Gas distribution device, mold, water heater and control method

Abstract

The invention relates to the field of household appliances, and discloses a gas distribution device, a mold, a water heater and a control method. The gas distribution device can be suitable for gas water heaters with different powers, independent mold opening of the gas distribution device matched with the gas water heater with each load is not needed, and different gas distribution devices can be manufactured through one mold. The air distribution device comprises a body, an air channel, a nozzle cavity, at least two assembly structures and a plugging piece, the air channel comprises a main air channel, a first branch air channel and a second branch air channel, the main air channel and the first branch air channel can be communicated or disconnected, and the first branch air channel and the second branch air channel can be communicated or disconnected; the nozzle cavity comprises a first nozzle cavity and a second nozzle cavity which are adjacently arranged, and the at least two assembly structures are arranged on the inner wall of the joint of the first nozzle cavity and the second nozzle cavity at intervals; and the plugging piece is selectively matched and mounted with one of the assembly structures so as to adjust the number of the nozzles on the side walls of the first nozzle cavity and the second nozzle cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a gas distribution device, a mold, a water heater and a control method. Background Art

[0002] A gas water heater is a commonly used hot water preparation device in households. It works by using gas as fuel, transferring heat through combustion heating to cold water flowing through a heat exchanger to achieve the purpose of preparing hot water.

[0003] The gas distributor (or gas distributor rod) is one of the core components of the gas water heater, which is mainly used for gas distribution and can improve the combustion efficiency of the gas. The working principle of the gas distributor rod is that after the gas enters the main gas channel of the gas distributor rod, it flows out through the nozzles of the gas distributor rod and sprays toward the burner, thereby distributing the gas source for the burner combustion. The existing gas distributor rods are all manufactured by die casting and post-processing. However, the gas distributor rod structures adapted to gas water heaters of different powers are different. Therefore, it is necessary to open a separate mold for each structure of the gas distributor rod, which makes the manufacturing process of the gas distributor rod cumbersome and the manufacturing cost high. Summary of the invention

[0004] In view of this, the present invention provides an air distribution device, a mold, a water heater and a control method to solve the problems that each type of existing air distribution rod needs to be manufactured separately, the manufacturing process is cumbersome and the manufacturing cost is high.

[0005] In a first aspect, the present invention provides a gas separation device, comprising:

[0006] ontology;

[0007] An airway is arranged in the body, the airway comprises a main airway, a first sub-airway and a second sub-airway, the main airway and the first sub-airway can be connected or disconnected, and the first sub-airway and the second sub-airway can be connected or disconnected;

[0008] A nozzle chamber is disposed in the body, the nozzle chamber includes a first nozzle chamber and a second nozzle chamber that are adjacent to each other, the first nozzle chamber is communicated with the first branch air channel, and the second nozzle chamber is communicated with the second branch air channel;

[0009] At least two assembly structures are arranged at intervals on the inner wall of the intersection of the first nozzle cavity and the second nozzle cavity;

[0010] The blocking member can be selectively installed in cooperation with one of the assembly structures to adjust the number of nozzles on the side walls of the first nozzle chamber and the second nozzle chamber.

[0011] Beneficial effect: The gas separation device of the present invention is provided with at least two assembly structures inside the main body, and at least two assembly results are arranged at intervals on the inner wall of the intersection of the first nozzle cavity and the second nozzle cavity. The sealing piece can be selectively installed in conjunction with one of the assembly structures. The sealing piece cooperates with different assembly structures to adjust the number of nozzles on the side walls of the first nozzle cavity and the second nozzle cavity. Different numbers of nozzles can match gas water heaters of different powers, so that the gas separation device can be suitable for gas water heaters of different powers, with high manufacturing flexibility and a wide range of applications. There is no need to separately open a mold or cast a gas separation device that matches the gas water heater of each load, so that one mold can produce gas separation devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0012] In an optional embodiment, the blocking member can be selectively installed in cooperation with one of the assembly structures, and the number of nozzles on the side walls of the first nozzle chamber and the second nozzle chamber can be adjusted by adjusting the side wall areas of the first nozzle chamber and the second nozzle chamber.

[0013] Beneficial effect: In the gas separation device of the present invention, each assembly structure is arranged at intervals. When the sealing member is installed in conjunction with different assembly structures, the internal volume of the first nozzle chamber and the second nozzle chamber changes accordingly, while the inner diameter of the first nozzle chamber and the second nozzle chamber remains unchanged. Therefore, the sealing member is installed in conjunction with different assembly structures to change the side wall area of ​​the first nozzle chamber and the second nozzle chamber. The side walls of the first nozzle chamber and the second nozzle chamber will form nozzles. When the side wall area of ​​the first nozzle chamber and the second nozzle chamber changes, the number of nozzles on the side walls of the corresponding first nozzle chamber and the second nozzle chamber will also change. Different numbers of nozzles can match gas water heaters of different powers, thereby realizing a mold that can manufacture gas separation devices with different needs. This gas separation device has a simple structure, is easy to manufacture, and does not increase manufacturing costs.

[0014] In an optional embodiment, the assembly structure includes a step protruding from the inner wall of the intersection of the first nozzle cavity and the second nozzle cavity.

[0015] Beneficial effects: The gas separation device of the present invention has an assembly structure including a step protruding from the inner wall of the intersection of the first nozzle chamber and the second nozzle chamber. This assembly structure is simple and reliable, easy to process and shape, and is conducive to reducing manufacturing costs.

[0016] In an optional embodiment, the inner diameters of the steps are different.

[0017] Beneficial effect: The gas distribution device of the present invention has different inner diameters of each step so as to be installed in coordination with the blocking member, thereby conveniently realizing the adjustment of the number of nozzles on the side walls of the first nozzle chamber and the second nozzle chamber.

[0018] In an optional embodiment, the inner diameter of the step is larger as it is closer to the second nozzle chamber.

[0019] Beneficial effect: In the gas distribution device of the present invention, since the second nozzle cavity is closer to the operating port than the first nozzle cavity, the inner diameter of the step closer to the second nozzle cavity is larger, which can facilitate the subsequent adjustment of the position of the blocking part and simplify the operation difficulty.

[0020] In an optional embodiment, the side walls of the first nozzle chamber and the second nozzle chamber are each provided with at least two nozzles.

[0021] Beneficial effects: The gas separation device of the present invention is provided with at least two nozzles on the side walls of the first nozzle cavity and the second nozzle cavity, so as to be suitable for gas water heaters of different powers.

[0022] In an optional embodiment, the assembly structure includes a first step and a second step, the first step is closer to the second nozzle chamber than the second step; the blocking member is installed in cooperation with the first step, and the side walls of the first nozzle chamber and the second nozzle chamber are each provided with two of the nozzles; or, the blocking member is installed in cooperation with the second step, the side wall of the first nozzle chamber is provided with two of the nozzles, and the side wall of the second nozzle chamber is provided with three of the nozzles.

[0023] Beneficial effect: The gas distribution device of the present invention has an assembly structure including a first step and a second step, and the first step is closer to the second nozzle chamber than the second step. At this time, when the blocking member is installed in cooperation with the first step or the second step, the number of nozzles arranged on the side walls of the first nozzle chamber and the second nozzle chamber can be adjusted. Specifically, the blocking member is installed in cooperation with the first step, and the side walls of the first nozzle chamber and the second nozzle chamber are both provided with two nozzles. This gas distribution device is suitable for 30kW 16-liter gas water heaters; or, the blocking member is installed in cooperation with the second step, and the side walls of the first nozzle chamber are provided with two nozzles, and the side walls of the second nozzle chamber are provided with three nozzles. This gas distribution device is suitable for 34kW 18-liter gas water heaters.

[0024] In an optional embodiment, the blocking member is installed with an interference fit with the assembly structure.

[0025] Beneficial effects: In the gas distribution device of the present invention, the blocking piece and the assembly structure are installed by interference fit, so as to improve the firmness of the installation and fit, make the blocking piece not easy to fall off, improve the reliability of the structure, and ensure the service life of the gas distribution device.

[0026] In an optional embodiment, a first nozzle is provided on the side wall of the main air channel.

[0027] Beneficial effect: The gas distribution device of the present invention is provided with a first nozzle on the side wall of the main gas channel. The first nozzle is a normally open nozzle, which is suitable for the first fire power gear (low fire working state) of the gas water heater to meet the user's demand for using low fire.

[0028] In an optional embodiment, the air channel also includes a third sub-air channel, which can be connected or disconnected with the main air channel, and the nozzle chamber also includes a third nozzle chamber, which is connected with the third sub-air channel, and a second nozzle is arranged on the side wall of the third nozzle chamber.

[0029] Beneficial effect: The gas distribution device of the present invention, the gas channel also includes a third gas channel, the third gas channel and the main gas channel can be connected or disconnected, the nozzle chamber also includes a third nozzle chamber, the third nozzle chamber is connected to the third gas channel, the side wall of the third nozzle chamber is provided with a second nozzle, when the first nozzle and the second nozzle spray, it is the second fire power gear (medium or small fire working state) of the gas water heater, meeting the different usage requirements of users.

[0030] In a second aspect, the present invention also provides a mold for manufacturing the above-mentioned air separation device, wherein the mold comprises a mold body and a core pulling part, wherein the core pulling part is connected to the mold body, and an outer wall of the core pulling part is formed with a molding structure matching the assembly structure of the air separation device.

[0031] Beneficial effect: The mold of the present invention can manufacture the gas separation device of the present invention, and can form at least two assembly structures at one time, so that the gas separation device can be suitable for gas water heaters of different powers, with high manufacturing flexibility and a wide range of applications. There is no need to separately open molds and cast gas separation devices that match gas water heaters of each load, so that one mold can manufacture gas separation devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0032] In a third aspect, the present invention further provides a water heater, comprising the gas separation device as described above.

[0033] Because the water heater of the present invention, including the gas separation device of the present invention, has the same beneficial effects as the gas separation device, it will not be described in detail here.

[0034] In a fourth aspect, the present invention further provides a control method for controlling the above-mentioned gas distribution device or for controlling the above-mentioned water heater, the control method comprising:

[0035] When the first fire gear is in operation, the first nozzle of the main airway supplies air;

[0036] When the second fire gear is in operation, the first nozzle and the second nozzle of the third air distribution channel supply air;

[0037] When the third fire gear is in operation, the first nozzle, the second nozzle and the two nozzles of the first nozzle chamber supply air;

[0038] When the fourth fire power gear is operated, the first nozzle, the second nozzle, at least two nozzles of the first nozzle chamber and at least two nozzles of the second nozzle chamber supply air.

[0039] Beneficial effects: The control method of the present invention has 1, 2, 4 and at least 6 nozzles jetting at the first to fourth power gears, respectively. Since different power gears from small to large correspond to different combustion states, each gear has its corresponding power segment, and there is overlap between adjacent gears. If the overlapping area is too small, when the required power is near the overlap area of ​​the two, it is easy to cause the two states to switch back and forth frequently, resulting in large fluctuations in water temperature, frequent solenoid valve switching sounds affecting user experience, etc. The control method of the present invention is used to control the gas distribution device of the present invention or to control the water heater of the present invention, especially when switching between the second power gear and the third power gear, the overlapping area between the two is large, and the difference in nozzle gas supply load is not very large, which can ensure that the combustion state can be stably switched as the required power changes, and it is not easy to extinguish the flame, and the water temperature will not fluctuate greatly during the switching adjustment, and the user experience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is an overall schematic diagram of the gas separation device of the present invention;

[0042] Figure 2 A cross-sectional view of the gas separation device of the present invention Figure 1 ;

[0043] Figure 3 A cross-sectional view of the gas separation device of the present invention Figure 2 ;

[0044] Figure 4 for Figure 3 An enlarged schematic diagram of part A (the plugging piece and the nozzle are omitted);

[0045] Figure 5 A cross-sectional view of the gas separation device of the present invention Figure 3 ;

[0046] Figure 6 A schematic diagram of another embodiment of the gas separation device of the present invention;

[0047] Figure 7 for Figure 6 A magnified schematic diagram of part B;

[0048] Figure 8 It is a partial structural schematic diagram of another embodiment of the gas separation device of the present invention;

[0049] Fig. 9 It is a partial structural schematic diagram of the mold of the present invention.

[0050] Description of reference numerals:

[0051] 1. Main body; 101. First part; 102. Second part; 103. Operation port;

[0052] 201, main airway; 202, first sub-airway; 203, second sub-airway; 204, third sub-airway;

[0053] 301, first nozzle chamber; 302, second nozzle chamber; 303, third nozzle chamber;

[0054] 4. Blocking parts;

[0055] 501, first nozzle; 502, second nozzle; 503, third nozzle; 504, fourth nozzle; 505, fifth nozzle; 506, sixth nozzle; 507, seventh nozzle;

[0056] 6. Core pulling department;

[0057] 701, first solenoid valve; 702, second solenoid valve; 703, third solenoid valve;

[0058] 801, first step; 802, second step. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0060] Combine the following Figure 1-Figure 9 , describing embodiments of the gas distribution device, mold, water heater and control method of the present invention.

[0061] According to an embodiment of the present invention, there is provided an air distribution device, comprising: a main body 1, an air duct, a nozzle chamber, at least two assembly structures and a blocking member 4, the air duct being arranged in the main body 1, the air duct comprising a main air duct 201, a first sub-air duct 202 and a second sub-air duct 203, the main air duct 201 and the first sub-air duct 202 can be connected or disconnected, and the first sub-air duct 202 and the second sub-air duct 203 can be connected or disconnected; the nozzle chamber is arranged in the main body 1, the nozzle chamber comprising a first nozzle chamber 301 and a second nozzle chamber 302 arranged adjacent to each other, the first nozzle chamber 301 is connected to the first sub-air duct 202, and the second nozzle chamber 302 is connected to the second sub-air duct 203; at least two assembly structures are arranged at intervals on the inner wall of the intersection of the first nozzle chamber 301 and the second nozzle chamber 302; the blocking member 4 can be selectively installed in cooperation with one of the assembly structures to adjust the number of nozzles on the side walls of the first nozzle chamber 301 and the second nozzle chamber 302.

[0062] This gas separation device is provided with at least two assembly structures inside the main body 1, and at least two assembly results are arranged at intervals on the inner wall of the intersection of the first nozzle cavity 301 and the second nozzle cavity 302. The sealing member 4 can be selectively installed in conjunction with one of the assembly structures. The sealing member 4 cooperates with different assembly structures to adjust the number of nozzles on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302. Different numbers of nozzles can match gas water heaters of different powers, so that this gas separation device can be suitable for gas water heaters of different powers, with high manufacturing flexibility and a wide range of applications. There is no need to separately open a mold or cast a gas separation device that matches a gas water heater of each load, so that one mold can manufacture gas separation devices with different requirements, which greatly simplifies the manufacturing process and manufacturing costs.

[0063] like Figure 1 As shown, the gas distributor is a T-shaped structure as a whole, and is used to distribute gas to the burner. The gas distributor is made of metal material as a whole, and includes a body 1, and the body 1 includes a first part 101 and a second part 102. In this embodiment, the first part 101 and the second part 102 are arranged perpendicular to each other.

[0064] The air channel is arranged in the main body 1, the air inlet of the air channel is suitable for being connected with the air source supply part, and the air outlet of the air channel is each nozzle. Figure 2-Figure 3As shown, the airway includes a main airway 201, a first sub-airway 202, and a second sub-airway 203. The main airway 201 is arranged in the first part 101, and the main airway 201 is arranged along the length direction of the first part 101. The first sub-airway 202 and the second sub-airway 203 are both arranged in the second part 102, and the first sub-airway 202 and the second sub-airway 203 are both arranged perpendicular to the length direction of the second part 102. Since the first part 101 and the second part 102 are arranged perpendicular to each other, the first sub-airway 202 and the second sub-airway 203 are both parallel to the main airway 201.

[0065] The first sub-gas passage 202 is arranged closer to the main gas passage 201 than the second sub-gas passage 203. The main gas passage 201 and the first sub-gas passage 202 can be connected or disconnected. When the main gas passage 201 and the first sub-gas passage 202 are connected, the gas in the main gas passage 201 can enter the first sub-gas passage 202, and when the main gas passage 201 and the first sub-gas passage 202 are disconnected, the gas in the main gas passage 201 cannot enter the first sub-gas passage 202. Similarly, the first sub-gas passage 202 and the second sub-gas passage 203 can be connected or disconnected. When the first sub-gas passage 202 and the second sub-gas passage 203 are connected, the gas in the first sub-gas passage 202 can enter the second sub-gas passage 203, and when the first sub-gas passage 202 and the second sub-gas passage 203 are disconnected, the gas in the first sub-gas passage 202 cannot enter the second sub-gas passage 203.

[0066] In this embodiment, the main airway 201 and the first branch airway 202 are connected or disconnected through the first solenoid valve 701, that is, the first solenoid valve 701 can control the connection and disconnection of the main airway 201 and the first branch airway 202. Similarly, the first branch airway 202 and the second branch airway 203 are connected or disconnected through the second solenoid valve 702, that is, the second solenoid valve 702 can control the connection and disconnection of the first branch airway 202 and the second branch airway 203.

[0067] The nozzle cavity is arranged in the second part 102, and the nozzle cavity is used to connect the gas passage and the corresponding nozzle so that the gas in the gas passage is ejected from the nozzle. Specifically, the nozzle cavity includes a first nozzle cavity 301 and a second nozzle cavity 302 arranged adjacent to each other, the first nozzle cavity 301 is connected to the first branch gas passage 202, and the second nozzle cavity 302 is connected to the second branch gas passage 203. The first nozzle cavity 301 and the second nozzle cavity 302 are arranged along the length direction of the second part 102, and the first nozzle cavity 301 is arranged closer to the main gas passage 201 than the second nozzle cavity 302.

[0068] At least two assembly structures are arranged at intervals on the inner wall of the intersection of the first nozzle cavity 301 and the second nozzle cavity 302. The first nozzle cavity 301 and the second nozzle cavity 302 are arranged adjacent to each other, and there is an intersection between the two, and the assembly structure is arranged at the intersection. The blocking member 4 can be selectively installed in conjunction with one of the assembly structures. When the blocking member 4 is installed in conjunction with a certain assembly structure, the blocking member 4 serves as a common wall of the first nozzle cavity 301 and the second nozzle cavity 302, which can make the first nozzle cavity 301 and the second nozzle cavity 302 independent of each other and not interfere with each other. In this embodiment, the blocking member 4 is specifically a plugging cover.

[0069] At least two assembly structures are arranged at intervals, specifically, at least two assembly structures are arranged at intervals along the length direction of the second part 102, so that when the sealing member 4 cooperates with different assembly structures, the number of nozzles on the side walls of the first nozzle cavity and the second nozzle cavity can be adjusted, and different numbers of nozzles can match gas water heaters of different powers, so that this gas distribution device can be suitable for gas water heaters of different powers, with high manufacturing flexibility and a wide range of applications, and a mold can be used to manufacture gas distribution devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0070] Furthermore, the blocking member 4 can be selectively installed in cooperation with one of the assembly structures, and the number of nozzles on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 can be adjusted by adjusting the side wall areas of the first nozzle cavity 301 and the second nozzle cavity 302 .

[0071] At least two assembly structures are arranged at intervals along the length direction of the second part 102. When the sealing member 4 is installed in conjunction with different assembly structures, the internal volumes of the first nozzle cavity 301 and the second nozzle cavity 302 will change accordingly, while the inner diameters of the first nozzle cavity 301 and the second nozzle cavity 302 remain unchanged. Therefore, the sealing member 4 is installed in conjunction with different assembly structures to change the side wall areas of the first nozzle cavity 301 and the second nozzle cavity 302. The side walls of the first nozzle cavity 301 and the second nozzle cavity 302 will form nozzles. When the side wall areas of the first nozzle cavity 301 and the second nozzle cavity 302 change, the number of nozzles on the side walls of the corresponding first nozzle cavity 301 and the second nozzle cavity 302 will also change. Different numbers of nozzles can match gas water heaters of different powers, thereby realizing a mold that can manufacture gas distributors with different requirements. This gas distributor has a simple structure, is easy to manufacture, and does not increase manufacturing costs.

[0072] Furthermore, the assembly structure includes a step protruding from the inner wall of the junction of the first nozzle cavity 301 and the second nozzle cavity 302 .

[0073] In this embodiment, the assembly structure is a step structure, that is, the assembly structure includes a step, which protrudes from the inner wall at the junction of the first nozzle chamber 301 and the second nozzle chamber 302. This assembly structure is easy to process and form, has a simple structure and high reliability, and can reduce the manufacturing cost of the gas separation device.

[0074] Furthermore, the inner diameters of the steps are different.

[0075] There are at least two assembly structures, that is, at least two steps, and the inner diameters of the steps are different, so as to realize the coordinated installation of different steps and the blocking member 4, thereby conveniently realizing the adjustment of the number of side wall nozzles of the first nozzle chamber 301 and the second nozzle chamber 302, which is conducive to reducing the difficulty of operation.

[0076] Furthermore, the inner diameter of the step closer to the second nozzle chamber 302 is larger.

[0077] like Figure 1-Figure 5 As shown, taking the angle shown in the figure as an example, the left end of the second part 102 of the gas distributor is the operating port 103, and a tool can be inserted into the operating port 103 to adjust the installation position of the blocking member 4. The second nozzle chamber 302 is arranged closer to the operating port 103 than the first nozzle chamber 301. In order to facilitate the matching and installation of the blocking member 4 with each step, the inner diameter of the step closer to the second nozzle chamber 302 is larger to facilitate the installation operation.

[0078] Optionally, the assembly structure includes a first step 801 and a second step 802, and the first step 801 is closer to the second nozzle chamber 302 than the second step 802. Figure 4 As shown, the inner diameter of the first step 801 is φC, and the inner diameter of the second step 802 is φD, φC>φD, that is, the inner diameter of the first step 801 is greater than the inner diameter of the second step 802, and the distance between the first step 801 and the second step 802 is L. The blocking member 4 can be installed in conjunction with the first step 801, and the blocking member 4 can also be installed in conjunction with the second step 802.

[0079] Furthermore, the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 are each provided with at least two nozzles.

[0080] At least two nozzles are disposed on the side walls of the first nozzle chamber 301 and the second nozzle chamber 302 to be suitable for gas water heaters of different powers.

[0081] In this embodiment, the blocking member 4 is installed in cooperation with the first step 801, and the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 are each provided with two nozzles. Specifically, the side wall of the first nozzle cavity 301 is provided with a third nozzle 503 and a fourth nozzle 504, and the side wall of the second nozzle cavity 302 is provided with a fifth nozzle 505 and a sixth nozzle 506.

[0082] When the first solenoid valve 701 is opened, the first sub-gas channel 202 is connected with the main gas channel 201, and the gas enters the first sub-gas channel 202 from the main gas channel 201, and then enters the first nozzle chamber 301, and the gas can be sprayed from the third nozzle 503 and the fourth nozzle 504. When the first solenoid valve 701 and the second solenoid valve 702 are both opened, the second sub-gas channel 203 is connected with the first sub-gas channel 202, and the gas enters the first sub-gas channel 202 from the main gas channel 201 and then enters the second sub-gas channel 203, and then enters the second nozzle chamber 302, and the gas can be sprayed not only from the third nozzle 503 and the fourth nozzle 504, but also from the fifth nozzle 505 and the sixth nozzle 506.

[0083] Furthermore, the blocking member 4 is installed with an interference fit with the assembly structure.

[0084] In order to improve the firmness of the installation, the plugging member 4 and the assembly structure are installed with interference fit. After the plugging member 4 and the assembly structure are installed, the plugging member 4, as the common side wall of the first nozzle cavity 301 and the second nozzle cavity 301, needs to withstand the pressure difference of the nozzle cavities on both sides, and the plugging member 4 and the assembly structure are interference fit, which can make the plugging member 4 firmly set, and the plugging member 4 is not easy to fall off, thereby improving the reliability of the structure and ensuring the service life of the gas separation device.

[0085] Furthermore, a first nozzle 501 is disposed on the side wall of the main air channel 201 .

[0086] The gas distribution device of this embodiment is provided with a first nozzle 501 on the side wall of the main gas channel 201. The first nozzle 501 is a normally open nozzle, which is suitable for the first fire gear (low fire working state) of the gas water heater to meet the user's need to use low fire. The setting position of the first nozzle 501 needs not to affect the setting of other gas channels.

[0087] Furthermore, the air channel also includes a third branch air channel 204, which can be connected or disconnected with the main air channel 201, and the nozzle chamber also includes a third nozzle chamber 303, which is connected with the third branch air channel 204, and a second nozzle 502 is arranged on the side wall of the third nozzle chamber 303.

[0088] In the gas distribution device of this embodiment, the gas channel further includes a third gas channel 204, and the third gas channel 204 can be connected or disconnected with the main gas channel 201. The third gas channel 204 is arranged in the second part 102. Figure 1-Figure 3As shown, the third sub-airway 204 is arranged on both sides of the main airway 201 opposite to the first sub-airway 202 and the second sub-airway 203. Optionally, the axes of the first sub-airway 202, the second sub-airway 203 and the third sub-airway 204 are arranged in parallel, and the axes of the first sub-airway 202, the second sub-airway 203 and the third sub-airway 204 can be arranged in parallel and in the same plane.

[0089] In this embodiment, the third sub-airway 204 is connected or disconnected with the main airway 201 via the third solenoid valve 703 , that is, the third solenoid valve 703 can control the connection and disconnection of the third sub-airway 204 and the main airway 201 .

[0090] The nozzle chamber also includes a third nozzle chamber 303, which is connected to the third gas distribution channel 204. The side wall of the third nozzle chamber 303 is provided with a second nozzle 502. The first nozzle 501 is a normally open nozzle. When the first nozzle 501 and the second nozzle 502 spray, it is the second fire power gear (medium or small fire working state) of the gas water heater, which can meet different usage requirements.

[0091] In order to make the appearance of the gas distributor more regular and facilitate the subsequent coordination with the burner, the axes of the first nozzle 501, the second nozzle 502, the third nozzle 503, the fourth nozzle 504, the fifth nozzle 505 and the sixth nozzle 506 are parallel and coplanar. This six-nozzle gas distributor is suitable for a 30kW 16-liter water heater.

[0092] It should be noted that, according to the different gas water heaters matched with the gas distribution device, after the plugging member 4 is assembled, each nozzle can be formed through subsequent processing.

[0093] The gas distribution device of this embodiment can be applied to water heaters with different loads, which can reduce the later processing steps, improve the versatility of the product, narrow the load fluctuation range, and improve the user experience; at the same time, it increases the overlapping area of ​​adjacent working gears, making the fire power switching smoother and reducing safety hazards such as accidental flameout.

[0094] This embodiment also provides a mold for manufacturing the gas separation device of this embodiment. The mold includes a mold body and a core pulling part 6. The core pulling part 6 is connected to the mold body. The outer wall of the core pulling part 6 is formed with a molding structure that matches the assembly structure of the gas separation device.

[0095] like Fig. 9As shown, a molding structure is provided on the outer wall of the core-pulling portion 6, and there are at least two molding structures, and the molding structure matches the assembly structure of the gas distribution device. In this embodiment, there are two molding structures, specifically, the molding structure is a protruding structure protruding from the outer wall of the core-pulling portion 6, the larger molding structure has an outer diameter of φC, and the smaller molding structure has an outer diameter of φD, φC>φD, the larger molding structure can form a first step 801, and the smaller molding structure can form a second step 802.

[0096] This mold can die-cast at least two assembly structures at one time, thereby manufacturing the gas separation device of this embodiment, so that this gas separation device can be suitable for gas water heaters of different powers, with high manufacturing flexibility and a wide range of applications. There is no need to separately open molds and cast gas separation devices that match gas water heaters of each load, so that one mold can manufacture gas separation devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0097] This embodiment also provides a water heater, including the gas separation device of this embodiment.

[0098] The gas distribution device structures that match water heaters with different powers (different loads) are different, and the gas distribution device of this embodiment can be suitable for water heaters with different powers, with high manufacturing flexibility and a wide range of applications. There is no need to separately open molds and cast gas distribution devices that match gas water heaters with each load, so that one mold can produce gas distribution devices with different needs.

[0099] Specifically, the water heater is a gas water heater, and the gas water heater includes other devices and structures that existing gas water heaters have, such as a burner, etc. The gas distribution device distributes gas to the burner, and the two cooperate with each other to achieve the hot water preparation process.

[0100] This embodiment also provides a control method, which is used to control the gas distribution device of this embodiment or to control the water heater of this embodiment. The control method includes:

[0101] When the first fire gear is in operation, the first nozzle 501 of the main air passage 201 supplies air;

[0102] When the second fire gear is in operation, the first nozzle 501 and the second nozzle 502 of the third gas branch channel 204 supply gas;

[0103] When the third fire gear is in operation, the first nozzle 501, the second nozzle 502 and the two nozzles of the first nozzle chamber 301 supply gas;

[0104] When the fourth fire power gear is operated, the first nozzle 501, the second nozzle 502, at least two nozzles of the first nozzle chamber 301 and at least two nozzles of the second nozzle chamber 302 supply gas.

[0105] This control method corresponds to different firepower levels selected by the user. Specifically, the first firepower level corresponds to a low-fire working state, the second firepower level corresponds to a medium-low-fire working state, the third firepower level corresponds to a medium-high-fire working state, and the fourth firepower level corresponds to a high-fire working state. The user can make a selection by operating the corresponding control structure on the water heater as needed.

[0106] like Figure 3 As shown in the figure, the arrow direction is the gas flow direction. The initial state of each solenoid valve is closed.

[0107] When the user selects the first fire gear, only the first nozzle 501 of the main air channel 201 supplies gas to the burner. The first nozzle 501 is a normally open nozzle, and it is in a low-fire working state.

[0108] When the user selects the second fire gear, the third solenoid valve 703 opens, the third branch gas channel 204 is connected to the main gas channel 201, the gas enters the third branch gas channel 204 from the main gas channel 201, and then enters the third nozzle chamber 303, and the gas can be sprayed out from the second nozzle 502. The first nozzle 501 is a normally open nozzle. The first nozzle 501 and the second nozzle 502 supply gas to the burner at the same time, that is, the two nozzles supply gas to the burner. At this time, it is a medium or small fire working state.

[0109] When the user selects the third fire gear, the first solenoid valve 701 opens, the first branch gas channel 202 is connected to the main gas channel 201, the gas enters the first branch gas channel 202 from the main gas channel 201, and then enters the first nozzle chamber 301, the gas can be sprayed out from the third nozzle 503 and the fourth nozzle 504, the third solenoid valve 703 is also in an open state, the first nozzle 501 is a normally open nozzle, the first nozzle 501, the second nozzle 502, the third nozzle 503 and the fourth nozzle 504 supply gas to the burner at the same time, that is, four nozzles supply gas to the burner, and this is the medium and high fire working state.

[0110] When the user selects the fourth fire gear, the first solenoid valve 701 and the second solenoid valve 702 are both opened, the second gas channel 203 is connected to the first gas channel 202, and the gas enters the first gas channel 202 from the main gas channel 201 and then enters the second gas channel 203, and then enters the second nozzle chamber 302. The gas can be sprayed not only from the third nozzle 503 and the fourth nozzle 504, but also from the fifth nozzle 505 and the sixth nozzle 506. The third solenoid valve 703 is also in an open state, and the first nozzle 501 is a normally open nozzle. The first nozzle 501, the second nozzle 502, the third nozzle 503, the fourth nozzle 504, the fifth nozzle 505 and the sixth nozzle 506 supply gas to the burner at the same time, that is, six nozzles supply gas to the burner, and it is now in a high fire working state.

[0111] like Figure 6-Figure 8The figure shows another embodiment of the gas distribution device of this embodiment. The difference between this embodiment and the previous embodiment is that the blocking member 4 is installed in cooperation with the second step 802, the side wall of the first nozzle cavity 301 is provided with two nozzles, and the side wall of the second nozzle cavity 302 is provided with three nozzles.

[0112] like Figure 8 As shown, in the previous embodiment, the blocking member 4 is installed in cooperation with the first step 801, as shown by the dotted line position m in the figure, in this embodiment, the blocking member 4 is installed in cooperation with the second step 802. As a result, the internal volume of the first nozzle chamber 301 becomes smaller and the internal volume of the second nozzle chamber 302 becomes larger, so the side wall area of ​​the first nozzle chamber 301 becomes smaller and the side wall area of ​​the second nozzle chamber 302 becomes larger. The side wall of the first nozzle chamber 301 is provided with two nozzles, namely the third nozzle 503 and the fourth nozzle 504, while the side wall of the second nozzle chamber 302 is provided with three nozzles, namely the fifth nozzle 505, the sixth nozzle 506 and the seventh nozzle 507. This gas distribution device with a seven-nozzle structure is suitable for a 34kW 18-liter water heater.

[0113] like Figure 6 As shown, the arrow direction is the gas flow direction.

[0114] When controlling the gas separation device of this embodiment, the control method includes:

[0115] When the user selects the first fire gear, only the first nozzle 501 of the main air channel 201 supplies gas to the burner. The first nozzle 501 is a normally open nozzle, and it is in a low-fire working state.

[0116] When the user selects the second fire gear, the third solenoid valve 703 opens, the third branch gas channel 204 is connected to the main gas channel 201, the gas enters the third branch gas channel 204 from the main gas channel 201, and then enters the third nozzle chamber 303, and the gas can be sprayed out from the second nozzle 502. The first nozzle 501 is a normally open nozzle. The first nozzle 501 and the second nozzle 502 supply gas to the burner at the same time, that is, the two nozzles supply gas to the burner. At this time, it is a medium or small fire working state.

[0117] When the user selects the third fire gear, the first solenoid valve 701 opens, the first branch gas channel 202 is connected to the main gas channel 201, the gas enters the first branch gas channel 202 from the main gas channel 201, and then enters the first nozzle chamber 301, the gas can be sprayed out from the third nozzle 503 and the fourth nozzle 504, the third solenoid valve 703 is also in an open state, the first nozzle 501 is a normally open nozzle, the first nozzle 501, the second nozzle 502, the third nozzle 503 and the fourth nozzle 504 supply gas to the burner at the same time, that is, four nozzles supply gas to the burner, and this is the medium and high fire working state.

[0118] When the user selects the fourth fire gear, the first solenoid valve 701 and the second solenoid valve 702 are both opened, the second gas channel 203 is connected to the first gas channel 202, and the gas enters the first gas channel 202 from the main gas channel 201 and then enters the second gas channel 203, and then enters the second nozzle chamber 302. The gas can be sprayed not only from the third nozzle 503 and the fourth nozzle 504, but also from the fifth nozzle 505, the sixth nozzle 506 and the seventh nozzle 507. The third solenoid valve 703 is also in an open state, and the first nozzle 501 is a normally open nozzle. The first nozzle 501, the second nozzle 502, the third nozzle 503, the fourth nozzle 504, the fifth nozzle 505, the sixth nozzle 506 and the seventh nozzle 507 supply gas to the burner at the same time, that is, seven nozzles supply gas to the burner, and it is now in a high fire working state.

[0119] In other embodiments, according to the size of the gas distribution device body 1 and different gas distribution requirements, the gas distribution device can also be provided with three, four, five, etc. assembly structures. Similarly, the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 can be provided with four, five, six, etc. nozzles. The number of nozzles on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 can be the same or different.

[0120] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A gas separation device, characterized in that: include: Ontology(1); An air channel is arranged in the body (1), the air channel comprising a main air channel (201), a first branch air channel (202) and a second branch air channel (203), the main air channel (201) and the first branch air channel (202) can be connected or disconnected, and the first branch air channel (202) and the second branch air channel (203) can be connected or disconnected; a nozzle chamber, arranged in the body (1), the nozzle chamber comprising a first nozzle chamber (301) and a second nozzle chamber (302) arranged adjacent to each other, the first nozzle chamber (301) being in communication with the first branch air channel (202), and the second nozzle chamber (302) being in communication with the second branch air channel (203); At least two assembly structures are arranged at intervals on the inner wall of the intersection of the first nozzle cavity (301) and the second nozzle cavity (302); The blocking member (4) can be selectively installed in cooperation with one of the assembly structures to adjust the number of nozzles on the side walls of the first nozzle chamber (301) and the second nozzle chamber (302).

2. The gas separation device according to claim 1, characterized in that: The blocking member (4) can be selectively installed in cooperation with one of the assembly structures, and the number of nozzles on the side walls of the first nozzle cavity (301) and the second nozzle cavity (302) can be adjusted by adjusting the side wall areas of the first nozzle cavity (301) and the second nozzle cavity (302).

3. The gas separation device according to claim 1, characterized in that: The assembly structure comprises a step protruding from the inner wall of the junction of the first nozzle cavity (301) and the second nozzle cavity (302).

4. The gas separation device according to claim 3, characterized in that: The inner diameters of the steps are different.

5. The gas separation device according to claim 4, characterized in that: The closer the step is to the second nozzle chamber (302), the larger the inner diameter of the step is.

6. The gas separation device according to claim 1, characterized in that: The side walls of the first nozzle chamber (301) and the second nozzle chamber (302) are each provided with at least two nozzles.

7. The gas separation device according to claim 6, characterized in that: The assembly structure comprises a first step (801) and a second step (802), the first step (801) being closer to the second nozzle cavity (302) than the second step (802); the blocking member (4) is mounted in cooperation with the first step (801), and the side walls of the first nozzle cavity (301) and the second nozzle cavity (302) are each provided with two of the nozzles; or, the blocking member (4) is mounted in cooperation with the second step (802), the side walls of the first nozzle cavity (301) are provided with two of the nozzles, and the side walls of the second nozzle cavity (302) are provided with three of the nozzles.

8. The gas separation device according to claim 1, characterized in that: The blocking member (4) is installed in an interference fit with the assembly structure.

9. The gas separation device according to claim 1, characterized in that: A first nozzle (501) is provided on the side wall of the main air channel (201).

10. The gas separation device according to any one of claims 1 to 9, characterized in that: The air channel also includes a third branch air channel (204), and the third branch air channel (204) can be connected or disconnected with the main air channel (201). The nozzle chamber also includes a third nozzle chamber (303), and the third nozzle chamber (303) is connected with the third branch air channel (204). The side wall of the third nozzle chamber (303) is provided with a second nozzle (502).

11. A mold, characterized in that: Used to manufacture the gas separation device according to any one of claims 1 to 10, the mold comprises a mold body and a core pulling part (6), the core pulling part (6) is connected to the mold body, and the outer wall of the core pulling part (6) is formed with a molding structure matching the assembly structure of the gas separation device.

12. A water heater, characterized in that: It comprises a gas separation device as described in any one of claims 1 to 10.

13. A control method, characterized in that: Used to control the gas distribution device according to any one of claims 1 to 10 or used to control the water heater according to claim 12, the control method comprising: When the first fire gear is in operation, the first nozzle (501) of the main air channel (201) supplies air; When the second fire power gear is in operation, the first nozzle (501) and the second nozzle (502) of the third gas branch channel (204) supply gas; When the third fire power gear is in operation, the first nozzle (501), the second nozzle (502) and the two nozzles of the first nozzle chamber (301) supply air; When the fourth fire power gear is in operation, the first nozzle (501), the second nozzle (502), at least two nozzles of the first nozzle chamber (301), and at least two nozzles of the second nozzle chamber (302) supply air.

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