Water supply device and gas water heating apparatus

Abstract

The application provides a water supply device and a gas water heater, the water supply device comprising: a water heating unit having a water inlet end and a water outlet end; an ozone supply unit for making the water output by the water supply device contain ozone; and a circulation control mechanism cooperating with the ozone supply unit, the circulation control mechanism being configured to make part of the ozone-containing water flowing out of the ozone supply unit flow into the ozone supply unit again. The water supply device and the gas water heater of the application make part of the ozone-containing water output by the ozone supply unit flow into the ozone supply unit again through the circulation control mechanism, so as to improve the ozone concentration in the ozone-containing water.

Description

Technical Field

[0001] This invention relates to the field of water heater technology, and more particularly to a water supply device and a gas-fired water heating equipment. Background Technology

[0002] As people's living standards improve, they are paying increasing attention to the health and hygiene functions of their water-using appliances. Because ozone has strong oxidizing properties, it is highly effective in sterilization, disinfection, and pesticide residue removal. Therefore, integrating ozone sterilization into hot water supply systems has become one of the new development trends for the future.

[0003] Therefore, the present invention provides a water supply device with an ozone generator and a gas-fired hot water equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a water supply device to increase the ozone concentration in the outlet water of the water supply device.

[0005] Another objective of this invention is to provide a gas-fired water heater that combines hot water and sterilization functions, making it more versatile and adaptable to different water usage conditions under different operating modes of gas-fired water heaters.

[0006] The above-mentioned objectives of the present invention can be achieved by the following technical solutions:

[0007] This invention provides a water supply device, comprising:

[0008] The water heating unit has an inlet and an outlet.

[0009] An ozone supply unit for making the water output by the water supply device contain ozone;

[0010] A circulation control mechanism in conjunction with the ozone supply unit is configured to allow a portion of the ozone-containing water that flows out of the ozone supply unit to flow back into the ozone supply unit.

[0011] In an embodiment of the present invention, a bypass branch is included that can be connected to the water inlet and the water outlet. The bypass branch is arranged in parallel with the water heating unit, and the ozone supply unit can supply ozone to the bypass branch.

[0012] In an embodiment of the present invention, the water supply device is a gas-fired hot water supply device, the water heating unit includes a heat exchanger, the gas-fired hot water supply device has an inlet pipe and an outlet pipe, the inlet end of the heat exchanger is connected to the inlet pipe, and the outlet end of the heat exchanger is connected to the outlet pipe; the bypass branch is arranged in parallel with the heat exchanger.

[0013] In an embodiment of the present invention, the circulation control mechanism is a circulation pump connected in parallel with the ozone supply unit, so that a portion of the ozone-containing water flowing out of the ozone supply unit is returned to the ozone supply unit through the circulation pump.

[0014] In an embodiment of the present invention, the circulation control mechanism includes a return water path arranged in parallel with the ozone supply unit and a first flow distribution mechanism, wherein the first flow distribution mechanism causes a portion of the ozone-containing water flowing out of the ozone supply unit to return to the ozone supply unit through the return water path.

[0015] In an embodiment of the present invention, the circulation control mechanism is a circulation pump connected in parallel with the ozone supply unit, and the bypass branch includes a bypass water path with the ozone supply unit and a return water path connected in parallel with the ozone supply unit, and the circulation pump is located on the return water path.

[0016] In an embodiment of the present invention, the bypass branch further includes a first flow distribution mechanism, which can regulate the flow rate of ozone-containing water flowing into the return water path.

[0017] In an embodiment of the present invention, the bypass branch includes a bypass water path with the ozone supply unit, a return water path connected in parallel with the ozone supply unit, and a first flow distribution mechanism. The circulation control mechanism includes the return water path and the first flow distribution mechanism. The first flow distribution mechanism enables a portion of the ozone-containing water flowing out of the ozone supply unit to return to the ozone supply unit through the return water path.

[0018] In an embodiment of the present invention, the first flow distribution mechanism is a flow control valve disposed on the return water path, or the first flow distribution mechanism is a flow three-way valve, wherein the flow three-way valve is connected at the connection between the inlet end of the return water path and the outlet end of the bypass water path, the first end of the flow three-way valve is connected to the inlet end of the return water path, the second end of the flow three-way valve is connected to the outlet end of the bypass water path, and the third end of the flow three-way valve is connected to the outlet end of the bypass branch.

[0019] In an embodiment of the present invention, the flow rate of ozone-containing water returning to the ozone supply unit through the circulation control mechanism is less than the inlet flow rate supplied to the bypass water path.

[0020] In an embodiment of the present invention, the ozone supply unit is an electrolyzed water ozone generator installed on the bypass water line.

[0021] In an embodiment of the present invention, the ozone supply unit includes an electrolytic air ozone generator and a venturi structure, wherein the electrolytic air ozone generator can supply ozone to the venturi structure, and the venturi structure is disposed on the bypass water path.

[0022] In an embodiment of the present invention, the Venturi structure has a water pipe and a vent pipe connected together, the water pipe being connected to the bypass water path, and the vent pipe being connected to the electrolytic air ozone generator.

[0023] In an embodiment of the present invention, the water supply device further includes a second flow distribution mechanism, which can adjust the water supplied to the water supply device to the water heating unit and / or the bypass branch.

[0024] In an embodiment of the present invention, the inlet water flow supplied to the bypass branch through the second flow distribution mechanism is less than the inlet water flow supplied to the water heating unit.

[0025] In an embodiment of the present invention, the ratio of the inflow rate in the bypass branch to the total inflow rate supplied to the water supply device is 0.15 to 0.4.

[0026] In an embodiment of the present invention, the second flow distribution mechanism is a three-way flow valve, wherein the first end of the three-way flow valve is connected to the inlet end of the bypass branch, the second end of the three-way flow valve is connected to the inlet end of the water supply device, and the third end of the three-way flow valve is connected to the inlet end of the water heating unit; or, the second flow distribution mechanism is a flow control valve disposed on the inlet end of the bypass branch.

[0027] The present invention also provides a gas-fired hot water device, including the water supply device as described above.

[0028] In embodiments of the present invention, the gas-fired water heater has at least two operating states, wherein,

[0029] The first operating state is: when the ozone supply unit is turned off, the gas-fired water heater is used to supply hot water to the user;

[0030] The second operating state is as follows: when the ozone supply unit is activated, the gas-fired water heater is used to supply users with hot water containing ozone.

[0031] The features and advantages of the water supply device and gas-fired hot water equipment of the present invention are as follows:

[0032] I. The water supply device of the present invention supplies water to the inlet of a water heating unit. The water flows into the water heating unit and is heated therein before flowing out from its outlet. At the same time, an ozone supply unit provides ozone to the water supply device, so that the water output from each outlet of the water supply device contains ozone, thereby achieving the effects of sterilization, disinfection, removal of pesticide residues, and removal of pipe odors. In addition, the present invention sets up a circulation control mechanism so that part of the ozone-containing water supplied by the ozone supply unit is recycled again within the ozone supply unit, thereby increasing the ozone concentration in the water output from each outlet of the water supply device.

[0033] Second, the present invention, through the design of a bypass branch, allows the ozone-containing water supplied by the ozone supply unit to flow out through the bypass branch and converge with the water flow heated by the water heating unit before being discharged from each outlet of the water supply device. The ozone-containing water supplied by the ozone supply unit does not pass through the water heating unit, effectively avoiding the problem of reduced ozone concentration in the water discharged from the water supply device due to heat. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the first embodiment of the circulation control mechanism of the water supply device of the present invention.

[0036] Figure 2 This is a schematic diagram of the second embodiment of the circulation control mechanism of the first embodiment of the water supply device of the present invention.

[0037] Figure 3 This is a schematic diagram of the third embodiment of the circulation control mechanism of the first embodiment of the water supply device of the present invention.

[0038] Figure 4 This is a schematic diagram of the first embodiment of the circulation control mechanism of the second embodiment of the water supply device of the present invention.

[0039] Figure 5 This is a schematic diagram of the second embodiment of the circulation control mechanism of the water supply device of the present invention.

[0040] Figure 6 This is a schematic diagram of the third embodiment of the circulation control mechanism of the second embodiment of the water supply device of the present invention.

[0041] Figure 7 This is a schematic diagram of the fourth embodiment of the circulation control mechanism of the second embodiment of the water supply device of the present invention.

[0042] Figure 8 This is a schematic diagram of the fifth embodiment of the circulation control mechanism of the second embodiment of the water supply device of the present invention.

[0043] Figure 9 This is a schematic diagram of the sixth embodiment of the circulation control mechanism of the second embodiment of the water supply device of the present invention.

[0044] Figure 10 This is a schematic diagram of the first embodiment of the circulation control mechanism of the third embodiment of the water supply device of the present invention.

[0045] Figure 11 This is a schematic diagram of the second embodiment of the circulation control mechanism of the third embodiment of the water supply device of the present invention.

[0046] Figure 12 This is a schematic diagram of the third embodiment of the circulation control mechanism of the water supply device of the present invention.

[0047] Figure 13 This is a schematic diagram of the fourth embodiment of the circulation control mechanism of the third embodiment of the water supply device of the present invention.

[0048] Figure 14 This is a schematic diagram of the fifth embodiment of the circulation control mechanism of the third embodiment of the water supply device of the present invention.

[0049] Figure 15 This is a schematic diagram of the sixth embodiment of the circulation control mechanism of the third embodiment of the water supply device of the present invention.

[0050] Figure 16 This is a schematic diagram of the structure of an embodiment of the ozone supply unit of the water supply device of the present invention combined with the circulation control mechanism of the first embodiment.

[0051] Figure 17a and Figure 17b This is a schematic diagram of the combination of an ozone supply unit of the water supply device of the present invention and a circulation control mechanism of a second embodiment.

[0052] Figure 18a and Figure 18b This is a schematic diagram of the combination of an ozone supply unit of the water supply device of the present invention and a circulation control mechanism of a third embodiment.

[0053] Figure 19 This is a schematic diagram of an embodiment of the water supply device of the present invention, which includes a second flow distribution mechanism.

[0054] Figure 20 This is a schematic diagram of another embodiment of the water supply device of the present invention, which includes a second flow distribution mechanism.

[0055] Figure labels and descriptions:

[0056] 1. Water heating unit; 11. Water inlet; 12. Water outlet; 13. Bypass branch; 131. Bypass water path; 132. Return water path; 133. First flow distribution mechanism; 14. Water inlet connection pipe; 15. Water outlet connection pipe; 2. Ozone supply unit; 21. Electrolytic air ozone generator; 22. Venturi structure; 221. Water pipe; 222. Air pipe; 3. Circulation control mechanism; 31. Circulation pump; 4. Second flow distribution mechanism; 10. Water supply device; 101. Water outlet point; 102. Water inlet pipe; 103. Water outlet pipe. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] It should be noted that in the description of this invention, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no sequential order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "at least one" means one or more, and "a plurality of" means two or more. The use of the term "may" here is intended to indicate that any attribute described that is included in "may" is optional.

[0059] Implementation Method 1

[0060] like Figures 1 to 15 As shown, the present invention proposes a water supply device 10, comprising: a water heating unit 1 having an inlet end 11 and an outlet end 12; an ozone supply unit 2 for making the water output by the water supply device 10 contain ozone; and a circulation control mechanism 3 cooperating with the ozone supply unit 2, the circulation control mechanism 3 being configured to cause a portion of the ozone-containing water flowing out of the ozone supply unit 2 to flow back into the ozone supply unit 2.

[0061] In this invention, the water supply device 10 has an inlet pipe 102 and an outlet pipe 103. The inlet end 11 of the water heating unit 1 can be connected to the inlet pipe 102 through the inlet connecting pipe 14, and the outlet end of the water heating unit 1 can be connected to the outlet pipe 103 through the outlet connecting pipe 15.

[0062] The water supply device 10 of the present invention supplies water to the water inlet 11 of the water heating unit 1. The water flows into the water heating unit 1, is heated therein, and then flows out from its outlet 12. See [reference needed]. Figures 1 to 15 As indicated by the arrows, ozone is simultaneously supplied to the water supply device 10 via the ozone supply unit 2, ensuring that the water output from each outlet 101 of the water supply device 10 contains ozone, thereby achieving effects such as sterilization, disinfection, removal of pesticide residues, and removal of pipe odors. Furthermore, by incorporating a circulation control mechanism 3, a portion of the ozone-containing water supplied by the ozone supply unit 2 is recycled within the ozone supply unit 2, thereby increasing the ozone concentration in the water output from each outlet 101 of the water supply device 10. In this invention, the outlet 101 can be a faucet or other water dispensing device.

[0063] In a feasible embodiment of the first embodiment of the present invention, such as Figure 2 As shown, the ozone supply unit 2 can supply ozone to the water inlet 11 of the water heating unit 1, that is, to the water inlet connection pipe 14. After water flows into the water inlet pipe 102 of the water supply device 10, the ozone provided by the ozone supply unit 2 will dissolve in the water and then flow into the water heating unit 1. Due to the heat effect of the water heating unit 1, the ozone content in the water will inevitably decrease. In order to ensure that the ozone concentration in the water outlet of the water supply device 10 remains unchanged or increases, the present invention uses the circulation control mechanism 3 to return some of the ozone-containing water provided by the ozone supply unit 2 to the ozone supply unit 2, thereby increasing the ozone content in the water inlet 11 of the water heating unit 1 and avoiding the risk of a decrease in the ozone concentration in the water outlet of the water supply device 10 due to the heat effect of the water heating unit 1.

[0064] In another feasible embodiment of the first embodiment of the present invention, such as Figure 3As shown, the ozone supply unit 2 can supply ozone to the water flowing out of the outlet 12 of the self-water heating unit 1, that is, to the outlet connection pipe 15. After the water flow is introduced into the inlet pipe 102 of the water supply device 10, it flows into the water heating unit 1 through the inlet connection pipe 14 for heating. The heated water flows out from the outlet 12. The ozone provided by the ozone supply unit 2 will dissolve in the water flowing out of the outlet connection pipe 15. Through the action of the circulation control mechanism 3, the present invention will return part of the ozone-containing water provided by the ozone supply unit 2 to the ozone supply unit 2, which increases the ozone content in the water supplied by the ozone supply unit 2 to the outlet connection pipe 15, thereby relatively increasing the ozone concentration in the water output from each outlet point 101 of the self-water supply device 10.

[0065] In a preferred embodiment of the first embodiment of the present invention, such as Figure 1 As shown, the water supply device 10 also includes a bypass branch 13 connected to the inlet end 11 and outlet end 12 of the water heating unit 1. The ozone supply unit 2 can supply ozone into the bypass branch 13. In this embodiment, by setting the bypass branch 13, the ozone supply unit 2 supplies ozone into the bypass branch 13, so that the ozone-containing water flows into the water flowing out of the outlet end 12 of the water heating unit 1 through the bypass branch 13. After mixing, it is discharged from each outlet point 101 of the water supply device 10. The ozone-containing water supplied by the ozone supply unit 2 does not pass through the water heating unit 1, effectively avoiding the problem of the ozone concentration in the water discharged from the water supply device 10 decreasing due to heat.

[0066] In this invention, the water supply device 10 can be a gas-fired hot water supply device, the water heating unit 1 includes a heat exchanger, the gas-fired hot water supply device has an inlet pipe 102 and an outlet pipe 103, the inlet end of the heat exchanger is connected to the inlet pipe 102, and the outlet end of the heat exchanger is connected to the outlet pipe 103; the bypass branch 13 is arranged in parallel with the heat exchanger.

[0067] The hot water temperature provided by the gas-fired hot water supply device is usually between 20℃ and 30℃. When ozone-containing water flows into the heat exchanger of the gas-fired hot water supply device through the inlet 11, the ozone concentration in the ozone-containing water will decrease due to the temperature effect. This will lead to a decrease in the ozone concentration in the water discharged from each outlet 101 of the water supply device 10, thus affecting the effects of sterilization, disinfection, and pesticide residue removal. This preferred embodiment utilizes the design of the bypass branch 13 to allow the ozone-containing water to bypass the water heating unit 1, that is, to prevent the ozone-containing water from flowing through the heat exchanger. This effectively avoids the risk of a decrease in ozone content in the water discharged from the water supply device 10 due to excessively high heating temperature of the heat exchanger. In addition, it also further avoids the risk of damage to the water tank caused by the long-term flow of ozone-containing water through the heat exchanger.

[0068] In this invention, the temperature of the water supplied by the water heating unit 1 can be greater than or equal to the temperature of the ozone-containing water supplied by the ozone supply unit 2. Figure 1 In a preferred embodiment, since the ozone supply unit 2 supplies ozone to the bypass branch 13, and the bypass branch 13 is connected in parallel with the water heating unit 1, the ozone concentration in the water discharged from each outlet 101 of the water supply device 10 will not be affected regardless of how the heating temperature of the water heating unit 1 changes. The water supply device 10 of the present invention employs... Figure 1 The preferred embodiment not only avoids the problem of reduced ozone concentration in the effluent, but also increases the ozone concentration in the effluent through the circulation control mechanism 3.

[0069] According to one embodiment of the present invention, such as Figures 1 to 9 As shown, the circulation control mechanism 3 is a circulation pump 31 connected in parallel with the ozone supply unit 2, so that a portion of the ozone-containing water flowing out of the ozone supply unit 2 will flow back to the ozone supply unit 2 through the circulation pump 31. By setting up the circulation pump 31, the present invention can make part of the ozone-containing water supplied by the ozone supply unit 2 to the inlet connection pipe 14, the outlet connection pipe 15, or the bypass branch 13 flow back to the ozone supply unit 2 and flow again through the ozone supply unit 2 before flowing into the inlet end 11, the outlet end 12, or the inlet end of the bypass branch 13, thereby improving the solubility and concentration of ozone in the ozone-containing water.

[0070] According to another embodiment of the present invention, such as Figures 10 to 15 As shown, the circulation control mechanism 3 includes a return water path 132 connected in parallel with the ozone supply unit and a first flow distribution mechanism 133. The first flow distribution mechanism 133 causes a portion of the ozone-containing water flowing out of the ozone supply unit 2 to return to the ozone supply unit 2 through the return water path 132. By setting up the return water path 132 and the first flow distribution mechanism 133, the present invention can cause a portion of the ozone-containing water supplied by the ozone supply unit 2 to the inlet connection pipe 14, the outlet connection pipe 15, or the bypass branch 13 to return to the ozone supply unit 2 and flow through the ozone supply unit 2 again before flowing into the inlet end 11, the outlet end 12, or the inlet end of the bypass branch 13, thereby improving the solubility and concentration of ozone in the ozone-containing water.

[0071] The following is a specific example of ozone supply unit 2 supplying ozone to bypass branch 13.

[0072] like Figure 1As shown, the bypass branch 13 includes a bypass water path 131 with an ozone supply unit 2 and a return water path 132 connected in parallel with the ozone supply unit 2. The circulation pump 31 is installed on the return water path 132. In this invention, the circulation flow rate can be adjusted by regulating the voltage of the circulation pump 31.

[0073] Furthermore, such as Figure 4 As shown, the bypass branch 13 also includes a first flow distribution mechanism 133, which can regulate the flow rate of ozone-containing water flowing into the return water path 132. This invention employs a first flow distribution mechanism 133 located at the connection point between the outlet of the ozone supply unit 2 and the return water path 132. This first flow distribution mechanism 133 is used to regulate the circulating flow rate, and / or, in conjunction with the circulating pump 31, it is used to regulate the circulating flow rate.

[0074] According to another embodiment of the present invention, such as Figures 10 to 15 As shown, the bypass branch 13 includes a bypass water path 131 with an ozone supply unit 2, a return water path 132 connected in parallel with the ozone supply unit 2, and a first flow distribution mechanism 133. The circulation control mechanism 3 includes the return water path 132 and the first flow distribution mechanism 133. The first flow distribution mechanism 133 enables a portion of the ozone-containing water flowing out of the ozone supply unit 2 to return to the ozone supply unit 2 through the return water path 132.

[0075] In one feasible embodiment of the first flow distribution mechanism 133 of the present invention Figures 7 to 9 ,as well as Figures 13 to 15 As shown, the first flow distribution mechanism 133 is a flow control valve installed on the return water path 132.

[0076] In another feasible embodiment of the first flow distribution mechanism 133 of the present invention, such as Figures 4 to 6 ,as well as Figures 10 to 12 As shown, the first flow distribution mechanism 133 is a three-way flow valve, which... Figure 4 and Figure 10 For example, the flow three-way valve is connected at the connection between the inlet end of the return water passage 132 and the outlet end of the bypass water passage 131. The first end of the flow three-way valve is connected to the inlet end of the return water passage 132, the second end of the flow three-way valve is connected to the outlet end of the bypass water passage 131, and the third end of the flow three-way valve is connected to the outlet end of the bypass branch 13.

[0077] After water flows into the inlet pipe 102 of the water supply device 10, a portion of the water flows into the inlet end 11 of the water heating unit 1, is heated by the water heating unit 1, and flows out from its outlet end 12. The other portion of the water flows into the bypass branch 13, and after passing through the ozone supply unit 2 (e.g., an electrolytic water ozone generator), it forms ozone-containing water. When the ozone-containing water flows through the first flow distribution mechanism 133, a portion of the ozone-containing water is regulated to the return water path 132, and then flows back to the inlet end of the bypass water path 131. In this embodiment, by setting the first flow distribution mechanism 133, a portion of the ozone-containing water supplied by the ozone supply unit 2 to the bypass branch 13 can be returned to the inlet end of the bypass water path 131, thereby increasing the solubility and concentration of ozone in the ozone-containing water.

[0078] Furthermore, in this invention, the flow rate of ozone-containing water returning to the ozone supply unit 2 via the circulation control mechanism 3 is less than the inlet flow rate supplied to the bypass water path 131, so as to regulate the flow rate of ozone-containing water returning to the ozone supply unit 2 and achieve the purpose of optimal ozone production.

[0079] In one feasible embodiment of the present invention, such as Figure 1 , Figure 4 , Figure 7 , Figure 10 ,as well as Figure 13 As shown, the ozone supply unit 2 is an electrolyzed water ozone generator installed on the bypass water path 131. After water flows into the inlet pipe 102 of the water supply device 10, part of the inlet water flows into the inlet end 11 of the water heating unit 1, and after being heated by the water heating unit 1, it flows out from its outlet end 12. The other part of the inlet water flows into the bypass branch 13, and after passing through the electrolyzed water ozone generator, it forms water containing ozone. Part of this ozone-containing water will flow back to the inlet end of the bypass water path 131 through the circulation control mechanism 3 (e.g., circulation pump 31), and flow back into the electrolyzed water ozone generator. This increases the water flow rate through the electrolyzed water ozone generator. On the one hand, this reduces the problem of reduced ozone production caused by the heating of the electrolyzed water ozone generator. On the other hand, because the water flow rate through the electrolyzed water ozone generator is increased, the solubility of ozone in water is relatively increased. Therefore, the ozone concentration in the water flowing out of each outlet point 101 of the water supply device 10 is increased. Of course, the ozone generator for water electrolysis in this embodiment can also be installed on the inlet connection pipe 14 or the outlet connection pipe 15, such as... Figure 2-3 , Figure 5-6 , Figure 8-9 , Figure 11-12 ,as well as Figure 14-15 As shown.

[0080] In another feasible embodiment of the invention, such as Figure 16 , Figure 17a , Figure 17b, Figure 18a ,as well as Figure 18b As shown, the ozone supply unit 2 includes an electrolytic air ozone generator 21 and a venturi structure 22. The electrolytic air ozone generator 21 supplies ozone to the venturi structure 22, which is installed on the bypass water passage 131. Alternatively, the venturi structure 22 of the ozone supply unit 2 in this embodiment can also be installed on the inlet water connection pipe 14 or the outlet water connection pipe 15. The following description uses the example of the venturi structure 22 being installed on the bypass water passage 131.

[0081] Specifically, the Venturi structure 22 has a connected water pipe 221 and a vent pipe 222. The water pipe 221 is connected to the bypass water passage 131, and the vent pipe 222 is connected to the electrolytic air ozone generator 21. The water pipe 221 has a diameter reduction structure along the direction of water flow. When water is introduced into the bypass water passage 131, the dynamic pressure of the water reaches its maximum value and the static pressure reaches its minimum value at the narrowest point of the water pipe 221. The water velocity increases due to the reduction in the cross-sectional area of ​​the water pipe 221, thereby generating a pressure difference to provide an external suction force for the ozone gas transported in the vent pipe 222, realizing the rapid dissolution of ozone and water, thereby generating water containing ozone, which flows out from the outlet of the bypass water passage 131.

[0082] According to one method of application of the present invention, such as Figure 19 and Figure 20 As shown, the water supply device 10 also includes a second flow distribution mechanism 4, which can adjust the water supplied to the water supply device 10 to the water heating unit 1 and / or the bypass branch 13. By setting the second flow distribution mechanism 4, this invention enables the water entering the water supply device 10 through the inlet pipe 102 to be adjusted as needed to the water heating unit 1 and / or the bypass branch 13. Under the condition that the inlet flow rate of the water supply device 10 is constant, the amount of water flowing through the ozone supply unit 2 can be effectively controlled, thereby maximizing the ozone production of the ozone supply unit 2 and the ozone content in the ozone-containing water.

[0083] This invention only shows a schematic diagram of the second flow distribution mechanism 4 located on the water supply device of the circulation control mechanism in the first embodiment. Those skilled in the art will understand that, Figure 4 , Figure 7 , Figure 10 ,as well as Figure 13 The water supply device shown may also be equipped with the second flow distribution mechanism 4, which is not shown in the attached figure here.

[0084] In this invention, the inlet water flow rate supplied to the bypass branch 13 through the second flow distribution mechanism 4 is less than the inlet water flow rate supplied to the water heating unit 1. Since the ozone concentration is relatively higher when the flow rate of water flowing into the inlet pipe 102 of the water supply device 10 is constant, the higher the proportion of inlet water in the bypass branch 13, the higher the ozone concentration. However, the higher the temperature inside the water heating unit 1 at this time, the lower its lifespan will be. Therefore, in order to ensure the maximum ozone production of the ozone supply unit 2 and to keep the water heating unit 1 working normally, the ratio of the inlet water flow rate in the bypass branch 13 to the total inlet water supplied to the water supply device 10 is 0.15 to 0.4.

[0085] In one feasible embodiment of the second flow distribution mechanism 4, such as Figure 19 As shown, the second flow distribution mechanism is a flow three-way valve. The first end of the flow three-way valve is connected to the water inlet of the bypass branch 13, the second end of the flow three-way valve is connected to the water inlet pipe 102 of the water supply device, and the third end of the flow three-way valve is connected to the water inlet 11 of the water heating unit 1.

[0086] In another feasible embodiment of the second flow distribution mechanism 4, such as Figure 20 As shown, the second flow distribution mechanism 4 is a flow control valve installed at the inlet end of the bypass branch 13. By setting the flow control valve, the flow rate of water flowing into the bypass branch 13 can be adjusted, thereby controlling the ozone production and ozone solubility of the ozone supply unit 2.

[0087] Implementation Method 2

[0088] like Figures 1 to 20 As shown, the present invention also provides a gas-fired hot water device, including a water supply device as described in Embodiment 1. The specific structure, working principle, and beneficial effects of this water supply device will not be elaborated further here.

[0089] The gas-fired water heater of the present invention uses a circulation control mechanism 3 to circulate a portion of the ozone-containing water supplied by the ozone supply unit 2 within the ozone supply unit 2, thereby increasing the ozone concentration in the ozone-containing water.

[0090] The above are merely a few embodiments of the present invention. Those skilled in the art can make various modifications or variations to the embodiments of the present invention based on the content disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A water supply device, the water supply device having an inlet pipe and an outlet pipe, characterized in that, The water supply device includes: A water heating unit has an inlet end and an outlet end, the inlet end being connected to an inlet pipe and the outlet end being connected to an outlet pipe; an ozone supply unit for making the water output by the water supply device contain ozone; the ozone supply unit can supply ozone to a bypass branch connected between the inlet end and the outlet end, so that the ozone-containing water flows into the water flowing out from the outlet end; wherein, the bypass branch includes a bypass water path and a return water path arranged in parallel; A circulation control mechanism in conjunction with the ozone supply unit, the circulation control mechanism including the return water path and a circulation pump disposed on the return water path, the circulation control mechanism being configured to cause a portion of the ozone-containing water flowing out of the ozone supply unit to return to the inlet end of the bypass water path through the circulation pump.

2. The water supply device as described in claim 1, characterized in that, The water supply device is a gas-fired hot water supply device. The water heating unit includes a heat exchanger. The gas-fired hot water supply device has an inlet pipe and an outlet pipe. The inlet end of the heat exchanger is connected to the inlet pipe, and the outlet end of the heat exchanger is connected to the outlet pipe. The bypass branch is connected in parallel with the heat exchanger.

3. The water supply device as described in claim 1, characterized in that, The bypass branch includes a bypass water path with the ozone supply unit and a return water path connected in parallel with the ozone supply unit.

4. The water supply device as described in claim 3, characterized in that, The bypass branch also includes a first flow distribution mechanism, which can regulate the flow rate of ozone-containing water flowing into the return water path.

5. The water supply device as described in claim 4, characterized in that, The first flow distribution mechanism is a flow control valve installed on the return water line, or the first flow distribution mechanism is a flow three-way valve. The flow three-way valve is connected at the connection between the inlet end of the return water line and the outlet end of the bypass water line. The first end of the flow three-way valve is connected to the inlet end of the return water line, the second end of the flow three-way valve is connected to the outlet end of the bypass water line, and the third end of the flow three-way valve is connected to the outlet end of the bypass branch.

6. The water supply device as described in claim 3 or 4, characterized in that, The flow rate of ozone-containing water returning to the ozone supply unit through the circulation control mechanism is less than the inlet flow rate supplied to the bypass water path.

7. The water supply device as described in claim 3 or 4, characterized in that, The ozone supply unit is an electrolyzed water ozone generator installed on the bypass water line.

8. The water supply device as described in claim 3 or 4, characterized in that, The ozone supply unit includes an electrolytic air ozone generator and a venturi structure. The electrolytic air ozone generator can supply ozone to the venturi structure, which is located on the bypass water path.

9. The water supply device as described in claim 8, characterized in that, The Venturi structure has a connected water pipe and a vent pipe, the water pipe being connected to the bypass water line, and the vent pipe being connected to the electrolytic air ozone generator.

10. The water supply device as claimed in claim 1, characterized in that, The water supply device further includes a second flow distribution mechanism, which can adjust the water supplied to the water supply device to the water heating unit and / or the bypass branch.

11. The water supply device as claimed in claim 10, characterized in that, The inlet water flow supplied to the bypass branch through the second flow distribution mechanism is less than the inlet water flow supplied to the water heating unit.

12. The water supply device as claimed in claim 11, characterized in that, The ratio of the inflow rate in the bypass branch to the total inflow rate supplied to the water supply device is 0.15 to 0.

4.

13. The water supply device as claimed in claim 10, characterized in that, The second flow distribution mechanism is a three-way flow valve, the first end of which is connected to the inlet of the bypass branch, the second end of which is connected to the inlet of the water supply device, and the third end of which is connected to the inlet of the water heating unit; or, the second flow distribution mechanism is a flow control valve installed on the inlet of the bypass branch.

14. A gas-fired hot water device, characterized in that, Includes the water supply device as described in any one of claims 1 to 13.

15. The gas-fired hot water equipment as described in claim 14, characterized in that, The gas-fired water heater has at least two operating states, wherein... The first operating state is: when the ozone supply unit is turned off, the gas-fired water heater is used to supply hot water to the user; The second operating state is as follows: when the ozone supply unit is activated, the gas-fired water heater is used to supply users with hot water containing ozone.

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