CN101956968A

CN101956968A - Tower-type solar natural circulation receiver

Info

Publication number: CN101956968A
Application number: CN 201010297979
Authority: CN
Inventors: 黄德中
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2010-09-27
Filing date: 2010-09-27
Publication date: 2011-01-26
Anticipated expiration: 2030-09-27
Also published as: CN101956968B

Abstract

The invention discloses a tower-type solar natural circulation receiver which comprises a steam drum, a water inlet pipe, a steam outlet pipe, an upper steam-returning pipe, a lower water outlet header, a high-pressure vacuum solar heat collecting pipe and a base, wherein one end of the water inlet pipe is arranged into a place below 1/2 of the steam drum in depth, the steam outlet pipe is arranged at the top of the steam drum, the side surface of the steam drum is provided with the upper steam-returning pipe which is connected with one end of the high-pressure vacuum solar heat collecting pipe, the other end of the high-pressure vacuum solar heat collecting pipe is connected with the lower water outlet header; the lower water outlet header is communicated with the bottom of the steam drum; and the lower water outlet header is arranged on the base. The invention has the characteristics of reasonable design, wide application range, high energy resource utilization rate and low cost.

Description

Tower type solar Natural Circulation receiver

Technical field

The present invention relates to a kind of tower type solar Natural Circulation receiver, be used in the occasion of tower type solar generating.

Background technology

At present, oil, coal reserves are limited, and rise in price is the CO that fuel combustion produces with oil coal ₂, SO ₂Environment is produced very big harm, danger utmost point human existence.Utilize solar electrical energy generation, consumes energy does not have toxic emission, has development potentiality and application prospect.The tower type solar generated output is big, good reliability, generating efficiency height.In tower-type solar thermal power generating system, be that solar receiver is realized the most key core technology of tower type solar energy thermal power generation, the solar energy that it is caught heliostat, reflect, focus on is converted into the high temperature heat that can efficiently utilize, for generating set provides required thermal source or power source, thus the process of realization solar energy thermal-power-generating.At present, many countries invest in succession to this Study on Technology, and starting Europe, the United States and state such as Israel early technically obtained important breakthrough at this.

Summary of the invention

The object of the present invention is to provide a kind of tower type solar Natural Circulation receiver, the present invention has reasonable in design, and is applied widely, energy utilization rate height, the characteristics that cost is low.

In order to reach above-mentioned purpose, solution of the present invention is:

A kind of tower type solar Natural Circulation receiver comprises that drum, water inlet pipe, steam go out pipe, go up return tube, go out water manifold, high pressure vacuum solar energy heat collection pipe and base down; 1 the end of wherein intaking is fit into below 1/2nd degree of depth of drum, and steam goes out pipe and is installed in the drum top; The side of drum is equipped with return tube, and last return tube links to each other with an end of high pressure vacuum solar energy heat collection pipe, the other end of high pressure vacuum solar energy heat collection pipe with under go out water manifold and link to each other; Under go out water manifold and drum bottom and be communicated with; And under go out water manifold and be installed on the base.

Described drum is wrapped with adiabatic asbestos housing.

Described high pressure vacuum solar energy heat collection pipe is that glass is made; Water inlet pipe and steam go out pipe and last return tube is a metal tube.

Beneficial effect of the present invention is: utilization of the present invention be positioned at the receiver center drum dress water under go out water manifold and flow to the high pressure vacuum solar energy heat collection pipe, in the high pressure vacuum solar energy heat collection pipe, the high heat flux radiant energy that the heliostat systematic reflection comes, be translated into the high temperature heat of water, the water heating evaporation is a high temperature and high pressure steam, steam to drum the first half, produces high pressure superheated steam from last return tube, is stored in the drum.Go out let off steam steam turbine pushing turbine generating of pipe from steam then, the general gas of steam turbine is got back to water inlet pipe through the cold doubtful water water pump pressure of cold doubtful device, finishes a working cycles.The advantage of receiver of the present invention is that it can be installed several high pressure vacuum solar energy heat collection pipes and receives sunshine from settled date mirroring in the 360 degree scopes around the tower, focusing around drum, helps the layout designs of heliostat Jing Chang and the extensive utilization of solar energy.Have reasonable in design, applied widely, energy utilization rate height, the characteristics that cost is low.

Description of drawings

Fig. 1 is the structural representation of tower type solar Natural Circulation vertical pipe type receiver of the present invention;

Fig. 2 is the structural representation of tower type solar Natural Circulation receiver of the present invention in the tower type solar electricity generation system.

The specific embodiment

Embodiment 1

A kind of tower type solar Natural Circulation receiver comprises that drum 3, water inlet pipe 1, steam go out pipe 2, go up return tube 4, go out water manifold 6, high pressure vacuum solar energy heat collection pipe 5 and base 7 down; Wherein an end of water inlet pipe 1 is fit into below 1/2nd degree of depth of drum 3, and steam goes out pipe 2 and is installed in drum 3 tops; The side of drum 3 is equipped with return tube 4, and last return tube 4 links to each other with an end of high pressure vacuum solar energy heat collection pipe 5, the other end of high pressure vacuum solar energy heat collection pipe 5 with under go out water manifold 6 and link to each other; Under go out water manifold 6 and be communicated with drum 3 bottoms; And under go out water manifold 6 and be installed on the base 7.Described drum 3 is wrapped with adiabatic asbestos housing 8.Described high pressure vacuum solar energy heat collection pipe 4 is made for glass; Water inlet pipe 1 and steam go out pipe 2 and last return tube 4 is metal tube.

Tower type solar Natural Circulation receiver is in the tower type solar electricity generation system, as shown in Figure 2, in the middle of the receiver is a ball-type drum 3, insulated case 8 is wrapped up with asbestos in the outside, interior half water of dress, be the high pressure vacuum solar energy heat collection pipe 5 that is densely covered with cross dip by some all around, form a square conic tube, the pipe outer wall is coated with high temperature resistant absorber coatings, focus on the hot spot direct irradiation of formation at high pressure vacuum solar energy heat collection pipe 5 outer walls by heliostat system around the tower body 9, make high pressure vacuum solar energy heat collection pipe 5 wall temperatures raise with radiation mode, with the water heating evaporation, in the drum 3 water of dress under go out water manifold 6 to high pressure vacuum solar energy heat collection pipe 5, in high pressure vacuum solar energy heat collection pipe 5, the high heat flux radiant energy that the heliostat systematic reflection comes, and be translated into the high temperature heat of water, the water heating evaporation is that high temperature and high pressure steam steam flows to drum the first half from high pressure vacuum solar energy heat collection pipe 5 behind last return tube 4, draw into Natural Circulation, the high pressure superheated steam that produces is stored in the drum 3.Go out pipe 2 steam that come out to 11 generatings of steam turbine 10 pushing turbines from steam, the general gas of steam turbine is got back to water inlet pipe 1 through cold doubtful device 12 cold doubtful water water pump pressures, finishes a working cycles.

Claims

1. a tower type solar Natural Circulation receiver is characterized in that: comprise that drum (3), water inlet pipe (1), steam go out pipe (2), go up return tube (4), go out water manifold (6), high pressure vacuum solar energy heat collection pipe (5) and base (7) down; Wherein an end of water inlet pipe (1) is fit into below 1/2nd degree of depth of drum (3), and steam goes out pipe (2) and is installed in drum (3) top; The side of drum (3) is equipped with return tube (4), and last return tube (4) links to each other with an end of high pressure vacuum solar energy heat collection pipe (5), the other end of high pressure vacuum solar energy heat collection pipe (5) with under go out water manifold (6) and link to each other; Under go out water manifold (6) and drum (3) bottom and be communicated with; And under go out water manifold (6) and be installed on the base (7).

2. a kind of tower type solar Natural Circulation receiver as claimed in claim 1, it is characterized in that: described drum (3) is wrapped with adiabatic asbestos housing (8).

3. a kind of tower type solar Natural Circulation receiver as claimed in claim 1, it is characterized in that: described high pressure vacuum solar energy heat collection pipe (4) is made for glass; Water inlet pipe (1) and steam go out pipe (2) and last return tube (4) is a metal tube.