CN201000220Y

CN201000220Y - A new type of solar water heating engineering heat exchanger

Info

Publication number: CN201000220Y
Application number: CNU200620172669XU
Authority: CN
Inventors: 王家明
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-28
Filing date: 2006-12-28
Publication date: 2008-01-02
Anticipated expiration: 2016-12-28

Abstract

The utility model discloses a novel solar water heating engineering heat exchanger, which comprises a heat collection system, a heat preservation water storage system, an auxiliary heating system and an indoor water supply system. The heat collection system is composed of several heat collection units, and each heat collection unit The units are composed of headers, heat exchanger sleeves, double-layer solar vacuum tubes and tail boxes. The double-layer solar vacuum tubes are arranged side by side, and the bottom end is installed on the tail box. The heat exchange medium is injected into the inner tank of the header tank, and an insulation layer is provided between the shell of the header tank and the inner tank of the header tank. One is the return pipe, and the water inlet pipe and the return pipe of the first heat collection unit in the same row are connected with the hot water storage tank of the heat preservation water storage system, and the water inlet pipes and return pipes of the other heat collection units are respectively connected in turn, and at the end The final heat collecting unit is connected in circulation. It has the advantages of large light receiving area, high heat gain, small footprint, fast start-up speed, frost resistance, pressure bearing, simple installation, and few connecting pipes.

Description

A kind of novel solar water conservancy project pass heat exchanger

Technical field

The utility model relates to a kind of solar water heater, a kind of more precisely novel solar heating engineering heat exchanger.

Background technology

Present solar water heater mostly adopts AL-N/AL absorber coatings glass heat-collecting vacuum tube, this thermal-collecting tube absorptivity reaches more than 93%, every performance indications are very excellent, extensively should be in the domestic type solar water heater, can satisfy general domestic hot water's demand, but the domestic type solar water heater can not satisfy factory because of factors such as water yield small footprint size are big, the hotel, school, collectives such as hospital use the hot water demand, for satisfying the demand of collective unit's big yield hot water, the sunny energy of a lot of units Development and Production heat collecting module is (as Fig. 1, shown in Figure 2), being about to heat collector 1 separates with storage tank 2, the mode that adopts circulating pump 3 to carry out temperature difference circulation heats the water in the storage tank 2, but there is following shortcoming in this system: 1, because vacuum tube 4 directly inserts header 5 and seals by sealing ring, the contraction in length 100mm that is heated of single vacuum tube, complete machine is subjected to the sunlight that leaks on the wide area of halo bigger, because of adopting plug-in type, spacing is bigger between the tube and tube, generally about 22mm, so the single-bit module floor space is big, solar energy utilization ratio is low, and it is little to get heat; 2, because of whole internal circulation system combines as a whole, single vacuum tube damages, and whole system can not be moved, and influence is used; 3, field fabrication amount is big, and circulating line is longer, and system was easily freezing when environment temperature was low, needs to assist with ribbon heater etc. antifreeze.

The utility model content

At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of novel solar heating engineering heat exchanger.This heat exchanger have light-receiving area big, the heat height, floor space is little, toggle speed is fast, circulating line is short, installation is easy, pressure-bearing, advantage such as freeze proof.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of novel solar water conservancy project pass heat exchanger, comprise collecting system, the insulation water storage system, auxiliary heating system and indoor water supply system, described collecting system is made up of some thermal-arrests unit, each thermal-arrest unit is by header, heat exchange jackets, double-deck solar energy vacuum tube, heat transfer medium and tail box are formed, double-deck solar energy vacuum tube is arranged side by side, its bottom is installed on the tail box, the top is connected with the header inner bag by coupling device by interior pipe, be injected with heat transferring medium in the header inner bag, be provided with heat-insulation layer between header shell and the header inner bag, described heat exchange jackets is installed on the header, wherein one is oral siphon, another root is a return pipe, the first thermal-arrest unit oral siphon and return pipe with row are connected with the heat storage water tank of insulation water storage system, the oral siphon of all the other each thermal-arrest unit and return pipe are communicated with respectively successively, and circulation is communicated with in the most last thermal-arrest unit.

Be equipped with heat transferring medium inlet and exhaust outlet on the header of described thermal-arrest unit.

Described coupling device is a stainless steel tube, and heat exchange jackets is stainless steel tube, bellows or copper pipe.

Be to adopt the stainless steel tube connector to be connected between solar energy vacuum tube of the present utility model and the header, and vacuum tube employing tube-in-tube, this structure has following advantage:

1. single solar energy vacuum tube length of being heated can increase 100mm, and this segment length of traditional structure then is inserted in header inside;

2. the spacing of vacuum tube drops to 54mm (φ 47 * 1500) or drops to 65mm (φ 58 * 1800) from 80mm from 70mm and significantly reduces at the whole sunlight that missed by the wide area of halo, gets heat and exceeds 30% than common type;

3. floor space is little, and limited space, roof is maximized the use;

4. adopt tube-in-tube to reduce the inner capacities of system, system's toggle speed is accelerated.

Heat exchange jackets of the present utility model is stainless steel tube or bellows or the copper pipe of φ more than 25, and water and the water in the heat storage water tank in the pipe are a system, and system does not communicate with heat transferring medium, and its advantage is:

1. single glass heat collection tube fragmentation of system does not influence the operation of whole system, just local influence;

But be system's pressure-bearing of sealing 2., reach as high as 0.7Mpa because of heat pipe;

3. if medium system adopts antifreeze medium, system need not ℃ operation as usual of auxiliary antifreezing measures-30;

4. because of hot water circulates in pipe, connecting pipe is short, and the pipe insulation amount is little, and it is big that system gets heat;

5. the heat exchanger support can reduce the field fabrication amount by factory's typing making and shorten the duration;

But 6. because of system's pressure-bearing, design area can reach thousands of squares and be fit to large-scale hot water engineering.

Description of drawings

Fig. 1 is the structural representation of traditional solar heat exchanger thermal-arrest unit;

Fig. 2 is the overall structure schematic diagram of traditional solar heat exchanger;

Fig. 3 is the structural representation of thermal-arrest unit in the utility model;

Fig. 4 is an overall structure schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Reference numeral is as follows:

1---heat collector 2---water tank

3---circulating pump 4---regular solar vacuum tube

5---common header 6---collecting system

7---insulation water storage system 8---auxiliary heating system

9---indoor water supply system 10---header

The double-deck solar energy vacuum tube of 11---heat exchange jackets 12---

13---tail box 14---stainless steel connector

15---heat transferring medium 16---heat transferring medium inlet

17---exhaust outlet 18---heat-insulation layer

As Fig. 3, shown in Figure 4, this solar heating engineering heat exchanger is mainly by collecting system 6, insulation water storage system 7, auxiliary heating system 8 and indoor water supply system 9 are formed, be interconnected by pipeline between each system, wherein collecting system 6 is arranged in a row hot cell by two and is formed, each thermal-arrest unit is by header 10, heat exchange jackets 11, double-deck solar energy vacuum tube 12 and tail box 13 are formed, double-deck solar energy vacuum tube 12 is arranged side by side, its bottom is installed on the tail box 13, the top is connected with the header inner bag by stainless steel tube 14 by interior pipe, be injected with heat transferring medium 15 in the header inner bag, be equipped with heat transferring medium inlet 16 and exhaust outlet 17 on the header, be provided with heat-insulation layer 18 between header shell and the header inner bag, heat exchange jackets is installed on the header 10, wherein one is oral siphon, another root is a return pipe, the first thermal-arrest unit oral siphon and return pipe with row are connected with the heat storage water tank 4 of insulation water storage system, the oral siphon of all the other each thermal-arrest unit and return pipe are communicated with respectively successively, and circulation is communicated with in the most last thermal-arrest unit.

The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but on its shape or structure, do any variation; every have identical with a utility model or akin technical scheme, all within its protection domain.

Claims

1, a kind of novel solar water conservancy project pass heat exchanger, comprise collecting system, the insulation water storage system, auxiliary heating system and indoor water supply system, it is characterized in that, described collecting system is made up of some thermal-arrests unit, each thermal-arrest unit is by header, heat exchange jackets, double-deck solar energy vacuum tube and tail box are formed, double-deck solar energy vacuum tube is arranged side by side, its bottom is installed on the tail box, the top is connected with the header inner bag by connector by interior pipe, be injected with heat transferring medium in the header inner bag, be provided with heat-insulation layer between header shell and the header inner bag, described heat exchange jackets is installed on the header, wherein one is oral siphon, another root is a return pipe, the first thermal-arrest unit oral siphon and return pipe with row are connected with the heat storage water tank of insulation water storage system, and the oral siphon of all the other each thermal-arrest unit and return pipe are communicated with respectively successively, and circulation is communicated with in the most last thermal-arrest unit.

2, novel solar water conservancy project pass heat exchanger according to claim 1 is characterized in that, is equipped with heat transferring medium inlet and exhaust outlet on the header of described thermal-arrest unit.

3, novel solar water conservancy project pass heat exchanger according to claim 1 is characterized in that, described coupling device is a stainless steel tube, and heat exchange jackets is stainless steel tube, bellows or copper pipe.