A gas combustion heat exchanger fire regulating device

Abstract

The application discloses a fire power adjusting device of a gas combustion heat exchanger. The device is provided with a gas inlet hole on an outer shell, and a fire divider is fixedly connected to the reverse surface of the outer shell. A plurality of fire holes are arranged on the fire divider, and the fire divider surrounds the gas inlet hole. A fire hole covering plate is movably connected between the fire divider and the reverse surface of the outer shell through a coupling device. The fire hole covering plate can cover one third to two thirds of the area of the fire holes. A driving device is sealingly and fixedly installed on the front surface of the outer shell. The shaft body of the driving device is movably and couplingly connected with the fire hole covering plate through the shell. The size of the fire power of the fire divider is adjusted by controlling the fire holes closed by the fire hole covering plate and the fire holes completely opened through the extension and retraction of the shaft body of the driving device. In the case that the original gas wall-hung stove water heater is operated at the minimum power, the lower combustion fire power can be adjusted by covering part of the fire holes through the fire hole covering plate, and the power is further reduced, which is more suitable for use in summer and the water temperature in summer, and the energy consumption of the gas is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a fire power adjusting device of a gas wall-hanging boiler water heater, in particular to a fire power adjusting device of a gas combustion heat exchanger. BACKGROUND

[0002] In the north, the cold time of autumn and winter is long, the wall-hanging boiler water heater takes into account heating and domestic water, and domestic use is a gas wall-hanging boiler water heater, generally 40kw-60kw high power, the fire power adjustment of the gas wall-hanging boiler water heater is adjusted by controlling the mixed flow of gas and air, and the power difference of large fire power to small fire power is about 50%, because the number of fire holes of the burner determines the minimum power operation value, if the power operation is less than the set value, the gas amount is too small to ignite, so the smallest fire power is suitable for winter heating; because the temperature difference between winter and summer in the north is several tens of degrees, the temperature difference is large, when it is summer, heating is not needed, only domestic water is needed, the fire power of the high-power gas wall-hanging boiler water heater is adjusted to the minimum, and the hot water for domestic use is too high in temperature, which can be used only by adjusting mixed cold water, resulting in waste of gas and water temperature cannot be adjusted again. SUMMARY

[0003] In order to solve the above technical problems, the present application provides a fire power adjusting device of a gas combustion heat exchanger, which is reasonable in structure design, can further adjust and reduce the fire power combustion on the basis of the minimum fire power operation of the original high-power gas wall-hanging boiler water heater, and is further suitable for summer use.

[0004] The solution to the above technical problems is as follows:

[0005] A fire power adjusting device of a gas combustion heat exchanger, the fire power adjusting device comprises a shell of a gas combustion heat exchanger and a fire divider, the shell is provided with a gas inlet hole, the opposite surface of the shell is fixedly connected with the fire divider, the fire divider is provided with a plurality of fire holes, the fire divider surrounds the gas inlet hole, a fire hole cover plate is movably connected between the fire divider and the opposite surface of the shell through a coupling device, the fire hole cover plate can block one third to two thirds of the area of the fire holes; the front surface of the shell is sealingly and fixedly provided with a driving device, the shaft body of the driving device is movably and coupled with the fire hole cover plate through the shell, and the fire power of the fire divider is adjusted by controlling the closing part of the fire holes of the fire hole cover plate and the completely opening of the fire holes through the extension and contraction of the shaft body of the driving device.

[0006] The fire adjusting device of the gas combustion heat exchanger has the beneficial effects that: the product is movably connected with the fire hole cover plate between the fire divider and the opposite surface of the shell through the coupling device, the fire hole cover plate covering one third to two thirds of the area of the fire hole can be arranged according to the model and production needs, the size of the fire of the fire divider is adjusted by controlling the fire hole of the closing part of the fire hole cover plate and the completely opened fire hole through the extension and retraction of the shaft body of the driving device; under the condition that the original gas wall-hanging stove water heater runs at the minimum power, the lower combustion fire can be adjusted after the part of the fire hole of the fire divider is covered by the fire hole cover plate, the power is further reduced, which is more suitable for summer use and the water temperature in summer, so that the energy-saving gas can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is the perspective view of the fire divider of the product of the present application;

[0008] Figure 2 It is the bottom view of the fire divider of the product of the present application;

[0009] Figure 3 It is the top view of the fire divider of the product of the present application installed with the fire hole cover plate;

[0010] Figure 4 It is the perspective view of the fire divider of the product of the present application installed with the fire hole cover plate;

[0011] Figure 5 It is the front view of the fire hole cover plate of the product of the present application;

[0012] Figure 6 It is the perspective view of the fire divider of the product of the present application installed with the fire hole cover plate;

[0013] Figure 7 It is the top view of the fire divider of the product of the present application installed with the fire hole cover plate;

[0014] Figure 8 It is the bottom view of the fire divider of the product of the present application;

[0015] Figure 9 It is the top view of the fire hole cover plate of the product of the present application;

[0016] Figure 10 It is the sectional view of the fire hole cover plate of the product of the present application closing the fire hole of the fire divider;

[0017] Figure 11 It is the sectional view of the fire hole cover plate of the product of the present application completely opening the fire hole;

[0018] Figure 12 It is the sectional view of the fire hole cover plate of the product of the present application closing the fire hole of the fire divider;

[0019] Figure 13Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0020] Figure 14 Side view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0021] Figure 15 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0022] Figure 16 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0023] Figure 17 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0024] Figure 18 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0025] Figure 19 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0026] Figure 20 、 Figure 21 Perspective view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0027] Figure 22 Perspective view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0028] Figure 23 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0029] Figure 24 Sectional view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0030] Figure 25 、 Figure 26 Schematic view of the fire hole cover plate fully opening the fire hole for the product of the present application;

[0031] Heat exchange bottom shell A, combustion chamber B, gas heat exchange channel C, smoke exhaust hole D, water inlet joint E, water outlet joint F; shell 1, gas inlet hole 11, gas diffusion shunt cavity 12, fire hole cover plate 4, rotating shaft 31, shaft hole 32, positioning guide column 3A, positioning through hole 3B, pressure reset spring 401, driving device 5, movable joint 51, screw rod device 5A, threaded tube 5A1, screw rod 5A1, pressure reset spring 6. DETAILED DESCRIPTION

[0032] A fire adjusting device of a gas combustion heat exchanger, the fire adjusting device comprises a shell 1 of the gas combustion heat exchanger and a fire divider 2, the shell 1 is provided with a gas inlet hole 11 (the gas inlet hole 11 is used for external gas to enter), the reverse side of the shell 1 is fixedly connected with the fire divider 2 (the fire divider 2 is essentially arranged in a combustion chamber of the gas combustion heat exchanger, so it is installed on the reverse side of the shell 1), the fire divider 2 is provided with a plurality of fire holes 201 (the plurality of fire holes 201 are used for diffusing combustion and increasing combustion area, and improving heat exchange efficiency), the shape of the fire hole 201 is rectangular or circular, the fire divider 2 surrounds the gas inlet hole 11, and the gas entering the gas inlet hole 11 can only be sprayed out from the fire hole 201 to burn; a fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse side of the shell 1 through a coupling device 3, the coupling device 3 is used for setting a reasonable connection structure for assisting in opening and closing the fire hole cover plate 4, and the fire hole cover plate 4 can cover one third to two thirds of the area of the fire hole 201 (the size of the fire hole cover plate 4 is produced according to the need to cover the area of the fire hole 201, for example, the fire hole cover plate 4 covering 40%, 50%, 60% or 70% of the area of the fire hole 201 is produced); a driving device 5 (the driving device 5 is not limited to electric or manual) is sealingly and fixedly installed on the front side of the shell 1, the shaft body of the driving device 5 is movably and coupled with the middle part of the fire hole cover plate 4 through the shell (the movable coupling connection provides a movement space for the fire hole cover plate 4 to turn over or stretch out and draw back), and the size of the fire of the fire divider 2 is adjusted by controlling the shaft body of the driving device 5 to stretch out and draw back to close part of the fire hole 201 of the fire hole cover plate 4 and completely open the fire hole 201.

[0033] For example, in a normal state, the shaft body passing through the driving device 5 is controlled to draw back to pull open the fire hole cover plate 4 and completely open the fire hole 201, the wall-hanging water heater is calculated according to the maximum working power of 100%, is suitable for household heating (heating) and domestic hot water use in autumn and winter, and is operated at the maximum power, the minimum working power is calculated according to 50% of the maximum working power, and the difference is 50%, even if the minimum power is operated, it is also suitable for household heating (heating) and domestic hot water use in autumn and winter;

[0034] When it is summer, the shaft body passing through the driving device 5 is controlled to stretch out to push the fire hole cover plate 4 to close part of the fire hole 201, for example, to close 50% of the area of the fire hole 201, at this time, the maximum working power of the wall-hanging water heater becomes 50% of the original, the power operation is reduced by 50%, and the power operation is further adjusted to be reduced by 20% (for example, reduced by 20%) under the condition that the power operation is reduced by 50% and the gas amount entering is reduced, at this time, only the original 30% power is operated, after adjustment, the wall-hanging water heater does not operate household heating (heating), and is only suitable for domestic hot water use, so that the energy-saving gas can be saved, and the water temperature of heating is reduced.

[0035] Further, the power of the fire adjusting device of the gas combustion heat exchanger can be set to 10KW-100KW.

[0036] Further, the coupling device 3 is a hinged device.

[0037] Further, the hinged device comprises rotating shafts 31 connected to the left and right ends of the bottom edge of the fire hole cover plate 4 and shaft holes 32 arranged at the left and right ends of the reverse surface of the shell 1 or the left and right ends of the bottom edge of the fire divider 2, the rotating shafts 31 at the left and right ends respectively penetrating into the shaft holes 32 at the left and right ends, so that the fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse surface of the shell 1; this is to reasonably set the flexible working structure of the coupling device 3, and when working, the driving device 5 pulls the fire hole cover plate 4 to completely open the fire hole 201 by the shaft body thereof, and pushes the fire hole cover plate 4 to close the fire hole 201.

[0038] Further, the coupling device 3 comprises positioning guide columns 3A arranged at the left and right ends of the fire divider 2 or the left and right ends of the reverse surface of the shell 1 and positioning through holes 3B arranged at the left and right ends of the fire hole cover plate 4, the positioning guide columns 3A penetrating into the positioning through holes 3B, so that the fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse surface of the shell 1; this is to reasonably set the flexible working structure of the coupling device 3; when working, the driving device 5 pulls the fire hole cover plate 4 to completely open the fire hole 201 by the shaft body thereof, and pushes the fire hole cover plate 4 to close the fire hole 201.

[0039] Further, the positioning guide columns 3A and the positioning through holes 3B can be mutually exchanged, that is, the positioning through holes 3B are arranged at the left and right ends of the fire divider 2 or the left and right ends of the reverse surface of the shell 1, and the positioning guide columns 3A are arranged at the left and right ends of the fire hole cover plate 4.

[0040] Further, the coupling device 3 is a metal guide rail or a dovetail groove device or a damping device or a gas cylinder device, etc., and is not limited to the flexible working structure of the coupling device 3 described above.

[0041] Further, the driving device 5 is a power device; the power device is an electric device; the electric device is a direct current motor; and the direct current motor is a stepping motor.

[0042] Further, the fire divider 2 is in the shape of a rectangle, which matches the shape of the combustion chamber of the gas combustion wall-hanging stove, and the fire divider shape is arranged reasonably. The fire divider 2 comprises a rectangular surrounding frame 21 and a fire divider plate 22, the circumferential edge of the fire divider plate 22 is connected with the bottom edge of the rectangular surrounding frame 21 (the fire divider 2 can also be integrally formed), and a rectangular gas distribution cavity 23 is formed between the rectangular surrounding frame 21 and the fire divider plate 22. The fire hole cover plate 4 is arranged in the gas distribution cavity 23, the fire hole cover plate 4 is in the shape of a rectangle, the fire hole cover plate 4 is placed in the shape matching with the gas distribution cavity 23, the length of the fire hole cover plate 4 is equivalent to the length of the gas distribution cavity 23, and the bottom edge of the fire hole cover plate 4 is close to and parallel to the bottom edge of the gas distribution cavity 23. A plurality of fire holes 201 are arranged on the fire divider plate 22.

[0043] Further, the shaft end of the shaft body of the driving device 5 is connected with the fire hole cover plate 4 through the connecting movable joint 51 to form a movable coupling connection.

[0044] Further, the shaft body of the driving device 5 is connected with the fire hole cover plate 4 through the connecting screw device 5A to form a movable coupling connection.

[0045] Further, the screw device 5A comprises a threaded pipe 5A1 and a screw 5A1, the screw is formed by adding a screw thread on the surface of the shaft body, the threaded pipe 5A1 is fixedly connected with the middle part of the fire hole cover plate 4, the screw 5A1 is screwed in the threaded pipe 5A1, and the driving device 5 drives the shaft body to rotate to make the fire hole cover plate 4 extend or retract.

[0046] Further, the reverse side of the shell 1 is provided with a gas diffusion shunt cavity 12 which is in the shape of a horn or a trapezoid, and the gas diffusion shunt cavity 12 is centrally corresponding to the gas inlet hole 11.

[0047] Further, a plurality of pressure reset springs 401 are connected between the fire hole cover plate 4 and the fire divider plate 22, which assist in stabilizing the fire hole cover plate 4, increase the reset spring force, and prevent the fire hole cover plate 4 from vibrating / loosening.

[0048] Further, the shell 1 is made of aluminum, and the fire divider 2 is made of stainless steel.

[0049] Embodiment 1:

[0050] As Figures 1-5 , Figure 10 , Figure 11 , Figures 14-17 , Figures 20-22The fire adjusting device of the gas combustion heat exchanger comprises an outer shell 1 of the gas combustion heat exchanger and a fire divider 2, the outer shell 1 is provided with a gas inlet hole 11; the reverse side of the outer shell 1 is provided with a trapezoidal gas diffusion and distribution cavity 12, the gas diffusion and distribution cavity 12 is centrally corresponding to the gas inlet hole 11, the reverse side of the outer shell 1 is fixedly connected with the fire divider 2 through bolts, the fire divider 2 centrally surrounds the gas inlet hole 11 and is aligned with the gas diffusion and distribution cavity 12, the fire divider 2 is integrally formed and has a rectangular shape; the fire divider 2 comprises a rectangular surrounding frame 21 and a fire divider plate 22, the circumferential edge of the fire divider plate 22 is connected with the bottom edge of the rectangular surrounding frame 21, and a rectangular gas distribution cavity 23 is formed between the rectangular surrounding frame 21 and the fire divider plate 22; a plurality of fire holes 201 are arranged on the fire divider plate 22, the fire holes 201 have a rectangular or circular shape, and the gas entering the gas inlet hole 11 can only be sprayed out from the fire holes 201 to burn;

[0051] A coupling device 3 is arranged between the fire divider 2 and the reverse side of the outer shell 1, the coupling device 3 is a hinged device, the hinged device comprises rotating shafts 31 connected to the left and right ends of the bottom edge of a fire hole cover plate 4 and shaft holes 32 arranged at the left and right ends of the bottom edge of the fire divider 2, the rotating shafts 31 at the left and right ends respectively penetrate into the corresponding shaft holes 32 at the left and right ends, so that the fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse side of the outer shell 1, the fire hole cover plate 4 is arranged in the gas distribution cavity 23, the fire hole cover plate 4 has a rectangular shape, the length of the fire hole cover plate 4 is equivalent to the length of the gas distribution cavity 23, and the bottom edge of the fire hole cover plate 4 is close to and in contact with the bottom edge of the gas distribution cavity 23 and is parallel to the bottom edge of the gas distribution cavity 23; the fire hole cover plate 4 can cover half of the area of the fire holes 201;

[0052] A direct current motor is fixedly arranged on the front side of the outer shell 1, the shaft end of the shaft body of the direct current motor is connected with a movable joint 51 and the middle part of the fire hole cover plate 4 to form a movable coupling connection, the size of the fire of the fire divider 2 is adjusted by controlling the motor shaft of the motor to extend or retract to close or completely open the fire holes 201 of the fire hole cover plate 4 (that is, when the direct current motor works, the motor shaft drives the fire hole cover plate 4 to extend or retract to close or completely open the fire holes 201).

[0053] In a normal state, the direct current motor is controlled to retract, the shaft body thereof pulls the fire hole cover plate 4 apart to completely open the fire holes 201, if the wall-hanging water heater is calculated according to the maximum working power of 100% (for example, the power of the wall-hanging water heater is 40kw), it is suitable for household heating (heating) and hot water for daily use in autumn and winter, and the maximum power is operated, the minimum working power is calculated according to 50% of the maximum working power (the minimum power of the wall-hanging water heater is 20kw, which is the basic ignition normal combustion power), even if the minimum power is operated (the minimum power is 20kw), it is also suitable for household heating (heating) and hot water for daily use in autumn and winter;

[0054] To summer, control control DC motor extension through its shaft body will fire hole cover plate 4 push half of the half fire hole 201, wall-mounted water heater according to the work power is reduced by 50%, from the original 40kw to 20kw, instead of 20kw as the maximum work power (that is: to the maximum ignition combustion power); At this time, can be through the wall-mounted water heater again adjust the gas flow to reduce (for example: reduce 25%, the operating power is changed to 10kw, also for the basic ignition normal combustion power after half of the half fire hole 201 is closed), equivalent to two gear adjust fuel power, not only energy saving gas, but also can adjust the water temperature to be lower.

[0055] Example 2:

[0056] As Figures 1-2 , Figures 6-9 , Figures 12-15 , Figures 18-19 : a gas combustion heat exchanger firepower adjustment device, firepower adjustment device includes gas combustion heat exchanger shell 1 and fire 2, the shell 1 is provided with gas inlet hole 11; The reverse of the shell 1 is provided with trapezoidal shape opening gas diffusion shunt cavity 12, gas diffusion shunt cavity 12 and gas inlet hole 11 in the center of the corresponding, the reverse of the shell 1 is fixedly connected with fire 2, fire 2 will gas inlet hole 11 in the center of the surrounding and align in gas diffusion shunt cavity 12, fire 2 is integrally formed and the whole is rectangular shape; The fire 2 includes rectangular surrounding frame 21 and fire plate 22, the ring circumference edge of fire plate 22 is connected with the bottom edge of rectangular surrounding frame 21, rectangular surrounding frame 21 and fire plate 22 form rectangular gas distribution cavity 23; Fire plate 22 is provided with a plurality of fire hole 201, the shape of fire hole 201 is rectangular or circular, the gas entering the gas inlet hole 11 can only be sprayed from fire hole 201 to burn;

[0057] The coupling device 3 is provided between the fire divider 2 and the reverse side of the shell 1, and includes positioning guide columns 3A arranged at the left and right ends of the fire divider 2 and positioning through holes 3B arranged at the left and right ends of the fire hole cover plate 4, the positioning guide columns 3A are inserted into the positioning through holes 3B (the positioning cooperation between the positioning guide columns 3A and the positioning through holes 3B makes the fire hole cover plate 4 stable in extension and retraction), so that the fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse side of the shell 1, the fire hole cover plate 4 is arranged in the gas distribution cavity 23, the fire hole cover plate 4 is rectangular, the length of the fire hole cover plate 4 is equivalent to the length of the gas distribution cavity 23, and the bottom edge of the fire hole cover plate 4 is close to and in contact with the bottom edge of the gas distribution cavity 23 and is parallel to the bottom edge of the gas distribution cavity 23; the fire hole cover plate 4 can cover one half of the fire hole 201 (for example, the maximum working power of the wall-hanging stove water heater is 100%, and the minimum working power is 50% of the maximum working power, with a difference of 50%; for example, the maximum working power of the completely open fire hole 201 is 40kw, and the minimum working power is 20kw; when the fire hole cover plate 4 covers one half of the fire hole 201, the other half of the fire hole 201 is not covered, and the other half of the fire hole 201 that is not covered becomes the maximum working power of 20kw, and the minimum working power becomes 10kw, which increases the power adjustment of 50% after the adjustment of the fire hole cover plate 4).

[0058] The front side of the shell 1 is sealingly and fixedly provided with a direct current motor, the shaft end of the shaft body of the direct current motor is connected with the movable joint 51 and the middle part of the fire hole cover plate 4 to form a movable coupling connection, and the extension and retraction of the motor shaft of the motor controls the lifting of the fire hole cover plate 4 to close part of the fire hole 201 and completely open the fire hole 201, so as to adjust the firepower of the fire divider 2 (that is, when the motor works, the extension and retraction of the motor shaft drives the extension and retraction of the fire hole cover plate 4 to close part of the fire hole 201 and completely open the fire hole 201).

[0059] In the normal state, the control direct current motor is retracted, the shaft body thereof pulls open the fire hole cover plate 4 to completely open the fire hole 201, if the wall-hanging stove water heater is calculated according to the maximum working power of 100% (for example, the power of the wall-hanging stove water heater is 40kw), it is suitable for home heating (heating) and hot water for life in autumn and winter (heating), and the minimum working power is calculated according to 50% of the maximum working power (the small power of the wall-hanging stove water heater is 20kw, which is the basic ignition normal combustion power), even if the minimum power is operated (the small power of 20kw), it is also suitable for home heating (heating) and hot water for life in autumn and winter;

[0060] When summer comes, the control control DC motor extends through the shaft body to push the fire hole cover plate 4 to close half of the fire hole 201, and the working power of the wall-mounted water heater is reduced by 50%, from the original 40kw to 20kw, and 20kw is used as the maximum working power (that is, the maximum ignition and combustion power); At this time, the gas flow of the wall-mounted water heater can be adjusted to reduce (for example, reduce by 25%, and the operating power becomes 10kw, which is the basic ignition and normal combustion power after closing half of the fire hole 201), which is equivalent to two-stage fuel power adjustment. Not only can energy-saving gas be saved, but the water temperature can also be adjusted to be lower.

[0061] Embodiment 3:

[0062] As shown in Figures 1-5 , Figure 10 , Figure 11 , Figures 14-17 , Figures 20-23 : A gas combustion heat exchanger, comprising a heat exchange bottom shell A and a fire power adjusting device, the heat exchange bottom shell A and the fire power adjusting device are sealed and connected through a sealing ring, and a combustion chamber B and a gas heat exchange channel C are arranged therebetween. The bottom of the heat exchange bottom shell is provided with a smoke exhaust hole D, the heat exchange bottom shell wall body is wrapped with a heat exchange water pipe, one end of the heat exchange water pipe is a water inlet connector E, and the other end is a water outlet connector F;

[0063] Water enters from the water inlet connector, flows out from the water outlet connector after passing through the heat exchange water pipe, gas enters from the gas inlet hole 11, and the fire hole 201 of the fire divider 2 sprays fire in the combustion chamber to burn, and the heat exchange channel exchanges heat after the gas is burned. The heat exchange water pipe heats the water wrapped in the heat exchange bottom shell wall body, and the smoke after combustion is discharged from the smoke exhaust hole;

[0064] The fire power adjusting device comprises an outer shell 1 and a fire divider 2 of the gas combustion heat exchanger, and the outer shell 1 is provided with a gas inlet hole 11; The reverse side of the outer shell 1 is provided with a trapezoidal-shaped gas diffusion and distribution cavity 12, the gas diffusion and distribution cavity 12 is centrally corresponding to the gas inlet hole 11, and the reverse side of the outer shell 1 is fixedly connected with the fire divider 2 through bolts. The fire divider 2 centrally surrounds the gas inlet hole 11 and is aligned with the gas diffusion and distribution cavity 12, and the fire divider 2 is integrally formed and has a rectangular shape; The fire divider 2 comprises a rectangular surrounding frame 21 and a fire plate 22, the circumferential edge of the fire plate 22 is connected with the bottom edge of the rectangular surrounding frame 21, and a rectangular gas distribution cavity 23 is formed between the rectangular surrounding frame 21 and the fire plate 22; The fire plate 22 is provided with a plurality of fire holes 201, the shape of the fire hole 201 is rectangular or circular, and the gas entering the gas inlet hole 11 can only be sprayed out to burn from the fire hole 201;

[0065] The coupling device 3 between the fire hole cover plate 4 and the back of the shell 1 is a hinged device, which includes rotating shafts 31 connected to the left and right ends of the bottom edge of the fire hole cover plate 4 and shaft holes 32 arranged at the left and right ends of the bottom edge of the fire distributor 2. The rotating shafts 31 at the left and right ends respectively pass through the corresponding shaft holes 32 at the left and right ends, so that the fire hole cover plate 4 is movably arranged between the fire distributor 2 and the back of the shell 1. The fire hole cover plate 4 is arranged in the gas distribution chamber 23 and has a rectangular shape. The length of the fire hole cover plate 4 is equivalent to the length of the gas distribution chamber 23, and the bottom edge of the fire hole cover plate 4 is close to and in contact with the bottom edge of the gas distribution chamber 23 and is parallel to it. The fire hole cover plate 4 can cover one half of the area of the fire hole 201.

[0066] The front of the shell 1 is fixedly mounted with a DC motor, and the shaft end of the shaft body of the DC motor is connected with the movable joint 51 and the middle part of the fire hole cover plate 4 to form an active coupling connection. The size of the fire of the fire distributor 2 is adjusted by controlling the extension and contraction of the motor shaft of the motor to flip the fire hole 201 of the extension and contraction closing part of the fire hole cover plate 4 and completely open the fire hole 201 (i.e., when the DC motor is working, the extension and contraction of the motor shaft drives the extension and contraction closing part of the fire hole cover plate 4 to close the fire hole 201 and completely open the fire hole 201).

[0067] In the normal state, the DC motor is controlled to retract the shaft body passing therethrough to pull open the fire hole cover plate 4 and completely open the fire hole 201. If the wall-mounted water heater is calculated at the maximum working power of 100% (for example, the power of the wall-mounted water heater is 40kw), it is suitable for home heating (heating) and hot water for life in autumn and winter (heating) and is operated at the maximum power. The minimum working power is calculated at 50% of the maximum working power (the small power of the wall-mounted water heater is 20kw, which is the basic ignition normal combustion power). Even if the minimum power is operated (small power 20kw), it is also suitable for home heating (heating) and hot water for life in autumn and winter;

[0068] In summer, the DC motor is controlled to extend the shaft body passing therethrough to push the fire hole cover plate 4 to close one half of the fire hole 201. The working power of the wall-mounted water heater is reduced by 50%, from the original 40kw to 20kw, which is taken as the maximum working power (i.e., as the maximum ignition combustion power). At this time, the gas flow of the wall-mounted water heater can be adjusted to be lower (for example, reduced by 25%, and the operating power becomes 10kw, which is also the basic ignition normal combustion power after one half of the fire hole 201 is closed). This is equivalent to two-stage adjustment of fuel power, which not only saves energy gas, but also can adjust the water temperature to be lower.

[0069] Example 4:

[0070] As Figures 1-2 , Figures 6-9 , Figures 12-15 ,Figures 18-19 、 Figure 24 The gas combustion heat exchanger comprises a heat exchange bottom shell A and a firepower adjusting device, the heat exchange bottom shell A is sealingly connected with the firepower adjusting device through a sealing ring, a combustion chamber B and a gas heat exchange channel C are arranged between the heat exchange bottom shell A and the firepower adjusting device, a smoke exhaust hole D is arranged at the bottom of the heat exchange bottom shell, the heat exchange bottom shell wall body is wrapped with a heat exchange water pipe, one end of the heat exchange water pipe is a water inlet joint E, and the other end is a water outlet joint F;

[0071] Water enters from the water inlet joint, flows out from the water outlet joint after passing through the heat exchange water pipe, gas enters from the gas inlet hole 11, is burned in the combustion chamber by the fire hole 201 of the fire divider 2, and heats the water of the heat exchange water pipe wrapped in the heat exchange bottom shell wall body after heat exchange of the gas heat exchange channel, and the smoke after combustion is discharged from the smoke exhaust hole;

[0072] The firepower adjusting device comprises an outer shell 1 of the gas combustion heat exchanger and a fire divider 2, the outer shell 1 is provided with a gas inlet hole 11; the reverse side of the outer shell 1 is provided with a trapezoidal gas diffusion shunt cavity 12, the gas diffusion shunt cavity 12 is centrally corresponding to the gas inlet hole 11, the reverse side of the outer shell 1 is fixedly connected with the fire divider 2, the fire divider 2 centrally surrounds the gas inlet hole 11 and is aligned with the gas diffusion shunt cavity 12, and the fire divider 2 is integrally formed and has a whole rectangular shape; the fire divider 2 comprises a rectangular surrounding frame 21 and a fire plate 22, the circumferential edge of the fire plate 22 is connected with the bottom edge of the rectangular surrounding frame 21, and a rectangular gas distribution cavity 23 is formed between the rectangular surrounding frame 21 and the fire plate 22; a plurality of fire holes 201 are arranged on the fire plate 22, the shape of the fire hole 201 is rectangular or circular, and the gas entering the gas inlet hole 11 can only be sprayed out from the fire hole 201 to burn;

[0073] The coupling device 3 is provided between the fire divider 2 and the reverse side of the shell 1, and includes positioning guide columns 3A arranged at the left and right ends of the fire divider 2 and positioning through holes 3B arranged at the left and right ends of the fire hole cover plate 4, the positioning guide columns 3A are inserted into the positioning through holes 3B (the positioning cooperation between the positioning guide columns 3A and the positioning through holes 3B makes the fire hole cover plate 4 stable in extension and retraction), so that the fire hole cover plate 4 is movably arranged between the fire divider 2 and the reverse side of the shell 1, the fire hole cover plate 4 is arranged in the gas distribution cavity 23, the fire hole cover plate 4 is rectangular, the length of the fire hole cover plate 4 is equivalent to the length of the gas distribution cavity 23, and the bottom edge of the fire hole cover plate 4 is close to and in contact with the bottom edge of the gas distribution cavity 23 and is parallel to the bottom edge of the gas distribution cavity 23; the fire hole cover plate 4 can cover one half of the fire hole 201 (for example, the maximum working power of the wall-hanging stove water heater is 100%, and the minimum working power is 50% of the maximum working power, with a difference of 50%; for example, the maximum working power of the completely open fire hole 201 is 40kw, and the minimum working power is 20kw; when the fire hole cover plate 4 covers one half of the fire hole 201, the other half of the fire hole 201 is not covered, and the other half of the fire hole 201 that is not covered becomes the maximum working power of 20kw, and the minimum working power becomes 10kw, which increases the power adjustment of 50% after the adjustment of the fire hole cover plate 4).

[0074] The front side of the shell 1 is sealingly and fixedly provided with a direct current motor, the shaft end of the shaft body of the direct current motor is connected with the movable joint 51 and the middle part of the fire hole cover plate 4 to form a movable coupling connection, and the extension and retraction of the motor shaft of the motor controls the lifting of the fire hole cover plate 4 to close part of the fire hole 201 and completely open the fire hole 201, so as to adjust the firepower of the fire divider 2 (that is, when the motor works, the extension and retraction of the motor shaft drives the extension and retraction of the fire hole cover plate 4 to close part of the fire hole 201 and completely open the fire hole 201).

[0075] In the normal state, the control direct current motor is retracted, the shaft body thereof pulls open the fire hole cover plate 4 to completely open the fire hole 201, if the wall-hanging stove water heater is calculated according to the maximum working power of 100% (for example, the power of the wall-hanging stove water heater is 40kw), it is suitable for home heating (heating) and hot water for life in autumn and winter (heating) and is operated at the maximum power, the minimum working power is calculated according to 50% of the maximum working power (the small power of the wall-hanging stove water heater is 20kw, which is the basic ignition normal combustion power), even if the minimum power is operated (the small power of 20kw), it is also suitable for home heating (heating) and hot water for life in autumn and winter (heating);

[0076] To summer, control control DC motor extension through its shaft body will fire hole cover plate 4 push half of the half fire hole 201, wall-mounted boiler water heater according to the work power is reduced by 50%, from the original 40kw to 20kw, instead of 20kw as the maximum work power (that is: to the maximum ignition combustion power); At this time, through the wall-mounted boiler water heater can be adjusted again gas flow reduction (for example: reduce 25%, the operating power becomes 10kw, also for the basic ignition normal combustion power after half of the half fire hole 201 is closed), equivalent to two gears to adjust the fuel power, not only energy-saving gas, but also can adjust the water temperature lower.

Claims

1. A fire control device for a gas combustion heat exchanger, comprising a shell of the gas combustion heat exchanger and a distributor, wherein the shell is provided with a gas inlet, and the distributor is fixedly connected to the reverse side of the shell, the distributor being provided with a plurality of distributor holes, the distributor surrounding the gas inlet, characterized in that: The fire hole cover plate is movably connected between the fire distributor and the reverse surface of the shell through a coupling device, and the fire hole cover plate can cover one third to two thirds of the area of the fire hole; the driving device is fixedly installed on the front surface of the shell, and the shaft body of the driving device is movably and coupled with the fire hole cover plate through the shell; the size of the firepower of the fire distributor is adjusted by controlling the fire hole cover plate to close part of the fire hole and completely open the fire hole through the extension and retraction of the shaft body of the driving device; The coupling device is a hinged device; The hinged device includes rotating shafts connected to the left and right ends of the bottom edge of the fire hole cover plate and shaft holes arranged at the left and right ends of the reverse surface of the shell or the left and right ends of the bottom edge of the fire distributor, and the rotating shafts at the left and right ends are respectively inserted into the corresponding shaft holes, so that the fire hole cover plate is movably connected between the fire distributor and the reverse surface of the shell; The driving device is a power device; the power device is an electric device; and the electric device is a direct current motor; The fire distributor as a whole has a rectangular shape; the fire distributor includes a rectangular surrounding frame and a fire plate, the circumferential edge of the fire plate is connected to the bottom edge of the rectangular surrounding frame, a rectangular gas distribution cavity is formed between the rectangular surrounding frame and the fire plate, the fire hole cover plate is arranged in the gas distribution cavity, the fire hole cover plate has a rectangular shape, the length of the fire hole cover plate is equivalent to the length of the gas distribution cavity, and the bottom edge of the fire hole cover plate is close to the bottom edge of the gas distribution cavity and is parallel to the bottom edge; a plurality of fire holes are arranged on the fire plate; The shaft end of the shaft body of the driving device is movably and coupled with the fire hole cover plate through a connecting movable joint; The reverse surface of the shell is provided with a gas diffusion and distribution cavity with a horn-shaped or trapezoidal opening, and the gas diffusion and distribution cavity is centrally corresponding to the gas inlet hole.

2. A gas combustion heat exchanger flame regulating device according to claim 1, characterized in that: A plurality of pressure return springs are connected between the fire hole cover plate and the fire plate.

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