Large-flow gas full-premixing heater

Abstract

The invention discloses a high-flow fuel gas full-premixing heater which comprises an outer shell, a gas inlet pipe and a gas outlet pipe. An inner housing; the water treater is arranged in the inner shell, a first containing space and a second containing space are formed in the water treater, a first connector and a second connector are formed in the outer side end of the water treater, and a plurality of first conveying ports and a plurality of second conveying ports are formed in the inner side end of the water treater; the heating pipes are annular, one end of each heating pipe is connected with the first conveying port, and the other end of each heating pipe is connected with the second conveying port; the gas connector is arranged at the top of the inner shell; the air blower is arranged at the top of the inner shell; the combustion rod is positioned in the second accommodating cavity; wherein an igniter for igniting the combustion rod is arranged at the top of the inner shell, and the multiple heating pipes are arranged at intervals and are arranged in a stacked mode in the vertical direction. By means of the mode, the multiple heating pipes arranged in parallel are adopted for heating water, large-flow hot water heating can be achieved, and the heating cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heaters, in particular to a large-flow gas full-premix heater. Background Art

[0002] Gas volumetric heater uses gas as energy and heats water through the heat generated by gas combustion to make the water temperature meet the requirements of life, heating, production process, etc. It is widely used due to its advantages such as fast heating, large water output and large built-in volume. It is mostly used to provide hot water to shopping malls, factories, hospitals, hotels or other places.

[0003] Generally speaking, the gas volumetric heaters on the market mainly heat the water in the heating tube by burning gas. However, in the traditional way, the flow rate of hot water heated by the gas volumetric heaters on the market is relatively small. This is mainly because in order to provide a heating effect, the gas volumetric heaters on the market are only equipped with one spiral heating tube. The heating tube is relatively long, and the combustion rod is located in the center of the spiral heating tube. During the heating process, the fire burned by the combustion rod will heat the water in the spiral heating tube. Therefore, water is input from one end of the heater, and after flowing through the spiral heating tube, hot water flows out from the other end of the heater. However, this design makes the flow rate of the heater relatively small, resulting in high heating costs. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a large-flow gas full premix heater, which can solve the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A large-flow gas full premix heater, characterized in that it includes: an outer shell, which is made of a non-heat-conducting material and is provided with a first receiving cavity; an inner shell, which is made of a heat-conducting material and is arranged in the first receiving cavity, wherein a second receiving cavity is arranged in the inner shell, and a side wall of the inner shell is provided with a clamping groove connected to the second receiving cavity; a water processor, which is arranged in the clamping groove of the inner shell, wherein a first receiving space and a second receiving space that are not connected are arranged in the water processor, and a first interface connected to the first receiving space and a second interface connected to the second receiving space are arranged at intervals on the outer side end of the water processor outside the second receiving cavity, a plurality of first delivery ports connected to the first receiving space are arranged at intervals along the vertical direction on one side of the inner side end of the water processor in the second receiving cavity, and a plurality of water ports connected to the second receiving space are arranged at intervals along the vertical direction on the other side of the inner side end of the water processor in the second receiving cavity. a second delivery port; a water inlet pipe, one end of which is detachably connected to the first interface; a water outlet pipe, one end of which is detachably connected to the second interface; a plurality of heating pipes, made of heat-conducting material, located in the second receiving cavity, wherein the heating pipe is in a ring shape, one end of the heating pipe is connected to the first delivery port, and the other end of the heating pipe is connected to the second delivery port; a gas connector, arranged at the top of the inner shell for connecting to the gas pipe; a blower, arranged at the top of the inner shell; a combustion rod, located in the second receiving cavity, wherein one end of the combustion rod is connected to the gas connector and the blower, so that the air output by the blower and the gas output by the gas connector are discharged from the other end of the combustion rod; wherein the aperture of the water inlet pipe and the aperture of the water outlet pipe are both larger than the aperture of the heating pipe, and an igniter for igniting the combustion rod is also provided at the top of the inner shell, the plurality of heating pipes are arranged at intervals and stacked in the vertical direction, and the combustion rod is located in the central cavity surrounded by the plurality of heating pipes.

[0008] Furthermore, the cross-section of the heating tube is circular in shape, wherein the outer wall of the heating tube is provided with a plurality of first fins at intervals along its length direction, the first fins are in a circular ring shape and are arranged around the outer wall of the heating tube, and the end of the first fin is provided with a first barb vertically connected to the first fin, the first fins of two adjacent heating tubes do not correspond to each other, and the first fins and the first barb are both made of heat-conducting material.

[0009] Furthermore, a cover plate for covering the second receiving cavity is detachably provided on the top of the inner shell, wherein the cover plate is provided with a first opening, the lighter, the gas connector and the blower are all arranged on the top surface of the cover plate, one end of the burning rod is arranged on the bottom surface of the cover plate, and the side wall of the inner shell is provided with a second opening.

[0010] Furthermore, the inner bottom wall of the first accommodating cavity of the outer shell and the bottom wall of the inner shell form a first circulation channel, the inner side wall of the outer shell and the outer side wall of the inner shell form a second circulation channel connected with the first circulation channel, wherein the bottom wall of the inner shell in the central cavity surrounded by the multiple heating tubes is provided with a smoke exhaust hole connected with the first circulation channel, and the top wall of the outer shell is provided with a smoke exhaust channel connected with the second circulation channel.

[0011] Furthermore, a plurality of second fins are arranged at intervals on the top wall of the first circulation channel, a plurality of third fins are arranged at intervals on the bottom wall of the first circulation channel, wherein the second fins and the third fins do not correspond to each other, and a plurality of fourth fins located in the second circulation channel are further arranged on the outer wall of the inner shell.

[0012] Furthermore, the end of the second fin is provided with a second barb piece vertically connected to the second fin, the end of the third fin is provided with a third barb piece vertically connected to the third fin, and the end of the fourth fin is provided with a fourth barb piece vertically connected to the fourth fin, wherein the second fin, the second barb piece, the third fin, the third barb piece, the fourth fin and the fourth barb piece are all made of heat-conducting material.

[0013] Furthermore, the combustion rod includes an upper combustion rod and a lower combustion rod, the upper combustion rod is connected to the cover plate, the upper combustion rod is provided with a first conveying channel, and the lower combustion rod is provided with a second conveying channel connected to the first conveying channel, wherein the outer wall of the upper combustion rod is formed by a sealing material layer, and the outer wall of the lower combustion rod includes a first filter screen and a second filter screen arranged around the first filter screen, and the mesh size of the second filter screen is different from the mesh size of the first filter screen.

[0014] Furthermore, a guide tube located in the second delivery channel is extended downward from the bottom of the upper combustion rod, wherein the guide tube divides the second delivery channel into an internal channel and an external channel, the upper end of the internal channel is connected to the first delivery channel, and the lower end of the internal channel is connected to the lower end of the external channel, and the cross-sectional area of ​​the guide tube is gradually reduced from top to bottom, so that the gas delivered to the combustion rod flows from the first delivery channel to the internal channel, and then from the internal channel to the external channel, and is delivered from the bottom of the external channel to the first filter screen and the second filter screen.

[0015] Furthermore, the outer wall of the guide tube is provided with a plurality of partition plates spaced apart from each other from top to bottom, wherein the partition plate is provided with an air hole at one end close to the guide tube, the horizontal length of each of the plurality of partition plates is different, and the other end of the partition plate away from the guide tube is connected to the first filter screen.

[0016] Furthermore, the space sizes of the first receiving space and the second receiving space can be changed, wherein the first interface is detachably provided with a first adapter, and the second interface is detachably provided with a second adapter, the first adapter is used to connect water inlet pipes with different flow rates, and the second adapter is used to connect water outlet pipes with different flow rates, and the water processor is provided with a control structure for controlling the connection between the multiple heating pipes and the first receiving space and / or the second receiving space according to the space size of the first receiving space or the second receiving space.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a large-flow gas full premix heater, which has the following beneficial effects: BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a large-flow gas full premix heater of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of a first partial structure of the middle heater;

[0021] Figure 3 for Figure 1 A second partial structural schematic diagram of the middle heater;

[0022] Figure 4 for Figure 1 A schematic diagram of a third partial structure of the middle heater;

[0023] Figure 5 for Figure 1A schematic diagram of the structure of multiple heating tubes of the middle heater;

[0024] Figure 6 for Figure 5 Schematic diagram of the horizontal section structure of the middle heating tube;

[0025] Figure 7 for Figure 5 A schematic diagram of the vertical cross-section structure of the middle heating tube;

[0026] Figure 8 for Figure 5 A schematic diagram of the partially enlarged structure of the middle heating tube;

[0027] Fig. 9 for Figure 1 A fourth partial structural schematic diagram of the middle heater;

[0028] Fig.10 for Figure 1 A schematic diagram of the structure of the combustion rod of the middle heater;

[0029] Fig.11 for Fig.10 A schematic structural diagram of a first embodiment of a combustion rod;

[0030] Fig.12 for Fig.11 Schematic diagram of the partial structure of the middle combustion rod;

[0031] Fig.13 for Fig.10 A schematic structural diagram of a second embodiment of a combustion rod;

[0032] Fig.14 for Figure 1 A horizontal cross-sectional structural diagram of a water treatment device of a central heater;

[0033] Fig.15 for Figure 1 Schematic diagram of the vertical cross-section structure of the water processor of the central heater. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention provides a large-flow gas full premix heater, comprising an outer shell 10, an inner shell 11, a water processor 12, a water inlet pipe 13, a water outlet pipe 14, a plurality of heating pipes 15, a gas connector 16, a blower 17 and a combustion rod 18.

[0036] The outer shell 10 is made of a heat-non-conductive material so as to have a heat-insulating effect, wherein the outer shell 10 is provided with a first receiving cavity.

[0037] The inner shell 11 is made of a heat-conducting material to have a heat transfer effect, wherein the inner shell 11 is disposed in the first receiving cavity.

[0038] Furthermore, a second receiving cavity is provided in the inner shell 11 , wherein a clamping groove communicating with the second receiving cavity is provided on a side wall of the inner shell 11 .

[0039] The water processor 12 is disposed in the retaining groove of the inner shell 11. It should be understood that the water processor 12 is partially retained in the retaining groove, that is, one end of the water processor 12 is received in the second receiving cavity, and the other end of the water processor 12 is disposed outside the retaining groove.

[0040] In this embodiment, a first receiving space 121 and a second receiving space 122 that are not connected are provided in the water treatment device 12, wherein a first interface 1211 communicating with the first receiving space and a second interface 1221 communicating with the second receiving space 122 are provided at intervals on the outer end of the water treatment device 12 outside the second receiving cavity, a plurality of first delivery ports 1212 communicating with the first receiving space 121 are provided at intervals along the vertical direction on one side of the inner end of the water treatment device 12 in the second receiving cavity, and a plurality of second delivery ports 1222 communicating with the second receiving space 122 are provided at intervals along the vertical direction on the other side of the inner end of the water treatment device 12 in the second receiving cavity 122.

[0041] Preferably, the water treatment device 12 is in a rectangular three-dimensional shape, and the first receiving space 121 and the second receiving space 122 are also in a rectangular three-dimensional shape.

[0042] One end of the water inlet pipe 13 is detachably connected to the first interface 1211 , so that water to be heated enters the first receiving space 121 through the first interface 1211 .

[0043] One end of the water outlet pipe 14 is detachably connected to the second interface 1221 , so that the heated water in the second receiving space 122 is output from the water outlet pipe 14 through the second interface 1221 .

[0044] The plurality of heating tubes 15 are made of heat-conducting material, wherein the plurality of heating tubes 15 are located in the second receiving cavity. It should be understood that the plurality of heating tubes 15 are located at the center of the second receiving cavity, and the heating tubes 15 are at a certain distance from the side wall of the second receiving cavity.

[0045] In this embodiment, the heating tube 15 is in a ring shape, wherein one end of the heating tube 15 is connected to the first delivery port 1212, so that the water to be heated in the first receiving space 121 is delivered to the heating tube 15 through the first delivery interface 1212, and the other end of the heating tube 12 is connected to the second delivery port 1222, so that the heated water in the heating tube 15 is delivered to the second receiving space 122 through the second delivery port 1222.

[0046] The gas connector 16 is disposed on the top of the inner shell 11 and is used to be connected to the gas pipe to transport the gas.

[0047] The blower 17 is disposed on the top of the inner casing 11 .

[0048] The burner rod 18 is in the second receiving cavity, wherein one end of the burner rod 18 is connected to the gas connector 16 and the blower 17, so that the air output by the blower 17 and the gas output by the gas connector 16 are discharged from the other end of the burner rod 18. In other words, the air output by the blower 17 and the gas output by the gas connector 16 are both delivered to the burner rod 18, so as to be burned in the burner rod 18 to heat the plurality of heating tubes 15.

[0049] Preferably, an igniter 19 for igniting the combustion rod 18 is also provided on the top of the inner shell 11. It should be understood that the air output by the blower 17 and the gas output by the gas connector 16 are both input from one end of the combustion rod 18 and output from the other end of the combustion rod 18 to achieve combustion.

[0050] In this embodiment, a cover plate 111 for covering the second receiving cavity is detachably provided on the top of the inner shell 11, wherein the cover plate 111 is provided with a first opening 112, and the igniter 19, the gas connector 16 and the blower 17 are all arranged on the top surface of the cover plate 111, one end of the burning rod 18 is arranged on the bottom surface of the cover plate 111, and the side wall of the inner shell 11 is provided with a second opening 113. It should be understood that the first opening 112 and the second opening 113 are provided mainly for the purpose of gas circulation.

[0051] In this embodiment, the plurality of heating tubes 15 are arranged at intervals and stacked in the vertical direction, wherein the combustion rod 18 is located in a central cavity surrounded by the plurality of heating tubes 15. That is to say, the plurality of heating tubes 15 are stacked in the vertical direction, i.e., the plurality of heating tubes 15 form a heating wall. The flame burned by the combustion rod 18 can heat the heating wall, and the heating wall formed by the plurality of heating tubes 15 can increase the heating area, and the heating effect is good.

[0052] It should be understood that the combustion rod 18 of the present embodiment can heat the water flowing through the heating tube 15. Since the plurality of heating tubes 15 are stacked in the vertical direction, the heating rod 18 can simultaneously heat the plurality of heating tubes 15 arranged in parallel, so that a large flow of hot water heating can be achieved. Compared with traditional heaters, the present embodiment heats the same volume of hot water in significantly less heating time, thereby effectively reducing the heating cost.

[0053] Preferably, the apertures of the water inlet pipe 13 and the water outlet pipe 14 are both larger than the aperture of the heating pipe 15, so as to achieve large flow rate hot water heating.

[0054] In this embodiment, the cross-section of the heating tube 15 is circular, wherein the outer wall of the heating tube 15 is provided with a plurality of first fins 151 at intervals along the length direction thereof. It should be understood that the first fins 151 have a heat-conducting effect, and the plurality of first fins 151 are provided at intervals along the length direction of the heating tube 15, which can increase the heating area of ​​the heating tube 15, thereby improving the heating effect, and can also protect the heating tube 15, on the one hand.

[0055] Preferably, the first fin 151 is annular and is disposed around the outer wall of the heating tube 15 , so that the entire outer wall of the heating tube 15 can be heated and heat-conducted multiple times.

[0056] Further, the end of the first fin 151 is provided with a first barb piece 152 vertically connected to the first fin 151. It should be understood that the first barb piece 152 can block the rapid dissipation of heat or heat energy, allowing the heat to stay in the heater 15 for a longer time.

[0057] It is worth noting that the first fins 151 of two adjacent heating tubes 15 of this embodiment do not correspond to each other, that is, the first fin 151 of the upper heating tube 15 is between the two first fins 151 of the lower heating tube 15, and the first fin 151 of the lower heating tube 15 is between the two first fins 151 of the upper heating tube 15, so that the heating effect is better.

[0058] Preferably, the first fin 151 and the first barb piece 152 are both made of heat conductive material (such as copper sheet).

[0059] In this embodiment, the inner bottom wall of the first receiving cavity of the outer shell 10 and the bottom wall of the inner shell 11 form a first circulation channel 101, and the inner side wall of the outer shell 10 (i.e., the inner side wall of the first receiving cavity) and the outer side wall of the inner shell 11 form a second circulation channel 102 connected with the first circulation channel 101, wherein the bottom wall of the inner shell 11 in the central cavity surrounded by a plurality of heating tubes 15 is provided with a smoke exhaust hole 114 connected with the first circulation channel 101, and the top wall of the outer shell 10 is provided with a smoke exhaust channel connected with the second circulation channel 102. It should be understood that an exhaust fan is provided in the first receiving cavity of the outer shell 10, and the smoke generated by the combustion in the second receiving cavity is sucked by the exhaust fan, flows from the smoke exhaust hole 114 to the first circulation channel 101, and then flows to the second circulation channel 102 and is discharged from the smoke exhaust channel.

[0060] In addition, the smoke exhausted from the smoke exhaust hole 114 is of high temperature and is accompanied by heat. In order to further recover this heat energy, a plurality of second fins 1011 are arranged at intervals on the top wall of the first circulation channel 101, and a plurality of third fins 1012 are arranged at intervals on the bottom wall of the first circulation channel 101. The outer wall of the inner shell 11 is also provided with a plurality of fourth fins 1013 in the second circulation channel 102, so as to further block the smoke through the second fins 1011, the third fins 1012 and the fourth fins 1013, so as to allow the smoke to stay in the first circulation channel 101 and the second circulation channel 102 for a longer time, and the heat energy of the smoke can also be transferred to the inner shell 11 through the second fins 1011 and the fourth fins 1013.

[0061] Preferably, the second fin 1011 and the third fin 1012 do not correspond to each other.

[0062] Furthermore, the end of the second fin 1011 is provided with a second barb piece vertically connected to the second fin 1011, the end of the third fin 1012 is provided with a third barb piece vertically connected to the third fin 1012, and the end of the fourth fin 1013 is provided with a fourth barb piece vertically connected to the fourth fin 1013, so as to further block the smoke through the second barb piece, the third barb piece and the fourth barb piece, allowing the smoke to stay longer.

[0063] Preferably, the second fin 1011 , the second barb piece, the third fin 1012 , the third barb piece, the fourth fin 1013 and the fourth barb piece are all made of heat conductive material.

[0064] In this embodiment, the combustion rod 18 includes an upper combustion rod 181 and a lower combustion rod 182, wherein the upper combustion rod 181 is connected to the cover plate 111, the upper combustion rod 181 is provided with a first delivery channel 1811, and the lower combustion rod 182 is provided with a second delivery channel 1821 connected to the first delivery channel 1811, so that air and gas are input from the first delivery channel 1811 and then delivered to the second delivery channel 1821.

[0065] Preferably, the outer wall of the upper combustion rod 181 is formed of a sealing material layer, so that the gas and air cannot be discharged from the side wall of the upper combustion rod 181, wherein the outer wall of the lower combustion rod 182 includes a first filter 183 and a second filter 184 arranged around the first filter 183, so that the air and gas can be discharged from the first filter 183 and the second filter 184. In other words, the top end of the combustion rod 18 (i.e., the upper combustion rod 181) does not burn, but the bottom end of the combustion rod 18 (i.e., the lower combustion rod 182) burns.

[0066] Furthermore, the mesh size of the second filter 184 is different from the mesh size of the first filter 183 .

[0067] It is worth noting that the horizontal plane height of the top end of the combustion rod 18 (i.e., the upper combustion rod 181) of the present embodiment is higher than the horizontal plane height of the top end of the heating wall formed by the multiple heating tubes 15, and the bottom end of the combustion rod 18 (i.e., the lower combustion rod 182) is located in the central cavity formed by the multiple heating tubes 15.

[0068] In this embodiment, a guide tube 185 located in the second delivery channel 1821 is extended downward from the bottom of the upper combustion rod 181, wherein the guide tube 185 divides the second delivery channel 1821 into an internal channel 1822 and an external channel 1823, and the upper end of the internal channel 1822 is connected to the first delivery channel 1811, so that the gas and air in the first delivery channel 1811 flow into the internal channel 1822, and the lower end of the internal channel 1822 is connected to the lower end of the external channel 1823, so that the gas and air in the internal channel 1822 flow from the bottom end of the internal channel 1822 to the external channel 1823, and then flow from the external channel 1823 to the first filter 183 and the second filter 184 to be discharged for combustion. It should be understood that the gas and air are relatively light and are emitted upwards, so the gas and air are flowed from the bottom end of the internal channel 1822 to the external channel 1823, so that the gas and air are discharged from the bottom for combustion, and the gas and air are evenly diffused in the lower combustion rod 182, resulting in a better combustion effect.

[0069] Furthermore, the cross-sectional area of ​​the guide tube 185 is gradually reduced from top to bottom, so that the gas delivered to the combustion rod 18 flows from the first delivery channel 1811 to the internal channel 1822, and then from the internal channel 1822 to the external channel 1823, and is delivered from the bottom of the external channel 1823 to the first filter 183 and the second filter 184.

[0070] Of course, in order to allow the gas to be evenly discharged from the first filter 183 and the second filter 184, in other embodiments, the outer wall of the guide tube 185 is provided with a plurality of partition plates 186 spaced from top to bottom, wherein the partition plate 186 is provided with an air hole 1861 at one end close to the guide tube 185, so that part of the gas will be transported along the bottom of the partition plate 186 to the first filter 183 and the second filter 184, and part of the gas will pass through the air hole 1861 into the next partition plate 186, which can effectively make the gas evenly distributed.

[0071] Preferably, if Figure 11-12 As shown, the horizontal lengths of each of the plurality of partition plates 186 are equal.

[0072] Of course, in other embodiments, such as Fig.13 As shown, the horizontal length of each partition plate 186 among the multiple partition plates 186 is different, and the other end of the partition plate 186 away from the guide tube 185 is connected to the first filter 183, so that the gas in the channel formed between the two partition plates 186 can only be output from the channel to the first filter 183.

[0073] Furthermore, in some embodiments, the space sizes of the first receiving space 121 and the second receiving space 122 can be changed, so that the space sizes of the first receiving space 121 and the second receiving space 122 can be changed according to actual needs to change the capacity of the heated water.

[0074] Specifically, the first interface 1211 is detachably provided with a first adapter 1210, and the second interface 1221 is detachably provided with a second adapter 1220, wherein the first adapter 1210 is used to connect the water inlet pipe 13 of different flow rates, and the second adapter 1220 is used to connect the water outlet pipe 14 of different flow rates. In other words, different types of water inlet pipes 13 and water outlet pipes 14 can be replaced according to the required space sizes of the first receiving space 121 and the second receiving space 122.

[0075] Furthermore, the water processor 12 is provided with a control structure for controlling the connection between multiple heating tubes 15 and the first receiving space 121 and / or the second receiving space 122 according to the space size of the first receiving space 121 or the second receiving space 122. In other words, the control structure can be used to control how many heating tubes 15 are needed to be connected to the first receiving space 121 and / or the second receiving space 122.

[0076] That is to say, when the space size of the first receiving space 121 and the second receiving space 122 changes, the water inlet and outlet volumes can be changed by replacing the water inlet pipe 13 and the water outlet pipe 14. At the same time, the control structure can be used to control the number of heating pipes 15 connected to the first receiving space 121 and / or the second receiving space 122 to control the flow rate of the heated water.

[0077] Specifically, the control structure includes a first driving cylinder 21 arranged at the top of the outer wall of the first receiving space 121 of the water treatment device 12, a first baffle 211 that can be lifted and lowered in the first receiving space 121, a second driving cylinder 22 arranged at the bottom of the outer wall of the first receiving space 121 of the water treatment device 12, and a second baffle 221 that can be lifted and lowered in the first receiving space 121, wherein the telescopic rod of the first driving cylinder 21 is connected to the first baffle 211 so as to drive the first baffle 211 to be lifted and lowered through the first driving cylinder 21, and the telescopic rod of the second driving cylinder 22 is connected to the second baffle 221 so as to drive the second baffle 221 to be lifted and lowered through the second driving cylinder 22. It should be understood that the first baffle 211 and the second baffle 221 are both attached to the side of the first receiving space 121 provided with the first delivery port 1212. When the first baffle 211 and the second baffle 221 are raised and lowered, the first delivery port 1212 will be blocked so that the corresponding heating pipe 15 can be closed to deliver water (or the heating pipe 15 corresponding to the first delivery port 1212 is removed), thereby changing the flow rate of delivered water. It is worth noting that the top of the first receiving space 121 of the water treatment device 12 is provided with a corresponding first chute, and the first baffle 211 is slidably raised and lowered in the first chute, and the bottom of the first receiving space 121 of the water treatment device 12 is provided with a corresponding second chute, and the second baffle 221 is slidably raised and lowered in the second chute, and the first baffle 211 and the first chute are sealed and slidably arranged (that is, the first baffle 211 is relatively long, and there is no water leakage when the first chute is slid and raised), and the second baffle 221 and the second chute are sealed and slidably arranged (that is, the second baffle 221 is relatively long, and there is no water leakage when the second chute is slid and raised).

[0078] Furthermore, the control structure also includes a third driving cylinder 23 arranged at the top of the outer wall of the second containing space 122 of the water treatment device 12, a third baffle 231 that can be lifted and lowered in the second containing space 122, a fourth driving cylinder 24 arranged at the bottom of the outer wall of the second containing space 122 of the water treatment device 12, and a fourth baffle 241 that can be lifted and lowered in the second containing space 122, wherein the telescopic rod of the third driving cylinder 23 is connected to the third baffle 231 so as to drive the third baffle 231 to be lifted and lowered by the third driving cylinder 23, and the telescopic rod of the fourth driving cylinder 24 is connected to the fourth baffle 241 so as to drive the fourth baffle 241 to be lifted and lowered by the fourth driving cylinder 24. It should be understood that the third baffle 231 and the fourth baffle 241 are both attached to the side of the second receiving space 122 where the second delivery port 1222 is provided. When the third baffle 231 and the fourth baffle 241 are raised or lowered, they will block the second delivery port 1222 so that the corresponding heating tube 15 can be closed to deliver water (or the heating tube 15 corresponding to the second delivery port 1222 can be removed), thereby changing the flow rate of the delivered water. It is worth noting that a corresponding third slide groove is provided at the top of the second receiving space 122 of the water treatment device 12, and the third baffle 231 is slidably raised and lowered in the third slide groove, and a corresponding fourth slide groove is provided at the bottom of the second receiving space 122 of the water treatment device 12, and the fourth baffle 241 is slidably raised and lowered in the fourth slide groove, and the third baffle 231 and the third slide groove are sealed and slidably arranged (that is, the third baffle 231 is relatively long, and there is no water leakage when the third slide groove slides and rises), and the fourth baffle 241 and the fourth slide groove are sealed and slidably arranged (that is, the fourth baffle 241 is relatively long, and there is no water leakage when the fourth slide groove slides and rises).

[0079] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-flow gas full premix heater, characterized in that: include: The outer shell is made of a heat-non-conductive material and is provided with a first receiving cavity; An inner shell, made of a heat-conducting material, is disposed in the first receiving cavity, wherein a second receiving cavity is disposed in the inner shell, and a clamping groove communicating with the second receiving cavity is disposed on a side wall of the inner shell; A water treatment device is arranged in the clamping groove of the inner shell, wherein the water treatment device is provided with a first receiving space and a second receiving space which are not connected, and the outer end of the water treatment device outside the second receiving cavity is provided with a first interface connected with the first receiving space and a second interface connected with the second receiving space at intervals, and a plurality of first delivery ports connected with the first receiving space are provided at intervals along the vertical direction on one side of the inner end of the water treatment device in the second receiving cavity, and a plurality of second delivery ports connected with the second receiving space are provided at intervals along the vertical direction on the other side of the inner end of the water treatment device in the second receiving cavity; A water inlet pipe, one end of which is detachably connected to the first interface; A water outlet pipe, one end of which is detachably connected to the second interface; A plurality of heating tubes, made of heat-conducting material, are located in the second receiving cavity, wherein the heating tubes are in a ring shape, one end of the heating tubes is connected to the first delivery port, and the other end of the heating tubes is connected to the second delivery port; A gas connector, arranged at the top of the inner shell, for connecting with a gas pipe; A blower, arranged on the top of the inner shell; A combustion rod is located in the second receiving cavity, wherein one end of the combustion rod is connected to the gas connector and the blower, so that the air output by the blower and the gas output by the gas connector are discharged from the other end of the combustion rod; Among them, the apertures of the water inlet pipe and the water outlet pipe are both larger than the aperture of the heating tube, and an igniter for igniting the combustion rod is also provided on the top of the inner shell body. The multiple heating tubes are arranged at intervals and stacked in the vertical direction, and the combustion rod is located in the central cavity surrounded by the multiple heating tubes.

2. The large flow gas full premix heater according to claim 1 is characterized in that: The cross-section of the heating tube is circular in shape, wherein a plurality of first fins are arranged at intervals along the length direction of the outer wall of the heating tube, the first fins are in a circular ring shape and are arranged around the outer wall of the heating tube, and a first barb piece vertically connected to the first fin is provided at the end of the first fin, the first fins of two adjacent heating tubes do not correspond to each other, and the first fins and the first barb piece are both made of heat-conducting material.

3. The large flow gas full premix heater according to claim 1 is characterized in that: The top of the inner shell is detachably provided with a cover plate for covering the second receiving cavity, wherein the cover plate is provided with a first opening, the lighter, the gas connector and the blower are all arranged on the top surface of the cover plate, one end of the burning rod is arranged on the bottom surface of the cover plate, and the side wall of the inner shell is provided with a second opening.

4. The large flow gas full premix heater according to claim 2 is characterized in that: The inner bottom wall of the first accommodating cavity of the outer shell and the bottom wall of the inner shell form a first circulation channel, the inner side wall of the outer shell and the outer side wall of the inner shell form a second circulation channel connected with the first circulation channel, wherein the bottom wall of the inner shell in the central cavity surrounded by the multiple heating tubes is provided with a smoke exhaust hole connected with the first circulation channel, and the top wall of the outer shell is provided with a smoke exhaust channel connected with the second circulation channel.

5. The large flow gas full premix heater according to claim 4 is characterized in that: The top wall of the first circulation channel is provided with a plurality of second fins at intervals, the bottom wall of the first circulation channel is provided with a plurality of third fins at intervals, wherein the second fins and the third fins do not correspond to each other, and the outer wall of the inner shell is further provided with a plurality of fourth fins located in the second circulation channel.

6. The large flow gas full premix heater according to claim 5, characterized in that: The end of the second fin is provided with a second barb piece vertically connected to the second fin, the end of the third fin is provided with a third barb piece vertically connected to the third fin, and the end of the fourth fin is provided with a fourth barb piece vertically connected to the fourth fin, wherein the second fin, the second barb piece, the third fin, the third barb piece, the fourth fin and the fourth barb piece are all made of heat conductive material.

7. The large flow gas full premix heater according to claim 5, characterized in that: The combustion rod includes an upper combustion rod and a lower combustion rod, the upper combustion rod is connected to the cover plate, the upper combustion rod is provided with a first conveying channel, and the lower combustion rod is provided with a second conveying channel connected to the first conveying channel, wherein the outer wall of the upper combustion rod is formed by a sealing material layer, and the outer wall of the lower combustion rod includes a first filter screen and a second filter screen arranged around the first filter screen, and the mesh size of the second filter screen is different from the mesh size of the first filter screen.

8. The large flow gas full premix heater according to claim 7 is characterized in that: A guide tube located in the second delivery channel is extended downward from the bottom of the upper combustion rod, wherein the guide tube divides the second delivery channel into an internal channel and an external channel, the upper end of the internal channel is connected to the first delivery channel, and the lower end of the internal channel is connected to the lower end of the external channel, and the cross-sectional area of ​​the guide tube is gradually reduced from top to bottom, so that the gas delivered to the combustion rod flows from the first delivery channel to the internal channel, and then from the internal channel to the external channel, and is delivered from the bottom of the external channel to the first filter screen and the second filter screen.

9. The large flow gas full premix heater according to claim 8, characterized in that: The outer wall of the guide tube is provided with a plurality of partition plates spaced apart from each other from top to bottom, wherein the partition plate is provided with an air vent at one end close to the guide tube, the horizontal length of each of the plurality of partition plates is different, and the other end of the partition plate away from the guide tube is connected to the first filter screen.

10. The large flow gas full premix heater according to claim 9, characterized in that: The space sizes of the first receiving space and the second receiving space can be changed, wherein the first interface is detachably provided with a first adapter, and the second interface is detachably provided with a second adapter, the first adapter is used to connect water inlet pipes with different flow rates, and the second adapter is used to connect water outlet pipes with different flow rates, and the water processor is provided with a control structure for controlling the multiple heating pipes to be connected to the first receiving space and / or the second receiving space according to the space size of the first receiving space or the second receiving space.

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