CN201083448Y

CN201083448Y - Scale-proofing solar water heater

Info

Publication number: CN201083448Y
Application number: CNU2007200857547U
Authority: CN
Inventors: 李金升
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2008-07-09
Anticipated expiration: 2017-07-10

Abstract

The utility model discloses a scale resistant solar water heater which consists of a support, a water tank, a heat collector, a tail holder, an electric heating device, and a water inlet and outlet pipe. The utility model is characterized in that: a circular pipe (5) both ends of which are closed is arranged on the tail holder (4); a hole which is arranged on the upper side of the circular pipe (5) corresponds to a hole on the water tank (2); the upper end and the lower end of the heat collector (8) which is provided with a sealing ring are respectively and hermetically fixed inside the hole of the water tank (2) and the hole of the circular pipe (5); the water inlet and outlet pipe (7) is arranged on one side of the circular pipe (5); the electric heating device (9) is arranged on the other side of the circular pipe (5). Because the heat collector is a run-through cylindrical pipe and the water inlet and outlet pipe is arranged on the circular pipe on the lower end, water fluidity in the heat collector is increased; scale formation in the heat collector is rooted out; the aim of automatic scale resistance is achieved.

Description

A kind of anti-incrustation scale solar water heater

Technical field

The utility model relates to a kind of anti-incrustation scale solar water heater, belongs to technical field of solar water heaters.

Background technology

At present, solar water heater has obtained popularization and application widely with its excellent performance characteristics.Usually solar water heater comprises parts such as support, water tank, thermal-collecting tube, because after the long-time use of solar water heater, on collector tube inner wall, will produce incrustation scale, and be deposited on the collector tube inner wall, these incrustation scales not only influence mobile mutually, the biography temperature of water in the thermal-collecting tube, reduced the water storage capacity of thermal-collecting tube, more seriously these incrustation scales have influenced the lighting efficiency of thermal-collecting tube, cause the efficient of solar water heater to reduce, even cause reduce the service life of thermal-collecting tube, so the necessary frequent cleaning of thermal-collecting tube can be kept its best collecting efficiency.

But because some characteristics of thermal-collecting tube self, the need of work professional who cleans thermal-collecting tube at present could carry out, and this has increased the expense of cleaning undoubtedly.In order to address this problem, the solar water heater technical scheme that people's design makes new advances is the utility model patent of CN200520015448.7 such as the patent No., adopts the device that adds demineralized water before water inlet pipe, but this invention need add some extra means, causes the increase of use cost.The patent that CN02221944.7 is arranged again, change thermal-collecting tube into horizontally-arranged by original vertical setting of types, utilize the effect of incrustation scale self gravitation to make it fall to the bottom, establish a sewage draining exit again in the bottom, periodical blowdown, but this method for discharging pollution still exists blowdown unclean, still deposits the problem of some incrustation scales in thermal-collecting tube, can not well reach the purpose of blowdown.The inventor who also has establishes the through hole relative with thermal-collecting tube at following return duct lateral surface, remove the obstruction of through hole outside during blowdown, with the incrustation scale in the brush scavenge pipe that becomes mildewed, this method needs people's decontamination, and personnel are dangerous to snaking, can not reach the purpose of automatic pollution discharge.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, and a kind of anti-incrustation scale solar water heater is provided, and it does not need to increase extra means, does not need the snaking of choosing, and can prevent automatically that incrustation scale from depositing in thermal-collecting tube, fundamentally stops the generation of incrustation scale.

The technical solution of the utility model is, a kind of anti-incrustation scale solar water heater, form by support, water tank, thermal-collecting tube, tailstock, electric heater unit, water inlet pipe and water outlet pipe, it is characterized in that, on tailstock (4), establish the pipe (5) of two ends sealing, the hole that pipe (5) upside is established is corresponding with the hole on the water tank (2), and the thermal-collecting tube (8) that sealing ring is housed is distinguished sealing and fixing in the hole of water tank (2) and pipe (5) in two ends up and down, and water inlet pipe and water outlet pipe (7) is located at pipe (5) one sides.

A kind of anti-incrustation scale solar water heater described in the utility model, thermal-collecting tube (8) connects vacuum tube for cylindrical shape.

A kind of anti-incrustation scale solar water heater described in the utility model, electric heater unit (9) is installed in pipe (5) another side.

The utility model is compared with prior art, have following advantage and effect: because thermal-collecting tube is for connecting cylindrical tube, and water inlet pipe and water outlet pipe is located on the pipe of lower end, strengthened the flowability of water in the thermal-collecting tube, the formation and the deposition of incrustation scale in the thermal-collecting tube have been stopped, and electric heater unit is located at the opposite side of the mobile more weak relatively pipe of water, can also be connected with water tank and water tank inside is cleaned in the hole of water inlet pipe and water outlet pipe, the chance that further reduces incrustation scale formation and deposit by this device.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation of solar water heater in the prior art.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is the schematic diagram of thermal-collecting tube of solar water heater in the prior art.

Fig. 4 is the utility model thermal-collecting tube schematic diagram.

Fig. 5 is the utility model pipe (5) cutaway view.

In the drawings, 1 ', 1 support, 2 ', 2. water tank, 3. thermal-collecting tube, 4. tailstock, 5. pipe 6. seals, 7 ', 7. water inlet pipe and water outlet pipe, 8. thermal-collecting tube, 9 ', 9. electric heater unit.

The specific embodiment

Fig. 1 is the structural representation of solar water heater in the prior art.Be provided with a water tank (2 ') on support (1 ') top, thermal-collecting tube (3) upper end sealing and fixing is in water tank (2 '), and the lower end is placed on the tailstock (4), and water inlet pipe and water outlet pipe (7 ') is on water tank (2 ') side.

Embodiment as shown in Figure 2, be structural representation of the present utility model, on tailstock (4), be provided with a pipe (5), its manufacturing process is identical with water tank (2) technology, pipe diameter is slightly larger than the thermal-collecting tube diameter, make its volume less and reduce inner water amount, increase the moving pressure of thermal-arrest in-pipe flow, reach the purpose of automatic cleaning incrustation scale.Water inlet pipe and water outlet pipe (7) is arranged on pipe (5) one sides, electric heater unit (9) is arranged on pipe (5) opposite side, after adopting said structure, because thermal-collecting tube communicates up and down, the internal water property enhancing of flowing has overcome in the prior art, because the thermal-collecting tube bottom is the defective that the dead angle causes incrusted deposit, in addition, can also regularly clean pipe (5) inside, further reduce the chance that incrustation scale forms by hole and the water inlet pipe and water outlet pipe (7) that electric heater unit (9) is connected with pipe (5).

Among the embodiment as shown in Figure 4, thermal-collecting tube is sealed (6) and be arranged on thermal-collecting tube (8) inside upper part,, both its obstruction that water is flowed can be reduced to minimum, can also prevent from simultaneously in the process of carrying, to be damaged near the position of water tank (2).

Claims

1. anti-incrustation scale solar water heater, form by support, water tank, thermal-collecting tube, tailstock, electric heater unit, water inlet pipe and water outlet pipe, it is characterized in that: the pipe (5) of on tailstock (4), establishing two ends sealing, the upside of pipe (5) is provided with the hole, the thermal-collecting tube (8) that sealing ring is housed is distinguished sealing and fixing in the hole of water tank (2) and pipe (5) in two ends up and down, and water inlet pipe and water outlet pipe (7) is located at a side of pipe (5).

2. according to the described a kind of anti-incrustation scale solar water heater of claim 1, it is characterized in that: thermal-collecting tube (8) connects vacuum tube for cylindrical shape.

3. according to the described a kind of anti-incrustation scale solar water heater of claim 1, it is characterized in that: electric heater unit (9) is installed in the another side of pipe (5).