Gas collection system of circulating hot water boiler

Abstract

The utility model relates to the technical field of hot water boilers, in particular to a gas collection system of a circulating hot water boiler, which can timely discharge gas, reduce instability caused by regular operation of an exhaust valve by operators and ensure safe operation of boiler equipment, and comprises a gas collection tank body. The gas collecting tank body is connected with a hot water boiler through a gas-water access pipe, an overflow port is formed in the upper part of one side wall of the gas collecting tank body, an overflow pipe is mounted on the upper part of one side wall of the gas collecting tank body, an exhaust port is formed in the top of the gas collecting tank body, an exhaust pipe is mounted on the top of the gas collecting tank body, and an electric exhaust valve is mounted on the exhaust pipe. A liquid phase opening and a gas phase opening are respectively formed in the other side wall and the top of the gas collection tank body, the liquid phase opening and the gas phase opening are respectively connected with two ends of an electric contact water level gauge, and the electric contact water level gauge is connected with an alarm module.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot water boiler technical field, concretely is a kind of gas collection system of circulating hot water boiler. BACKGROUND

[0002] Forced circulation hot water boiler provides power by circulating pump to heat boiler circulating water, and removes the heat of boiler circulating water by closed heat network cooling water and provides for heat user.Hot water boiler needs to maintain stable constant pressure operation to ensure that boiler circulating water is within the safe margin below vaporization temperature.

[0003] Gas is usually dissolved in hot water boiler, which is released after the temperature of boiler rises.Gas is often brought into boiler circulating water system in boiler make-up water.In addition, when boiler operating condition changes, boiler circulating water may also vaporize and then condense when meeting cold water again.Because gas has large expansion and compressibility, the gas in the above-mentioned boiler circulating water can affect the instability of hot water boiler system operation.

[0004] Gas collection device is a device for collecting and removing the gas released in boiler circulating water system, which is usually arranged at the top of hot water boiler operating in full water or the highest point of hot water pipeline.When gas collection device cannot timely and effectively remove the gas in boiler water system, it may cause corrosion of boiler heating surface, and even gas plug, which affects the safe operation of boiler equipment.In the past hot water boiler project, the exhaust operation of gas collection device is usually operated by operating personnel according to experience, and the real working condition of gas storage degree in gas collection device is not clear, which has instability and certain safety hazard. SUMMARY

[0005] In order to solve the above technical problems, the utility model provides a kind of gas collection system of circulating hot water boiler, it can discharge gas in time, reduce the instability caused by regular operation of exhaust valve by operating personnel, and ensure the safe operation of boiler equipment.

[0006] The technical scheme is as follows: a kind of gas collection system of circulating hot water boiler, it includes gas collection tank body, its characterized in that, the gas collection tank body is connected hot water boiler by gas-water access pipe, overflow port is set up on the upper portion of the side wall of the gas collection tank body and is installed with overflow pipe, exhaust port is set up on the top of the gas collection tank body and is installed with exhaust pipe, electric exhaust valve is installed on the exhaust pipe, liquid phase port and gas phase port are respectively set up on the other side wall and top of the gas collection tank body, the two ends of electric contact water level meter are connected with the liquid phase port and the gas phase port respectively, the electric contact water level meter is connected with alarm module.

[0007] Further characterized in that, the electric contact water level meter is also connected with water level display screen;

[0008] The overflow pipe is connected to the expansion vessel and is provided with a control valve.

[0009] After the utility model is used, the electric contact water level meter is increased on the gas collecting tank body, gas is sensed by the electric contact water level meter, and the alarm module can be used to send an exhaust alarm to remind the staff to timely open the electric exhaust valve for exhaust, so that the instability factor caused by the experience-based timing operation is avoided, and the safe operation of the boiler equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model discloses a schematic diagram. DETAILED DESCRIPTION

[0011] As shown in Figure 1 A gas collecting system of circulating hot water boiler, it includes gas collecting tank body 1, gas collecting tank body 1 is connected hot water boiler 3 through gas water access pipe 2, overflow port is set up on the upper portion of the side wall of gas collecting tank body 1 and is provided with overflow pipe 4, overflow pipe is connected to expansion vessel and is provided with control valve 5, exhaust port is set up on the top of gas collecting tank body 1 and is provided with exhaust pipe 6, electric exhaust valve 7 is installed on exhaust pipe 6, liquid phase port and gas phase port are set up on the other side wall and top of gas collecting tank body 1 respectively, liquid phase port and gas phase port are connected two ends of electric contact water level meter 8 respectively, electric contact water level meter 8 is connected alarm module 9 and water level display screen 10.

[0012] Hot water boiler 3 should be full water state in theory under the starting and running condition, and gas collecting tank body 1 set in the highest point of boiler should also be full water state. The gas produced in hot water boiler system due to various reasons under the starting and running is accumulated in the upper portion of gas collecting tank body 1 after gathering into gas collecting tank body 1 through the highest point of boiler due to the small density, when the gas storage reaches a certain height, the electrode point of the upper portion of electric contact water level meter 8 is in the gas space, the resistance value different from normal water medium is sensed, then is transmitted to alarm module 9 and water level display screen 10, the display decoding circuit in water level display screen 10 can display the real-time gas-water interface position after processing, when the resistance value sensed exists difference compared with the set value, the alarm can be realized by using the buzzer of alarm module 9 and other common alarm components, reminding that the gas storage amount in gas collecting tank body 1 has reached the discharge requirement, and the staff can timely open the electric exhaust valve for exhaust. In the subsequent upgrading of the system, simple single-chip microcomputer control can also be added, when the gas reaches the discharge condition, the single-chip microcomputer is used to control the exhaust operation of electric exhaust valve 7, and the manual intervention factor is reduced.

Claims

1. A gas collecting system of a circulating hot water boiler comprising a gas collecting tank body, characterized in that, The gas collecting tank body is connected with the hot water boiler through a gas-water access pipe, a water overflow port is formed in the upper part of one side wall of the gas collecting tank body and a water overflow pipe is installed, a gas discharge port is formed in the top of the gas collecting tank body and a gas discharge pipe is installed, an electric gas discharge valve is installed on the gas discharge pipe, a liquid phase port and a gas phase port are respectively formed in the other side wall and the top of the gas collecting tank body, the liquid phase port and the gas phase port are respectively connected with two ends of an electric contact water level gauge, and the electric contact water level gauge is connected with an alarm module.

2. A gas collecting system of a circulating hot water boiler according to claim 1, characterized in that The electric contact water level gauge is also connected with a water level display screen.

3. A gas collecting system of a circulating hot water boiler according to claim 1, characterized in that The water overflow pipe is connected with an expansion vessel and is installed with a control valve.

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