CN216048373U - Condensing heat exchanger and condensing device - Google Patents

Abstract

The utility model relates to a condensing heat exchanger and a condensing device, wherein the bottom end of a separator is arranged at an interval with the bottom wall of a cavity, the ground height of a smoke inlet is higher than that of the bottom end of the separator, even if a condensate water outlet is blocked along with the rise of the liquid level of condensate water, when the liquid level of the condensate water rises to be in contact with the bottom end of the separator, the separation of a first sub-cavity and a second sub-cavity can be realized, so that the first sub-cavity communicated with the smoke inlet is in a sealing state, a water plug sealing surface is formed on the flow path of smoke, at the moment, the flow resistance of the smoke is greatly increased, an identification module on a main control panel can timely and effectively identify that the condensate water outlet is blocked, the gas supply can be timely and effectively closed, the condensate water is prevented from being generated, and the liquid level of the condensate water is not raised any more, and then can avoid taking place to flow backward because of the liquid level of comdenstion water is too high, guarantee that fan and main heat transfer device can not receive the damage.

Description

Condensing heat exchanger and condensing device

Technical Field

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

Background

Condensing heat exchangers such as condensing water heaters can reuse flue gas flowing out of the main heat exchange device, heat exchange efficiency is improved, and the condensing heat exchangers are widely applied to daily life. Specifically, flue gas flowing out of the main heat exchange device enters the condensing device through a smoke inlet of the condensing device and carries out secondary heat exchange with the cold water pipe, and finally is discharged to the outside through a smoke outlet of the condensing device. Among traditional condensing equipment, can produce the comdenstion water and gather in condensing equipment's bottom after flue gas and cold water pipe take place the heat transfer, when the comdenstion water discharge port takes place to block up, blocks up and close before the gas supply at the identification module discernment, and the comdenstion water is probably through advancing in the mouth flows backward to fan and main heat transfer device to damage condensing heat exchanger.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a condensing device, which can effectively and timely identify the blockage of the condensed water outlet, and avoid the backflow of the condensed water.

The second technical problem to be solved by the present invention is to provide a condensing heat exchanger, which can effectively and timely identify the blockage of the condensed water discharge port, and avoid the backflow of the condensed water.

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

a condensing unit comprising:

the condensation box is provided with a cavity, a smoke inlet communicated with the cavity and a smoke outlet communicated with the cavity;

the separator, the separator be used for with the cavity divide for with advance the first minute chamber of smoke inlet intercommunication and with the second minute chamber of smoke outlet intercommunication, the bottom of separator with the diapire interval of cavity sets up, makes first minute chamber with the second minute chamber is in the bottom of cavity communicates each other, and, advance the height to ground of smoke inlet is higher than the height to ground of the bottom of separator.

Compared with the background art, the mounting structure of the utility model has the following beneficial effects: the flue gas can produce the comdenstion water with first pipeline section and second pipeline section contact and when carrying out the heat transfer, and the comdenstion water drips to the bottom of cavity under the effect of gravity to gather in the cavity. Because the bottom end of the separator is arranged at an interval with the bottom wall of the cavity, and the ground height of the smoke inlet is higher than that of the bottom end of the separator, along with the rising of the condensate water liquid level, even if the condensate water discharge port is blocked, when the liquid level of the condensate water rises to be contacted with the bottom end of the separator, the first sub-cavity and the second sub-cavity can be separated, so that the first sub-cavity communicated with the smoke inlet is in a sealing state, a water blocking sealing surface is formed on the smoke flow path, at the moment, the flow resistance of smoke can be greatly increased, the blockage of the condensate water discharge port can be timely and effectively identified by the identification module on the main control board, the gas supply can be timely and effectively closed, the condensate water is prevented from being generated, the liquid level of the condensate water does not rise any more, and the backflow caused by the overhigh liquid level of the condensate water can be further avoided, the fan and the main heat exchange device are prevented from being damaged.

In one of them embodiment, the separator includes first baffle and the second baffle that is the contained angle setting, first baffle with second baffle interconnect, the side of first baffle and the side of second baffle all with the lateral wall sealing connection of cavity, the second baffle keep away from the one end of first baffle with the diapire interval sets up, just the height to ground of advancing the mouth is higher than the height to ground of the one end that the first baffle was kept away from to the second baffle.

In one embodiment, the side edge of the first partition plate and/or the side edge of the second partition plate is/are provided with connecting flanges which are used for being attached to the inner side wall of the cavity.

In one embodiment, the distance between the end of the second partition board far away from the first partition board and the bottom wall is adjustable.

In one embodiment, the smoke inlet is arranged on the side wall of the condensation box, the smoke outlet is arranged on the top wall of the condensation box, the first partition plate is arranged above the smoke inlet and below the smoke outlet, and the second partition plate is perpendicular to the first partition plate and extends towards the lower part of the first partition plate.

In one embodiment, the condensing device further comprises a liquid level detection element and an alarm element, the liquid level detection element is arranged in the cavity, and the liquid level detection element is electrically connected with the alarm element.

The second technical problem is solved by the following technical solutions:

the utility model provides a condensing heat exchanger, includes the cold water pipe and condensing equipment, the cold water pipe is including the first pipeline section and the second pipeline section of intercommunication each other, first pipeline section set up in first subchamber, the second pipeline section set up in the second subchamber.

Compared with the background technology, the condensing heat exchanger has the following beneficial effects: the fan injects flue gas after heat exchange is accomplished in the main heat transfer device into the cavity through advancing the mouth of cigarette, and the cold water pipe is at least partly worn to locate in the cavity to make flue gas and cold water pipe contact and carry out the heat transfer in order to heat water. Because the bottom end of the separator is arranged at an interval with the bottom wall of the cavity, and the ground height of the smoke inlet is higher than that of the bottom end of the separator, along with the rising of the condensate water liquid level, even if the condensate water discharge port is blocked, when the liquid level of the condensate water rises to be contacted with the bottom end of the separator, the first sub-cavity and the second sub-cavity can be separated, so that the first sub-cavity communicated with the smoke inlet is in a sealing state, a water blocking sealing surface is formed on the smoke flow path, at the moment, the flow resistance of smoke can be greatly increased, the blockage of the condensate water discharge port can be timely and effectively identified by the identification module on the main control board, the gas supply can be timely and effectively closed, the condensate water is prevented from being generated, the liquid level of the condensate water does not rise any more, and the backflow caused by the overhigh liquid level of the condensate water can be further avoided, the fan and the main heat exchange device are prevented from being damaged.

In one embodiment, the bottom wall is provided with a first mounting hole and a second mounting hole which are arranged at intervals and used for allowing the cold water pipe to pass through, the first mounting hole and the second mounting hole are both communicated with the cavity, the first mounting hole is arranged corresponding to the first sub-cavity, and the second mounting hole is arranged corresponding to the second sub-cavity.

In one embodiment, the first pipe section comprises at least two first branch pipes which are parallel to each other and arranged at intervals, and at least one second branch pipe which is used for communicating two adjacent first branch pipes, and the first branch pipe and the second branch pipe are both arranged in the first branch cavity.

In one embodiment, the second pipe section includes at least two third branch pipes arranged in parallel and at an interval, and at least one fourth branch pipe used for communicating two adjacent third branch pipes, and the third branch pipe and the fourth branch pipe are both arranged in the second sub-cavity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

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 heat exchanger according to one embodiment;

fig. 2 is a schematic structural view of a partition of a condensing unit of the condensing heat exchanger of fig. 1.

Reference numerals:

100. a condenser tank; 110. a cavity; 111. a first sub-chamber; 112. a second sub-cavity; 120. a smoke inlet; 130. a smoke outlet; 140. a bottom wall; 200. a separator; 210. a first separator; 220. a second separator; 230. connecting the flanging; 240. a bottom end; 300. a cold water pipe; 310. a first tube section; 311. a first branch pipe; 312. a second branch pipe; 320. a second tube section; 321. thirdly, pipe distribution; 322. a fourth branch pipe; 400. a fan; 500. and a main heat exchange device.

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 implicitly indicating 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 by those skilled in the art according to specific situations.

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, as shown in FIG. 1, a condensing heat exchanger is provided. Including a cold water pipe 300 and a condensing device. Wherein, cold water pipe 300 is at least partly worn to locate in the condensing equipment to make the flue gas that flows into in the condensing equipment can carry out the heat transfer and preheat water with cold water pipe 300.

As shown in fig. 1, in one embodiment, a condensation device is provided, wherein the condensation device includes a condensation tank 100 and a partition 200, the partition 200 being disposed inside the condensation tank 100.

As shown in fig. 1, the condensation tank 100 is provided with a cavity 110, a smoke inlet 120 communicated with the cavity 110, and a smoke outlet 130 communicated with the cavity 110. So, in fan 400 pours into cavity 110 into through advancing cigarette mouth 120 with the flue gas after the heat transfer is accomplished in the main heat transfer device 500 in, cold water pipe 300 is at least partly worn to locate in cavity 110 to make flue gas and cold water pipe 300 contact and carry out the heat transfer in order to heat water.

As shown in fig. 1, the partition 200 is used to divide the cavity 110 into a first sub-chamber 111 communicating with the smoke inlet 120 and a second sub-chamber 112 communicating with the smoke outlet 130. The bottom end 240 of the partition 200 is spaced apart from the bottom wall 140 of the cavity 110 such that the first subchamber 111 and the second subchamber 112 communicate with each other at the bottom of the cavity 110. Also, the height of the smoke inlet 120 with respect to the ground is higher than that of the bottom end 240 of the partition 200. Therefore, the smoke firstly enters the first sub-cavity 111 from the smoke inlet 120, then enters the second sub-cavity 112 from the bottom of the cavity 110, and finally flows out to the outside through the smoke outlet 130, so that the flow track of the smoke in the cavity 110 is prolonged.

As shown in fig. 1, the cold water pipe 300 includes a first pipe section 310 and a second pipe section 320 that are communicated with each other, the first pipe section 310 is disposed in the first sub-chamber 111, and the second pipe section 320 is disposed in the second sub-chamber 112. So, the flue gas contacts and carries out the heat transfer with first pipeline section 310 when flowing in first subchamber 111, the flue gas contacts and carries out the heat transfer with second pipeline section 320 when flowing in second subchamber 112, thereby the contact time of flue gas with cold water pipe 300 has been prolonged, the area of contact of flue gas with cold water pipe 300 has been increased, make the flue gas abundant contact with cold water pipe 300, effectively improve the reutilization rate of flue gas, the heat exchange efficiency of condensing heat exchanger has been improved, exhaust gas temperature has also been reduced.

Meanwhile, when the flue gas contacts the first pipe section 310 and the second pipe section 320 for heat exchange, condensed water is generated, and the condensed water drops to the bottom of the cavity 110 under the action of gravity, so that the condensed water is accumulated in the cavity 110. Because the bottom 240 of the separating member 200 is spaced from the bottom wall 140 of the cavity 110, and the ground height of the smoke inlet 120 is higher than the ground height of the bottom 240 of the separating member 200, even if the condensate water outlet is blocked along with the rise of the condensate water level, when the condensate water level rises to contact with the bottom 240 of the separating member 200, the first sub-chamber 111 and the second sub-chamber 112 can be separated, and further the first sub-chamber 111 communicated with the smoke inlet 120 is in a sealed state, so that a water blocking sealing surface is formed on the smoke flow path, at this time, the flow resistance of smoke can be greatly increased, which is beneficial for the recognition module on the main control board to timely and effectively recognize that the condensate water outlet is blocked, so as to timely and effectively close the gas supply, avoid the generation of condensate water, so that the condensate water level does not rise any more, and further prevent the occurrence of reverse irrigation due to the overhigh condensate water level, it is ensured that the fan 400 and the main heat exchange device 500 are not damaged.

It should be noted that, the identification module may identify whether the flow path of the flue gas is blocked according to parameters such as the flow speed of the flue gas, so as to identify that the condensate water outlet is blocked. For example, the identification module may be a flow rate sensor for detecting the flow rate of the flue gas at the flue gas inlet 120, and when the flow rate sensor detects that the flow rate of the flue gas is greatly reduced, that is, the flow resistance of the flue gas is greatly increased, it is identified that the flow path of the flue gas is blocked, and then it is identified that the condensate water outlet is blocked. Of course, the identification module can be any one of the existing elements which can timely and effectively identify that the condensate water outlet is blocked when the water blocking sealing surface is formed on the flow path of the flue gas.

Certainly, the condensing heat exchanger further includes components such as a fan 400, a smoke tube, and a main heat exchanger 500, which are not described herein again because they do not belong to the improvement.

The height of the smoke inlet 120 relative to the ground is the height relative to the ground level, that is, the height of the lowest end of the smoke inlet 120 relative to the ground level in the gravity direction. Likewise, the ground height of the bottom end 240 of the partition 200 refers to the height of the bottom end 240 of the partition 200 with respect to the ground plane. The height of the smoke inlet 120 relative to the ground is higher than that of the bottom end 240 of the partition 200, so that when the bottom end 240 of the partition 200 is submerged by the condensed water, the liquid level of the condensed water is also below the lowest end of the smoke inlet 120, and the condensed water is prevented from flowing backwards through the smoke inlet 120.

The partition 200 may be in the form of a partition plate or a partition membrane, and only needs to be able to partition the cavity 110 into the first sub-cavity 111 and the second sub-cavity 112, so that the first sub-cavity 111 and the second sub-cavity 112 are communicated with each other at the bottom of the cavity 110, and the bottom end 240 of the partition 200 close to the bottom wall 140 is spaced from the bottom wall 140.

As shown in fig. 1 and 2, the partition 200 may optionally include a first partition 210 and a second partition 220 disposed at an included angle. The first barrier 210 and the second barrier 220 are connected to each other. In this way, the cavity 110 is divided into the first chamber 111 and the second chamber 112 by the dividing action of the first partition 210 and the second partition 220. Moreover, the side edge of the first partition plate 210 and the side edge of the second partition plate 220 are both connected with the side wall of the cavity 110 in a sealing manner, and one end of the second partition plate 220 far away from the first partition plate 210 is spaced from the bottom wall 140. Thus, make bottom 240 of second baffle 220 and diapire 140 interval set up and form the intercommunication mouth, thereby make first minute chamber 111 communicate through the intercommunication mouth with second minute chamber 112, first minute chamber 111 is isolated each other with second minute chamber 112 in the place except that the intercommunication mouth, when the liquid level of comdenstion water rises to submerging the intercommunication mouth, guarantee the leakproofness of first minute chamber 111, thereby form the water shutoff sealed face on the circulation route of flue gas, at this moment, the flow resistance of flue gas can increase by a wide margin, be favorable to the identification module on the main control board can be timely, effectual discernment comdenstion water discharge port has taken place the jam, and then can be timely, the effectual gas supply that closes, avoid the comdenstion water to produce, and then can avoid taking place to pour into a water because of the liquid level of the comdenstion water is too high, guarantee that fan 400 and main heat transfer unit 500 can not receive the damage. Meanwhile, the height of the smoke inlet 120 to the ground is higher than that of one end, far away from the first partition plate 210, of the second partition plate 220, and even if the communication port is submerged by the condensed water, the liquid level of the condensed water is also below the smoke inlet 120, so that backflow is avoided.

The included angle between the first partition plate 210 and the second partition plate 220 can be flexibly adjusted or designed according to the actual use condition (for example, the included angle can be 75 ° to 105 °, and is preferably 90 °), and only the included angle can be satisfied where the cavity 110 can be partitioned into the first sub-chamber 111 and the second sub-chamber 112, the first sub-chamber 111 and the second sub-chamber 112 are communicated with each other at the bottom of the cavity 110, and the ground height of the smoke inlet 120 is higher than the ground height of the bottom end 240 of the partition 200.

In order to ensure that the first subchamber 111 and the second subchamber 112 are isolated from each other except for the communication port.

Optionally, the side of the first partition 210 is provided with a connecting flange 230 for fitting with the inner side wall of the cavity 110. So, utilize the laminating of connecting turn-ups 230 and the inside wall of cavity 110, increased the area of contact of first baffle 210 with condensing box 100, adopt modes such as spiro union, welding again to be connected turn-ups 230 and the inside wall of cavity 110 to be connected to guarantee that first baffle 210 and condensing box 100 realize tight sealing connection. The side of the first partition 210 refers to all sides of the first partition 210 except the side connected to the second partition 220.

As shown in fig. 2, optionally, the side of the second partition 220 is provided with a connecting flange 230 for fitting with the inner side wall of the cavity 110. So, utilize the laminating of connecting turn-ups 230 and the inside wall of cavity 110, increased the area of contact of second baffle 220 and condensing box 100, adopt modes such as spiro union, welding again to be connected turn-ups 230 and the inside wall of cavity 110 to be connected to guarantee that second baffle 220 and condensing box 100 realize tight sealing connection. The side edges of the second partition board 220 refer to all the side edges of the second partition board 220 except the side connected to the first partition board 210 and the bottom end 240.

Preferably, the side of the first partition 210 and the side of the second partition 220 are both provided with connecting flanges 230. In this way, the partition 200 can be tightly and hermetically connected to the condensation tank 100, and the first sub-chamber 111 and the second sub-chamber 112 are isolated from each other except for the communication port.

After the drain hole is blocked, the water storage amount of the cavity 110 of the condensation tank 100 can be flexibly adjusted. Optionally, the distance (shown as L in fig. 1) between the end of the second partition 220 away from the first partition 210 and the bottom wall 140 is adjustable. Like this, through nimble interval between bottom 240 and the diapire 140 of adjusting second baffle 220 to adjust the radial length of intercommunication mouth, and then adjust the liquid level height when comdenstion water floods the intercommunication mouth, thereby can take place to block up the water storage capacity of back cavity 110 according to the nimble regulation comdenstion water discharge port of in-service use demand. The adjustment of the distance between the end of the second partition board 220 far away from the first partition board 210 and the bottom wall 140 can be achieved by using a telescopic structure for the second partition board 220, for example, the second partition board 220 can be in a form of nesting thick boards and thin boards, the length adjustment of the second partition board 220 is achieved by a stretching manner, and then the adjustment of the distance between the end of the second partition board 220 far away from the first partition board 210 and the bottom wall 140 is achieved.

The opening positions of the smoke inlet 120 and the smoke outlet 130 can be flexibly designed or adjusted according to actual use requirements, and only the partition 200 is required to be used for dividing the cavity 110 into the first sub-cavity 111 communicated with the smoke inlet 120 and the second sub-cavity 112 communicated with the smoke outlet 130, the first sub-cavity 111 and the second sub-cavity 112 are communicated with each other at the bottom of the cavity 110, and the ground height of the smoke inlet 120 is higher than that of the bottom end 240 of the partition 200.

Optionally, the smoke inlet 120 is disposed on a sidewall of the condensation tank 100. The smoke discharge port 130 is provided at a top wall of the condensation tank 100. Specifically, the smoke inlet 120 may be opened on a circumferential side wall (e.g., a left side wall or a right side wall) of the condensation tank 100, and the smoke outlet 130 may be opened at the top of the condensation tank 100. The first partition 210 is disposed above the smoke inlet 120 and below the smoke outlet 130. The second barrier 220 is perpendicular to the first barrier 210 and extends toward the lower side of the first barrier 210. In this way, the cavity 110 is divided into the first sub-cavity 111 and the second sub-cavity 112 by the dividing action of the first partition 210 and the second partition 220, and the first sub-cavity 111 and the second sub-cavity 112 are communicated with each other at the bottom of the cavity 110, and the ground level of the smoke inlet 120 is higher than that of the bottom end 240 of the partition 200.

Optionally, the condensing device further comprises a liquid level detecting element (not shown) and an alarm element (not shown). The liquid level detection element is disposed in the cavity 110, and the liquid level detection element is electrically connected to the alarm element. Therefore, the height of the condensed water in the cavity 110 is detected by the liquid level detection element, and when the height of the condensed water is higher than the preset height value, the alarm element is used for sending out a warning signal to remind a user of timely cleaning or maintaining. Wherein, the liquid level detecting element can be a liquid level sensor or other existing elements capable of detecting the liquid level height. The alarm element can be a warning light, and can also be an element such as a buzzer. The electric connection of the liquid level detection element and the alarm element can be realized through a wire or Bluetooth transmission, and an intermediate element can be arranged to process signals and then enable the alarm element to execute alarm response. The liquid level detecting element can be fixed on the inner side wall of the cavity 110 by means of plugging or clamping. The alarm element may be fixed on the outer sidewall of the condensation box 100 by means of inserting or clamping.

To facilitate the cold water pipe 300 to be at least partially inserted into the cavity 110. Optionally, the bottom wall 140 is provided with a first mounting hole (not labeled) and a second mounting hole (not labeled) which are arranged at intervals and used for passing the cold water pipe 300. The first mounting hole and the second mounting hole are both communicated with the cavity 110. And, the first mounting hole is provided corresponding to the first sub-chamber 111, and the second mounting hole is provided corresponding to the second sub-chamber 112. Thus, the cold water pipe 300 can be inserted into the second sub-chamber 112 from the second mounting hole, and then extended into the first sub-chamber 111 from the second sub-chamber 112, and finally passed out from the first mounting hole. When the flue gas enters from the flue gas inlet 120 and flows in the first sub-chamber 111 and the second sub-chamber 112, the flue gas can fully contact with the cold water pipe 300 to exchange heat, and the preheating of water is realized.

As shown in fig. 1, specifically, the cold water pipe 300 includes a first pipe segment 310 and a second pipe segment 320 that are communicated with each other, the first pipe segment 310 is disposed in the first sub-chamber 111, and the second pipe segment 320 is disposed in the second sub-chamber 112. Like this, first pipeline section 310 and second pipeline section 320 that buckle each other and communicate are arranged respectively in first loculus 111 and second loculus 112, and the water source gets into second pipeline section 320 earlier and flows into first pipeline section 310 and then flows out to main heat transfer device 500, utilizes the flue gas that flows in first loculus 111 and second loculus 112 to carry out the heat transfer to water in order to preheat water, has improved the utilization ratio of flue gas, has also improved heat exchange efficiency.

The arrangement of the first pipe section 310 in the first sub-chamber 111 can be flexibly designed or adjusted according to the actual use requirement.

As shown in fig. 1, the first pipe segment 310 optionally includes at least two first branch pipes 311 arranged in parallel and spaced apart from each other, and at least one second branch pipe 312 for communicating the adjacent two first branch pipes 311. The first branch pipe 311 and the second branch pipe 312 are disposed in the first sub-chamber 111. Like this, the extension orbit of at least two first branch pipes 311 and at least one second branch pipe 312 in first minute cavity 111 is the broken line, has prolonged the length of arranging of first tube section 310 in first minute cavity 111 for the flue gas can be abundant contact with first tube section 310, has improved heat exchange efficiency. The first branch pipe 311 may be in a vertical state, and the second branch pipe 312 may be a straight pipe or an arc pipe.

The arrangement of the second pipe section 320 in the second sub-chamber 112 can be flexibly designed or adjusted according to the actual use requirement.

As shown in fig. 1, optionally, the second pipe segment 320 includes at least two third branch pipes 321 arranged in parallel and at an interval, and at least one fourth branch pipe 322 for communicating the two adjacent third branch pipes 321, and the third branch pipes 321 and the fourth branch pipes 322 are both arranged in the second sub-chamber 112. Like this, the extension orbit of at least two third minute pipes 321 and at least one fourth minute pipe 322 in second loculus 112 is the broken line, has prolonged the length of arranging of second tube section 320 in second loculus 112 for the flue gas can be abundant contact with second tube section 320, has improved heat exchange efficiency. The third branch pipe 321 may be in a vertical state, and the fourth branch pipe 322 may be a straight pipe or an arc pipe.

Specifically, the second branch pipe 312 and the fourth branch pipe 322 can communicate with each other to realize the communication between the first pipe section 310 and the second pipe section 320; it may be that the second branch 312 and the third branch 321 communicate with each other to achieve the communication between the first pipe section 310 and the second pipe section 320.

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. A condensing unit, comprising:

the condensation box (100) is provided with a cavity (110), a smoke inlet (120) communicated with the cavity (110) and a smoke outlet (130) communicated with the cavity (110);

the partition (200), the partition (200) be used for with cavity (110) separate for with advance first minute chamber (111) of smoke mouth (120) intercommunication, and with second minute chamber (112) of smoke vent (130) intercommunication, the bottom of partition (200) with diapire (140) interval setting of cavity (110) make first minute chamber (111) with second minute chamber (112) are in the bottom of cavity (110) communicates each other, and, the height to ground of advancing smoke mouth (120) is higher than the height to ground of bottom (240) of partition (200).

2. A condensation device according to claim 1, characterized in that the partition (200) comprises a first partition (210) and a second partition (220) arranged at an included angle, the first partition (210) and the second partition (220) are connected with each other, the side of the first partition (210) and the side of the second partition (220) are both connected with the side wall of the cavity (110) in a sealing manner, one end of the second partition (220) far away from the first partition (210) is arranged at a distance from the bottom wall (140), and the ground height of the smoke inlet (120) is higher than the ground height of one end of the second partition (220) far away from the first partition (210).

3. A condensation device according to claim 2, characterized in that the side of the first partition (210) and/or the side of the second partition (220) is provided with a connecting flange (230) for abutment with the inner side wall of the cavity (110).

4. A condensation device according to claim 2, characterized in that the distance between the end of the second partition (220) remote from the first partition (210) and the bottom wall (140) is adjustable.

5. A condensation device according to claim 2, wherein the smoke inlet (120) is arranged on a side wall of the condensation box (100), the smoke outlet (130) is arranged on a top wall of the condensation box (100), the first partition (210) is arranged above the smoke inlet (120) and below the smoke outlet (130), and the second partition (220) is perpendicular to the first partition (210) and extends towards the lower part of the first partition (210).

6. A condensation device according to any one of claims 1 to 5, characterized in that it further comprises a liquid level detection element and an alarm element, said liquid level detection element being arranged in said cavity (110), said liquid level detection element being electrically connected to said alarm element.

7. A condensing heat exchanger, comprising a cold water pipe (300) and a condensing unit according to any one of claims 1 to 6, wherein the cold water pipe (300) comprises a first pipe segment (310) and a second pipe segment (320) which are communicated with each other, the first pipe segment (310) is disposed in the first sub-chamber (111), and the second pipe segment (320) is disposed in the second sub-chamber (112).

8. The condensing heat exchanger according to claim 7, wherein the bottom wall (140) is provided with a first mounting hole and a second mounting hole which are arranged at intervals and used for the cold water pipe (300) to pass through, the first mounting hole and the second mounting hole are both communicated with the cavity (110), the first mounting hole is arranged corresponding to the first sub-cavity (111), and the second mounting hole is arranged corresponding to the second sub-cavity (112).

9. A condensing heat exchanger according to claim 7, characterised in that the first tube section (310) comprises at least two first branch tubes (311) arranged parallel to each other and spaced apart, and at least one second branch tube (312) for connecting two adjacent first branch tubes (311), wherein the first branch tube (311) and the second branch tube (312) are both arranged in the first sub-chamber (111).

10. A condensing heat exchanger according to claim 7, characterised in that the second tube section (320) comprises at least two third branch tubes (321) arranged parallel to each other and spaced apart, and at least one fourth branch tube (322) for connecting two adjacent third branch tubes (321), wherein the third branch tube (321) and the fourth branch tube (322) are both arranged in the second subchamber (112).

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