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Gas water heater, wind pressure detection method and fan control method

A technology of a gas water heater and a control method, which is applied to the control of fluid heaters, water heaters, fluid heaters, etc., can solve the problems of low sensitivity, delayed wind resistance of gas water heaters, potential safety hazards, etc. Time delay, the effect of preventing the overflow of ignition flame

Active Publication Date: 2022-08-09
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art that gas water heaters have time delay, low sensitivity and potential safety hazards in wind resistance, and provide a timely wind resistance, high sensitivity and safety High gas water heater, wind pressure detection method and fan control method

Method used

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  • Gas water heater, wind pressure detection method and fan control method
  • Gas water heater, wind pressure detection method and fan control method
  • Gas water heater, wind pressure detection method and fan control method

Examples

Experimental program
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Effect test

Embodiment 1

[0057] This embodiment provides a gas water heater, figure 1 , figure 2 and image 3 The plan view, exploded view and side view of the gas water heater in this embodiment are respectively shown. The gas water heater includes a fan motor 10, a wind pressure detection device 11, a double-layer smoke pipe 142 and an outer layer smoke pipe 141. In the layer of smoke pipe 14, the outer layer of smoke pipe 141 is sleeved with the inner layer of smoke pipe 142, wherein the space between the outer layer of smoke pipe 141 and the inner layer of smoke pipe 142 forms the ventilation area 1411 of the outer layer of smoke pipe 141.

[0058] One end of the inner layer smoke pipe 142 is connected to the gas collecting hood, and the other end leads to the outdoor, and the inner layer smoke pipe 142 is specially used to discharge the smoke in the gas collecting hood to the outdoor.

[0059] One end of the outer layer smoke pipe 141 leads to the outside, and the other end leads to the indoor...

Embodiment 2

[0077] This embodiment provides a wind pressure detection method, the wind pressure detection method is applied in the gas water heater as in Embodiment 1, and the wind pressure detection method includes:

[0078] The wind pressure detection device obtains the wind pressure difference between the two ends of the outer smoke pipe, and the wind pressure difference is used to adjust the operation of the fan motor.

[0079] Specifically, as Figure 4 As shown, this embodiment can specifically calculate the wind pressure difference through the following steps:

[0080] Step 201, detecting the rotational speed of the impeller through a rotational speed detection unit;

[0081] Step 202, calculating the air intake volume entering the outer smoke pipe according to the rotational speed;

[0082] Step 203: Calculate the wind pressure difference between the two ends of the outer smoke pipe according to the air intake volume.

[0083] Wherein, step 202 and step 203 may be specifically ...

Embodiment 3

[0086] This embodiment provides a fan control method for a gas-fired water heater, and the fan control method is implemented based on Embodiment 2, such as Figure 5 As shown, the fan control method includes:

[0087] Step 301: Obtain the wind pressure difference between the two ends of the outer layer smoke pipe.

[0088] Step 302: Obtain the current compensation current according to the wind pressure difference and the corresponding relationship between the preset wind pressure difference and the compensation current.

[0089] The corresponding relationship between the wind pressure difference and the compensation current can be pre-calibrated.

[0090] Step 303 , compensating the running current of the fan motor according to the current compensation current to adjust the operation of the fan motor.

[0091] Wherein, steps 301 to 303 may be specifically implemented by the computing unit in Embodiment 1.

[0092] In this embodiment, the corresponding relationship between t...

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Abstract

The invention discloses a gas water heater, a wind pressure detection method and a fan control method. The gas water heater includes a fan motor, and the gas water heater further includes a wind pressure detection device and a double-layer smoke pipe including an inner layer smoke pipe and an outer layer smoke pipe. One end of the layer smoke pipe is connected to the gas collecting hood, and the other end leads to the outdoor. The inner layer smoke pipe is used to discharge the flue gas in the gas collecting hood to the outdoor; The wind pressure detection equipment detects the wind pressure difference between the two ends of the outer smoke pipe, and the wind pressure difference is used to adjust the operation of the fan motor. On the one hand, the present invention can detect the indoor and outdoor wind pressure difference in time before the gas water heater is started, avoids the delay of the wind pressure difference detection, and further facilitates the subsequent timely compensation of the fan current according to the wind pressure difference to control the operation of the fan. On the other hand, it can also prevent the ignition flame from overflowing under the anti-wind pressure, and at the same time, because of the real-time detection of the wind pressure difference, a rapid response to the anti-wind pressure can be achieved.

Description

technical field [0001] The invention is suitable for the detection and control field of gas water heaters, and particularly relates to a gas water heater, a wind pressure detection method and a fan control method. Background technique [0002] Top-draft gas water heaters generally use a single-layer smoke pipe to discharge the flue gas generated during the operation of the gas water heater. One end of the single-layer smoke pipe is connected to the gas collecting hood, and the other end leads to the outdoor. The gas collecting hood is used to collect the operation process. The single-layer smoke pipe is used to discharge the smoke in the collecting hood to the outside. [0003] The air pressure of the gas water heater must meet the domestic or international standards, so as to ensure that the flue gas can be discharged outside in time even if there is wind backflowing from the outside when the domestic gas water heater is in use. [0004] In the prior art, the wind pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/10F24H9/00F24H9/20F24H15/242F24H15/35
CPCF24H1/107F24H9/0005F24H9/2035
Inventor 徐科杰金晶
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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