CN108662765A

CN108662765A - Positive displacement heat-exchanger rig and water heater with it

Info

Publication number: CN108662765A
Application number: CN201710214831.2A
Authority: CN
Inventors: 代先锋; 仇正良; 梁国荣
Original assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2018-10-16
Anticipated expiration: 2037-04-01
Also published as: CN108662765B

Abstract

The invention discloses a kind of positive displacement heat-exchanger rig and with its water heater, positive displacement heat-exchanger rig includes：Burner casing defines the combustion chamber of open upper end in burner casing；Burner, burner are located in combustion chamber to generate flue gas；Liner, liner are located at the upper end of burner casing, and water storage cavity is defined in liner, and there are the multiple upper openings being in communication with the outside, the lower part of water storage cavity to have the under shed being connected to combustion chamber on the top of water storage cavity；Multiple heat exchange branch pipes, multiple heat exchange branch pipes are located in water storage cavity and the upper end of multiple heat exchange branch pipes is sealingly disposed in correspondingly in multiple upper openings；Lower heat exchanger tube, lower heat exchanger tube are sealedly connected under shed, and the upper end of lower heat exchanger tube and the lower end of multiple heat exchange branch pipes are tightly connected.The heat exchange efficiency of positive displacement heat-exchanger rig is promoted, and heat transfer effect is preferable.

Description

Positive displacement heat-exchanger rig and water heater with it

Technical field

The present invention relates to hot water technique fields, more particularly, to a kind of positive displacement heat-exchanger rig and with its hot water Device.

Background technology

Because of its constant water temperature, the advantages such as heat supply water is big, and use cost is low have volumetric gas water heater in commercial kitchen area Good development prospect.Volumetric gas water heater in the related technology heats water using flue gas, and heat exchange efficiency is low Under, and the temperature for heating water is not uniform enough.

Invention content

The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of appearance The heat exchange efficiency of product formula heat-exchanger rig, the positive displacement heat-exchanger rig is promoted, and heat transfer effect is preferable.

The invention also provides a kind of water heaters with above-mentioned positive displacement heat-exchanger rig.

Positive displacement heat-exchanger rig according to the ... of the embodiment of the present invention, including：Burner casing defines in the burner casing Hold open combustion chamber；Burner, the burner are located in the combustion chamber to generate flue gas；Liner, the liner are located at The upper end of the burner casing, defines water storage cavity in the liner, the top of the water storage cavity have be in communication with the outside it is more A upper opening, the lower part of the water storage cavity have the under shed being connected to the combustion chamber；Multiple heat exchange branch pipes, it is multiple described to change Hot leg pipe is located in the water storage cavity and the upper end of multiple heat exchange branch pipes be sealingly disposed in correspondingly it is multiple it is described on In opening；Lower heat exchanger tube, the lower heat exchanger tube are sealedly connected in the under shed, the upper end of the lower heat exchanger tube and multiple institutes The lower end for stating heat exchange branch pipe is tightly connected.

The heat exchange efficiency of positive displacement heat-exchanger rig according to the ... of the embodiment of the present invention is promoted, and heat transfer effect is preferable, is heated to water Evenly.

In addition, positive displacement heat-exchanger rig according to the above embodiment of the present invention can also have following additional technology special Sign：

According to some embodiments of the present invention, multiple heat exchange branch pipes include the circumferentially spaced distribution along the liner Multiple peripheral branch pipes.

Optionally, multiple heat exchange branch pipes further include the middle part branch pipe at the center for being generally located at the water storage cavity, multiple The periphery branch interval is arranged in the periphery of the middle part branch pipe.

Further, the middle part branch pipe, the upper heat exchanger tube and water storage cavity coaxial arrangement.

Optionally, the lower part of each peripheral branch pipe extends camber.

In some embodiments of the invention, the bottom wall of the liner is formed as the arc being recessed upwards, the under shed It is located at the middle part of the bottom wall of the liner.

According to some embodiments of the invention, positive displacement heat-exchanger rig further includes：Shell, the liner and the burner casing It is located in the shell, the top of the shell, which is equipped with, is connected to multiple heat exchange branch pipes and extraneous outer vent.

Optionally, the outer vent includes multiple, and multiple heat exchange branch pipes are corresponded with multiple outer vents, often A heat exchange branch pipe is stretched out out of corresponding the outer vent and is connect with the body seal.

Optionally, the lower heat exchanger tube and the liner are connected with the heat exchange branch pipe welding respectively.

Positive displacement heat-exchanger rig according to the ... of the embodiment of the present invention further includes：Temperature controller, the temperature controller stretch into the water storage The lower part of chamber and it is connected with the burner.

Water heater according to the ... of the embodiment of the present invention, including positive displacement heat-exchanger rig according to the ... of the embodiment of the present invention.

The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment Obviously and it is readily appreciated that, wherein：

Fig. 1 is the sectional view according to the positive displacement heat-exchanger rig of first embodiment of the invention；

Fig. 2 is the structural schematic diagram according to the positive displacement heat-exchanger rig of first embodiment of the invention；

Fig. 3 is the sectional view according to the positive displacement heat-exchanger rig of second embodiment of the invention；

Fig. 4 is the structural schematic diagram according to the positive displacement heat-exchanger rig of second embodiment of the invention；

Fig. 5 is the sectional view according to the positive displacement heat-exchanger rig of third embodiment of the invention；

Fig. 6 is the structural schematic diagram according to the positive displacement heat-exchanger rig of third embodiment of the invention；

Fig. 7 is the sectional view according to the positive displacement heat-exchanger rig of four embodiment of the invention；

Fig. 8 is the structural schematic diagram according to the positive displacement heat-exchanger rig of four embodiment of the invention；

Fig. 9 is the sectional view according to the positive displacement heat-exchanger rig of fifth embodiment of the invention；

Figure 10 is the structural schematic diagram according to the positive displacement heat-exchanger rig of fifth embodiment of the invention；

Figure 11 is that Figure 10 centre circles show enlarged structure schematic diagram at A；

Figure 12 is the sectional view according to the positive displacement heat-exchanger rig of sixth embodiment of the invention；

Figure 13 is the structural schematic diagram according to the positive displacement heat-exchanger rig of sixth embodiment of the invention；

Figure 14 is the sectional view according to the positive displacement heat-exchanger rig of seventh embodiment of the invention；

Figure 15 is the structural schematic diagram according to the positive displacement heat-exchanger rig of seventh embodiment of the invention；

Figure 16 is that Figure 14 centre circles show enlarged structure schematic diagram at B；

Figure 17 is that Figure 15 centre circles show enlarged structure schematic diagram at C；

Figure 18 is the sectional view according to the positive displacement heat-exchanger rig of eighth embodiment of the invention；

Figure 19 is the structural schematic diagram according to the positive displacement heat-exchanger rig of eighth embodiment of the invention；

Figure 20 is the sectional view according to the positive displacement heat-exchanger rig of ninth embodiment of the invention；

Figure 21 is the vertical view according to the positive displacement heat-exchanger rig of ninth embodiment of the invention；

Figure 22 is the heat exchange spoiler and main heat exchange pipe according to the positive displacement heat-exchanger rig of ninth embodiment of the invention Assembling schematic diagram；

Figure 23 is the flow of flue gas schematic diagram according to the positive displacement heat-exchanger rig of ninth embodiment of the invention；

Figure 24 is the structural schematic diagram of heat exchange spoiler according to the ... of the embodiment of the present invention；

Figure 25 is that Figure 24 centre circles show enlarged structure schematic diagram at D；

Figure 26 is the sectional view for the positive displacement heat-exchanger rig for being equipped with heat exchange spoiler according to the ... of the embodiment of the present invention；

Figure 27 is the vertical view for the positive displacement heat-exchanger rig for being equipped with heat exchange spoiler according to the ... of the embodiment of the present invention.

Reference numeral：

Positive displacement heat-exchanger rig 100；

Liner 10；

Water storage cavity 101；Flange 102；Heat exchanger channels 103；Air passage 104；Upper opening 105；Under shed 106；

Burner casing 20；Blow vent 201；Combustion chamber 202；Burner 30；

Exchange heat branch pipe 41；Peripheral branch pipe 411；Middle part branch pipe 412；

Upper heat exchanger tube 42；Lower heat exchanger tube 43；

Main heat exchange pipe 44；Intermediate pipeline section 441, upper pipeline section 442；Lower tube section 443；

Peripheral venting channels 401；Middle part venting channels 402；

Shell 50；Outer vent 501；Inner housing 51；Outer housing 52；Installing port 521；

Exchange heat spoiler 60；Spoiler main body 61；Heat exchange fin 62；Flow-disturbing hole 601；

Main flow-disturbing section 611；Flanging 6111；Lightening hole 6112；

Construction section 612；Mounting portion 6121；

Drainage element 70；Water-accepting part 701；Drainage 702；Discharge outlet 703；

Water receiving ring 71；Drain support arm 72；

Separator 80；Temperature controller 110；Water inlet pipe 120；Outlet pipe 130.

Specific implementation mode

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention, ability The those of ordinary skill in domain can carry out a variety of changes to these embodiments without departing from the principle and spirit of the present invention Change, change, replacing and modification, the scope of the present invention are limited by claim and its equivalent.

In the description of the present invention, it is to be understood that, term "center", " length ", " width ", "upper", "lower", The orientation of the instructions such as "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore It is not considered as limiting the invention.

Below with reference to the accompanying drawings positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention is described.

Shown in Figure 27, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include：Liner 10, combustion Burner shell 20, burner 30 and heat exchange smoke pipe.

Specifically, can define water storage cavity 101 in liner 10, heat exchange smoke pipe may be provided in water storage cavity 101.Liner 10 Top be equipped with upper opening 105, upper opening 105 is in communication with the outside, and the upper end for the smoke pipe that exchanges heat can be sealingly disposed in opening 105 It is interior.Thus, it is possible to realize that heat exchange smoke pipe is in communication with the outside, while liner 10 is tightly connected with heat exchange smoke pipe, can be effectively prevent Leak.

The combustion chamber 202 of open upper end is defined in burner casing 20, burner 30 is located in combustion chamber 202.Liner 10 It is located at the upper end of burner casing 20, to close the upper end opening of combustion chamber 202.The lower part of liner 10 be equipped under shed 106, under open Mouth 106 is connected to water storage cavities 101 and combustion chamber 202, the lower end for the smoke pipe that exchanges heat are sealingly disposed under shed 106, to realize burning Chamber 202 and the connection of heat exchange smoke pipe and the partition of combustion chamber 202 and water storage cavity 101.

The flue gas that burner 30 generates as a result, can enter in heat exchange smoke pipe, and exchange heat with heat exchange smoke pipe, make to change The temperature of hot smoke pipe increases, and heat exchange occurs with the water in water storage cavity 101, to realize the heating to water.Flue gas is by heat exchange Temperature reduces afterwards, and can be flowed out from the upper end of heat exchange smoke pipe extraneous.

In the present invention, heat exchange smoke pipe may include exchange heat branch pipe 41, upper heat exchanger tube 42, lower heat exchanger tube 43 and main heat exchange pipe 44 At least one of, exchange capability of heat can be improved by being designed by the structure of heat exchanging smoke pipe, specific with reference to some Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention is described in detail in embodiment.

Figures 1 and 2 show that according to the positive displacement heat-exchanger rig 100 of first embodiment of the invention.Such as Fig. 1 and Fig. 2 institutes Show, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention includes liner 10, burner casing 20, burner 30 and heat exchange cigarette Pipe, heat exchange smoke pipe may include exchange heat branch pipe 41 and upper heat exchanger tube 42.

Specifically, defining the combustion chamber 202 of open upper end in burner casing 20, burner 30 is located at combustion chamber 202 It is interior.Liner 10 is located at the upper end of burner casing 20, to close the upper end opening of combustion chamber 202.Water storage cavity is defined in liner 10 101, the top of water storage cavity 101 has upper opening 105,105 connection water storage cavity 101 of upper opening and the external world, the lower part of water storage cavity 101 With under shed 106, under shed 106 is connected to water storage cavity 101 and combustion chamber 202.

Upper heat exchanger tube 42 is sealably coupled in upper opening 105.Under shed 106 and heat exchange branch pipe 41 respectively include it is multiple, Multiple heat exchange branch pipes 41 and multiple under sheds 106 correspond.In the description of the present invention, unless otherwise indicated, " multiple " Two or more are meant that, for example, three or four etc..Multiple heat exchange branch pipes 41 are located in water storage cavity 101, each to exchange heat The lower end of branch pipe 41 is sealingly disposed in respectively in corresponding under shed 106, the upper end of each branch pipe 41 that exchanges heat and upper heat exchanger tube 42 Lower end be connected.

The flue gas that the fuel gas such as 30 combustion gas of burner are formed as a result, initially enters in multiple heat exchange branch pipes 41, so It converges to again afterwards in the upper heat exchanger tube 42 being connected to multiple heat exchange branch pipes 41, positive displacement heat-exchanger rig is discharged after upper heat exchanger tube 42 100.The setting of multiple heat exchange branch pipes 41 can make the water of different parts in liner 10 realize that the direct heat with heat exchange branch pipe 41 is handed over It changes, the water of liner 10 can be made more uniformly to exchange heat, at the same time, multiple heat exchange branch pipes 41 make heat exchange area be increased, To increase the exchange capability of heat of positive displacement heat-exchanger rig 100, heat exchange efficiency and heat transfer effect are promoted.

For upper heat exchanger tube 42 and the connection type of heat exchange branch pipe 41 and the connection type of exchange heat branch pipe 41 and liner 10 Do not do it is specifically limited, for example, may be used bonding way or clamping encryption seal mode etc..Some in the present invention are specific In example, upper heat exchanger tube 42 and heat exchange branch pipe 41 are weldingly connected, and heat exchange branch pipe 41 is also weldingly connected with liner 10.As a result, not only Facilitate connection, and connects reliable, good airproof performance.In other embodiments of the present invention, upper heat exchanger tube 42 and heat exchange branch pipe 41 is integrally formed.Thus, it is possible to improve the overall tightness of heat exchange smoke pipe, while the dress of positive displacement heat-exchanger rig 100 can be promoted With efficiency.

To further increase the uniformity of heat exchange, multiple heat exchange branch pipes 41, which can be evenly spaced apart, is distributed in water storage cavity In 101.For example, as depicted in figs. 1 and 2, multiple heat exchange branch pipes 41 may include multiple peripheral branch pipes 411, multiple periphery branch pipes 411 Along the circumferentially spaced distribution of liner 10.Thus, it is possible to the uniformity that heat exchange branch pipe 41 is distributed in liner 10 is improved, Ke Yijin One step improves exchange capability of heat.In certain specific embodiments of the invention, multiple periphery branch pipes 411 are along the circumferential equal of liner 10 Even ground arranged for interval.

As depicted in figs. 1 and 2, heat exchange branch pipe 41 may be extended to straight tube, and flow of flue gas is smooth, and heat-exchange performance is good.Optionally, often The top of a periphery branch pipe 411 may be extended to arc, as depicted in figs. 1 and 2.Flue gas flows more in heat exchange branch pipe 41 as a result, It is smooth.As depicted in figs. 1 and 2, the internal face of the junction of upper heat exchanger tube 42 and heat exchange branch pipe 41 can be with rounding off.As a result, The smoothness of flow of flue gas can further be promoted.

Shown in Fig. 1 and Fig. 2, multiple heat exchange branch pipes 41 may also include middle part branch pipe 412, and middle part branch pipe 412 is big Body is located at the middle part of water storage cavity 101, and peripheral branch pipe 411 is arranged at intervals on the periphery of middle part branch pipe 412.That is, multiple outer It encloses branch pipe 411 and is disposed around the periphery of middle part branch pipe 412, and be spaced apart setting with middle part branch pipe 412, multiple periphery branch pipes 411 It is separated from each other.Thus, it is possible to further increase heat exchange branch pipe 41 be distributed uniformity, further promoted heating water effect and Efficiency.

Further, middle part branch pipe 412, upper heat exchanger tube 42 and water storage cavity 101 can be coaxially disposed.That is, middle part branch The central axis of pipe 412, the central axis of upper heat exchanger tube 42 and the central axis of water storage cavity 101 are collinearly arranged.Thus, it is possible into One step promotes the efficiency and effect of heating water.

As depicted in figs. 1 and 2, it can be respectively equipped with flange 102 under shed 106 and upper opening 105, middle part branch pipe 412 Lower end and upper heat exchanger tube 42 are connected with corresponding flange 102 respectively, specifically, at the lower end of middle part branch pipe 412 and under shed 106 Flange 102 be connected, upper heat exchanger tube 42 with it is upper be open 105 at flange 102 be connected.Thus, it is possible to improve middle part branch pipe 412 with And the connection reliability and leakproofness of upper heat exchanger tube 42 and liner 10.

Optionally, the bottom wall of liner 10 is formed as the arc being recessed upwards, and as depicted in figs. 1 and 2, under shed 106 can It is located on the bottom wall of liner 10.The bottom wall of arc can play guiding function to flue gas as a result, and flue gas is made to be easier to enter and change In hot leg pipe 41, the heating effect to water is improved.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention can also include shell 50, as depicted in figs. 1 and 2, interior Courage 10 and burner casing 20 may be provided in shell 50, to be protected by shell 50, avoid damaging.The top of shell 50 can be equipped with outgoing Mouth 501, the upper heat exchanger tube 42 of the connection of outer vent 501 and the external world, allow the flue gas in heat exchanger tube 42 to flow out shell 50.Further Ground, upper heat exchanger tube 42 can be stretched out out of outer vent 501 and be tightly connected with shell 50.It is not only easy to connect as a result, upper heat exchange Pipe 42 is connect with shell 50 reliably and leakproofness is preferable, and outlet is good, can enter to avoid flue gas and be trapped in shell 50 It is interior.

Optionally, shell 50 can be seperated part with burner casing 20, and burner casing 20 can be connected with shell 50.When So, in some embodiments of the invention, burner casing 20 and shell 50 or integral piece, specifically, the one of shell 50 Part can be used as the use of burner casing 20, be not necessarily to that burner casing 20 is separately provided as a result, cost is lower.

As shown in Fig. 2, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may also include temperature controller 110, temperature controller 110 stretch into the lower part of water storage cavity 101, to detect the temperature in water storage cavity 101.When the water level in water storage cavity 101 reaches temperature controller When 110, temperature controller 110 can detect the temperature of water.Temperature controller 110 is connected with burner 30, when temperature controller 110 detects the temperature of water When degree is more than predetermined temperature, burner 30 can be controlled and be stopped, when the temperature that temperature controller 110 detects water is less than predetermined temperature When, burner 30 can work on, and to continue to provide flue gas into heat exchange smoke pipe, realize the heating to water, controlling is good, peace Full property is higher.

Fig. 3 and Fig. 4 shows the positive displacement heat-exchanger rig 100 according to second embodiment of the invention.Such as Fig. 3 and Fig. 4 institutes Show, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention includes liner 10, burner casing 20, burner 30 and heat exchange cigarette Pipe, heat exchange smoke pipe may include exchange heat branch pipe 41 and lower heat exchanger tube 43.

Structure in the present embodiment has points of resemblance with the structure in one embodiment, also has difference, for phase Same or similar component uses identical reference numeral, and for details, reference can be made to the descriptions of front, are not described in detail herein.It is right below Main difference is described in detail.

With reference to shown in Fig. 3 and Fig. 4, in the present embodiment, the upper opening 105 of liner 10 includes multiple, and heat exchange branch pipe 41 wraps It includes multiple and is arranged in water storage cavity 101, multiple heat exchange branch pipes are corresponded with multiple upper openings 105, and each exchange heat branch pipe 41 upper end is sealingly disposed in corresponding upper opening 105.Under shed 106 on liner 10 is one, and lower heat exchanger tube 43 seals It is connected under shed 106, the upper end of lower heat exchanger tube 43 is connect with the lower end of multiple heat exchange branch pipes 41.

The flue gas that the fuel gas such as 30 combustion gas of burner are formed as a result, initially enters in lower heat exchanger tube 43, then again It is diverted in multiple heat exchange branch pipes 41, positive displacement heat-exchanger rig 100 is discharged after multiple heat exchange branch pipes 41.Multiple heat exchange branch pipes 41 Setting the water of different parts can be made directly to carry out heat exchange with heat exchange branch pipe 41 in liner 10, the water of liner 10 can be made more It equably exchanges heat, at the same time, multiple heat exchange branch pipes 41 are so that heat exchange area is increased, to increase positive displacement heat-exchanger rig 100 exchange capability of heat, heat exchange efficiency and heat transfer effect are promoted.

Optionally, lower heat exchanger tube 43 may be used with heat exchange branch pipe 41 connection types such as is bonded or welded and is connected.Heat exchange branch Pipe 41 may be used the connection types such as bonding or welding with liner 10 and realize sealed connection.Optionally, it lower heat exchanger tube 43 and changes The internal face of the junction of hot leg pipe 41 can be with rounding off, to promote the smoothness of flow of flue gas.

Shown in Fig. 3 and Fig. 4, the structure and the structure substantially class in one embodiment of the heat exchange branch pipe 41 in the present embodiment Seemingly, multiple heat exchange branch pipes 41 may include that multiple peripheral branch pipes 411 and middle part branch pipe 412, the correlation for specifically referring to front are retouched It states.Flange 102 can be equipped under shed 106, lower heat exchanger tube 43 can be connected with flange 102.Further, middle part branch pipe 412, Upper heat exchanger tube 42 and liner 10 can be coaxially disposed, to further increase the performance of heating water.Optionally, each peripheral branch pipe 411 Lower part may be extended to arc, to improve the smoothness of flow of flue gas, and facilitate the peripheral heat exchanger tube of connection and lower heat exchanger tube 43.

As shown in Figure 3 and Figure 4, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may also include shell 50, shell 50 top can be equipped with multiple outer vents 501, and multiple heat exchange branch pipes 41 are corresponded with multiple outer vents 501, each heat exchange branch Pipe 41 can be stretched out out of corresponding outer vent 501 and is tightly connected with shell 50.It is not only easy to connect as a result, upper heat exchanger tube 42 to connect reliable and leakproofness with shell 50 preferable, and outlet is good, can enter to avoid flue gas and be trapped in shell 50.

Fig. 5 and Fig. 6 shows the positive displacement heat-exchanger rig 100 according to third embodiment of the invention.Such as Fig. 5 and Fig. 6 institutes Show, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include liner 10, burner casing 20, burner 30 and heat exchange Smoke pipe, heat exchange smoke pipe may include exchange heat branch pipe 41, upper heat exchanger tube 42 and lower heat exchanger tube 43.

Structure in the present embodiment has points of resemblance with the structure in one embodiment and second embodiment, There is difference, identical reference numeral is used for same or similar component, for details, reference can be made to the descriptions of front, herein not It is described in detail, main difference is described in detail again below.

As shown in Figure 5 and Figure 6, the structure of the present embodiment can regard the knot of one embodiment and second embodiment as It closes, heat exchange smoke pipe may include exchange heat branch pipe 41, upper heat exchanger tube 42 and lower heat exchanger tube 43.Heat exchange branch pipe 41 includes multiple and is all provided with It sets in the water storage cavity 101 of liner 10, upper heat exchanger tube 42 is connected to the upper end of heat exchange branch pipe 41, and lower heat exchanger tube 43 is connected to heat exchange The lower end of branch pipe 41.Specifically, the upper opening 105 on liner 10 and under shed 106 are respectively one, and the lower sealing of heat exchanger tube 43 connects It is connected under shed 106, the upper end of lower heat exchanger tube 43 is connect with the lower end of multiple heat exchange branch pipes 41, and upper heat exchanger tube 42 is tightly connected In upper opening 105, the lower end of upper heat exchanger tube 42 is connect with the upper end of multiple heat exchange branch pipes 41.

The flue gas that the fuel gas such as 30 combustion gas of burner are formed as a result, initially enters in lower heat exchanger tube 43, then again It is diverted in multiple heat exchange branch pipes 41, upper heat exchanger tube 42 is pooled to again after multiple heat exchange branch pipes 41, by 42 row of upper heat exchanger tube Go out positive displacement heat-exchanger rig 100.The setting of multiple heat exchange branch pipes 41 can make the water of different parts in liner 10 realize and exchange heat The direct heat exchange of branch pipe 41, can make the water of liner 10 more uniformly exchange heat, and at the same time, multiple heat exchange branch pipes 41 are so that change Hot area is increased, and to increase exchange capability of heat, heat exchange efficiency and heat transfer effect are promoted.

Optionally, the internal face of the junction of lower heat exchanger tube 43 and heat exchange branch pipe 41 can be with rounding off, upper heat exchanger tube 42 Junction with heat exchange branch pipe 41 can be with rounding off.Optionally, lower heat exchanger tube 43 with heat exchange branch pipe 41 may be used welding or The modes such as bonding realize sealeds connection, and welding or the sealing means such as bonding may be used in upper heat exchanger tube 42 and the branch pipe 41 that exchanges heat.

With it is aforementioned similar, in the present embodiment, multiple heat exchange branch pipes 41 may include multiple peripheral branch pipes 411 and middle part branch Pipe 412 specifically refers to the associated description of front.Optionally, middle part branch pipe 412, upper heat exchanger tube 42, lower heat exchanger tube 43 and water storage Chamber 101 is coaxially disposed, to further increase the performance of heating water.Optionally, each the upper and lower part of heat exchange branch pipe 41 can be divided Do not extend camber, to improve the smoothness of flow of flue gas, and facilitates the company of connection and upper heat exchanger tube 42 and lower heat exchanger tube 43 It connects.

As shown in Figure 5 and Figure 6, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may also include shell 50, shell 50 top is equipped with outer vent 501, the upper heat exchanger tube 42 of the connection of outer vent 501 with it is extraneous, make flue gas in heat exchanger tube 42 can be with Flow out shell 50.Further, upper heat exchanger tube 42 can be stretched out out of outer vent 501 and is tightly connected with shell 50.As a result, Not only easy to connect, upper heat exchanger tube 42 is connect with shell 50 reliably and leakproofness is preferable, and outlet is good, can be to avoid flue gas Into and be trapped in shell 50.

Fig. 7 and Fig. 8 shows the positive displacement heat-exchanger rig 100 according to four embodiment of the invention.Such as Fig. 7 and Fig. 8 institutes Show, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention includes liner 10, burner casing 20, burner 30 and heat exchange cigarette Pipe, heat exchange smoke pipe may include exchange heat branch pipe 41 and main heat exchange pipe 44.

Specifically, liner 10, burner casing 20, burner 30, temperature controller 110 and shell 50 etc. in the present embodiment It is substantially similar with the embodiment of front, it is not described in detail herein.The embodiment of 41 front of heat exchange branch pipe in the present embodiment has Difference, mainly exchanges hot leg pipe 41 below and main heat exchange pipe 44 is described in detail.

With reference to Fig. 7 and with shown in 8, main heat exchange pipe 44 is located in the water storage cavity 101 of liner 10, and the upper end of main heat exchange pipe 44 is close Envelope is arranged in the upper opening 105 of liner 10, and the lower end of main heat exchange pipe 44 is sealingly disposed in the under shed 106 of liner 10.It changes Hot leg pipe 41 is located in water storage cavity 101, and the lower end of heat exchange branch pipe 41 is connected to the lower part of main heat exchange pipe 44, and exchange heat the upper of branch pipe 41 End is connected to the top of main heat exchange pipe 44, and at least part of heat exchange branch pipe 41 is formed around the spiral shape of main heat exchange pipe 44.

Length of the heat exchange branch pipe 41 in liner 10 is longer as a result, can increase the contact surface of flue gas and the branch pipe 41 that exchanges heat The contact area of product and heat exchange branch pipe 41 and water, increases the exchange capability of heat of positive displacement heat-exchanger rig 100, heat the efficiency of water with Effect promoting.

As shown in Figure 7 and Figure 8, heat exchange branch pipe 41 is integrally formed as spiral shape.Heat exchange branch pipe 41 is in liner 10 as a result, It is more evenly distributed, the water in liner 10 can be made more uniformly to be heated, and the contact of exchange heat branch pipe 41 and water and flue gas Area bigger can further increase the heating effect and the efficiency of heating surface of water more fully by the heat transfer of flue gas to water.

Optionally, as shown in Figure 7 and Figure 8, main heat exchange pipe 44 may include intermediate pipeline section 441, upper pipeline section 442 and lower tube section 443.Intermediate pipeline section 441 is formed as straight tube, and optionally, intermediate pipeline section 441 can be vertically extended.Upper pipeline section 442 may be provided in the upper end of intermediate pipeline section 441 and be connected with the upper end of heat exchange branch pipe 41, and upper pipeline section 442 is sealingly disposed in out In mouth 105.Lower tube section 443 is located at the lower end of intermediate pipeline section 441 and is connected with the lower end of heat exchange branch pipe 41, and lower tube section 443 is close Envelope is arranged under shed 106.

Wherein, the flow area of lower tube section 443 is more than the flow area of intermediate pipeline section 441, the flow area of upper pipeline section 442 Also greater than the flow area of intermediate pipeline section 441.Thus, it is possible to flue gas is made to be more easy to flow into and out main heat exchange pipe 44, and conveniently The connection of heat exchange branch pipe 41 and main heat exchange pipe 44.

In certain specific embodiments of the invention, main heat exchange pipe 44 is integrated.That is, intermediate pipeline section 441, Upper pipeline section 442 and lower tube section 443 may be integrally formed.The overall tightness and intensity of main heat exchange pipe 44 can be not only improved as a result, And the efficiency of assembling of positive displacement heat-exchanger rig 100 can be promoted.

Optionally, main heat exchange pipe 44, water storage cavity 101 and heat exchange branch pipe 41 can be coaxially disposed.That is, main heat exchange pipe 44 Central axis, water storage cavity 101 central axis and exchange heat branch pipe 41 rotation axis be collinearly arranged.Thus, it is possible into one Step promotes the efficiency and effect of heating water.

As shown in Figure 7 and Figure 8, main heat exchange pipe 44 can be tightly connected with shell 50 and the upper end of main heat exchange pipe 44 can be from It is stretched out in the outer vent 501 of shell 50.Not only easy to connect as a result, main heat exchange pipe 44 connect reliable and leakproofness with shell 50 Preferably, and outlet is good, can enter to avoid flue gas and be trapped in shell 50.

For main heat exchange pipe 44 and the connection type of heat exchange branch pipe 41 and the connection type of main heat exchange pipe 44 and liner 10 Do not do it is specifically limited, for example, may be used bonding way or clamping encryption seal mode etc..Some in the present invention are specific In example, main heat exchange pipe 44 and heat exchange branch pipe 41 are weldingly connected, and main heat exchange pipe 44 is also weldingly connected with liner 10.As a result, not only Facilitate connection, and connects reliable, good airproof performance.In other embodiments of the present invention, main heat exchange pipe 44 and heat exchange branch pipe 41 is integrally formed.Thus, it is possible to improve the overall tightness of heat exchange smoke pipe, while the dress of positive displacement heat-exchanger rig 100 can be promoted With efficiency.

As shown in Figure 7 and Figure 8, flange 102 can be respectively equipped under shed 106 and upper opening 105, main heat exchange pipe 44 it is upper End and lower end can be connected respectively with corresponding flange 102, to improve connection effect.Optionally, main heat exchange pipe 44 and heat exchange branch The internal face of the junction of pipe 41 can rounding off, to improve the smoothness of flow of flue gas.

The foregoing describe some embodiments that positive displacement heat-exchanger rig 100 has heat exchange branch pipe 41, in these embodiments, Positive displacement heat-exchanger rig 100 further includes at least one of main heat exchange pipe 44 or upper heat exchanger tube 42 and lower heat exchanger tube 43.Certainly, In an embodiment of the present invention, positive displacement heat-exchanger rig 100 can also only include multiple heat exchange branch pipes 41, without including other knots The heat exchanger tube of structure, at this point, for convenience of connecting, the top of liner 10 can be equipped with multiple upper openings 105, with multiple heat exchange branch pipes 41 Upper end be connected, the lower part of liner 10 can be equipped with multiple under sheds 106, to be connected with the lower ends of multiple heat exchange branch pipes 41, heat exchange Ability is preferable.

Moreover, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention can also only include main heat exchange pipe 44, and Do not include heat exchange branch pipe 41, the positive displacement heat-exchanger rig 100 containing main heat exchange pipe 44 is carried out in detail with reference to specific embodiment Thin description.Although it should be noted that without containing heat exchange branch pipe 41, people in the art in the schematic diagram of some embodiments Member, can also be by Straight in some above-mentioned embodiments or spiral it is appreciated that in order to further increase heat transfer effect Heat exchange branch pipe 41 is combined in the embodiment being described below.

Fig. 9 to Figure 11 shows the positive displacement heat-exchanger rig 100 according to fifth embodiment of the invention.Such as Fig. 9 to Figure 11 Shown, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention includes liner 10, burner casing 20, burner 30 and heat exchange Smoke pipe, heat exchange smoke pipe may include main heat exchange pipe 44.

Specifically, the interior restriction open upper end of burner casing 20 has combustion chamber 202, burner 30 to be located at combustion chamber 202 It is interior.Liner 10 is located at the upper end of burner casing 20, to close the upper end opening of the combustion chamber 202.It can be defined in liner 10 Water storage cavity 101, the top of liner 10 is equipped with upper opening 105,105 connection water storage cavities 101 of upper opening and the external world.The lower part of liner 10 Equipped under shed 106, under shed 106 is connected to water storage cavity 101 and combustion chamber 202.

Main heat exchange pipe 44 may be provided in water storage cavity 101, and the upper end of main heat exchange pipe 44 is sealingly disposed in opening 105, main The lower end of heat exchanger tube 44 is sealingly disposed under shed 106.Combustion chamber 202 can be with the lower ending opening of main heat exchange pipe 44 as a result, Connection, and separate with water storage cavity 101, the upper end opening of main heat exchange pipe 44 can be in communication with the outside.

Burner 30 can be with fuel gas such as combustion gas, to generate flue gas as a result, and carrying the flue gas of heat can pass through Combustion chamber 202 enters in main heat exchange pipe 44, and in main heat exchange pipe 44 with main heat exchange pipe 44 heat exchange occurs for flue gas, can be by heat It is transferred to main heat exchange pipe 44, the heat received can be transferred to the water in water storage cavity 101 again by main heat exchange pipe 44, be realized to water Heating, temperature reduce flue gas can be flowed out from main heat exchange pipe 44, cocurrent is outwardly.

The inventors of the present application found that when flue gas and the lower main heat exchange pipe of temperature 44 contact, in main heat exchange pipe 44 Condensed water can be formed on internal face, especially started at low ambient temperatures or in positive displacement heat-exchanger rig 100 The initial stage this phenomenon of work is obvious.Condensed water can downwards flow under the effect of gravity along the inner wall of main heat exchange pipe 44 Dynamic, when burner 30 is in the lower section with the internal face institute face of main heat exchange pipe 44, condensed water can drop onto on burner 30, Combustion position is caused to be deteriorated.

In order to effectively solve the problems, such as this, as shown in Figures 9 to 11, the positive displacement heat-exchanger rig 100 in the present embodiment may be used also Including drainage element 70, drainage element 70 may be provided in water storage cavity 101 and can be connected with main heat exchange pipe 44.Drainage element 70 is equipped with Water-accepting part 701, water-accepting part 701 can be used for accepting the condensed water flowed down from the internal face of main heat exchange pipe 44, the row of drainage element 70 The mouth of a river 703 exceeds burner 30 outward.Here, it is appreciated that outward to the direction of separate combustion chamber 202 or backwards to combustion chamber 202 direction.

As a result, when the water that water-accepting part 701 is accepted is flowed out from discharge outlet 703, condensed water will not flow on burner 30, To effectively avoid influence of the condensed water to burner 30,30 combustion efficiency of burner is good, can achieve the purpose that stablize burning.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention can accept the inner wall of main heat exchange pipe 44 by setting The drainage element 70 of condensed water under surface current, and set the discharge outlet of drainage element 70 703 to exceed burner 30, Ke Yiyou outward Effect avoids condensed water downstream to burner 30, achievees the purpose that stablize burning, and burning is more abundant, and heat release is more, Ke Yiti Rise heating effect.

It should be noted that drainage element 70 is not limited only to be connected with main heat exchange pipe 44, can also be connected with liner 10, example Such as, when the lower end of main heat exchange pipe 44 is not stretched out out of under shed 106, drainage element 70 can be connected to all edges of under shed 106 On, at this point, water-accepting part 701 can also play the effect for accepting dirty condensed water.

In the embodiment shown in Fig. 9 to Figure 12, water-accepting part 701 can be formed as water receiving tank, and water receiving tank is formed as annular. The water flowed down from the internal perisporium of main heat exchange pipe 44 as a result, can be received by water receiving tank, may be implemented preferably to accept water Effect, while can arbitrarily be flowed everywhere to avoid the water of undertaking.Certainly, in the present invention, water-accepting part 701 is not limited in being formed Can also be other structures, for example, water-accepting part 701 may be formed as obliquely and be inclined outwardly connecing for extension for water receiving tank The structures such as water inclined-plane, this will be understood by for a person skilled in the art, herein no longer illustrated in greater detail.

Further, as shown in Figures 9 to 11, drainage 702, drainage 702 and water receiving can be also set on drainage element 70 Slot is connected to, and to accept the condensed water in water receiving tank, the outlet of drainage 702 is above-mentioned discharge outlet 703, and the water in water receiving tank can be with It is flowed from discharge outlet 703 by drainage 702, drainage effect is more preferable.Optionally, drainage 702 can be along the diameter of combustion chamber 202 To extending outwardly.

Further, drainage 702 may include multiple, and multiple drainage 702 can be along circumferentially spaced point of water receiving tank Cloth.Thus, it is possible to the water in water receiving tank is made faster to flow out, condensed water is avoided to accumulate excessive and overflow in water receiving tank, and from connecing The edge of sink is diffused out and is dropped onto on burner 30, can more effectively avoid influence of the condensed water to burner 30.

As shown in Fig. 9 to Figure 12, drainage element 70 may include water receiving ring 71 and draining support arm 72.Water receiving ring 71 and main heat exchange pipe 44 are connected.In some unshowned embodiments of the present invention, water receiving ring 71 can also be connected with liner 10.Water receiving tank can be set In water receiving ring 71, draining support arm 72 can downwardly and outwardly tilt extension, and drainage 702 can be defined by draining in support arm 72.As a result, Drainage 702 can be generally formed into the structure extended obliquely, and condensed water is more easy to be discharged by drainage 702, and the knot 70 structure of drainage element of structure is simpler, and material utilization amount is less, and occupied space is less, and small to the interference of flow of flue gas.

Further, draining support arm 72 is formed as drainpipe.The closure of drainage 702 is preferable as a result, can be to avoid When condensed water is more, condensed water before the discharge outlet 703 for not flowing to drainage 702 in advance flowed down from drainage 702 into And it is flow to burner 30, it can effectively further avoid influence of the condensed water to burner 30.

It is understood that the structure of drainage element 70 described above is only some embodiments of the present invention, in the present invention Drainage element 70 structure it is unlimited this, can also be other structures, for example, drainage element 70 may be formed as platy structure etc., This will be understood by for a person skilled in the art, will not enumerate herein.

Optionally, main heat exchange pipe 44 can be coaxially disposed with water storage cavity 101.Main heat exchange pipe 44 can be preferential by heat as a result, It reaches in the water at 101 middle part of water storage cavity, being transferred to heat in water can gradually transmit outward, and heat absorption is good.Master changes Heat pipe 44 can be formed as the constant straight tube of flow area, can also be formed as the reducer pipe of flow area variation, can basis Concrete condition is flexibly arranged.In addition, when the main heat exchange pipe 44 in the present embodiment and the heat exchange branch pipe 41 in previous embodiment When being applied in combination, main heat exchange pipe 44 can be used as middle part branch pipe 412 to use, or as middle part branch pipe 412 and upper heat exchanger tube 42 It is used with the combination of at least one of lower heat exchanger tube 43.

As shown in Figure 9 and Figure 10, in the present embodiment, positive displacement heat-exchanger rig 100 can also include heat exchange spoiler 60, The heat exchange setting of spoiler 60 is connected in main heat exchange pipe 44, and with main heat exchange pipe 44, and heat exchange spoiler 60 can be become owner of with convection current Flue gas in heat exchanger tube 44 plays the role of flow-disturbing, increases the time of contact of flue gas and main heat exchange pipe 44, heat exchange is more abundant, while cigarette Gas can also carry out heat exchange with heat exchange spoiler 60, and heat exchange spoiler 60 can be by the heat transfer of reception to main heat exchange pipe 44, increase the heat of main heat exchange pipe 44, promotes heating effect and efficiency to water, the exchange capability of heat of positive displacement heat-exchanger rig 100 Enhancing.

It will be appreciated by persons skilled in the art that setting being capable of flow-disturbing and enhancing exchange capability of heat in main heat exchange pipe 44 Heat exchange spoiler 60 is also only described as example, and others can also be arranged in main heat exchange pipe 44 can play flow-disturbing flue gas And the flow-disturbing heat exchange structure of enhancing exchange capability of heat, for example, heat exchange flow-disturbing protrusion etc..That is, according to embodiments of the present invention Positive displacement heat-exchanger rig 100 main heat exchange pipe 44 in heat exchange spoiler can be set, to enhance exchange capability of heat.

Associated description about heat exchange spoiler will hereinafter be described in detail, and not be described further herein.Separately Outside, the structure in the structures such as the liner 10 in the present embodiment, burner casing 20 and burner 30 and previous embodiment have it is identical or Similarity is not described in detail same or similar structure, specifically refers to foregoing teachings herein.

Figure 12 and Figure 13 shows the positive displacement heat-exchanger rig 100 according to sixth embodiment of the invention.Such as Figure 12 and figure Shown in 13, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include liner 10, burner casing 20,30 and of burner Exchange heat smoke pipe, and heat exchange smoke pipe may include main heat exchange pipe 44.It, can be selectively in main heat exchange pipe 44 according to the difference of heat transfer requirements Interior setting heat exchange spoiler, for example, heat exchange spoiler 60 etc., to improve heat transfer effect.The related content for the spoiler that exchanges heat will be It is explained in detail below, is not described further here.

Structure in the present embodiment has points of resemblance with the structure in the 5th embodiment, also has difference, for phase With or similar component use identical reference numeral, for details, reference can be made to the descriptions of front, are not described in detail herein, below it is right Main difference is described in detail.

As previously mentioned, in some cases, condensed water can be formed on the internal face of main heat exchange pipe 44, when condensed water amount compared with When more, condensed water can flow downward under the effect of gravity；When the amount of condensed water is less, gravity is smaller suffered by condensed water, condensation Water can be attached on the internal face of main heat exchange pipe 44, and one layer of water curtain, this layer of water are formed on the internal face to make main heat exchange pipe 44 Curtain can not only damage main heat exchange pipe 44, for example, corrosion main heat exchange pipe 44, but also can be to flue gas and main heat exchange pipe 44 Heat exchange causes to stop, the heat in flue gas cannot fully be absorbed by main heat exchange pipe 44, kept heat exchange efficiency low, influenced to water Heating effect.

In the present embodiment, at least part of main heat exchange pipe 44 is formed as reducing pipe, and the flow area of reducing pipe exists Flow of flue gas is successively decreased on direction.Here, the flow area of reducing pipe may be generally understood to the cross-sectional area of the inside of reducing pipe (or radial section product).When main heat exchange pipe 44 is installed in water storage cavity 101, at least part internal face of necking down pipe can be with It tilting obliquely so that the contact area of condensed water and the internal face of main heat exchange pipe 44 is smaller, and condensed water is easier to flow downward, The attachment on the internal face of main heat exchange pipe 44 is reduced, corrosion impact of the condensed water to main heat exchange pipe 44 can be mitigated, it is same with this When, the probability of water curtain is formed on the internal face of main heat exchange pipe 44 to be reduced, and can reduce influence of the condensed water to heat exchange, raising is changed The thermal efficiency.

Meanwhile necking down is tubular as up big and down small structure so that the flue gas flow rate in lower part is slower, the flue gas on top Faster, the time of contact for carrying the relatively high flue gas and main heat exchange pipe 44 of heat is longer, more conducively absorbs heat, simultaneously for flow velocity The flow velocity for carrying the relatively low flue gas of heat is more easy to the outflow external world, is further conducive to exchange heat.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention, by forming at least part of main heat exchange pipe 44 Reducing pipe can weaken the formation of water curtain on main heat exchange pipe 44, can improve heat exchange efficiency, promote the efficiency of heating surface and effect to water Fruit, heat utilization ratio is promoted, while can also reduce damage of the condensed water to main heat exchange pipe 44, and positive displacement heat-exchanger rig 100 makes With longer life expectancy, more reliable performance.

In some embodiments of the invention, necking down pipe can be formed in the top of main heat exchange pipe 44.Thus, it is possible to reduce The top of main heat exchange pipe 44 is formed by water curtain, meanwhile, when condensed water flows downward can be attached to main heat exchange pipe 44 on the way Internal face on condensed water merge, the condensed water of lower part can be driven to flow downward, it is possible to reduce the lower part of main heat exchange pipe 44 Internal face occur water curtain.

As shown in Figure 12 and Figure 13, main heat exchange pipe 44 is integrally formed as reducing pipe.That is, in the flowing side of flue gas Upwards, i.e., on direction from bottom to top, the flow area of main heat exchange pipe 44 successively decreases.Thus, it is possible to increase the interior of main heat exchange pipe 44 The sloping portion of wall surface can be further reduced the formation of water curtain, improve heat exchange efficiency and effect.

Optionally, the inner peripheral surface of reducing pipe is integrally formed inwardly to tilt the inclined-plane extended upwards.That is, contracting In the circumferential direction of diameter pipe, each position of internal face is all formed as being upwardly and inwardly inclined the oblique of extension in the flow direction of the flue gas Face.The internal face of necking down pipe integrally is not easy to form water curtain as a result, and keeps flow of flue gas evenly smooth, can be further Improving heat exchanging efficiency and effect.

In the present invention, the radial section of main heat exchange pipe 44 is not done it is specifically limited, can be various shapes, for example, Circular ring shape, polygonal annular or abnormity etc..When the radial section of main heat exchange pipe 44 is formed as circular ring shape, not only facilitate manufacture, Good appearance, and keep flow of flue gas evenly and smooth, it can further improving heat exchanging efficiency.

Figure 14 is to Figure 17 shows the positive displacement heat-exchanger rigs 100 according to seventh embodiment of the invention.Such as Figure 14 to figure Shown in 17, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include liner 10, burner casing 20,30 and of burner Exchange heat smoke pipe, and heat exchange smoke pipe may include main heat exchange pipe 44.It, can be selectively in main heat exchange pipe 44 according to the difference of heat transfer requirements Interior setting heat exchange spoiler, for example, heat exchange spoiler 60 etc., to improve heat transfer effect.The related content for the spoiler that exchanges heat will be It is explained in detail below, is not described further here.

4 to shown in Figure 17 referring to Fig.1, in the present embodiment, heat exchanger channels 103, heat exchange can be equipped on the side wall of liner 10 The both ends in channel 103 extend respectively to the upper and lower part of liner 10 and are connected to respectively with extraneous and combustion chamber 202.In other words, The upper end of heat exchanger channels 103 extends to the top of liner 10, and is in communication with the outside, in the lower parts of heat exchanger channels 103 extends to The lower part of courage 10, and be connected to combustion chamber 202.

The flue gas that burner 30 generates as a result, can not only enter in main heat exchange pipe 44, but also can pass through combustion chamber 202 enter in heat exchanger channels 103, flue gas can with liner 10 occur heat exchange, liner 10 can further with water storage cavity 101 In water occur heat exchange so that the heat of flue gas can be transferred to by liner 10 in water, at this point, the water in water storage cavity 101 It can be heated simultaneously from inner side and outer side, water is heated evenly, and heating is faster.Meanwhile the side wall of liner 10 can be with flue gas Carry out heat exchange so that heat exchange area is increased, to increase the exchange capability of heat of positive displacement heat-exchanger rig 100.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention passes through the setting in water storage cavity 101 and combustion chamber 202 The main heat exchange pipe 44 of connection and the heat exchanger channels 103 that setting is connected to combustion chamber 202 on the side wall of liner 10 so that burning The flue gas of heat is carried in chamber 202 not only can flow out the external world by main heat exchange pipe 44, can also be flowed out by heat exchanger channels 103 The external world can also be passed heat by liner 10 in this way, flue gas can not only be transferred heat to by main heat exchange pipe 44 in water It is handed in water, heat exchange area increases, and evenly to the heating of water, heating speed is faster and Btu utilization is more abundant.

Optionally, heat exchanger channels 103 can surround combustion chamber 202 and be arranged.The peripheral wall of liner 10 can be straight with flue gas as a result, Contact can further increase heat exchange area to carry out heat exchange, be heated faster evenly to water.For example, the present invention's In some specific examples, heat exchanger channels 103 are configured to surround the spiral shape of the setting of combustion chamber 202.For another example the present invention's In other specific examples, heat exchanger channels 103 are configured to surround the annular of the setting of combustion chamber 202.These structures can carry It rises and adds hot water function, and heat exchanger channels 103 can also play the effect of external thermal insulation, can reduce heat and scatter and disappear outward.

As shown in Figure 14 to Figure 17, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention can also include shell 50, Liner 10 and burner casing 20 may be provided in shell 50, and the top of shell 50 can be equipped with outer vent 501, and outer vent 501 can connect Logical main heat exchange pipe 44 and the external world, can also be connected to heat exchanger channels 103 and the external world so that the flue gas of main heat exchange pipe 44 and heat exchange are logical Shell 50 can be discharged by outer vent 501 in flue gas in road 103, and venting quality is good.

When positive displacement heat-exchanger rig 100 has shell 50, as optional embodiment, heat exchanger channels 103 can be by outer The internal face of shell 50 and the outside wall surface of liner 10 limit, as shown in Figure 14 to Figure 16.It is not necessarily on the side wall of liner 10 as a result, It exclusively carries out and digs through, it is possible to reduce the destruction to liner 10,10 intensity of liner is higher, while being also more convenient for manufacturing.

Certainly, the formation of heat exchanger channels 103 is without being limited thereto, for example, heat exchanger channels 103 can also be arranged in the side of liner 10 The inside of wall, at this point, without coordinating liner 10 and shell 50, flexibility is stronger.In addition, heat exchanger channels 103 not only limit In only being limited by the outside wall surface of the internal face of shell 50 and liner 10, a part of of heat exchanger channels 103 can also be by shell 50 It is limited with burner casing 20.That is, in the present invention, heat exchanger channels 103 can at least by the internal face of shell 50 and The outside wall surface of liner 10 limits.

For example, as shown in Figure 14 to Figure 16, when the lower part of heat exchanger channels 103 extends at burner casing 20, heat exchange is logical The lower part in road 103 can be limited by the outside wall surface of burner casing 20 and the internal face of shell 50, at this point, the side of burner casing 20 On wall can be equipped with connection combustion chamber 202 and heat exchanger channels 103 blow vent 201 so that flue gas can by blow vent 201 into Enter into heat exchanger channels 103.At this point, the length of heat exchanger channels 103 is longer, the heat-exchange time and heat-transfer surface of flue gas can be increased Product further promotes the exchange capability of heat of positive displacement heat-exchanger rig 100.

The quantity of blow vent 201 is not done it is specifically limited, can be one, or it is multiple.When blow vent 201 wraps When including multiple, multiple blow vents 201 can be along the circumferentially spaced setting of burner casing 20.Thus, it is possible to make in combustion chamber 202 Flue gas faster more uniformly enters in heat exchanger channels 103, can further promote the heat-energy transducer of positive displacement heat-exchanger rig 100 Power, while the timely outflow of flue gas can also promote the burning of burner 30.Special limit is not done for the shape of blow vent 201 System, optionally, blow vent 201 can be formed as round hole, polygonal hole or irregularly-shaped hole etc..

In the present embodiment, as shown in Figure 14 to Figure 17, shell 50 may include inner housing 51 and outer housing 52, outer housing 52 It is located at the outside of inner housing 51, installing port 521 can be equipped on outer housing 52, as shown in figure 17, the upper end of inner housing 51 is salable Be connected in installing port 521, outer vent 501 may be provided at the upper end of inner housing 51, the peripheral surface of the upper end of main heat exchange pipe 44 with The inner peripheral wall of outward opening is spaced apart.

Outer vent 501 will not completely be sealed by main heat exchange pipe 44 as a result, can be formed between being connected to heat exchanger channels 103 Gap so that the flue gas of heat exchanger channels 103 can flow out shell 50, meanwhile, flue gas in main heat exchange pipe 44 can by itself Upper end opening flows out shell 50, and row is more smooth outside flue gas, and outer housing 52 and 51 sealed set of inner housing, can be to avoid flue gas It enters between inner housing 51 and outer housing 52, avoids 50 inner product cigarette of shell.

Further, as shown in figure 17, the upper end of inner housing 51 may extend in installing port 521, and inner housing 51 The peripheral surface of upper end is tightly connected with outer housing 52, and sealed connection can be the connection types such as welding or bonding.Outer vent 501 can Stretching on the part in installing port 521 in inner housing 51 be set, the upper end of main heat exchange pipe 44 can clearance fit in outer vent 501 It is interior.The upper end of main heat exchange pipe 44 can form the structure of similar casing, good connecting effect with the upper end of shell 50 as a result,.

To improve heat insulation effect, insulating layer can be set, and insulating layer can reduce liner between inner housing 51 and outer housing 52 Heat in 10 scatters and disappears outward, and the hot water in liner 10 is made to be not easy to cool down.Insulating layer is not particularly limited, it can be according to tool Body situation flexibly selects different materials to be kept the temperature.

Figure 18 and Figure 19 shows the positive displacement heat-exchanger rig 100 according to eighth embodiment of the invention.Such as Figure 18 to figure Shown in 19, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include liner 10, burner casing 20,30 and of burner Exchange heat smoke pipe, and heat exchange smoke pipe may include main heat exchange pipe 44.It is similar with previous embodiment, according to the difference of heat transfer requirements, this implementation Heat exchange spoiler can be selectively arranged in example in main heat exchange pipe 44, for example, heat exchange spoiler 60, to improve heat transfer effect. The related content of heat exchange spoiler will be described in detail below, and not be described further here.

Structure in the present embodiment has points of resemblance with the structure in the 7th embodiment, also has difference, for phase Same or similar component uses identical reference numeral, and for details, reference can be made to the descriptions of front, are not described in detail herein.It is right below Main difference is described in detail.

Referring to Fig.1 shown in 8 and Figure 19, in the present embodiment, it is also equipped with heat exchanger channels 103 on the side wall of liner 10, changes The upper end of the passage of heat 103 extends to the top of liner 10, and the lower end of heat exchanger channels 103 extends to the lower part of liner 10, and heat exchange is logical The structure in road 103 can refer to the description of preceding embodiment, and details are not described herein.

Unlike the 7th embodiment, the positive displacement heat-exchanger rig 100 of the present embodiment further includes air passage 104, is led to Air flue 104 is arranged in the bottom of liner 10 and extends in water storage cavity 101.One end of air passage 104 connects with combustion chamber 202 Logical, the other end of air passage 104 is connected to the lower part of heat exchanger channels 103, and the top of heat exchanger channels 103 is in communication with the outside.

The flue gas in combustion chamber 202 can not only enter in main heat exchange pipe 44 as a result, pass through main heat exchange pipe 44 and liner Water in 10 carries out heat exchange, but also can be entered in heat exchanger channels 103 by air passage 104, and passes through heat exchanger channels 103 outflows are extraneous.Since air passage 104 extends in water storage cavity 101 so that the flue gas entered in air passage 104 is preferably logical The water crossed in liner 10 and water storage cavity 101 carries out heat exchange, and the area bigger of heat exchange is more preferable to water heating effect, it is laggard Entering the flue gas in heat exchanger channels 103 can continue to carry out heat exchange with the side wall of liner 10, and by liner 10 by heat transfer Into water.

At this point, the water in water storage cavity 101 can be heated from inside, outside and bottom simultaneously, water is heated evenly, adds Heat is faster.Meanwhile liner 10 side and bottom can with flue gas carry out heat exchange so that heat exchange area is increased, from And increase the exchange capability of heat of positive displacement heat-exchanger rig 100.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention passes through the setting in water storage cavity 101 and combustion chamber 202 Heat exchanger channels 103 are arranged and in the setting connection combustion of the bottom of liner 10 in the main heat exchange pipe 44 of connection on the side wall of liner 10 It burns chamber 202 and heat exchanger channels 103 and extends to the air passage 104 in water storage cavity 101 so that carry heat in combustion chamber 202 Flue gas not only can flow out the external world by main heat exchange pipe 44, be flowed out outside by heat exchanger channels 103 after may also pass through air passage 104 Boundary, flue gas can not only be transferred heat to by main heat exchange pipe 44 in water, can also transfer heat to water by liner 10 In, heat exchange area increases, and evenly to the heating of water, heating speed is faster and Btu utilization is more abundant.

As shown in figure 18, air passage 104 is formed as the U-shaped that Open Side Down, also just says, air passage 104, which has, rises cigarette Road and downward-flow flue.The flue gas in combustion chamber 202 can first rise in air passage 104 as a result, decline again after to be flowed into heat exchange logical In road 103, flow of flue gas is more smooth, and can further increase the contact area of flue gas and liner 10, further promotion pair The heating effect and efficiency of water.

Further, the top wall surface of air passage 104 is formed as arc.As a result, by the mistake of uptake flue to downward-flow flue It crosses more gently, the flue gas of rising is more easy to the downward-flow flue that conversion direction enters air passage 104, and flow of flue gas is more smooth, noise It is smaller.

Certainly, in the present invention, the shape of air passage 104 is not limited to U-shaped, can also be the shape of other complications, for example, S-shaped, this will be understood by for a person skilled in the art, and this will not be detailed here.

As shown in Figure 18 and Figure 19, the bottom wall of liner 10 can be formed with lower fluting to 101 sunken inside of water storage cavity, lower fluting Opening can may also include separator 80 towards combustion chamber 202, positive displacement heat-exchanger rig 100, and separator 80 may be provided in combustion chamber 202 It is interior, and the upper end of separator 80 can stretch into lower fluting, and air passage 104 is formed to separate lower fluting.Not only facilitate system as a result, It makes, and combustion chamber 202 can also be separated by separator 80 so that combustion chamber 202 and lower fluting can be in separators 80 Separation under form larger sized air passage 104, gas fluidity is more preferable, is conducive to exchange heat.

Separator 80 be formed as it is a variety of, optionally, in the embodiment shown in Figure 18 and Figure 19, separator 80 be annular Plate, and separator 80 can be extended downwardly beyond burner 30, that is to say, that and the level height of the lower end of separator 80 is not higher than The level height of the lower end of burner 30.Separator 80 can surround burner 30 from outside as a result, not only can be to burning Device 30 plays a protective role, but also can more fully separated combustion chamber 202, the further length for extending air passage 104 make Flue gas is easier to flow up, and carries out subsequent heat exchange, and flue gas is avoided to gather in combustion chamber 202.

Optionally, heat exchanger channels 103 can surround combustion chamber 202 and be arranged.The peripheral wall of liner 10 can be straight with flue gas as a result, Contact can further increase heat exchange area to carry out heat exchange, be heated faster evenly to water.Further, air passage 104 may include multiple, and multiple air passages 104 can be along the circumferentially spaced setting of liner 10.Cigarette in combustion chamber 202 as a result, Gas can be entered by multiple air passages 104 in heat exchanger channels 103 simultaneously, and flow of flue gas evenly and quickly, can be into one Step promotes exchange capability of heat, meanwhile, the space that air passage 104 occupies 10 bottom of liner will not be too many, is influenced on the volume of liner 10 It is smaller.

As shown in Figure 18 and Figure 19, when air passage 104 be formed as along liner 10 it is circumferentially spaced multiple when, separate Part 80 can be formed as annular slab, and specifically, separator 80 includes annular body and multiple demarcation strips, and annular body is located at burning In chamber 202 and upper end is connected with the bottom wall of liner 10, and multiple divider plates are arranged in the upper end of annular body and one by one Correspondence stretches into multiple lower flutings, to separate each lower fluting.Not only segregation is good as a result, but also the installation of separator 80 can It leans on.

Figure 20 to Figure 23 shows the positive displacement heat-exchanger rig 100 according to ninth embodiment of the invention.Such as Figure 20 to figure Shown in 23, positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention may include liner 10, burner casing 20,30 and of burner Exchange heat smoke pipe, and heat exchange smoke pipe may include main heat exchange pipe 44.

As shown in Figure 20 to Figure 23, in the present embodiment, the heat exchange spoiler 60 of strip can be equipped in main heat exchange pipe 44, Heat exchange spoiler 60 is connected with main heat exchange pipe 44.The flue gas that heat exchange spoiler 60 can be become owner of in heat exchanger tube 44 with convection current plays flow-disturbing Effect, increase flue gas and main heat exchange pipe 44 time of contact, heat exchange it is more abundant, while flue gas can also with exchange heat spoiler 60 into The heat transfer of reception to main heat exchange pipe 44 can be increased the heat of main heat exchange pipe 44, carried by row heat exchange, heat exchange spoiler 60 Rise the heating effect and efficiency to water.

It is understood that in order to realize with flue gas heat exchange and carry out flow-disturbing to flue gas, in main heat exchange pipe 44 and not only It is limited to setting heat exchange spoiler 60, for example, it is also possible to which heat exchange flow-disturbing protrusion etc. is arranged, this is for a person skilled in the art can With understanding.That is, in the present invention it is possible in the main heat exchange pipe 44 setting can with flue gas heat exchange and to flue gas into The heat exchange spoiler of row flow-disturbing promotes the efficiency of heating surface and effect to water to enhance exchange capability of heat.

Positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention, by the way that heat exchange spoiler is arranged in main heat exchange pipe 44, Heat exchange spoiler can be such that the heat in flue gas is more transferred in water storage cavity 101 in water, promoted to the efficiency of heating surface of water and Effect, heat utilization ratio improve.

Optionally, as shown in Figure 20 to Figure 23, heat exchange spoiler 60 may include multiple, and multiple heat exchange spoilers 60 can edge The circumferentially spaced setting of main heat exchange pipe 44, each outer end for exchanging heat spoiler 60 can be connected with main heat exchange pipe 44, Duo Gehuan The inner end of hot spoiler 60 is separated from each other.As a result, peripheral venting channels can be formed between two neighboring heat exchange spoiler 60 401, it can circumferentially be divided into multiple peripheral venting channels 401 in main heat exchange pipe 44, also, the middle part of main heat exchange pipe 44 can be with Substantially form the middle part venting channels 402 being connected to each peripheral venting channels 401.In this way, part of smoke can be with It is directly over middle part venting channels 402 to flow from bottom to top, the external world is discharged, another part flue gas can be in peripheral venting channels Flowing in 401, evenly, exchange capability of heat is promoted flow of flue gas.

As shown in figure 22, each heat exchange spoiler 60 can radially extending along main heat exchange pipe 40, that is to say, that Mei Gehuan The extending direction of hot spoiler 60 passes through the central axis of main heat exchange pipe 40.Heat exchange spoiler 60 is to main heat exchange pipe 44 as a result, Segregation is more preferable, and evenly, flowing is more smooth for smoke distribution.

Further, multiple flow-disturbing holes 601 can be each equipped on heat exchange spoiler 60, multiple flow-disturbing holes 601 can be changed along master The axially spaced setting of heat pipe 44.Two neighboring peripheral venting channels 401 can be connected by multiple flow-disturbing holes 601 as a result, Logical, the flue gas in two neighboring periphery venting channels 401 can communicate with each other, and mixed flow occurs, the flow-disturbing for the spoiler 60 that exchanges heat It is stronger.As shown in Figure 20 and Figure 23, flow path of the flue gas in main heat exchange pipe 44 is more complicated, has venturi effect, increases The synergistic effect of velocity field and temperature field, and gas residence time is also increased, to increase exchange capability of heat, and can also make Flue gas is more equally distributed in main heat exchange pipe 44, is kept the hot water in liner 10 heated evenly, is further promoted exchange capability of heat.

As shown in Figure 20 to Figure 23, each spoiler 60 that exchanges heat may include spoiler main body 61 and heat exchange fin respectively 62.The outer end of spoiler main body 61 can be connected with main heat exchange pipe 44, and flow-disturbing hole 601 may be provided in spoiler main body 61.Heat exchange Fin 62 may include multiple, and multiple heat exchange fins 62 connect one to one on the upper edge in multiple flow-disturbing holes 601.Namely It says, multiple heat exchange fins 62 are corresponded with multiple flow-disturbing holes 601, and each heat exchange fin 62 is arranged in corresponding flow-disturbing hole 601 Upper edge on.

Wherein, the angle theta in each heat exchange fin 62 and flow of flue gas direction is more than or equal to 90 degree and is less than 180 degree.Here, The flow direction of flue gas can be understood as the flow direction of flue gas entirety, it is however generally that, the flow direction of flue gas is from bottom to top Direction, upper and lower directions as shown in figure 20.That is, heat exchange fin 62 can tilt obliquely relative to vertical direction.

The flue gas flowed between two neighboring peripheral venting channels 401 as a result, can be at the end for flowing through heat exchange fin 62 When portion, the vortex of bigger can be formed at the upper back side of the end of heat exchange fin 62, the collaboration in can increase speed field and temperature field Effect, and gas residence time can also be increased, to enhance the heat exchange of flue gas and main heat exchange pipe 44 and flow-disturbing heat exchanger fin Ability, while the uniformity of smoke distribution can be further promoted, keep the hot water of liner 10 heated evenly, further promotes heat exchange Ability.

Further, the value range of each heat exchange fin 62 and the angle theta in flow of flue gas direction can be 120 degree -150 It spends (including two endpoint values).For example, the angle theta in each heat exchange fin 62 and flow of flue gas direction can be 135 degree.

As shown in Figure 20 to Figure 23, on flow of flue gas direction, each two neighboring heat exchange wing to exchange heat on spoiler 60 Piece 62 is respectively provided at both sides of the spoiler main body 61 in the circumferential direction of main heat exchange pipe 44.As a result, on flow of flue gas direction, each Heat exchange spoiler 60 can form heat exchange fin 62 positioned at circumferential side and the heat exchange fin 62 of the other side is alternate sets positioned at circumferential direction The structure set, it is more preferable to the flow-disturbing effect of flue gas.

Optionally, as shown in Figure 20 and Figure 23, the quantity of the heat exchange fin 62 on multiple heat exchange spoilers 60 is identical and sets It is equal one by one to set height, in the circumferential direction of main heat exchange pipe 44, the heat exchange fin 62 on two neighboring heat exchange spoiler 60 is located at pair The same side for the spoiler main body 61 answered.For example, it is assumed that two heat exchange spoilers 60 being adjacently positioned in the circumferential direction of heat exchanger fin Respectively spoiler one and spoiler two, the heat exchange fin 62 on spoiler one are located at the spoiler main body 61 of spoiler one in master The heat exchange fin 62 on the side of spoiler two, spoiler two in the circumferential direction of heat exchanger tube 44 is located at the flow-disturbing of spoiler two Side towards spoiler one of the piece main body 61 in the circumferential direction of main heat exchange pipe 44.

Flue gas may be implemented to be vortexed but not occur sinuous flow in main heat exchange pipe 44 as a result, can both promote flue gas and master The heat exchange of heat exchanger tube 44 and the spoiler 60 that exchanges heat, while can also ensure that the flue gas after heat exchange can flow upwards out in time, it keeps away Exempt from the prolonged stay in main heat exchange pipe 44, flow of flue gas is good.

The foregoing describe positive displacement heat-exchanger rigs 100 according to the ... of the embodiment of the present invention.It is understood that described above Structure in the positive displacement heat-exchanger rig 100 of these embodiments can be arbitrarily combined with each other in the case of no contradiction, and It is non-to be individually located in some described specific embodiment.For example, the positive displacement heat-exchanger rig of the 5th embodiment The positive displacement heat-exchanger rig 100 that 100 drainage element 70 can be combined with the to the 6th to the 9th embodiment is medium.

It will be appreciated by persons skilled in the art that positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention can also be set There are the inlet and outlet being connected to water storage cavity 101, to facilitate inflow and outflow.Further, water inlet can be arranged The outlet pipe 130 being connected to water storage cavity 101 can be arranged in the water inlet pipe 120 being connected to water storage cavity 101, water outlet, with convenient It is connected with other external devices.

Other of positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention are constituted and are operated for the common of this field It is known for technical staff, is not described in detail herein.

Figure 24 and Figure 25 shows heat exchange spoiler 60 according to an embodiment of the invention, and Figure 26 and Figure 27 further show Installation situation of the heat exchange spoiler 60 on a positive displacement heat-exchanger rig 100 is gone out.It is understood that according to the present invention The heat exchange spoiler 60 of embodiment is not limited only to be installed on positive displacement heat-exchanger rig 100 shown in Figure 26, can also be arranged In positive displacement heat-exchanger rig 100 described in some of the above embodiment.

Moreover, heat exchange spoiler 60 according to the ... of the embodiment of the present invention can also be arranged the positive displacement in other structures and change In thermal.For example, in some specific examples, heat exchange spoiler 60 also may be mounted to without burner or burner simultaneously Be not disposed on the positive displacement heat-exchanger rig below liner, at this point, in positive displacement heat-exchanger rig heat exchange smoke pipe lower end and its It can supply being connected for cigarette device for the flue gas for carrying heat, and the setting of heat exchange spoiler 60 is in heat exchange smoke pipe, at this point, volume Formula heat-exchanger rig can also utilize flue gas to realize the heating to water.

Heat exchange spoiler 60 according to the ... of the embodiment of the present invention is explained in further detail with reference to Figure 24 to Figure 27.

As shown in figure 24 to figure 27, heat exchange spoiler 60 according to an embodiment of the invention may include spoiler main body 61 With multiple heat exchange fins 62, spoiler main body 61 is formed as strip, multiple flow-disturbing holes can be equipped in spoiler main body 61 601, multiple flow-disturbing holes 601 can be spaced apart setting along the length direction of spoiler main body 61.The both ends of spoiler main body 61 can It is respectively formed as meeting cigarette end and back of the body cigarette end, when exchanging heat, spoiler 60 is installed to heat exchange smoke pipe, for example, master as shown in Figure 26 changes When in heat pipe 44, in the flow direction of the flue gas, cigarette end is met in the upstream end of spoiler main body 61 to be above-mentioned, spoiler main body 61 Downstream is above-mentioned back of the body cigarette end.In fig. 26, the flow direction of flue gas be from bottom to top, therefore, the lower end of spoiler main body 61 To meet cigarette end, the upper end of spoiler main body 61 is back of the body cigarette end.

As a result, when spoiler main body 61 is installed in main heat exchange pipe 44, the inside of main heat exchange pipe 44 can be divided Every so that flue gas is more evenly distributed in main heat exchange pipe 44, meanwhile, the flow-disturbing hole 601 in spoiler main body 61 can be connected to position Space in 44 both sides of main heat exchange pipe so that flue gas is mutually flowed in both sides, increases the residence time of flue gas, to increase heat exchange Ability.

Further, multiple heat exchange fins 62 connect one to one at the edge at the adjacent back cigarette end in multiple flow-disturbing holes 601 On, that is to say, that multiple heat exchange fins 62 are corresponded with multiple flow-disturbing holes 601, and each heat exchange fin 62 is located at corresponding disturb Discharge orifice 601 distance the back of the body cigarette end closer to edge on.Each heat exchange fin 62 can be to far from spoiler main body 61 and to meeting cigarette end Direction tilt extend.That is, each heat exchange fin 62 is obliquely installed relative to spoiler main body 61, heat exchange fin 62 Free end (one end i.e. far from back of the body cigarette end) is far from spoiler main body 61 so that heat exchange fin 62 can be with 61 shape of spoiler main body It is at a certain angle.

When spoiler main body 61 is installed in main heat exchange pipe 44, heat exchange fin 62 tilts obliquely, is changed when flue gas flows through Vortex can be formed at the upper back side of the end of heat exchange fin 62 when the end of hot fin 62, can increase speed field and temperature field Synergistic effect, and gas residence time can be further increased, enhancing flue gas and main heat exchange pipe 44 and heat exchange spoiler 60 exchange capability of heat, while the uniformity of smoke distribution can be further promoted, keep the hot water in liner 10 heated evenly, into one Step promotes exchange capability of heat.

Heat exchange spoiler 60 according to the ... of the embodiment of the present invention is arranged by being spaced on the length direction of spoiler main body 61 Simultaneously inclined heat exchange fin 62 is arranged at the edge at the adjacent back cigarette end in flow-disturbing hole 601 in multiple flow-disturbing holes 601, can be promoted to cigarette The flow-disturbing effect of gas, flue gas can be with eddy generation in heat exchange smoke pipe, and is more evenly distributed, and can enhance heat exchange smoke pipe and change Hot spoiler 60 with the exchange capability of heat of flue gas, enables heat exchange smoke pipe and heat exchange spoiler 60 more fully to absorb flue gas respectively Heat can promote the heating efficiency to water of positive displacement heat-exchanger rig 100.

The angle α formed between heat exchange fin 62 and spoiler main body 61 is not done it is specifically limited, optionally, according to this Some embodiments of invention, the angle α of heat exchange fin 62 and spoiler main body 61 can be 30 degree -60 and spend (including two endpoints Value), flow-disturbing and good effect of heat exchange.For example, in the specific example of the present invention, heat exchange fin 62 and spoiler main body 61 Angle is 30 degree, 45 degree, 50 degree etc..

As shown in figure 24, spoiler main body 61 may include main flow-disturbing section 611 and construction section 612, can be set in main flow-disturbing section 611 Thanks for your hospitality discharge orifice 601 and heat exchange fin 62.One end of construction section 612 is connected with one end of main flow-disturbing section 611, construction section 612 it is another One end is formed as carrying on the back cigarette end, and mounting portion 6121 can be equipped on construction section 612.Wherein, the width of construction section 612 can be more than main flow-disturbing The width of section 611.As a result, when the spoiler 60 that exchanges heat is toward when installing on main heat exchange pipe 44, the size of main flow-disturbing section 611 is relatively more It is small, it is easier to it places, and can be attached by construction section 612 and main heat exchange pipe 44 in main heat exchange pipe 44, connection behaviour It is more convenient.

Optionally, as shown in figures 24 and 25, in the present embodiment, mounting portion 6121 is formed as opening direction and meets cigarette end Slot, slot may include two, and two slots can be located at construction section 612 respectively protrude from main flow-disturbing section 611 Both ends.Construction section 612 can be plugged into the upper end of main heat exchange pipe 44 by two slots as a result, which can refer to figure Shown in 17, heat exchange spoiler 60 can be suspended in main heat exchange pipe 44, firmly installed and facilitated and dismounted.

It should be noted that the structure of mounting portion 6121 shown in Figure 24 and Figure 25 is only described as example, In the present invention, particular/special requirement is not done for the structure of mounting portion 6121, heat exchange spoiler 60 is fixed to master as long as can realize Requirement on heat exchanger tube 44, for example, mounting portion 6121 may be formed as clamping structure etc..

Shown in Figure 24 and Figure 25, in the width direction of main flow-disturbing section 611, the two sides of main flow-disturbing section 611 It can be equipped with flanging 6111 along difference.When the spoiler 60 that exchanges heat is located in main heat exchange pipe 44, flanging 6111 can enhance heat exchange and disturb The intensity of flow 60 avoids heat exchange spoiler 60 from bending, and use is more reliable, meanwhile, flanging 6111, which can also play, further to be divided Effect every the inner space of main heat exchange pipe 44 further promotes the heat exchange property of heat exchange spoiler 60.Further, main flow-disturbing It the two sides of section 611 can be on the contrary, as shown in figure 27 along the overbending direction of upper flanging 6111.The both sides of main flow-disturbing section 611 as a result, It can further promote the integral strength and exchange capability of heat of heat exchange spoiler 60 there are one flanging 6111.

Optionally, flanging 6111 can flexibly be set as the case may be relative to 61 bending degree of spoiler main body It sets, the present invention is not particularly limited this.As shown in figure 27, flanging 6111 can extend camber, and the flanging 6111 of arc can To further enhance the vortex of flue gas, the exchange capability of heat of heat exchange spoiler 60 and flue gas is further promoted.

As shown in figure 24, multiple lightening holes 6112 can be equipped in spoiler main body 61.Heat exchange can be not only reduced as a result, to disturb The material utilization amount of flow 60 reduces cost, while the temperature of heat exchange spoiler 60 can also be avoided excessively high.For lightening hole 6112 Shape do not do particular/special requirement, round, polygon or abnormity etc. can be formed as.Optionally, the adjacent flow-disturbing of any two Lightening hole 6112 there are two being set between hole 601, two lightening holes 6112 can be along the width direction interval of spoiler main body 61 It opens.The arrangement of lightening hole 6112 is more reasonable as a result, smaller to the integral strength and stability influence of spoiler main body 61.

Heat exchange spoiler 60 according to the ... of the embodiment of the present invention can make heat exchange fin 62 and flow-disturbing hole when actually manufacturing 601 shape and size all same.That is, heat exchange fin 62 can be completely covered on flow-disturbing hole 601.This kind of structure Heat exchange spoiler 60 can be stamped and formed out, and go out flow-disturbing hole 601 first, then script is in the material of 601 position of flow-disturbing hole It is bent relative to spoiler main body 61, it is easily manufactured.

As shown in figure 24, heat exchange fin 62 with 61 disjunct edge of spoiler main body is formed as arc.It exchanges heat as a result, The edge of fin 62 is more round and smooth, and heat exchange fin 62 can be generally formed into semicircle, not only assembles installation and improves, but also can be with Promote the flow-disturbing effect to flue gas.Certainly, in the present invention, the shape of heat exchange fin 62 is without being limited thereto, for example, it is also possible to be formed It is as shown in Figure 22 rectangular.

In certain specific embodiments of the invention, heat exchange spoiler 60 is integrated.Heat exchange not only can be improved as a result, The integral strength and structural stability of spoiler 60, and facilitate molding, be simple to manufacture, positive displacement heat-exchanger rig 100 can be improved Efficiency of assembling.

Other of heat exchange spoiler 60 according to the ... of the embodiment of the present invention constitute and operate the ordinary skill for this field It is known for personnel, is not described in detail herein.

Water heater according to the ... of the embodiment of the present invention may include positive displacement heat-exchanger rig 100 according to the ... of the embodiment of the present invention, It may include heat exchange spoiler 60 according to the ... of the embodiment of the present invention.Due to positive displacement heat-exchanger rig according to the ... of the embodiment of the present invention 100 are respectively provided with above-mentioned beneficial technique effect, therefore water-heater heat-exchanging according to the ... of the embodiment of the present invention with heat exchange spoiler 60 Capability improving, the ability for heating water are preferable.

Other of water heater according to the ... of the embodiment of the present invention constitute and operate to come for those of ordinary skill in the art It says it is known, is not described in detail herein.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

In the description of this specification, the description of reference term " embodiment " or " example " etc. mean to combine the embodiment or Example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.At this In specification, schematic expression of the above terms may not refer to the same embodiment or example.Moreover, description is specific Feature, structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.

Claims

1. a kind of positive displacement heat-exchanger rig, which is characterized in that including：

Burner casing defines the combustion chamber of open upper end in the burner casing；

Burner, the burner are located in the combustion chamber to generate flue gas；

Liner, the liner are located at the upper end of the burner casing, define water storage cavity in the liner, the water storage cavity it is upper There are the multiple upper openings being in communication with the outside, the lower part of the water storage cavity to have the under shed being connected to the combustion chamber in portion；

Multiple heat exchange branch pipes, multiple heat exchange branch pipes be located in the water storage cavity and the upper end of multiple heat exchange branch pipes one by one It is accordingly sealingly disposed in multiple upper openings；

Lower heat exchanger tube, the lower heat exchanger tube are sealedly connected in the under shed, the upper end of the lower heat exchanger tube with it is multiple described The lower end of heat exchange branch pipe is tightly connected.

2. positive displacement heat-exchanger rig according to claim 1, which is characterized in that multiple heat exchange branch pipes include along described Multiple peripheral branch pipes of the circumferentially spaced distribution of liner.

3. positive displacement heat-exchanger rig according to claim 2, which is characterized in that multiple heat exchange branch pipes further include substantially Middle part branch pipe positioned at the center of the water storage cavity, multiple peripheral branch intervals are arranged in the periphery of the middle part branch pipe.

4. positive displacement heat-exchanger rig according to claim 3, which is characterized in that the middle part branch pipe, the upper heat exchanger tube It is coaxially disposed with the water storage cavity.

5. positive displacement heat-exchanger rig according to claim 2, which is characterized in that the lower part of each peripheral branch pipe extends Camber.

6. positive displacement heat-exchanger rig according to claim 1, which is characterized in that the bottom wall of the liner is formed as concave up Sunken arc, the under shed are located at the middle part of the bottom wall of the liner.

7. positive displacement heat-exchanger rig according to claim 1, which is characterized in that further include：

Shell, the liner and the burner casing are located in the shell, and the top of the shell is multiple described equipped with being connected to Exchange heat branch pipe and extraneous outer vent.

8. positive displacement heat-exchanger rig according to claim 7, which is characterized in that the outer vent includes multiple, Duo Gesuo Heat exchange branch pipe is stated to correspond with multiple outer vents, each heat exchange branch pipe stretched out out of corresponding the outer vent and It is connect with the body seal.

9. positive displacement heat-exchanger rig according to claim 1, which is characterized in that the lower heat exchanger tube and liner difference It is connected with the heat exchange branch pipe welding.

10. positive displacement heat-exchanger rig according to claim 1, which is characterized in that further include：Temperature controller, the temperature controller It stretches into the lower part of the water storage cavity and is connected with the burner.

11. a kind of water heater, which is characterized in that include the positive displacement heat exchange dress according to any one of claim 1-10 It sets.