Gas water heater with automatic condensate water treatment structure

Abstract

The utility model relates to a gas water heater with an automatic condensate water treatment structure, which comprises a burner for heating a main heat exchanger and a secondary heat exchanger arranged above the main heat exchanger, and a water retaining piece for receiving condensate water is arranged between the main heat exchanger and the secondary heat exchanger. A water collecting pipe, a water seal and a condensate water blocking safety device are omitted from being installed in the gas water heater, the product cost is reduced, and a user does not need to additionally install a condensate water drainage pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of household gas equipment, in particular to a gas water heater with an automatic condensed water processing structure. Background Art

[0002] Existing household condensing gas water heaters have a dedicated condensate collection and discharge system, including an internal water collection pipe, a water seal, a condensate blocking safety device, and an external condensate drain pipe when installed in the user's home.

[0003] Therefore, the internal water collecting pipe, condensate blockage safety device, etc. occupy the internal space of the gas water heater and are costly, and users need to connect an external condensate drain pipe, which is troublesome for users to install. Utility Model Content

[0004] The purpose of the utility model is to provide a gas water heater with an automatic condensate processing structure. By providing a water retaining member between the main heat exchanger and the secondary heat exchanger for receiving condensate, the installation of a water collecting pipe, a water seal, and a condensate blocking safety device inside the gas water heater is eliminated, thereby reducing product costs. Users do not need to install an additional condensate drain pipe.

[0005] The purpose of the utility model is achieved in this way:

[0006] A gas water heater with an automatic condensed water processing structure comprises a burner for heating a main heat exchanger and a secondary heat exchanger arranged above the main heat exchanger, wherein a water retaining member for receiving condensed water is arranged between the main heat exchanger and the secondary heat exchanger.

[0007] The water retaining part comprises a retaining plate, on which a raised water retaining block is arranged, and a plurality of the water retaining blocks are arranged on the retaining plate in an interval manner.

[0008] A vent hole for the entry of flue gas is provided on the baffle plate corresponding to each water retaining block. The water retaining block includes a water retaining surface covering the vent hole and a guide slope. One end of the guide slope is connected to the water retaining surface, and the other end of the guide slope is connected to the baffle. The height of one end of the guide slope close to the water retaining surface is greater than the height of the other end of the guide slope close to the baffle, thereby increasing the collection area for collecting condensed water and the contact area between the baffle plate and the high-temperature flue gas. The high-temperature flue gas passes through the vent hole and contacts each surface of the water retaining block, thereby evaporating the condensed water dripping onto the water retaining member.

[0009] The bottom wall of the baffle is provided with a boss and a depression forming a liquid-containing groove, a plurality of water retaining blocks are arranged on the boss, and the liquid-containing groove is arranged around the outer peripheral side of the boss.

[0010] The boss is provided with a guiding surface for guiding the liquid to enter the liquid containing groove.

[0011] The baffle is provided with a bending block for connecting the fastener.

[0012] The gas water heater with an automatic condensed water processing structure also includes a gas pipeline connected to the burner, and the gas pipeline is provided with a gas valve for switching on and off the gas source.

[0013] The gas water heater with an automatic condensed water processing structure also includes a water flow sensor arranged on a cold water inlet pipe, one end of the cold water inlet pipe is connected to a main heat exchanger, and a connecting pipe is arranged between the main heat exchanger and the secondary heat exchanger.

[0014] A thermostat is provided on one side of the secondary heat exchanger.

[0015] The gas water heater with an automatic condensed water processing structure also includes a temperature sensor arranged on a hot water outlet pipe, one end of which is connected to a secondary heat exchanger.

[0016] When the temperature detected by the thermostat or temperature sensor is abnormal, the gas valve can be disconnected in time.

[0017] The beneficial effects of the utility model are as follows:

[0018] Cold water passes through the cold water inlet pipe and flows through the water flow sensor into the main heat exchanger. The water flow sensor sends the water flow signal to the control system. After the control system completes the relevant procedures, it opens the gas valve, and the gas is transported to the burner for combustion, generating high-temperature flue gas, which heats the water flowing through the main heat exchanger. The water in the main heat exchanger then enters the secondary heat exchanger through the connecting pipe, and then continues to heat the water flowing through the secondary heat exchanger through the waste heat of the main heat exchanger and the water retaining member. Finally, the hot water flows out through the hot water outlet pipe.

[0019] The control system includes a main control board, and the thermostat, the temperature sensor, and the water flow sensor are respectively conductively connected to the main control board.

[0020] The outlet water temperature of the main heat exchanger is relatively high and enters the secondary heat exchanger. The temperature difference between the secondary heat exchanger and the flue gas waste heat is relatively low, so only a small amount of condensed water or no condensed water is produced on the surface of the secondary heat exchanger.

[0021] If a small amount of condensed water drips, it will fall on the water retaining part, which is provided with a vent hole, and there is also a water retaining block above the vent hole, and there is a liquid storage groove on the water retaining part; the temperature of the flue gas passing through the water retaining part is still high, and the liquid on the water retaining part will be evaporated eventually, so there is no need to set up a condensed water collecting pipe and a drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the water circuit structure of a gas water heater according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of a gas water heater according to an embodiment of the utility model.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of a water retaining member according to an embodiment of the utility model.

[0025] Figure 4 It is a schematic diagram of the planar structure of a water retaining member according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figure 1-Figure 4 A gas water heater with an automatic condensed water processing structure includes a burner 2 for heating a main heat exchanger 1, and a secondary heat exchanger 3 arranged above the main heat exchanger 1, and a water retaining member 4 for receiving condensed water is provided between the main heat exchanger 1 and the secondary heat exchanger 3.

[0028] The water retaining member 4 comprises a retaining plate 5 , on which a raised water retaining block 6 is arranged. There are a plurality of water retaining blocks 6 , which are arranged on the retaining plate 5 at intervals.

[0029] In this embodiment, the plurality of water retaining blocks 6 are provided in two groups, and the plurality of water retaining blocks 6 in each group are arranged in a linear array.

[0030] A vent hole 7 for smoke to enter is provided on the baffle plate 5 corresponding to each water retaining block 6. The water retaining block 6 includes a water retaining surface 8 covering the vent hole 7 and a guide slope 9. One end of the guide slope 9 is connected to the water retaining surface 8, and the other end of the guide slope 9 is connected to the baffle plate 5. The height of one end of the guide slope 9 close to the water retaining surface 8 is greater than the height of the other end of the guide slope 9 close to the baffle plate 5.

[0031] In this embodiment, the high-temperature flue gas heats the secondary heat exchanger 3 through the vent hole 7 and evaporates the condensed water on the water retaining member 4. The water retaining member is provided so that the condensed water collected by the water retaining member can be automatically processed without affecting the high-temperature flue gas heating the secondary heat exchanger 3.

[0032] A boss 10 and a depression forming a liquid storage groove 11 are provided on the bottom wall of the baffle 5 . A plurality of water retaining blocks 6 are arranged on the boss 10 , and the liquid storage groove 11 is arranged around the outer peripheral side of the boss 10 .

[0033] In this embodiment, the height of the boss 10 is greater than the height of the liquid holding groove 11 . If too much condensed water is generated, the condensed water flows along the boss 10 into the liquid holding groove 11 .

[0034] The boss 10 is provided with a guide surface 12 for guiding the liquid to enter the liquid containing groove 11 .

[0035] The baffle plate 5 is provided with a bending block 13 for connecting a fastener.

[0036] In this embodiment, the bending block 13 is beneficial to increase the mechanical strength of the water retaining member 4, and the bending block 13 can fix the water retaining member 4 in the gas water heater. A bracket can be provided in the gas water heater, and the bending block 13 of the water retaining member 4 is fixedly connected to the bracket.

[0037] The gas water heater with an automatic condensed water processing structure also includes a gas pipeline 14 connected to the burner 2, and a gas valve 15 for switching on and off the gas source is provided on the gas pipeline 14.

[0038] The gas water heater with an automatic condensed water processing structure also includes a water flow sensor 17 arranged on the cold water inlet pipe 16, one end of the cold water inlet pipe 16 is connected to the main heat exchanger 1, and a connecting pipe 18 is provided between the main heat exchanger 1 and the secondary heat exchanger 3.

[0039] A temperature controller 19 is provided on one side of the secondary heat exchanger 3 .

[0040] The gas water heater with an automatic condensed water processing structure further includes a temperature sensor 21 arranged on a hot water outlet pipe 20 , and one end of the hot water outlet pipe 20 is connected to the secondary heat exchanger 3 .

[0041] A fan 22 is provided in the gas water heater body for exhausting waste gas and connected to a smoke exhaust pipe.

[0042] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas water heater with an automatic condensate treatment structure, comprising a burner (2) for heating a main heat exchanger (1), and a secondary heat exchanger (3) arranged above the main heat exchanger (1), characterized in that: A water retaining member (4) for receiving condensed water is provided between the main heat exchanger (1) and the secondary heat exchanger (3).

2. The gas water heater with automatic condensed water treatment structure according to claim 1, characterized in that: The water retaining member (4) comprises a retaining plate (5), on which a raised water retaining block (6) is provided, and a plurality of water retaining blocks (6) are provided, and the plurality of water retaining blocks (6) are arranged at intervals on the retaining plate (5).

3. The gas water heater with automatic condensed water treatment structure according to claim 2, characterized in that: A vent hole (7) for smoke to enter is provided on the baffle plate (5) corresponding to each water retaining block (6). The water retaining block (6) comprises a water retaining surface (8) covering the vent hole (7) and a guide inclined surface (9). One end of the guide inclined surface (9) is connected to the water retaining surface (8), and the other end of the guide inclined surface (9) is connected to the baffle plate (5). The height of the position of the one end of the guide inclined surface (9) close to the water retaining surface (8) is greater than the height of the position of the other end of the guide inclined surface (9) close to the baffle plate (5).

4. The gas water heater with automatic condensed water treatment structure according to claim 2, characterized in that: The bottom wall of the baffle plate (5) is provided with a boss (10) and a recess forming a liquid-containing groove (11); a plurality of water retaining blocks (6) are arranged on the boss (10); and the liquid-containing groove (11) is arranged around the outer peripheral side of the boss (10).

5. The gas water heater with automatic condensed water treatment structure according to claim 4, characterized in that: The boss (10) is provided with a guide surface (12) for guiding liquid to enter the liquid containing groove (11).

6. The gas water heater with automatic condensed water treatment structure according to claim 2, characterized in that: A bending block (13) for connecting a fastener is provided on the baffle (5).

7. The gas water heater with automatic condensed water treatment structure according to claim 1, characterized in that: It also includes a gas pipeline (14) connected to the burner (2), and a gas valve (15) for switching the gas source on and off is provided on the gas pipeline (14).

8. The gas water heater with automatic condensed water treatment structure according to claim 1, characterized in that: It also includes a water flow sensor (17) arranged on a cold water inlet pipe (16); one end of the cold water inlet pipe (16) is connected to the main heat exchanger (1); and a connecting pipe (18) is provided between the main heat exchanger (1) and the secondary heat exchanger (3).

9. The gas water heater with automatic condensed water treatment structure according to claim 1, characterized in that: A temperature controller (19) is provided on one side of the secondary heat exchanger (3).

10. The gas water heater with automatic condensed water treatment structure according to claim 1, characterized in that: It also includes a temperature sensor (21) arranged on the hot water outlet pipe (20); one end of the hot water outlet pipe (20) is connected to the secondary heat exchanger (3).

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