CN202866908U

CN202866908U - Cylinder interlayer heating device

Info

Publication number: CN202866908U
Application number: CN 201220515207
Authority: CN
Inventors: 周波; 高海雁; 邬忠义
Original assignee: XINZHOU GUANGYU COAL AND ELECTRICITY CO Ltd
Current assignee: XINZHOU GUANGYU COAL AND ELECTRICITY CO Ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-04-10
Anticipated expiration: 2022-09-29

Abstract

The utility model provides a cylinder interlayer heating device, and belongs to the technical field of steamship power generating equipment. The cylinder interlayer heating device aims to solves problems that a horizontally arranged pipe of a generating unit steam supply pipe is prone to hold water and temperature difference between an upper cylinder and a lower cylinder of a high pressure cylinder can not be controlled. The cylinder interlayer heating device comprises an interlayer heating header, a header safety valve, an air inlet pipe, a lower high pressure cylinder air feeding pipe arranged between the interlayer heating header and the lower cylinder of the high pressure cylinder and an interlayer heating header dewatering pipe arranged at the lower part of the interlayer heating header. The cylinder interlayer heating device is characterized by further comprising an upper high pressure cylinder air inlet pipe and a dewatering pipe of a lower high pressure cylinder air inlet pipe, the upper high pressure cylinder air inlet pipe is arranged between the interlayer heating header and the upper cylinder of the high pressure cylinder, and the dewatering pipe of the lower high pressure cylinder air inlet pipe is communicated with the lower part of a lower high pressure cylinder air inlet pipe.

Description

The cylinder interlayer heating equipment

Technical field

The utility model belongs to steamer power generating equipment technical field, is specifically related to the cylinder interlayer heating equipment.

Background technique

In the prior art Turbo-generator Set interlayer heating equipment paramount depress cylinder the two-way steam supply pipe be designed with the pipe of walking about horizontal 10m, easy ponding in the unit operation, ponding entered steam turbine after unit was beaten gate stop-start, temperature difference of the cylinder is large up and down to cause steam turbine.The unit prior art has only designed cylinder two-way steam supply pipe under the high-pressure cylinder in addition, make unit when startup rises parameter, not only can't regulate high-pressure cylinder upper cylinder half temperature, strengthened on the contrary the up and down temperature difference of cylinder of high-pressure cylinder, temperature difference of the cylinder is large up and down for high-pressure cylinder when causing startup, shafting vibration and unit tape splicing load speed when affecting red switch.Because in the actual motion, unit starting is to the temperature difference of the cylinder requirement is stricter up and down, so temperature difference of the cylinder is greatly the principal element of restriction unit starting time about the high-pressure cylinder.

Summary of the invention

The utility model provides a kind of novel cylinder interlayer heating equipment mainly for the problem that prior art exists.

The utility model is to solve the problems of the technologies described above the technological scheme of taking to be:

The cylinder interlayer heating equipment, the interlayer that comprises cylinder steam line under interlayer heating header, header safety valve, admission pipeline, the high-pressure cylinder under interlayer heating header and high-pressure cylinder between the cylinder and be positioned at interlayer heating header bottom heats the header drain water piping, it is characterized in that: also comprise high-pressure cylinder upper cylinder half admission pipeline and lower cylinder steam inlet pipe drain water piping; Described high-pressure cylinder upper cylinder half admission pipeline is between interlayer heating header and high-pressure cylinder upper cylinder half; Described lower cylinder steam inlet pipe drain water piping and lower cylinder admission pipeline lower UNICOM.

The utility model compared with prior art has following beneficial effect:

1, the utility model is controlled at zone of reasonableness with temperature difference of the cylinder about the high-pressure cylinder easily when unit starting, creates conditions for unit rises parameter tape splicing load on request;

2, lower cylinder steam inlet pipe drain water piping of the present utility model has been avoided time cylinder steam inlet pipe easy ponding in unit operation, after causing occurring after the chaser or making lock under the high-pressure cylinder cylinder temperature fall sharply and phenomenon that unit can't start.

Description of drawings

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

Among the figure: 1-high-pressure cylinder upper cylinder half steam line; 2-high-pressure cylinder upper cylinder half; Cylinder under 3-high-pressure cylinder; Cylinder steam line under 4-high-pressure cylinder; Cylinder steam supply pipe drain water piping under 5-high-pressure cylinder; 6-interlayer heating header; 7-header safety valve; 8-admission pipeline.

Embodiment

As shown in Figure 1, the cylinder interlayer heating equipment, the interlayer that comprises cylinder steam line 4 under interlayer heating header 6, header safety valve 7, admission pipeline 8, the high-pressure cylinder under interlayer heating header 6 and high-pressure cylinder between the cylinder 3 and be positioned at interlayer heating header 6 bottoms heats the header drain water piping, is characterized in: also comprise high-pressure cylinder upper cylinder half admission pipeline 1 and lower cylinder steam inlet pipe drain water piping 5; Described high-pressure cylinder upper cylinder half admission pipeline 1 is between interlayer heating header 6 and high-pressure cylinder upper cylinder half 2; Cylinder steam line 4 lower UNICOMs under described lower cylinder steam inlet pipe drain water piping 5 and the high-pressure cylinder.

Using method and working principle:

When the utility model uses, open lower cylinder steam inlet pipe drain water piping 5 ponding in the cylinder steam line 4 under the high-pressure cylinder is bled off; Before beginning to start, main steam enters interlayer heating header 6 by admission pipeline 8, steam is by the steam supply in high-pressure cylinder upper cylinder half and the lower cylinder interlayer of cylinder steam line 4 under high-pressure cylinder upper cylinder half admission pipeline 1 and the high-pressure cylinder, but make high-pressure cylinder up and down cylinder interlayer temperature difference manual control in rational scope.

Claims

1. cylinder interlayer heating equipment, comprise interlayer heating header (6), header safety valve (7), admission pipeline (8), be positioned under interlayer heating header (6) and the high-pressure cylinder cylinder steam line (4) under the high-pressure cylinder between the cylinder (3) and be positioned at the interlayer that interlayer heats header (6) bottom and heat the header drain water piping, it is characterized in that: also comprise high-pressure cylinder upper cylinder half admission pipeline (1) and lower cylinder steam inlet pipe drain water piping (5); Described high-pressure cylinder upper cylinder half admission pipeline (1) is positioned between interlayer heating header (6) and the high-pressure cylinder upper cylinder half (2); Cylinder steam line (4) lower UNICOM under described lower cylinder steam inlet pipe drain water piping (5) and the high-pressure cylinder.