Condensation type heat exchanger, condensate water treatment device and gas water heater

Abstract

The utility model discloses a condensation type heat exchanger, a condensate water treatment device and a gas water heater, which are characterized in that the condensation type heat exchanger comprises a rotational flow condensation bin, a smoke exhaust pipe and a condensate water pipe, the side part of the rotational flow condensation bin is provided with a gas inlet, the smoke exhaust pipe is vertically arranged in the middle of the rotational flow condensation bin, and the condensate water pipe is spirally arranged outside the smoke exhaust pipe; and a condensed water outlet is formed in the lower part of the rotational flow condensation bin. The device is good in stability, condensate water does not need to be directly drained into a sewer, a condensate water drainage pipe does not need to be installed, and a user can conveniently install and use the device.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, and more specifically to a condensing heat exchanger and a condensed water treatment device thereof, and a gas water heater. Background Art

[0002] The existing condensing heat exchanger cavity is provided with a disorderly coiled condensing coil. After the flue gas enters the cavity from one side, it exchanges heat with part of the coil surface and is finally discharged from the top exhaust port. For example, the Chinese patent publication number is CN117213062A, which discloses a condensing heat exchanger, a condensing heat exchange system, a water heater and a heat exchange control method. The utility model condensing heat exchanger, condensing heat exchange system, water heater and heat exchange control method can improve the thermal efficiency of conventional gas water heaters. It is easy to install, has a low modification cost and does not affect the normal use of gas heating equipment. The utility model condensing heat exchanger includes a body, a heat exchange mechanism, a connecting mechanism and a smoke guide mechanism. The body has a body smoke inlet at the bottom and a body smoke exhaust at the top. The heat exchange mechanism and the smoke guide mechanism are arranged in the body, and the heat exchange mechanism is used to exchange heat for the cold medium circulating inside the body. The connecting mechanism is arranged at the body smoke inlet, and the body smoke inlet is detachably and sealedly connected to the outlet of the smoke exhaust mechanism of the gas heating equipment through the connecting mechanism. The smoke guide mechanism is located between the body smoke inlet and the body smoke exhaust, and is used to change the flow direction of the smoke in the body, extend the convection path of the high-temperature smoke, and improve the heat exchange efficiency. However, the disadvantages of this patent structure are: the contact surface between the smoke guide cavity and the heat conduction coil is very small, so it is necessary to set a cavity outside the smoke guide cavity for heat exchange between the smoke and the heat conduction coil, and the annular space is prone to form a reflux dead zone and vortex, generating aerodynamic noise; the condensate is directly discharged into the sewer, which requires the user to install another drainage pipe, which brings installation difficulties. For this reason, it is necessary to further improve the existing technology. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a condensing heat exchanger which is stable, reliable and convenient for users to install and use.

[0004] Another object of the utility model is to provide a condensed water treatment device.

[0005] Another object of the utility model is to provide a gas water heater.

[0006] The utility model adopts the following technical solutions to achieve the above-mentioned purpose: a condensing heat exchanger, characterized in that it includes a cyclone condensation chamber, a condensation coil, a smoke exhaust pipe, and an air intake adapter. A smoke inlet is provided on the side of the cyclone condensation chamber, and the air intake adapter is installed on the smoke inlet.

[0007] The smoke exhaust pipe is arranged in the middle of the cyclone condensation bin, the condensation coil is spirally arranged around the smoke exhaust pipe, the cyclone condensation bin is respectively provided with a condensate outlet, a coil installation inlet and a coil installation outlet, and both ends of the condensation coil are respectively connected to the coil installation inlet and the coil installation outlet.

[0008] As a further illustration of the above scheme, there is a smoke inlet space between the lower end of the smoke exhaust pipe and the cyclone condensation bin, and the upper end of the smoke exhaust pipe protrudes out of the cyclone condensation bin to discharge smoke outward.

[0009] Furthermore, an annular space is formed between the condensing water pipe and the cyclone condensation bin, and the condensing water pipe is spirally connected and fixed in the annular space inside the cyclone condensation bin.

[0010] A condensate water treatment device is characterized in that it includes a condensate water atomizer connected to the condensate water outlet of a condensing heat exchanger, the condensate water atomizer includes a condensate water box, a sponge, an atomizing sheet, and a fixed cover, and the condensate water box is connected and fixed to the condensate water outlet.

[0011] Furthermore, the condensate outlet is provided with a convex edge extending downward, and the condensate box is sleeved on the convex edge and is sealed and connected in a sealing ring.

[0012] Furthermore, a perforated slot is provided at the bottom of the condensed water box for fixing the sponge; the atomizing sheet is arranged on the top of the perforated slot and fixed in position by a fixing cover, the wires of the atomizing sheet are led out through the perforated slot and are externally connected to the control panel of the gas water heater, and the sponge is used as a medium to connect the water at the bottom of the condensed water box with the atomizing sheet, so that the condensed water can be conducted upward to the atomizing sheet.

[0013] Furthermore, a liquid level sensor is provided at the bottom of the condensed water box, which automatically transmits a signal to the control board and disconnects the atomizing sheet to prevent dry burning when the water is drained.

[0014] A gas water heater is characterized in that it comprises a water heater body, a condensing heat exchanger is arranged in the water heater body, and the condensing heat exchanger is connected to a condensed water treatment device.

[0015] The beneficial effects that can be achieved by the utility model by adopting the above technical solution are:

[0016] The utility model adopts a condensing heat exchanger structure which is mainly composed of a vortex condensation bin, a smoke exhaust pipe and a condensed water pipe. The exhaust gas from the gas water heater after one heat exchange enters the annular vortex heat exchange space from the air inlet of the condensing heat exchanger, and flows to the bottom in a vortex manner along the condensing coil. The condensing coil has a guiding function, so it is difficult for the annular space to form a reflux dead zone and eddy current, and it is not easy to generate aerodynamic noise. The flue gas and water vapor with residual heat can fully exchange heat with the condenser, the water vapor condenses on the surface of the coil, and is blown by the airflow to flow downward along the surface of the coil in a spiral and finally enters the condensed water box in the bottom flow channel, while the low-temperature flue gas after heat exchange forms a vortex from the bottom and enters the exhaust pipe, moves upward along the exhaust pipe and is transported to the outdoors. Therefore, the aerosol sprayed by the ultrasonic atomizer will be gathered and will not diffuse out of the projected space of the exhaust pipe, which is beneficial to the transportation and discharge of atomized droplets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the water heater of the utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the condensing heat exchanger of the utility model.

[0019] Figure 3 A cross-sectional view of a condensing heat exchanger.

[0020] Figure 4 A cross-sectional view of a condensing heat exchanger.

[0021] Figure 5 Exploded view of a condensing heat exchanger.

[0022] Figure 6 This is a schematic diagram of the exploded structure of the condensate treatment device.

[0023] Figure 7 It is a cross-sectional view of a condensate treatment device.

[0024] Explanation of the reference numerals: 1, condensing heat exchanger 1-1, cyclone condensation chamber 1-2, smoke exhaust pipe 1-3, condensate pipe 1-4, air inlet square pipe 1-5, condensate outlet 2, condensate treatment device 2-1, condensate box 2-11, opening slot 2-2, sponge 2-3, atomizing sheet 2-4, fixing cover 3, water heater body. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, "at least" means one or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "below" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the height of the second feature. A first feature being "above", "below" and "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the second feature.

[0029] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, and cannot be understood as limiting the utility model.

[0030] like Figure 1-Figure 7As shown, the utility model is a condensing heat exchanger, a condensed water treatment device and a gas water heater, wherein the condensing heat exchanger 1 and the condensed water treatment device 2 are both installed inside the water heater body 3. The condensing heat exchanger 1 structurally comprises a cyclone condensation chamber 1-1, a smoke exhaust pipe 1-2, and a condensed water pipe 1-3. An air inlet is arranged on the side of the cyclone condensation chamber 1-1, and an air inlet square pipe 1-4 is arranged on the air inlet for easy connection with the smoke pipe of the gas water heater. The smoke exhaust pipe 1-2 is vertically arranged in the middle of the swirl condensation bin 1-1, and there is a gap between the lower end of the smoke exhaust pipe 1-2 and the bottom of the swirl condensation bin to form a smoke inlet space. The condensation water pipe 1-3 is spirally arranged outside the smoke exhaust pipe 1-2, and the upper end of the smoke exhaust pipe 1-2 protrudes outside the swirl condensation bin to discharge smoke outward. An annular space is formed between the condensation water pipe 1-3 and the swirl condensation bin 1-1. The condensation water pipe 1-3 is spirally connected and fixed in the annular space inside the swirl condensation bin 1-1, so that the smoke entering from the air inlet can flow downward along the condensation water pipe and enter the smoke inlet space. Therefore, it is difficult for the annular space to form a reflux dead zone and vortex, and it is not easy to generate aerodynamic noise.

[0031] The lower part of the cyclone condensation bin 1-1 is provided with a condensate outlet 1-5, and the condensate treatment device 2 includes a condensate atomizer, which includes a condensate box 2-1, a sponge 2-2, an atomizer sheet 2-3, and a fixed cover 2-4. The condensate box 2-1 is connected and fixed to the condensate outlet 1-5. In this embodiment, the condensate outlet 1-5 is provided with a convex edge extending downward, and the condensate box is sleeved on the convex edge and is sealed and connected in a sealing ring. The bottom of the condensate box 2-1 is provided with an open card slot 2-11 for fixing the sponge; the atomizer sheet 2-3 is arranged at the top of the open card slot and is fixed and limited by the fixed cover, and the wire of the atomizer sheet 2-3 is led out through the open card slot and connected to the control board of the gas water heater. The sponge is used as a medium to connect the water at the bottom of the condensate box with the atomizer sheet, so that the condensate can be conducted upward to the atomizer sheet. Among them, the atomizer sheet adopts an ultrasonic atomizer sheet. Of course, there can be many ways of atomization, such as a ceramic atomizer sheet or a hydraulic atomization form. A liquid level sensor is installed at the bottom of the condensate box. When the water is drained, it will automatically transmit a signal to the control board and disconnect the atomizer to prevent dry burning.

[0032] The exhaust gas from the gas water heater after one heat exchange enters the annular vortex heat exchange space from the upper air inlet of the condensing heat exchanger, and flows in a vortex manner along the condensing water pipe to the bottom. The flue gas and water vapor with residual heat can fully exchange heat with the condensing water pipe. The water vapor condenses on the surface of the condensing water pipe and is blown by the airflow to flow downward along the coil surface and finally enters the condensing water box in the bottom flow channel. The low-temperature flue gas after heat exchange forms a vortex from the bottom and enters the exhaust pipe, moves upward along the exhaust pipe and is transported to the outside.

[0033] Compared with the prior art, the utility model is less likely to form a reflux dead zone and eddy current inside the cyclone condensation bin, and is less likely to generate aerodynamic noise; the condensed water does not need to be directly discharged into the sewer, so there is no need to install a condensed water drain pipe, which is convenient for users to install and use.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A condensing heat exchanger, characterized in that: It includes a cyclone condensation bin, a smoke exhaust pipe, and a condensed water pipe. An air inlet is arranged on the side of the cyclone condensation bin, the smoke exhaust pipe is vertically arranged in the middle of the cyclone condensation bin, the condensed water pipe is spirally arranged outside the smoke exhaust pipe, and a condensed water outlet is arranged at the bottom of the cyclone condensation bin.

2. The condensing heat exchanger according to claim 1, characterized in that: A smoke inlet space is provided between the lower end of the smoke exhaust pipe and the cyclone condensation chamber, and the upper end of the smoke exhaust pipe protrudes out of the cyclone condensation chamber.

3. The condensing heat exchanger according to claim 1, characterized in that: An annular space is formed between the condensing water pipe and the cyclone condensing bin, and the condensing water pipe is spirally connected and fixed in the annular space inside the cyclone condensing bin.

4. A condensate treatment device, characterized in that: It includes a condensate atomizer connected to the condensate outlet of the condensing heat exchanger as described in any one of claims 1-3, the condensate atomizer includes a condensate box, a sponge, an atomizer sheet, and a fixed cover, and the condensate box is connected and fixed to the condensate outlet.

5. The condensate treatment device according to claim 4, characterized in that: The condensate outlet is provided with a convex edge extending downward, and the condensate box is sleeved on the convex edge and is sealed and connected in a sealing ring.

6. The condensate treatment device according to claim 4, characterized in that: A perforated slot is provided at the bottom of the condensed water box for fixing the sponge; the atomizer sheet is arranged at the top of the perforated slot and fixed in position by a fixing cover, and the wire of the atomizer sheet is led out through the perforated slot. The sponge serves as a medium to connect the water at the bottom of the condensed water box with the atomizer sheet, so that the condensed water can be conducted upward to the atomizer sheet.

7. The condensate treatment device according to claim 4, characterized in that: A liquid level sensor is arranged at the bottom of the condensed water box.

8. A gas water heater, characterized in that: It comprises a water heater body, in which a condensing heat exchanger as claimed in any one of claims 1 to 3 is arranged, and the condensing heat exchanger is connected to a condensed water treatment device as claimed in any one of claims 4 to 7.

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