CN102434685A

CN102434685A - Emptying and antifreezing valve for solar pipes

Info

Publication number: CN102434685A
Application number: CN2011102570701A
Authority: CN
Inventors: 郭强
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2012-05-02

Abstract

The invention discloses an emptying and antifreezing valve for solar pipes, which is characterized by comprising a valve body, a sealed air-inlet pipe and an elastic sleeve, wherein the sealed air-inlet pipe is nested in the valve body and can slide upwards and downwards along the inner cavity of the valve body, and the elastic sleeve is sleeved on the sealed air-inlet pipe; a gap is arranged between the elastic sleeve and the sealed air-inlet pipe; the valve body is in a tubular structure which, from top to bottom, passes through a solar water tank; the lower part of the side wall of the valve body in the solar water tank is provided with water inlet/outlet holes, and the upper part of the side wall of the valve body is provided with a valve-body air hole; a sealing platform corresponding to the elastic sleeve is arranged on the inner wall of the valve body, and the position of the sealing platform is lower than that of the lowest water inlet/outlet hole; the sealed air-inlet pipe is in a hollow tubular structure; and a part (corresponding to the elastic sleeve) of the lower end of the sealed air-inlet pipe is provided with a boss. The valve disclosed by the invention integrates water supply and sewage functions and a pipe emptying function, and can effectively avoid the occurrence of a situation that water can not be used because the solar pipe is frozen and plugged due to temperature reduction, thereby really realizing the emptying and antifreezing performances of the solar pipe; and the valve is ingenious in structure and high in reliability.

Description

A kind of solar tube emptying antifreezing valve

Technical field

The present invention relates to a kind of antifreeze valve of solar tube emptying that is used for.

Technical background

At present, solar water heater has obtained increasing use owing to have characteristics such as considerable energy saving environmental protection.But in use especially when temperature is low, its yard piping when temperature is low, usually causes freezing of outdoor upper and lower conduit road stifled because water is arranged, and this not only causes the waste of water resources, especially has a strong impact on the normal use of solar water heater.For addressing the above problem, mainly contain following three kinds of methods: 1, adopt the pipeline tracing band; 2, adopt the electronics exhaust-valve; 3, put on the root superconducting heat pipe in the employing pipeline.But above-mentioned various way has in use also produced a lot of problems, and electric-heating belt is dangerous, fire hazardous and accident of human electric shock, and its power consumption is high, the life-span is short; Employing superconducting heat pipe technology involves great expense in the existing technology, and effect is bad, and receives the installation restriction to be difficult to apply.The gas introducing-type exhaust-valve that a patent No. is arranged in the prior art is ZL01237499.7 needs to adopt three quick opening valves realize pipe evacuation, though this purging method is reliable; But using process is very complicated; Be difficult to grasp, and three quick opening valves are easily damaged parts, are unfavorable for promoting.Also has the ceramic seal emptying three-way valve that the patent No. is ZL01261313.4; Though ability emptying solar energy upper and lower conduit road is because its sealing position is beyond solar water container, so between inlet and outlet pipe lines between tank shell and the inner bag and the emptying three-way valve water is arranged still; When having arrived subzero; This section water is easy to be frozen in, and causes the current in the water tank not come out, and is difficult to realize thorough evacuation and anti-freezing.

Summary of the invention

The object of the invention be exactly with to the defective of above-mentioned existing technology, a kind of simple in structure, safe and convenient to use, reliable performance is provided, water sealing part water tank with interior can thoroughly antifreeze valve to pipe evacuation.

The present invention realizes through following technological scheme:

A kind of solar tube emptying antifreezing valve; It is characterized in that: this valve comprises valve body (3), be sleeved in the valve body (3) and can along body cavity slide up and down be sealed into tracheae (5), be sleeved on the spring-backed quill (4) that is sealed into tracheae (5) outside; Spring-backed quill (4) and be sealed between the tracheae (5) gapped; Valve body (3) is a tubular structure that passes solar water container from top to bottom, has paddle hole (7) in the lower sidewall of solar water container inner valve body (3), and top offers valve body pore (12); Be provided with sealing platform (8) corresponding to spring-backed quill (4) on the inwall of valve body (3); The position of sealing platform (8) is lower than minimum paddle hole, and being sealed into tracheae (5) is hollow tubular structure, and the corresponding spring-backed quill in lower end (4) that is sealed into tracheae (5) is provided with boss (6).

Under the normal condition; The lower end roof pressure of spring-backed quill (4) is in sealing platform (8), and the water in the solar water container can't flow into inlet and outlet pipe lines, when needs with the water in the solar water container; Can make and be sealed into tracheae (5) and move up along valve body (3) inner chamber; Drive spring-backed quill (4) and move up, its lower end breaks away from sealing platform (8), and the water in the water tank is under atmospheric pressure and action of gravity at this moment; Flow into upper and lower conduit by the paddle hole on the body wall, sealing platform, flow out by indoor water tap at last; When lack of water needed water filling in the water tank, water (flow) direction was opposite.When water or water filling finish; When needing emptying upper and lower conduit road, be sealed into tracheae (5) and move downward, make the lower end roof pressure of spring-backed quill (4) go up sealing at sealing platform (8); This moment, air can get into the upper and lower conduit road by the gap that is sealed between tracheae (5) and spring-backed quill (4); Be conducting atmosphere and upper and lower conduit road, the water in the solar energy upper and lower conduit road is flowed out by indoor water tap, realize that the solar energy water-supply pipeline evacuation is antifreeze.

The said tracheae (5) that is sealed into can be hollow structure, respectively offers last pore (13) and the air holes (14) that is communicated with hollow cavity about it on the sidewall at two ends, wherein goes up pore (13) and is located at more than the interior highest water level of water tank (13).When water or water filling finish; When needing emptying upper and lower conduit road, be sealed into tracheae (5) and move downward, make the lower end roof pressure of spring-backed quill (4) go up sealing at sealing platform (8); Be to be sealed into tracheae (5) to continue to move downward at this moment; Air holes (14) is exposed, this moment simultaneously through upper and lower pore and sleeve pipe be sealed into gap between the tracheae with atmosphere and turnover water pipe conducting, entering solar energy upper and lower conduit road.Said structure can avoid because spring-backed quill (4) and be sealed into the too small and not smooth problem of air-flow that possibly cause in gap between tracheae (5).

The said upper end that is sealed into tracheae (5) is connected with external thread rod (15), water tank (16) be provided with said external thread rod (15) mutually spiral shell and nut, also be fixed with gear on the external thread rod (15) and connect with electric-motor-driving.Can realize the up and down automatic control of water and pipe evacuation of water tank like this.

Said spring-backed quill (4) can be processed by silica gel or fluoroplastic.Above-mentioned material not only has elasticity preferably, and can tolerate the hot environment in the solar water container, strengthens working life of the present invention.

The said tracheae lower end that is sealed into is a turbination.Import the mouth of a river up and down conveniently to be sealed into tracheae.

To sum up can find out; The present invention will go up the function of subdominant chord and the pipe evacuation function is integrated in one, and it is positioned in the water tank, and the sealing platform and the pore that are used for sealing are positioned in the water tank; Use the present invention can effectively avoid because of temperature reduce with solar pipe freeze stifled cause can't the water situation generation; The real evacuation and anti-freezing of realizing solar pipe, and structure is ingenious, has higher reliability.

Below in conjunction with accompanying drawing the present invention is described further.

Description of drawings

Fig. 1 is the view of the present invention when carrying out pipe evacuation.

Generalized section when Fig. 2 is installed on the solar water container for the present invention (water-in and water-out state).

Embodiment

Like Fig. 1, shown in Figure 2; This valve comprises valve body 3, be sleeved in the valve body 3 and can along body cavity slide up and down be sealed into tracheae 5, be sleeved on the spring-backed quill 4 that is sealed into tracheae 5 outsides; Valve body 3 is a tubular structure that passes solar water container from top to bottom, on the sidewall of solar water container inner valve body 3, has paddle hole 7, and top offers valve body pore 12; Above-mentioned paddle hole 7 is furnished with a plurality of up and down at body wall; Be provided with sealing platform 8 corresponding to spring-backed quill 4 on the inwall of valve body 3, the position of sealing platform 8 is lower than minimum paddle hole, is sealed into tracheae 5 and is hollow tubular structure; The corresponding spring-backed quill 4 in lower end that is sealed into tracheae 5 is provided with boss 6; Be sealed on the sidewall of tracheae 5 and offer upper and lower two pores, last pore 13 is located in the water tank 1 more than the highest water level, and air holes 14 is positioned at boss 6 tops.

Water tank 1 is stretched out in valve body 3 upper ends in this mode of execution, and the upper end that is sealed into tracheae 5 connects external thread rod 15, water tank 1 be provided with said external thread rod 15 mutually spiral shell and nut 17, also be fixed with gear 2 and motor 16 transmission joint on the external thread rod 15.Can realize the up and down automatic control of water and pipe evacuation of water tank like this.Being sealed into the tracheae lower end is turbination.

In this mode of execution, the two ends of above-mentioned spring-backed quill 4 also are furnished with copper sheathing, so that the slip of spring-backed quill 4.The material of spring-backed quill can be selected silica gel, fluoroplastic etc. for use, requires and can tolerate the interior environment of water tank as long as can satisfy the elasticity of the present invention's action.

The present invention can have following working procedure:

Under the normal condition, the lower end roof pressure of spring-backed quill 4 is on sealing platform 8, and the water in the solar water container can't flow into inlet and outlet pipe lines; When needs during with the water in the solar water container, can make to be sealed into tracheae 5 and to move up along valve body 3 inner chambers, drive spring-backed quill 4 and move up; Its lower end breaks away from sealing platform 8; This moment, the pore that is sealed on tracheae 5 sidewalls all was plugged, thereby cut off being connected of pore and atmosphere, and the interior water of water tank is under atmospheric pressure and action of gravity; Flow into upper and lower conduit by the paddle hole on the body wall, sealing platform, flow out by indoor water tap at last.When needs emptying upper and lower conduit road, be sealed into tracheae and move downward, the lower end roof pressure of spring-backed quill is in the sealing of sealing platform; Being sealed into tracheae this moment continues to move downward up to the lower end pore and in spring-backed quill, reveals; This moment, with atmosphere and turnover water pipe conducting, the water in the water tank was stopped in the water tank through upper and lower pore, and air passes through pore; Be sealed into tracheae lower end pore; And sleeve pipe and the gap that is sealed between the tracheae get into solar energy upper and lower conduit road, and the water solar energy upper and lower conduit road in is flowed out by indoor water tap, and realization solar energy water-supply pipeline evacuation is antifreeze.

The foregoing description only is to a kind of indicative explaination of the present invention, the present invention includes but is not limited only to above mode of execution, and it also can have other conspicuous variations, all should think not break away from essence of the present invention.

Claims

1. solar tube emptying antifreezing valve; It is characterized in that: this valve comprises valve body (3), be sleeved in the valve body (3) and can along body cavity slide up and down be sealed into tracheae (5), be sleeved on the spring-backed quill (4) that is sealed into tracheae (5) outside; Spring-backed quill (4) and be sealed between the tracheae (5) gapped; Valve body (3) is a tubular structure that passes solar water container from top to bottom; Lower sidewall at solar water container inner valve body (3) has paddle hole (7); Top offers valve body pore (12), is provided with sealing platform (8) corresponding to spring-backed quill (4) on the inwall of valve body (3), and the position of sealing platform (8) is lower than minimum paddle hole; Being sealed into tracheae (5) is hollow tubular structure, and the corresponding spring-backed quill in lower end (4) that is sealed into tracheae (5) is provided with boss (6).

2. solar tube emptying antifreezing valve according to claim 1; It is characterized in that: the said tracheae (5) that is sealed into is a hollow structure; It respectively offers last pore (13) and the air holes (14) that is communicated with hollow cavity in two ends up and down, wherein goes up pore (13) and is located at more than the interior highest water level of water tank (13).

3. solar tube emptying antifreezing valve according to claim 1 and 2; It is characterized in that: the said upper end that is sealed into tracheae (5) is connected with external thread rod (15); Water tank (16) be provided with said external thread rod (15) mutually spiral shell and nut, also be fixed with gear on the external thread rod (15) and connect with electric-motor-driving.

4. solar tube emptying antifreezing valve according to claim 1 and 2 is characterized in that: said spring-backed quill (4) can be processed by silica gel or fluoroplastic.

5. solar tube emptying antifreezing valve according to claim 1 and 2 is characterized in that: the said tracheae lower end that is sealed into is a turbination.