Full-premixing fuel gas device

Abstract

The utility model discloses a full premixing fuel gas device, including casing, premixing device, fuel gas heat exchange device and rainwater collection box, casing has accommodation chamber and exhaust port, premixing device includes the intake module that can intake air and fuel gas and premixing subassembly, fuel gas heat exchange device includes burner and heat exchanger, the rainwater collection box is equipped with the rainwater collection box. The combustor is connected with the output end of the premixing assembly, the heat exchanger can exchange heat with the combustor, the heat exchanger is provided with a water inlet and a water outlet, the rainwater collecting box is detachably arranged in the containing cavity and located above the fuel gas heat exchange device, the exhaust pipe extends upwards to penetrate through the smoke outlet, and a gap is formed between the exhaust pipe and the smoke outlet. A plurality of barrier strips arranged at intervals are arranged on the bottom wall of the water collecting tank, and all the barrier strips extend towards the drainage pipe. The rainwater collecting box can be detachably installed in the containing cavity, rainwater can fall into the water collecting groove through the gap along with the pipe wall after entering the smoke exhaust pipe, the blocking strip is arranged in the water collecting groove and can block impurities and garbage, and drainage and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas device, especially relates to a full premix gas device. BACKGROUND

[0002] Full premix gas device can mix gas and air fully before burning, then burn, so that it can improve the combustion efficiency and reduce pollutant emission, in the prior art, the smoke exhaust pipe is generally extended to the outdoor to exhaust flue gas, therefore, rainwater and impurities such as dust can seep into the gas device from the smoke exhaust pipe, causing circuit short circuit or corrosion of components, in the prior art, the structure for draining rainwater is generally arranged at the smoke exhaust pipe, but the external dust or impurities can accumulate with rainwater, and then block the rainwater drainage structure, so that the drainage is troublesome, therefore, the structure needs to be further optimized. SUMMARY

[0003] The utility model discloses at least solve one of the prior art technical problems. Therefore, the utility model provides a full premix gas device, can solve the problem of rainwater seepage and maintenance trouble.

[0004] The full premix gas device according to the first aspect of the utility model discloses a casing, premix device, gas heat exchange device and rainwater collection box, the casing has accommodating cavity and smoke outlet, the premix device is located in the accommodating cavity, the premix device includes the air intake module and premix subassembly that can enter air and gas, the output end of the air intake module is connected with the premix subassembly, the gas heat exchange device includes burner and heat exchanger, the burner is connected with the premix subassembly output end, and can exhaust smoke through the smoke outlet, the heat exchanger can exchange heat with the burner, the heat exchanger has water inlet and water outlet, the rainwater collection box is detachably arranged in the accommodating cavity and located above the gas heat exchange device, the rainwater collection box has water collecting tank, exhaust pipe and drain pipe, the exhaust pipe is arranged at the bottom wall of the water collecting tank, and the exhaust pipe extends upwards through the smoke outlet, the gap between the exhaust pipe and the smoke outlet, the gap is located above the water collecting tank, the bottom wall of the water collecting tank is provided with a plurality of interval arranged baffle strips, and each baffle strip extends towards the drain pipe.

[0005] The full-premix gas device has at least the following beneficial effects: the premixing device can realize the hot water function by pre-mixing gas and air and then entering the gas heat exchange device to exchange heat with the heat exchanger through the burner, the rainwater collecting box can be detachably installed in the accommodating cavity, the rainwater collecting box can drain rainwater through the gap between the exhaust pipe and the smoke outlet, the smoke outlet is connected to the outdoor smoke exhaust pipe, after the rainwater enters the smoke exhaust pipe, the rainwater can fall into the water collecting groove through the gap along the pipe wall, the water collecting groove is provided with a blocking strip, the blocking strip can block impurities and garbage to prevent the impurities and garbage from entering the drain pipe and causing blockage, the rainwater can overflow into the combustion area, and the rainwater collecting box can be detached and cleaned and maintained, and maintenance is facilitated.

[0006] According to some embodiments of the present application, the exhaust pipe is provided with a plurality of positioning portions in the circumferential direction, and the positioning portions abut against the smoke outlet to make the exhaust pipe coaxial with the smoke outlet and define the gap.

[0007] According to some embodiments of the present application, the exhaust pipe is arranged on the side close to the water collecting groove, the drain pipe is arranged on the side close to the other side of the water collecting groove, and the blocking strip is arranged between the exhaust pipe and the drain pipe.

[0008] According to some embodiments of the present application, the bottom wall of the water collecting groove is gradually inclined downward along the direction from the exhaust pipe to the drain pipe.

[0009] According to some embodiments of the present application, the sound absorber is detachably arranged in the accommodating cavity, and the sound absorber is connected between the air inlet module and the premixing assembly through a pipeline.

[0010] According to some embodiments of the present application, the sound absorber is arranged on the front side of the gas heat exchange device.

[0011] According to some embodiments of the present application, the sound absorber is arranged in a U-shaped form, the sound absorber is provided with a sound absorbing cavity in the middle portion, and the two ends of the sound absorber are arranged downward.

[0012] According to some embodiments of the present application, the condensate water collector is further arranged, the bottom of the heat exchanger is provided with a condensate water outlet, and the condensate water collector can be connected with the condensate water outlet.

[0013] According to some embodiments of the present application, the bottom of the casing is provided with an air inlet, the top is provided with the smoke outlet, the premixing assembly is arranged on the lower portion of the accommodating cavity, the air inlet module is arranged below the premixing assembly, the gas heat exchange device is arranged above the premixing assembly, and the sound absorber is arranged on the front side of the gas heat exchange device.

[0014] According to some embodiments of the present application, the accommodating cavity is further provided with a partition plate, the partition plate is horizontally arranged to divide the accommodating cavity into an upper cavity and a lower cavity, the premixing assembly and the gas heat exchange device are located in the upper cavity, and the air inlet module is located in the lower cavity.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above or additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings, wherein:

[0017] Figure 1 is a schematic view of some embodiments of the present application;

[0018] Figure 2 is Figure 1 an exploded view of the structure;

[0019] Figure 3 is a structural view of the rainwater collecting box;

[0020] Figure 4 is an internal component layout view of some embodiments of the present application;

[0021] Figure 5 is a structural view of the silencer;

[0022] Figure 6 is a structural view of the condensate water collector.

[0023] Reference signs:

[0024] Housing 100, accommodating cavity 110, smoke exhaust port 120, partition plate 130;

[0025] Premixing device 200, air inlet module 210, premixing assembly 220;

[0026] Gas heat exchange device 300, burner 310, heat exchanger 320, water inlet 321, water outlet 322, condensate water outlet 323;

[0027] Rainwater collecting box 400, water collecting tank 410, blocking strip 411, exhaust pipe 420, positioning portion 421, drain pipe 430, gap 440;

[0028] Silencer 500, silencer cavity 510;

[0029] Condensate water collector 600. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, are for the purpose of explanation only and are not to be construed as limiting the present application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Referring to Figures 1 to 4The full premix gas device according to the first aspect embodiment of the utility model, including casing 100, premix device 200, gas heat exchange device 300 and rainwater collection box 400, casing 100 has and is arranged in the cavity 110 and the smoke outlet 120, premix device 200 is located in the cavity 110, premix device 200 includes the air intake module 210 and premix subassembly 220 that can enter air and gas, the output end of air intake module 210 is connected with premix subassembly 220, gas heat exchange device 300 includes burner 310 and heat exchanger 320, burner 310 is connected with the output end of premix subassembly 220, and can pass through the smoke outlet 120 and smoke, heat exchanger 320 can be heat exchanged with burner 310, heat exchanger 320 has water inlet 321 and water outlet 322, rainwater collection box 400 is detachably arranged in the cavity 110 and is located above gas heat exchange device 300, rainwater collection box 400 has water collecting tank 410, exhaust pipe 420 and drain pipe 430, exhaust pipe 420 is arranged at the bottom wall of water collecting tank 410, and exhaust pipe 420 extends upwards through the smoke outlet 120, and the gap 440 between exhaust pipe 420 and the smoke outlet 120, the gap 440 is located above water collecting tank 410, the bottom wall of water collecting tank 410 is provided with a plurality of interval arranged fender 411, each fender 411 extends towards drain pipe 430.Premix device 200 can enter gas and air premix into gas heat exchange device 300 through burner 310 combustion and heat exchanger 320 heat exchange to realize hot water function, and rainwater collection box 400 can be detachably installed in the cavity 110, rainwater collection box 400 passes through the gap 440 between exhaust pipe 420 and the smoke outlet 120 and drains rainwater, the smoke outlet 120 is connected to the smoke exhaust pipe outside the house, after rainwater enters the smoke exhaust pipe, can fall into water collecting tank 410 through the gap 440 along the pipe wall, and the fender 411 is arranged in water collecting tank 410, the fender 411 can block impurities and garbage to prevent entering drain pipe 430 and being blocked, so that rainwater overflows into the combustion area, and rainwater collection box 400 can also be disassembled and cleaned and maintained, which is convenient for maintenance.

[0034] Specifically, the air inlet module 210 can be provided as a valve assembly, and the specific structure is a conventional technology, which is not described in detail herein. The air inlet module 210 can control the on-off of the gas. The premixing assembly 220 can input the air and the input gas into the burner 310 after mixing by a stirring mechanism. The specific mixing structure is a conventional technical means, which is not described in detail herein. The gas can be premixed and combusted. The burner 310 can combust and heat exchange the heat exchanger 320. The heat exchanger 320 can be provided with a coil pipe. The coil pipe is in communication with the water inlet 321. The cold water is input into the water inlet 321, heated by the coil pipe, and then output from the water outlet 322 for use by the user. The flue gas of the burner 310 is discharged from the smoke outlet 120. (The connection pipes are not shown in the drawings.) Among them, the rainwater collecting box 400 can be integrally formed with the water collecting groove 410, the exhaust pipe 420, and the drain pipe 430. It is not necessary to manufacture multiple parts or assemble multiple parts. It is convenient to manufacture. The rainwater collecting box 400 can be integrally and detachably installed in the cabinet 100, which is convenient for disassembly and maintenance. It can be conceived that the rainwater collecting box 400 can be connected to the cabinet 100 by a fastener or can be clamped to the cabinet 100 by a clamping structure. The drain pipe 430 of the rainwater collecting box 400 can extend upward through the smoke outlet 120. The smoke outlet 120 is used to install a smoke exhaust pipe. The smoke exhaust pipe is in communication with the outside. Therefore, rainwater, dust, leaves and other debris will enter the gas device along the wall of the smoke exhaust pipe, which can easily damage the gas components. Therefore, the gap 440 between the exhaust pipe 420 and the smoke outlet 120 can allow the above-mentioned debris to fall into the water collecting groove 410. The water collecting groove 410 can block the debris so that the debris will not fall into the gas heat exchange device 300. The water collecting groove 410 is provided with a plurality of blocking strips 411. The blocking strips 411 are arranged at intervals. The interval between the blocking strips 411 is for water flow to the drain pipe 430. The blocking strips 411 can block large-volume debris such as leaves from falling into the drain pipe 430, thereby avoiding blockage. The rainwater collecting box 400 can be disassembled and cleaned, which is convenient for maintenance.

[0035] It can be understood that the rainwater collecting box 400 can be used as an optional accessory. When the smoke exhaust pipe outlet is located in the rain shelter or the balcony, the rainwater collecting box 400 can not be selected to reduce the use cost.

[0036] It should be noted that the height of the blocking strip 411 can gradually increase along the direction from the exhaust pipe 420 to the drain pipe 430 to reduce the flow resistance of the rainwater. Alternatively, the top of the blocking strip 411 can be provided with a downward inclined slope close to the exhaust pipe 420.

[0037] Referring to Figures 1 to 3In some embodiments of the utility model, exhaust pipe 420 is provided with a plurality of positioning portions 421, and the positioning portions 421 abut against the smoke outlet 120 to make the exhaust pipe 420 coaxial with the smoke outlet 120 and define the gap 440. Specifically, the positioning portions 421 can be provided with four, and each positioning portion 421 is uniformly spaced, and the outer side of the positioning portion 421 can abut against the smoke outlet 120 to position, so that the exhaust pipe 420 is coaxial with the smoke outlet 120, facilitating installation and positioning, and the positioning portion 421 can also define the gap 440 to allow rainwater and sundries to fall into the water collecting tank 410.

[0038] Referring to Figure 3 In some embodiments of the utility model, the exhaust pipe 420 is arranged on one side close to the water collecting tank 410, the drain pipe 430 is arranged on the other side close to the water collecting tank 410, and the blocking strip 411 is arranged between the exhaust pipe 420 and the drain pipe 430. Specifically, the exhaust pipe 420 can receive rainwater from the smoke pipe, and the rainwater falling into the water collecting tank 410 can flow towards the drain pipe 430 on the other side and then be discharged from the drain pipe 430. The blocking strip 411 can be arranged on the flow path of the rainwater, and the blocking strip 411 can block the flowing rainwater and block large sundries. Arranging the exhaust pipe 420 and the drain pipe 430 on the two sides close to the water collecting tank 410 can fully block the sundries and ensure smooth drainage.

[0039] Referring to Figure 3 In some embodiments of the utility model, the bottom wall of the water collecting tank 410 is gradually inclined downward along the direction from the exhaust pipe 420 to the drain pipe 430. Specifically, the inclined arrangement of the bottom wall of the water collecting tank 410 can facilitate the flow of rainwater to the drain pipe 430.

[0040] Referring to Figure 2 And Figure 4 In some embodiments of the utility model, the sound absorber 500 is detachably arranged in the accommodating cavity 110, and the sound absorber 500 is connected between the air inlet module 210 and the premixing assembly 220 through a pipeline. Specifically, the sound absorber 500 can be used as a component and is detachably mounted in the casing 100. The sound absorber 500 can be connected to the casing 100 through fasteners or clamping structures, facilitating disassembly and assembly. The sound absorber 500 is connected to the air inlet module 210 and the premixing assembly 220 through a pipeline. The sound absorber 500 can reduce the noise of gas flow, making the gas device run more quietly. The sound absorber 500 can be selected according to customer requirements to reduce the use cost.

[0041] Referring to Figure 2 And Figure 4 In some embodiments of the utility model, the sound absorber 500 is arranged on the front side of the gas heat exchange device 300. Specifically, the sound absorber 500 arranged on the front side can facilitate disassembly and assembly.

[0042] Referring to Figure 5 In some embodiments of the present application, the muffler 500 is provided in a U-shaped form, and the muffler 500 is provided with a sound attenuation cavity 510 in the middle, and the two ends of the muffler 500 are arranged downward. Specifically, the U-shaped muffler 500 is arranged downward, so that the two ends of the muffler 500 can be conveniently connected with the gas heat exchange device 300 through a pipeline, and the muffler 500 is provided with a sound attenuation cavity 510 in the middle, and the sound attenuation cavity 510 is provided with a sound attenuation structure, so as to reduce the noise of gas flow.

[0043] Referring to Figure 4 and Figure 6 In some embodiments of the present application, the condensate collector 600 is further provided, and the heat exchanger 320 is provided with a condensate outlet 323 at the bottom, and the condensate collector 600 can be connected with the condensate outlet 323. Specifically, the heat exchanger 320 will produce condensate during heat exchange, and the condensate can be discharged from the condensate outlet 323 at the bottom, and can be connected with the condensate collector 600 through a pipeline, so as to avoid direct discharge of condensate and cause pollution.

[0044] Referring to Figure 4 In some embodiments of the present application, the bottom of the casing 100 is provided with an air inlet, and the top is provided with a smoke outlet 120, the premixing assembly 220 is arranged at the lower part of the accommodating cavity 110, and the air inlet module 210 is located below the premixing assembly 220, the gas heat exchange device 300 is arranged above the premixing assembly 220, and the muffler 500 is arranged at the front side of the gas heat exchange device 300. Specifically, the bottom of the casing 100 is provided with an air inlet, and the top is provided with a smoke outlet 120, the premixing assembly 220 can be arranged at the lower part of the accommodating cavity 110, the air inlet module 210 can be provided as a valve group and is located at the bottom and is connected with the air inlet, which is convenient for external air inlet pipeline arrangement, the air inlet is connected with the premixing assembly 220 upwardly, and the premixing assembly 220 is connected with the gas heat exchange device 300 upwardly, the flue gas of the gas heat exchange device 300 is discharged from the smoke outlet 120 at the top, and the muffler 500 is arranged at the front side of the gas heat exchange device 300, so that each component can be arranged in the accommodating cavity 110, and the upper rainwater collecting box 400 and the front muffler 500 can be directly disassembled without interference with other components, so as to facilitate disassembly and assembly of parts.

[0045] Referring to Figure 4In some embodiments of the utility model, the accommodating cavity 110 is also provided with a partition plate 130, the partition plate 130 is horizontally arranged to divide the accommodating cavity 110 into an upper cavity and a lower cavity, the premixing assembly 220 and the gas heat exchange device 300 are located in the upper cavity, and the air inlet module 210 is located in the lower cavity. Specifically, the partition plate 130 can divide the accommodating cavity 110, the upper cavity is mainly used for the operation of the burner 310, the temperature is relatively high, and it is relatively dangerous, the air inlet assembly in the lower cavity is a valve group, needs to be maintained frequently, and the operation environment needs to be stable, through the arrangement of the partition plate 130, the lower cavity can be independently separated by heat insulation, when maintaining, the upper cavity does not need to be opened, and maintenance is facilitated.

[0046] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A fully premixed gas appliance characterised in that, The utility model relates to a kind of gas heat exchange device and rainwater collection box, including: Casing (100) with accommodating cavity (110) and smoke outlet (120); Premixing device (200) is located in the accommodating cavity (110), the premixing device (200) includes air intake module (210) and premixing component (220) capable of air and gas intake, the output end of the air intake module (210) is connected with the premixing component (220); Gas heat exchange device (300), including burner (310) and heat exchanger (320), the burner (310) is connected with the output end of premixing component (220), and smoke can be discharged through the smoke outlet (120), the heat exchanger (320) can exchange heat with the burner (310), the heat exchanger (320) has water inlet (321) and water outlet (322); Rainwater collection box (400) is detachably arranged in the accommodating cavity (110) and is located above the gas heat exchange device (300), the rainwater collection box (400) has water collection tank (410), exhaust pipe (420) and drain pipe (430), the exhaust pipe (420) is arranged at the bottom wall of the water collection tank (410), and the exhaust pipe (420) extends upwards through the smoke outlet (120), the exhaust pipe (420) and the smoke outlet (120) have gap (440) therebetween, the gap (440) is located above the water collection tank (410), the bottom wall of the water collection tank (410) is provided with a plurality of spaced apart baffle strips (411), each baffle strip (411) extends towards the drain pipe (430).

2. The fully premixed gas appliance of claim 1, wherein, The exhaust pipe (420) is provided with a plurality of positioning portions (421) around the circumference, the positioning portions (421) abut against the smoke outlet (120) to make the exhaust pipe (420) coaxial with the smoke outlet (120) and define the gap (440).

3. The fully premixed gas appliance of claim 1, wherein, The exhaust pipe (420) is arranged close to one side of the water collection tank (410), the drain pipe (430) is arranged close to the other side of the water collection tank (410), and the baffle strips (411) are arranged between the exhaust pipe (420) and the drain pipe (430).

4. The fully premixed gas appliance of claim 3, wherein, The bottom wall of the water collection tank (410) is gradually inclined downward in the direction from the exhaust pipe (420) to the drain pipe (430).

5. The fully premixed gas appliance of claim 1, wherein, It also includes a silencer (500), which is detachably arranged in the accommodating cavity (110), and the silencer (500) is connected between the air intake module (210) and the premixing component (220) through a pipeline.

6. The fully premixed gas appliance of claim 5, wherein, The silencer (500) is arranged in front of the gas heat exchange device (300).

7. The fully premixed gas appliance of claim 6, wherein, The silencer (500) is arranged in a U shape, the silencer (500) is provided with a silencing cavity (510) in the middle, and the two ends of the silencer (500) are arranged downward.

8. The fully premixed gas appliance of claim 1, wherein, It also includes a condensate collector (600), the bottom of the heat exchanger (320) is provided with a condensate outlet (323), and the condensate collector (600) can be connected with the condensate outlet (323).

9. The fully premixed gas appliance of claim 5, wherein, The bottom of the casing (100) is provided with an air inlet, the top is provided with the smoke outlet (120), the premixing assembly (220) is arranged at the lower part of the accommodating cavity (110), the air inlet module (210) is located below the premixing assembly (220), the gas heat exchange device (300) is arranged above the premixing assembly (220), and the silencer (500) is arranged at the front side of the gas heat exchange device (300).

10. The fully premixed gas appliance of claim 1, wherein, The accommodating cavity (110) is further provided with a partition plate (130), the partition plate (130) is arranged transversely to divide the accommodating cavity (110) into an upper cavity and a lower cavity, the premixing assembly (220) and the gas heat exchange device (300) are located in the upper cavity, and the air inlet module (210) is located in the lower cavity.

Images