mode

As shown in Figures 1 to 7, it is the embodiment for the heat energy exchange device that the utility model can save the water heater energy, Including：

One upper cover 10 is a tabular body, has a top surface 11, a bottom surface 12 and a side face 13, the top surface 11 and bottom Linked into an integrated entity by 13 corral of edge surface between face 12, wherein 11 setting tool of top surface at downward concave face, and concave face most It is equipped with a water inlet 14 through bottom surface 12 at lower position, is separately convexly equipped with several positioning columns 15 in the edge of bottom surface 12；

One pedestal 20 is area groove body identical with upper cover 10, has a top surface 21, a bottom surface 22 and a side face 23,21 setting tool of top surface is at open recess 24, and 22 setting tool of bottom surface is at sealing surface, and by the side between top surface 21 and bottom surface 22 23 corral of side face links into an integrated entity, wherein the edge of the top surface 21 is concaved with several location holes 25, and the location hole 25 Quantity and position, it is corresponding with position with 15 quantity of the positioning column of upper cover 10, for 10 bottom surface of upper cover each positioning column insert It is mutually overlapped integral after entering, separately wear that there are two pilot holes 26 in edge surface 23, and the edge surface 23 close to bottom surface 22 On be equipped with a discharge outlet 27 again；

One heat exchanger plate module 30, the hollow flat shape body made of metal material, the opening being placed into pedestal 20 are recessed In slot 24 and position has a top surface 31, a bottom surface 32 and a side face 33, the top surface 31 in the lower section of 10 water inlet 14 of upper cover It is linked into an integrated entity by 33 corral of edge surface between bottom surface 32, and is formed between top surface 31, bottom surface 32 and edge surface 33 One closed accommodation chamber 34 (as shown in Figure 5), wherein the top surface 31 be equipped at 33 position of edge surface a blasthole 35 and One apopore 36, and be connected with accommodation chamber 34, which is connected (as shown in Figure 6) with an outlet pipe 37 again；

One heat-exchange tube module 40 is placed by more than 41 bending circle discoid body made of of a strip stainless steel tube In the open recess 24 of pedestal 20, the axial section of the stainless steel tube 41 is in wavy (as shown in Figure 3), and a wherein tip tube Mouth 42 is placed through on a wherein pilot hole 26 for 20 edge surface 23 of pedestal, and another end nozzle 43 is then connected to heat exchange template die The blasthole 35 of 30 top surfaces 31 of group so that the accommodation chamber 34 and outlet pipe 37 of itself and heat exchanger plate module 30 form a closed company Water flowing road (as shown in FIG. 6 and 7)；And

Several fixed frames 50, each fixed frame 50 are made of a strip fixed plate 51 and several geometrical clamps 52, wherein Fixed intervals several strip holes 53 arranged in parallel are equipped in the strip fixed plate 51, and (amplification of top-left position regards in such as Fig. 2 Shown in figure), after which is bent by a strip elastic sheet metal doubling, form the V-arrangement clamping part 54 and lower half of the first half The annulus grip part 55 (as shown in the enlarged view of bottom-right location in Fig. 2) in portion, and divide in two distal edges of the V-arrangement clamping part 54 It is not convexly equipped with a thickness not again and is respectively less than the convex sheet 56 of strip hole 53 with width.

As shown in Fig. 7, Fig. 7-1 to Fig. 7-6, using fixed frame 50 by the fixation side of stainless steel tube in heat-exchange tube module 40 Formula is the V-arrangement clamping part 54 of geometrical clamp 52 in each fixed frame 50 to be first directed to the outer diameter of stainless steel tube 41, and mutually support patch and apply After power (as shown in Fig. 7-1 and Fig. 7-2), its annulus grip part 55 can be made to grip the cladding of stainless steel tube 41 (such as Fig. 7-3 institutes Show), it then, can be together after so that two convex sheet 56 of V-arrangement clamping part 54 is drawn close with two finger forces (as shown in Fig. 7-4) It is pierced by outside the strip hole 53 of strip fixed plate 51, then two bendings outward of convex sheet 56 after being pierced by (as shown in Fig. 7-5), you can Make to be arranged in each stainless steel tube 41 on same position, is fitly suspended and is fixed in strip fixed plate 51 (such as Fig. 7 and Fig. 7- Shown in 6).

Again as shown in Figure 7 to 9, the combination step of the utility model is as follows：First, it is gripped respectively with the finger of both hands The strip fixed plate 51 (as shown in the imaginary line finger in Fig. 7) of two symmetrical fixed frames 50 of one of which, can be easily Ground lifts entire heat exchanger plate module 30 and heat-exchange tube module 40, then, by 37 end of outlet pipe of heat exchanger plate module 30 Nozzle and 40 end nozzle 42 of heat-exchange tube module two pilot holes 26 in inserted base 20 in edge surface 23 and are pierced by respectively Afterwards, you can synchronize the open recess 24 for making heat exchanger plate module 30 be embedded in 20 top surface 21 of pedestal together with heat-exchange tube module 40 Interior (as shown in Figure 8), finally, each positioning column 15 of 10 bottom surface of upper cover, it is corresponding each fixed to be respectively aligned on 20 top surface 21 of pedestal Behind the hole 25 of position, then being inserted into can make upper cover 10 mutually overlapped integral (as shown in Figure 9) with pedestal 20, and complete the present invention Assembling, if through use a period of time and need open clean when, as long as according to the reversal procedure of abovementioned steps, you can by heat hand over Change template die group 30, heat-exchange tube module 40 takes out the outside of pedestal 20, so that it may relatively easy in operation to carry out clean work It can reach.

For another example shown in Fig. 9 to Figure 13, being the installation for the heat energy exchange device that the utility model can save the water heater energy makes With mode, it is first placed in bathroom floor 1, then running water pipe P and heat-exchange tube module 40 are worn and are exposed to 20 edge surface of pedestal 23 end nozzle 42 is connected, and finally, the water inlet pipe P1 of water heater 2 and wearing is exposed to the outlet pipe 37 of 20 edge surface 23 of pedestal After end port is connected, that is, complete installation (as shown in Figure 10 and Figure 11)；When the stations shower person B in the top surface of upper cover 10 11 and start When shower, the normal-temperature water W1 of running water pipe P can enter stainless steel tube 41 by a wherein end nozzle 42 for heat-exchange tube module 40 Interior, and with after full of entire stainless steel tube 41, normal-temperature water W1 can be via another end nozzle 43 and from heat exchanger plate module 30 blasthole 35 flows into accommodation chamber 34, after being full of entire accommodation chamber 34, and can be flowed out from its apopore 36 (such as Figure 11 institutes Show), then flow into the water inlet pipe P1 of water heater 2 and hot water for shower W is heated by water heater 2 via outlet pipe 37, shower heat Water W is then sprayed out (as shown in FIG. 9 and 10) via the outlet pipe P2 of water heater 2 and from gondola water faucet S, and hot water for shower W warps It after crossing shower person's B body uses, i.e., can trickle down on the top surface of upper cover 10 11, then pedestal 20 is flowed by the water inlet 14 of top surface 11 Open recess 24 in, i.e., can be by the row of edge surface 23 in pedestal 20 and after hot water for shower W is full of in entire open recess 24 The mouth of a river 27 is discharged on bathroom floor 1 (as indicated in figure 11 by arrows).

In aforementioned process, since heat exchanger plate module 30 and heat-exchange tube module 40 are by 20 split shed groove 24 of pedestal Hot water for shower W impregnate (as shown in figure 12), therefore all normal-temperature water W1 sequentially flowed through in stainless steel tube 41 are subject to leaching It bathes the first time heat exchange action of hot water W and gradually heats up, since the axial surface of stainless steel tube 41 is in wavy, therefore can accelerate The speed (as shown in figure 13) of heat exchange, and the normal-temperature water W1 sequentially gradually to be heated up by first time heat exchange is entering heat friendship After changing the accommodation chamber 34 of template die group 30, and because the top surface of heat exchanger plate module 30 31 is placed exactly under the water inlet 14 of upper cover 10 Side, and the temperature of the hot water for shower W just flowed by the water inlet 14 is in the state of the highest temperature so that it is located at heat exchange template die By normal-temperature water W1 preheated for the first time in accommodation chamber 34 in group 30, the heat that can obtain maximum temperature thermal energy again is handed over The effect of changing, and after increasing temperature again into last preheating warm water W2, then by the water inlet pipe P1 of the inflow water heater 2 of outlet pipe 37 It is interior, thus the inflow temperature of water heater 2 is improved, while also reaching reduction water heater 2 and being heated to needed for its wanted leaving water temperature Quantity of energy (i.e. gas dosage or power usage reduce), and relatively also just reach water heater and save work(using quantity of energy Effect.In other words, the present invention makes hot water for shower W by heat-exchange tube module 40, and first is carried out to flowing through its internal normal-temperature water W1 After the heat exchange action heating of secondary immersion type, then carries out secondary maximum temperature thermal energy via heat exchanger plate module 30 and directly connect It touches under heat exchange action so that the 〝 waste heat recovery rates 〞 of hot water for shower W can be substantially improved to 60%.

The present inventor and oneself company (Foshan City delta electric appliance Science and Technology Ltd.) employee Liang Chuanjia, at 2017 11 The moon 1 carried out the 〞 tests of 〝 waste heat recovery rates to the present invention, and result is for example below【Table one】Afterheat energy-saving rate test report,【Table Two】90 data test results of acquisition,【Table three】The consumption power line chart of water heater and【Table four】Waste heat recovery rate it is energy saving Shown in rate curve graph, wherein be the heat exchange using commercially available diameter 11mm stainless steels wave Regulation Cost utility model in table one Pipe die group, and combine the heat exchanger plate module of 0.072 square metre of area, carries out that totally 90 gathered datas were surveyed per minor tick 10 seconds Test result (as shown in Table 2), and obtain the consumption power line chart (as shown in Table 3) of its water heater, and obtain its waste heat The fractional energy savings curve graph (as shown in Table 4) of the rate of recovery.

【Table one】Afterheat energy-saving rate test report

【Table two】Acquire 90 data test results

【Table three】The consumption power line chart of water heater

【Table four】The fractional energy savings curve graph of waste heat recovery rate

By the test result of the serial number 80 (at i.e. the 13rd point and 20 seconds) in the table two it is found that its fractional energy savings can reach 60.05%, this also turns out the present invention one the result is that the target that all known hot water for shower thermal energy converters can not be reached The effect of the heating energy source usage amount of water heater is substantially saved really function.

It is another as shown in figure 14, it is another embodiment of pedestal 20 in the present invention, wherein close to discharge outlet in the pedestal 20 In 27 24 groove bottom of open recess, it is more convexly equipped with one of baffle 28, having makes hot water for shower W that can stop in open recess 24 Longer a period of time is stayed by the function outside its discharge outlet 27 discharge pedestal 20, can so to make by the shower after heat exchange action again The residual temperature of hot water W is then exhausted from after being fully utilized.

It is the another embodiment of the utility model in the base 20 as shown in Figure 15 and Figure 16, is the opening in pedestal 20 In 24 groove bottom of groove, it is alternatively arranged the deflector 29 (as shown in figure 15) for being convexly equipped with and surrounding, in heat-exchange tube module 40 The stainless steel tube 41 of coiling is placed in (as shown in figure 16), and to entering the hot water for shower W in open recess 24, having water conservancy diversion and prolonging Stagnant effect, and make hot water for shower W by the residuals temperatures after heat exchange action, rechargeable point of ground is then exhausted from pedestal after being utilized Function outside 20.

Claims (4)

1. a kind of heat energy exchange device for saving the water heater energy, it is characterised in that：Including,

One upper cover is a tabular body, has a top surface, a bottom surface and a side face, by the side between the top surface and bottom surface Donut, which encloses, to link into an integrated entity, wherein top surface setting tool is equipped at downward concave face, and in the lowest position of concave face through bottom surface One water inlet is separately convexly equipped with several positioning columns in the edge of bottom surface；

One pedestal is area groove body identical with upper cover, with a top surface, a bottom surface and a side face, the top surface setting tool at Open recess, the bottom surface setting tool are linked into an integrated entity between top surface and bottom surface by the edge surface corral at sealing surface, wherein The edge of the top surface is concaved with several location holes, and the quantity of the location hole and position, with the positioning column number of upper cover Amount is corresponding with position, mutually overlapped integral after each positioning column insertion of upper cover bottom surface, is separately equipped in edge surface Two pilot holes, and it is equipped with a discharge outlet again in the edge surface of bottom surface；

One heat exchanger plate module, the hollow flat shape body made of metal material are placed into the open recess of pedestal and position In the lower section of upper cover water inlet, there is a top surface, a bottom surface and a side face, by the edge surface corral between the top surface and bottom surface It links into an integrated entity, and is formed with a closed accommodation chamber between top surface, bottom surface and edge surface, wherein proximal edges are leaned in the top surface It is equipped with a blasthole and an apopore at the position of face, and is connected with accommodation chamber, which is connected with an outlet pipe again； And

One heat-exchange tube module is repeatedly bent circle discoid body made of by a strip stainless steel tube, is placed into opening in pedestal In port recess, the axial section of the stainless steel tube is in wavy, and wherein an end nozzle is its for being placed through chassis side face In on a pilot hole, another end nozzle is then connected to the blasthole of heat exchanger plate module top surface so that itself and heat exchange template die The accommodation chamber and outlet pipe of group form a closed connection water route.

2. a kind of heat energy exchange device for saving the water heater energy as described in claim 1, it is characterised in that：Further include number A fixed frame, each fixed frame are made of a strip fixed plate and several geometrical clamps, wherein are worn in the strip fixed plate After thering are several strip holes that fixed intervals are arranged in parallel, the geometrical clamp to be bent by a strip elastic sheet metal doubling, upper half is formed The V-arrangement clamping part in portion and the annulus grip part of lower half, and it is convexly equipped with a thickness again respectively in two distal edges of the V-arrangement clamping part The convex sheet of strip hole is respectively less than with width.

3. a kind of heat energy exchange device for saving the water heater energy as described in claim 1, it is characterised in that：In the pedestal In the open recess groove bottom of discharge outlet, it is more convexly equipped with one of baffle.

4. a kind of heat energy exchange device for saving the water heater energy as described in claim 1, it is characterised in that：The pedestal In open recess groove bottom, it is alternatively arranged and is convexly equipped with a deflector surrounded.