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Dynamoelectric proportion valve automatic subsection antifreeze constant temp gas water heater

A technology for electric proportional valves and gas water heaters, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as inability to maintain constant temperature, failure to reduce firepower, and fluctuations in outlet water temperature, and achieve simple and effective control. Increase the effect of easy to use and advanced structure

Inactive Publication Date: 2008-10-01
朱殿臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Problem 1 lies in: the spool of the electromagnetic proportional valve (5) is a floating quick-opening characteristic structure, which cannot control the small air volume, resulting in the fact that the firepower cannot be lowered and the temperature cannot be kept constant in summer, and it is gas-consuming and scalding.
[0006] Problem 2 lies in: the intelligent segmentation method of segmenting

Method used

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  • Dynamoelectric proportion valve automatic subsection antifreeze constant temp gas water heater
  • Dynamoelectric proportion valve automatic subsection antifreeze constant temp gas water heater
  • Dynamoelectric proportion valve automatic subsection antifreeze constant temp gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The water outlet temperature sensor 1, the water inlet temperature sensor 3, the Hall water flowmeter 6, the photoelectric head 12, the stepping motor 16, the setting button 23 are connected with the single chip microcomputer 25. The single-chip microcomputer 25 samples the set temperature values ​​of the Hall water flow meter 6 and the water inlet temperature sensor 3 from time to time respectively. When the flow rate of the water flow meter 6 reaches a certain value, the single-chip microcomputer 25 commands: atmospheric ignition, the opening of the gas valve core 4 is 35%, the stepping motor 16 rotates, and the gear 17, the gear 18, the valve plate 27, and the gas valve core 4 are opened. When the photoelectric head 12 reads the data of the code disc 15 as 35% of the stroke, the stepper motor 16 rotates and stops, and the opening of the valve plate 27 gas valve core 4 is set at 35%; the electromagnetic valve 5 is opened, and the gas passes through the valve seat 28, t...

Embodiment 2

[0034] The difference between embodiment 2 and embodiment 1 is: there is no code disc 15 and photoelectric head 12 in embodiment 2. In the initial state, the initial switch 13 resets the counter of the memory stepping motor 16 rotation steps to zero. Valve plate 27 and valve seat 28 block the gas path. When the single-chip microcomputer 25 instruction gas valve core 4 was opened 35%, the single-chip microcomputer 25 directly provided the steps that the stepper motor 16 rotated and rotated, and the valve plate 27 gas valve core 4 produced 35% vent holes. The size of the range of steps that the stepper motor 16 rotates is proportional to the size of the range of the gas flux produced by the valve plate 27 gas valve core 4 and the valve seat 28 .

Embodiment 3

[0036] The difference between embodiment 3 and embodiment 1 is: there is no code disc 15 photoelectric head 12 and start switch 13 in embodiment 3. Use mechanical limiter, valve plate 27 and valve seat 28 block the gas path in the initial state, the gas hole on the gas valve core 4 is blocked by valve seat 28 or leaves a minimum hole. The counter of the stepping motor 16 rotation steps is automatically reset, and the valve position output of the single-chip microcomputer 25 is marked as the gas valve core 4 at the initial opening position. The opening degree of the gas valve core 4 controlled by the operation output of the single-chip microcomputer 25 is exactly the number of steps of the stepping motor 16 corresponding to the ratio. The size of the range of steps that the stepper motor 16 rotates is proportional to the size of the range of the gas flux produced by the valve plate 27 gas valve core 4 and the valve seat 28 .

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Abstract

An antifreeze constant temp gas water heater with a electric proportion valve for grading automatically, wherein the electric proportion valve is configured as a single-chip (25), a valve sheet (27), a gas valve core (4), a valve seat (28), a stepping motor (16), a photohead (12), a initialize switch (13), a water exit heat meter (1), a incoming flow heat meter (3), a hall water flowmeter (6) setting temperature value for providing proportional control data to the single-chip (25); implementing automatic switch between anti flash fire and fire row, gliding steadily linear scale gas supply, and the adjusting performance with little heat load is better than that of the constant-temperature water heater of the electromagnetic proportion valve greatly. The gas water heater effects with good usage, utility, energy-saving, water-saving are further increased because the product is low cost, advanced structure and remarkable effect. The gas water heaters without constant temperature regulating heat load in little range is placed gradually.

Description

technical field [0001] The invention relates to a water heater, especially a constant temperature gas water heater. Background technique [0002] Existing constant temperature gas water heater, see figure 1 , mainly composed of outlet water temperature sensor (1), fire distribution pipe (2), inlet water temperature sensor (3), electromagnetic proportional valve (5), segmented electromagnetic valve (19), Hall water flow meter (6), pulse Box (7), power supply box (8), measuring fire pin (11), blower fan motor (13) constitutes, and display (24) and setting button (23) are installed on the casing surface. [0003] The existing electromagnetic proportional valve constant temperature gas water heater temperature adjustment method is: the single-chip microcomputer samples the water flow, water inlet temperature, and set temperature respectively, and after calculation, the output signal controls the electromagnetic proportional valve (5) at the optimum opening degree, and then acco...

Claims

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Application Information

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IPC IPC(8): F24H1/00F24H9/20
Inventor 朱殿臣
Owner 朱殿臣
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