CN111550786A

CN111550786A - Gas distribution part, gas water heater and sectional combustion method thereof

Info

Publication number: CN111550786A
Application number: CN202010455436.5A
Authority: CN
Inventors: 瞿福元; 高砚庄; 林钦; 林玉绵; 胡勇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-08-18

Abstract

The invention relates to a gas distribution component, a gas water heater and a sectional combustion method thereof. The gas distribution piece includes: the device comprises a shell and three segment valves arranged on the shell; the shell is provided with an air inlet, a normally open air cavity and three adjusting air cavities, wherein the normally open air cavity and the adjusting air cavity are both communicated with the air inlet and are provided with air outlets, the number of the air outlets on the normally open air cavity is 1, and the number of the air outlets on the three adjusting air cavities is 1, 2 and 2 or 1, 1 and 3 respectively; each segment valve is used for opening or closing a channel between the corresponding regulating air cavity and the air inlet. According to the gas distribution component, 6-section power combustion of 1, 2, 3, 4, 5 and 6 fire discharge can be realized through the three section valves, any adjacent 2-section power in the 6-section power can be ensured to have a large enough overlapping area, the problem that the outlet water temperature is suddenly cooled and suddenly heated is solved, and good user experience is brought to users.

Description

Gas distribution part, gas water heater and sectional combustion method thereof

Technical Field

The invention relates to the technical field of water heaters, in particular to a gas distribution component, a gas water heater and a sectional combustion method thereof.

Background

The top-pumping gas instantaneous water heater is generally provided with 6 rows of fire rows, and the combustion mode of the top-pumping gas instantaneous water heater is generally a two-section combustion mode, namely a 2-row fire or 6-row fire combustion mode, or a 3-row fire or 6-row fire combustion mode. However, the two-segment combustion mode is not reasonable, especially the maximum power of 2 rows of fire and the minimum power of 6 rows of fire in the 2 rows of fire or 6 rows of fire combustion mode have no overlapping area or the overlapping area is too small, and meanwhile, the deviation of factors such as gas source or pressure exists, which inevitably causes the power segment of the water heater to be out of gear, forces the electromagnetic valve for segment to be switched back and forth, causes the temperature fluctuation of the outlet water to be difficult to keep constant, and greatly reduces the user experience.

Disclosure of Invention

In view of the above, it is necessary to provide a gas distribution member, a gas water heater and a staged combustion method thereof.

A gas distribution member, comprising: a housing and three segment valves disposed on the housing;

the shell is provided with an air inlet, a normally open air cavity and three adjusting air cavities, wherein the normally open air cavity and the adjusting air cavity are both communicated with the air inlet and are provided with air outlets, the number of the air outlets on the normally open air cavity is 1, and the number of the air outlets on the three adjusting air cavities is 1, 2 and 2 or 1, 1 and 3 respectively;

each of the segment valves is used for opening or closing a passage between the corresponding regulation air cavity and the air inlet.

In one embodiment, the normally open air cavity and the three regulating air cavities are distributed in parallel;

the shell is also provided with an air inlet cavity communicated with the air inlet and an air channel used for enabling the air inlet cavity to be communicated with the normally open air cavity and the adjusting air cavity respectively.

In one embodiment, the normally open air cavity and the air inlet cavity are distributed coaxially;

the three regulating air cavities are positioned at two sides of the normally open air cavity.

In one embodiment, each of the segment valves comprises: the shell and the telescopic valve core are fixed on the outer wall of the shell;

the valve core can extend into the corresponding adjusting air cavity through the air outlet channel or retract into the shell.

In one embodiment, a nozzle is mounted at the air outlet.

In one embodiment, the shell is provided with a first mounting part and a second mounting part;

the first mounting piece is used for fixing the gas distribution piece and is provided with at least one first fastener mounting hole;

the second mounting member is in communication with the air inlet and has at least one second fastener mounting hole.

In one embodiment, the housing is further provided with a clamping piece;

the retainer includes: two clamping claws which are distributed oppositely can be matched to clamp the fuel gas distribution part.

In one embodiment, the shell is further provided with a pressure taking port, and the pressure taking port is communicated with the normally open air cavity.

In one embodiment, the pressure taking port is provided with a pressure taking nozzle.

A gas water heater, comprising: a water heater body and a gas distribution member as described in any of the above;

the gas distribution member is mounted on the water heater body.

In one embodiment, an ignition needle, a fire detection needle and 6 fire rows distributed side by side are arranged on the water heater main body;

each fire row corresponds to the air outlet on the fuel gas distribution piece one by one;

the ignition needle and the fire detection needle point to the fire grate corresponding to the air outlet on the normally open air cavity of the gas distribution component.

A staged combustion method for the gas water heater, the staged combustion method comprising:

and opening the corresponding sectional valve on the gas distribution part of the gas water heater to enable the normally open gas cavity or/and the adjusting gas cavity corresponding to the sectional valve to ventilate to the corresponding fire grate, so that one-row fire combustion, two-row fire combustion, four-row fire combustion or six-row fire combustion are realized, and the four-section combustion is realized.

In one embodiment, the staged combustion method further comprises:

and opening the corresponding segmented valve on the gas distribution part to enable the normally open gas cavity or/and the adjusting gas cavity corresponding to the segmented valve to ventilate the corresponding fire grate, so that three-row fire combustion or five-row fire combustion is realized, and six-segment combustion is realized.

Foretell gas distribution spare, set up a normally open air cavity and three regulation air cavity on the casing, and the gas outlet figure on these three regulation air cavity is 1 respectively, 2 and 2 or 1, 1 and 3, so the passageway between the air inlet 111 of each regulation air cavity and casing is opened or closed to three section valve of accessible, in order to adjust whether these 5 gas outlets ventilate to corresponding fire row, and then can guarantee 1 row of minimum power burning, it is too hot and extravagant gas to go out water in summer, waste water's problem, also can realize 1, 2, 3, 4, 5, 6 section power burning of arranging fire, can guarantee that arbitrary adjacent 2 sections power has enough overlap area in these 6 sections power, make things convenient for full power section thermostatic control, the problem of the cold neglected heat of leaving water temperature has been solved, bring good user experience for the user.

Drawings

Fig. 1 and 7 are schematic structural views of a gas distribution member according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of a fuel gas distributing member according to an embodiment of the present invention, in a state where each of the segment valves is closed;

FIG. 3 is a schematic view of the internal gas flow of a gas distribution assembly according to an embodiment of the present invention with each segment valve in an open state;

FIG. 4 is a schematic view of the internal structure of a gas distribution member according to another embodiment of the present invention, with each segment valve in a closed state;

FIG. 5 is a schematic view of the internal gas flow of a gas distribution assembly according to another embodiment of the present invention with each segment valve in an open state;

FIG. 6 is a schematic diagram illustrating the relationship between the power and the fire row number of a gas water heater according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a water heater main body according to an embodiment of the present invention.

Wherein the various reference numbers in the drawings are described below:

100-a gas distribution member;

110-a housing;

111-gas inlet 111;

112-normally open air cavity;

113-a regulated air cavity;

113 a-a first conditioned air cavity;

113 b-a second conditioned air cavity;

113 c-a third conditioned air cavity;

114-an air outlet;

115-an air intake chamber;

116-a ventilation channel;

120-a segment valve;

120 a-first section valve;

120 b-a second section valve;

120 c-a third section valve;

121-a housing;

122-a valve core;

130-a nozzle;

140-a first mount;

141-first fastener mounting holes;

150-a second mount;

151-second fastener mounting holes;

160-a clip;

161-clamping jaws;

170-pressure taking mouth;

200-a water heater body;

210-fire grate;

220-an ignition needle;

230-fire detection needle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, an embodiment of the present invention provides a gas distribution member 100, and the gas distribution member 100 includes: a housing 110 and three segment valves 120 disposed on the housing 110; as shown in fig. 2 to 5, the casing 110 has an air inlet 111, a normally open air chamber 112, and three regulating air chambers 113, the normally open air chamber 112 and the regulating air chambers 113 are both communicated with the air inlet 111 and are both provided with air outlets 114, wherein the number of the air outlets on the normally open air chamber 112 is 1, and the number of the air outlets on the three regulating air chambers 113 is 2, 2 and 1 or 3, 1 and 1 respectively; each segment valve 120 serves to open or close a passage between the corresponding regulation air chamber 113 and the air inlet 111. It should be noted that, one air outlet 114 corresponds to one fire grate 210, and when the gas is discharged from the air outlet 114 and flows onto the fire grate 210, the fire grate 210 can perform combustion.

As an example, as shown in fig. 1 to 5 and 7, the housing 110 includes: the device comprises a first shell and a second shell which are vertically distributed and horizontally distributed, wherein the first shell is communicated with the second shell; an air inlet 111 is opened on the first housing, and a normally open air chamber 112 and a regulation air chamber 113 are opened on the second housing. Wherein, first casing and second casing are rectangular form. It should be noted that, when the normally open air cavity 112 and the adjustment air cavity 113 are processed in the second housing, a fabrication hole is firstly formed in the second housing, an air cavity processing tool (e.g. an electric drill) passes through the fabrication hole and enters the second housing for operation, and after the normally open air cavity 112 and the adjustment air cavity 113 are formed, the air cavity processing tool is taken out and plugs the fabrication hole in the second housing, so as to seal the normally open air cavity 112 and the adjustment air cavity 113

As an example, the segment valve 120 is a solenoid valve electrically connected to an electronic control board of the gas water heater.

In order to facilitate description of how the gas distributing member 100 is segmented, as shown in fig. 2 and 3, the three segment valves 120 of the present application are respectively a first segment valve 120a, a second segment valve 120b and a third segment valve 120c, the three regulating air cavities 113 are respectively a first regulating air cavity 113a, a second regulating air cavity 113b and a third regulating air cavity 113c, wherein the number of the air outlets on the three regulating air cavities 113 can be divided into two cases, the first case is shown in fig. 2 and 3, the number of the air outlets on the first regulating air cavity 113a is 1, the number of the air outlets on the second regulating air cavity 113b is 2, and the number of the air outlets on the third regulating air cavity 113c is 2; in the second case, as shown in fig. 4 and 5, the number of air outlets on the first conditioning air chamber 113a is 1, the number of air outlets on the second conditioning air chamber 113b is 1, and the number of air outlets on the third conditioning air chamber 113c is 3.

In the following, with reference to fig. 3, with respect to the first case described above, it is described how the gas distribution member 100 is segmented:

and closing the first section valve 120a, the second section valve 120b and the third section valve 120c, enabling the gas to enter from the gas inlet 111 of the shell 110 and flow into the normally open gas cavity 112 along the gas flow direction I, and enabling the gas to flow out from one gas outlet 114 on the normally open gas cavity 112 and flow to the corresponding fire grate 210, so that one-row fire combustion is realized.

The first segment valve 120a is opened, the second segment valve 120b and the third segment valve 120c are closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I and flows into the first adjusting gas cavity 113a along the gas flow direction II respectively, then the gas flows out from one gas outlet 114 on the normally open gas cavity 112 and one gas outlet 114 on the first adjusting gas cavity 113a respectively and is directed to the corresponding fire grate 210, and the two-stage fire combustion is realized.

The second section valve 120b is opened, the first section valve 120a and the third section valve 120c are closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I and flows into the second regulation gas cavity 113b along the gas flow direction III, and then the gas flows out from one gas outlet 114 on the normally open gas cavity 112 and two gas outlets 114 on the second regulation gas cavity 113b and is arranged to the corresponding fire grate 210, so that three-fire-discharge combustion is realized. Of course, when the third segment valve 120c is opened and the first segment valve 120a and the second segment valve 120b are closed, the triple-fire combustion can be performed.

The first segment valve 120a and the second segment valve 120b are opened, the third segment valve 120c is closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I, flows into the first regulation gas cavity 113a along the gas flow direction II and flows into the second regulation gas cavity 113b along the gas flow direction III, and then the gas flows out from one gas outlet 114 on the normally open gas cavity 112, one gas outlet 114 on the first regulation gas cavity 113a and two gas outlets 114 on the second regulation gas cavity 113b and flows towards the corresponding fire grate 210, so that four-fire-discharge combustion is realized. Of course, the four-fire combustion can be realized by opening the first segment valve 120a, the third segment valve 120c, and closing the second segment valve 120 b.

The second section valve 120b and the third section valve 120c are opened, the first section valve 120a is closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I, flows into the second regulation gas cavity 113b along the gas flow direction III and flows into the third regulation gas cavity 113c along the gas flow direction IV, and then flows out from one gas outlet 114 on the normally open gas cavity 112, two gas outlets 114 on the second regulation gas cavity 113b and two gas outlets 114 on the third regulation gas cavity 113c and flows towards the corresponding fire grate 210, so that five-row fire combustion is realized.

The first segment valve 120a, the second segment valve 120b and the third segment valve 120c are opened, gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction i, flows into the first regulation gas cavity 113a along the gas flow direction ii, flows into the second regulation gas cavity 113b along the gas flow direction iii and flows into the third regulation gas cavity 113c along the gas flow direction iv, and then the gas flows out from one gas outlet 114 on the normally open gas cavity 112, one gas outlet 114 on the first regulation gas cavity 113a, two gas outlets 114 on the second regulation gas cavity 113b and two gas outlets 114 on the third regulation gas cavity 113c and flows out side by side to the corresponding fire grates 210, so that six-row fire combustion is realized.

In the following, with reference to fig. 5, with respect to the second case described above, it is described how the gas distribution member 100 is segmented:

The first segment valve 120a is opened, the second segment valve 120b and the third segment valve 120c are closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I and flows into the first adjusting gas cavity 113a along the gas flow direction II respectively, then the gas flows out from one gas outlet 114 on the normally open gas cavity 112 and one gas outlet 114 on the first adjusting gas cavity 113a respectively and is directed to the corresponding fire grate 210, and the two-stage fire combustion is realized. Of course, the second segment valve 120b is opened, and the first segment valve 120a and the third segment valve 120c are closed, so that the two-shot combustion can be realized.

The first segment valve 120a and the second segment valve 120b are opened, the third segment valve 120c is closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I, flows into the first regulation gas cavity 113a along the gas flow direction II and flows into the second regulation gas cavity 113b along the gas flow direction III, and then the gas flows out from one gas outlet 114 on the normally open gas cavity 112, one gas outlet 114 on the first regulation gas cavity 113a and one gas outlet 114 on the second regulation gas cavity 113b and flows towards the corresponding fire grate 210, so that three-fire-discharge combustion is realized.

Opening the third section valve 120c, closing the first section valve 120a and the second section valve 120b, the gas enters from the gas inlet 111 of the casing 110 and flows into the normally open gas chamber 112 along the gas flow direction i and flows into the third regulating gas chamber 113c along the gas flow direction iv, and then the gas flows out from one gas outlet 114 on the normally open gas chamber 112 and three gas outlets 114 on the third regulating gas chamber 113c and is discharged to the corresponding fire grate 210, so as to realize four-fire-discharge combustion.

The first segment valve 120a and the third segment valve 120c are opened, the second segment valve 120b is closed, the gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction I, flows into the first regulation gas cavity 113a along the gas flow direction II and flows into the third regulation gas cavity 113c along the gas flow direction IV, and then flows out from one gas outlet 114 on the normally open gas cavity 112, one gas outlet 114 on the first regulation gas cavity 113a and three gas outlets 114 on the third regulation gas cavity 113c and flows towards the corresponding fire grate 210, so that five-row fire combustion is realized. Of course, if the second segment valve 120b and the third segment valve 120c are opened and the first segment valve 120a is closed, the five-row combustion can be realized.

The first segment valve 120a, the second segment valve 120b and the third segment valve 120c are opened, gas enters from the gas inlet 111 of the shell 110 and flows into the normally open gas cavity 112 along the gas flow direction i, flows into the first regulation gas cavity 113a along the gas flow direction ii, flows into the second regulation gas cavity 113b along the gas flow direction iii and flows into the third regulation gas cavity 113c along the gas flow direction iv, and then the gas flows out from one gas outlet 114 on the normally open gas cavity 112, one gas outlet 114 on the first regulation gas cavity 113a, one gas outlet 114 on the second regulation gas cavity 113b and three gas outlets 114 on the third regulation gas cavity 113c and flows out side by side to the corresponding fire grates 210, so that six-row fire combustion is realized.

It can be seen that the gas distribution member 100 provided in the above two cases can realize six-stage combustion by the cooperation of the first segment valve 120a, the second segment valve 120b and the third segment valve 120c, i.e. 1 row fire, 2 row fire, 3 row fire, 4 row fire, 5 row fire or 6 row fire combustion, taking a gas water heater with 25KW power as an example, the power of each row of fire 210 is 1.6KW to 4.2KW, it should be noted that the maximum power refers to the maximum power on the premise that the CO content in the combustion flue gas is qualified, the minimum power refers to the minimum power under the bad conditions that the flame combustion is stable and the tempering does not occur, etc. table 1 and fig. 6 both show the power ranges corresponding to different row numbers of fire, and as can be seen from fig. 6, there is an overlapping region between the power range of 1 row fire and the power range of 2 row fire, and the overlapping value is △ W₁(i.e. the value of the maximum power of 1 row of fire minus the minimum power of 2 rows of fire) is 1KW, and so on, the overlap value between 2 rows of fire and 3 rows of fire is △ W₂At 3.6KW, overlap value between 3 rows of fire and 4 rows of fire △ W₃At 6.2KW, overlap value of △ W between 4 rows of fire and 5 rows of fire₄At 8.8KW, overlap value between 5 and 6 rows of fire △ W₅11.4 KW. visible, △ W₁、△W₂、△W₃、△W4、△W₅The power stability condition of the gas water heater can be met, even if deviation caused by factors such as a gas source or pressure and the like does not occur, the power section of the gas water heater cannot be broken, the full-power section constant temperature control is facilitated, the problem that the water outlet temperature is suddenly cooled and suddenly heated due to the fact that the electromagnetic valve is switched back and forth is solved, and user experience is improved.

TABLE 1

Number of fire rows	Total Power (Kw)
		1	1.6～4.2
2	3.2～8.4
		3	4.8～12.6
4	6.4～16.8
		5	8～21
6	9.6～25.2

In summary, as described above for the gas distributing member 100, the casing 110 is provided with a normally open gas chamber 112 and three regulating gas chambers 113, and the number of the air outlets on the three regulating air chambers 113 is 1, 2 and 2 or 1, 1 and 3, so that the passage between each of the damper air chambers 113 and the air inlet 111 of the housing 110 can be opened or closed by the three segment valves 120, to adjust whether the 5 air outlets 114 are ventilated to the corresponding fire grate 210, thereby ensuring the combustion of the 1-row fire with the minimum power, solving the problems of excessive hot water in summer, waste of fuel gas and waste of water, realizing the 6-section power combustion of the 1, 2, 3, 4, 5 and 6-row fire, any adjacent 2 sections of power in the 6 sections of power can be ensured to have a large enough overlapping area, so that the constant temperature control of the full-power section is facilitated, the problem that the temperature of the outlet water is suddenly cooled and suddenly heated is solved, and good user experience is brought to users.

As shown in fig. 2, in some embodiments of the present invention, the normally open air chamber 112 and the three regulating air chambers 113 are distributed in parallel; the housing 110 further has an air intake chamber 115 communicating with the air intake port 111, and an air passage 116 for communicating the air intake chamber 115 with the normally open air chamber 112 and the regulated air chamber 113, respectively. Therefore, the normally open air cavity 112, the adjusting air cavity 113 and the air inlet 111 can be communicated without opening 4 independent air passages, and the internal structure of the shell 110 can be simplified, so that the structure is compact. It should be noted that, when the air intake cavity 115 is machined in the first housing, a fabrication hole is firstly formed in the first housing, an air cavity machining tool (for example, an electric drill) passes through the fabrication hole and enters the first housing for operation, and after the air intake cavity 115 is formed, the air cavity machining tool is taken out and plugs the fabrication hole in the first housing.

As an example, as shown in fig. 2, the air intake chamber 115 is opened in a vertical direction on a first housing of the housing 110, and the air passage 116 is opened in a horizontal direction on a second housing of the housing 110.

Further, as shown in fig. 2, in some embodiments of the present invention, the normally open air cavity 112 is coaxially distributed with the air intake cavity 115; three regulation air chambers 113 are located at both sides of the normally open air chamber 112. The shell 110 can be arranged into a symmetrical structure according to the distribution mode of the normally open air cavity 112 and the adjusting air cavity 113, so that the appearance attractiveness can be improved; in addition, the gas flowing out from the gas inlet cavity 115 can flow to both sides, so that the impact force of the gas on the shell 110 can be balanced, and the service life of the gas distributing component 100 can be prolonged.

Alternatively, as shown in fig. 2, the first regulation air chamber 113a is distributed at one side of the normally open air chamber 112, and the second and third

regulation air chambers

113b and 113c are distributed at the other side of the normally open air chamber 112.

In particular to some embodiments of the present invention, as shown in fig. 4, each segment valve 120 includes: a housing 121 and a retractable valve element 122 fixed on the outer wall of the housing 110; the valve core 122 can extend into the corresponding regulating air cavity 113 through the air outlet channel 116 or retract into the casing 121. Therefore, the segmented valve 120 is not required to be installed in the air-passing channel 116, the channel between the adjusting air cavity 113 and the air inlet 111 can be opened or closed, the segmented valve 120 is convenient to assemble and disassemble, and the later-stage maintenance of the segmented valve 120 is facilitated.

Optionally, the valve core 122 of the segment valve 120 is electrically connected to a main controller of the gas water heater, and the main controller is used for controlling the expansion and contraction of the valve core 122 to open or close a channel between the regulation air chamber 113 and the air inlet 111.

Alternatively, the housing 121 of the segment valve 120 may be fixed to the second housing of the housing 110 by means of screws, welding, or the like.

As shown in fig. 1-5, in some embodiments of the present invention, a nozzle 130 is mounted at the air outlet 114. The nozzle 130 facilitates the outward discharge of the gas in the normally open gas chamber 112 or the regulated gas chamber 113. It should be noted that the nozzle 130 is also installed on the air outlet 114 shown in fig. 2 to 5, and the nozzle 130 is not installed on the air outlet 114 for the convenience of describing the internal structure of the gas distribution member 100 in the present application.

As shown in fig. 1, in some embodiments of the present invention, a first mount 140, a second mount 150 are provided on the housing 110; the first mounting member 140 is used to fix the gas distribution member 100 and has at least one first fastener mounting hole 141; the second mounting member 150 communicates with the air inlet 111 and has at least one second fastener mounting hole 151. The gas distribution piece 100 is secured to the gas water heater by a first mounting member 140 and is connected to an external gas pipe by a second mounting member 150.

Alternatively, the first and second mounting

members

140 and 150 may each have a plate-shaped structure with a rectangular, circular, or diamond shape, and the first and second

fastener mounting holes

141 and 151 may be used for passing a fastener such as a screw or a bolt. Wherein the first mounting member 140 may be welded or cast to an outer wall of a second housing of the housing 110, for example, a side wall perpendicular to a side wall on which the nozzle 130 is mounted; the second mounting member 150 may be mounted on the outer wall of the first housing of the housing 110 by welding or casting.

Further, as shown in fig. 1, in some embodiments of the present invention, a retainer 160 is further disposed on the housing 110; the retainer 160 includes: two clamping claws 161 are oppositely arranged, and the two clamping claws 161 can be matched to clamp the gas distribution member 100. The two clamping claws 161 of the clamping member 160 are clamped in the clamping grooves of the gas water heater, and then the first mounting member 140 is fixed on the gas water heater by using a fastening member (such as a screw) so as to mount the gas distribution member 100. Retainer 160 not only facilitates subsequent securing of gas dispensing member 100 to the gas water heater via first mounting member 140, but also improves the security of the mounting of gas dispensing member 100.

Alternatively, as shown in fig. 1, the clamping claws 161 may be provided in a trapezoidal structure, and may be integrally molded by casting or the like or welded to the second housing of the housing 110. Wherein the two clamping claws 161 and the first mounting part 140 are distributed on the opposite ends of the second housing.

In some embodiments of the present invention, the housing 110 further has a pressure tap, which communicates with the normally open air chamber 112. The pressure measuring equipment (such as a pressure sensor) is arranged at the pressure taking port, so that the gas pressure in the gas distribution chamber can be monitored in real time, and the use safety of the gas water heater is ensured.

Alternatively, the pressure taking port may be formed on a second housing of the housing 110, and the pressure taking port and the nozzle 130 are installed on two side walls that are oppositely distributed.

Further, as shown in fig. 7, in some embodiments of the present invention, a pressure tapping nozzle 170 is installed at the pressure tapping port. The pressure tap 170 may change the installation location of the pressure measuring device, which facilitates the pressure measuring device to monitor the gas pressure within the gas distribution member 100. It should be noted that, firstly, a fabrication hole is opened on the pressure tap 170, an air cavity processing tool (for example, an electric drill) passes through the fabrication hole and enters the pressure tap 170 for operation, and after the pressure tap 170 is communicated with the adjustment air cavity 113, the air cavity processing tool is taken out and blocks the fabrication hole on the pressure tap 170, so as to seal the pressure tap 170.

Alternatively, the pressure nozzle 170 may be fixed to the housing 110 by integral molding such as casting.

Another embodiment of the present invention provides a gas water heater, including: a water heater body 200 (see fig. 8) and the gas distribution member 100 described above; the gas distribution member 100 is mounted on the water heater body 200.

As described above, the gas water heater, the case 110 of the gas distributing member 100 is provided with the normally open gas chamber 112 and the three regulating gas chambers 113, and the number of the air outlets on the three regulating air chambers 113 is 1, 2 and 2 or 1, 1 and 3, so that the passage between each of the damper air chambers 113 and the air inlet 111 of the housing 110 can be opened or closed by the three segment valves 120, to adjust whether the 5 air outlets 114 are ventilated to the corresponding fire grate 210, thereby ensuring the combustion of the 1-row fire with the minimum power, solving the problems of excessive hot water in summer, waste of fuel gas and waste of water, realizing the 6-section power combustion of the 1, 2, 3, 4, 5 and 6-row fire, any adjacent 2 sections of power in the 6 sections of power can be ensured to have a large enough overlapping area, so that the constant temperature control of the full-power section is facilitated, the problem that the temperature of the outlet water is suddenly cooled and suddenly heated is solved, and good user experience is brought to users.

As shown in fig. 2, in some embodiments of the present invention, an ignition needle 220, a

fire detection needle

230 and 6 fire rows 210 distributed side by side are disposed on the gas water heater main body; each fire row 210 corresponds to the gas outlets 114 on the gas distribution member 100 one by one; the ignition needle 220 and the fire detection needle 230 point to the fire grate 210 corresponding to the air outlet 114 on the normally open air cavity. Because the fire row 210 corresponding to the air outlet 114 on the normally open air cavity 112 is normally combusted, and is also the fire row 210 for igniting combustion, for this, the ignition needle 220 is placed above the fire row 210 for ignition according to requirements; and because the fire grate 210 is normally burnt, the fire detection needle 230 points to the fire grate 210 for monitoring the flame condition in real time and detecting whether a flameout phenomenon exists.

Alternatively, the number of the ignition needles 220 may be set to 2 to form a double needle ignition, avoiding ignition errors.

Another embodiment of the present invention further provides a staged combustion method for a gas water heater, which includes: and opening the corresponding sectional valve 120 on the gas distributing part 100 of the gas water heater to ensure that the normally open gas cavity 112 corresponding to the sectional valve 120 or/and the fire grate 210 corresponding to the adjusting gas cavity 113 are ventilated, so that one-row fire combustion, two-row fire combustion, four-row fire combustion or six-row fire combustion is realized, and four-section combustion is realized.

As can be known from table 1 and figure 6, the overlapping value between the power scope of 1 row of fire and the power scope of 2 row of fire is 1KW, analogize in proper order, the overlapping value between 2 row of fire and 4 row of fire is 2KW, the overlapping value between 4 row of fire and 6 row of fire is 7.2KW, above-mentioned 3 overlapping values all are greater than or equal to 1KW, this can satisfy the power stability of water heater, even if the deviation that factors such as gas air supply or pressure caused, can not lead to the power section of combustor to appear breaking the shelves yet, solve because the solenoid valve switches round trip and the outlet water temperature that causes neglects the cold and neglects the hot problem, improve user experience.

Further, in some embodiments of the present invention, the staged combustion method further comprises: and opening the corresponding sectional valve 120 on the gas distribution member 100, so that the normally open gas cavity 112 or/and the adjusting gas cavity 113 corresponding to the sectional valve 120 ventilates to the corresponding fire grate 210, and further three-row fire combustion or five-row fire combustion is realized, so as to realize six-section combustion. Thus, the full-power section constant temperature control can be realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A gas distribution member, characterized in that said gas distribution member (100) comprises: a housing (110) and three segment valves (120) disposed on the housing (110);

the shell (110) is provided with an air inlet (111), a normally open air cavity (112) and three adjusting air cavities (113), the normally open air cavity (112) and the adjusting air cavity (113) are both communicated with the air inlet (111) and are both provided with air outlets (114), wherein the number of the air outlets on the normally open air cavity (112) is 1, and the number of the air outlets on the three adjusting air cavities (113) is 1, 2 and 2 or 1, 1 and 3 respectively;

each of the segment valves (120) is used to open or close a passage between the corresponding regulation air chamber (113) and the air inlet (111).

2. The gas distribution member according to claim 1, characterized in that the normally open gas chamber (112) and the three regulating gas chambers (113) are distributed in parallel;

the shell (110) is also provided with an air inlet cavity (115) communicated with the air inlet (111) and an air distribution channel (116) used for enabling the air inlet cavity (115) to be communicated with the normally open air cavity (112) and the adjusting air cavity (113) respectively.

3. The gas distributor according to claim 2, wherein the normally open gas chamber (112) is coaxial with the inlet chamber (115);

the three adjusting air chambers (113) are positioned at two sides of the normally open air chamber (112).

4. The gas distribution member according to claim 2, wherein each of said segment valves (120) comprises: a shell (121) and a telescopic valve core (122) which are fixed on the outer wall of the shell (110);

the valve core (122) can extend into the corresponding regulating air cavity (113) through the air outlet channel (116) or retract into the shell (121).

5. A gas distribution member according to any one of claims 1 to 4, wherein a nozzle (130) is mounted at the gas outlet (114).

6. A gas distribution member according to any one of claims 1 to 4, wherein the housing (110) is provided with a first mounting member (140), a second mounting member (150);

the first mounting part (140) is used for fixing the gas distribution part (100) and is provided with at least one first fastener mounting hole (141);

the second mounting member (150) is in communication with the air inlet (111) and has at least one second fastener mounting hole (151).

7. Gas distribution member according to claim 6, characterized in that said housing (110) is further provided with a clamping member (160);

the retainer (160) includes: two clamping claws (161) are oppositely distributed, and the two clamping claws (161) can be matched to clamp the gas distribution component (100).

8. The gas distribution member according to any one of claims 1 to 4, wherein the housing (110) further has a pressure tapping port, and the pressure tapping port is communicated with the normally open gas chamber (112).

9. The gas distribution member according to claim 8, wherein a pressure tapping (170) is mounted at the pressure tapping.

10. A gas water heater, comprising: a water heater body (200) and a gas distribution element (100) according to any one of claims 1 to 9;

the gas distribution member (100) is mounted on the water heater body (200).

11. The gas water heater of claim 10, characterized in that the water heater body (200) is provided with an ignition needle (220), a fire detection needle (230) and 6 fire rows (210) distributed side by side;

each fire row (210) corresponds to the air outlets (114) on the gas distribution part (100) one by one;

the ignition needle (220) and the fire detection needle (230) point to the fire grate (210) corresponding to the air outlet (114) on the normally open air cavity (112) of the gas distribution component (100).

12. A staged combustion method for a gas water heater as recited in claim 10 or 11, wherein the staged combustion method comprises:

and opening a corresponding sectional valve (120) on a gas distribution part (100) of the gas water heater, so that a normally open gas cavity (112) or/and a regulating gas cavity (113) corresponding to the sectional valve (120) ventilates to a corresponding fire row (210), and further, one-row fire combustion, two-row fire combustion, four-row fire combustion or six-row fire combustion is realized, so that four-section combustion is realized.

13. The staged combustion method as defined in claim 12, wherein the staged combustion method further comprises:

and opening the corresponding segmented valve (120) on the gas distribution component (100), so that the normally open gas cavity (112) or/and the adjusting gas cavity (113) corresponding to the segmented valve (120) ventilates the corresponding fire row (210), and then three rows of fire are combusted or five rows of fire are combusted, so that six-segment combustion is realized.