CN216953542U - Condensing gas heat exchanger - Google Patents

Abstract

The utility model relates to a condensing gas heat exchange device, wherein condensed water entering an evaporation cavity absorbs heat from a heat exchange body and then is evaporated into steam, the steam enters an installation cavity from the evaporation cavity through a flow guide pipe and is finally discharged from a smoke outlet together with high-temperature smoke, so that no condensed water is discharged, a condensed water discharge pipeline is not required to be reserved, the condensing gas heat exchange device is convenient to install and construct on site, and the popularization and application of the condensing gas heat exchange device are facilitated. And, the comdenstion water is the evaporation heat absorption in the evaporation intracavity, can carry out cooling to the lateral wall of heat transfer body, avoids damaging electrical components because of the high temperature.

Description

Condensing gas heat exchanger

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a condensing gas heat exchange device.

Background

Condensing gas heat exchange devices such as condensing gas water heaters have high energy efficiency levels, and therefore, are widely applied to daily life. When the condensing gas heat exchange device is used, after the condenser and high-temperature flue gas carry out secondary heat exchange, condensed water can be generated in the condensation box, in order to avoid the condensed water accumulating in the condensation box to generate backflow, the condensed water needs to be timely discharged, and therefore, the condensation box is provided with a drainage connector. As most users do not reserve corresponding condensed water drainage pipelines before purchasing, great inconvenience is brought to field installation and construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a condensing type gas heat exchange device which can realize no condensed water discharge and is convenient for field installation and construction.

The first technical problem is solved by the following technical scheme:

condensing gas heat transfer device includes:

the heat exchange device comprises a heat exchange body, a heat exchanger and a heat exchanger, wherein the heat exchange body is provided with a flue gas channel for high-temperature flue gas to flow;

the condensation component comprises a condensation box and a condenser, the condensation box is provided with an installation cavity, a water outlet, a smoke outlet and a smoke inlet communicated with the smoke channel, the water outlet, the smoke outlet and the smoke inlet are all communicated with the installation cavity, and the condenser is arranged in the installation cavity and is arranged at intervals with the water outlet;

the evaporation element is provided with an evaporation cavity and is in thermal contact fit with the heat exchange body;

the water outlet is communicated with the evaporation cavity through the guide pipe, and the guide pipe can convey water vapor and condensed water simultaneously.

Compared with the background art, the condensing gas heat exchange device has the following beneficial effects: the condensed water entering the evaporation cavity absorbs the heat from the heat exchange body and then is evaporated into steam, the steam enters the installation cavity from the evaporation cavity through the guide pipe and finally is discharged from the smoke exhaust outlet together with high-temperature smoke, so that no condensed water is discharged, a condensed water discharge pipeline is not required to be reserved, the condensing gas heat exchange device is convenient to install and construct on site, and the popularization and the application of the condensing gas heat exchange device are facilitated. And, the comdenstion water is the evaporation heat absorption in the evaporation intracavity, can carry out cooling to the lateral wall of heat transfer body, avoids damaging electrical components because of the high temperature. Meanwhile, the condensed water absorbs heat and becomes high-temperature steam, and the temperature of the high-temperature flue gas is reduced after the high-temperature flue gas and the condenser perform secondary heat exchange, so that the steam and the high-temperature flue gas are discharged from the smoke exhaust port together, and the smoke exhaust temperature can be increased. And, can not increase condensing gas heat transfer device's volume, follow-up also need not frequently clear up the comdenstion water that gathers, convenient to use has improved user experience and has felt. Moreover, after the condensed water in the installation cavity is conveyed to the evaporation cavity through the guide pipe to be evaporated into steam, the guide pipe is reused to convey the steam into the installation cavity, the steam can be discharged from the smoke outlet together with high-temperature smoke, the guide pipe can guide the condensed water and can guide the steam, the pipeline structure can be greatly simplified, the problems of complex structure and large size caused by excessive pipelines are avoided, the site construction is convenient, and the occupied installation space is smaller.

In one embodiment, the heat exchange body comprises a heat exchanger, a combustor and a combustion chamber between the heat exchanger and the combustor; the evaporation element comprises an evaporation pipe surrounding the outer side wall of the combustion chamber, and the evaporation pipe is provided with the evaporation cavity; or the evaporation element comprises an evaporation box which is sleeved on the outer side wall of the combustion chamber formed between the heat exchanger and the combustor, and the evaporation cavity is arranged in the evaporation box.

In one embodiment, the evaporation element is provided with a communication port communicated with the evaporation cavity, and the communication port is positioned on the upper part of the top wall or the side wall of the evaporation element and communicated with the flow guide pipe.

In one embodiment, the condensing gas heat exchange device further comprises a water storage part, the water storage part is arranged in the evaporation cavity, and the water storage part is arranged at a preset interval with the top wall of the evaporation element and is communicated with the communication port.

In one embodiment, the heat exchange body comprises an air blowing element arranged at the bottom of the heat exchange body, the condensing gas heat exchange device further comprises a connecting pipe, one end of the connecting pipe is communicated with an air outlet of the air blowing element, and the other end of the connecting pipe is communicated with the evaporation cavity.

In one embodiment, the top wall or the upper part of the side wall of the evaporation element is provided with an air inlet communicated with the evaporation cavity, and the other end of the connecting pipe is communicated with the air inlet.

In one embodiment, the connecting tube includes a bent portion, and a top end of the bent portion is located above the evaporation element.

In one embodiment, the condensing gas heat exchange device comprises a water inlet pipe, a water outlet pipe, a bypass pipeline and a regulating part for regulating the flow of the bypass pipeline, wherein the water inlet pipe is used for communicating a water source with the condenser, the water outlet pipe is used for communicating the condenser with a water using end, the water outlet pipe penetrates through the flue gas channel, and the bypass pipeline is used for communicating the water inlet pipe with the water outlet pipe.

In one embodiment, the water outlet pipe comprises a first pipe section, a second pipe section and a third pipe section, the second pipe section is used for communicating the first pipe section with the third pipe section, the first pipe section is used for communicating the condenser with the second pipe section, and the second pipe section is arranged in the flue gas channel in a penetrating manner; the bypass pipeline is used for communicating the first pipe section with the water inlet pipe; or the bypass pipeline is used for communicating the third pipe section with the water inlet pipe.

In one embodiment, the condensing gas heat exchange device further comprises a water level detection element, the water level detection element is arranged in the evaporation cavity, and the water level detection element is electrically connected with the adjusting part; and/or the condensing gas heat exchange device (10) further comprises a temperature detection element, the temperature detection element is arranged in the evaporation cavity (311), and the temperature detection element is electrically connected with the adjusting piece (840).

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a condensing gas heat exchange device according to an embodiment;

FIG. 2 is a schematic structural diagram of a condensing gas heat exchange device according to another embodiment;

FIG. 3 is a schematic structural diagram of a condensing box of the condensing gas heat exchange device;

FIG. 4 is a schematic structural diagram of an embodiment of an evaporation element of the condensing gas heat exchanger;

FIG. 5 is a schematic structural diagram of another embodiment of an evaporation element of the condensing gas heat exchanger;

FIG. 6 is a schematic structural diagram of a condensing gas heat exchange device according to yet another embodiment;

FIG. 7 is a schematic structural diagram of a condensing gas heat exchanger according to still another embodiment;

fig. 8 is a schematic structural diagram of a condensing gas heat exchange device according to still another embodiment.

Reference numerals:

10. condensing gas heat exchange equipment; 100. a heat exchange body; 110. a burner; 120. a heat exchanger; 121. heat exchange fins; 130. a combustion chamber; 131. a combustion chamber; 200. a condensing assembly; 210. a condensing box; 211. a mounting cavity; 212. a water outlet; 213. a smoke outlet; 214. a smoke inlet; 220. a condenser; 310. an evaporation element; 311. an evaporation chamber; 312. a communication port; 313. an air inlet; 320. a flow guide pipe; 400. a blocking member; 410. an arc-shaped plate; 500. a water storage member; 600. a blower element; 700. a connecting pipe; 710. a bending section; 810. a water inlet pipe; 820. a water outlet pipe; 821. a first tube section; 822. a second tube section; 823. a third tube section; 830. a bypass line; 840. an adjusting member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In one embodiment, a condensing gas heat exchanger 10 is provided to heat a heat exchange medium such as water.

As shown in fig. 1 and 2, in particular, the condensing gas heat exchanger 10 includes a heat exchanger body 100, a condensing assembly 200, an evaporating element 310, and a duct 320 having a predetermined inner diameter.

Wherein, the heat exchange body 100 is provided with a flue gas channel, and the high-temperature flue gas can smoothly circulate along the flue gas channel.

Optionally, the heat exchange body 100 comprises a burner 110, a heat exchanger 120, and a combustion chamber 130 located between the heat exchanger 120 and the burner 110. The combustor 110 is arranged below the heat exchanger 120, the combustion chamber 130 is provided with a combustion chamber 131, the heat exchanger 120 is provided with a heat exchange chamber, and the combustion chamber 131 is communicated with the heat exchange chamber to form a flue gas channel.

Specifically, the mixture of combustible gas and air is combusted in the combustion chamber 131 to generate high-temperature flue gas, and the high-temperature flue gas flows upwards into the heat exchange chamber to exchange heat with the heat exchange assembly, so that heat exchange media such as water are heated.

It should be noted that the heat exchange assembly may be in the form of an existing heat exchange fin and heat exchange tube.

The condensing assembly 200 includes a condensing box 210 and a condenser 220.

Specifically, the condensing assembly 200 is disposed at a side of the heat exchange body 100.

The condensing box 210 has a mounting cavity 211, a water outlet 212, a smoke outlet 213, and a smoke inlet 214 communicated with the smoke channel. The drain port 212, the smoke discharge port 213, and the smoke inlet 214 are all communicated with the mounting cavity 211.

Optionally, the condensation box 210 is disposed at one side of the heat exchange body 100, and a smoke inlet 214 is disposed on a side wall of the condensation box 210.

Specifically, the condensation box 210 is disposed on the right side of the heat exchange body 100, and the left side wall of the condensation box 210 is provided with a smoke inlet 214, so as to be conveniently communicated with the smoke channel of the heat exchange body 100.

Optionally, a smoke exhaust 213 is provided on the top wall of the condensation box 210. The bottom wall of the condensation box 210 is provided with a drain port 212.

The condenser 220 is installed in the installation cavity 211 by screwing or clamping, and the condenser 220 and the water outlet 212 are arranged at intervals, so that the normal operation of the condenser 220 is not affected by the discharge of the condensed water.

The condenser 220 may be an existing condensing element capable of exchanging heat with the high-temperature flue gas.

Optionally, the condenser 220 is disposed on a left side wall of the installation cavity 211, the water outlet 212 is disposed on a right side wall of the installation cavity 211, high-temperature flue gas flowing out of the heat exchange cavity enters the installation cavity 211 through the smoke inlet 214 and performs secondary heat exchange with the condenser 220, and the high-temperature flue gas after the secondary heat exchange is completed is discharged through the smoke outlet 213. The condensed water produced in the condenser 220 flows out through the drain port 212.

The evaporation element 310 may be made of a high temperature resistant and corrosion resistant metal material. The evaporation element 310 is provided with an evaporation cavity 311, and the evaporation element 310 is fitted in thermal contact with the heat exchange body 100. Thus, the heat radiated to the outside by the high-temperature flue gas can be transferred to the evaporation cavity 311 through the side wall of the heat exchange body 100.

As shown in fig. 5, the evaporation element 310 may be in the form of an evaporation tube, for example, the evaporation tube may be welded or the like around the outer sidewall of the heat exchanger 120, and the evaporation tube may also be welded or the like around the outer sidewall of the combustion chamber 130; the evaporating pipe can also be welded and the like and simultaneously surrounds the outer side wall of the heat exchanger 120, the outer side wall of the combustion chamber 130 and the outer side wall of the combustor 110, and only the requirement that the heat radiated by the high-temperature flue gas can be absorbed so as to heat the condensed water in the evaporating cavity 311 and evaporate the condensed water into steam is met.

As shown in fig. 4, the evaporation element 310 may alternatively be in the form of an evaporation tank.

Specifically, the evaporation tank is sleeved on the outer side wall of the combustion chamber 130 formed between the burner 110 and the heat exchanger 120, and an evaporation cavity 311 is arranged in the evaporation tank (at this time, the evaporation tank and the combustion chamber 130 can be integrally formed), so that the condensed water in the evaporation cavity 311 can be heated by the heat radiated from the high-temperature flue gas in the combustion cavity 131, and the condensed water is evaporated into water vapor. Of course, the evaporation box can also be sleeved outside the heat exchanger 120 and spaced from the outer side wall of the heat exchanger 120 to form the evaporation cavity 311.

More specifically, the evaporation tank may be located between the burner 110 and the heat exchange fins 121 of the heat exchanger 120 and sleeved on the outer side wall of the combustion chamber 130.

In addition, the evaporation box can also be sleeved on the outer side of the combustion chamber and the outer side of the heat exchanger 120 at the same time and arranged at intervals with the outer side wall of the combustion chamber and the outer side wall of the heat exchanger 120 to form an evaporation cavity 311. Alternatively, the evaporation box can also be sleeved outside the heat exchanger 120, outside the combustion chamber 130 and outside the burner 110 at the same time to form the evaporation cavity 311.

It should be noted that the evaporation cavity 311 is a closed cavity and is only communicated with the water discharge opening 212, so that condensed water can enter the installation cavity 211 through the water discharge opening 212 after being evaporated into water vapor and is finally discharged from the smoke discharge opening 214 together with the high-temperature smoke.

The draft tube 320 is used for communicating the drain port 212 with the evaporation cavity 311, so that the condensed water discharged from the drain port 212 enters the evaporation cavity 311 through the draft tube 320. The duct 320 can simultaneously supply steam and condensed water. So, the comdenstion water that gets into in the evaporation chamber 311 absorbs and evaporates into vapor behind the heat that comes from heat transfer body 100, and vapor gets into in the installation cavity 211 and finally discharges from exhaust port 213 with high temperature flue gas together through honeycomb duct 320 from evaporation chamber 311 to realize not having the comdenstion water and discharging, need not reserve the comdenstion water and discharge the pipeline, be convenient for on-the-spot installation and the construction to condensing gas heat transfer device 10, help condensing gas heat transfer device 10's popularization and application. In addition, the condensed water evaporates and absorbs heat in the evaporation cavity 311, so that the outer side wall of the heat exchange body 100 can be cooled, and the damage to the electric elements caused by overhigh temperature can be avoided. Meanwhile, the condensed water absorbs heat and becomes high-temperature steam, and the temperature of the high-temperature flue gas after the secondary heat exchange with the condenser 220 is reduced (the temperature of the high-temperature flue gas after the secondary heat exchange with the condenser 220 is generally below 90 ℃), so that the steam and the high-temperature flue gas are discharged from the smoke outlet 213 together, and the smoke exhaust temperature can be increased.

Compare traditional mode of integrating the comdenstion water collecting vessel in condensing gas heat transfer device 10, condensing gas heat transfer device 10 of above-mentioned embodiment is discharged along with the high temperature flue gas after evaporating the comdenstion water into gas, can not increase condensing gas heat transfer device 10's volume, follow-up also need not frequently clear up the comdenstion water that gathers, and convenient to use has improved user experience and has felt.

In addition, the condensing gas heat exchanger 10 of the above embodiment conveys the condensed water in the installation cavity 211 to the evaporation cavity 311 through the flow guide tube 320 to evaporate into water vapor, and then conveys the water vapor to the installation cavity 211 through the flow guide tube 320, so that the water vapor can be discharged from the smoke outlet 213 together with the high-temperature flue gas, and the flow guide tube 320 can guide both the condensed water and the water vapor, thereby greatly simplifying the pipeline structure, avoiding the problems of complicated structure and large volume caused by excessive pipelines, facilitating the field construction, and reducing the occupied installation space.

It should be noted that, the guiding tube 320 with the preset inner diameter means that the inner diameter of the guiding tube 320 can be flexibly designed or adjusted according to actual use requirements, and only the guiding tube 320 needs to be capable of conveying condensed water and steam, and the conveying of the condensed water and the conveying of the steam are not interfered with each other.

In order to make the condensed water in the installation cavity 211 smoothly enter the evaporation cavity 311 through the draft tube 320.

As shown in fig. 1, 7 and 8, the evaporation element 310 is optionally disposed at an oblique lower position of the water outlet 212, so that the guide pipe 320 is obliquely disposed relative to the heat exchange body 100, and the condensed water in the installation cavity 211 can smoothly enter the evaporation cavity 311 through the guide pipe 320 to evaporate under the action of gravity. In addition, the inclined arrangement of the draft tube 320 also enables the condensed water to flow along the extending direction of the draft tube 320 against the inner wall of the draft tube 320 under the action of gravity, so that the draft tube 320 has enough space for the water vapor to flow, and further the transportation of the condensed water and the transportation of the water vapor are not interfered with each other.

In addition, the operation of the condenser 220 is prevented from being affected by water vapor entering the installation cavity 211.

As shown in fig. 3, the condensing gas heat exchanger 10 further includes a blocking member 400.

Specifically, the blocking member 400 is disposed in the installation cavity 211 between the condenser 220 and the drain hole 212. Therefore, the water vapor enters the installation cavity 211 through the water outlet 212, and under the blocking effect of the blocking piece 400, the normal work of the condenser 220 influenced by the contact of the water vapor and the condenser 220 can be avoided, so that the interference caused by the influence of the water vapor on the secondary heat exchange of the high-temperature flue gas and the condenser 220 is avoided, and the heat exchange efficiency is ensured.

The blocking member 400 may have a plate shape.

Optionally, the barrier 400 is a barrier plate. Wherein, the bottom of blocking plate and the diapire of installation cavity 211 adopt spiro union or integrated into one piece's mode to be connected, and the top of blocking plate sets up with the roof interval of installation cavity 211. And, the blocking plate is located between the condenser 220 and the drain port 212. In this way, the water vapor entering from the water outlet 212 will not or as little as possible diffuse toward the condenser 220 under the blocking of the blocking plate, and the operation of the condenser 220 is not affected. Moreover, the baffle plate can guide the water vapor to flow upwards and flow out from the smoke outlet 213 formed on the top wall.

In addition, the blocking plate is required to be disposed so as not to interfere with or affect the discharge of the condensate from the drain port 212.

As shown in fig. 3, the blocking plate is optionally an arcuate plate 410.

Specifically, the arcuate plate 410 is disposed circumferentially around the drain opening 212. In this way, the water vapor entering the installation cavity 211 from the water outlet 212 can be blocked by the arc-shaped plate 410, and the water vapor is prevented from contacting the condenser 220. And, both sides of the arc plate 410 and the inner sidewall of the installation cavity 211 are spaced. Thus, condensed water can enter the water outlet 212 from the gap between the arc plate 410 and the inner side wall of the installation cavity 211 and be discharged, and the condensed water is prevented from accumulating in the installation cavity 211.

In addition, the setting of barrier plate still needs to satisfy and can not cause interference or influence to the emission of condensate water and high temperature flue gas.

Optionally, the top wall of the condensation box 210 is provided with a smoke exhaust 213. And, the projection of the blocking plate on the top wall of the condensation box 210 falls at least partially within the contour of the smoke exhaust port 213. Therefore, the upper part of the cavity between the blocking plate and the condenser 220 is communicated with the smoke outlet 213, so that high-temperature smoke can be smoothly discharged from the smoke outlet 213 after exchanging heat with the condenser 220; the upper part of the cavity between the blocking plate and the water outlet 212 is also communicated with the smoke outlet 213, so that the water vapor entering through the water outlet 212 can be smoothly discharged from the smoke outlet 213.

In addition, the water vapor in the evaporation cavity 311 can be discharged smoothly without remaining in the evaporation cavity 311.

As shown in fig. 4 and 5, the evaporation element 310 may be provided with a communication port 312 communicating with the evaporation chamber 311. The communication opening 312 is located at the upper portion of the sidewall of the evaporation element 310, and the communication opening 312 is communicated with the draft tube 320. Therefore, the condensed water is evaporated into steam in the evaporation cavity 311, the steam with higher temperature enters the draft tube 320 from the communication port 312 in the rising process and finally passes through the installation cavity 211 and then is discharged together with high-temperature flue gas from the smoke outlet 213, and the steam is prevented from remaining in the evaporation cavity 311.

Of course, in other embodiments, the communication port 312 may be opened at other suitable positions, for example, the communication port may be opened on the top wall of the evaporation element 310, as long as the water vapor can be smoothly discharged from the communication port 312.

Wherein, the upper portion of the sidewall refers to the portion of the circumferential sidewall of the evaporation element 310 near the top wall.

When the evaporation element 310 is an evaporation tube, the top wall of the evaporation element 310 refers to the highest position of the evaporation tube; when the evaporation element 310 is an evaporation tank, the top wall of the evaporation element 310 refers to the topmost end of the evaporation tank.

In addition, since the temperature of the heat exchange body 100 in the upper region is high, the generation of local high temperature is avoided.

As shown in fig. 4, optionally, the condensing gas heat exchanger 10 further includes a water storage member 500.

Wherein, the water storage member 500 may be a water storage tray, a water storage plate, or the like.

Specifically, the water storage member 500 is disposed in the evaporation cavity 311 by means of screw connection, clamping connection, or the like. And, the water storage member 500 is spaced apart from the top wall of the evaporation element 310 at a predetermined interval and communicates with the communication port 312. Thus, the condensed water flowing down from the communication port 312 firstly falls on the water storage member 500 close to the top wall, and the region close to the top wall is cooled by utilizing the evaporation heat absorption of the condensed water, so that the generation of local high temperature is avoided. Wherein, predetermine the interval and can carry out nimble design or adjustment according to the in-service use condition, only need satisfy the water evaporation on the retaining member 500 can avoid producing local high temperature can. In addition, the water storage member 500 may be further provided to be inclined to guide the condensed water to prevent the condensed water from accumulating.

Of course, alternatively, the water storage members 500 may be symmetrically disposed at intervals, and each water storage member 500 is provided with a plurality of water falling holes.

Of course, the water storage amount of the water storage member 500 can be flexibly designed or adjusted according to the actual use requirement, so as to avoid excessive condensation water from accumulating on the water storage member 500.

In addition, the quantity of retaining piece 500 can also carry out nimble regulation according to the in-service use needs, for example can be at least two, and at least two retaining pieces 500 set up along the direction of height interval to make each retaining piece 500 be the gradient and carry out the retaining, and then can be reasonable evaporate the heat absorption to each region, avoid producing local high temperature.

In addition, at least two water storage members 500 may be alternately disposed at intervals so that condensed water can flow from the upper water storage member 500 to the lower water storage member 500.

In order to accelerate the evaporation and drainage of the condensed water in the evaporation cavity 311.

As shown in fig. 6, the heat exchange body 100 may optionally include a blowing member 600 disposed at the bottom of the heat exchange body 100.

Specifically, the blowing element 600 is disposed below the burner 110, so that air can be sent into the combustion chamber 131 by the blowing element 600 to be combusted to generate high-temperature flue gas, and the high-temperature flue gas can be promoted to flow into the heat exchange chamber and the installation chamber 211 for heat exchange.

The blowing element 600 may be a blower or the like.

As shown in fig. 6, further, the condensing gas heat exchanger 10 further includes a connection pipe 700. One end of the connection pipe 700 is communicated with the air outlet of the blowing element 600, and the other end of the connection pipe 700 is communicated with the evaporation cavity 311. In this way, the air generated by the blowing element 600 is supplied into the evaporation cavity 311 by the connecting pipe 700, which not only facilitates the rapid evaporation of the condensed water and improves the evaporation effect, but also promotes the flow of the water vapor, so that the water vapor can more rapidly enter the installation cavity 211 through the guide pipe 320 and finally be discharged from the smoke outlet 213.

Of course, it is also required to ensure that the condensed water in the evaporation cavity 311 does not flow back to the blower element 600.

As shown in fig. 6, alternatively, the upper portion of the top wall or the sidewall of the evaporation element 310 is provided with an air inlet 313 communicating with the evaporation cavity 311, and the other end of the connection pipe 700 communicates with the air inlet 313. In this manner, the air inlet 313 is provided on the top wall or the upper portion of the sidewall of the evaporation element 310, thereby preventing the condensed water in the evaporation cavity 311 from flowing backward to the blower element 600 through the air inlet 313.

As shown in fig. 6, the connection pipe 700 optionally includes a bent part 710, and a top end of the bent part 710 is located above the evaporation element 310. In this way, by installing the top end of the bent portion 710 above the evaporation element 310, the condensed water in the evaporation cavity 311 is prevented from flowing backward to the blowing element 600 through the connection pipe 700. The bending portion 710 may be an inverted U-shaped contour structure, and only needs to be satisfied to prevent the condensed water from flowing backward.

Of course, in other embodiments, it is possible to simultaneously open the air inlet 313 on the top wall of the evaporation element 310 while providing the bent portion 710 on the connection pipe 700.

In the working process of the condenser 220, when the amount of the cold water introduced into the condenser 220 is large, a large amount of condensed water is generated, and when the amount of the cold water introduced into the condenser 220 is small, a small amount of condensed water is generated, so as to ensure that the generated condensed water is not too much or too little.

As shown in fig. 7 and 8, optionally, the condensing gas heat exchanger 10 includes a water inlet tube 810, a water outlet tube 820, a bypass line 830, and a regulating member 840 for regulating a flow rate of the bypass line 830.

Wherein, the adjusting member 840 may be disposed on the bypass line 830. The adjuster 840 may be an element having an opening degree adjusting function, such as a flow rate control valve.

Wherein, the inlet tube 810 is used for intercommunication water source and condenser 220 to make the water that the water source flows out can flow in to condenser 220 through inlet tube 810, utilize the secondary heat transfer of condenser 220 and high temperature flue gas and preheat water, help improving heat exchange efficiency.

The water outlet pipe 820 is used for communicating the condenser 220 and the water using end, and the water outlet pipe 820 penetrates through the flue gas channel, so that the water preheated in the condenser 220 can exchange heat with the high-temperature flue gas in the flue gas channel to be further heated, and the heated water finally flows out of the water using end to be used.

The bypass line 830 is used to communicate the water inlet tube 810 with the water outlet tube 820. Therefore, the flow of the bypass pipeline 830 is adjusted by the adjusting part 840, so that the amount of water entering the condenser 220 and the water outlet pipe 820 is adjusted, the amount of condensed water generated at the condenser 220 can be adjusted, and the micro-balance between the heat dissipation loss and the effective condensation efficiency can be adjusted.

Specifically, when the amount of condensed water is too much, the condensed water is accumulated in the evaporation cavity 311, the evaporation is not timely performed or the flow of the water vapor is disturbed, and the amount of water entering the condenser 220 and the water outlet pipe 820 can be reduced through the adjusting part 840, so that the amount of condensed water is reduced. When the condensed water is generated too little, the temperature in the evaporation cavity 311 is raised, and the overheating problem is generated, and the amount of water entering the condenser 220 and the water outlet pipe 820 is increased through the adjusting piece 840, so that the generation of the condensed water is increased.

The communication form of the bypass pipeline 830 and the water outlet pipe 820 can be flexibly designed or adjusted according to actual installation scenes or use requirements.

Optionally, the outlet pipe 820 comprises a first pipe segment 821, a second pipe segment 822 and a third pipe segment 823. The second pipe segment 822 is used for communicating a first pipe segment 821 and a third pipe segment 823, the first pipe segment 821 is used for communicating the condenser 220 and the second pipe segment 822, the second pipe segment 822 is arranged in the flue gas channel in a penetrating mode to exchange heat with high-temperature flue gas, and the third pipe segment 823 is used for connecting a water end and the second pipe segment 822.

The second pipe segment 822 may be disposed in a heat exchange cavity of the heat exchanger 120 in a penetrating manner, and heat exchange fins may be further sleeved on an outer side wall of the second pipe segment 822 to improve heat exchange efficiency.

As shown in FIG. 7, in one embodiment, a bypass line 830 is used to communicate first pipe segment 821 with inlet pipe 810. Thus, when the flow rate of the bypass line 830 is decreased by the adjusting member 840, the amount of water flowing from the water inlet tube 810 into the first pipe segment 821 is decreased, and the amount of water flowing from the water inlet tube 810 into the condenser 220 is increased, thereby increasing the amount of condensed water; when the flow rate of the bypass line 830 is increased by the adjusting member 840, more water directly flows into the first pipe segment 821 from the water inlet pipe 810, and less water flows into the condenser 220 from the water inlet pipe 810, thereby reducing the amount of condensed water. In addition, the bypass pipeline 830 communicates the first pipe segment 821 with the water inlet pipe 810, the length of the bypass pipeline 830 is short, the pipeline structure can be greatly simplified, the problems of complex structure and large size caused by excessive pipelines are solved, the field construction is convenient, and the occupied installation space is smaller.

As shown in FIG. 8, in one embodiment, a bypass line 830 is used to communicate the third segment 823 with the inlet tube 810. Thus, when the flow rate of the bypass line 830 is decreased by the adjusting member 840, the water flowing from the water inlet tube 810 into the third tube segment 823 directly decreases, and the water flowing from the water inlet tube 810 into the condenser 220 increases, thereby increasing the amount of condensed water; when the flow rate of the bypass line 830 is increased by the adjusting member 840, the amount of water flowing from the water inlet tube 810 into the third tube segment 823 directly increases, and the amount of water flowing from the water inlet tube 810 into the condenser 220 decreases, thereby reducing the amount of condensed water.

In order to ensure that the flow through bypass line 830 is regulated more accurately by regulator 840.

Optionally, the condensing gas heat exchanger 10 further includes a temperature detecting element (not shown). Wherein, the temperature detecting element is arranged on the inner side wall of the evaporation cavity 311 by plugging or clamping and the like. The temperature detecting element is electrically connected to the adjusting member 840. In this way, the temperature detection element is used to detect the temperature in the evaporation cavity 311, so that the evaporation condition of the condensed water can be obtained, and reference and basis can be provided for the adjustment of the adjusting member 840.

Specifically, when the temperature detecting element detects that the temperature in the evaporation cavity 311 is too high, the adjusting part 840 is made to control the flow rate of the bypass pipeline 830 to be smaller, and the generation amount of the condensed water is increased; when the temperature detecting element detects that the temperature in the evaporation cavity 311 is too low, the adjusting part 840 controls the flow rate of the bypass pipeline 830 to be increased, and the generation amount of the condensed water is reduced.

The temperature detecting element may be a temperature sensor or other existing element capable of detecting the temperature in the evaporation cavity 311.

Optionally, the condensing gas heat exchanger 10 further includes a water level detecting element (not shown). Wherein, the water level detecting element is disposed on the bottom wall of the evaporation cavity 311 by plugging or clipping. And, the water level detecting element is electrically connected with the adjusting part 840. In this way, the water level in the evaporation cavity 311 is detected by the water level detection element, so that the evaporation condition of the condensed water can be obtained, and reference and basis can be provided for the adjustment of the adjusting member 840.

Specifically, when the water level detecting element detects that the water level in the evaporation cavity 311 is too high, the adjusting part 840 is made to control the flow rate of the bypass pipeline 830 to be increased, so as to reduce the amount of the generated condensed water; when the water level detecting element detects that the water level in the evaporation cavity 311 is too low, the flow rate of the bypass line 830 controlled by the adjusting member 840 is reduced, and the amount of the generated condensed water is increased.

The water level detecting element may be a water level sensor or other existing element capable of detecting the temperature in the evaporation cavity 311.

In addition, in the in-service use in-process, can also utilize control element such as singlechip to be connected between temperature detecting element and the regulating part 840, also can utilize control element such as singlechip to be connected between water level detecting element and the regulating part 840 to make the regulation more intelligent.

The electric connection can be realized by adopting a wired connection mode such as a data line and the like, and can also be realized by adopting a wireless connection mode such as Bluetooth transmission and the like.

The condensing gas heat exchanger 10 may be a condensing gas water heater or the like.

Taking a condensing gas water heater using methane as a gas source as an example, the theoretical maximum thermal efficiency of a non-condensing gas water heater is 100% (according to a low calorific value), the theoretical maximum thermal efficiency of the condensing gas water heater is 110.9% (according to a low calorific value), the thermal efficiency released after the gas is combusted and the water vapor is completely condensed is 10.9%, and the heat loss influencing the thermal efficiency of the condensing gas water heater is mainly as follows: the chemical loss generated by incomplete combustion is less than 0.2%, the smoke discharge loss is controlled by the temperature of the high-temperature flue gas, the condensation efficiency does not reach 10.9% of the theory, and the chemical loss can be controlled by the condenser 220. The one-level energy efficiency of condensing gas heater requires more than 96%, through structural design, controls the loss of discharging fume at 3%, condensation effective efficiency 5%, and the heat dissipation is 5% unanimous with condensation effective efficiency, and the thermal efficiency is: the energy-saving condensation type gas water heater has the advantages that the energy-saving condensation type gas water heater is 100+5-5-3-0.2 ═ 96.8%, the requirement of primary energy efficiency can be met, the heat dissipation loss is consistent with the effective efficiency of condensation, and the condensed water can be effectively discharged, so that the function of no condensed water discharge of the condensation type gas water heater is realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. Condensing gas heat transfer device, its characterized in that includes:

the heat exchange device comprises a heat exchange body (100), wherein the heat exchange body (100) is provided with a flue gas channel for high-temperature flue gas to flow;

the condensation component (200), the condensation component (200) comprises a condensation box (210) and a condenser (220), the condensation box (210) is provided with an installation cavity (211), a water outlet (212), a smoke outlet (213) and a smoke inlet (214) communicated with the smoke channel, the water outlet (212), the smoke outlet (213) and the smoke inlet (214) are all communicated with the installation cavity (211), and the condenser (220) is arranged in the installation cavity (211) and is arranged at intervals with the water outlet (212);

the evaporation element (310) is provided with an evaporation cavity (311), and the evaporation element (310) is matched with the heat exchange body (100) in a thermal contact manner;

a flow conduit (320) having a predetermined inner diameter, said flow conduit (320) being adapted to communicate said drain (212) with said evaporation chamber (311), and said flow conduit (320) being adapted to simultaneously convey water vapor and condensed water.

2. The condensing gas heat exchange device according to claim 1, wherein the heat exchange body (100) comprises a heat exchanger (120), a burner (110), and a combustion chamber (130) between the heat exchanger (120) and the burner (110); the evaporation element (310) comprises an evaporation pipe surrounding the outer side wall of the combustion chamber (130), and the evaporation pipe is provided with the evaporation cavity (311); or the evaporation element (310) comprises an evaporation box which is sleeved between the heat exchanger (120) and the combustor (110) to form the outer side wall of the combustion chamber (130), and the evaporation box is internally provided with the evaporation cavity (311).

3. The condensing gas heat exchanger according to claim 1, wherein the evaporation element (310) is provided with a communication port (312) communicated with the evaporation chamber (311), and the communication port (312) is located at the upper part of the top wall or the side wall of the evaporation element (310) and communicated with the draft tube (320).

4. The condensing gas heat exchange device according to claim 3, wherein the condensing gas heat exchange device (10) further comprises a water storage member (500), the water storage member (500) is disposed in the evaporation cavity (311), and the water storage member (500) is spaced apart from the top wall of the evaporation element (310) by a preset distance and is communicated with the communication port (312).

5. The condensing gas heat exchanger according to any one of claims 1 to 4, wherein the heat exchanger body (100) comprises a blowing element (600) disposed at the bottom of the heat exchanger body (100), the condensing gas heat exchanger (10) further comprises a connecting pipe (700), one end of the connecting pipe (700) is communicated with an air outlet of the blowing element (600), and the other end of the connecting pipe (700) is communicated with the evaporation cavity (311).

6. The condensing gas heat exchanger according to claim 5, wherein the top wall or the upper part of the side wall of the evaporation element (310) is provided with an air inlet (313) communicated with the evaporation cavity (311), and the other end of the connecting pipe (700) is communicated with the air inlet (313).

7. The condensing gas heat exchanger according to claim 5, wherein the connecting pipe (700) comprises a bent part (710), and the top end of the bent part (710) is located above the evaporation element (310).

8. The condensing gas heat exchange device according to any one of claims 1 to 4, wherein the condensing gas heat exchange device (10) comprises a water inlet pipe (810), a water outlet pipe (820), a bypass pipeline (830) and a regulating member (840) for regulating the flow of the bypass pipeline (830), the water inlet pipe (810) is used for communicating a water source with the condenser (220), the water outlet pipe (820) is used for communicating the condenser (220) with a water end, the water outlet pipe (820) passes through the flue gas channel, and the bypass pipeline (830) is used for communicating the water inlet pipe (810) with the water outlet pipe (820).

9. The condensing gas heat exchange device according to claim 8, wherein the water outlet pipe (820) comprises a first pipe section (821), a second pipe section (822) and a third pipe section (823), the second pipe section (822) is used for communicating the first pipe section (821) with the third pipe section (823), the first pipe section (821) is used for communicating the condenser (220) with the second pipe section (822), and the second pipe section (822) is arranged in the flue gas channel in a penetrating manner; the bypass pipeline (830) is used for communicating the first pipe section (821) with the water inlet pipe (810); or the bypass pipeline (830) is used for communicating the third pipe section (823) with the water inlet pipe (810).

10. The condensing gas heat exchanger according to claim 8, wherein the condensing gas heat exchanger (10) further comprises a water level detecting element, the water level detecting element is disposed in the evaporation cavity (311), and the water level detecting element is electrically connected to the adjusting member (840); and/or the condensing gas heat exchange device (10) further comprises a temperature detection element, the temperature detection element is arranged in the evaporation cavity (311), and the temperature detection element is electrically connected with the adjusting piece (840).

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