阅读说明：本技术 一种带双向截止功能的智能电动阀及零冷水控制系统 (Intelligent electric valve with bidirectional stop function and zero-cold-water control system ) 是由 艾穗江 黄城洪 邓海燕 陈仕超 孙智 于 2019-10-29 设计创作，主要内容包括：本发明公开一种带双向截止功能的智能电动阀,包括阀座,设置在所述阀座上的热水流道、冷水流道、中心孔和电磁阀,所述中心孔将所述热水流道和所述冷水流道连通,所述电磁阀从所述热水流道一侧将所述中心孔堵住；其特征在于,在所述冷水流道一侧设有密封垫和与所述密封垫连接的压缩弹簧,所述密封垫在所述压缩弹簧的作用下将所述中心孔堵住。带有双向截止功能,实现冷水流道到热水流道方向的永久封闭可彻底解决开冷水造成的误启动热水器问题以及开热水导致部分冷水窜入热水流道从而使得热水温度下降的问题。本发明还提供一种使用了上述智能电动阀的零冷水控制系统。(The invention discloses an intelligent electric valve with a bidirectional stop function, which comprises a valve seat, and a hot water flow passage, a cold water flow passage, a central hole and an electromagnetic valve which are arranged on the valve seat, wherein the hot water flow passage and the cold water flow passage are communicated through the central hole, and the central hole is blocked by the electromagnetic valve from one side of the hot water flow passage; the cold water flow passage is characterized in that one side of the cold water flow passage is provided with a sealing gasket and a compression spring connected with the sealing gasket, and the sealing gasket blocks the central hole under the action of the compression spring. The water heater has a bidirectional stop function, realizes the permanent sealing of the direction from the cold water flow passage to the hot water flow passage, and can thoroughly solve the problem of false start of the water heater caused by cold water boiling and the problem of temperature reduction of hot water caused by the fact that part of cold water flows into the hot water flow passage due to hot water boiling. The invention also provides a zero-cold-water control system using the intelligent electric valve.)

1. An intelligent electric valve with a bidirectional stop function comprises a valve seat, and a hot water flow passage, a cold water flow passage, a central hole and an electromagnetic valve which are arranged on the valve seat, wherein the hot water flow passage and the cold water flow passage are communicated through the central hole, and the central hole is blocked from one side of the hot water flow passage by the electromagnetic valve; the cold water flow passage is characterized in that one side of the cold water flow passage is provided with a sealing gasket and a compression spring connected with the sealing gasket, and the sealing gasket blocks the central hole under the action of the compression spring.

2. The intelligent electric valve with the bidirectional cut-off function as claimed in claim 1, wherein the electromagnetic valve comprises: the solenoid valve body of band coil is installed spring, iron core on the solenoid valve body, the one end of iron core with spring coupling, the other end of iron core is connected with the tray through the rubber head be equipped with on the tray with the diaphragm that the centre bore was plugged up.

3. The intelligent electric valve with the bidirectional stop function as claimed in claim 1, wherein the gasket is mounted at an end of a guide pillar, a support pillar matched with the compression spring is arranged in the cold water flow passage, a guide groove matched with the guide pillar is arranged on the support pillar, and the other end of the guide pillar is movably inserted into the guide groove.

4. The intelligent electric valve with the bidirectional stop function as claimed in claim 3, wherein a nut is connected to the tail of the support column, and the nut is used for fixing the support column on the valve seat.

5. The intelligent electric valve with the bidirectional stop function as claimed in claim 1, wherein a first temperature sensor is arranged in the hot water flow passage.

6. The intelligent electric valve with the bidirectional stop function according to any one of claims 1 to 5, wherein an intelligent controller connected with the first temperature sensor and the electromagnetic valve is arranged on the valve seat, and a communication module is connected to the intelligent controller.

7. The intelligent electric valve with the bidirectional cut-off function as claimed in claim 6, wherein the communication module is a power carrier communication module and/or a wireless communication module.

8. A zero-cold water control system comprises a water heater, a cold water pipeline, a hot water pipeline and a water consumption point, wherein the hot water pipeline is connected between a hot water outlet end of the water heater and the water consumption point, the cold water pipeline is connected between a cold water inlet end of the water heater and the water consumption point, and a tap water connector is arranged on the cold water pipeline; the intelligent electric valve is characterized in that the intelligent electric valve as claimed in any one of claims 6 and 7 is installed at the water consumption point at the farthest end, the hot water flow passage and the cold water flow passage of the intelligent electric valve are respectively connected with the hot water pipeline and the cold water pipeline in series, so that the water heater, the hot water pipeline, the intelligent electric valve and the cold water pipeline form a circulating loop, and a circulating water pump is arranged on the circulating loop; the circulating water pump and the intelligent controller of the intelligent electric valve are connected with a main controller of the water heater; when the water heater starts to circularly preheat, the main controller controls the electromagnetic valve to open and start the circulating water pump through the intelligent controller, the main controller receives a signal of the first temperature sensor through the intelligent controller, and when the water temperature fed back by the first temperature sensor reaches a closing temperature, the main controller controls the circulating water pump to stop and close the electromagnetic valve.

9. The zero-cold-water control system according to claim 8, wherein the method for judging the closing temperature is as follows: and detecting the water outlet temperature of the water heater by using a second temperature sensor, wherein the closing temperature is equal to the water outlet temperature-set temperature difference.

10. The zero cold water control system of claim 9, wherein said set temperature difference is related to a length of said hot water line; when the length of the hot water pipeline is 30 meters or less, the set temperature difference is 2 ℃, when the length of the hot water pipeline is 30-60 meters, the set temperature difference is 3 ℃, and when the length of the hot water pipeline is 60 meters or more, the set temperature difference is 4 ℃;

the length of the hot water pipeline is calculated through the main controller, and the calculation method is as follows: detecting the water flow q of the preheating cycle by using a water flow sensor, wherein when the preheating cycle is started for the first time of the water heater, the main control unitThe device determines time T according to a temperature rising signal fed back by the first temperature sensor, the length of the hot water pipeline is L,

Technical Field

The invention relates to the technical field of water heaters, in particular to an intelligent electric valve with a bidirectional stop function and a zero-cold-water control system.

Background

In order to realize the function of instant heating and opening, the zero-cold water series gas water heater needs to preheat water in a pipeline, and a water pipe and the water heater need to form a closed circulation loop for preheating. There are currently two schemes for implementing a circulation loop: one is to install a return pipe; another is to install a one-way valve device at the remote water-using point of the pipeline. The first scheme needs to modify the water path of the user home, which is very troublesome; and the second scheme uses ordinary check valve can produce following problem, and when water pressure was too big, the user used cold water can cause the water heater mistake to start, can't accurately judge stop heating time, probably leads to the circulating water overheat or heat inadequately, and different pipeline length need manual setting stop heating time.

One patent is as follows: CN110206911, patent name: the invention discloses an electric stop valve and a zero-cold-water control system applying the same, and particularly discloses the electric stop valve which comprises a valve seat, wherein a valve core is arranged on the valve seat, the valve seat is a four-way valve and is provided with a hot water cavity and a cold water cavity, the valve core comprises a coil and an iron core arranged in the coil, the iron core is connected with one end of a rubber head through a spring, the other end of the rubber head is connected with a tray, the tray is provided with a diaphragm, and the hot water cavity and the cold water cavity are communicated and cut off through the movement of the tray and the diaphragm. After technical improvement, the problem of starting cold water by mistake is solved, but the phenomenon that the temperature of the boiled water is not constant still exists, namely, water in the cold water cavity enters the hot water cavity when the hot water is boiled, and the temperature of the outlet water is lower.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide the intelligent electric valve with the bidirectional stop function, which is convenient to assemble and safe.

In order to achieve the above purpose, the invention adopts the following technical scheme:

an intelligent electric valve with a bidirectional stop function comprises a valve seat, and a hot water flow passage, a cold water flow passage, a central hole and an electromagnetic valve which are arranged on the valve seat, wherein the hot water flow passage and the cold water flow passage are communicated through the central hole, and the central hole is blocked from one side of the hot water flow passage by the electromagnetic valve; the cold water flow passage is characterized in that one side of the cold water flow passage is provided with a sealing gasket and a compression spring connected with the sealing gasket, and the sealing gasket blocks the central hole under the action of the compression spring.

As a further explanation of the above aspect, the electromagnetic valve includes: the solenoid valve body of band coil is installed spring, iron core on the solenoid valve body, the one end of iron core with spring coupling, the other end of iron core is connected with the tray through the rubber head be equipped with on the tray with the diaphragm that the centre bore was plugged up.

As a further explanation of the above scheme, the sealing gasket is installed at an end of a guide pillar, a support pillar matched with the compression spring is arranged in the cold water flow passage, a guide groove matched with the guide pillar is arranged on the support pillar, and the other end of the guide pillar is movably inserted into the guide groove.

As a further explanation of the above solution, a nut is connected to the tail of the support column, and the nut is used to fix the support column on the valve seat.

As a further explanation of the above-described aspect, a first temperature sensor is provided in the hot water flow passage.

As a further explanation of the above scheme, an intelligent controller connected with the first temperature sensor and the electromagnetic valve is arranged on the valve seat, and a communication module is connected to the intelligent controller.

As a further explanation of the above scheme, the communication module is a power line carrier communication module and/or a wireless communication module.

A zero-cold water control system comprises a water heater, a cold water pipeline, a hot water pipeline and a water consumption point, wherein the hot water pipeline is connected between a hot water outlet end of the water heater and the water consumption point, the cold water pipeline is connected between a cold water inlet end of the water heater and the water consumption point, and a tap water connector is arranged on the cold water pipeline; the intelligent electric valve is arranged at the water consumption point at the farthest end, the hot water flow passage and the cold water flow passage of the intelligent electric valve are respectively connected with the hot water pipeline and the cold water pipeline in series, so that the water heater, the hot water pipeline, the intelligent electric valve and the cold water pipeline form a circulating loop, and a circulating water pump is arranged on the circulating loop; the circulating water pump and the intelligent controller of the intelligent electric valve are connected with a main controller of the water heater; when the water heater starts to circularly preheat, the main controller controls the electromagnetic valve to open and start the circulating water pump through the intelligent controller, the main controller receives a signal of the first temperature sensor through the intelligent controller, and when the water temperature fed back by the first temperature sensor reaches a closing temperature, the main controller controls the circulating water pump to stop and close the electromagnetic valve.

As a further explanation of the above solution, the method for determining the shutdown temperature is: and detecting the water outlet temperature of the water heater by using a second temperature sensor, wherein the closing temperature is equal to the water outlet temperature-set temperature difference.

As a further illustration of the above, the set temperature difference is related to the length of the hot water line; when the length of the hot water pipeline is 30 meters or less, the set temperature difference is 2 ℃, when the length of the hot water pipeline is 30-60 meters, the set temperature difference is 3 ℃, and when the length of the hot water pipeline is 60 meters or more, the set temperature difference is 4 ℃; the length of the hot water pipeline is calculated through the main controller, and the calculation method is as follows: the water flow rate q of the preheating cycle is detected by using the water flow rate sensor, and when the preheating cycle of the water heater is started for the first time, the main controller rises according to the temperature fed back by the first temperature sensorThe signal determines the time T, the length of the hot water pipeline is L,

and s is the cross-sectional area of the hot water pipeline.

The invention has the beneficial effects that:

the water heater has a bidirectional stop function, realizes the permanent closing of the direction from a cold water flow passage to a hot water flow passage, and can thoroughly solve the problem of false start of the water heater caused by cold water boiling and the problem of temperature reduction of hot water caused by the fact that part of cold water flows into the hot water flow passage due to hot water boiling.

The water heater can adapt to the length of the circulating pipeline in a self-adaptive manner, the water outlet temperature of the water heater can be automatically increased according to the length of the circulating pipeline, the problem that the water consumption point temperature is low or the circulating time is too long due to heat dissipation of the circulating pipeline can be solved, the circulating efficiency can be improved, manual setting is not needed, and the water heater is convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent electric valve with a bidirectional stop function provided by the invention.

Fig. 2 is a cross-sectional view of the intelligent electric valve with a bidirectional stop function provided by the invention.

Fig. 3 is a cut-off state diagram of the intelligent electric valve with the bidirectional cut-off function provided by the invention.

Fig. 4 is a diagram showing an opening state of the intelligent electric valve with a bidirectional stop function according to the present invention.

Fig. 5 is a schematic view of the piping installation of the zero-cold water control system provided by the present invention.

Fig. 6 is a heating control flow chart of the zero-cold water control system provided by the present invention.

Fig. 7 is a comparison graph showing the effect of the zero-cold-water control system using the intelligent electric valve provided by the present invention compared with the prior art.

Description of reference numerals:

1: first temperature sensor, 2: solenoid valve body, 3: spring, 4: iron core, 5: rubber head, 6: tray, 7: diaphragm, 8: gasket, 9: guide post, 10: compression spring, 11: nut, 12 cold water flow passage, 13: hot water flow passage, 12-1: cold water outlet, 12-2: cold water inlet, 13-1: hot water outlet, 13-2: hot water inlet, 14: first water spot, 15: second water usage point, 16: intelligent controller, 17: mixing valve, 18: master, 19: circulating water pump, 20: water flow rate sensor, 21: second temperature sensor, 100: an intelligent electric valve, wherein A is a set temperature curve, B: temperature curve of effluent water of prior art, C: the invention provides an outlet water temperature curve of a zero-cold water system.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.