Anti-low-temperature boiler system

A low-temperature prevention and boiler technology, applied in preheating, supplementary feed water, steam generation, etc., can solve problems that threaten the safe operation of gas-fired hot water boilers, corrosion of tube plates, smoke pipes and chimneys, and low return water temperature of hot water boilers, etc. To achieve the effect of ensuring the normal design life, avoiding corrosion and preventing condensation

Inactive Publication Date: 2019-06-07
HEZE BOILER FACTORY
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  • Claims
  • Application Information

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Problems solved by technology

This is because the return water temperature of the hot water boiler is low, and the water vapor in the flue gas will condense when it hits the low-temperature heating surface, causing the condensed water to leak outward.
The condensed water produced by condensation is acidic, which will seriously corrode the tube plate, smoke pipe and chimney, and threaten the safe operation of the gas-fired hot water boiler. Therefore, measures need to be taken to prevent the boiler from generating low temperature and protect the safe operation of the boiler

Method used

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Embodiment Construction

[0008] The technical solution of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

[0009] In the technical solution of the present invention, the peripheral part of the boiler includes the outlet pipe of the boiler, the inlet pipe and the bypass pipe connected between the outlet pipe and the inlet pipe, and a temperature sensor 2 is arranged at the return water inlet of the boiler 1, and the temperature sensor 2 is mainly used to detect the return water temperature, the temperature detected by the temperature sensor 2 will be fed back to the controller, and the controller can control the opening and closing of the electric induction valve 4 according to the set temperature. If the water dew point in the flue gas is known to be 56-60°C according to the partial pressure coefficient of water vapor, then the return water temperature should be controlled above 60°C to prevent condensation o...

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Abstract

The invention discloses an anti-low-temperature boiler system. The anti-low-temperature boiler system comprises a boiler body as well as a water outlet pipe and a water inlet pipe which are connectedto the boiler body, wherein a temperature sensor is arranged at an inlet of the water inlet pipe of a boiler; a circulation water pump is arranged on a water inlet pipeline; a bypass pipe is arrangedbetween the water inlet pipe and the water outlet pipe; an electric induction valve is arranged on the bypass pipe; the temperature sensor, the electric induction valve and the circulation water pumpare connected with a controller; and induction valves are arranged on the water outlet pipe, the water inlet pipe and the bypass pipe. The anti-low-temperature boiler system is capable of effectivelyprotecting a pipeline, a flue and the like in the boiler from being corroded by acidic condensed water, and prolonging the service life of the boiler.

Description

technical field [0001] The invention belongs to the technical field of boiler equipment, in particular to an anti-low temperature boiler system. Background technique [0002] When the return water temperature of the gas-fired hot water boiler is low, water often flows out from the boiler. The place where the water flows is generally at the smoke box of the shell boiler or the convective heating surface of the water tube boiler, and the smoke outlet has Obviously water vapor, this is not the leakage of the pressure parts of the boiler body, this phenomenon of water flow will stop after the boiler is stopped. This is because the return water temperature of the hot water boiler is low, and the water vapor in the flue gas will condense when it hits the low-temperature heating surface, causing the condensed water to leak outward. The condensed water produced by condensation is acidic, which will seriously corrode the tube plate, smoke pipe, and chimney, and threaten the safe ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D11/00
Inventor 张春雨
Owner HEZE BOILER FACTORY
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