CN210486039U

CN210486039U - Gas water heater

Info

Publication number: CN210486039U
Application number: CN201921022392.6U
Authority: CN
Inventors: 张洪斌; 梁国荣; 范威; 代先锋
Original assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-05-08
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a gas water heater, gas water heater includes: a housing; the combustion assembly is arranged in the shell; the heat exchange assembly is arranged in the shell and positioned above the combustion assembly, and the heat exchange assembly is communicated with the combustion assembly; the smoke exhaust assembly is arranged in the shell and communicated with the heat exchange assembly, the smoke exhaust assembly comprises a fan, and the fan is a stepless speed regulating fan; the controller is communicated with the fan and comprises a fan rotating speed measurement and control circuit, and the controller controls the rotating speed of the fan according to information transmitted by the fan rotating speed measurement and control circuit. According to the utility model discloses gas heater has advantages such as wind-resistant performance is good, the reliability is high.

Description

Gas water heater

Technical Field

The utility model relates to an electrical apparatus makes technical field, particularly, relates to a gas heater.

Background

The gas water heater in the related art comprises a fan for providing power for gas flow and a wind pressure switch for detecting external wind pressure, so that the gas water heater can achieve the aim of wind resistance. However, the failure rate of the wind pressure switch is high, which affects the working reliability of the gas water heater, and the wind pressure switch has high requirements for the precision of the parts of the gas water heater and the design parameters, resulting in high production cost of the gas water heater.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a gas water heater, this gas water heater have advantages such as wind-resistant performance is good, the reliability is high.

In order to achieve the above object, according to the utility model discloses an embodiment provides a gas water heater, gas water heater includes: a housing; the combustion assembly is arranged in the shell; the heat exchange assembly is arranged in the shell and positioned above the combustion assembly, and the heat exchange assembly is communicated with the combustion assembly; the smoke exhaust assembly is arranged in the shell and communicated with the heat exchange assembly, the smoke exhaust assembly comprises a fan, and the fan is a stepless speed regulating fan; the controller is communicated with the fan and comprises a fan rotating speed measurement and control circuit, and the controller controls the rotating speed of the fan according to information transmitted by the fan rotating speed measurement and control circuit.

According to the utility model discloses gas heater has advantages such as wind-resistant performance is good, the reliability is high.

In addition, according to the utility model discloses gas heater of above-mentioned embodiment can also have following additional technical characterstic:

according to some embodiments of the utility model, the controller basis fan rotational speed measurement and control circuit's electric current and/or power control the rotational speed of fan.

According to some embodiments of the utility model, the fan includes rotatable wind wheel and is used for control the rotatory motor of wind wheel, the motor is direct current inverter motor.

According to some embodiments of the present invention, a heat sink is provided on the motor.

According to some embodiments of the utility model, the subassembly of discharging fume still includes: the smoke collecting hood is communicated with the heat exchange assembly; the volute, the volute with the upper portion of collection petticoat pipe links to each other, the motor with the volute links to each other, the wind wheel is located in the volute.

According to the utility model discloses a some embodiments, be equipped with the support frame on the spiral case, the motor install in the support frame, the motor passes through the support frame with the spiral case links to each other.

According to some embodiments of the utility model, the subassembly of discharging fume has the chamber of discharging fume, discharge fume the chamber with collection petticoat pipe intercommunication, the subassembly of discharging fume still includes the pipe of discharging fume, discharge fume the pipe respectively with discharge fume chamber and atmosphere intercommunication.

According to some embodiments of the invention, the combustion assembly comprises: a combustion device; an air intake device in communication with the combustion device.

According to some embodiments of the utility model, air inlet unit includes last inlet channel and lower inlet channel, lower inlet channel's cross section is greater than last inlet channel's cross section.

According to some embodiments of the utility model, burner includes dense combustor and light combustor, dense combustor has the dense gas spout, light combustor has the light gas spout, the dense gas spout is less than the light gas spout, go up inlet channel with dense combustor intercommunication, down inlet channel with the light combustor intercommunication.

According to some embodiments of the utility model, the combustor still includes gas supply unit, gas supply unit has the air supply pipe, the air supply pipe with combustion assembly links to each other, the air supply pipe is connected with the gas proportional valve.

According to some embodiments of the utility model, the subassembly of discharging fume with between the heat exchange assemblies with be equipped with the sealing member between the combustion assembly respectively, with pass through sealing member realizes sealing connection.

According to some embodiments of the utility model, heat exchange assemblies is including coil pipe water tank or no coil pipe water tank.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a gas water heater according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a gas water heater according to an embodiment of the present invention.

Reference numerals: the gas water heater comprises a gas water heater 1, a shell 100, a combustion assembly 200, a heat exchange assembly 300, a smoke exhaust assembly 400, a wind wheel 411, a motor 412, a smoke collecting hood 420, a volute 430 and a support frame 431.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A gas water heater 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1-2, a gas water heater 1 according to an embodiment of the present invention includes a housing 100, a combustion assembly 200, a heat exchange assembly 300, a smoke exhaust assembly 400, and a controller.

The combustion assembly 200 is disposed within the housing 100. Heat exchange assembly 300 is disposed within housing 100 and above combustion assembly 200 (in the up-down direction as indicated by arrow A in FIG. 1), and heat exchange assembly 300 is in communication with combustion assembly 200. The smoke exhaust assembly 400 is arranged in the shell 100, the smoke exhaust assembly 400 is communicated with the heat exchange assembly 300, and the smoke exhaust assembly 400 comprises a fan which is a stepless speed regulating fan. The controller is communicated with the fan and comprises a fan rotating speed measurement and control circuit, and the controller controls the rotating speed of the fan according to information transmitted by the fan rotating speed measurement and control circuit.

It should be understood here that the control process of the controller is as follows: the environment wind pressure influences the rotating speed of the fan, the corresponding current and/or power of the fan are changed, a change signal is transmitted to the fan rotating speed measuring and controlling circuit, and the controller correspondingly gives an instruction of the rotating speed of the fan to control the rotating speed of the fan according to the information transmitted by the fan rotating speed measuring and controlling circuit.

According to the utility model discloses gas heater 1 through setting up combustion assembly 200 and heat exchange assembly 300, makes heat exchange assembly 300 be located combustion assembly 200's top, can utilize the mixed gas production heat of combustion assembly 200 burning gas and air like this, utilizes the flue gas to carry the heat and heats heat exchange assembly 300, and the gas heater 1 of being convenient for prepares hot water, improves gas heater 1's working property.

Moreover, by providing the smoke exhaust assembly 400, the smoke exhaust assembly 400 can be used to smoothly exhaust the tail gas in the casing 100, so that the gas water heater 1 can timely exhaust the tail gas and suck the surrounding air, the normal combustion of the combustion assembly 200 is ensured, the combustion stability of the combustion assembly 200 is maintained, the influence of the downdraft on the combustion performance of the combustion assembly 200 can be reduced, and the combustion reliability and stability of the combustion assembly 200 are improved.

Furthermore, the fan is a stepless speed regulating fan by arranging the fan and the controller. And the controller controls the rotating speed of the fan according to the information transmitted by the fan rotating speed measuring and controlling circuit. Can utilize like this the controller control the rotational speed of fan compares the mode that adopts wind pressure switch or wind pressure sensor to measure the wind pressure in order to control the fan rotational speed among the correlation technique, can save wind pressure switch or wind pressure sensor's setting, not only be convenient for reduce gas heater 1's fault rate, avoid influencing gas heater 1's normal work because wind pressure switch or wind pressure sensor produce the trouble, improve gas heater 1's operational reliability, be convenient for simplify gas heater 1's structure moreover, reduce the required precision of gas heater 1 structure, reduce gas heater 1's manufacturing cost. Meanwhile, the wind resistance of the gas water heater 1 can be improved, the gas water heater 1 can still be well combusted under the condition of high wind pressure or blockage, the wind resistance and the combustion performance of the gas water heater 1 are improved, the load application range of the whole machine is improved, the functionality and the applicability of the gas water heater 1 are improved, and the working reliability and the stability of the gas water heater 1 are improved.

In addition, the controller basis the information control of fan rotational speed measurement and control circuit transmission the rotational speed of fan, regulation and control that like this can be reasonable the rotational speed of fan to in carry suitable air quantity, thereby guarantee that gas and air have reasonable proportion scope, so that the gas can fully burn, be convenient for improve the combustion reliability and the stability of gas, improve the combustion efficiency of gas, reduce the content of toxic substance in the tail gas, improve gas heater 1's feature of environmental protection.

Therefore, according to the utility model discloses gas heater 1 has advantages such as the wind-resistant performance is good, the reliability is high.

In some embodiments of the present invention, as shown in fig. 1-2, a gas water heater 1 according to embodiments of the present invention includes a housing 100, a combustion assembly 200, a heat exchange assembly 300, a smoke exhaust assembly 400, and a controller.

Specifically, the controller controls the rotating speed of the fan according to the current and/or the power of the fan rotating speed measuring and controlling circuit. Therefore, the rotating speed of the fan can be controlled through the current and/or power parameters of the fan rotating speed measuring and controlling circuit, and the accuracy and reliability of control over the rotating speed of the fan are improved.

Optionally, a motor control circuit is disposed above the motor 412, the motor control circuit has a lead connection line, the lead connection line is connected to the controller, and the motor control circuit is provided with a heat sink. The fan rotating speed measuring and controlling circuit receives the motor related information transmitted by the lead connection end line and provides corresponding motor control information, so that the rotating speed of the fan is correspondingly changed.

Further, "the motor-related information transmitted from the terminal wire" may be current and/or power parameters.

Optionally, as shown in fig. 1, the wind turbine includes a rotatable wind wheel 411 and a motor 412 for controlling the rotation of the wind wheel 411, and the motor 412 is a dc variable frequency motor. The motor 412 is in transmission connection with the wind wheel 411. Therefore, the motor 412 can be utilized to drive the wind wheel 411 to rotate, the reliable rotation of the wind wheel 411 is guaranteed, meanwhile, the rotating speed of the wind wheel 411 can be controlled through controlling the rotating speed of the motor 412, the rotating accuracy and the rotating reliability of the wind wheel 411 are improved, and the controller is further convenient to control the rotating speed of the wind wheel according to information transmitted by the wind wheel rotating speed measuring and controlling circuit.

Further, a heat sink is disposed on the motor 412. Therefore, the motor 412 can be cooled and radiated by the radiating piece, the influence on the normal work of the motor 412 caused by overhigh temperature of the motor 412 in the working process is avoided, and the working reliability and stability of the motor 412 are improved conveniently.

Optionally, the heat dissipation member may be a heat dissipation fin or a rotatable fan blade.

Specifically, as shown in fig. 1, the smoke evacuation assembly 400 further includes a smoke collection cage 420 and a volute 430, the smoke collection cage 420 being in communication with the heat exchange assembly 300. The scroll 430 is connected to the upper portion of the fume collecting cover 420, the motor 412 is connected to the scroll 430, and the wind wheel 411 is disposed in the scroll 430. Can utilize the flue gas in wind wheel 411 drive gas heater 1 to flow to collection petticoat pipe 420 like this, not only be convenient for utilize the flue gas to heat exchange assembly 300, the water in the heat exchange assembly 300 of being convenient for carries out the heat exchange with the flue gas, improves the heating efficiency of water in the heat exchange assembly 300, and collection petticoat pipe 420 of being convenient for collects the flue gas moreover to the aftertreatment of the flue gas of being convenient for with in order smooth emission.

More specifically, as shown in fig. 1, a support frame 431 is provided on the volute 430, the motor 412 is mounted on the support frame 431, and the motor 412 is connected to the volute 430 through the support frame 431. This facilitates the installation of the motor 412, improves the structural stability and reliability of the motor 412, and thus improves the working performance of the motor 412.

Optionally, the smoke exhaust assembly 400 has a smoke exhaust cavity in communication with the smoke collection hood 420, the smoke exhaust assembly 400 further comprising a smoke exhaust duct in communication with the smoke exhaust cavity and atmosphere, respectively. The smoke channel is convenient to form, the treated smoke can be discharged smoothly through the smoke discharge pipe, and the working reliability of the gas water heater 1 is ensured.

Further, the smoke exhaust cavity is hermetically connected with the smoke collecting cover 420, and the smoke exhaust pipe is hermetically connected with the smoke exhaust cavity. Therefore, the sealing performance of the flue gas channel is improved, and the flue gas can flow smoothly.

Specifically, the combustion assembly 200 includes a combustion device and an air intake device in communication with the combustion device. The smooth entering of gas and air of being convenient for like this, the gas of being convenient for and air are burnt in combustion assembly 200 department, and the heat that gas heater 1 utilized gas and air burning to release is heated water of being convenient for.

More specifically, the intake device includes an upper intake passage and a lower intake passage, and the cross section of the lower intake passage is larger than the cross section of the upper intake passage. Therefore, different gas air input amounts can be arranged in the upper air inlet channel and the lower air inlet channel, and the gas air input amount can be flexibly controlled.

Further, burner includes dense combustor and light combustor, dense combustor has dense gas spout, light combustor has light gas spout, dense gas spout is less than light gas spout, go up inlet channel with dense combustor intercommunication, lower inlet channel with light combustor intercommunication. Therefore, the concentrated burner and the dilute burner are matched for use, so that the content of nitrogen in tail gas is conveniently reduced, the emission of nitride is reduced, and the environmental protection performance of the gas water heater 1 is improved.

In particular, the rich and lean burners may each be a port burner, that is, the rich burner may have one or more rich firing ports and the lean burner may have one or more lean firing ports.

Optionally, the gas water heater 1 further comprises a gas supply device, the gas supply device is provided with a gas supply pipe, the gas supply pipe is connected with the combustion assembly 200, and the gas supply pipe is connected with a gas proportional valve. Therefore, the gas proportional valve can be used for controlling the gas inflow of the gas, so that the gas and the air can be conveniently in a proper proportion range, the gas can be conveniently and fully combusted, and the combustion efficiency of the gas is improved.

Specifically, sealing members are respectively arranged between the smoke exhaust assembly 400 and the heat exchange assembly 300 and between the heat exchange assembly 300 and the combustion assembly 200, so that the sealing connection is realized through the sealing members. This facilitates the improvement of the sealing effect between the smoke evacuation assembly 400, the heat exchange assembly 300 and the combustion assembly 200, thereby facilitating the formation of the smoke passage and the improvement of the working performance of the gas water heater 1.

Optionally, the heat exchange assembly 300 includes a coiled tube tank or a non-coiled tube tank. Therefore, heat exchange between water and flue gas can be realized by utilizing the heat exchange assembly 300, the water is heated by utilizing the heat carried by the flue gas, and the heating efficiency of the gas water heater 1 is improved.

Specifically, the smoke evacuation assembly 400 is positioned above the heat exchange assembly 300. Compared with the mode that the fan is positioned below the combustion assembly 200 in the related art, the method is convenient for simplifying the combustion assembly 200 and the assembly structure between the air supply devices, and reduces the requirement on the sealing property of the combustion assembly 200. In addition, in the related art, the air pressure in the gas water heater is positive pressure, which generates a large pressure difference in the combustion system, and if the air volume of the fan needs to be increased, the rotating speed of the fan needs to be increased, resulting in a large working noise of the gas water heater. And the work wind pressure in the gas heater 1 of this application is less, and is convenient for right the rotational speed of fan is controlled, reduces gas heater 1's noise at work, improves gas heater 1's performance, improves user's use travelling comfort.

According to the utility model discloses a specific embodiment, gas heater 1 includes casing 100, combustion assembly 200, heat exchange assembly 300, subassembly 400 and the controller of discharging fume, and in casing 100 was located to combustion assembly 200, heat exchange assembly 300 was located in casing 100 and was located the top of combustion assembly 200, and subassembly 400 of discharging fume was located in casing 100, and subassembly 400 of discharging fume is located the top of heat exchange assembly 300. Heat exchange assembly 300 is in communication with combustion assembly 200. The smoke exhaust assembly 400 is communicated with the heat exchange assembly 300, and the smoke exhaust assembly 400 comprises a fan which is a stepless speed regulating fan. The controller is communicated with the fan and comprises a fan rotating speed measuring and controlling circuit, and the controller controls the rotating speed of the fan according to the current and/or the power of the fan rotating speed measuring and controlling circuit.

A motor control circuit is arranged above the motor 412, the motor control circuit is provided with a lead connecting end wire, the end wire is connected with the controller, and the motor control circuit is provided with a radiating fin. The wind turbine includes a rotatable wind wheel 411 and a motor 412 for controlling the rotation of the wind wheel 411, and the motor 412 is a dc variable frequency motor. A heat sink is provided on the motor 412.

The smoke exhaust assembly 400 further includes a smoke collection cage 420 and a volute 430, the smoke collection cage 420 being in communication with the heat exchange assembly 300. The volute 430 is connected with the upper part of the smoke collecting cover 420, the motor 412 is connected with the volute 430, a support frame 431 is arranged on the volute 430, the motor 412 is installed on the support frame 431, the motor 412 is connected with the volute 430 through the support frame 431, and the wind wheel 411 is arranged in the volute 430. The smoke exhaust assembly 400 has a smoke exhaust cavity, the smoke exhaust cavity is connected with the smoke collecting cover 420 in a sealing mode, the smoke exhaust assembly 400 further comprises a smoke exhaust pipe, the smoke exhaust pipe is respectively communicated with the smoke exhaust cavity and the atmosphere, and the smoke exhaust pipe is respectively connected with the smoke exhaust cavity in a sealing mode.

The combustion assembly 200 includes a combustion device and an air intake device in communication with the combustion device. The air inlet device comprises an upper air inlet channel and a lower air inlet channel, and the cross section of the lower air inlet channel is larger than that of the upper air inlet channel. The combustion device comprises a thick combustor and a thin combustor, the thick combustor is provided with a thick gas nozzle, the thin combustor is provided with a thin gas nozzle, the thick gas nozzle is smaller than the thin gas nozzle, an upper air inlet channel is communicated with the thick combustor, and a lower air inlet channel is communicated with the thin combustor.

The gas water heater 1 further comprises a gas supply device, the gas supply device is provided with a gas supply pipe, the gas supply pipe is connected with the combustion assembly 200, and the gas supply pipe is connected with a gas proportional valve. Sealing elements are respectively arranged between the smoke exhaust assembly 400 and the heat exchange assembly 300 and between the heat exchange assembly 300 and the combustion assembly 200, so that the sealing connection is realized through the sealing elements. The heat exchange assembly 300 includes a coiled tube water tank or a non-coiled tube water tank.

Other constructions and operations of the gas water heater 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gas water heater, comprising:

a housing;

the combustion assembly is arranged in the shell;

the heat exchange assembly is arranged in the shell and positioned above the combustion assembly, and the heat exchange assembly is communicated with the combustion assembly;

the smoke exhaust assembly is arranged in the shell and communicated with the heat exchange assembly, the smoke exhaust assembly comprises a fan, and the fan is a stepless speed regulating fan;

the controller is communicated with the fan and comprises a fan rotating speed measurement and control circuit, and the controller controls the rotating speed of the fan according to information transmitted by the fan rotating speed measurement and control circuit.

2. The gas water heater of claim 1, wherein the controller controls the speed of the fan based on the current and/or power of the fan speed measurement and control circuit.

3. The gas water heater of claim 1, wherein the fan includes a rotatable wind wheel and a motor for controlling the rotation of the wind wheel, the motor being a dc variable frequency motor.

4. A gas water heater according to claim 3, wherein a heat sink is provided on said motor.

5. The gas water heater of claim 3, wherein the smoke evacuation assembly further comprises:

the smoke collecting hood is communicated with the heat exchange assembly;

the volute, the volute with the upper portion of collection petticoat pipe links to each other, the motor with the volute links to each other, the wind wheel is located in the volute.

6. The gas water heater of claim 5, wherein a support frame is provided on the volute, the motor is mounted on the support frame, and the motor is connected with the volute through the support frame.

7. The gas water heater of claim 5, wherein the smoke exhaust assembly has a smoke exhaust cavity in communication with the smoke collection hood, the smoke exhaust assembly further including a smoke exhaust duct in communication with the smoke exhaust cavity and atmosphere, respectively.

8. The gas water heater of claim 1, wherein the combustion assembly comprises:

a combustion device;

an air intake device in communication with the combustion device.

9. The gas water heater of claim 8, wherein the air inlet means includes an upper air inlet passage and a lower air inlet passage, the lower air inlet passage having a cross-section greater than a cross-section of the upper air inlet passage.

10. The gas water heater of claim 9, wherein said combustion means includes a rich burner having a rich gas port and a lean burner having a lean gas port, said rich gas port being smaller than said lean gas port, said upper inlet passage communicating with said rich burner and said lower inlet passage communicating with said lean burner.

11. The gas water heater of claim 1, further comprising a gas supply having a gas supply duct, the gas supply duct being connected to the combustion assembly, the gas supply duct being connected to a gas proportional valve.

12. The gas water heater of claim 1, wherein a sealing member is respectively disposed between the smoke exhaust assembly and the heat exchange assembly and between the heat exchange assembly and the combustion assembly, so as to achieve a sealing connection via the sealing member.

13. The gas water heater of claim 1, wherein the heat exchange assembly includes a coiled tube tank or a non-coiled tube tank.