CN211041381U

CN211041381U - Balance type gas water heater

Info

Publication number: CN211041381U
Application number: CN201921677259.4U
Authority: CN
Inventors: 卢楚鹏; 周奋
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-07-17
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a balanced type gas heater, include: the combustor is provided with an air inlet for combustion air to enter, the air inlet channel is provided with an air inlet and an air outlet, the air inlet is arranged outside the shell, and the air outlet is directly butted with the air inlet or arranged beside the air inlet. The external combustion-supporting air is directly guided to the combustor through the air inlet channel, so that the combustion-supporting air cannot diffuse and flow in the shell, and the service life of the gas water heater is prolonged. The utility model discloses in the mainly used gas heater field.

Description

Balance type gas water heater

Technical Field

The utility model relates to a gas heater technical field, in particular to balanced type gas heater.

Background

In the use process of the gas water heater, the water heater is often installed indoors due to the limitation of the room space and the convenience of real-time adjustment. A gas water heater is a balanced type gas water heater, and a smoke balance exchange mode of coaxially arranging a smoke exhaust pipe and an air inlet channel is adopted. The advantage of this approach is that it overcomes the problems of "windage" and indoor oxygen consumption. The existing gas water heater generally comprises a shell and a heat exchanger, wherein the heat exchanger is arranged inside the shell, and of course, some control elements, such as a control circuit board, are also arranged inside the shell. The heat exchanger will be provided with an air inlet into which combustion air enters, the external combustion air entering the interior of the casing and then entering the air inlet. However, this will have some problems, and combustion air can receive the radiation of various heat sources to make it originally have certain heat, this kind of heat diffusion inflow shell's inner space before getting into the heat exchanger, thereby carry out the heat exchange to the inner space of shell, can make the temperature rise of the temperature resistant device that does not install in the inner space of shell increase, consequently influence its life, and then shortened the life of gas heater complete machine, the potential safety hazard easily appears even.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a balanced type gas heater aims at solving at least one kind of problem that exists among the background art.

The utility model provides a solution of its technical problem is: a balanced gas water heater comprising: the combustor is provided with an air inlet for combustion air to enter, the air inlet channel is provided with an air inlet and an air outlet, the air inlet is arranged outside the shell, and the air outlet is directly butted with the air inlet or arranged beside the air inlet.

The utility model has the advantages that: the external combustion-supporting air is directly guided to the combustor through the air inlet channel, so that the combustion-supporting air cannot diffuse and flow in the shell, and the service life of the gas water heater is prolonged.

Further, the intake passage includes: intake pipe, gas collecting channel and honeycomb duct, intake pipe, gas collecting channel and honeycomb duct splice in proper order, intake pipe and gas collecting channel set up the outside at the shell, the inside at the shell is established to the honeycomb duct, the air inlet is established in the intake pipe, the gas outlet sets up on the honeycomb duct.

Through designing inlet channel into the compound form of intake pipe, gas collecting channel and honeycomb duct to with intake pipe and gas collecting channel setting in the outside of shell, just so can practice thrift the inner space of shell, make things convenient for other smooth the installing in the inner space of shell of part.

Further, the intake passage includes: intake pipe, collection portion and honeycomb duct, intake pipe, collection portion and honeycomb duct splice in proper order, the intake pipe sets up the outside at the shell, collection portion and honeycomb duct setting are in the inside of shell, the air inlet is established in the intake pipe, the gas outlet sets up on the honeycomb duct.

Through designing inlet channel into the combination form of intake pipe, collection portion and honeycomb duct to with collection portion and honeycomb duct setting in the inside of shell, just so can reduce the shared volume of whole balanced type gas heater, reduced the installation volume, pleasing to the eye moreover.

Furthermore, the balanced gas water heater also comprises a cooling pipeline and a heat exchanger, wherein the main body of the cooling pipeline is arranged in the collecting part or the flow guide pipe, and the cooling pipeline is connected in series or in parallel with the water inlet pipeline of the heat exchanger. The temperature of the combustion air can be effectively reduced through the cooling pipeline.

Furthermore, the balanced gas water heater also comprises a smoke exhaust assembly and a fan control circuit board, wherein the smoke exhaust assembly is used for exhausting smoke generated by the heat exchanger, and the fan control circuit board is arranged in a low-temperature area inside the shell. The fan control circuit board is arranged in the low-temperature area inside the shell, so that the service life of the fan control circuit board is prolonged.

Further, the low temperature region is a left and right side region of the burner or a lower side region of the burner.

Further, the smoke evacuation assembly includes: collection petticoat pipe, discharge fume pipe and direct current fan, the income smoke mouth of collection petticoat pipe communicates with heat exchanger's outlet flue, the outlet flue and the pipe intercommunication of discharging fume of collection petticoat pipe, direct current fan is used for driving the outlet flue of collection petticoat pipe with the income smoke mouth of flue gas from the collection petticoat pipe, direct current fan with fan control circuit board connects.

Further, the direct current fan is provided with a temperature sensor, the fan control circuit board is provided with a circuit breaker, the temperature sensor is used for collecting the coil temperature of the direct current fan, and when the coil temperature of the direct current fan reaches a preset threshold value, the circuit breaker disconnects the power supply of the direct current fan.

Further, the fan control circuit board is provided with a feedback speed regulating module, and the feedback speed regulating module is used for regulating the rotating speed of the direct current fan according to the coil temperature of the direct current fan. Because the resistance value of the coil of the direct current fan can change under different temperatures, the rotating speed is adjusted by monitoring the coil temperature of the direct current fan, and therefore the gas water heater works under the optimal combustion working condition.

Drawings

The present invention will be further explained with reference to the drawings and examples;

FIG. 1 is a schematic structural diagram of a balanced gas water heater of embodiment 1;

FIG. 2 is a schematic structural diagram of the balanced gas water heater of embodiment 2;

fig. 3 is a schematic structural diagram of the balanced gas water heater of embodiment 3.

In fig. 1, the trajectory shown by the arrow is the movement trajectory of combustion air; in fig. 2 and 3, the solid arrows indicate the flow trajectory of the combustion air and the dashed arrows indicate the flow trajectory of the flue gas; the coordinate arrows in fig. 1, 2 and 3 represent up, down, left and right, respectively;

100. the device comprises a shell, 200, an air inlet pipe, 300, a smoke exhaust pipe, 400, a smoke exhaust assembly, 500, a fan control circuit board, 600, a combustor, 700, an air inlet channel, 800, a heat exchanger, 900, a main control circuit board, 410, a smoke collecting cover, 420, a fan, 510, a conducting wire, 610, an water inlet section, 620, a heat exchange section, 630, a water outlet section, 710, a gas collecting cover, 720, a flow guide pipe, 730, a collecting part, 910, a first opening, 920 and a second opening.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Embodiment 1, referring to fig. 1, a balanced gas water heater includes: the combustor 600 is provided with an air inlet for combustion air to enter, the air inlet channel 700 is provided with an air inlet and an air outlet, and the air outlet is directly butted with the air inlet or is arranged beside the air inlet. The intake passage 700 is a passage through which combustion air flows, and is configured by a sheet iron or other members, and has a tubular shape, a groove shape, or a special shape. Since the combustion air may be irradiated by the heat source to have a certain temperature, the inner space of the casing 100 may have some heat-labile devices, which are affected by the combustion air if the combustion air is diffused and flowed in the inner space of the casing 100. The utility model discloses an inlet channel 700 is through in the direct water conservancy diversion of combustion air with the outside to combustor 600, combustor 600 can be timely absorb combustion air, avoided combustion air to flow at the inner space diffusion of shell 100. Wherein the movement track of the combustion air is shown as an arrow in figure 1.

The utility model provides a creative combustion air who utilizes inlet channel 700 directly the water conservancy diversion of outside combustion air to combustor 600 for combustion air can not be at the inner space diffusion flow of shell 100, influences the temperature resistant device that does not install at the shell inner space, improves gas heater's whole life-span.

Embodiment 2, referring to fig. 2, there are various configurations of the intake passage 700, and different configurations of the intake passage 700 result in different configurations of the balanced gas water heater. In the present embodiment, among others, the intake passage 700 includes: the air inlet pipe 200, the air collecting hood 710 and the guide pipe 720, wherein the air inlet pipe 200 and the air collecting hood 710 are arranged outside the shell 100, and the guide pipe 720 is arranged inside the shell 100. The inlet of the intake duct 200 serves as an intake port of the intake passage 700, and the outlet of the draft tube 720 serves as an outlet port of the intake passage 700. The upper portion of the casing 100 is provided with a first opening 910, the outlet of the air inlet pipe 200 is communicated with the first opening 910 through the gas-collecting hood 710, the inlet of the flow guide pipe 720 is communicated with the first opening 910, and the outlet of the flow guide pipe 720 is positioned beside the air inlet of the burner 600. In the present embodiment, the combustion air passes through the intake duct 200, the gas collecting hood 710, and the guide duct 720 in this order and reaches the air inlet of the burner 600. In the present embodiment, the air intake passage 700 is designed as a combination of the air intake pipe 200, the air collecting hood 710 and the flow guiding pipe 720, and the air intake pipe 200 and the air collecting hood 710 are disposed outside the casing 100, so that the internal space of the casing 100 can be saved, and other components can be conveniently and smoothly mounted in the internal space of the casing 100.

Embodiment 3, referring to fig. 3, there are various configurations of the air intake duct 700, and different configurations of the air intake duct 700 result in different configurations of the balanced gas water heater. In the present embodiment, among others, the intake passage 700 includes: the air inlet pipe 200 is arranged outside the casing 100, the guide pipe 720 and the collecting part 730 are arranged inside the casing 100, the inlet of the air inlet pipe 200 is used as the air inlet of the air inlet channel 700, and the outlet of the guide pipe 720 is used as the air outlet of the air inlet channel 700. The upper portion of the casing 100 is provided with a second opening 920, an inlet of the duct 720 is communicated with the second opening 920 through the collecting portion 730, and an outlet of the duct 720 is positioned beside an air inlet of the burner 600.

In the present embodiment, the combustion air passes through the intake duct 200, the gas collecting hood 710, and the guide duct 720 in this order and reaches the air inlet of the burner 600. In the present embodiment, the air inlet passage 700 is designed as a combination of the air inlet pipe 200, the collecting part 730 and the guide pipe 720, and the collecting part 730 and the guide pipe 720 are disposed inside the housing 100, so that the occupied volume of the whole balanced type gas water heater can be reduced, the installation volume is reduced, and the appearance is beautiful.

For further optimization of any of the above embodiments, the balanced gas water heater further includes a cooling pipeline (not shown) and a heat exchanger 800, wherein the main body of the cooling pipeline is disposed in the collecting portion 730 or the flow guide pipe 720, and the cooling pipeline is connected in series or in parallel to the water inlet pipeline of the heat exchanger 800. The temperature of the combustion air can be effectively reduced through the cooling pipeline.

Referring to fig. 2 or fig. 3, for further optimization of any one of the above embodiments, the balanced gas water heater further comprises a smoke exhaust assembly and a fan control circuit board 500. The smoke evacuation assembly and fan control circuit board 500 comprise a smoke evacuation assembly 400. The subassembly of discharging fume includes: the smoke collecting cover 410, the smoke exhaust pipe and the direct current fan 420, wherein the smoke inlet of the smoke collecting cover 410 is communicated with the smoke outlet of the heat exchanger 800, the smoke outlet of the smoke collecting cover 410 is communicated with the smoke exhaust pipe 300, and the direct current fan 420 is used for driving smoke to the smoke outlet of the smoke collecting cover 410 from the smoke inlet of the smoke collecting cover 410. The fan control circuit board 500 is used for controlling the rotation of the direct current fan 420, the fan control circuit board 500 is connected with the direct current fan 420 through a wire 510, and the fan control circuit board (500) is installed in a low temperature region inside the casing (100), wherein the low temperature region is a region lower than the average temperature inside the casing (100). In some preferred embodiments, the low temperature region is a left and right side region of the burner 600 or a lower side region of the burner 600.

When the gas water heater is in operation, the fan control circuit board 500 controls the direct current fan 420 to rotate, and the flue gas is discharged from the smoke outlet of the smoke collecting cover 410 and is discharged to the outdoor through the smoke discharge pipe 300. At this time, the inside of the burner 600 has a negative pressure, and external air enters from the intake passage 200 and from the air inlet of the burner 600 by the negative pressure. After combustion, flue gas is generated, and the flue gas is discharged to the outside through the action of the direct current fan 420, and the circulation is performed. The trajectory of the air flow is substantially as shown by the arrows in fig. 2 or 3, wherein the solid arrows indicate the flow trajectory of the combustion air and the dashed arrows indicate the flow trajectory of the flue gas.

It can be known from whole gas heater's working process, the high temperature flue gas that heat exchanger 800 produced is discharged outdoors under the effect of subassembly of discharging fume, and the temperature of flue gas is still higher (generally all have more than 120 ℃) this moment, and the high temperature of this kind of flue gas can be transmitted to direct current fan 420, because electronic components generally do not resist high temperature, consequently, this embodiment is creative separates fan control circuit board 500 and the subassembly of discharging fume, sets up fan control circuit board 500 in low temperature district. The failure rate of the fan control circuit board 500 is reduced, and the service life of the fan control circuit board 500 is prolonged.

As a further optimization of the above embodiment, the fan control circuit board 500 and the main control circuit board 900 are separately arranged. In this way, the main control circuit board 900 and the fan control circuit board 500 are arranged in a split manner, so that the installation position of the main control circuit board or the fan control circuit board is more flexible. Of course, in some embodiments, fan control circuit board 500 is provided integrally with main control circuit board 900. Therefore, the main control circuit board 900 and the fan control circuit board 500 are integrally arranged, and the whole production cost can be reduced.

As a further optimization of the above embodiment, a temperature sensor is arranged on the dc fan 420, a circuit breaker is arranged on the fan control circuit board 500, the temperature sensor is used for acquiring the coil temperature of the dc fan 420, and when the coil temperature of the dc fan 420 reaches a preset threshold value, the circuit breaker disconnects the power supply of the dc fan 420. The temperature of the direct current fan 420 is monitored in real time by the temperature sensor, so that damage to the direct current fan 420 due to overheating can be avoided. It should be noted that the circuit connection mode between the temperature sensor and the circuit breaker can be completed by the prior art, so as to achieve the function of disconnecting the power supply of the dc fan 420 by the circuit breaker when the temperature of the coil of the dc fan 420 reaches the preset threshold value. The circuit breaker may be a relay or a thyristor.

As a further optimization of the above embodiment, the fan control circuit board 500 is provided with a feedback speed regulating module, and the feedback speed regulating module is used for regulating the rotation speed of the dc fan 420 according to the coil temperature of the dc fan 420. Because the resistance value of the coil of the direct current fan 420 can change under different temperatures, the rotating speed is adjusted by monitoring the coil temperature of the direct current fan, so that the gas water heater works in the best combustion working condition. It should be noted that the feedback speed adjusting module is a module in the prior art, and the module performs a function of adjusting the rotation speed of the dc fan 420 according to the coil temperature of the dc fan 420.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A balanced gas water heater comprising: shell (100), inlet channel (700) and combustor (600), combustor (600) are equipped with the income wind gap that combustion-supporting air got into, inlet channel (700) are equipped with air inlet and gas outlet, its characterized in that: the air inlet is arranged outside the shell (100), and the air outlet is directly butted with the air inlet or arranged beside the air inlet.

2. The balanced gas water heater as defined in claim 1, wherein: the intake passage (700) includes: intake pipe (200), gas collecting channel (710) and honeycomb duct (720), intake pipe (200), gas collecting channel (710) and honeycomb duct (720) splice in proper order, intake pipe (200) and gas collecting channel (710) set up the outside at shell (100), the inside at shell (100) is established in honeycomb duct (720), the air inlet is established on intake pipe (200), the gas outlet sets up on honeycomb duct (720).

3. The balanced gas water heater as defined in claim 1, wherein: the intake passage (700) includes: intake pipe (200), collection portion (730) and honeycomb duct (720), intake pipe (200), collection portion (730) and honeycomb duct (720) splice in proper order, intake pipe (200) set up the outside at shell (100), collection portion (730) and honeycomb duct (720) set up the inside at shell (100), the air inlet is established on intake pipe (200), the gas outlet sets up on honeycomb duct (720).

4. The balanced gas water heater as defined in claim 3, wherein: the device also comprises a cooling pipeline and a heat exchanger (800), wherein the main body of the cooling pipeline is arranged in the collecting part (730) or the guide pipe (720), and the cooling pipeline is connected in series or in parallel on the water inlet pipeline of the heat exchanger (800).

5. The balanced gas water heater as defined in claim 4, wherein: further comprising: a smoke exhaust component and a fan control circuit board (500), wherein the smoke exhaust component is used for exhausting smoke generated by the heat exchanger (800), and the fan control circuit board (500) is arranged in a low-temperature area inside the shell (100).

6. The balanced gas water heater as defined in claim 5, wherein: the low temperature region is a left and right side region of the burner (600) or a lower side region of the burner (600).

7. The balanced gas water heater as defined in claim 6, wherein: the subassembly of discharging fume includes: collection petticoat pipe (410), discharge fume pipe (300) and direct current fan (420), the income smoke outlet of collection petticoat pipe (410) communicates with the outlet flue of heat exchanger (800), the outlet flue and the discharge fume pipe (300) intercommunication of collection petticoat pipe (410), direct current fan (420) are used for driving the outlet flue of collection petticoat pipe (410) with the income smoke outlet of flue gas follow collection petticoat pipe (410), direct current fan (420) with fan control circuit board (500) are connected.

8. The balanced gas water heater as defined in claim 5, wherein: the fan control circuit board (500) and the main control circuit board (900) of the balanced gas water heater are arranged in a split mode or in an integrated mode.

9. The balanced gas water heater as defined in claim 7, wherein: direct current fan (420) are equipped with temperature sensor, be equipped with the circuit breaker on fan control circuit board (500), temperature sensor is used for gathering direct current fan (420)'s coil temperature, and when direct current fan (420)'s coil temperature reached the threshold value of predetermineeing, the power supply of circuit breaker disconnection direct current fan (420).

10. The balanced gas water heater as defined in claim 7, wherein: the fan control circuit board (500) is provided with a feedback speed regulating module, and the feedback speed regulating module is used for regulating the rotating speed of the direct current fan (420) according to the coil temperature of the direct current fan (420).