CN2287276Y - Solar water heater with novel air intaking device - Google Patents

Abstract

The utility model relates to a solar water heater with a novel air inlet device. The utility model is composed of a water storing box body, a water inlet pipe and an overflow pipe which are respectively communicated with the water storing box body, and an air inlet device with is arranged on the three-way component of the overflow pipe. The air inlet device is a one-way air-inlet water check valve which is composed of a valve body and a valve core and is provided with a closing position when the valve core falls into the bottom of the valve body and an opening position when the valve core leaves the bottom of the valve body. The utility model has the advantages of convenient installation, beautiful appearance and high heat efficiency.

Description

Solar water heater with novel inlet duct

The utility model relates to daily necessities.More particularly, be a kind of solar water heater.

Solar water heater is owing to possess safety, health, energy savings, and once investment, the incomparable advantage of other classification water heaters such as long-term gain (comprising electric heater and gas heater), thereby more and more widely market is arranged.But, solar water heater of the prior art, people only focus at face shaping always, and aspect such as heat transfer type makes improvements, and install, improve the thermal efficiency with convenient, have but ignored inlet duct.Inlet duct is a requisite member in the solar water heater.In the prior art, the general passive solarenergy water heater of Shi Yonging, its inlet duct is a straight-through hose that is connected in the overflow pipe threeway, is unlikely to overflow from this hose in order to ensure the water in the storage tank, it must be erect, and highly for exceeding peak level 2M in the storage tank, for this reason, people can only be when mounted, increase and set up to have the quite strut of height, in order to support the air inlet hose, this not only brings the difficulty of installing, and influences attractive in appearance.For vacuum pipe solar water heater of the prior art, though the air inlet pipe height that is arranged in the overflow pipe threeway is not done requirement, but, above-mentioned any structure, its common defective that exists is: owing to adopt the through type air inlet pipe, make storage tank uncovered owing to the setting of air inlet pipe becomes, cause heat to dissipate, the thermal efficiency reduces.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of solar water heater with novel inlet duct is provided, so that conveniently install, beautify outward appearance, the raising thermal efficiency.

The purpose of this utility model is achieved through the following technical solutions:

The utility model is made of water storage casing, the water inlet pipe, the overflow pipe that are communicated with the water storage casing respectively and the inlet duct that is arranged in the overflow pipe threeway, described inlet duct is a unidirectional air inlet sealing valve, this air inlet sealing valve is made of valve body and spool, and has spool and fall into " passs " position of valve body bottom and spool and leave " opening " bottom the valve body.

The utility model has only when storage tank during from the water inlet pipe draining, forms certain negative pressure in the storage tank, and the spool in the check valve is owing to be subjected to the suction of negative pressure in the case, thereby leaves the valve body bottom, makes one-way valve opens; And when other situations, because the gravity of spool self, and the hydraulic pressure in the storage tank, spool falls into the valve body bottom, check valve thereby close.This shows, the utlity model has air inlet sealing function.

Compared with the prior art, the utlity model has following advantage:

1, the utility model does not need to increase support bar is set, and it is easy for installation, compact conformation, profile are complete, attractive in appearance.

2, the utility model has changed straight pipe structure of the prior art, for " uncovered " of storage tank is provided with the valve arrangement that can close automatically, thereby brings the raising of the thermal efficiency.

3, the utility model is simple in structure, cost is low, long service life.

4, the utility model does not need to change this body structure of water heater, can be water heater of the prior art yet and reequips, and is easy to implement.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model one-way valve structures schematic diagram.

Fig. 3 is another example structure schematic diagram of the utility model check valve.

By the following examples, in conjunction with the accompanying drawings, the utility model is further described.

Embodiment 1:

Referring to Fig. 1, employing is by water storage casing 1, the water inlet pipe 2 that is communicated with water storage casing 1 respectively, overflow pipe 3 and be arranged on the solar water heater structure that the inlet duct in the overflow pipe threeway 4 constitutes.Wherein inlet duct is a unidirectional air inlet sealing valve 5.

Referring to Fig. 2, air inlet sealing valve 5 is made of valve body 6 and spool 8, and has spool 8 and fall into " pass " position of valve body 6 bottoms and " opening " that spool 8 leaves valve body 6 bottoms.

In the present embodiment, as shown in Figure 2, valve body 6 adopts the back taper cavity, place pellet shot from a slingshot spool 8 in the cavity, the cavity bottom internal diameter is less than pellet shot from a slingshot spool 8 external diameters, and cavity top is provided with dog 10, dog 10 is provided with three at least, is used for avoiding pellet shot from a slingshot spool 8 to jump out from valve pocket.For the ease of installing, be shaped in the upper end of valve body 6 and take over 12, air inlet sealing valve 5 vertically is articulated in the overflow pipe threeway 4 by being connected its flexible pipe of taking on 12.In concrete the enforcement,, valve body 6 can be divided into upper and lower two sections making, be threaded therebetween for ease of assembling.

In the use, when the water in the storage tank when water inlet pipe discharges, form certain negative pressure in the storage tank, the pellet shot from a slingshot spool is left the valve body bottom because the existence of this negative pressure inhales, check valve thereby be opened forms current path; When the water in the storage tank stops when drainpipe is discharged, the pellet shot from a slingshot spool is because the effect of gravity falls back to the valve body bottom, and check valve is promptly closed; If when forming overflow, because the valve pocket water-filling also has a downward pressure to the pellet shot from a slingshot spool, valve is similarly closes.

Embodiment 2:

Referring to Fig. 3, the air inlet sealing valve 5 in the present embodiment, its valve body 7 have a flange 11 in the bottom of tubulose valve pocket, and external diameter is hinged on the flange 11 with the one side greater than the rubber chip spool 9 of flange 11 internal diameters.Other structures are with embodiment 1.

Claims (3)

1, the solar water heater that has novel inlet duct, constitute by water storage casing (1), the water inlet pipe (2) that is communicated with water storage casing (1) respectively, overflow pipe (3) and the inlet duct that is arranged in the overflow pipe threeway (4), described inlet duct is a unidirectional air inlet sealing valve (5), this air inlet sealing valve (5) is made of valve body (6,7) and spool (8,9), and has spool (8,9) and fall into " passs " position of valve body (6,7) bottom and spool (8,9) and leave " opening " bottom the valve body (6,7).

2, the solar water heater with novel inlet duct according to claim 1, it is characterized in that described air inlet sealing valve (5), its valve body (6) adopts the back taper cavity, place pellet shot from a slingshot spool (8) in the cavity, the cavity bottom internal diameter is less than pellet shot from a slingshot spool (8) external diameter, and cavity top is provided with dog (10).

3, the solar water heater with novel inlet duct according to claim 1, it is characterized in that described air inlet sealing valve (5), its valve body (7) has a flange (11) in the bottom of tubulose valve pocket, external diameter is hinged on the flange (11) with the one side greater than the rubber chip spool (9) of flange (11) internal diameter.

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