CN220581759U - Exhaust valve and solar water heater - Google Patents
Exhaust valve and solar water heater Download PDFInfo
- Publication number
- CN220581759U CN220581759U CN202322054143.8U CN202322054143U CN220581759U CN 220581759 U CN220581759 U CN 220581759U CN 202322054143 U CN202322054143 U CN 202322054143U CN 220581759 U CN220581759 U CN 220581759U
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- exhaust
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- cavity
- valve body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 230000000903 blocking effect Effects 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004321 preservation Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Details Of Valves (AREA)
Abstract
The utility model discloses an exhaust valve and a solar water heater, wherein the exhaust valve comprises: a valve body having a valve cavity with a top opening and a bottom opening; the plugging part is movably arranged in the valve cavity; and the valve cap is covered at the upper end of the valve body and is provided with an exhaust port. The exhaust valve is arranged at the exhaust hole of the water heater, the valve cavity of the exhaust valve is provided with the bottom opening communicated with the exhaust hole and the top opening communicated with the external atmosphere, and the bottom opening can be plugged when the pressure of the water tank is small by movably arranging the plugging part in the valve cavity, so that the inside of the water tank cannot be communicated with the external atmosphere, and the heat preservation effect is achieved. When the pressure of the water tank is high, the inside of the water tank is communicated with the outside atmosphere, so that the aim of exhausting and reducing the pressure in the water tank is fulfilled.
Description
Technical Field
The utility model relates to an exhaust valve and a solar water heater adopting the same.
Background
The solar water heater is a heating device for converting solar energy into heat energy, and heats water from low temperature to high temperature so as to meet the requirement of hot water in life and production of people. The solar water heater is divided into a vacuum tube type solar water heater and a panel type solar water heater according to structural forms. The vacuum tube type solar water heater is composed of a water tank of a heat collecting tube (namely a solar panel), a bracket and other related parts, and converts solar energy into heat energy mainly by means of the vacuum heat collecting tube, and the vacuum heat collecting tube utilizes the principle that hot water floats upwards and cold water sinks to enable water to generate microcirculation so as to obtain needed hot water.
In order to enable the pressure in the solar water heater to be discharged in time, the solar water heater is required to be provided with an exhaust hole, and the exhaust hole of the existing solar water heater is easy to be blocked. The existing exhaust structure is basically communicated with the atmosphere, heat loss is large at night or in cloudy days, product performance is reduced, the water heater cannot be efficiently insulated for a long time, and great inconvenience is brought to daily use.
The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The utility model provides an exhaust valve, which aims at solving the technical problems that an exhaust hole of a water heater is easy to block and the exhaust hole directly connects the inside of a water tank with the outside atmosphere, so that the heat loss is larger.
In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:
an exhaust valve, comprising:
a valve body having a valve cavity with a top opening and a bottom opening;
the plugging part is movably arranged in the valve cavity;
and the valve cap is covered at the upper end of the valve body, and an exhaust port is formed in the valve cap.
In some embodiments, the exhaust valve further comprises:
the water retaining ring is arranged in the valve cavity, the water retaining ring is in a horn mouth shape with a small upper end caliber and a large lower end caliber, the bottom end of the water retaining ring is in sealing connection with the inner wall of the valve body, and the water retaining ring and the valve body are clamped and blocked to form a water collecting cavity;
the projection of the exhaust port vertically downwards falls into the water collecting cavity, a drain hole communicated with the water collecting cavity is formed in the valve body, and the exhaust port is communicated with the valve cavity.
In some embodiments, the drain hole is provided near a lower end of the water collection chamber.
In some embodiments, a gap is provided between the upper end of the water deflector and the bonnet.
In some embodiments, the upper end of the water deflector is not lower than the upper end of the valve body.
In some embodiments, the bonnet includes a conical crown and a downward turned bill that fits over the outside of the upper end of the valve body.
In some embodiments, the vent is open on top of the cap.
In some embodiments, the valve body comprises a straight cylinder section, a necking section connected to the lower end of the straight cylinder section, and a connector section connected to the lower end of the necking section, and the plugging part is a sphere with a diameter not smaller than that of the bottom opening.
In some embodiments, the exhaust port has a plurality of exhaust ports.
The solar water heater comprises a water tank, wherein an exhaust hole is formed in the top of the water tank, and an exhaust valve is arranged at the exhaust hole.
Compared with the prior art, the utility model has the advantages and positive effects that:
the exhaust valve is used for being arranged at the exhaust hole of the water heater, the valve cavity of the exhaust valve is provided with the bottom opening communicated with the exhaust hole and the top opening communicated with the external atmosphere, and the bottom opening can be blocked by the blocking part under the action of gravity of the blocking part by moving the blocking part in the valve cavity, so that the valve cavity is blocked from the water tank, the water tank cannot be communicated with the external atmosphere, and the heat preservation effect is achieved. When the pressure in the water tank is increased and the gas pressure is greater than the gravity of the plugging part, the plugging part is jacked up by the gas pressure, a gap for communicating the valve cavity with the inside of the water tank is formed between the bottom opening and the plugging part, and then the inside of the water tank is communicated with the external atmosphere through the valve cavity, so that the purpose of exhausting and reducing the pressure in the water tank is achieved.
Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a vent valve according to the present utility model;
FIG. 2 is a cross-sectional view of one embodiment of the proposed vent valve;
FIG. 3 is a schematic view of the internal structure of an embodiment of the exhaust valve according to the present utility model;
FIG. 4 is a schematic view of the airflow path of one embodiment of the exhaust valve according to the present utility model;
fig. 5 is a schematic structural view of an embodiment of a solar water heater according to the present utility model.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
In order to solve the technical problem that the exhaust hole of the water heater is easy to be blocked and the exhaust hole directly connects the inside of the water tank with the outside air, and the technical problem that the heat loss is larger, the embodiment provides an exhaust valve, as shown in fig. 1, 2 and 3, comprising a valve body 11, a blocking part 12 and a valve cap 13, wherein the valve body 11 is provided with a valve cavity 110, the valve cavity 110 is provided with a top opening 111 and a bottom opening 112, and the blocking part 12 is movably arranged in the valve cavity 110 and is used for blocking or opening the bottom opening 112 of the valve cavity. The bonnet 13 is covered on the upper end of the valve body 11, the bonnet 13 is provided with an exhaust port 130, the top opening 111 is communicated with the exhaust port 130, and the top opening is communicated with the external atmosphere through the exhaust port 130.
The exhaust valve of this embodiment is used for setting up in the exhaust hole department of water heater, and bottom opening 112 and the exhaust hole intercommunication of the water tank of water heater, through setting up shutoff portion 12 in the valve pocket 110 activity, under the effect of shutoff portion 12 self gravity, it can be with bottom opening 112 shutoff, and then cuts off valve pocket 110 and the inside wall of water tank for the inside unable and outside atmosphere intercommunication of water tank play the heat retaining effect. When the pressure inside the water tank is increased and the gas pressure is greater than the gravity of the plugging portion, as shown in fig. 4, the plugging portion 12 is lifted up by the gas pressure, a gap capable of communicating the valve cavity 110 with the inside of the water tank is formed between the bottom opening 112 and the plugging portion 12, and then the inside of the water tank is communicated with the external atmosphere through the valve cavity 110, so that the purpose of exhausting and reducing the pressure inside the water tank is achieved. Therefore, the exhaust valve of the embodiment can simultaneously solve the technical problems of exhaust and heat preservation.
Since the solar water heater needs to be assembled in an outdoor non-shielding environment so as to be capable of fully receiving the irradiation of the sun to achieve the purpose of heating water, however, when rain and snow are in the weather, particularly in rainy days, rainwater easily enters the valve cavity 110 through the exhaust port 130, the rainwater is easily accumulated in the valve cavity 110 for a long time, water pressure can be formed at the position of the bottom opening 112 of the valve cavity, a pressure threshold for jacking up the blocking part 12 when the pressure in the water tank is increased, and even the blocking part cannot be jacked up at all, so that the exhaust function of the exhaust valve is lost. In order to solve the technical problem, in some embodiments, the exhaust valve further includes a water blocking ring 14, the water blocking ring 14 is disposed in the valve cavity 110, the water blocking ring 14 is in a horn shape with a small caliber at an upper end and a large caliber at a lower end, the bottom end of the water blocking ring 14 is in sealing connection with the inner wall of the valve body 11, and the water blocking ring 14 and the valve body 11 are clamped to form a water collecting cavity 15. So arranged, the rainwater entering through the exhaust port 130 falls into the water collecting cavity 15 and is collected by the water collecting cavity 15, so that a series of problems caused by the rainwater directly entering the valve cavity 110 can be avoided.
The water collecting chamber 15 has a certain receiving function, a small amount of rainwater can be collected therefrom, and the collected rainwater can be naturally evaporated and discharged to the outside natural world through the air outlet 130.
In order to prevent the water collecting chamber 15 from being filled with water, excessive rainwater still overflows into the valve chamber 110 through the upper end portion of the water blocking ring 14, and in some embodiments, the valve body 11 is provided with a water discharging hole 113 communicated with the water collecting chamber 15. When the water level of the water collecting chamber 15 reaches the height of the drain hole 113, the rainwater can be discharged from the drain hole 113 to the outside of the exhaust valve, and the problem that the collected rainwater overflows from the upper end part of the water retaining ring 14 to the valve chamber 110 is avoided.
In order to avoid that part of the rainwater flowing in from the side of the exhaust port 130 near the upper end of the water stop ring 14 falls into the valve chamber 110, the projection of the exhaust port 130 vertically downward falls into the water collecting chamber 15, i.e., at least the vertically falling rainwater entering from the exhaust port 130 will fall into the water collecting chamber 15, being collected by the water collecting chamber 15.
In order to improve the drainage degree of the water collecting cavity 15, in some embodiments, the drainage hole 113 is formed on the valve body 11 and is close to the lower end of the water collecting cavity 15, so as to reduce the water level line of the water collecting cavity 15, so that the water is drained out of the exhaust valve as timely as possible.
In some embodiments, a gap is formed between the upper end of the water blocking ring 14 and the valve cap 13, so that accumulated water in the water collecting cavity 15 evaporates into the air as soon as possible, and the water tank of the water heater is not influenced to be exhausted through the valve cavity 110 and the exhaust port 130 when the pressure is high.
Because the valve cap 13 is covered above the valve body 11, the top of the valve cap 13 is higher than the upper end edge of the valve body 11, in order to further improve the water storage capacity of the water collecting cavity 15, the rainwater accumulation speed is prevented from being too high in heavy rain, so that the rainwater cannot be discharged from the drain hole 113 in time, in some embodiments, the upper end of the water blocking ring 14 is not lower than the upper end of the valve body 11, and further, a part of the space between the valve cap 13 and the water blocking ring 14 is also included as a part of the water collecting cavity 15, so that the water storage capacity of the water collecting cavity 15 can be further improved.
In some embodiments, the bonnet 13 includes a tapered crown 131 and a downward turned bill 132, the bill 132 being positioned over the upper exterior of the valve body 11.
In some embodiments, the exhaust port 130 is formed in the cap top 131, and the air flow can be in a general downward and upward direction so as to ensure that the air flow discharged from the water tank is smooth.
In some embodiments, the valve body 11 includes a straight cylinder section 114, a necking section 115 connected to the lower end of the straight cylinder section 114, and a joint section 116 connected to the lower end of the necking section, the water retaining ring 14 is located in the straight cylinder section 114 and fixed to the inner surface of the straight cylinder section 114, at least part of the plugging portion 12 is located in the necking section 115, and the plugging portion 12 is a sphere with a diameter not smaller than that of the bottom opening 112, so that the sealing effect is better. When the gas pressure in the water tank is not greater than the gravity of the plugging part 12, the plugging part 12 plugs the bottom opening 112 at the bottom end of the necking section 115, and the joint section 116 is used for being fixedly connected with the exhaust hole of the water tank of the water heater.
In order to improve the reliability of the exhaust valve, to prevent the problem of losing the exhaust function of the exhaust valve when the exhaust port 130 is blocked, in some embodiments, the exhaust port 130 has a plurality of exhaust ports, and other exhaust ports still have the exhaust function when part of the exhaust ports 130 are blocked, so that the exhaust valve is more reliable. And when all the exhaust ports 130 can normally exhaust, the exhaust efficiency at this time is higher.
Similarly, in order to improve the drainage reliability of the exhaust valve, the problem that the drainage function of the exhaust valve is lost when the drainage hole 113 is blocked is prevented, in some embodiments, the drainage holes 113 are multiple, and other drainage holes 113 can still drain when part of the drainage holes 113 are blocked, so that the drainage function of the exhaust valve is more reliable. And when all the drain holes 113 can normally exhaust, the drain efficiency at this time is higher.
In order to improve the water-repellent performance of the bonnet 13, prevent rainwater from accumulating on the bonnet to block the exhaust port 130, the crown 131 is tapered, and the rainwater falling on the bonnet 13 can be guided down in time.
By opening the exhaust port 130 to the cap top 131 having a tapered shape, the cap top 131 can also prevent foreign matters from falling down, and the foreign matters can slide down under the action of gravity and cannot adhere to the surface of the cap top 131, so that the exhaust port 130 can be prevented from being blocked by the foreign matters.
Examples
The embodiment provides a solar water heater, as shown in fig. 5, which comprises a water tank 2, wherein the top of the water tank 2 is provided with an exhaust hole (not shown in the angle reason diagram), and an exhaust valve is arranged at the exhaust hole. Specifically, as shown in fig. 1 to 3, the exhaust valve includes a valve body 11, a blocking portion 12, and a valve cap 13, wherein the valve body 11 has a valve cavity 110, the valve cavity 110 has a top opening 111 and a bottom opening 112, and the blocking portion 12 is movably disposed in the valve cavity 110 for blocking or opening the bottom opening 112 of the valve cavity. The bonnet 13 is covered on the upper end of the valve body 11, the bonnet 13 is provided with an exhaust port 130, the top opening 111 is communicated with the exhaust port 130, and the top opening is communicated with the external atmosphere through the exhaust port 130.
The exhaust valve used in the solar water heater of this embodiment is used for setting up in the exhaust hole department of water tank, and bottom opening 112 and the exhaust hole intercommunication of the water tank of water heater, through setting up shutoff portion 12 in the valve pocket 110 activity, under the effect of shutoff portion 12 self gravity, it can be with bottom opening 112 shutoff, and then cuts off valve pocket 110 and the inside of water tank for the inside unable external atmosphere intercommunication of water tank plays the heat retaining effect. When the pressure in the water tank is increased and the gas pressure is greater than the gravity of the plugging part, the plugging part 12 is jacked up by the gas pressure, a gap which can be used for communicating the valve cavity 110 with the interior of the water tank is formed between the bottom opening 112 and the plugging part 12, and then the interior of the water tank is communicated with the external atmosphere through the valve cavity 110, so that the purpose of exhausting and reducing the pressure in the water tank is achieved. Therefore, the exhaust valve can solve the technical problems of exhaust and heat preservation at the same time.
Since the solar water heater needs to be assembled in an outdoor non-shielding environment so as to be capable of fully receiving the irradiation of the sun to achieve the purpose of heating water, however, when rain and snow are in the weather, particularly in rainy days, rainwater easily enters the valve cavity 110 through the exhaust port 130, the rainwater is easily accumulated in the valve cavity 110 for a long time, water pressure can be formed at the position of the bottom opening 112 of the valve cavity, a pressure threshold for jacking up the blocking part 12 when the pressure in the water tank is increased, and even the blocking part cannot be jacked up at all, so that the exhaust function of the exhaust valve is lost. In order to solve the technical problem, in some embodiments, the exhaust valve 1 further includes a water blocking ring 14, the water blocking ring 14 is disposed in the valve cavity 110, the water blocking ring 14 is in a horn shape with a small caliber at an upper end and a large caliber at a lower end, the bottom end of the water blocking ring 14 is in sealing connection with the inner wall of the valve body 11, and the water blocking ring 14 and the valve body 11 are clamped to form a water collecting cavity 15. So arranged, the rainwater entering through the exhaust port 130 falls into the water collecting cavity 15 and is collected by the water collecting cavity 15, so that a series of problems caused by the rainwater directly entering the valve cavity 110 can be avoided.
The water collecting chamber 15 has a certain receiving function, a small amount of rainwater can be collected therefrom, and the collected rainwater can be naturally evaporated and discharged to the outside natural world through the air outlet 130.
In order to prevent the water collecting chamber 15 from being filled with water, excessive rainwater still overflows into the valve chamber 110 through the upper end portion of the water blocking ring 14, and in some embodiments, the valve body 11 is provided with a water discharging hole 113 communicated with the water collecting chamber 15. When the water level of the water collecting chamber 15 reaches the height of the drain hole 113, the rainwater can be discharged from the drain hole 113 to the outside of the exhaust valve, and the problem that the collected rainwater overflows from the upper end part of the water retaining ring 14 to the valve chamber 110 is avoided.
In order to avoid that part of the rainwater flowing in from the side of the exhaust port 130 near the upper end of the water stop ring 14 falls into the valve chamber 110, the projection of the exhaust port 130 vertically downward falls into the water collecting chamber 15, i.e., at least the vertically falling rainwater entering from the exhaust port 130 will fall into the water collecting chamber 15, being collected by the water collecting chamber 15.
In order to improve the drainage degree of the water collecting cavity 15, in some embodiments, the drainage hole 113 is formed on the valve body 11 and is close to the lower end of the water collecting cavity 15, so as to reduce the water level line of the water collecting cavity 15, so that the water is drained out of the exhaust valve as timely as possible.
In some embodiments, a gap is formed between the upper end of the water blocking ring 14 and the valve cap 13, so that accumulated water in the water collecting cavity 15 evaporates into the air as soon as possible, and the water tank of the water heater is not influenced to be exhausted through the valve cavity 110 and the exhaust port 130 when the pressure is high.
Because the valve cap 13 is covered above the valve body 11, the top of the valve cap 13 is higher than the upper end edge of the valve body 11, in order to further improve the water storage capacity of the water collecting cavity 15, the rainwater accumulation speed is prevented from being too high in heavy rain, so that the rainwater cannot be discharged from the drain hole 113 in time, in some embodiments, the upper end of the water blocking ring 14 is not lower than the upper end of the valve body 11, and further, a part of the space between the valve cap 13 and the water blocking ring 14 is also included as a part of the water collecting cavity 15, so that the water storage capacity of the water collecting cavity 15 can be further improved.
In some embodiments, the bonnet 13 includes a tapered crown 131 and a downward turned bill 132, the bill 132 being positioned over the upper exterior of the valve body 11.
In some embodiments, the exhaust port 130 is formed in the cap top 131, and the air flow can be in a general downward and upward direction so as to ensure that the air flow discharged from the water tank is smooth.
In some embodiments, the valve body 11 includes a straight cylinder section 114, a necking section 115 connected to the lower end of the straight cylinder section 114, and a joint section 116 connected to the lower end of the necking section, the water retaining ring 14 is located in the straight cylinder section 114 and fixed to the inner surface of the straight cylinder section 114, at least part of the plugging portion 12 is located in the necking section 115, and the plugging portion 12 is a sphere with a diameter not smaller than that of the bottom opening 112, so that the sealing effect is better. When the gas pressure in the water tank is not greater than the gravity of the plugging part 12, the plugging part 12 plugs the bottom opening 112 at the bottom end of the necking section 115, and the joint section 116 is used for being fixedly connected with the exhaust hole of the water tank of the water heater.
In order to improve the reliability of the exhaust valve, to prevent the problem of losing the exhaust function of the exhaust valve when the exhaust port 130 is blocked, in some embodiments, the exhaust port 130 has a plurality of exhaust ports, and other exhaust ports still have the exhaust function when part of the exhaust ports 130 are blocked, so that the exhaust valve is more reliable. And when all the exhaust ports 130 can normally exhaust, the exhaust efficiency at this time is higher.
Similarly, in order to improve the drainage reliability of the exhaust valve, the problem that the drainage function of the exhaust valve is lost when the drainage hole 113 is blocked is prevented, in some embodiments, the drainage holes 113 are multiple, and other drainage holes 113 can still drain when part of the drainage holes 113 are blocked, so that the drainage function of the exhaust valve is more reliable. And when all the drain holes 113 can normally exhaust, the drain efficiency at this time is higher.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. An exhaust valve, comprising:
a valve body having a valve cavity with a top opening and a bottom opening;
the plugging part is movably arranged in the valve cavity;
the valve cap is covered at the upper end of the valve body, and is provided with an exhaust port which is communicated with the valve cavity.
2. The exhaust valve according to claim 1, further comprising:
the water retaining ring is arranged in the valve cavity, the water retaining ring is in a horn mouth shape with a small upper end caliber and a large lower end caliber, the bottom end of the water retaining ring is in sealing connection with the inner wall of the valve body, and the water retaining ring and the valve body are clamped and blocked to form a water collecting cavity;
the projection of the exhaust port vertically downwards falls into the water collecting cavity, and a drain hole communicated with the water collecting cavity is formed in the valve body.
3. The vent valve of claim 2 wherein the drain hole is open at a lower end proximate the water collection chamber.
4. The vent valve of claim 2 wherein a gap is provided between an upper end of the water deflector and the bonnet.
5. The exhaust valve according to claim 2, wherein an upper end of the water blocking ring is not lower than an upper end of the valve body.
6. The vent valve of claim 1 wherein the bonnet comprises a tapered crown and a downward turned bill, the bill being sleeved outside an upper end of the valve body.
7. The vent valve of claim 6 wherein the vent port opens on top of the cap.
8. The vent valve of any one of claims 1-7 wherein the valve body comprises a straight barrel section, a necked down section connected to a lower end of the straight barrel section, and an interface section connected to a lower end of the necked down section, the plug being a sphere having a diameter not less than a diameter of the bottom opening.
9. The exhaust valve according to any one of claims 1-7, wherein the exhaust port has a plurality of exhaust ports.
10. A solar water heater comprising a water tank, wherein the top of the water tank is provided with an exhaust hole, and the exhaust hole is provided with an exhaust valve according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054143.8U CN220581759U (en) | 2023-08-01 | 2023-08-01 | Exhaust valve and solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322054143.8U CN220581759U (en) | 2023-08-01 | 2023-08-01 | Exhaust valve and solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581759U true CN220581759U (en) | 2024-03-12 |
Family
ID=90116747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322054143.8U Active CN220581759U (en) | 2023-08-01 | 2023-08-01 | Exhaust valve and solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581759U (en) |
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2023
- 2023-08-01 CN CN202322054143.8U patent/CN220581759U/en active Active
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