CN206986862U - Hydroelectric engineering pipeline under pressure hole group arrangement structure - Google Patents

Abstract

The utility model provides a water electrical engineering pipeline under pressure hole crowd arrangement structure, including the water inlet that connects gradually the setting, go up flat section pipeline under pressure, shaft section, flat section pipeline under pressure and the factory building of generating electricity, go up flat section pipeline under pressure, shaft section and flat section pipeline under pressure and be provided with at least two sets ofly altogether, go up each pipeline under pressure of flat section and all the same separately, and the length sum of the last flat section pipeline under pressure of every group is the same with flat section pipeline under pressure. The problems that in arrangement of a shoreside type hydropower station pressure pipeline cavern group, all upper flat sections and all lower flat sections are sequentially connected in a plane arrangement mode in sequence, economy is poor, and field construction and later-stage operation management are inconvenient are solved. The utility model belongs to hydraulic and hydroelectric engineering field.

Description

A kind of hydroelectric project pressure pipeline cavity group arrangement

Technical field

A kind of pressure pipeline cavity group arrangement is the utility model is related to, belongs to Hydraulic and Hydro-Power Engineering technical field.

Background technology

Power station is that barrage is built a dam on river course, raises upper pond level, using the water-head of dam upstream and downstream, and by drawing Water system（It is made up of pressure pipeline）The turbine-generator units that water is led in power plant building, finally water can be converted to electric energy Integration engineering facility.The power plant building in shore type power station is usually placed in dam downstream nearby, wherein, diversion system hole Room group arrangement should determine according to landform geological conditions and project general arrangement requirement etc. are comprehensive, when diversion system is supplied water using unit During mode, each flat section, lower flat section are attached by conventional horizontal layout mode successively in order, as described in Figure 2.

Practice have shown that there is problems with conventional pressure pipeline cavity group arrangement：First, according to elevation computation Achievement, the most long C diversion systems arrangement of circuit may set upstream surge-chamber or increase pressure pipeline diameter side It can meet to require, so as to cause total investment of engineering to increase, the most short A diversion system arrangements of circuit are also uneconomical；Secondly, It should meet that C diversion systems arrangement is not provided with upstream surge-chamber, ensure the economy of A diversion systems arrangement again, it will Cause pressure pipeline diameter different, site operation is very inconvenient；Finally, from the aspect of being run from power station, three length are different The loss of flood peak of pressure pipeline has certain difference, and the head to be generated electricity using upstream and downstream water-head is also inevitable different, for Three type selecting identical hydrogenerators, the output of every unit, electricity and repair and maintenance frequency are also different, therefore later stage operation pipe Reason is also very inconvenient.

As can be seen here, will using the horizontal layout mode of routine in shore type hydropower station pressure pipeline cavity group arrangement Each flat section, lower flat section are attached successively in order, and there is less economical, site operation and later stage operational management inconvenience etc. Shortcoming.

The content of the invention

The purpose of this utility model is：A kind of hydroelectric project pressure pipeline cavity group arrangement is provided, to solve bank In side formula hydropower station pressure pipeline cavity group arrangement, using existing horizontal layout mode by each flat section, lower flat section in order according to It is secondary to be attached, the problem of there is the shortcomings of less economical, site operation and later stage operational management inconvenience.

To solve the above problems, intend using such a hydroelectric project pressure pipeline cavity group arrangement, including successively Connect water inlet, upper flat section pressure pipeline, vertical shaft section, lower flat section pressure pipeline and the power plant building set, upper flat section pressure pipe Road, vertical shaft section and lower flat section pressure pipeline are provided with least two groups altogether, upper flat each pressure pipeline of section and lower each pressure pipeline of flat section Pipe diameter it is each identical, and the length sum all same of every group of upper flat section pressure pipeline and lower flat section pressure pipeline.

In aforementioned arrangement structure, upper flat section pressure pipeline, vertical shaft section and lower flat section pressure pipeline share three groups, wrap respectively Include：Flat section pressure pipeline, second be sequentially connected under flat section pressure pipeline, the first vertical shaft section and first on first be sequentially connected Flat section pressure pipeline under upper flat section pressure pipeline, the second vertical shaft section and second, flat section pressure pipeline on the 3rd be sequentially connected, the Flat section pressure pipeline under three vertical shaft sections and the 3rd, flat section pressure pipeline on first, put down on second on flat section pressure pipeline and the 3rd The length of section pressure pipeline is sequentially reduced, flat section pressure under flat section pressure pipeline and the 3rd under flat section pressure pipeline, second under first The length of hydraulic piping increases successively, and the amount of being sequentially reduced of upper flat section pressure pipeline length and lower flat section pressure pipeline length according to Secondary increase is identical.

Compared with prior art, the utility model to the shore type hydropower station pressure pipeline cavity group of routine by arranging knot Structure is adjusted, and upper flat section is most long（It is short）Pressure pipeline and lower flat section are most short（It is long）Pressure pipeline, which staggers, to be attached, each bar The total length of pressure pipeline is identical, and the loss of flood peak is also suitable, can avoid setting upstream surge-chamber or increase pressure pipeline diameter, Pressure pipeline diameter is identical, total investment of engineering is controlled favorably, site operation and later stage operational management are more convenient；It overcomes Conventional pressure pipeline cavity group arrangement there is the shortcomings of less economical, site operation and later stage operational management inconvenience, Can be in Hydraulic and Hydro-Power Engineering technical field wide popularization and application.

Brief description of the drawings

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

Fig. 2 is existing arrangement schematic diagram.

Embodiment

Embodiment：

Reference picture 1, the present embodiment provides a kind of hydroelectric project pressure pipeline cavity group arrangement, including is sequentially connected and sets Water inlet 1, upper flat section pressure pipeline 2, vertical shaft section 3, lower flat section pressure pipeline 4 and the power plant building 5 put, upper flat section pressure pipeline 2nd, vertical shaft section 3 and lower flat section pressure pipeline 4 share three groups, include respectively：Flat section pressure pipeline 21, on first be sequentially connected Flat section pressure pipeline 41 under one vertical shaft section 31 and first, flat section pressure pipeline 22, the second vertical shaft section 32 on second be sequentially connected With second under flat section pressure pipeline 42, flat section pressure pipeline 23, the 3rd vertical shaft section 33 and the three times are flat on the 3rd be sequentially connected Section pressure pipeline 43, flat section pressure pipeline 23 on flat section pressure pipeline 22 and the 3rd on flat section pressure pipeline 21, second on first Length be sequentially reduced, flat section pressure pipeline under flat section pressure pipeline 42 and the 3rd under flat section pressure pipeline 41, second under first 43 length increases successively, and the amount of being sequentially reduced of the upper flat length of section pressure pipeline 2 and the lower flat length of section pressure pipeline 4 are successively Increase is identical, that is, ensures every group of upper flat section pressure pipeline 2 and the length sum all same of lower flat section pressure pipeline 4, upper flat The pipe diameter all same of section pressure pipeline 2 and lower flat section pressure pipeline 4.

Claims (2)

1. a kind of hydroelectric project pressure pipeline cavity group arrangement, including it is sequentially connected the water inlet of setting, upper flat section pressure Pipeline, vertical shaft section, lower flat section pressure pipeline and power plant building, upper flat section pressure pipeline, vertical shaft section and lower flat section pressure pipeline are total to It is provided with least two groups, it is characterised in that：The pipe diameter of upper flat each pressure pipeline of section and lower each pressure pipeline of flat section is respective It is identical, and the length sum all same of every group of upper flat section pressure pipeline and lower flat section pressure pipeline.

A kind of 2. hydroelectric project pressure pipeline cavity group arrangement according to claim 1, it is characterised in that：Upper flat section pressure Hydraulic piping, vertical shaft section and lower flat section pressure pipeline share three groups, include respectively：Flat section pressure pipeline on first be sequentially connected, Flat section pressure pipeline under first vertical shaft section and first, flat section pressure pipeline, the second vertical shaft section and second on second be sequentially connected Flat section pressure pipeline down, flat section pressure pipeline under flat section pressure pipeline, the 3rd vertical shaft section and the 3rd on the 3rd be sequentially connected, Flat section pressure pipeline on one, the length of flat section pressure pipeline is sequentially reduced on flat section pressure pipeline and the 3rd on second, under first The length of flat section pressure pipeline increases successively under flat section pressure pipeline and the 3rd under flat section pressure pipeline, second, and upper flat section pressure The amount of being sequentially reduced of hydraulic piping length is identical with the increase successively of lower flat section pressure pipeline length.