CN217604388U

CN217604388U - Wall-mounted stove

Info

Publication number: CN217604388U
Application number: CN202220009397.0U
Authority: CN
Inventors: 艾穗江; 汪为彪; 孙高
Original assignee: Macro Thermal Energy Technology Co ltd
Current assignee: Macro Thermal Energy Technology Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-10-18
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a wall-mounted furnace, which is characterized in that the wall-mounted furnace comprises a shell, a fan, a heating water outlet probe, a gas proportional valve, a three-way valve of a stepping motor, a controller, a bathing water outlet probe, a bathing water inlet probe, a heating variable frequency water pump, a water flow sensor, a bathing direct current water pump, a segmented solenoid valve, a burner, a main heat exchanger and a plate heat exchanger, wherein the input end of the main heat exchanger is connected with a heating water return pipeline, the output end of the main heat exchanger is connected with a heating water outlet pipeline, the plate heat exchanger is connected with a cold water inlet pipeline and a bathing water outlet pipeline, and the plate heat exchanger is connected between the heating water return pipeline and the heating water outlet pipeline through a valve body; the stepping motor three-way valve is connected with a heating water outlet pipeline and the plate heat exchanger, the stepping motor three-way valve is provided with a passage to lead out a heating water outlet pipe fitting, and the heating variable frequency water pump is connected with a heating water return pipe fitting. The utility model discloses when guaranteeing hot water performance, promote the heating travelling comfort.

Description

Wall-mounted stove

Technical Field

The utility model relates to a hanging stove technical field, more specifically relate to a hanging stove and control method.

Background

The heating and bathing functions of the existing wall-hanging stove product must be separately and independently operated. The wall-mounted furnaces are all bath function-priority, when a bath requirement exists in a heating mode, the sleeve-type wall-mounted furnace immediately stops the operation of a heating water pump, and the plate-exchange-type wall-mounted furnace cannot enable two circulation channels to simultaneously keep water because an original electric three-way valve only supports the switching between a system large circulation and a plate-exchange small circulation, so that only the heating water can be switched from the system large circulation to the plate-exchange small circulation to ensure the constant temperature performance of bath hot water. In the heating state, during the bathing water period, the heating water is changed into small circulation through the plate to ensure the heat exchange of the bathing water, the large circulation of the heating system has no water flow, the static system heating water cannot be heated through the boiler, and the heat dissipation capacity of the static system heating water cannot maintain the indoor temperature to be stable, so that the heating comfort is reduced.

Disclosure of Invention

The utility model aims at solving the problem of the prior art that the wall-mounted boiler is not enough and simple in structure, and can improve the heating comfort while ensuring the constant temperature performance of hot water.

The utility model discloses an adopt following technical solution to realize above-mentioned purpose: the utility model provides a hanging stove, a serial communication port, it includes the casing, the fan, heating goes out the water probe, the gas proportional valve, step motor three-way valve, a controller, the bathing goes out the water probe, the bathing is intake the probe, heating frequency conversion water pump, the rivers sensor, the bathing direct current water pump, the segmentation solenoid valve, the combustor, main heat exchanger, plate heat exchanger, the input of main heat exchanger is connected with the heating return water pipe, the output of main heat exchanger is connected with the heating outlet conduit, plate heat exchanger is connected with the cold water inlet pipe, the bathing outlet conduit, plate heat exchanger passes through the valve body and connects between heating return water pipe and heating outlet conduit, the stroke position of step motor three-way valve directly influences heating circulation flow, the flow is higher with the proportional characteristic of stroke, the uniformity is stronger, then be favorable to the controller output to match the burning load more.

The stepping motor three-way valve is connected with a heating water outlet pipeline and the plate heat exchanger, the stepping motor three-way valve is provided with a passage to lead out a heating water outlet pipe fitting, and the heating variable frequency water pump is connected with a heating water return pipe fitting.

The bathing direct-current water pump, the water flow sensor and the bathing water inlet probe are respectively arranged on the cold water inlet pipeline, and the bathing water outlet probe is arranged on the bathing water outlet pipeline.

As a further explanation of the above scheme, the heating return water probe is arranged on the heating return water pipe and is used for detecting the heating return water temperature.

Furthermore, the combustor corresponds with main heat exchanger, and the combustor is connected with the gas pipeline, and the gas proportional valve sets up on the gas pipeline, and controller connection control gas proportional valve, segmentation solenoid valve set up on the combustor for support many segmentation burning.

Furthermore, the heating variable frequency water pump is connected to the heating return pipe fitting, an input signal of the heating variable frequency water pump is a square wave signal within a frequency range specified by a manufacturer, the duty ratio of the input signal is within a specified range, the heating variable frequency water pump synchronously outputs a square wave feedback signal with fixed frequency, and the duty ratio of the square wave feedback signal is proportional to the flow.

Further, a combustion chamber and a heat exchange chamber are arranged in the shell, the main heat exchanger and the combustor are arranged in the combustion chamber, the plate heat exchanger is arranged in the heat exchange chamber, and a spacing cavity is arranged between the combustion chamber and the shell to allow air to enter.

The combustion chamber is connected with a smoke pipe inner layer smoke exhaust channel, and the fan is arranged at one end of the smoke pipe inner layer smoke exhaust channel to accelerate the smoke exhaust speed; the outer layer of the smoke pipe inlet channel is sleeved outside the inner layer of the smoke pipe, and the outer layer of the smoke pipe inlet channel is communicated with the spacing cavity, so that the fuel gas of the combustor can be fully combusted, and the heat efficiency is improved.

Furthermore, a plurality of air holes are respectively arranged on the side parts of the smoke exhaust channel on the inner layer of the smoke pipe and the air inlet channel on the outer layer of the smoke pipe so as to accelerate the gas diffusion speed.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is.

The utility model adopts the three-way valve of the stepping motor to replace the electric three-way valve, and adjusts the opening size of the passage of the large circulation and the small circulation of the plate of the system, so that the heating water can circulate in the large passage and the small passage at the same time, and the heating and bathing functions can be simultaneously operated; the heating variable-frequency water pump is used for replacing the alternating-current constant-speed water pump, so that the total circulating water flow is adjustable and is matched with the combustion load, and after the step motor three-way valve is controlled to act to enable heating and bathing to operate simultaneously, bathing water temperature and heating water temperature expected by a user can be still obtained, so that the heating comfort is improved while the hot water constant-temperature performance is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of motor stroke versus system flow.

Fig. 3 is a schematic diagram of the flow rate feedback characteristic of the heating variable-frequency water pump.

Description of the reference numerals: 1. the device comprises a fan 2, a temperature controller 3, a heating water outlet probe 4, a gas proportional valve 5, a stepping motor three-way valve 6, a controller 7, a bathing water outlet probe 8, a bathing water inlet probe 9, a heating variable frequency water pump 10, a water flow sensor 11, a bathing direct-current water pump 12, a plate heat exchanger 13, a heating water return probe 14, a burner 15, a main heat exchanger 16, a heating water return pipeline 17, a heating water outlet pipeline 18, a cold water inlet pipeline 19, a bathing water outlet pipeline 20, an expansion water tank 21, a heating water outlet pipeline 22, a heating water return pipeline 23, a spacing cavity 24, a smoke pipe inner layer smoke exhaust channel 25 and a smoke pipe outer layer air inlet channel.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly defined or limited, the terms "assembled", "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature "above," "below," and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply an elevation where the first feature is at a higher level than the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

As shown in fig. 1-3, the utility model relates to a wall-mounted boiler, it includes fan 1, temperature controller 2, heating water outlet probe 3, gas proportional valve 4, step motor three-way valve 5, controller 6, bathing water outlet probe 7, bathing water inlet probe 8, heating frequency conversion water pump 9, rivers sensor 10, bathing direct current water pump 11, plate heat exchanger 12, heating return water probe 13, combustor 14, main heat exchanger 15, the input of main heat exchanger is connected with heating return water pipe 16, the output of main heat exchanger is connected with heating outlet pipe 17, heating return water pipe 16 is external to have expansion tank 20, plate heat exchanger is connected with cold water inlet pipe 18, bathing outlet pipe 19, plate heat exchanger passes through the valve body and connects between heating return water pipe and the heating outlet pipe, the stroke position of step motor three-way valve directly influences heating circulation flow, the higher the proportional characteristic of flow and stroke, the uniformity is stronger, then be favorable to the controller output matching combustion load more; the stepping motor three-way valve is connected with a heating water outlet pipeline and the plate heat exchanger, the stepping motor three-way valve is provided with a passage for leading out a heating water outlet pipe fitting 21, and the heating variable frequency water pump is connected with a heating water return pipe fitting 22; the bathing direct-flow water pump, the water flow sensor and the bathing water inlet probe are respectively arranged on the cold water inlet pipeline, and the bathing water outlet probe is arranged on the bathing water outlet pipeline. And the heating backwater probe is arranged on the heating backwater pipeline and is used for detecting the heating backwater temperature. The combustor corresponds with main heat exchanger, and the combustor is connected with the gas pipeline, and the gas proportional valve sets up on the gas pipeline, and controller connection control gas proportional valve, segmentation solenoid valve set up on the combustor for support many segmentation burning. A combustion chamber and a heat exchange chamber are arranged in the shell, the main heat exchanger and the burner are arranged in the combustion chamber, the plate heat exchanger is arranged in the heat exchange chamber, and an interval cavity 23 is arranged between the combustion chamber and the shell for accommodating air to enter; the combustion chamber is connected with a smoke pipe inner layer smoke exhaust channel 24, and the fan is arranged at one end of the smoke pipe inner layer smoke exhaust channel to accelerate the smoke exhaust speed; the outer layer of the smoke pipe air inlet channel is arranged outside the inner layer of the smoke exhaust channel of the smoke pipe and communicated with the spacing cavity, so that the fuel gas of the combustor can be fully combusted, and the heat efficiency is improved. The side parts of the smoke exhaust channel on the inner layer of the smoke pipe and the air inlet channel on the outer layer of the smoke pipe are respectively provided with a plurality of air holes so as to accelerate the diffusion of gas.

The wall-hanging stove comprises the following control steps.

1. In the heating state, the controller 6 detects the bathing water demand from the signal of the water flow sensor 10, and calculates the burning load demand P1 of the bathing by combining the temperature signals of the bathing water outlet probe 7 and the bathing water inlet probe 8 and the bathing target temperature set by the user.

2. If the bathing load demand P1 is more than or equal to the maximum combustion load Pmax set by the wall-hanging stove, the controller 6 controls to output the maximum combustion load.

3. If the bathing load requirement P1 is less than the set maximum combustion load Pmax of the wall-hanging stove.

3.1, when the bathing target temperature Tw is not less than the heating target temperature Tc, according to the heat conduction principle, the combustion load must be controlled to ensure that the actual water outlet temperature Tout of heating is more than Tw, namely Tout is more than Tc, and then the bathing hot water with the actual water outlet temperature Tw can be obtained. Therefore, considering the comfort of house heating and avoiding the overlarge fluctuation of indoor temperature, when the controller 6 comprises an indoor temperature probe or is connected with an indoor temperature controller, whether the heating circulation needs to be kept continuously during the bathing period can be judged according to the room temperature signal; when Tout is more than or equal to Tc and K ℃, and the size of K is adjustable, heating is not started; otherwise, controlling the action of a three-way valve 5 of the stepping motor, gradually increasing the opening on the large circulation side of the system, simultaneously controlling the rotating speed of the heating variable-frequency water pump 9, matching the total flow of heating circulation and the combustion load on the basis of not influencing the constant temperature performance of bathing hot water, and keeping Tout < Tc + K ℃.

3.2, when the bathing target temperature Tw is less than the heating target temperature Tc, calculating a heating combustion load demand P2 according to the temperature signals of the heating water outlet probe 3 and the heating water return probe 13, the flow signal of the heating variable frequency water pump 9 and the heating target temperature set by a user.

3.2.1, if the P1+ P2 is more than or equal to Pmax, the controller 6 outputs the maximum load Pmax, controls the three-way valve 5 of the stepping motor to open the large circulation of the system, adjusts the action steps of the motor and controls the heating variable frequency water pump 9 to match the total flow of the heating circulation so as to maintain the constant temperature performance of the bathing hot water and simultaneously enable the actual outlet water temperature Tout of heating to be as close to the target heating temperature Tc as possible.

3.2.2, if P1+ P2 is less than Pmax, the controller 6 outputs load (P1 + P2), controls the step number of the step motor three-way valve 5, increases the rotating speed of the heating variable frequency water pump 9, matches the total flow of heating circulation, and enables the constant temperature performance of bath hot water and the actual outlet temperature of heating to meet the requirements of users.

4. After bathing water is finished, the combustion load is controlled to be the minimum load of the boiler, and the subsequent instructions are judged and executed according to the current signal conditions.

Compared with the prior art, the utility model can simultaneously operate heating and bathing, and improve the heating comfort while ensuring the hot water performance; the heating variable frequency water pump has stepless speed regulation, large flow rate and quick heating, and small flow rate is energy-saving and noise-reducing.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A wall-mounted furnace is characterized by comprising a shell, a fan, a heating water outlet probe, a gas proportional valve, a stepping motor three-way valve, a controller, a bathing water outlet probe, a bathing water inlet probe, a heating variable frequency water pump, a water flow sensor, a bathing direct current water pump, a sectional solenoid valve, a burner, a main heat exchanger and a plate heat exchanger, wherein the input end of the main heat exchanger is connected with a heating water return pipeline, the output end of the main heat exchanger is connected with a heating water outlet pipeline, the plate heat exchanger is connected with a cold water inlet pipeline and a bathing water outlet pipeline, and the plate heat exchanger is connected between the heating water return pipeline and the heating water outlet pipeline through a valve body;

the stepping motor three-way valve is connected with a heating water outlet pipeline and the plate heat exchanger, the stepping motor three-way valve is provided with a passage for leading out a heating water outlet pipe fitting, and the heating variable frequency water pump is connected with a heating water return pipe fitting;

the bathing direct-flow water pump, the water flow sensor and the bathing water inlet probe are respectively arranged on the cold water inlet pipeline, and the bathing water outlet probe is arranged on the bathing water outlet pipeline.

2. The wall-mounted furnace as claimed in claim 1, wherein the burner corresponds to the main heat exchanger, a gas pipeline is connected to the burner, a gas proportional valve is arranged on the gas pipeline, the controller is connected with and controls the gas proportional valve, and the segmented electromagnetic valve is arranged on the burner and used for supporting multi-segmented combustion.

3. The wall-hanging stove according to claim 1, wherein the heating variable frequency water pump is connected to the heating return pipe fitting, an input signal of the heating variable frequency water pump is a square wave signal, the heating variable frequency water pump synchronously outputs a fixed frequency square wave feedback signal, and the duty ratio of the square wave feedback signal is proportional to the flow rate.

4. The wall hanging stove of claim 1, wherein the housing has a combustion chamber and a heat exchange chamber, the primary heat exchanger and the burner are disposed in the combustion chamber, the plate heat exchanger is disposed in the heat exchange chamber, and a spacing cavity is disposed between the combustion chamber and the housing.

5. The wall-hanging stove of claim 4, wherein the combustion chamber is connected with a smoke pipe inner layer smoke exhaust channel, and the fan is arranged at one end of the smoke pipe inner layer smoke exhaust channel; the smoke pipe inner layer smoke exhaust passage is sleeved with a smoke pipe outer layer air inlet passage, and the smoke pipe outer layer air inlet passage is communicated with the spacing cavity.

6. The wall-hanging stove according to claim 5, wherein the side portions of the smoke pipe inner layer smoke exhaust channel and the smoke pipe outer layer air inlet channel are respectively provided with a plurality of air vents.