Air distribution device, mold and water heater

Abstract

The utility model relates to the field of household appliances, and discloses an air distribution device, a mold and a water heater. 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 utility model relates to the technical field of household electrical appliances, and in particular to a gas distribution device, a mold and a water heater. 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, mainly used for gas distribution, which 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 the gas distributor rod of each structure, which makes the manufacturing process of the gas distributor rod cumbersome and the manufacturing cost high. Utility Model Content

[0004] In view of this, the utility model provides an air distribution device, a mold and a water heater to solve the problem that each type of 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 disposed in the body, the airway comprising a main airway, a first sub-airway, and a second sub-airway, wherein 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 provided in the body, the nozzle chamber comprising 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 spaced apart and arranged 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 conjunction 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 distribution 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 part can be selectively installed in conjunction with one of the assembly structures. The sealing part 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 this gas distribution 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 the gas distribution device that matches the gas water heater of each load, so that one mold can produce gas distribution 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 conjunction with one of the assembly structures, and the number of nozzles on the side walls of the first nozzle cavity and the second nozzle cavity can be adjusted by adjusting the side wall areas of the first nozzle cavity and the second nozzle cavity.

[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 cavity and the second nozzle cavity changes accordingly, while the inner diameter of the first nozzle cavity and the second nozzle cavity remains unchanged. Therefore, the sealing member is installed in conjunction with different assembly structures to change the side wall area of ​​the first nozzle cavity and the second nozzle cavity. The side walls of the first nozzle cavity and the second nozzle cavity will form nozzles. The side wall area of ​​the first nozzle cavity and the second nozzle cavity changes, and the number of nozzles on the side walls of the corresponding first nozzle cavity and the second nozzle cavity 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 utility model 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 form, and helps to reduce manufacturing costs.

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

[0017] Beneficial effects: In the gas distribution device of the present invention, the inner diameters of the steps are different, 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 the closer it is 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 utility model 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 walls of the first nozzle chamber are provided with two of the nozzles, and the side walls of the second nozzle chamber are provided with three of the nozzles.

[0023] Beneficial effect: The gas distribution device of the utility model 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 conjunction with the first step or the second step, the number of nozzles set on the side walls of the first nozzle chamber and the second nozzle chamber can be adjusted. Specifically, the blocking member is installed in conjunction with the first step, and the side walls of the first nozzle chamber and the second nozzle chamber are each provided with two nozzles. This gas distribution device is suitable for 30kW 16-liter gas water heaters; or, the blocking member is installed in conjunction 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 on the assembly structure.

[0025] Beneficial effects: In the gas distribution device of the present invention, the blocking piece and the assembly structure are installed with interference fit to improve the firmness of the installation and fit, making the blocking piece less likely to fall off, thereby improving the reliability of the structure and ensuring 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 air duct. The first nozzle 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 demand for using low fire.

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

[0029] Beneficial effects: The gas distribution device of the present invention, the air duct also includes a third air distribution duct, the third air distribution duct and the main air duct can be connected or disconnected, the nozzle chamber also includes a third nozzle chamber, the third nozzle chamber is connected to the third air distribution duct, 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, which meets the different usage needs of users.

[0030] In the second aspect, the utility model also provides a mold for manufacturing the above-mentioned air separation device, wherein the mold includes a mold body and a core pulling part, wherein the core pulling part is connected to the mold body, and the outer wall of the core pulling part is formed with a molding structure that matches the assembly structure of the air separation device.

[0031] Beneficial effects: The mold of the present invention can produce the gas distribution device of the present invention, and form at least two assembly structures at one time, so that the gas distribution 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 distribution devices that match gas water heaters of each load, so that one mold can produce gas distribution 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 this method includes the gas separation device of the present invention, it has the same beneficial effects as the gas separation device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1This is an overall schematic diagram of the gas separation device of the utility model;

[0036] Figure 2 This is a cross-sectional view of the gas separation device of the utility model Figure 1 ;

[0037] Figure 3 This is a cross-sectional view of the gas separation device of the utility model Figure 2 ;

[0038] Figure 4 for Figure 3 An enlarged schematic diagram of part A (omitting the plugging piece and nozzle);

[0039] Figure 5 This is a cross-sectional view of the gas separation device of the utility model Figure 3 ;

[0040] Figure 6 This is a schematic diagram of another embodiment of the gas separation device of the present invention;

[0041] Figure 7 for Figure 6 An enlarged schematic diagram of part B;

[0042] Figure 8 This is a partial structural diagram of another embodiment of the gas separation device of the present utility model;

[0043] Figure 9 It is a partial structural schematic diagram of the mold of the utility model.

[0044] Description of reference numerals:

[0045] 1. Main body; 101. First part; 102. Second part; 103. Operation port;

[0046] 201, main airway; 202, first branch airway; 203, second branch airway; 204, third branch airway;

[0047] 301, first nozzle chamber; 302, second nozzle chamber; 303, third nozzle chamber;

[0048] 4. Sealing parts;

[0049] 501, first nozzle; 502, second nozzle; 503, third nozzle; 504, fourth nozzle; 505, fifth nozzle; 506, sixth nozzle; 507, seventh nozzle;

[0050] 6. Core pulling department;

[0051] 701, first solenoid valve; 702, second solenoid valve; 703, third solenoid valve;

[0052] 801, first step; 802, second step. DETAILED DESCRIPTION

[0053] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions 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 embodiments described 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 making creative efforts shall fall within the scope of protection of the present invention.

[0054] The following combination Figures 1-9 , describing the embodiments of the gas distribution device, mold and water heater of the utility model.

[0055] According to an embodiment of the present utility model, an air distribution device is provided, 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 branch air duct 202 and a second branch air duct 203, the main air duct 201 and the first branch air duct 202 can be connected or disconnected, and the first branch air duct 202 and the second branch 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 being connected to the first branch air duct 202, and the second nozzle chamber 302 being connected to the second branch 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 conjunction 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.

[0056] 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 the 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.

[0057] like Figure 1As shown, the gas distributor has a T-shaped structure and is used to distribute gas to the burner. The gas distributor is made entirely of metal and includes a body 1, which includes a first portion 101 and a second portion 102. In this embodiment, the first portion 101 and the second portion 102 are arranged perpendicular to each other.

[0058] The airway is arranged in the body 1, the air inlet of the airway is suitable for communicating with the air source supply component, and the air outlet of the airway is each nozzle. Figure 2-Figure 3 As 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 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 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.

[0059] The first sub-airway 202 is arranged closer to the main airway 201 than the second sub-airway 203. The main airway 201 and the first sub-airway 202 can be connected or disconnected. When the main airway 201 and the first sub-airway 202 are connected, the gas in the main airway 201 can enter the first sub-airway 202. When the main airway 201 and the first sub-airway 202 are disconnected, the gas in the main airway 201 cannot enter the first sub-airway 202. Similarly, the first sub-airway 202 and the second sub-airway 203 can be connected or disconnected. When the first sub-airway 202 and the second sub-airway 203 are connected, the gas in the first sub-airway 202 can enter the second sub-airway 203. When the first sub-airway 202 and the second sub-airway 203 are disconnected, the gas in the first sub-airway 202 cannot enter the second sub-airway 203.

[0060] 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.

[0061] The nozzle cavity is located within the second portion 102. It connects the gas passageway to the corresponding nozzle, allowing the gas within the passageway to be ejected from the nozzle. Specifically, the nozzle cavity includes a first nozzle cavity 301 and a second nozzle cavity 302, which are adjacently arranged. The first nozzle cavity 301 communicates with the first branch gas passageway 202, while the second nozzle cavity 302 communicates with the second branch gas passageway 203. The first and second nozzle cavities 301, 302 are arranged along the length of the second portion 102, with the first nozzle cavity 301 being closer to the main gas passageway 201 than the second nozzle cavity 302.

[0062] At least two assembly structures are spaced apart on the inner wall at the intersection of the first nozzle chamber 301 and the second nozzle chamber 302. The first nozzle chamber 301 and the second nozzle chamber 302 are adjacent to each other, with an assembly structure disposed at this intersection. The blocking member 4 can be selectively installed with one of the assembly structures. When installed with a particular assembly structure, the blocking member 4 serves as a shared wall between the first and second nozzle chambers 301, 302, ensuring that the first and second nozzle chambers 301, 302 are independent of each other and do not interfere with each other. In this embodiment, the blocking member 4 is specifically a plugging cap.

[0063] 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 is matched 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 realizes that a mold can produce gas distribution devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0064] Furthermore, the blocking member 4 can be selectively installed in conjunction with one of the assembly structures to adjust the number of nozzles on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 by adjusting the side wall areas of the first nozzle cavity 301 and the second nozzle cavity 302 .

[0065] 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 volume of the first nozzle cavity 301 and the second nozzle cavity 302 will change accordingly, while the inner diameter of the first nozzle cavity 301 and the second nozzle cavity 302 remains unchanged. Therefore, the sealing member 4 is installed in conjunction with different assembly structures to change the side wall area 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. The side wall area of ​​the first nozzle cavity 301 and the second nozzle cavity 302 changes, and the number of nozzles on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 will also change accordingly. Different numbers of nozzles can match gas water heaters of different powers, thereby realizing a mold that can manufacture gas distribution devices with different needs. This gas distribution device has a simple structure, is easy to manufacture, and does not increase manufacturing costs.

[0066] Furthermore, the assembly structure includes a step protruding from the inner wall of the intersection of the first nozzle cavity 301 and the second nozzle cavity 302 .

[0067] 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 intersection 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 strong reliability, and can reduce the manufacturing cost of the gas separation device.

[0068] Furthermore, the inner diameters of the steps are different.

[0069] There are at least two assembly structures, that is, there are at least two steps, and the inner diameter of each step is 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 nozzles on the side walls of the first nozzle chamber 301 and the second nozzle chamber 302, which is conducive to reducing the difficulty of operation.

[0070] Furthermore, the inner diameter of the step closer to the second nozzle chamber 302 is larger.

[0071] like Figure 1-Figure 5 As shown, taking the perspective shown as an example, the left end of the second portion 102 of the gas distributor is an operating port 103, into which a tool can be inserted to adjust the installation position of the blocking member 4. The second nozzle chamber 302 is located closer to the operating port 103 than the first nozzle chamber 301. To facilitate the installation of the blocking member 4, the inner diameter of the steps closer to the second nozzle chamber 302 is larger to facilitate installation.

[0072] 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 4As shown, the inner diameter of the first step 801 is φC, and the inner diameter of the second step 802 is φD, where φC>φD, i.e., the inner diameter of the first step 801 is larger 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.

[0073] Furthermore, the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 are each provided with at least two nozzles.

[0074] At least two nozzles are provided on the side walls of the first nozzle cavity 301 and the second nozzle cavity 302 to be suitable for gas water heaters of different powers.

[0075] In this embodiment, the sealing member 4 is installed in cooperation with the first step 801, and the side walls of the first nozzle chamber 301 and the second nozzle chamber 302 are each provided with two nozzles. Specifically, the side wall of the first nozzle chamber 301 is provided with a third nozzle 503 and a fourth nozzle 504, and the side wall of the second nozzle chamber 302 is provided with a fifth nozzle 505 and a sixth nozzle 506.

[0076] When the first solenoid valve 701 is open, the first branch gas channel 202 is connected to the main gas channel 201, and the gas enters the first branch gas channel 202 from the main gas channel 201, and then enters the first nozzle chamber 301, and the gas can be ejected from the third nozzle 503 and the fourth nozzle 504. When the first solenoid valve 701 and the second solenoid valve 702 are both open, the second branch gas channel 203 is connected to the first branch gas channel 202, and the gas enters the first branch gas channel 202 from the main gas channel 201 and then enters the second branch gas channel 203, and then enters the second nozzle chamber 302. The gas can be ejected not only from the third nozzle 503 and the fourth nozzle 504, but also from the fifth nozzle 505 and the sixth nozzle 506.

[0077] Furthermore, the blocking member 4 is installed with an interference fit with the assembly structure.

[0078] To enhance the secure fit, the plugging member 4 is installed with an interference fit on the assembly structure. Once installed, the plugging member 4 serves as the shared sidewall between the first nozzle chamber 301 and the second nozzle chamber 301, requiring it to withstand the pressure differential between the two nozzle chambers. The interference fit between the plugging member 4 and the assembly structure ensures a secure fit and prevents it from falling off, thereby improving structural reliability and ensuring the service life of the gas distributor.

[0079] Furthermore, a first nozzle 501 is provided on the side wall of the main air channel 201 .

[0080] 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 suitable for the first power setting (low-fire mode) of the gas water heater to meet the user's need for low-fire operation. The location of the first nozzle 501 should not affect the arrangement of other gas channels.

[0081] 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 provided on the side wall of the third nozzle chamber 303.

[0082] In the gas distribution device of this embodiment, the gas channel further includes a third gas channel 204, which 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 3 As 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.

[0083] In this embodiment, the third branch air channel 204 and the main air channel 201 are connected or disconnected via the third solenoid valve 703 , that is, the third solenoid valve 703 can control the connection and disconnection between the third branch air channel 204 and the main air channel 201 .

[0084] The nozzle chamber also includes a third nozzle chamber 303, which is connected to the third air 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 of the gas water heater (medium or small fire working state), which can meet different usage requirements.

[0085] To make the gas distributor more uniform and facilitate subsequent integration with the burner, the axes of the first nozzle 501, second nozzle 502, third nozzle 503, fourth nozzle 504, fifth nozzle 505, and sixth nozzle 506 are parallel and coplanar. This six-nozzle gas distributor is suitable for a 30kW, 16-liter water heater.

[0086] It should be noted that, according to the different gas water heaters that the gas distribution device matches, after the blocking member 4 is assembled, each nozzle can be formed through subsequent processing.

[0087] The gas distribution device of this embodiment can be applied to water heaters with different loads, which can reduce the subsequent processing steps, improve the versatility of the product, narrow the load fluctuation range, and enhance the user experience; at the same time, it increases the overlapping area of ​​adjacent working gears, making the firepower switching smoother and reducing safety hazards such as accidental flameout.

[0088] 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.

[0089] like Figure 9 As shown, the outer wall of the core-pulling portion 6 is provided with a molding structure, of which at least two types are provided, and the molding structures match the assembly structure of the gas distributor. In this embodiment, two molding structures are provided. Specifically, the molding structures are protruding structures 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, where φC>φD. The larger molding structure can form the first step 801, and the smaller molding structure can form the second step 802.

[0090] This mold can die-cast at least two assembly structures at one time, thereby producing the gas distribution device of this embodiment, 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. There is no need to separately open a mold and cast the gas distribution device that matches the gas water heater of each load, so that one mold can produce gas distribution devices with different needs, which greatly simplifies the manufacturing process and manufacturing costs.

[0091] This embodiment also provides a water heater, including the gas distribution device of this embodiment.

[0092] The gas distribution device structures that match water heaters with different powers (different loads) are different. The gas distribution device of this embodiment can be applied to water heaters with different powers, has 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.

[0093] 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.

[0094] 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:

[0095] When the first fire gear is in operation, the first nozzle 501 of the main air channel 201 supplies air;

[0096] When the second fire gear is in operation, the first nozzle 501 and the second nozzle 502 of the third air channel 204 supply air;

[0097] 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 air;

[0098] 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.

[0099] 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 select the desired level by operating the corresponding control structure on the water heater.

[0100] 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.

[0101] 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 the burner is in a low-fire working state.

[0102] 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 in the medium and small fire working state.

[0103] When the user selects the third fire gear, the first solenoid valve 701 opens, the first branch air channel 202 is connected to the main air channel 201, the gas enters the first branch air channel 202 from the main air channel 201, and then enters the first nozzle chamber 301, and the gas can be ejected from the third nozzle 503 and the fourth nozzle 504. The third solenoid valve 703 is also in the open state, and 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.

[0104] When the user selects the fourth fire power gear, the first solenoid valve 701 and the second solenoid valve 702 are both opened, the second branch air channel 203 is connected to the first branch air channel 202, and the gas enters the first branch air channel 202 from the main air channel 201 and then enters the second branch air channel 203, and then enters the second nozzle chamber 302. The gas can not only be ejected 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 the 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.

[0105] like Figure 6-Figure 8 The 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 conjunction 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.

[0106] like Figure 8 As shown, in the previous embodiment, the blocking member 4 is installed in conjunction with the first step 801, as indicated by the dashed line position m in the figure. In this embodiment, the blocking member 4 is installed in conjunction with the second step 802. As a result, the internal volume of the first nozzle chamber 301 decreases, while the internal volume of the second nozzle chamber 302 increases. Consequently, the sidewall area of ​​the first nozzle chamber 301 decreases, while the sidewall area of ​​the second nozzle chamber 302 increases. The sidewalls of the first nozzle chamber 301 are provided with two nozzles, namely the third nozzle 503 and the fourth nozzle 504, while the sidewalls of the second nozzle chamber 302 are provided with three nozzles, namely the fifth nozzle 505, the sixth nozzle 506, and the seventh nozzle 507. This seven-nozzle gas distributor is suitable for 34kW, 18-liter water heaters.

[0107] like Figure 6 As shown, the arrow direction is the direction of gas flow.

[0108] When controlling the gas separation device of this embodiment, the control method includes:

[0109] 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 the burner is in a low-fire working state.

[0110] 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 in the medium and small fire working state.

[0111] When the user selects the third fire gear, the first solenoid valve 701 opens, the first branch air channel 202 is connected to the main air channel 201, the gas enters the first branch air channel 202 from the main air channel 201, and then enters the first nozzle chamber 301, and the gas can be ejected from the third nozzle 503 and the fourth nozzle 504. The third solenoid valve 703 is also in the open state, and 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.

[0112] When the user selects the fourth fire power gear, the first solenoid valve 701 and the second solenoid valve 702 are both opened, the second branch gas channel 203 is connected to the first branch gas channel 202, and the gas enters the first branch gas channel 202 from the main gas channel 201 and then enters the second branch gas channel 203, and then enters the second nozzle chamber 302. The gas can not only be ejected 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 the 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.

[0113] In other embodiments, the gas distributor can be provided with three, four, or five assembly structures, depending on the size of the gas distributor body 1 and different gas distribution requirements. Similarly, the sidewalls of the first nozzle chamber 301 and the second nozzle chamber 302 can be provided with four, five, or six nozzles, etc. The number of nozzles on the sidewalls of the first nozzle chamber 301 and the second nozzle chamber 302 can be the same or different.

[0114] Although the embodiments of the present invention have been described with reference to 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 shall fall within the scope defined by the appended claims.

Claims

1. A gas separation device, characterized in that: include: ontology(1); An airway is provided in the body (1), the airway comprising a main airway (201), a first branch airway (202) and a second branch airway (203), the main airway (201) and the first branch airway (202) being connectable or disconnectable, and the first branch airway (202) and the second branch airway (203) being connectable or disconnectable; a nozzle chamber disposed in the body (1), the nozzle chamber comprising a first nozzle chamber (301) and a second nozzle chamber (302) disposed 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 conjunction 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 conjunction 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), wherein the first step (801) is 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 both provided with two of the nozzles; or, the blocking member (4) is mounted in cooperation with the second step (802), and 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), which can be connected or disconnected with the main air channel (201); 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 provided on the side wall of the third nozzle chamber (303).

11. A mold, characterized in that: Used to manufacture the gas separation device according to any one of claims 1 to 10, the mold includes 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 that matches the assembly structure of the gas separation device.

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

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