阅读说明：本技术 平板太阳能集热器自限温通风阀 (Self-temperature-limiting ventilation valve of flat-plate solar collector ) 是由 张建强 郭卫星 李忠峰 陈华 于 2021-05-25 设计创作，主要内容包括：本发明专利涉及集热器技术领域,尤其涉及一种平板太阳能集热器自限温通风阀,包括通风孔栓塞、栓塞连杆、栓塞顶紧弹簧、推杆以及膨胀器,在平板太阳能集热器的边框上设有通风孔,所述通风孔上活动连接有所述通风孔栓塞,通风孔栓塞从通风孔的外侧插入并与通风孔内侧的所述栓塞连杆连接在一起,所述栓塞连杆与集热器边框之间设有所述栓塞顶紧弹簧,所述膨胀器位于平板太阳能集热器的中间,膨胀器的两端分别与所述推杆的一端连接,所述推杆的另一端与栓塞连杆接触配合。本装置在不改变原平板太阳能集热器集热性能的前提下,可集成于普遍平板太阳能集热器内部,限制其最高集热温度,避免太阳能集热系统在高温下运行,更加安全可靠。(The invention relates to the technical field of heat collectors, in particular to a self-temperature-limiting vent valve of a flat-plate solar collector, which comprises a vent hole plug, a plug connecting rod, a plug tightening spring, a push rod and an expander, wherein a vent hole is formed in a frame of the flat-plate solar collector, the vent hole plug is movably connected to the vent hole, the vent hole plug is inserted from the outer side of the vent hole and is connected with the plug connecting rod on the inner side of the vent hole, the plug tightening spring is arranged between the plug connecting rod and the frame of the solar collector, the expander is positioned in the middle of the flat-plate solar collector, two ends of the expander are respectively connected with one end of the push rod, and the other end of the push rod is in contact fit with the plug connecting rod. The device can be integrated in the universal flat-plate solar collector without changing the heat collection performance of the original flat-plate solar collector, limits the highest heat collection temperature, avoids the solar heat collection system to operate at high temperature, and is safer and more reliable.)

1. The utility model provides a flat-plate solar collector is from limit for temperature ventilation valve which characterized in that: including ventilation hole embolism, embolism connecting rod, embolism top tight spring, push rod and expander, be equipped with the ventilation hole on flat-plate solar collector's frame, swing joint has on the ventilation hole embolism, ventilation hole embolism insert from the outside in ventilation hole and with the ventilation hole inboard the embolism connecting rod links together, be equipped with between embolism connecting rod and the heat collector frame embolism top tight spring, the expander is located flat-plate solar collector's centre, the both ends of expander respectively with the one end of push rod is connected, the other end and the contact cooperation of embolism connecting rod of push rod.

2. The flat-plate solar collector self-temperature-limiting vent valve according to claim 1, characterized in that: the other end of the push rod is movably inserted into the plug connecting rod, an adjusting nut is connected to the push rod in a threaded mode, and one side of the adjusting nut is in contact fit with the plug connecting rod.

3. The flat-plate solar collector self-temperature-limiting vent valve according to claim 2, characterized in that: one end of the plug jacking spring is sleeved at the other end of the push rod, and the other end of the plug jacking spring is connected with a frame of the flat-plate solar collector.

4. The flat-plate solar collector self-temperature-limiting vent valve according to claim 3, characterized in that: the expander adopts a self-operated thermal expander.

5. The flat-plate solar collector self-temperature-limiting vent valve according to claim 4, wherein: the vent plug is conical.

6. The flat-plate solar collector self-temperature-limiting vent valve according to claim 5, wherein: the flat-plate solar collector comprises a heat collection transverse collecting pipe, a heat collector frame, heat collection branch pipes and expander slides, wherein the number of the heat collection branch pipes is multiple, two ends of each heat collection branch pipe are respectively connected with the heat collection transverse collecting pipe, the heat collector frame is arranged on the outer side of each heat collection branch pipe, the expander slides are welded in the middles of the heat collection branch pipes in a crossing mode, and the expanders are located in the middles of the expander slides.

7. The flat-plate solar collector self-temperature-limiting vent valve according to claim 6, characterized in that: the upper side of the heat collecting branch pipe is provided with a double-layer glass cover plate, and inert gas is filled or vacuum pumping is carried out in the double-layer glass cover plate.

8. The flat-plate solar collector self-temperature-limiting vent valve according to claim 7, characterized in that: the expander comprises a liquid reservoir and a corrugated expansion pipe, the liquid reservoir is welded on the expander slide, the corrugated expansion pipe is positioned at two ends of the liquid reservoir and communicated with the liquid reservoir, and the outer end of the corrugated expansion pipe is of a closed structure and is connected with the push rod.

9. The flat-plate solar collector self-temperature-limiting vent valve according to claim 1, characterized in that: the expansion device comprises a liquid storage device and a corrugated expansion pipe, the liquid storage device is arranged in the middle of the flat-plate solar collector, the corrugated expansion pipe is located at two ends of the liquid storage device and communicated with the liquid storage device, and the outer end of the corrugated expansion pipe is of a closed structure and is connected with the push rod.

10. The flat-plate solar collector self-temperature-limiting vent valve according to claim 8 or 9, wherein: and a guide sleeve is arranged outside the push rod and is fixed on the expander slide.

Technical Field

The invention relates to the technical field of solar collectors, in particular to a self-temperature-limiting vent valve of a flat-plate solar collector.

Background

The solar energy and building integrated technology application enables a solar water heating system to be gradually changed into whole district integral planning and collective application from original independent application of each household, although the integration degree of the solar energy and the building is improved, at the initial stage of residence of a district, the heat collection quantity of the solar energy system can not be completely utilized, most of the solar heat collectors are in an idle sunning state or a closed sunning state, the service life of the solar heat collectors is seriously influenced, and the system is unsafe to operate due to high-temperature and high-pressure operation. The overheating phenomenon of the solar water heating system in summer becomes a stubborn disease of the solar heat utilization system, and at present, no ventilation and ventilation valve for a flat-plate solar heat collector exists, and the overheating condition is prevented through the ventilation and ventilation valve.

Disclosure of Invention

The invention aims to overcome the defects of the technology and provide the self-temperature-limiting through valve of the flat-plate solar collector.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a flat-plate solar collector is from limit for temperature ventilation valve, includes ventilation hole embolism, embolism connecting rod, embolism top tight spring, push rod and expander, is equipped with the ventilation hole on flat-plate solar collector's frame, swing joint has on the ventilation hole embolism, ventilation hole embolism insert from the outside in ventilation hole and with the ventilation hole inboard the embolism connecting rod links together, be equipped with between embolism connecting rod and the heat collector frame embolism top tight spring, the expander is located flat-plate solar collector's centre, the both ends of expander respectively with the one end of push rod is connected, the other end and the contact cooperation of embolism connecting rod of push rod. Under the initial condition, the frame inner wall of dull and stereotyped solar collector is kept away from to the embolism connecting rod under the effect of spring, drive the ventilation hole embolism and compress tightly the ventilation hole all the time, make the ventilation hole be in closed state, in the first scheme, the other end of push rod only slightly contacts with one side of embolism connecting rod, be heated when the expander and then expand, drive the push rod and move outward, when reaching the confined temperature, and then promote the embolism connecting rod of frame both sides, make embolism and ventilation hole produce the gap, reach aeration cooling's effect. The device can be integrated in the common flat-plate solar collector on the premise of not changing the heat collection performance of the original flat-plate solar collector, limits the highest heat collection temperature, avoids the solar heat collection system from running at high temperature, and is safer and more reliable.

Preferably, the other end of the push rod is movably inserted into the plug connecting rod, an adjusting nut is connected to the push rod in a threaded manner, and one side of the adjusting nut is in contact fit with the plug connecting rod. This is a second solution of the device that allows to control the limiting temperature when the vent is open. Adjusting nut and embolism connecting rod carry out the contact and are connected in this scheme, through the clearance between adjusting nut and the embolism connecting rod on the regulation push rod, the temperature when controlling the ventilation hole and opening.

Preferably, one end of the plug jacking spring is sleeved at the other end of the push rod, and the other end of the plug jacking spring is connected with the frame of the flat-plate solar collector. The plug pushing spring is sleeved on the push rod, so that the limiting effect can be achieved, and the number of the plug pushing springs in the device is determined according to the number of the vent holes, so that the purpose of enabling the plug connecting rod to be stressed uniformly is achieved.

Preferably, the expander is a self-operated thermal expander.

Preferably, the vent plug is conical. The conical configuration enables a tighter seal with the vent.

Preferably, the flat-plate solar collector comprises a heat collection transverse collecting pipe, a heat collector frame, heat collection branch pipes and expander slides, the heat collection branch pipes are provided with a plurality of pieces, two ends of each heat collection branch pipe are respectively connected with the heat collection transverse collecting pipe, the heat collector frame is arranged on the outer side of each heat collection branch pipe, the expander slides are welded in the middle of each heat collection branch pipe in a crossing manner, and the expander is located in the middle of the expander slide.

Preferably, a double-layer glass cover plate is arranged on the upper side of the heat collecting branch pipe, and inert gas is filled in or vacuum is pumped in the double-layer glass cover plate.

The invention has the beneficial effects that: compared with the prior art, the self-operated temperature control ventilation valve is developed, the device adopts the thermal expansion principle to arrange the vent holes on the frame of the original flat plate collector, when the temperature reaches the set temperature, the vent holes are automatically opened to ventilate and cool, and finally the heat collector is efficient and can not be overheated.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a partial enlarged view of the plug portion of the vent in the present invention;

fig. 3 is a schematic view of the expander according to the present invention.

Detailed Description

Spatially relative terms such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe the spatial relationship of one feature or characteristic to another feature or characteristic as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1-3, a self-temperature-limiting vent valve for a flat-plate solar collector comprises a vent plug 7, a plug connecting rod 8, a plug tightening spring 10, an adjusting nut 11, a push rod 12 and an expander 13; be equipped with ventilation hole 3 on the heat collector frame, swing joint has the ventilation hole embolism in the ventilation hole, and the ventilation hole embolism passes through from the inside of heat collector frame the embolism connecting rod links together, be equipped with embolism top tight spring between embolism connecting rod and the heat collector frame, the expander slide glass spanes the welding in the middle of each thermal-arrest branch pipe, the expander is located the centre of expander slide glass, the both ends of expander respectively with the one end of push rod is connected, the other end activity of push rod inserts inside the embolism connecting rod to threaded connection has adjusting nut on the push rod, adjusting nut's one side with embolism connecting rod contact cooperation.

The vent hole plug is conical, and the vent hole is blocked from the outside of the frame of the heat collector. The vent hole can be blocked by pulling the vent hole plug from the inner part of the heat collector frame through the plug connecting rod.

As shown in fig. 1 and 2, the flat-plate solar collector comprises a plurality of heat collecting transverse collecting pipes 1, a collector frame 2, heat collecting branch pipes 6 and expander slides 9, wherein two ends of each heat collecting branch pipe are respectively connected with the heat collecting transverse collecting pipes, the collector frame is arranged on the outer sides of the heat collecting branch pipes, the expander slides are welded in the middles of the heat collecting branch pipes in a crossing manner, and the expander is positioned in the middle of the expander slides. An expander slide is welded in the middle of each heat collecting branch pipe in the flat plate collector in a crossing mode, the effect of reinforcing the heat collecting branch pipes and the expansion temperature limiting device support is achieved, and meanwhile the effect of comprehensively transmitting the temperature of the heat collecting branch pipes to the expander 13 is achieved.

The upper side of the heat collecting branch pipe is provided with a double-layer glass cover plate 4, the inner side of the double-layer glass cover plate is provided with a heat collecting coating plate 5, and inert gas is filled in the double-layer glass cover plate or vacuum is pumped in the double-layer glass cover plate. When the outer frame of the flat plate collector is used for insulating the bottom plate and the frame, the double-layer glass filled with inert gas and the heat collection coating plate are used as the cover plate, so that the heat insulation performance of the system can be effectively improved.

As shown in fig. 3, the expander comprises a liquid reservoir 13-2 and a corrugated expansion pipe 13-1, the liquid reservoir is arranged in the middle of the flat plate solar collector, the corrugated expansion pipes are arranged at two ends of the liquid reservoir and communicated with the liquid reservoir, and the outer ends of the corrugated expansion pipes are of a closed structure and connected with the push rods. The liquid storage device is large in diameter and capable of storing more heat sensitive liquid, the liquid storage device is welded on the expander slide glass 9 and capable of effectively sensing the temperature comprehensively transmitted by each heat collecting branch pipe 6, the corrugated expansion pipes 13-1 with small diameters are communicated with two sides of the liquid storage device and mainly make large length response to the volume change of the heat sensitive liquid in the liquid storage device 13-2, the guide sleeve 14 can ensure that the push rod 12 is not inclined under the telescopic driving of the corrugated expansion pipes 13-1, and the adjusting nut 11 at the end part of the push rod 12 is effectively pushed to move.

The expander 13 expands after being heated to drive the push rod 12 to move outwards, and when the temperature reaches a limited temperature, the plug connecting rods 8 on two sides of the frame are further pushed to enable the plug 7 and the vent hole 3 to form a gap, so that the ventilation and cooling effects are achieved. When the temperature is reduced, the plug 7 blocks the vent hole 3 under the action of the plug propping spring 10, and the sealing and heat preservation are recovered. The clearance between the nut 11 and the plug connecting rod 8 is adjusted through the adjusting nut 11 on the push rod, so that the limiting temperature when the vent hole is opened is controlled.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.