Water-gas separation type drainage device, condensate water drainage device and condensation type gas water heater

Abstract

The utility model discloses a water-gas separation type drainage device, a condensate water drainage device and a condensation type gas water heater. The water-gas separation type drainage device comprises a water rotating disc, a motor and a drainage cavity. The water rotating disc is connected with the motor; the drainage cavity comprises an air inlet and an air outlet; the water rotating disc is positioned between the air inlet and the air outlet; the motor is positioned inside or outside the drainage cavity; and a water-gas separation piece is arranged below the water rotating disc. According to the utility model, condensed water can be atomized and discharged, and meanwhile, backflow condensed water and flue gas can be separated, so that the condition that the backflow condensed water moves upwards again along with the flue gas in the prior art is relieved, the power of the motor is kept in a reserved power range, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to a water-gas separation type drainage device, a condensed water discharge device, and a condensing gas water heater. Background Art

[0002] Compared to conventional gas water heaters, condensing gas water heaters have an additional condensing heat exchanger, which absorbs high-temperature flue gas to preheat the cold water, thereby improving heat conversion efficiency and saving gas costs. However, condensing water is produced during the preheating process, and acidic gases in the flue gas dissolve in the condensed water, forming acidic condensate.

[0003] Currently, one of the current trends in condensate treatment is to atomize acidic condensate and discharge it with the flue gas. Prior art involves sending condensate to a turntable, which is then driven by a drive device to rotate, throwing the water out and colliding with any vertical surface to atomize the condensate, which is then discharged with the flue gas generated by the combustion. However, in actual applications, it has been found that condensate sometimes flows back to the bottom of the turntable and then rises again with the flue gas. This condensate, which then flows back and rises with the flue gas, hits the lower surface of the turntable and adheres to it, affecting the balance of the turntable. This consumes additional power from the drive device, increasing the power of the drive device, causing the drive device to heat up and shorten its lifespan. Therefore, in response to the above problems and technical requirements, it is necessary to improve existing condensate treatment devices. Summary of the Invention

[0004] In response to the above problems, the purpose of the present utility model is to provide a water-gas separation drainage device and a condensed water discharge device, and a condensing gas water heater, which can atomize and discharge the condensed water, and at the same time separate the refluxed condensed water and the flue gas, thereby alleviating the situation in the prior art where the refluxed condensed water rises again with the flue gas, and improving the stability and safety of the device operation.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A water-gas separation type drainage device includes a vortex disk, a motor, and a drainage cavity; the vortex disk is connected to the motor; the drainage cavity includes an air inlet and an air outlet; the vortex disk is located between the air inlet and the air outlet; the motor is located inside or outside the drainage cavity; a water-gas separation component is provided below the vortex disk.

[0007] In this utility model, condensed water is transported to a vortex disk, which is driven by a motor to rotate. This disk is then thrown out and collides with the drainage chamber, forming atomized condensed water. This atomized condensed water is then discharged from the gas water heater along with the flue gas generated by combustion in the main combustion chamber. Some of the condensed water then flows back through the water-gas separator, which divides the air inlet into two channels. The majority of the refluxed condensed water flows back through the outer wall of the water-gas separator, reducing the risk of it being carried out again by the flue gas and improving the stability of the device's operation.

[0008] In the present invention, the motor is located outside the drainage cavity, which means that the motor and the atomized condensed water are not in the same cavity, so as to avoid the motor being exposed to a humid environment for a long time and corrosion. Preferably, the motor is located outside the drainage cavity, on the wall with the air outlet, and the water swirl is placed horizontally.

[0009] Preferably, the water-gas separator is annular in structure and is partially or entirely located in the drainage cavity. The water-gas separator is used to separate the refluxed condensed water and the flue gas, preventing the refluxed condensed water from being carried out again by the flue gas and affecting the stability of the cyclone.

[0010] Preferably, a recovery component is provided on the outer wall of the water vapor separator. Further preferably, the recovery component is sealed and connected to the inner wall of the drainage cavity to form a return water temporary storage chamber. The recovery component is a plate-like structure or a sheet-like structure, located between the outer wall of the water vapor separator and the inner wall of the drainage cavity, and is used to isolate the flue gas; when the recovery component is sealed and connected to the inner wall of the drainage cavity, the refluxed condensed water and the flue gas can be completely separated, thereby preventing the refluxed condensed water from being carried out by the flue gas again, improving the stability of the vortex disk and the motor operation, and the formed return water temporary storage chamber can store the refluxed condensed water.

[0011] Preferably, the return water storage chamber is provided with a drain pipe. In actual application, one end of the drain pipe is connected to the return water storage chamber, and the other end is connected to the condensate collection chamber, for conveying the returned condensate to the condensate collection chamber to be atomized and discharged again.

[0012] Preferably, the inner wall of the water vapor separator is an arc-shaped structure. The arc-shaped structure refers to a vertically curved inner wall of the water vapor separator. Compared to a vertical structure, an arc-shaped inner wall of the water vapor separator can prevent smoke from concentrating in a certain area, thereby improving smoke flow efficiency.

[0013] Preferably, the water spinning disk is placed horizontally. The water spinning disk is placed horizontally and rotates horizontally under the drive of the motor, which can provide better water rejection ability than vertical rotation.

[0014] In the present invention, the axis of the swirl tray and the axis of the air inlet are located on the same straight line or are not on the same straight line. The axis refers to a straight line that extends infinitely. Flue gas flows out of the main combustion chamber, passes through the air inlet and the air outlet in sequence, and carries away the atomized condensed water in the drainage cavity; when the axis of the swirl tray and the axis of the air inlet are located on the same straight line, the swirl tray and the air inlet partially overlap or completely overlap; when the axis of the swirl tray and the axis of the air inlet are not on the same straight line, the axis of the swirl tray passes through the air inlet or does not pass through the air inlet, and the swirl tray and the air inlet partially overlap or do not overlap.

[0015] Furthermore, the axis of the vortex disk and the axis of the air inlet are co-linear, and either co-linear or non-co-linear with the axis of the air outlet. Preferably, the axis of the vortex disk and the axis of the air inlet are co-linear, and either non-co-linear with the axis of the air outlet. The axis of the vortex disk may or may not pass through the air outlet, and the vortex disk and the air outlet may or may not overlap. With this structure, the flow path of the smoke through the air inlet differs from the flow path of the smoke / water vapor mixture, reducing the ability of larger water vapor particles to escape with the smoke.

[0016] As another example, the axis of the water swirling disk, the axis of the air inlet, and the axis of the air outlet are not on the same straight line, the axis of the water swirling disk passes through the air outlet or does not pass through the air outlet, and the water swirling disk and the air outlet partially overlap or do not overlap.

[0017] As common sense, the overlap in the present invention refers to the projection of each component on the same plane, rather than actual contact overlap, which can be understood by those skilled in the art based on common sense.

[0018] Preferably, a collision barrier is installed outside the vortex pan and within the drainage cavity. The collision barrier comprises a retaining ring and collision posts spaced apart on the retaining ring. Condensed water ejected from the vortex pan collides with the collision barrier, forming atomized condensed water. The collision barrier is conventionally secured to the motor using conventional connectors, as long as it can be secured to the outside of the vortex pan.

[0019] The utility model discloses a condensate discharge device, comprising a condensate collection chamber, a water delivery device, and the aforementioned water-gas separation type drainage device. The water delivery device includes a water delivery pipe, one end of which is located above a swirl pan. The condensate collection chamber is used to collect condensate generated by preheating cold water, and the water delivery device is used to deliver the condensate to the swirl pan.

[0020] The utility model discloses a condensing gas water heater, comprising the above-mentioned condensed water discharge device; the water-gas separation type drainage device is located inside or outside the condensing gas water heater.

[0021] When the water-gas separation drainage device is located in a condensing gas water heater, the air inlet is connected to the condenser, a conventional component of the condensing gas water heater, and the air outlet is connected to the exhaust pipe, a conventional component of the condensing gas water heater. The water supply device sends the condensed water in the condensed water collection chamber to the cyclone for atomization. The atomized condensed water is then carried out of the drainage chamber by the smoke generated by combustion and discharged to the outside through the exhaust pipe.

[0022] When the water-gas separation drainage device is located outside the condensing gas water heater, the water-gas separation drainage device is connected in series to any position of the exhaust pipe, a conventional component of the condensing gas water heater, through the air inlet and outlet of the drainage cavity. The water supply device sends the condensed water in the condensed water collection cavity to the cyclone for atomization. The atomized condensed water is then carried out of the drainage cavity by the smoke generated by combustion and discharged to the outside through the exhaust pipe.

[0023] Due to the application of the above-mentioned technical scheme, the beneficial effects of the present invention compared with the prior art are: First, by arranging a water-gas separation component, the separation of the reflux condensed water and the flue gas is achieved, which alleviates the situation where the reflux condensed water is again carried out by the flue gas and affects the stability of the vortex disk, and unexpectedly keeps the motor power within the reserved range, thereby extending the service life of the motor; second, by arranging a recovery component, the recovery component is sealed and connected to the inner wall of the drainage cavity, thereby achieving complete separation of the reflux condensed water and the flue gas, significantly improving the situation of increased motor power, and the operation process of the device is stable; third, the present invention is flexible and convenient to use, and has strong practicality. It can be directly integrated into a condensing gas water heater as a component, and can also be connected in series as a separate module at any position of the exhaust pipe of a conventional component, and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the water-gas separation type drainage device of Example 1.

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the water-gas separation type drainage device of Example 1 (the air outlet is omitted).

[0026] Figure 3 It is a structural schematic diagram of the water-gas separation component of the water-gas separation type drainage device of Example 1.

[0027] Figure 4 It is a front view of the water-gas separation type drainage device of Example 2.

[0028] Figure 5 It is a bottom view of the water-gas separation type drainage device of Example 2.

[0029] Figure 6 It is a bottom view of the water-gas separation component of the water-gas separation type drainage device of Example 3.

[0030] Figure 7 It is a structural schematic diagram of the water-gas separation component of the water-gas separation type drainage device of Example 5.

[0031] Figure 8 This is the condensing gas water heater of the eleventh embodiment.

[0032] Among them: swirl plate 1, motor 2, drainage chamber 3, water-gas separation component 4, air inlet 301, air outlet 302, recovery component 5, return water temporary storage chamber 6, drainage pipe 7, collision fence 8, fixing ring 801, collision column 802, condensate collection chamber 9, water supply pipe 10, water pump 11, condenser 12, smoke exhaust pipe 13. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The specific components involved are existing products, conventional mounting holes are provided on the specific components, and the connection and use methods between the specific components are conventional technologies.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this invention pertains; the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention; for example, the directions or positions indicated by the terms "inverted", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are for ease of description only and should not be construed as limiting this technical solution. Example 1

[0035] like Figures 1 to 3 As shown:

[0036] A water-gas separation drainage device includes a vortex disk 1, a motor 2, and a drainage cavity 3. The motor is located outside the drainage cavity, on a wall with an air outlet; the vortex disk is connected to the motor; the drainage cavity includes an air inlet 301 and an air outlet 302; the vortex disk is located between the air inlet and the air outlet; a water-gas separation element 4 is provided below the vortex disk.

[0037] The water vapor separator is an annular structure with a vertical inner wall, all located in the drainage cavity. The outer wall of the water vapor separator is provided with a recovery member 5, which is a plate-shaped structure and is sealed and connected to the inner wall of the drainage cavity to form a return water temporary storage cavity 6.

[0038] The return water storage chamber is provided with a drain pipe 7. In actual application, one end of the drain pipe is connected to the return water storage chamber, and the other end is connected to the condensed water collection chamber, which is used to transport the refluxed condensed water to the condensed water collection chamber to be atomized and discharged again.

[0039] The drainage cavity includes an air inlet 301 and an air outlet 302, forming an air flow path; the axis of the vortex disk and the axis of the air inlet are located on the same straight line, and are not on the same straight line with the axis of the air outlet. The vortex disk and the air inlet partially overlap, and the axis of the vortex disk does not pass through the air outlet and does not overlap with the air outlet.

[0040] The swirl tray is positioned horizontally and mounted on the motor's rotating shaft. A collision barrier 8 is installed on its exterior, located within the drainage chamber. The barrier comprises a retaining ring 801 and spaced collision posts 802 arranged on the retaining ring. The collision posts are triangular prisms and vertically mounted on the retaining ring. The barrier is secured using conventional techniques and can be attached to the motor using conventional fasteners and connectors, or to the inner wall of the drainage chamber. As long as the barrier can be secured to the exterior of the swirl tray, the technical benefits of the present invention will not be compromised. Example 2

[0041] Based on the first embodiment, the present invention is different in that the axis of the water swirling disk, the axis of the air inlet, and the axis of the air outlet are not in the same straight line. The axis of the water swirling disk deviates from the axis of the air inlet by 35 mm. The axis of the water swirling disk passes through the air inlet and partially overlaps with the air inlet. The axis of the water swirling disk does not pass through the air outlet and does not overlap with the air outlet. Figure 4 、 Figure 5 , the rest is the same. Example 3

[0042] Based on the first embodiment, the difference of this embodiment is that the recovery unit and the drain pipe are omitted. Figure 6 , the rest is the same. Example 4

[0043] Based on the second embodiment, the difference of this embodiment is that the recovery component and the drain pipe are omitted, and the rest are the same. Example 5

[0044] Based on the second embodiment, the difference of this embodiment is that the inner wall of the water-gas separation element is an arc-shaped structure. Figure 7 , the rest is the same. Example 6

[0045] Based on the first embodiment, the present embodiment is different in that the grille is omitted, and the rest is the same. Example 7

[0046] A condensate discharge device includes a condensate collection chamber 9, a water supply device and the water-gas separation type drainage device of embodiment 1; the water supply device includes a conventional water supply pipe 10 and a water pump 11; one end of the water supply pipe is located above the vortex disk. Example 8

[0047] On the basis of the seventh embodiment, the difference of this embodiment is that the water-gas separation type drainage device of the first embodiment is replaced by the water-gas separation type drainage device of the second embodiment, and the rest is the same. Embodiment 9

[0048] Based on the seventh embodiment, the difference of this embodiment is that the water-gas separation type drainage device of the first embodiment is replaced by the water-gas separation type drainage device of the third embodiment, and the rest is the same. Example 10

[0049] On the basis of the seventh embodiment, the difference of this embodiment is that the water-gas separation type drainage device of the first embodiment is replaced by the water-gas separation type drainage device of the fourth embodiment, and the rest is the same. Example 11

[0050] A condensing gas water heater, comprising the condensate discharge device of embodiment 7; the water-gas separation type drainage device is located in the condensing gas water heater, the air inlet is connected to the conventional component condenser 12 of the condensing gas water heater, and the air outlet is connected to the conventional component exhaust pipe 13 of the condensing gas water heater, see Figure 8 .

[0051] The specific method of discharging condensed water is:

[0052] (1) The condensing gas water heater works, generating high-temperature flue gas and condensed water, which is stored in the condensed water collection chamber;

[0053] (2) The water pump delivers the condensed water to the vortex disk. The motor drives the vortex disk to rotate, throwing the water out and colliding with the collision grid to form atomized condensed water. The high-temperature flue gas enters the drainage cavity, carrying the atomized condensed water out and discharging it into the exhaust pipe.

[0054] Furthermore, the refluxed condensed water falls into the return water temporary storage chamber and is transported to the condensed water collection chamber by the drain pipe, and step (2) is repeated. Example 12

[0055] A condensing gas water heater includes the condensate drain device of embodiment 7; the water-gas separation drain device is located outside the condensing gas water heater, and the air inlet of the drain cavity is connected to a conventional exhaust pipe. In actual use, the other end of the drain cavity can also be connected to a conventional exhaust pipe, as needed. Example 13

[0056] On the basis of the eleventh embodiment, the difference of this embodiment is that the condensed water discharge device of the seventh embodiment is replaced by the condensed water discharge device of the eighth embodiment, and the rest is the same. Example 14

[0057] On the basis of the eleventh embodiment, the difference of this embodiment is that the condensed water discharge device of the seventh embodiment is replaced by the condensed water discharge device of the ninth embodiment, and the rest is the same. Example 15

[0058] On the basis of the eleventh embodiment, the difference of this embodiment is that the condensed water discharge device of the seventh embodiment is replaced by the condensed water discharge device of the tenth embodiment, and the rest is the same. Comparative Example 1

[0059] On the basis of the eleventh embodiment, the water-gas separation component, the recovery component and the drain pipe are omitted, and the rest are the same. Comparative Example 2

[0060] On the basis of the thirteenth embodiment, the water-gas separation component, the recovery component and the drain pipe are omitted, and the rest are the same.

[0061] Application Examples

[0062] Parallel experiments were conducted using the condensing gas water heaters of Examples 11, 13, 14, and 15, Comparative Example 1, and Comparative Example 2 (referring to the methods of Example 11). The motor driving the rotating water discs in these experiments was powered by an external power supply. During the atomization and discharge of condensed water, the power of each motor driving the rotating water discs was measured using a conventional power meter (existing equipment). The motor power at different wind speeds is shown in Table 1, where the main fan speed is a percentage of the maximum wind speed.

[0063] Table 1 Motor power

[0064]

[0065] It can be seen that under low wind speed conditions, the motor for driving the swirling water disc of the present invention operates well. Under high wind speed conditions, the power of the motor for driving the swirling water disc of the present invention can be maintained within a reserved range. Compared with the structure without a water-gas separator (Comparative Example 1 and Comparative Example 2), the motor operates stably.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water-gas separation type drainage device, characterized in that: It includes a water vortex, a motor, and a drainage cavity; the water vortex is connected to the motor; the drainage cavity includes an air inlet and an air outlet; the water vortex is located between the air inlet and the air outlet; the motor is located inside or outside the drainage cavity; a water-gas separator is provided under the water vortex.

2. The water-gas separation type drainage device according to claim 1, characterized in that: The water-gas separation element is an annular structure; part or all of the water-gas separation element is located in the drainage cavity.

3. The water-gas separation type drainage device according to claim 2, characterized in that: The outer wall of the water-gas separation component is provided with a recovery component.

4. The water-gas separation type drainage device according to claim 3, characterized in that: The recovery component is sealed and connected to the inner wall of the drainage cavity to form a return water temporary storage cavity.

5. The water-gas separation type drainage device according to claim 4, characterized in that: The return water temporary storage chamber is provided with a drain pipe.

6. The water-gas separation type drainage device according to claim 2, characterized in that: The inner wall of the water-gas separation element is an arc-shaped structure.

7. The water-gas separation type drainage device according to claim 1, characterized in that: The water swirling tray is placed horizontally.

8. The water-gas separation type drainage device according to claim 1, characterized in that: A collision grid is provided on the outer side of the swirling water disc and in the drainage cavity.

9. A condensate discharge device, characterized in that: It comprises a condensate collecting chamber, a water supply device and the water-gas separation type drainage device according to claim 1; the water supply device comprises a water supply pipe; one end of the water supply pipe is located above the vortex disk.

10. A condensing gas water heater, characterized in that: It includes the condensed water discharge device as described in claim 9; the water-gas separation type drainage device is located inside or outside the condensing gas water heater.

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