CN204320102U - A kind of hot water circuit and the dual-purpose liquid ammonia gasifier of electrical heating - Google Patents

Abstract

The utility model relates to a kind of hot water circuit and the dual-purpose liquid ammonia gasifier of electrical heating, comprise gasifier shell, housing sidewall is separately installed with draining valve, hot water inlet, thermometer, hot water outlet, liquid level takes into account electrically heated rod, the heating part of electrically heated rod extends to enclosure interior, at the top of housing, liquefied ammonia conduit entrance is installed, the pipeline of liquefied ammonia import extends to enclosure interior, and after enclosure interior helical form is spiraled, pass housing formation ammonia pipe outlet, simultaneously, to be passed by case top with the blow-off line of liquid ammonia gasification pipeline communication and form sewage draining exit, liquefied ammonia inlet pipeline is equipped with Pressure gauge, ammonia outlet pipeline is equipped with Pressure gauge successively, thermometer, pressure transmitter, temperature transmitter and safe diffusion device.Water heating and electrical heating combine by the utility model device, and the condition that device is suitable for is more extensive, and liquid ammonia gasification is more rapid, efficiently.

Description

A dual-purpose liquid ammonia vaporizer for hot water circulation and electric heating

technical field

The utility model belongs to the technical field of a gasifier device of a denitrification system component device in a power plant, in particular to a liquid ammonia gasifier for hot water circulation and electric heating.

Background technique

In recent years, the country's environmental protection requirements have increased, and new projects in thermal power plants have been put forward to sell out of stock. Selective catalytic reduction (SCR) is a more commonly used denitrification method. Liquid ammonia gasifier has become one of the main equipment in SCR technology. There are two types of vaporizers currently used: pressure vessels and atmospheric pressure vessels. In the atmospheric pressure container, either the electric heating type liquid ammonia vaporizer is used, or the hot water type liquid ammonia vaporizer is used. Each type of liquid ammonia vaporizer has its own characteristics, but each has its own characteristics. limitations.

Contents of the invention

The purpose of the utility model is to propose a dual-purpose liquid ammonia vaporizer for hot water circulation and electric heating in view of the deficiencies in the prior art.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A liquefied ammonia gasifier for both hot water circulation and electric heating, including a gasifier shell, a drain valve connected to the inside of the shell, a hot water inlet, a Thermometer and hot water outlet, on the left side of the shell, a liquid level gauge is installed to detect the internal condition of the gasifier shell, and an electric heating rod is installed on the left side wall of the bottom of the shell, and the heating part of the electric heating rod extends to the shell Inside, a liquid ammonia pipeline inlet is installed on the top of the shell, and the pipeline of the liquid ammonia inlet extends to the inside of the shell, and passes through the shell after spiraling inside the shell, forming an ammonia gas pipeline outlet on the top of the shell, and at the same time , the sewage pipeline is connected to the liquid ammonia gasification pipeline at the bottom of the shell, the sewage pipeline passes through the top of the shell, and the sewage outlet is formed on the left side outside the shell, and a pressure gauge is installed on the liquid ammonia inlet pipeline. A pressure gauge, a thermometer, a pressure transmitter, a temperature transmitter and a safety release device are sequentially installed on the ammonia gas outlet pipeline.

Also, a temperature transmitter is mounted outside the top of the housing.

Moreover, a liquid level low limit switch is installed outside the top of the housing.

Moreover, a water injection port is further installed on the top outer side of the housing.

Advantage and positive effect of the present utility model are:

1. On the basis of the original water circulation or electric heating liquid ammonia gasifier, the utility model combines the two, and the device is applicable to a wider range of conditions. The water circulation or electric heating can be operated alone or together. The liquid ammonia gas become more rapid;

2. The utility model has the advantages of simple structure, convenient operation and management, flexible installation, resource saving and safety and reliability.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

The implementation of the utility model will be described in further detail below in conjunction with the accompanying drawings. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

A liquid ammonia gasifier for both hot water circulation and electric heating, as shown in Figure 1, includes a gasifier shell 15, and is respectively installed on the outside of the right side of the shell from bottom to top to communicate with the inside of the shell. Drain valve 14, hot water inlet 13, thermometer 12 and hot water outlet 11. Hot water is injected into the gasifier shell from the hot water inlet, and is discharged from the hot water outlet after forming a circulation in the shell. The liquid level gauge 17 for detecting the internal conditions of the gasifier shell is equipped with an electric heating rod 16 on the left side wall of the bottom of the shell, the heating part of the electric heating rod extends to the inside of the shell, and liquid ammonia is installed on the top of the shell Pipeline inlet 18, the pipeline of liquid ammonia inlet extends to the inside of the shell, and passes through the shell after spiraling inside the shell, forming an ammonia gas pipeline outlet 10 at the top of the shell, and at the same time, the liquid ammonia gas at the bottom of the shell The sewage pipeline is connected to the sewage pipeline, and the sewage pipeline passes through the top of the shell, and the sewage outlet 19 is formed on the left side outside the shell. A pressure gauge 1 for detecting the inlet condition is installed on the liquid ammonia inlet pipeline. A pressure gauge 5 , a thermometer 8 , a pressure transmitter 7 , a temperature transmitter 9 and a safety release device 6 are sequentially installed on the pipeline to detect the outlet status.

In the specific implementation of the utility model, a temperature transmitter 4 is installed outside the top of the housing.

In the specific implementation of the utility model, a liquid level lower limit switch 2 is also installed on the top outside of the housing.

In the specific implementation of the utility model, a water injection port 3 is further installed outside the top of the housing, and water is injected into the housing when electric heating is used.

working principle

When the gasifier device of the utility model is in operation, when hot water circulation gasification is required, the hot water is circulated in the gasifier box through the hot water inlet and the heat output port, and the liquid ammonia is soaked in the hot water through the liquid ammonia inlet. The coil in the water is gasified, and finally comes out from the ammonia outlet; when electric heating is required, the electric heating rod is energized to heat up the water in the tank, and the liquid ammonia is passed through the same method as above. After being vaporized, it is output to the downstream pipeline.

Claims (4)

1. A dual-purpose liquid ammonia gasifier for hot water circulation and electric heating, characterized in that: it includes a gasifier shell, and drains connected to the inside of the shell are respectively installed on the outside of the right side of the shell from bottom to top. valve, hot water inlet, thermometer and hot water outlet, a liquid level gauge is installed on the left side of the shell to detect the internal condition of the gasifier shell, and an electric heating rod is installed on the left side wall of the bottom of the shell. The heating part extends to the inside of the shell, and the inlet of the liquid ammonia pipeline is installed on the top of the shell. Ammonia gas pipeline outlet, at the same time, the sewage pipeline is connected to the liquid ammonia gasification pipeline at the bottom of the shell, the sewage pipeline passes through the top of the shell, and the sewage outlet is formed on the left side outside the shell, and the liquid ammonia inlet pipeline is installed with A pressure gauge, a pressure gauge, a thermometer, a pressure transmitter, a temperature transmitter and a safety release device are sequentially installed on the ammonia gas outlet pipeline. 2. The liquefied ammonia gasifier for both hot water circulation and electric heating according to claim 1, characterized in that a temperature transmitter is installed outside the top of the casing. 3. The liquefied ammonia gasifier for both hot water circulation and electric heating according to claim 1, characterized in that a liquid level lower limit switch is installed outside the top of the casing. 4. The liquefied ammonia vaporizer for both hot water circulation and electric heating according to claim 1, characterized in that: a water injection port is further installed on the outer top of the casing.