CN106369848A

CN106369848A - Split solar water heating system

Info

Publication number: CN106369848A
Application number: CN201610787713.6A
Authority: CN
Inventors: 周阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-02-01
Anticipated expiration: 2036-08-31
Also published as: CN106369848B

Abstract

The invention discloses a split solar water heating system. The split solar water heating system comprises a heat collector, a bearing coil pipe water tank, a circulating water inlet pipe and a circulating water return pipe, wherein the circulating water inlet pipe is connected with a circulating water inlet of a water tank, and the circulating water return pipe is connected with a circulating water outlet of the water tank; the heat collector is an indirect heat exchange type vacuum pipe heat collector, a heat exchange pipe is arranged inside the heat collector, and a heat exchange pipe connector communicates with the circulating water inlet pipe and the circulating water return pipe to form a loop ; water is supplemented for a heat collector header through an automatic water supplementing tank, the two ends of the header are each provided with a connector, and the connectors are connected with the water inlet pipe and the water return pipe correspondingly; the water inlet pipe and the water return pipe are connected with a coil pipe of the bearing coil pipe water tank so that a second loop can be formed; and starting and stopping of a circulating pump are controlled through a controller and a temperature sensing probe. The split solar water heating system is high in heat collection efficiency and long in service life, can effectively prevent the heat collector from being too hot, and can reduce the heat loss.

Description

A kind of splitting solar hot-water heating system

Technical field

The present invention relates to a kind of splitting solar hot-water heating system, belong to solar energy heat utilization field.

Background technology

With the development of social economy, energy shortage is seemed with problem of environmental pollution and becomes increasingly conspicuous.A large amount of exploitation can The renewable sources of energy, realize low-carbon economy, have become as the common recognition of society.The solar thermal utilization of solar energy is more and more applied in building In domestic hot-water and industry heating engineering.Existing domestic solar hot-water heating system, particularly split hot-water heating system, great majority are adopted With two kinds of forms: one kind is employing u-shaped copper pipe heat collector thermal-arrest and pressed serpentine tube water tank heat accumulation, controller adopts the temperature difference to circulate The keying of Schema control circulating pump, heat collector is internal higher for heat transferring medium, this system cost with coil pipe, consumes substantial amounts of Raw material metal, heat exchange efficiency is low, and it is overheated to be also easy to produce heat collector in continuous fair weather, heat transferring medium expanded by heating splash, System pressure is higher, easily causes leakage, has potential safety hazard；Another kind is using direct-type heat collector and pressed serpentine tube water tank, Heat collector water inlet and backwater are directly connected with coil pipe, though the relatively low heat collector water yield of this system cost is more, when temperature is higher, Swelling water is more, and water supply tank overflow is serious, the easy fouling of coil pipe, and collector efficiency is relatively low.

Content of the invention

The technical problem to be solved is for above-mentioned the deficiencies in the prior art, provides one kind can properly settle System thermal efficiency is low, and heat exchange area is little, the overheated and big problem of heat loss, and energy efficiency is high, low cost, life-span length.

For solving above-mentioned technical problem, the technical scheme that the present invention takes is: a kind of splitting solar hot-water heating system, this is System includes: heat collector, pressed serpentine tube water tank, circulation water inlet pipe, loops back water pipe, the top of pressed serpentine tube water tank is provided with a t/ P relief valve, is provided with one-way relief valves in cooling water inlet, circulation water inlet pipe and loop back the circulation water inlet respectively with water tank for the water pipe Connect with circulating outlet, described heat collector is indirect heat exchange type vacuum tube collector, is internally provided with two parallel heat exchange Pipe, two heat exchange interface tubes in heat collector one end mutually with corrugated tube connect, two heat exchange interface tubes of the other end respectively with follow Ring water inlet pipe connects with looping back water pipe, constitutes a loop, and heat collector header passes through automatic water supply tank moisturizing, and header two ends are each There is a joint, be connected with water inlet pipe and return pipe respectively, water inlet pipe and return pipe are connected structure with the coil pipe of pressed serpentine tube water tank Become second servo loop, be provided with an air bleeding valve in the peak position of circulation water inlet pipe, on looping back water pipe and return pipe respectively It is provided with circulating pump, check-valves and valve, circulating pump is electrically connected with controller, following in the header of heat collector near heat collector The middle and lower part of ring outlet and pressed serpentine tube water tank is respectively provided with a temperature-sensing probe, and temperature-sensing probe is electrically connected with controller.

Controller passes through the temperature difference and the keying of time control pump, and in heat collector, the water of heat exchanger tube is directly followed with Water in Water Tanks Ring, when heat collector temperature is higher, starts the coil heat exchange of the water in heat collector and water tank.

The invention has the beneficial effects as follows: the heat exchanger of this system is heat exchanger tube and coil pipe, and heat exchange area is big, and the first loop is Pressure-bearing loop, in heat exchanger tube, hot water directly supplies water tank efficiency high it is ensured that water cleaning.Second servo loop is open circuit, passes through Coil heat exchange, it is to avoid heat collector is overheated and thermal loss, reduces heat collector and coil pipe fouling, avoids raw in pollution water tank simultaneously Apply flexibly water.

Brief description

Fig. 1 is splitting solar hot-water heating system schematic diagram of the present invention.

In figure 1. heat collector, 2. air bleeding valve, 3. automatic water supply tank, 4. circulation water inlet pipe, 5. loop back water pipe, 6-1. stops Return valve, 6-2. check-valves, 7-1. circulating pump, 7-2. circulating pump, 8-1. valve, 8-2. valve, 9. return pipe, 10. water inlet pipe, 11. controllers.

Specific embodiment

The present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, a kind of splitting solar hot-water heating system, this system includes: heat collector 1, pressed serpentine tube water tank, circulation Water inlet pipe 4, loop back water pipe 5, the top of pressed serpentine tube water tank is provided with a t/p relief valve, is provided with unidirectional peace in cooling water inlet Full valve, circulation water inlet pipe 4 connects with the circulation water inlet of water tank and circulating outlet respectively with looping back water pipe 5, described thermal-arrest Device 1 is indirect heat exchange type vacuum tube collector, is internally provided with two parallel heat exchanger tubes, two in heat collector 1 one end are changed Heat pipe interfaces mutually with corrugated tube connect, two heat exchange interface tubes of the other end respectively with circulation water inlet pipe 4 and loop back water pipe 5 company Logical, constitute a loop, heat collector header passes through automatic water supply tank moisturizing, and respectively there is a joint at header two ends, respectively with water inlet Pipe 10 and return pipe 9 connect, and water inlet pipe 10 and return pipe 9 connect and compose second servo loop with the coil pipe of pressed serpentine tube water tank, are following The peak position of ring water inlet pipe 4 is provided with an air bleeding valve, is respectively equipped with circulating pump 7-1 on looping back water pipe 5 and return pipe 9 With 7-2, check-valves 6-1 and 6-2, valve 8-1 and 8-2, circulating pump 7-1 and 7-2 is electrically connected with controller, in the connection of heat collector 1 The middle and lower part of the circulating outlet in case near heat collector 1 and pressed serpentine tube water tank is respectively provided with a temperature-sensing probe, and temperature-sensitive is visited Head is electrically connected with controller 11.

Controller 11 passes through the keying of the temperature difference and time control circulating pump 7-1 and 7-2, during temperature difference circulation, the following of heat collector 1 Start circulating pump 7-1, the temperature difference is less than and stops circulation when 3 DEG C during higher than temperature in pressed serpentine tube water tank 7 DEG C of ring water outlet temperature, Start circulating pump 7-2 when the temperature of header in heat collector 1 is higher than 10 DEG C of temperature in pressed serpentine tube water tank, when the temperature difference is less than 5 DEG C Stop circulation.

This system heat exchange area is big, and the first loop is pressure-bearing loop, and in heat exchanger tube, hot water directly supplies water tank efficiency high, protects Card water cleaning.Second servo loop is open circuit, by coil heat exchange, it is to avoid heat collector 1 is overheated and thermal loss, reduces thermal-arrest Device 1 and coil pipe fouling, avoid domestic water in pollution water tank simultaneously.The t/p relief valve at the top of water tank and cooling water inlet One-way relief valves ensure that the pressure security of water tank and the water facilitating removal expansion, need not arrange expansion drum, cost-effective.

Claims

1. a kind of splitting solar hot-water heating system, this system includes: heat collector, pressed serpentine tube water tank, circulation water inlet pipe, loops back Water pipe, the top of pressed serpentine tube water tank is provided with a t/p relief valve, is provided with one-way relief valves, circulation water inlet pipe in cooling water inlet And loop back water pipe respectively and the circulation water inlet of water tank and circulating outlet connect it is characterised in that: between described heat collector is Connect heat exchange type vacuum tube collector, be internally provided with two parallel heat exchanger tubes, in two heat exchange interface tubes of heat collector one end Mutually connected with corrugated tube, two heat exchange interface tubes of the other end respectively with circulation water inlet pipe and loop back water pipe and connect, composition one Individual loop, heat collector header passes through automatic water supply tank moisturizing, and respectively there is a joint at header two ends, respectively with water inlet pipe and return pipe Connect, water inlet pipe and return pipe connect and compose second servo loop, in the peak of circulation water inlet pipe with the coil pipe of pressed serpentine tube water tank Position is provided with an air bleeding valve, is respectively equipped with circulating pump, check-valves and valve on looping back water pipe and return pipe, circulating pump with Controller electrically connects, and the circulating outlet in the header of heat collector near heat collector and the middle and lower part of pressed serpentine tube water tank are each It is provided with a temperature-sensing probe, temperature-sensing probe is electrically connected with controller.