WO2022152278A1 - Gas apparatus and gas water heater - Google Patents

Abstract

A gas apparatus (100), comprising: a housing (10), the housing comprising a frame body (11) and a cover plate (12), and the frame body having a top opening (111) and a front opening (112); a first subassembly (20), which is integrated with a heat exchanger (21) and a smoke hood (22) and is assembled at the top of the frame body and matches the top opening, with the cover plate being detachably connected to a front side edge of the frame body and the smoke hood; a second subassembly (30), which is integrated with a burner (31) and a gas distribution rod (32) and is assembled in the frame body and located at the bottom; and a fan subassembly (40), which is assembled on a bottom plate (115) of the frame body and located outside the frame body.

Description

Gas appliances and gas water heaters

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application "Gas Equipment" with the application number of 202120120973.4 and the application date of January 15, 2021, and claims the priority of the above-mentioned Chinese patent application. The entire contents of the above-mentioned Chinese patent application are hereby incorporated into this application as refer to.

technical field

The present application relates to the technical field of water heaters, and in particular, to a gas-fired equipment and a gas-fired water heater.

Background technique

In the related art, the burner part, the heat exchanger part, the hood part and the fan part of the gas equipment are usually independent of each other, and need to be assembled from multiple directions and angles. seal. This complex assembly method is difficult to achieve automatic production, the production efficiency is low, and after-sales maintenance is inconvenient.

SUMMARY OF THE INVENTION

The present application aims to solve one of the technical problems in the related art at least to a certain extent.

To this end, the present application proposes a gas equipment, which has high assembly efficiency, is convenient for maintenance, and is conducive to automated production.

The present application also proposes a gas water heater with the above gas equipment.

The gas equipment according to the embodiment of the application includes: a casing including a frame body and a cover plate, the frame body having a top opening and a front opening; a heat exchanger and a fume hood, the heat exchanger and the The fume hood is assembled on the top of the frame body and is matched with the top opening, the cover plate is detachably connected to the front side edge of the frame body and the fume hood; the burner and the air distribution rod, the The burner and the air distribution rod are assembled in the frame and located at the bottom; the fan part is assembled, and the fan part is assembled on the bottom plate of the frame and located outside the frame.

According to the gas equipment of the embodiment of the present application, by integrating a plurality of components on a part, and installing the parts on the frame as a whole, the assembly process between the components is reduced, and the installation is centralized on the frame. It is relatively simple, improves the overall assembly efficiency, facilitates maintenance, and is conducive to automated production.

Optionally, the frame body includes a left side plate, a rear side plate, a right side plate and a bottom plate, the heights of the left side plate and the right side plate are lower than the height of the rear side plate, and the heat exchange The left and right sides of the device are clamped and mounted on the left side plate and the right side plate respectively.

Optionally, one of the lower edge of the left end plate of the heat exchanger and the upper edge of the left side plate of the frame is provided with a first hook, and the other is provided with a first hook to cooperate with the first hook. Correspondingly, one of the lower edge of the right end plate of the heat exchanger and the upper edge of the right side plate of the frame is provided with a second hook, and the other is provided with a second hook. The second flange matched with the second hook.

Optionally, the rear plate of the hood is provided with a plurality of first positioning through holes, and correspondingly, the upper part of the rear side plate of the frame is provided with a plurality of second positioning through holes, the first positioning through holes. The hole and the second positioning through hole are locked by screws.

Optionally, the top surface of the fume hood is provided with a third flange extending upward, the cover plate is provided with a third hook, and the third flange is inserted into the third hook.

Optionally, the front side edge of the frame body is provided with a plurality of positioning flanges, and correspondingly, the cover plate is provided with a plurality of positioning notches, and the positioning flanges are clamped in the positioning notches.

Optionally, the lower side of the cover plate is provided with a third positioning through hole, and correspondingly, the front side of the bottom plate is provided with a fourth positioning through hole, and the third positioning through hole is connected with the fourth positioning through hole. The holes are closed with screws.

Optionally, the bottom plate is provided with a fan interface, the air outlet installed on the fan part corresponds to the fan interface, the fan part is equipped with a first positioning lug, and the bottom surface of the bottom plate is downward. A second positioning lug is extended, and the first positioning lug and the second positioning lug are locked by screws.

Optionally, the top of the fan assembly is provided with a positioning strip, the bottom plate is provided with a strip-shaped positioning hole, and the positioning strip is inserted into the strip-shaped positioning hole.

Optionally, the left inner wall and/or the right inner wall of the frame body are respectively provided with first cooling and heat insulation boards at intervals, thereby constructing a first air-cooling channel, the first air-cooling channel and the fan. The partially installed air outlets are connected, and at least a part of the air flow in the first air-cooling channel is blown toward the left and right ends of the heat exchanger.

Optionally, the bottom of the first air-cooling channel has an inlet, and the top of the first air-cooling channel has an outlet.

Optionally, the rear side plate of the frame body and/or the cover plate are respectively provided with second cooling and heat insulation plates at intervals, so as to construct a second air cooling channel that communicates with the air outlet of the fan unit. , a part of the second air-cooling channel is wrapped around the outer circumference of the heat exchanger.

Optionally, the second cooling and heat insulation board has a plurality of interception sections, the interception section has a transverse extension section and a longitudinal extension section, the transverse extension section extends from the inside to the outside, and the start end of the longitudinal extension section is the same as the length of the longitudinal extension section. The rear ends of the laterally extending sections are connected, the longitudinally extending sections are folded and extend upward and obliquely, and each of the intercepting sections has an outlet of the second air-cooling channel.

Optionally, each of the shut-off sections has an outlet formed in the laterally extending section and the opening direction is upward.

Optionally, the inlet is lower than the combustion face of the burner.

The gas equipment according to the embodiment of the application includes: a casing, the casing includes a frame body and a cover plate, the frame body has a top opening and a front opening, and the cover plate is covered on the frame body to close the The front opening, the heat exchanger and the fume hood are installed on the frame to close the top opening, and the heat exchanger, the burner and the air distribution rod are installed in the casing to be in the casing A closed combustion heat exchange chamber is formed; a fan assembly is mounted on the bottom plate of the frame body and is located outside the frame; a cooling and heat insulation board is connected to the casing at intervals On the inner wall of the fan, part of the air input by the fan unit forms an air flow between the inner wall of the housing and the cooling and heat insulation board to form an air cooling channel.

According to the gas equipment of the embodiment of the present application, the external heat radiation of the casing can be reduced, the damage of the heat to the components of the gas equipment can be reduced, and the electronic components of the gas equipment can be prevented from being thermally lost.

Optionally, the left side plate and/or the right side plate of the frame body are respectively provided with first cooling and heat insulation plates at intervals, thereby constructing a first air-cooling channel, and the bottom of the first air-cooling channel has an inlet. , the top of the first air cooling channel has an outlet.

Optionally, the first cooling and heat insulation plate extends to the lower part of the left and/or right side plate of the frame to the bottom of the burner, so that the inlet of the first air-cooling channel is lower than the The bottom surface of the burner is or is flush with the bottom surface of the burner.

Optionally, the part of the first cooling and heat insulating plate between the inlet and the outlet of the first air-cooling channel is a continuous plate.

Optionally, the top outlet of the first air-cooling channel is close to the bottom of the heat exchanger, and the airflow in the first air-cooling channel is at least partially blown toward the left and right ends of the heat exchanger.

Optionally, at least one end edge of the first cooling and heat insulating plate is bent and extended to form a first bent portion extending outward, and the first bent portion extends outward to form a first connection portion, and the The first connecting portion is attached to the left side plate or the right side plate of the frame body.

Optionally, an inlet of the first air-cooling channel is provided on the first bent portion of the lower end of the first cooling and heat insulating plate.

Optionally, the inlet of the first air-cooling channel includes a plurality of strip-shaped holes arranged at intervals along the front-rear direction on the first bending portion.

Optionally, the left side plate and/or the right side plate of the frame body is provided with at least one outwardly protruding reinforcing portion, so as to form a groove with a notch facing the first air cooling channel on the inner side, so The groove is strip-shaped and the length direction extends along the up-down direction.

Optionally, the rear side plate of the frame body and/or the cover plate are respectively provided with second cooling and heat insulation plates at intervals, so as to construct a second air cooling channel that communicates with the air outlet of the fan unit. , the inlet of the second air-cooling channel is higher than the inlet of the first air-cooling channel.

Optionally, the second cooling and insulating plate extends toward the bottom of the rear side plate of the frame, and the gap between the second cooling and insulating plate and the rear side plate of the frame forms the second wind. The back air inlet of the cold aisle is arranged close to the bottom side plate of the burner.

Optionally, the second cooling and thermal insulation board extends toward the lower part of the cover plate, and the gap between the second cooling and thermal insulation board and the cover plate forms the front side entrance of the second air-cooling channel. The air inlet, the front side air inlet of the second air cooling channel is higher than the height of the back air inlet.

Optionally, the second cooling and heat insulation plate extends to the side of the heat exchanger toward the rear side plate of the frame and/or the top of the cover plate, so as to be on the front and rear sides of the heat exchanger. Forms the thermal insulation.

Optionally, the second cooling and heat insulation board has at least one interception section, the interception section has a transverse extension section and a longitudinal extension section, the transverse extension section extends from the inside to the outside, and the start end of the longitudinal extension section is the same as the The rear ends of the laterally extending sections are connected, the longitudinally extending sections are folded and extend upward and obliquely, and each of the intercepting sections has an outlet of the second air-cooling channel.

Optionally, the second cooling and heat insulation board has a plurality of the shut-off sections arranged in the longitudinal direction and connected in sequence.

Optionally, the outlet of the second air-cooling channel includes a plurality of strip-shaped holes spaced along the left-right direction on the intercepting section.

Optionally, the junction of the transversely extending section and the longitudinally extending section of the uppermost shut-off section is in contact with the corresponding cover plate or the rear side plate of the frame body, and the other shut-off sections are in contact with each other. The junction of the transversely extending section and the longitudinally extending section of the segment is spaced from the corresponding rear side panel of the cover or frame.

Optionally, at least one outwardly protruding reinforcing portion is provided on the rear side plate of the frame to form a groove on the inner side with the notch facing the second air-cooling channel, and the groove is strip-shaped. And the length direction extends along the up-down direction.

Optionally, the heat insulating portion is located on the upper side of the second air-cooling channel and is connected to the longitudinally extending section of the uppermost cut-off section.

Optionally, the heat insulating portion is an air heat insulating layer, and the air heat insulating layer is not in communication with the second air cooling channel.

Optionally, the second cooling and heat insulation board has a supporting convex portion, and the supporting convex portion is located in the second air-cooling channel and abuts against the rear side plate of the frame body or the cover plate.

Optionally, the lower end of the second cooling and heat insulation plate matched with the cover plate is bent and extended to form a second bent portion extending outward and a second connecting portion extending downward, the second The bent portion is provided with a front air inlet of the second air-cooling channel, and the second connecting portion is fitted with the cover plate.

Optionally, the burner has a bottom side plate, the rear end of the bottom side plate is provided with a downwardly extending lower flange, and the lower flange is attached to the rear side plate of the frame body, and the The lower end of the second cooling and heat insulating plate is matched with the bottom side plate, and the bottom side plate is provided with a through hole, and the through hole communicates with the inlet of the second air-cooling channel.

Optionally, the left side plate, the right side plate and the rear side plate of the frame body are integrally formed into a frame body, the bottom plate of the frame body is connected to the bottom of the frame body, and the cover plate is connected to the frame body. connected with the bottom plate of the frame.

Optionally, the front side edges of the left side plate and the right side plate of the frame body are provided with a frame body flange extending left or right, and the bottom plate of the frame body is provided with a bottom plate flange extending upward or downward. The cover plate is connected with the flange of the frame body and the flange of the bottom plate.

Optionally, the top edge of the rear side plate of the frame body is a flat plate extending in the longitudinal direction, and the fume hood is connected to the flat plate.

Optionally, sound insulation cotton is provided between the frame body, the heat exchanger and the fume hood.

Optionally, the part of the cooling and heat insulation plate corresponding to the left or right side plate of the frame body is provided with a mounting hole for installing the ignition needle; the part of the cooling and heat insulation plate corresponding to the cover plate is provided. There are fire viewing holes.

The gas water heater according to the embodiment of the present application includes the gas appliance according to the embodiment of the present application.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

FIG. 1 is an exploded view of a gas appliance according to some embodiments of the present application;

2 is a perspective view of a gas appliance according to some embodiments of the present application;

3 is a perspective view of a heat exchanger and a fume hood according to some embodiments of the present application;

4 is a perspective view of a frame according to some embodiments of the present application;

Fig. 5 is the enlarged view of A place in Fig. 4;

6 is a perspective view of a cover plate according to some embodiments of the present application;

7 is a perspective view of a fan assembly according to some embodiments of the present application;

8 is a cross-sectional view of a gas appliance from an angle according to some embodiments of the present application;

9 is a cross-sectional view of a gas appliance from another angle according to some embodiments of the present application;

Fig. 10 is an enlarged view at B in Fig. 9;

Figure 11 is an enlarged view at C in Figure 9;

12 is a schematic diagram of a gas water heater according to some embodiments of the present application.

Reference number:

Gas equipment 100;

housing 10;

Frame 11; Top opening 111; Front opening 112; Left side plate 113; First flange 1131; Right side plate 114; Second flange 1141; Mounting hole 1142; Positioning lugs 1152; strip positioning holes 1153; fan interface 1154; recesses 1155; rear side plate 116; second positioning through holes 1161; positioning flanges 117; ; the first connecting part 822; the second cooling and heat insulation plate 119; the intercepting section 1191; Side 16; Bottom Flange 17; Reinforcement 18;

cover plate 12; third hook 121; positioning notch 122; third positioning through hole 123; fire viewing hole 124;

The first installment is 20;

heat exchanger 21; left end plate 211; first hook 2111; right end plate 212; second hook 2121; fume hood 22; rear plate 221; first positioning through hole 2211; third flange 222;

The second part 30; the burner 31; the bottom side plate 61; the through hole 521; the lower flange 62;

The fan assembly 40; the first positioning lug 41; the positioning strip 42; the air outlet 43;

the first air cooling channel 51; the inlet 511 of the first air cooling channel 51; the outlet 512 of the first air cooling channel 51; the second air cooling channel 52; the outlet 522 of the second air cooling channel 52; the heat insulation part 53;

Gas water heater 1000.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application.

1-11, a gas equipment 100 according to an embodiment of the present application is described. The gas equipment 100 generally includes a casing 10, a fan unit 40, and a cooling and heat insulation board. The heat exchanger 21 , the fume hood 22 , the burner 31 and the gas distributor rod 32 of the gas equipment 100 are assembled on the casing 10 , for example, the heat exchanger 21 and the fume hood 22 constitute the first part 20 , the burner 31 and the gas distributor The rod 32 constitutes the second part 30, and the first part 20, the second part 30 and the fan part 40 are respectively assembled on the casing 10 to construct a complete gas equipment product structure.

Specifically, as shown in FIG. 1 , the housing 10 includes a frame body 11 and a cover plate 12 , and the frame body 11 has a top opening 111 and a front opening 112 . That is, the frame body 11 constitutes the basic skeleton of the gas equipment 100, wherein the top and the front part of the casing 10 are open to facilitate the assembly of each component.

The heat exchanger 21 and the fume hood 22 are installed on the frame body 11 to close the top opening 111 . A closed combustion chamber (or combustion heat exchange chamber) is formed. For example, the first part 20 is integrated with the heat exchanger 21 and the fume hood 22. Therefore, by assembling the first part 20 on the top of the frame body 11, the functions of heat exchange and fume exhaust of the gas equipment 100 can be realized. It can be understood that, in order to achieve the structural integrity and tightness of the gas equipment, preferably, the shape of the first part 20 matches the top opening 111 , that is, the first part 20 is assembled on the frame body 11 , the top opening 111 of the frame body 11 is basically closed, thereby reducing heat loss and leakage of exhaust gas during the operation of the gas appliance 100 , improving energy consumption and safety.

Further, the second assembly 30 is integrated with a burner 31 and a gas distribution rod 32, and the second assembly 30 is assembled in the frame body 11 and located at the bottom. The fan assembly 40 is assembled on the bottom plate 115 of the frame body 11 and located outside the frame body 11 . The fan unit 40 blows the outside air into the frame body 11 , the gas divider 32 introduces the gas into the burner 31 , and the air and gas burn in the burner 31 to generate high-temperature flue gas.

That is, the upper part of the frame body 11 is provided with a heat exchanger 21 and a fume hood 22 for heat exchange and smoke exhaust, and the bottom part of the frame body 11 is provided with a burner 31 and The air distribution rod 32 and the fan unit 40 for blowing air.

In this embodiment, the assembly process of the gas equipment 100 can be roughly as follows. First, the first part 20 is assembled on the top of the frame body 11, then the second part 30 is assembled in the frame body 11, and then the fan part 40 is assembled. It is assembled on the bottom of the frame body 11 , and finally the cover plate 12 is covered on the front side of the frame body 11 . Of course, the above is only illustrative and not a limitation of the assembly process of the gas equipment 100. In addition, the gas equipment 100 also includes the assembly of the casing and the connection of other pipelines and lines, which will not be described in detail here.

In order to facilitate subsequent maintenance, the cover plate 12 is detachably connected to the front edge of the frame body 11 and the fume hood 22 . The cover plate 12 and the frame body 11 can be connected by one or more of clamping or screwing.

In short, according to the gas equipment 100 of the embodiment of the present application, by integrating a plurality of components into one part, and installing the parts on the frame body 11 as a whole, the assembly process between the parts is reduced, and the installation is concentrated on the frame 11. On the frame body 11, the operation mode is relatively simple, which improves the overall assembly efficiency, facilitates maintenance, and facilitates automated production.

In some embodiments of the present application, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the cooling and heat insulation plates are spaced on the inner wall of the housing 10 , and part of the air input by the fan unit 40 may be on the inner wall of the housing 10 . Air flow is formed between it and the cooling insulation board to form an air cooling channel. The airflow in the air cooling channel can cool down the temperature of the frame body 11, thereby reducing the external heat radiation of the frame body 11, reducing heat damage to the components of the gas equipment 100, and avoiding heat loss to the electronic components of the gas equipment 100.

In some embodiments of the present application, as shown in FIGS. 1 , 2 and 4 , the frame body 11 includes a left side panel 113 , a rear side panel 116 , a right side panel 114 and a bottom panel 115 , and a left side panel 113 and a right side panel 115 . The height of the board 114 is lower than the height of the rear side board 116 , and the left side and the right side of the first part 20 are clamped on the left side board 113 and the right side board 114 respectively. That is, the left side of the first assembly 20 is connected to the left side plate 113 of the frame body 11, and the right side of the first assembly 20 is connected to the right side plate 114 of the frame body 11. The left side of the first part 20 and the right side of the second part 30 are connected to each other and encircled in a circumferential direction, leaning against each other, and have good stability.

In an optional embodiment, one of the lower edge of the left end plate 211 of the heat exchanger 21 and the upper edge of the left side plate 113 of the frame body 11 is provided with a first hook 2111, and the other is provided with a first hook 2111. Correspondingly, one of the lower edge of the right end plate 212 of the heat exchanger 21 and the upper edge of the right side plate 114 of the frame body 11 is set. There is a second hook 2121 , and the other is provided with a second flange 1141 matched with the second hook 2121 . During the assembly process, the first part 20 is fastened to the frame body 11 through the engagement of the first hook 2111 and the first flange 1131 and the engagement of the second hook 2121 and the second flange 1141 .

In order to improve the stability of the cooperation between the first part 20 and the frame body 11 , the rear plate 221 of the fume hood 22 is provided with a plurality of first positioning through holes 2211 . The upper part is provided with a plurality of second positioning through holes 1161, and the first positioning through holes 2211 and the second positioning through holes 1161 are locked by screws. That is, after the first part 20 is fastened to the frame body 11 , the first positioning through hole 2211 and the second positioning through hole 1161 are locked with screws from the front side of the frame body 11 .

Optionally, the assembly method of the second part 30 is roughly as follows. First, the gas distribution rod 32 is screwed to the burner 31, and then the second part 30 is integrally locked on the frame body 11. The bottom plate 115 of 11 may be provided with a concave notch 1155 which is convenient for the air distribution rod 32 to pass through. As shown in FIG. In this way, it is convenient to connect the gas distribution rod 32 with the external gas pipe.

After the first part 20 and the second part 30 are assembled on the frame body 11 , the cover plate 12 can be covered on the front side of the frame body 11 , thereby closing the front opening 112 of the frame body 11 . As shown in FIGS. 1-4 , the top surface of the fume hood 22 is provided with a third flange 222 extending upward, the cover plate 12 is provided with a third hook 121 , and the third flange 222 is inserted into the third hook within 121. The front edge of the frame body 11 is provided with a plurality of positioning flanges 117 , and correspondingly, the cover plate 12 is provided with a plurality of positioning notches 122 , and the positioning flanges 117 are clamped in the positioning notches 122 . When assembling the cover plate 12, first connect the third flange 222 with the third hook 121, and then pull down the cover plate 12 to make the positioning flange 117 snap into the positioning gap 122, thereby restricting the cover plate 12 in the up-down and left-right directions Orientation.

Further optionally, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the lower side of the cover plate 12 is provided with a third positioning through hole 123 , and correspondingly, the front side of the bottom plate 115 is provided with a fourth positioning through hole 1151 . The third positioning through hole and the fourth positioning through hole 1151 are locked by screws. In this way, the lower side of the cover plate 12 is securely locked on the frame body 11 , the sealing performance between the cover plate 12 and the frame body 11 is improved, and heat and airflow are prevented from being lost to the outside.

In some embodiments of the present application, the bottom plate 115 is provided with a fan interface 1154, the air outlet of the fan assembly 40 corresponds to the fan interface 1154, and the fan assembly 40 is provided with a first positioning For the lug 41, the bottom surface of the bottom plate 115 is provided with a second positioning lug 1152 extending downward, and the first positioning lug 41 and the second positioning lug 1152 are locked by screws. 1 , 2 and 7, when the fan assembly 40 is assembled, the air outlet of the fan assembly 40 can be docked with the fan interface 1154 on the bottom plate 115. At this time, the first positioning lugs 41 and The second positioning lugs 1152 also abut each other, and then the first positioning lugs 41 and the second positioning lugs 1152 can be locked together by screws from the front side of the frame body 11 .

In a further optional example, the top of the fan assembly 40 is provided with a positioning bar 42 , the bottom plate 115 is provided with a bar-shaped positioning hole 1153 , and the positioning bar 42 is inserted into the bar-shaped positioning hole 1153 . During assembly, the positioning bar 42 can be inserted into the bar-shaped positioning hole 1153 obliquely, and then the positioning bar 42 is supported on the top surface of the bottom plate 115 , thereby further improving the assembly stability of the fan assembly 40 and the frame body 11 .

The assembly process of the gas equipment in the above embodiment can be as follows: (1) First, insert the burner into the frame from the front opening of the frame, and connect and fix the burner with the frame by screws. (2) Insert the air distribution rod into the burner from the front opening of the frame, and connect and fix it with the burner by screws. (3) Insert the first part into the frame from the front opening of the frame, and drive 2-4 screws from the front to fix it. The first and second hooks on the left and right end plates of the heat exchanger are respectively fastened to the first and second flanges on the left and right sides of the frame. (4) First wrap the third hook on the top of the cover to the third flange on the hood. Then slide the cover plate down until the positioning notch on the left and right sides of the cover plate is locked with the positioning notch on the frame. Finally, the cover plate and the bottom of the frame are fixed with screws to achieve full restraint. (5) Insert the positioning strip on the right side of the fan assembly into the strip-shaped positioning hole on the fan interface, and fix the first positioning lug and the second positioning lug with screws from the front side to complete the fan assembly and fixation.

In some embodiments of the present application, as shown in FIG. 8 , the left side plate 113 and/or the right side plate 114 of the frame body 11 are respectively provided with first cooling and heat insulation plates 118 at intervals, thereby forming a first cooling and insulating plate 118 . An air cooling channel 51, the first air cooling channel 51 communicates with the air outlet of the fan unit 40, and at least a part of the airflow in the first air cooling channel 51 is blown toward the left and right ends of the heat exchanger 21 . In this way, the first air-cooling channel 51 introduces a part of the cold air sucked by the fan unit 40 into both ends of the heat exchanger 21 , continuously cooling the two ends of the heat exchanger 21 , and reducing the left side end plate 211 and the heat exchanger 21 . The heat dissipated by the right end plate 212 avoids heat loss of the electronic components of the gas equipment 100 .

Further, the bottom of the first air cooling channel 51 has an inlet 511 , and the top of the first air cooling channel 51 has an outlet 512 . That is, the cold air enters from the bottom and exits from the top, and can be directly blown to both ends of the heat exchanger 21, thereby forming a low-temperature airflow layer at both ends of the heat exchanger 21, continuously cooling the two ends of the heat exchanger 21, and reducing heat exchange. The heat dissipated by the left end plate 211 and the right end plate 212 of the gas device 21 to the outside avoids heat loss of the electronic components of the gas equipment 100 .

In some embodiments of the present application, as shown in FIG. 8 , the first cooling and heat insulation plate 118 extends toward the lower part of the left side plate 113 and/or the right side plate 114 of the frame body 10 to the bottom of the burner 31 , so that the first The inlet 511 of the air cooling channel 51 is lower than the bottom surface of the burner 31 , or the inlet 511 of the first air cooling channel 51 is flush with the bottom surface of the burner 31 . Therefore, it can be ensured that the air temperature in the first air cooling channel 51 is relatively low. Preferably, the air source in the first air cooling channel 51 is the cold air directly introduced by the fan unit 40 . During the upward flow of the cold air in the first air cooling channel 51 , the temperature of the frame body 11 can also be lowered, thereby reducing the external heat radiation of the frame body 11 and reducing heat damage to the components of the gas equipment 100 .

In some specific embodiments, the inlet 511 of the first air-cooling channel 51 is lower than the bottom side plate 61 of the burner 31 , so that the first air-cooling channel 51 is directly located between the burner 31 and the bottom plate 115 of the frame body 11 . Therefore, the air source in the first air cooling channel 51 is the cold air directly introduced by the fan unit 40, which further improves the cooling effect.

In some specific embodiments of the present application, as shown in FIG. 8 , the frame body 11 cooperates with the cover plate 12 to define a combustion chamber, the burner 31 and the heat exchanger 21 are arranged in the combustion chamber, and the combustion chamber includes a first chamber and The second chamber, wherein the first chamber is located between the bottom side plate 61 of the burner 31 and the bottom plate 115 of the frame 11, and the second chamber is located between the burner 31 and the heat exchanger 21, so that the first chamber is located between the burner 31 and the heat exchanger 21. Both the cavity and the second cavity are located between the two first cooling and heat insulation boards 118 matched with the left side plate 113 and the right side plate 114 of the frame body 11 . In addition, the air outlet of the fan unit 40 is communicated with the middle of the first chamber, and the air outlet of the fan unit 40, the first chamber, the burner 31, the second chamber and the heat exchanger 21 are arranged sequentially from bottom to top.

The corresponding first air-cooling channel 51 extends from bottom to top, so that the inlet 511 of the first air-cooling channel 51 communicates with the first chamber directly, and the outlet 512 of the first air-cooling channel 51 communicates with the top of the second chamber. Part of the airflow entering the first chamber may flow upward through the first air cooling channel 51 and flow to the top of the second chamber.

On the one hand, the gas in the first chamber is cold air directly flowing in from the air outlet of the fan unit 40, and the first air-cooling channel 51 is directly connected to the first chamber, so that the air source in the first air-cooling channel 51 is The cold air directly introduced by the fan unit 40 can cool the temperature of the frame body 11 during the upward flow of the cold air in the first air-cooling channel 51, thereby reducing the external heat radiation of the frame body 11 and reducing the effect of heat on the gas equipment. 100 parts damage.

On the other hand, the outlet 512 of the first air-cooling channel 51 directly extends to the top of the second chamber, so that the first air-cooling channel 51 has a wider coverage in the longitudinal direction of the frame body 11 and has a better effect of reducing heat radiation. In addition, the distance between the outlet 512 of the first air-cooling channel 51 and the end of the heat exchanger 21 is smaller, and the airflow blown out from the outlet 512 of the first air-cooling channel 51 can be more and more fully blown toward the heat exchanger 21. The bottom of the left end plate 211 and the right end plate 212 can improve the effect of preventing the heat of high temperature flue gas from approaching the area of the left end plate 211 and the right end plate 212, and reduce the heat of the heat exchange tubes of the heat exchanger 21. The fatigue effect is better, and the effect of preventing cracks in the welds between the heat exchange tube and the left end plate 211 and the right end plate 212 and preventing water seepage in the heat exchange tube is better.

In some embodiments of the present application, as shown in FIG. 8 , the part of the first cooling and heat insulating plate 118 located between the inlet 511 and the outlet 512 of the first air cooling channel 51 is a continuous plate. In other words, from the first chamber to the top of the second chamber, the outlet 512 of the first air cooling channel 51 is not provided on the first cooling and heat insulating plate 118 . The distance between the cover plate 12 and the rear side plate 116 of the frame body 11 and the fire row of the burner 31 is smaller than the distance between the left side plate 113 and the right side plate 114 of the frame body 11 and the fire row of the burner 31. For example, the cover plate 12 and The distance between the rear side plate 116 of the frame body 11 and the fire row of the burner 31 is generally less than 1cm, and the distance between the left side plate 113 and the right side plate 114 of the frame body 11 from the fire row of the burner 31 is generally greater than 10cm; and the cover The combustion surface corresponding to the plate 12 and the rear side plate 116 of the frame body 11 is smaller than the combustion surface corresponding to the left side plate 113 and the right side plate 114 of the frame body 11, and the temperature rises faster. Therefore, the temperature of the left side plate 113 and the right side plate 114 of the frame body 11 is lower than that of the cover plate 12 and the rear side plate 116 of the frame body 11 .

No outlet 512 of the first air-cooling channel 51 is provided in the middle of the first cooling and heat insulating plate 118 corresponding to the left side plate 113 and the right side plate 114 of the frame body 11 , and only the top portion is provided with the outlet 512 of the first air-cooling channel 51 , the combustion can be stabilized, and at the same time, the cold air flowing directly in the first air-cooled channel 51 can effectively reduce the temperature of the left side plate 113 and the right side plate 114 through the principle of convection heat exchange, and the air in the first air-cooled channel 51 can All flow out from the outlet 512 at the top to be directly blown to both ends of the heat exchanger 21, thereby forming a low-temperature airflow layer at both ends of the heat exchanger 21, continuously cooling both ends of the heat exchanger 21, and reducing the number of heat exchangers 21 The heat dissipated from the left and right ends of the gas device 100 avoids heat loss of the electronic components of the gas equipment 100 .

In some specific embodiments, as shown in FIG. 8 , the left side plate 113 of the frame body 11 is spaced apart from the upper edge of the corresponding first cooling and heat insulating plate 118 to define the corresponding outlet of the first air cooling channel 51 . 512, that is, the outlet 512 of the first air-cooling channel 51 is formed as a long strip extending in the front-rear direction, and is located on the top of the first cooling and heat insulation plate 118, so as to prevent the airflow in the first air-cooling channel 51 from blowing directly to the The flame in the second chamber ensures stable combustion of the flame.

In some specific embodiments, as shown in FIG. 8 , the right side plate 114 of the frame body 11 is spaced apart from the upper edge of the corresponding first cooling and heat insulating plate 118 to define the corresponding outlet of the first air cooling channel 51 . 512, that is, the outlet 512 of the first air-cooling channel 51 is formed as a long strip extending in the front-rear direction, and is located on the top of the first cooling and heat insulation plate 118, so as to prevent the airflow in the first air-cooling channel 51 from blowing directly to the The flame in the second chamber ensures stable combustion of the flame.

In some embodiments of the present application, as shown in FIG. 8 , the top outlet 512 of the first air-cooling channel 51 is close to the bottom of the heat exchanger 21 , and the airflow of the first air-cooling channel 51 is at least partially blown toward the heat exchanger 21 the left and right ends. As a result, a low-temperature airflow layer is formed at both ends of the heat exchanger 21, which continuously cools the two ends of the heat exchanger 21, reduces the heat radiated by the left end plate 211 and the right end plate 212 of the heat exchanger 21, and avoids gas equipment. 100% of the electronic components are subject to thermal losses.

In some embodiments of the present application, as shown in FIGS. 4 and 5 , at least one end edge of the first cooling and heat insulation board 118 is bent and extended to form a first bent portion 821 extending outward. The first bent portion 821 enables the first cooling and heat insulation plate 118 to be spaced apart from the corresponding left side plate 113 or right side plate 114 by a certain distance, so as to ensure the flow area of the first air-cooling channel 51 . The outer end of the 821 can be matched with the corresponding left side plate 113 or the right side plate 114 to ensure the sealing of the first air cooling channel 51 .

In some specific embodiments, as shown in FIG. 4 and FIG. 5 , the front end and the lower end of the first cooling and heat insulation plate 118 are respectively provided with first bending parts 821 to achieve sealing, and the upper end is not provided with the first bending part 821 To form the outlet 512 of the first air cooling channel 51 , the rear end is provided with a first bent portion 821 or integrally connected with a second cooling and heat insulation plate corresponding to the rear side plate of the frame body 11 to achieve sealing.

In some embodiments, as shown in FIG. 4 and FIG. 5 , the first bending portion 821 provided at the lower end of the first cooling and heat insulating plate 118 may be provided with the inlet 511 of the first air cooling channel 51, so that the distance The cold air that is closer to the fan unit 40 can enter the first air cooling passage 51 more smoothly.

In addition, at least one first bending portion 821 may also extend outward (ie, the side away from the first air cooling channel 51 ) to form a first connecting portion 822 , and the first connecting portion 822 is used to connect with the left side plate of the frame body 10 . 113 or the right side plate 114 is fitted. On the one hand, the sealing effect is improved, and on the other hand, the fixing of the first cooling and heat insulating plate 118 is realized.

For example, the upper end of the first cooling and insulating plate 118 forms a first connecting portion 822 extending upward, and the lower edge of the first connecting portion 822 is connected with the outer edge of the first bending portion 821 ; the first cooling and insulating plate 118 A first connecting portion 822 extending downward is also formed at the lower end of the first connecting portion 822, the upper edge of the first connecting portion 822 is connected with the outer edge of the first bending portion 821, and the first connecting portion 822 is connected with the corresponding left side plate of the frame body 11. 113 or the right side plate 114 is attached, which improves the sealing effect on the one hand, and realizes the fixation of the first cooling and heat insulating plate 118 on the other hand. For example, the first connecting portion 822 and the corresponding left side panel 113 or the right side panel 114 may be connected and fixed by fasteners.

In some specific embodiments, as shown in FIGS. 2 and 3 , the inlet 511 of the first air-cooling channel 51 may include a plurality of strip-shaped holes, and the plurality of strip-shaped holes are arranged at intervals along the front-rear direction at the first bending portion 821. On the one hand, the structural strength of the first bending portion 821 is ensured, and on the other hand, the air intake area of the first air cooling channel 51 can be increased to improve the cooling effect.

In some embodiments of the present application, as shown in FIG. 9 , the left side plate 113 of the frame body 11 is provided with a first flange 1131 , and the first flange 1131 is used to support the left end plate 211 of the heat exchanger 21 , Optionally, the first flange 1131 can also be snapped with the first hook 2111 of the left end plate 211, and the outlet 512 of the first air cooling channel 51 corresponding to the left side plate 113 of the frame body 11 can be connected with the first hook 2111 of the left end plate 211. The height of a flange 1131 is flush, so that the air flow out of the first air cooling channel 51 can be blown more directly to the left end plate 211 of the heat exchanger 21 , and the cooling effect of the left end plate 211 is better.

In some embodiments of the present application, as shown in FIGS. 4 and 8 , the right side plate 114 of the frame body 11 is provided with a second flange 1141 , and the second flange 1141 is used to support the right end of the heat exchanger 21 The plate 212, optionally, the second flange 1141 can also be snapped with the second hook 2121 of the right end plate 212, and the outlet of the first air cooling channel 51 corresponding to the right plate 114 of the frame body 11 512 can be at the same height as the second flange 1141, so that the air flow out of the first air cooling channel 51 can be blown more directly to the right end plate 212 of the heat exchanger 21, and the cooling effect on the right end plate 212 can be improved. it is good.

In some embodiments of the present application, as shown in FIGS. 1 to 4 , at least one reinforcement portion 18 may be provided on the left side panel 113 and/or the right side panel 114 of the frame body 11 , and the reinforcement portion 18 protrudes outwards , so as to form a groove on the inner side of the left side plate 113 and/or the right side plate 114 , and the notch of the groove faces the first air cooling channel 51 , that is, communicates with the first air cooling channel 51 . And the groove is strip-shaped, and the length direction of the groove extends along the up-down direction.

The structural strength of the left side plate 113 and/or the right side plate 114 of the frame body 11 can be enhanced by providing the reinforcement portion 18, and the structure of the frame body 11 is more stable, and the groove formed inside the reinforcement portion 18 can increase the first wind The local circulation area of the cold channel 51 to improve the cooling effect. And the length direction of the groove extends in the up-down direction, that is, the same as the flow direction of the air flow in the first air-cooling channel 51 , so as to play a guiding role in the air-flow in the first air-cooling channel 51 .

In some embodiments of the present application, as shown in FIG. 8 , at least one of the cover plate 12 and the rear side plate of the frame body 11 may further be provided with a second cooling and heat insulation plate 119 at intervals, thereby forming a second air The cold channel 52, the second air cooling channel 52 is communicated with the air outlet of the fan unit 40, so that part of the cold air flowing out of the air outlet of the fan unit 40 can enter the second air cooling channel 52, so that the front side of the combustion chamber and at least one side of the rear side to cool down.

In addition, as shown in FIG. 8, the inlet of the second air-cooling channel 52 is higher than the inlet 511 of the first air-cooling channel 51, so that the inlet 511 of the first air-cooling channel 51 and the inlet of the second air-cooling channel 52 are staggered, Avoid air interference.

For example, the second cooling and insulating plate 119 extends toward the bottom of the rear side plate 116 of the frame body 10 , and the gap between the second cooling and insulating plate 119 and the rear side plate 116 of the frame body 10 forms the second cooling channel The back air inlet of 52 is arranged close to the bottom side plate 61 of the burner 31 . So that the second cooling passage 52 can guide the air with the lower temperature in the lower part of the combustion chamber upward, so as to achieve a better cooling effect on the rear side plate 116 of the frame body 10, and prevent the electronic components of the gas equipment 100 from being damaged. it is good.

For example, the second cooling and heat insulation plate 119 extends to the lower part of the cover plate 12, and the gap between the second cooling and heat insulation plate 11 and the cover plate 12 forms the front air inlet of the second air-cooling channel 52, the second The front air inlet of the air cooling channel 52 is higher than the rear air inlet. So that the downwardly extending end of the second cooling and insulating plate 119 matched with the cover plate 12 is smaller than the downwardly extending end of the second cooling and insulating plate 119 matched with the rear side plate 116 of the frame body 10, so as to ensure the On the premise that the wind temperature is low, the interference of the second cooling and heat insulation plate 119 on the front side with the installation of other structures such as the air distribution rod 32 is avoided.

In some embodiments of the present application, as shown in FIG. 9 and FIG. 10 , the rear side plate 116 and/or the cover plate 12 of the frame body 11 are respectively provided with second cooling and heat insulation plates 119 at intervals, so as to form a connection with the fan. The second air-cooling channel 52 communicated with the air outlet of the unit 40 , and a part of the second air-cooling channel 52 surrounds the outer circumference of the heat exchanger 21 . That is, the temperature is continuously lowered to the front and rear sides of the gas equipment 100 through the airflow in the second air-cooling channel 52, and the flow path of the airflow in the second air-cooling channel 52 is higher than the top surface of the heat exchanger 21, that is, The second air cooling channel 52 can also isolate the heat exchanger 21 from the outside to a certain extent, so as to reduce the heat radiated from the area where the heat exchanger 21 is located, and avoid heat loss of the electronic components of the gas equipment 100 .

In a further optional example, the second cooling and heat insulation plate 119 has at least one interception section 1191, the interception section 1191 has a laterally extending section 11911 and a longitudinally extending section 11912, the laterally extending section 11911 extends from the inside to the outside, so The starting end of the longitudinally extending section 11912 is connected to the rear end of the laterally extending section 11911 , the longitudinally extending section 11912 is folded and extends upward and obliquely, and each of the intercepting sections 1191 has an outlet 522 of the second air cooling channel 52 . . In the embodiment in which there are multiple interception sections 1191 , the second air-cooling channel 52 can be split through the plurality of interception sections 1191 , and the flow is split upward in each interception section 1191 , and dispersed in the second cooling and heat insulation plate 119 . Therefore, a gas film layer is always formed on the inner wall surface of the second cooling and insulating plate 119 to block heat from radiating to the outside through the second cooling and insulating plate 119 and the frame body 11, thereby reducing the influence of heat on the components of the gas equipment 100. .

Further optionally, each shut-off section 1191 has an outlet 522 formed in the laterally extending section 11911 and the opening direction is upward. In this way, it is more favorable to always form an air film layer on the inner wall surface of the second cooling and heat insulating plate 119 to reduce heat radiation to the outside.

In a further optional embodiment, as shown in FIG. 8 and FIG. 9 , the inlet of the second air-cooling channel 52 is lower than the combustion surface of the burner 31 , so that the air temperature in the second air-cooling channel 52 can be guaranteed to be lower. , Preferably, the air source in the second air cooling channel 52 is the cold air directly introduced by the fan unit 40 . During the upward flow of the cold air in the air cooling channel, the temperature of the frame body 11 can also be lowered, thereby reducing the external heat radiation of the frame body 11 and reducing the damage of the heat to the components of the gas equipment 100 .

In some embodiments of the present application, as shown in FIGS. 8 and 9 , the combustion chamber includes a first chamber and a second chamber, wherein the first chamber is located between the bottom side plate 61 of the burner 31 and the frame body 11 The second chamber is located between the bottom plate 115 of the burner 31 and the heat exchanger 21, so that the first chamber and the second chamber are located at the two sides that cooperate with the cover plate 12 and the rear side plate 116 of the frame body 11. between the second cooling and insulating plates 119 . In addition, the air outlet of the fan unit 40 is communicated with the middle of the first chamber, and the air outlet of the fan unit 40, the first chamber, the burner 31, the second chamber and the heat exchanger 21 are arranged sequentially from bottom to top.

The corresponding second air-cooling channel 52 extends from bottom to top. The front air inlet of the second air-cooling channel 52 corresponding to the cover plate 12 is located in the middle of the burner 31 , and the second air-cooling channel 52 corresponding to the rear plate 116 of the frame body 10 is located in the middle of the burner 31 . The rear air inlet of the air cooling passage 52 is flush with the bottom side plate 61 of the burner 31, so that the inlets of the two second air cooling passages 52 are both communicated with the first chamber. The outlet 522 of the second air-cooling channel 52 is located in the middle of the second cooling and insulating plate 119 instead of the top, so that the outgoing airflow can continue to flow upward, so as to facilitate the formation of an air film layer inside the second cooling and insulating plate 119 . And in some embodiments, the outlet 522 of the second air cooling channel 52 communicates with different regions of the second chamber at multiple locations in the longitudinal direction. Part of the air flow entering the first chamber may flow upward through the second air cooling channel 52 and flow to multiple locations along the longitudinal direction of the second chamber.

On the one hand, the gas in the first chamber is the cold air directly flowing in from the air outlet of the fan unit 40, and the second air-cooling channel 52 is communicated with the first chamber, so that the air source in the second air-cooling channel 52 is the fan The cold air directly introduced by the part 40 can cool the temperature of the frame body 11 during the upward flow of the cold air in the second air-cooling channel 52, thereby reducing the external heat radiation of the frame body 11 and reducing the heat to the gas equipment 100. On the other hand, compared with the left side plate 113 and the right side plate 114 of the frame body 11, the cover plate 12 and the rear side plate 116 of the frame body 11 are closer to the fire row of the burner 31, Therefore, the temperature of the cover plate 12 and the rear side plate 116 of the frame body 11 is relatively high. By arranging the outlet 522 of the second air cooling passage 52 at different heights of the second cooling and heat insulating plate 119 corresponding to the cover plate 12 and the rear side plate 116 of the frame body 11, cold air can be blown out from different heights to ensure the first The entire inner surface of the second cooling and insulating plate 119 forms a gas film layer, which more comprehensively and effectively blocks heat from radiating to the outside through the second cooling and insulating plate 119 and the frame body 11 , thereby reducing the influence of heat on the components of the gas equipment 100 .

In some specific embodiments, as shown in FIG. 8 and FIG. 9 , the second cooling and heat insulation board 119 may have a plurality of shut-off sections 1191 , the plurality of shut-off sections 1191 are longitudinally arranged and connected in sequence, and each shut-off section 1191 has The outlets 522 of the second air-cooling passages 52 are formed to form a plurality of outlets 522 of the second air-cooling passages 52 distributed at intervals along the longitudinal direction, so as to improve the uniformity of cooling and heat insulation.

In some specific embodiments, as shown in FIG. 8 , the outlet 522 of the second air-cooling channel 52 may include a plurality of strip-shaped holes, and the plurality of strip-shaped holes are arranged in the interception section 1191 at intervals along the left-right direction. On the one hand, the structural strength of the shut-off section 1191 can be ensured, and on the other hand, the flow area of the outlet 522 of the second air-cooling channel 52 can be increased, so as to facilitate the formation of a more uniform gas film layer in a larger range in the left-right direction.

In some embodiments of the present application, at least one reinforcement portion 18 may be provided on the rear side plate 116 of the frame body 11 , and the reinforcement portion 18 protrudes outward to form a groove on the inner side of the rear side plate 116 . The notch faces the second air cooling channel 52 , that is, communicates with the second air cooling channel 52 . And the groove is strip-shaped, and the length direction of the groove extends along the up-down direction.

The structural strength of the rear side plate 116 of the frame body 11 can be enhanced by providing the reinforcement portion 18, and the structure of the frame body 11 can be more stable, and the grooves formed on the inner side of the reinforcement portion 18 can increase the local flow area of the second air cooling channel 52 , to improve the cooling effect. And the length direction of the groove extends in the up-down direction, that is, the same as the flow direction of the airflow in the second air-cooling channel 52 , so as to guide the airflow in the second air-cooling channel 52 .

In some embodiments of the present application, as shown in FIGS. 9 and 10 , among the plurality of interception sections 1191 , the connection between the transversely extending section 11911 and the longitudinally extending section 11912 of the uppermost interception section 1191 and the corresponding cover plate 12 (or the rear side plate 116 of the frame body 11) are in contact and fit, and the junctions of the laterally extending sections 11911 and the longitudinally extending sections 11912 of the other blocking sections 1191 are spaced from the corresponding cover plate 12 (or the rear side plate 116 of the frame body 11). open.

Taking the three intercepting sections 1191 located on the inner side of the cover plate 12 as an example, after the cold air enters from the front air inlet of the second air-cooling channel 52, it flows upward through the second air-cooling channel 52; it reaches the outlet of the lowermost intercepting section 1191 After 522, part of the cold air blows to the longitudinal extension 11912 of the interception section 1191 to form an air film layer, which isolates the high temperature flue gas through the air film layer to prevent the temperature from radiating to the outside; the remaining cold air continues to flow upwards and reaches the outlet of the intermediate interception section 1191 After 522, part of the cold air blows to the longitudinally extending section 11912 of the interception section 1191 to form an air film layer; the remaining cold air continues to flow upward and reaches the outlet 522 of the top interception section 1191, because the interception section 1191 is in close contact with the cover plate 12. , plays the role of interception, and all the cold air flows out and blows to the longitudinally extending section 11912 of the interception section 1191 to form a gas film layer. The flow paths and cooling methods of the other number of shut-off sections 1191 and the second air cooling channel 52 disposed on the inner side of the rear side plate 116 are similar to the above-mentioned embodiments, and are not repeated here.

Through the throttling effect of the uppermost shut-off section 1191 , all the cold air in the second air-cooling channel 52 can be blown out, avoiding accumulation in the upper part of the second air-cooling channel 52 and affecting the heat insulation effect.

In some embodiments, as shown in FIGS. 9 and 10 , the outlet 522 of the uppermost interception section 1191 may be lower than the heat exchanger 21 , and the upper end of the longitudinally extending section 11912 of the interception section 1191 is not lower than the heat exchange the lower end of the device 21. Therefore, the cold air blown out from the outlet 522 of the shut-off section 1191 can flow upward to the end of the heat exchanger 21 under the guidance of the longitudinally extending section 11912 after the gas film layer is formed in the longitudinally extending section 11912, so as to exchange The end of the heat exchanger 21 is cooled to prevent heat from being radiated outward from the left and right ends of the heat exchanger 21, thereby further improving the heat insulation effect.

In some embodiments of the present application, as shown in FIG. 9 , the second cooling and insulating plate 119 extends to the top of the rear side plate 116 and/or the cover plate 12 of the frame body 10 to the top of the heat exchanger 21 to Insulation portions 53 are formed on the front and rear side surfaces of the heat exchanger 21 . In the embodiment including a plurality of shut-off sections 1191 , as shown in FIG. 9 , heat insulation can also be constructed between the second cooling and heat insulation plate 119 and at least one of the cover plate 12 and the rear side plate 116 of the frame body 11 . The heat insulation part 53 is located on the upper side of the second air cooling channel 52, and the heat insulation part 53 is connected with the longitudinally extending section 11912 of the uppermost interception section 1191 to simplify the structure and make full use of the space. In addition, the heat insulating portion 53 is located on the outer periphery of the heat exchanger 21 . The heat exchanger 21 can be isolated from the outside by the heat insulation portion 53 , thereby reducing the heat radiated from the area where the heat exchanger 21 is located, and avoiding heat loss to the electronic components of the gas equipment 100 .

In some embodiments, as shown in FIG. 9 , the heat insulating part 53 is an air heat insulating layer, and the air heat insulating layer can pass through the upper part of the second cooling heat insulating plate 119 and the corresponding cover plate 12 (or the rear side plate 116 ) The fit is defined and the device structure is simplified. Specifically, the lower end of the air thermal insulation layer may be the connection between the transversely extending section 11911 and the longitudinally extending section 11912 of the uppermost shut-off section 1191 in contact with the corresponding cover plate 12 (or rear side plate 116 ) of the frame body 11 . place.

In addition, the air insulation layer is not communicated with the second air cooling channel 52 to prevent the airflow in the second air cooling channel 52 from entering the air insulation layer and affecting the formation of an air film layer inside the second cooling insulation board 119 .

In some embodiments of the present application, as shown in FIG. 9 and FIG. 11 , the second cooling and heat insulation plate 119 has a supporting convex portion 83 , the supporting convex portion 83 is located in the second air cooling channel 52 , and the supporting convex portion 83 is connected with the supporting convex portion 83 . Corresponding rear side plates 116 (or cover plates 12 ) of the frame body 11 abut against each other to support the second cooling and heat insulation plate 119 and the rear side plates 116 (or cover plates 12 ) of the frame body 11 to improve structural stability Therefore, the deformation of the second cooling and heat insulation plate 119 and the rear side plate 116 (or the cover plate 12 ) of the frame body 11 and the influence of the flow area of the second air cooling passage 52 are avoided.

In some specific embodiments, the longitudinal section of the support protrusion 83 in the front-rear direction may be circular, square, triangular, etc., and the extension of the longitudinal section in the front-rear direction is small to avoid increasing the size of the second air-cooling channel 52 wind resistance.

In some embodiments of the present application, as shown in FIGS. 9 and 11 , at least one end edge of the second cooling and heat insulating plate 119 matched with the cover plate 12 is bent and extended to form a second bent extending outward Section 841. The second bent portion 841 enables the second cooling and heat insulation plate 119 to be spaced apart from the corresponding cover plate 12 by a certain distance, so as to ensure the flow area of the second air cooling channel 52 , and the outer end of the second bent portion 841 can be connected to the The corresponding cover plates 12 are matched to ensure the sealing of the second air cooling channel 52 .

In some specific embodiments, as shown in FIG. 9 , the left and right ends of the second cooling and heat insulating plate 119 are respectively provided with second bending portions 841 to achieve sealing. The upper part of the second cooling and thermal insulation board 119 may be abutted against the cover plate 12 through the uppermost shut-off section 1191 to achieve sealing, and/or, the upper end of the second cooling and thermal insulation board 119 may be provided with a second bending part 841, the first The two bent portions 841 cooperate with the cover plate 12 to seal. Specifically, the second bent portion 841 provided on the upper end of the second cooling and heat insulating plate 119 can seal the top of the air heat insulating layer.

In some embodiments, as shown in FIG. 9 , the second bent portion 841 at the lower end of the second cooling and heat insulation plate 119 matched with the cover plate 12 may be provided with a front air inlet of the second air cooling channel 52 , In this way, the cold air closer to the fan unit 40 can enter the second air cooling passage 52 more smoothly. In addition, the lower end of the second cooling and heat insulating plate 119 also forms a second connecting portion 842 extending downward, the upper edge of the second connecting portion 842 is connected with the outer edge of the second bending portion 841 , and the second connecting portion 842 is connected with The cover plate 12 is attached to improve the sealing effect on the one hand, and realize the fixation of the second cooling and heat insulation plate 119 on the other hand. For example, the second connection portion 842 and the corresponding cover plate 12 or the rear side plate 116 may be connected and fixed by fasteners.

In some embodiments, as shown in FIG. 9 , the upper end of the second cooling and heat insulation plate 119 also forms a second connecting portion 842 extending upward, the lower edge of the second connecting portion 842 and the outer edge of the second bending portion 841 connected, and the second connecting portion 842 is attached to the cover plate 12 to improve the sealing effect of the air insulation layer and the fixing stability of the second cooling and heat insulation plate 119 .

In some embodiments of the present application, as shown in FIG. 9 and FIG. 11 , the burner 31 has a bottom side plate 61 , and the rear end of the bottom side plate 61 is provided with a lower flange 62 extending downward, and the lower flange 62 is connected with the bottom flange 62 . The rear side plate 116 of the frame body 11 is attached to realize the fixation of the burner 31. For example, the lower flange 62 and the rear side plate 116 of the frame body 11 can be locked by fasteners, which is beneficial to realize the front assembly of the burner 31. , improve assembly efficiency. The lower end of the second cooling and thermal insulation plate 119 is in clearance fit with the bottom side plate 61 , for example, the lower end of the second cooling and thermal insulation plate 119 is in sealing fit with the bottom side plate 61 or with a small gap, and the bottom side plate 61 is provided with a through hole 521 , the through hole 521 and the inlet of the second air cooling channel 52 .

Therefore, the second air cooling channel 52 is defined between the second cooling and heat insulation plate 119 and the rear side plate 116 of the frame body 11 , and the through hole 521 on the bottom side plate 61 communicates with the second air cooling channel 52 to The interference between the air inlet structure of the second air cooling channel 52 and the fixed structure of the burner 31 is avoided, and the structure design is more reasonable.

In some embodiments of the present application, as shown in FIG. 4 , the left side plate 113 , the right side plate 114 and the rear side plate 116 of the frame body 11 can be integrally formed to form a frame body, the bottom plate 115 of the frame body 11 and the frame body The bottom of the body is connected, such as riveting, welding or fastener connection. , reduce the assembly process.

And the integrated frame body is beneficial to improve the sealing performance of the first air-cooling channel 51 and the second air-cooling channel 52 . For example, in the embodiment including the first air-cooling channel 51 and the second air-cooling channel 52 , the integrally formed frame body makes the left side plate 113 , the right side plate 114 and the rear side plate 116 of the frame body 11 between There is no gap between the frame body and the first cooling and heat insulation board 118 and the second cooling and heat insulation board 119 to be sealed more easily.

In some specific embodiments, as shown in FIG. 4 , the left side plate 113 and the right side plate 114 of the frame body 11 are respectively provided with first cooling and heat insulation plates 118 at intervals, thereby forming a first air cooling channel 51; frame The rear side plate 116 of the body 11 is provided with a second cooling and heat insulation plate 119 at intervals, thereby forming a second air cooling channel 52 .

And the first cooling and insulating plate 118 and the second cooling and insulating plate 119 are integrally formed to form a U-shaped structure with substantially the same shape as the frame body. The two integral parts cooperate with each other to define two first air cooling channels 51 and A second air cooling channel 52 greatly improves the airtightness of the air cooling channel.

In addition, during the assembly process, there is no need to assemble the left side plate 113 , the right side plate 114 and the rear side plate 116 of the frame body 11 , nor does it need to be installed between the first cooling and heat insulation plate 118 and the second cooling and heat insulation plate 119 For assembly, when the integrated cooling and heat insulation plate is connected to the frame body, the operation can be performed from the front side of the frame body, thereby greatly simplifying the assembly process.

In some specific embodiments, as shown in FIG. 4 , the front side edge of the left side panel 113 of the frame body 11 is provided with a frame body flange 16 extending leftward or rightward, and the front side edge of the right side panel 114 of the frame body 11 The side edge is also provided with a frame body flange 16 extending left or right, and the bottom plate 115 of the frame body 11 is provided with a bottom plate flange 17 extending upward or downward. So that both the frame flange 16 and the bottom flange 17 are generally located in the longitudinal plane along the left-right direction.

Wherein, the cover plate 12 can be connected with the frame body flange 16 and the bottom plate flange 17 by fasteners. The fasteners may be screws, bolts and the like. Therefore, the assembly of the left side plate 113, the right side plate 114 and the bottom plate 115 of the frame body 11 and the cover plate 12 can be performed from the front side of the frame body 11, that is, the front assembly is realized, and there is no need to screw in multiple directions. , simplify the assembly process. For example, all the fasteners of the cover plate 12 can be punched at the same time in a short period of time through a specific tooling, so as to realize automatic production, greatly reduce assembly man-hours, and improve production efficiency.

In some embodiments of the present application, as shown in FIG. 4 , the top edge of the rear side plate 116 of the frame body 11 is a flat plate extending in the longitudinal direction, and the fume hood 22 is connected to the flat plate, for example, by fasteners. In other words, the part of the rear side plate 116 of the frame body 11 for connecting with the fume hood 22 is not a flanging structure that is bent in the transverse direction, but is connected to the fume hood 22 by a flat plate, so that the front or back of the frame body 11 can be assembled from the front or back of the frame body 11. Installed to help simplify the assembly process.

In some embodiments, sound insulation cotton may be provided between the frame body 11 and the first part 20 . The sound insulation cotton can play a sound insulation effect, so as to reduce the working noise of the gas equipment 100, and at the same time can play a role of sealing and vibration reduction, so as to improve the sealing performance and structural stability of the casing. Optionally, the sound insulation cotton can be pasted on the frame body 11 to avoid offset and dislocation.

In some specific embodiments, the top and both side edges of the rear side plate 116 of the frame body 11 are provided with flat plates extending in the longitudinal direction, and the top of the left side plate 113 of the frame body 11 is provided with a first flap extending in the transverse direction. On the side 1131, the top of the right side plate 114 is provided with a second flange 1141 extending in the transverse direction. The left end plate 211 , the right end plate 212 and the rear plate 221 of the heat exchanger 21 are all matched with the flat plate and are sealed with sound insulation cotton. The side end plate 212 is matched with the second flange 1141 and sealed by sound insulation cotton.

In some embodiments of the present application, as shown in FIG. 4 , the left side plate 113 or the right side plate 114 of the frame body 11 may be provided with a mounting hole 1142, and the mounting hole 1142 is used for mounting the ignition needle, so that the ignition needle can extend into the combustion chamber for easy ignition. For example, the ignition needle may extend into the second chamber between the burner 31 and the heat exchanger 21 to facilitate smooth ignition.

It should be noted that, in the embodiment in which the first cooling and heat insulation plate 118 is provided on the inner side of the left side plate 113 or the right side plate 114 of the frame body 11 , the first cooling and heat insulation plate 118 is also provided with mounting holes 1142 to Avoid ignition pins.

In some embodiments of the present application, as shown in FIG. 6 , the cover plate 12 is provided with a fire viewing hole 124 . The combustion state in the combustion chamber can be observed through the fire observation hole 124 to ensure stable combustion of the gas equipment 100 . For example, the fire viewing hole 124 may be disposed corresponding to the second chamber located between the burner 31 and the heat exchanger 21, so as to make it easier to observe the combustion state.

It should be noted that, in the embodiment in which the second cooling and insulating plate 119 is provided on the inner side of the cover plate 12 , the second cooling and insulating plate 119 is also provided with the fire viewing hole 124 .

As shown in FIG. 12 , the gas water heater 1000 according to the embodiment of the present application includes the gas appliance 100 according to the embodiment of the present application. Since the gas equipment 100 according to the embodiment of the present application has the above-mentioned beneficial technical effects, the gas water heater 1000 according to the embodiment of the present application can reduce the external heat radiation of the casing 10, reduce the damage of the heat to the components of the gas equipment 100, and avoid the Electronic components of the gas appliance 100 are subject to heat loss.

In some embodiments, the gas-fired water heater 1000 includes a gas-fired heater or a gas-fired wall-hung boiler.

In this application, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application, and those of ordinary skill in the art will not depart from the principles and principles of the present application. Variations, modifications, substitutions, and alterations to the above-described embodiments are possible within the scope of the present application without departing from the scope of the present application.

Claims (35)

1. A gas appliance, comprising:

   a casing, the casing includes a frame body and a cover plate, and the frame body has a top opening and a front opening;

   A heat exchanger and a fume hood, the heat exchanger and the fume hood are assembled on the top of the frame body and are matched with the top opening, the cover plate is connected to the front side edge of the frame body and the Detachable connection of fume hood;

   a burner and an air distribution rod, the burner and the air distribution rod are assembled in the frame and located at the bottom;

   The fan assembly is mounted on the bottom plate of the frame body and is located outside the frame.
2. The gas equipment according to claim 1, wherein the frame body comprises a left side plate, a rear side plate, a right side plate and a bottom plate, and the height of the left side plate and the right side plate is lower than that of the rear side The height of the plate, the left and right sides of the heat exchanger are clamped on the left plate and the right plate respectively.
3. The gas equipment according to claim 1 or 2, wherein one of the lower edge of the left end plate of the heat exchanger and the upper edge of the left side plate of the frame is provided with a first hook, and the other is provided with a first hook. There is a first flange that is matched with the first hook, and correspondingly, one of the lower edge of the right end plate of the heat exchanger and the upper edge of the right side plate of the frame is provided with a second flange. The other hook is provided with a second flange matched with the second hook.
4. The gas equipment according to any one of claims 1-3, wherein the rear plate of the fume hood is provided with a plurality of first positioning through holes, and correspondingly, the upper part of the rear side plate of the frame is provided with a plurality of first positioning through holes. a second positioning through hole, the first positioning through hole and the second positioning through hole are locked by screws.
5. The gas equipment according to any one of claims 1-4, wherein a top surface of the fume hood is provided with a third flange extending upward, a third hook is provided on the cover plate, and the third The flange is inserted into the third hook.
6. The gas equipment according to any one of claims 1-5, wherein the front side edge of the frame is provided with a plurality of positioning flanges, and correspondingly, the cover plate is provided with a plurality of positioning notches, and the The positioning flange is clamped in the positioning notch.
7. The gas equipment according to any one of claims 1-6, wherein the lower side of the cover plate is provided with a third positioning through hole, and correspondingly, the front side of the bottom plate is provided with a fourth positioning through hole, so The third positioning through hole and the fourth positioning through hole are locked by screws.
8. The gas equipment according to any one of claims 1-7, wherein a fan interface is provided on the bottom plate, an air outlet of the fan part corresponds to the fan interface, and the fan part is provided with a fan interface. For the first positioning lug, the bottom surface of the bottom plate extends downward with a second positioning lug, and the first positioning lug and the second positioning lug are locked by screws.
9. The gas equipment according to any one of claims 1-8, wherein the top of the fan unit is provided with a positioning bar, the bottom plate is provided with a bar-shaped positioning hole, and the positioning bar is inserted into the bar-shaped positioning inside the hole.
10. A gas appliance, comprising:

    A casing, the casing includes a frame body and a cover plate, the frame body has a top opening and a front opening, the cover plate is covered on the frame body to close the front opening, the heat exchanger and the fume hood installed on the frame to close the top opening, and the heat exchanger, the burner and the gas distribution rod are installed in the casing to form a closed combustion heat exchange chamber in the casing;

    a fan assembly, the fan assembly is assembled on the bottom plate of the frame body and is located outside the frame;

    A cooling and thermal insulation board, the cooling and thermal insulation board is connected to the inner wall of the casing at intervals, and part of the air input by the fan unit forms an airflow between the inner wall of the casing and the cooling and thermal insulation board to Form air cooling channels.
11. The gas equipment according to claim 10, wherein the left side plate and/or the right side plate of the frame body are respectively provided with first cooling and heat insulation plates at intervals, so as to form a first air cooling channel, and the first air cooling channel is formed. The bottom of an air-cooling channel has an inlet, and the top of the first air-cooling channel has an outlet.
12. The gas equipment according to claim 11, wherein the first cooling and heat insulation plate extends toward the lower part of the left side plate and/or the right side plate of the frame to the bottom of the burner, so that the first air The inlet of the cold aisle is lower than or flush with the bottom surface of the burner.
13. The gas equipment according to claim 11 or 12, wherein the part of the first cooling and heat insulation plate between the inlet and the outlet of the first air-cooling channel is a continuous plate.
14. The gas equipment according to any one of claims 11-13, wherein the top outlet of the first air-cooling channel is close to the bottom of the heat exchanger, and the airflow in the first air-cooling channel is at least partially blown toward the the left and right ends of the heat exchanger.
15. The gas equipment according to any one of claims 11-14, wherein at least one end edge of the first cooling and heat insulation board is bent and extended to form a first bent portion extending outward, the first bent portion The folded portion extends outward to form a first connecting portion, and the first connecting portion is attached to the left side plate or the right side plate of the frame body.
16. The gas equipment according to any one of claims 11-15, wherein the first bent portion of the lower end of the first cooling and heat insulating plate is provided with an inlet of the first air cooling channel.
17. The gas equipment according to any one of claims 11-16, wherein the inlet of the first air-cooling channel comprises a plurality of strip-shaped holes arranged at intervals along the front-rear direction on the first bending portion.
18. The gas equipment according to any one of claims 11-17, wherein at least one outwardly protruding reinforcing portion is provided on the left side plate and/or the right side plate of the frame to form a notch on the inner side toward the groove of the first air cooling channel, the groove is strip-shaped and the length direction extends in the up-down direction.
19. The gas equipment according to any one of claims 10-18, wherein the rear side plate and/or the cover plate of the frame body are respectively provided with second cooling and heat insulation plates at intervals, so as to constitute a A second air-cooling channel connected to the air outlet of the fan unit, and the inlet of the second air-cooling channel is higher than the inlet of the first air-cooling channel.
20. The gas equipment according to claim 19, wherein the second cooling and thermal insulation plate extends toward the bottom of the rear side plate of the frame, and the second cooling and thermal insulation plate is located between the second cooling and thermal insulation plate and the rear side plate of the frame body. The back air inlet of the second air-cooling channel is formed by the gap, and the back air inlet is arranged close to the bottom side plate of the burner.
21. The gas equipment according to claim 19 or 20, wherein the second cooling and insulating plate extends toward the lower part of the cover plate, and a gap between the second cooling and insulating plate and the cover plate forms the The front air inlet of the second air cooling channel is higher than the height of the back air inlet.
22. The gas equipment according to any one of claims 19 to 21, wherein the second cooling and heat insulation plate extends to the side of the heat exchanger toward the rear side plate of the frame and/or the top of the cover plate part to form a thermal insulation part on the front and rear sides of the heat exchanger.
23. The gas-fired equipment according to any one of claims 19 to 22, wherein the second cooling and thermal insulation plate has at least one interception section, the interception section has a laterally extending section and a longitudinally extending section, the laterally extending section from Extending from the inside to the outside, the starting end of the longitudinally extending section is connected with the tail end of the transversely extending section, the longitudinally extending section is folded and extending upwardly and obliquely, and each of the intercepting sections has an outlet of the second air-cooling channel.
24. The gas-fired equipment according to any one of claims 19 to 23, wherein the second cooling and heat insulating plate has a plurality of the shut-off sections arranged in a longitudinal direction and connected in sequence.
25. The gas equipment according to claim 23 or 24, wherein the outlet of the second air-cooling channel comprises a plurality of strip-shaped holes arranged in the intercepting section at intervals along the left-right direction.
26. The gas-fired equipment according to any one of claims 23-25, wherein the connection between the transversely extending section and the longitudinally extending section of the uppermost shut-off section is connected to the corresponding cover plate or the The rear side plates of the frame body are in contact and fit, and the junctions of the laterally extending sections and the longitudinally extending sections of the other shut-off sections are spaced apart from the corresponding cover plates or the rear side plates of the frame body.
27. The gas equipment according to any one of claims 19-26, wherein at least one outwardly protruding reinforcing portion is provided on the rear side plate of the frame body to form a notch on the inner side toward the second wind turbine The groove of the cold channel, the groove is strip-shaped and the length direction extends in the up-down direction.
28. The gas equipment according to any one of claims 23 to 27, wherein the heat insulation part is located on the upper side of the second air-cooling channel and is connected to the longitudinally extending section of the uppermost cut-off section .
29. The gas equipment according to any one of claims 22-28, wherein the heat insulating part is an air heat insulating layer, and the air heat insulating layer is not in communication with the second air cooling channel.
30. The gas equipment according to any one of claims 19-29, wherein the second cooling and heat insulation plate has a supporting convex portion, and the supporting convex portion is located in the second air-cooling channel and is connected to the frame body the rear side panel or the cover panel.
31. The gas equipment according to any one of claims 19 to 30, wherein the lower end of the second cooling and heat insulation plate matched with the cover plate is bent and extended to form a second bent portion extending outward and The second connecting portion extending downward, the second bending portion is provided with the front air inlet of the second air-cooling channel, and the second connecting portion is attached to the cover plate.
32. The gas equipment according to any one of claims 10-31, wherein the burner has a bottom side plate, and a rear end of the bottom side plate is provided with a downwardly extending lower flange, the lower flange and The rear side plate of the frame body is attached, the lower end of the second cooling and heat insulation plate is matched with the bottom side plate, and the bottom side plate is provided with a through hole, and the through hole is connected with the second fan. The inlet of the cold aisle is communicated.
33. The gas equipment according to any one of claims 10-32, wherein the left side plate, the right side plate and the rear side plate of the frame body are integrally formed into a frame body, and the bottom plate of the frame body and the frame body are integrally formed. The bottom of the frame is connected, and the cover is connected with the frame body and the bottom plate of the frame.
34. The gas equipment according to any one of claims 10-33, wherein the front side edges of the left side plate and the right side plate of the frame body are provided with a frame body flange extending leftward or rightward, and the frame body The bottom plate of the body is provided with a bottom plate flange extending upward or downward, and the cover plate is connected with the frame body flange and the bottom plate flange.
35. A gas-fired water heater, comprising the gas-fired appliance according to any one of claims 10-34.

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