CN205077014U - Gas stove steam buffer tank energy recuperation device - Google Patents

Abstract

The utility model discloses an energy recovery device for a steam buffer tank of a gas furnace, which comprises a temperature reducing and pressure reducing device, a separator, an energy recovery mechanism, a steam buffer tank and a gas generator sequentially connected through pipelines, and the energy recovery mechanism includes a steam turbine , the rotating shaft of the steam turbine is connected with a blower, and the blower is connected with the motor. The utility model is provided with an energy recovery mechanism composed of a steam turbine, a blower and a motor between the separator and the steam buffer tank. When the steam passes through the steam turbine, the steam turbine is driven to rotate and the blower is driven to rotate, thereby effectively saving the electric energy consumption of the motor and satisfying the manufacturing requirements. The steam requirements of the gas furnace process can be saved, and the power consumption can be reduced, and the utilization rate of steam energy can be improved.

Description

A gas furnace steam buffer tank energy recovery device

technical field

The utility model relates to the technical field of synthetic ammonia chemical industry, in particular to an energy recovery device for a gas furnace steam buffer tank.

Background technique

At present, in the process of intermittent coal gasification in the field of synthetic ammonia chemical technology, the pressure of the low-pressure steam entering the gas-making section is 0.4-0.6MPa, and after being decompressed by the steam regulating valve to 0.08-0.10MPa, it enters the steam buffer tank of the gas furnace for production Gas furnace gas use. Because the initial pressure of low-pressure steam is 0.4-0.6MPa, the pressure before entering the steam buffer tank is 0.08-0.1MPa, that is, the pressure of 0.3-0.5MPa is lost in vain on the decompression of the steam regulating valve before entering the steam buffer tank, resulting in The loss of a large amount of energy is equivalent to the loss of about 800-1000 kilowatt-hours of electricity per hour (for an annual production of 300,000 tons of synthetic ammonia). In order to meet the call for energy conservation and emission reduction, further energy conservation and consumption reduction, this part needs to be recycled The energy loss of the blower motor is saved, but there is no special device or equipment to complete the recovery of the lost energy.

Utility model content

The utility model aims to provide an energy recovery device for a gas furnace steam buffer tank to solve the problems of serious pressure energy loss and unrecoverable and high power consumption of fans during the intermittent coal gasification gas production process.

The utility model is achieved through the following technical solutions:

An energy recovery device for a steam buffer tank of a gas furnace, comprising a temperature and pressure reducer, a separator, an energy recovery mechanism, a steam buffer tank and a gas generator connected in sequence through pipelines, the temperature and pressure reducer and the separator The pipeline is provided with a steam secondary line pipe, and an automatic regulating valve is installed on the steam secondary line pipe. The two ends of the automatic regulating valve are respectively provided with a valve A and a valve B. The downstream of the valve B is connected to the steam buffer tank through a pipeline; the steam The upstream and downstream of the buffer tank are respectively provided with an inlet valve B and an outlet valve B;

The energy recovery mechanism includes a steam turbine, a blower is connected to the rotating shaft of the steam turbine, and the blower is connected to a motor; it also includes a control cabinet connected to the steam turbine, and an inlet valve A and an outlet valve A are respectively arranged at both ends of the steam turbine.

The beneficial effects of the utility model are:

Compared with the prior art, the gas furnace steam buffer tank energy recovery device provided by the utility model is provided with an energy recovery mechanism composed of a steam turbine, a blower and a motor between the separator and the steam buffer tank, and drives the steam turbine to rotate when the steam passes through the steam turbine And drive the blower to rotate, thereby effectively saving the power consumption of the motor, which can meet the steam requirements of the gas-making furnace process, save and reduce power consumption, and improve the utilization rate of steam energy. Moreover, the device has a high degree of automation, is easy to operate, and has an ideal use effect, and can be widely popularized and applied in the technical field of chemical production.

Description of drawings

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

In the figure: 1-Separator, 2-Inlet valve A, 3-Turbine, 4-Outlet valve A, 5-Blower, 6-Motor, 7-Control cabinet, 8-Desuperheater, 9-Valve A, 10-Automatic regulating valve, 11-Valve B, 12-Steam buffer tank, 13-Inlet valve B, 14-Exit valve B, 15-Gas generator, 16-Steam auxiliary line pipe.

detailed description

Below in conjunction with accompanying drawing, the technical scheme of the present utility model will be further described, but the required protection scope is not limited to the description;

As shown in Figure 1, the gas furnace steam buffer tank energy recovery device provided by the utility model includes a temperature and pressure reducer 8, a separator 1, an energy recovery mechanism, a steam buffer tank 12 and a gas generator 15 connected in sequence through pipelines , the pipeline between the temperature and pressure reducer 8 and the separator 1 is provided with a steam auxiliary line pipe 16, and an automatic regulating valve 10 is installed on the steam auxiliary line pipe 16, and valves are respectively arranged at both ends of the automatic regulating valve 10 A9 and valve B11, the downstream of the valve B11 is connected to the steam buffer tank 12 through a pipeline; the upstream and downstream of the steam buffer tank 12 are respectively provided with an inlet valve B13 and an outlet valve B14;

The energy recovery mechanism includes a steam turbine 3, the rotating shaft of the steam turbine 3 is connected with a blower 5, and the blower 5 is connected with the motor 6; it also includes a control cabinet 7 connected with the steam turbine 3, and the two ends of the steam turbine 3 are respectively provided with an inlet valve A2 and an outlet valve A4 .

The utility model uses the 0.4-0.6MPa pressure low-pressure steam before entering the steam buffer tank 12, and first passes through the temperature and pressure reducer 8 for cooling and pressure reduction treatment. If the steam pressure is lower than 0.08MPa, the steam directly passes through the steam auxiliary line pipe 16 enters the automatic regulating valve 10 for pressure regulation, and then enters the steam buffer tank 12 for gas production after pressure regulation;

When the steam pressure is 0.4-0.6MPa, after the steam is processed by the separator 1, the steam first enters the steam turbine 3 and drives the steam turbine 3 to work, and the steam turbine 3 drives the blower 5 to rotate to complete the transportation of the steam. Load, that is, can reduce the energy consumption of the motor 6, the 0.08-0.10MPa low-pressure steam from the steam turbine 3 enters the steam buffer tank 12, and then enters the gas generator 15 for use.

Claims (1)

1. A gas furnace steam buffer tank energy recovery device is characterized in that: comprise a temperature and pressure reducer (8), separator (1), energy recovery mechanism, steam buffer tank (12) and manufacturing A gas furnace (15), the pipeline between the desuperheater (8) and the separator (1) is provided with a steam auxiliary line pipe (16), and an automatic regulating valve is installed on the steam auxiliary line pipe (16) (10), the two ends of the automatic regulating valve (10) are respectively provided with a valve A (9) and a valve B (11), and the downstream of the valve B (11) is connected to the steam buffer tank (12) through a pipeline; the steam buffer tank (12) An inlet valve B (13) and an outlet valve B (14) are respectively arranged upstream and downstream; The energy recovery mechanism includes a steam turbine (3), a blower (5) is connected to the rotating shaft of the steam turbine (3), and the blower (5) is connected to the motor (6); it also includes a control cabinet (7) connected to the steam turbine (3), The two ends of the steam turbine (3) are respectively provided with an inlet valve A (2) and an outlet valve A (4).