CN209926622U

CN209926622U - Solar water heater and automatic control valve thereof

Info

Publication number: CN209926622U
Application number: CN201822138617.6U
Authority: CN
Inventors: 陆晨昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-01-10
Anticipated expiration: 2028-12-19

Abstract

The utility model discloses an automatic control valve of a solar water heater, which comprises a valve body, a valve core and a driving mechanism, wherein the valve body is provided with a first port, a second port and a third port communicated with the outside atmosphere; when the valve core moves to a first preset position, the first port and the second port are communicated, and a communication cavity formed between the first port and the second port is not communicated with the third port; when the valve core moves to a second preset position, the first port is not communicated with the second port, and the second port is communicated with the third port; and the outside of valve body is provided with electric heating wire, and when the temperature that temperature sensor detected was less than or equal to preset temperature, electric heating wire opened heating function. In the actual working process of the automatic control valve, when the solar water heater does not supply hot water, no water is in the water supply pipe and only the automatic control valve is needed to heat, so that the cost can be greatly reduced compared with the heating of the whole water supply pipe.

Description

Solar water heater and automatic control valve thereof

Technical Field

The utility model relates to a solar water heater technical field especially relates to a solar water heater and automatic control valve thereof.

Background

In northern areas, the outdoor temperature in winter is often lower than 0 ℃, so that a water pipe of the solar water heater is easy to freeze, even if the temperature of water in the solar water heater exceeds 90 ℃, the hot water cannot form convection because the water outlet pipe is too cold outdoors and the water outlet pipe is too thin under the condition that the hot water is not used, and the part of the water outlet pipe, which is far away from the solar water heater, is close to the outdoor temperature and is frozen, so that the water outlet pipe is blocked.

At present, a common method is to wrap a layer of heating wire outside the whole water outlet pipe to continuously heat the water outlet pipe, although the method can solve the problem of freezing prevention, the method has large power consumption and is easy to damage, and in addition, water in the water outlet pipe is cool at the beginning stage of water discharging.

In summary, how to solve the problem of high cost of preventing freezing of the water outlet pipe of the solar water heater becomes a technical problem to be solved urgently by the technical staff in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solar water heater and automatic control valve thereof to solve solar water heater's outlet pipe and realize the higher problem of frostproofing cost.

In order to achieve the above object, the present invention provides an automatic control valve for a solar water heater, the automatic control valve includes a valve body, a valve element disposed in the valve body, and a driving mechanism for driving the valve element to move in the valve body, the valve body is provided with a first port for communicating with a water outlet of the solar water heater, a second port for communicating with a water inlet of a water supply pipe at a user end, and a third port for communicating with the external atmosphere;

when the valve core moves to a first preset position, the first port and the second port are communicated, and a communication cavity formed between the first port and the second port is not communicated with the third port;

when the valve core moves to a second preset position, the first port is not communicated with the second port, and the second port is communicated with the third port;

and the outside of valve body is provided with the heat preservation, be provided with electric heater unit in the heat preservation, electric heater unit includes temperature sensor and electric heating wire, and works as when the temperature that temperature sensor detected is less than or equal to preset temperature, electric heating wire opens heating function.

Preferably, a partition plate is arranged in an inner cavity of the valve body, the partition plate divides the inner cavity into a first cavity and a second cavity, the driving mechanism is arranged in the first cavity, the first port, the second port and the third port are arranged in the second cavity, a through hole is formed in the partition plate, and the driving end of the valve core penetrates through the through hole in a sealing mode and is connected with the driving mechanism.

Preferably, the drive mechanism comprises a solenoid and a return spring;

the electromagnetic coil is sleeved on the driving end and is used for driving the valve core to move to the first preset position;

the reset spring is located between the end face of the driving end and the inner wall of the first cavity and used for resetting the valve core to a second preset position due to a first preset position when the valve core is not subjected to external force.

Preferably, an electric wire socket is further disposed on the outer side of the valve body, and the electric wire socket is used for transmitting electric energy to the electric heating wire and the electromagnetic coil.

Compared with the introduction content of the background technology, the automatic control valve of the solar water heater comprises a valve body, a valve core arranged in the valve body and a driving mechanism for driving the valve core to move in the valve body, wherein a first port communicated with a water outlet of the solar water heater, a second port communicated with a water inlet of a water supply pipe of a user side and a third port communicated with the outside atmosphere are arranged on the valve body; when the valve core moves to a first preset position, the first port and the second port are communicated, and a communication cavity formed between the first port and the second port is not communicated with the third port; when the valve core moves to a second preset position, the first port is not communicated with the second port, and the second port is communicated with the third port; and the outside of valve body is provided with the heat preservation, is provided with electric heater unit in the heat preservation, and electric heater unit includes temperature sensor and electric heating wire, and when the temperature that temperature sensor detected was less than or equal to and predetermines the temperature, electric heating wire opened the heating function. In the actual working process of the automatic control valve, when the solar water heater normally supplies hot water, the driving mechanism drives the valve plug to move to a first preset position, at the moment, the first port is communicated with the second port, and a communication cavity formed between the first port and the second port is not communicated with the third port, so that the hot water of the solar water heater can flow into a water supply pipe at a user end through the automatic control valve to supply hot water; when the solar water heater is not supplying hot water, the actuating mechanism drives the valve element to move to the second preset position, at the moment, the first port is not communicated with the second port, the second port is communicated with the third port, and the third port is communicated with the external atmosphere, so that water in the water supply pipe of the user end can be drained away from the water supply pipe under the action of gravity, and because no water exists in the water supply pipe, the problem that the water supply pipe is blocked due to freezing can be prevented, and because the outer side of the valve body is provided with the heat preservation layer and the electric heating device, the automatic control valve can be guaranteed to have an anti-freezing effect, and only the automatic control valve is electrically heated, compared with the cost greatly reduced for heating the whole water supply pipe.

In addition, the utility model also provides a solar water heater, including automatic control valve, this automatic control valve is the automatic control valve that any above-mentioned scheme described. Since the automatic control valve has the technical effects, the solar water heater with the automatic control valve also has corresponding technical effects, which are not described herein again.

Preferably, the water heater further comprises a control panel connected with the driving mechanism, and a hot water starting button is arranged on the control panel.

Preferably, a hot water usage selection button is further disposed on the control panel.

Preferably, the solar water heater further comprises a display device capable of displaying one or more of current time, water level information and water temperature information in the solar water heater.

Preferably, the display device is integrated on the control panel.

Drawings

Fig. 1 is a schematic view of an overall structure of a solar water heater according to an embodiment of the present invention;

FIG. 2 is a partially enlarged schematic view of a portion A of FIG. 1;

fig. 3 is a schematic cross-sectional structural diagram of the automatic control valve according to an embodiment of the present invention.

In the above figures 1-3 of the drawings,

the automatic control valve comprises an automatic control valve 1, a valve body 10, a first port 101, a second port 102, a third port 103, a heat insulation layer 104, a temperature sensor 1041, an electric heating wire 1042, a partition plate 105, a first cavity 106, a second cavity 107, an electric wire connection socket 108, a valve core 11, a driving mechanism 12, an electromagnetic coil 121, a return spring 122, a sealing ring 13, a solar water heater 2, a user side water supply pipe 3, a control panel 4, a display device 5, a temperature liquid level sensor 6 and a control panel connection socket 7.

Detailed Description

The core of the utility model is to provide a solar water heater and automatic control valve thereof to solve solar water heater's outlet pipe and realize the higher problem of frostproofing cost.

In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, in the automatic control valve of a solar water heater provided in the embodiment of the present invention, an automatic control valve 1 includes a valve body 10, a valve core 11 disposed in the valve body 10, and a driving mechanism 12 for driving the valve core 11 to move in the valve body 10, the valve body 10 is provided with a first port 101 for communicating with a water outlet of the solar water heater 2, a second port 102 for communicating with a water inlet of a user-side water supply pipe 3, and a third port 103 for communicating with the external atmosphere; when the valve core 11 moves to the first preset position, the first port 101 and the second port 102 are communicated, and a communication cavity formed between the first port 101 and the second port 102 is not communicated with the third port 103; when the valve core 11 moves to the second preset position, the first port 101 is not communicated with the second port 102, and the second port 102 is communicated with the third port 103; and the outer side of the valve body 10 is provided with a heat preservation layer 104, an electric heating device is arranged in the heat preservation layer 104, the electric heating device comprises a temperature sensor 1041 and an electric heating wire 1042, and when the temperature detected by the temperature sensor 1041 is lower than or equal to a preset temperature, the electric heating wire 1042 starts a heating function.

In the actual working process of the automatic control valve, when the solar water heater normally supplies hot water, the driving mechanism drives the valve plug to move to a first preset position, at the moment, the first port is communicated with the second port, and a communication cavity formed between the first port and the second port is not communicated with the third port, so that the hot water of the solar water heater can flow into a water supply pipe at a user end through the automatic control valve to supply hot water; when the solar water heater is not supplying hot water, the actuating mechanism drives the valve element to move to the second preset position, at the moment, the first port is not communicated with the second port, the second port is communicated with the third port, and the third port is communicated with the external atmosphere, so that water in the water supply pipe of the user end can be drained away from the water supply pipe under the action of gravity, and because no water exists in the water supply pipe, the problem that the water supply pipe is blocked due to freezing can be prevented, and because the outer side of the valve body is provided with the heat preservation layer and the electric heating device, the automatic control valve can be guaranteed to have an anti-freezing effect, and only the automatic control valve is electrically heated, compared with the cost greatly reduced for heating the whole water supply pipe.

In addition, no water is reserved in a water supply pipe of the user end, when water needs to be supplied, hot water in the solar water heater directly enters the water supply pipe, and the phenomenon of cold water at the initial stage of water discharging cannot occur. It should be noted that, generally, the preset temperature is preferably 0 ℃, because the freezing temperature of water is 0 ℃, the automatic control valve can be controlled not to be lower than 0 ℃ in cold winter by the heat insulation layer 104 arranged outside the automatic control valve, the temperature sensor 1041 and the electric heating wire 1042 arranged inside the heat insulation layer 104, and the corresponding control circuit (as should be known by those skilled in the art, the on/off of the circuit can be realized by the control circuit through the temperature control switch, and then the on/off of the electric heating wire can be realized according to the detection signal of the temperature sensor), and when the temperature sensor senses that the automatic control valve is lower than 0 ℃, the electric heating wire is electrified and heated, so as to ensure that the temperature of the automatic control valve itself exceeds 0 ℃, because there is no water in the water pipe before the automatic control valve is not opened, there is no cold water in the water pipe, and, therefore, the temperature of the water discharged by the automatic control valve is almost the same as that of the water of the solar water heater, so that the discharged water is ensured to be hot water.

In some specific embodiments, a partition plate 105 is disposed in the inner cavity of the valve body 10, the partition plate 105 divides the inner cavity into a first cavity 106 and a second cavity 107, the driving mechanism 12 is disposed in the first cavity 106, the first port 101, the second port 102 and the third port 103 are disposed in the second cavity 107, a through hole is disposed on the partition plate 105, and the driving end of the valve core 11 passes through the through hole in a sealing manner and is connected with the driving mechanism 12. The driving mechanism is isolated from the water flow cavity of the valve body by arranging the first cavity and the second cavity, so that the service life of the driving mechanism is longer, and the driving mechanism is convenient to realize electric control. It can be understood that the cavity structure of the above-mentioned double-cavity is merely a preferred example of the embodiment of the present invention, and in practical application, the inner cavity of the valve body may only have one cavity, and the driving mechanism is directly disposed in the water flow cavity, and of course, the driving mechanism at this time is mostly a pure mechanical driving mechanism, and is not affected by the water area.

In some more specific embodiments, the specific structure of the above-described drive mechanism 12 may include an electromagnetic coil 121 and a return spring 122; the electromagnetic coil 121 is sleeved on the driving end and used for driving the valve plug 11 to move to a first preset position; the return spring 122 is located between the end surface of the driving end and the inner wall of the first cavity 106, and is used for returning the valve element 11, which is not subjected to an external force, to the second preset position due to the first preset position. When hot water needs to be supplied, the electromagnetic coil is electrified to act on the driving end of the valve core to enable the valve core to move to the first preset position, and when the hot water does not need to be supplied, the end face of the driving end of the valve core moves to the second preset position under the elastic recovery action of the return spring, so that the valve core is switched between the first preset position and the second preset position. It is understood that the above is only a preferred example of the driving mechanism of the embodiment of the present invention, and in practical application, other driving mechanisms commonly used by those skilled in the art may also be used, such as the switching action of the valve core in the first preset position and the second preset position is realized by the movement of the motor-driven lead screw.

In some more specific embodiments, in order to facilitate connection of the electric wire of the automatic control valve, an electric wire socket 108 may be further provided generally at the outside of the valve body 10, the electric wire socket 108 being used to supply electric power to the electric heating wire 1042 and the solenoid coil 121. It will be understood that the electrical wires may be connected directly to the electrical heating wire and the electromagnetic coil, but the socket is designed to be more convenient for the user.

In a further embodiment, the solar water heater further comprises a control panel 4 connected with the driving mechanism 12, and the control panel 4 is provided with a hot water starting button. Through setting up control panel for automatic control valve's control is more convenient, can select to arrange in the position of needs according to the in-service use demand, for example set up in the bathroom, and convenience of customers opens.

In a further embodiment, the control panel 4 is further provided with a hot water usage selection button, and the water flow rate can be controlled by controlling the opening time and the opening degree of the automatic control valve. Through the selection button who sets up hot water volume, can more effectual improvement hot water utilization ratio, can all be utilized the inside water of user side delivery pipe, and need not the waste of vain. It should be noted that, as will be understood by those skilled in the art, the control panel should be provided with a control panel connection socket 7 in order to realize the electric control function.

In a further embodiment, the solar water heater further comprises a display device 5, wherein the display device 5 is capable of displaying one or more of the current time, the water level information and the water temperature information in the solar water heater. It is understood that the above is only a preferred example of the present invention for commonly used display information, and in practical application, a person skilled in the art may select other types of display information or more required display information according to actual needs. It should be noted that, in order to display the water level information and the water temperature information in the solar water heater, the solar water heater is further provided with a liquid level temperature sensor 6.

In some more specific embodiments, the display device 5 is preferably integrated on the control panel 4, so that a user can operate the control panel reasonably according to display information, and the user experience is further improved. It is understood that the display device is integrated on the control panel only as a preferred example of the embodiment of the present invention, and may be separately and independently disposed, and may be selectively arranged according to the requirement in the practical application process.

The solar water heater and the automatic control valve thereof provided by the utility model are introduced in detail above. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The automatic control valve of the solar water heater is characterized in that the automatic control valve (1) comprises a valve body (10), a valve core (11) arranged in the valve body (10) and a driving mechanism (12) used for driving the valve core (11) to move in the valve body (10), wherein a first port (101) used for being communicated with a water outlet of the solar water heater (2), a second port (102) used for being communicated with a water inlet of a user side water supply pipe (3) and a third port (103) communicated with the outside atmosphere are arranged on the valve body (10);

when the valve core (11) moves to a first preset position, the first port (101) is communicated with the second port (102), and a communication cavity formed between the first port (101) and the second port (102) is not communicated with the third port (103);

when the valve core (11) moves to a second preset position, the first port (101) is not communicated with the second port (102), and the second port (102) is communicated with the third port (103);

and a heat preservation layer (104) is arranged on the outer side of the valve body (10), an electric heating device is arranged in the heat preservation layer (104), the electric heating device comprises a temperature sensor (1041) and an electric heating wire (1042), and when the temperature detected by the temperature sensor (1041) is lower than or equal to a preset temperature, the electric heating wire (1042) starts a heating function.

2. The automatic control valve of a solar water heater according to claim 1, wherein a partition plate (105) is disposed in the inner cavity of the valve body (10), the partition plate (105) divides the inner cavity into a first cavity (106) and a second cavity (107), the driving mechanism (12) is disposed in the first cavity (106), the first port (101), the second port (102) and the third port (103) are disposed in the second cavity (107), a through hole is disposed on the partition plate (105), and the driving end of the valve core (11) is hermetically connected with the driving mechanism (12) and passes through the through hole.

3. The automatic control valve of a solar water heater according to claim 2, wherein the driving mechanism (12) comprises a solenoid coil (121) and a return spring (122);

the electromagnetic coil (121) is sleeved on the driving end and is used for driving the valve core (11) to move to the first preset position;

the return spring (122) is located between the end face of the driving end and the inner wall of the first cavity (106) and used for returning the valve core (11) to a second preset position due to a first preset position when external force is not applied.

4. The automatic control valve of a solar water heater according to claim 3, wherein an electric wire socket (108) is further provided at an outer side of the valve body (10), the electric wire socket (108) being used to supply electric power to the electric heating wire (1042) and the electromagnetic coil (121).

5. A solar water heater comprising an automatic control valve, wherein the automatic control valve is according to any one of claims 1-4.

6. Solar water heater according to claim 5, further comprising a control panel (4) connected to said driving mechanism (12), said control panel (4) being provided with a hot water start button.

7. Solar water heater according to claim 6, characterized in that the control panel (4) is further provided with a hot water usage selection button.

8. Solar water heater according to claim 7, further comprising a display device (5), said display device (5) being capable of displaying one or more of current time, water level information and water temperature information within the solar water heater.

9. Solar water heater according to claim 8, characterised in that said display means (5) are integrated on said control panel (4).