CN116242028A - Zero cold water module and burner - Google Patents

Abstract

The application relates to the technical field of burners, and provides a zero cold water module and a burner with the zero cold water module. The zero cooling water module at least comprises a heat storage unit, a bathroom water outlet pipe, a bathroom water return pipe and a first switching device. Because the heat storage unit with the heat storage function is used, the heat storage unit and the user side can form an independent circulation loop for heating the bathroom water, so that the frequent starting of the burner is avoided, and the service life of the burner is prolonged. Meanwhile, as the independent circulation loop is connected with the water supply pipe, the water in the circulation loop is the running water, the frequency of cleaning the heat storage unit is reduced, and the quality of the bathroom water is improved.

Description

Zero cold water module and burner

Technical Field

The application relates to the technical field of burners, in particular to a zero cold water module and a burner with the same.

Background

In the related art, some gas heating water heater are all circularly heated by bringing the cold water remained in the hot water pipe into the gas heating water heater again through the circulating pump, so as to realize the zero cold water effect. In the process, the gas heating water heater needs to be frequently started to circularly heat, so that the service life of relevant parts in the gas heating water heater is reduced, and the gas consumption of the gas heating water heater is increased. In order to solve the problem of frequently starting the gas heating water heater, the water tank is arranged outside the other gas heating water heater, and because the water tank stores hot water with a certain volume of heat, cold water remained in the hot water pipe can be brought into the water tank again for cyclic heating, and the gas heating water heater is not needed to be passed through. However, after the water tank is used for a long time, impurities such as bacteria, microorganisms, sediment and the like can be generated in the water tank, so that the quality of the bathroom water is affected, cleaning and maintenance are required to be carried out regularly, and the water tank is inconvenient to use.

Disclosure of Invention

Based on the above, it is necessary to provide a zero-cooling water module and a burner with the same, so as to solve the problems of frequent start of the burner and need of regular cleaning of the hot water storage tank, and improve the service life of the burner and the quality of the bathroom water.

According to one aspect of the present application, embodiments provide a zero-cold water module for use in a burner, the burner including a heat exchange device, the zero-cold water module comprising:

the heat storage unit is communicated with the heat exchange device, so that fluid flows to the heat storage unit after flowing through the heat exchange device for heating, and the heat storage unit stores heat; the heat storage unit is provided with a heat storage water inlet pipe and a heat storage water outlet pipe which are communicated with the heat exchange device, and the heat storage water outlet pipe is connected with a water supply pipe;

the bathroom water outlet pipe and the bathroom water return pipe are connected with the heat storage water inlet pipe;

a first switching device configured to connect or disconnect an inlet of the bathroom water outlet pipe with an outlet of the heat storage water outlet pipe;

a drive structure located in a fluid path of fluid flowing into or out of the heat storage unit for driving the fluid to pass through the heat storage unit to exchange heat with the heat storage unit; and

And the controller is used for controlling the first switching device and the driving structure.

Among the above-mentioned zero cold water module, zero cold water module includes heat storage unit, bathroom outlet pipe, bathroom wet return at least, and first auto-change over device. Because the heat storage unit with the heat storage function is used, the heat storage unit and the user side can form an independent circulation loop for heating the bathroom water, so that the frequent starting of the burner is avoided, and the service life of the burner is prolonged. Meanwhile, as the independent circulation loop is connected with the water supply pipe, the water in the circulation loop is the running water, the frequency of cleaning the heat storage unit is reduced, and the quality of the bathroom water is improved.

In one embodiment, the heat storage unit comprises a shell, a heat exchanger and a phase change material, wherein the heat exchanger and the phase change material are arranged in the shell, and the phase change material is filled between the heat exchanger and the shell;

the heat exchanger is provided with a water inlet end communicated with the heat storage water inlet pipe and a water outlet end communicated with the heat storage water outlet pipe;

the water inlet end of the heat exchanger is connected with the heat storage water inlet pipe, and the water outlet end of the heat exchanger is connected with the heat storage water outlet pipe. Because the heat storage capacity of the phase-change heat storage material is higher than the specific volume heat of water, the volume is smaller than that of a heat storage water mode, hot water is not directly heated and stored, and scale is not generated due to high-temperature storage.

In one embodiment, the first switching device is provided with a first switching port and a second switching port;

the first switching port is communicated with the outlet of the heat storage water outlet pipe, and the second switching port is communicated with the inlet of the bathroom water outlet pipe;

wherein the first switching device has a first state; the first switching device is in the first state, and the first switching port is communicated with the second switching port. Therefore, by arranging the first switching device with the switching port, whether the heat storage water outlet pipe is communicated with the bathroom water outlet pipe or not can be selected, so that an independent circulation loop for heating bathroom water can be formed between the heat storage unit and the user side.

In one embodiment, the heat storage water outlet pipe is provided with a bypass pipe;

the first switching port is communicated with the outlet of the heat storage water outlet pipe through the bypass pipe. Therefore, the first switching port can be communicated with the outlet of the heat storage water outlet pipe by arranging the bypass pipe.

In one embodiment, the zero-cold water module further comprises a second switching device positioned between the second switching port and the inlet of the bathroom water outlet pipe, wherein the second switching device is provided with a fourth switching port, a fifth switching port and a sixth switching port;

The fourth switching port is communicated with the second switching port, the fifth switching port is communicated with the inlet of the bathroom water outlet pipe, and the sixth switching port is communicated with the bathroom outlet end of the heat exchange device;

wherein the second switching device has a second state and a third state; the second switching device is in the second state, and the fourth switching port is communicated with the fifth switching port; the second switching device is in the third state, and the fifth switching port is communicated with the sixth switching port. By arranging the second switching device, the bathroom water can be heated through the heat exchange device. Thus, the heating mode of the bathroom water can be switched according to the actual situation.

In one embodiment, the zero-cold water module is further provided with a third switching device, and the third switching device is provided with a seventh switching port and an eighth switching port;

the seventh switching port is communicated with the outlet of the heat storage water outlet pipe, and the eighth switching port is communicated with the outlet of the water supply pipe;

wherein the third switching device has a fourth state; the third switching device is in the fourth state, and the seventh switching port is communicated with the eighth switching port. Therefore, by arranging the third switching device, whether the water supply pipe is connected to an independent circulation loop formed between the heat storage unit and the user side for heating the bathroom water is controlled.

In one embodiment, the first switching device is further provided with a third switching port communicated with the inlet of the heat storage water inlet pipe, and the third switching device is further provided with a ninth switching port communicated with the bathroom inlet end of the heat exchange device;

wherein the first switching device further has a fifth state, the second switching device further has a sixth state, and the third switching device further has a seventh state; the first switching device is in the fifth state, the second switching device is in the sixth state, the third switching device is in the seventh state, the third switching port is communicated with the second switching port, the fourth switching port is communicated with the sixth switching port, and the seventh switching port is communicated with the ninth switching port. Therefore, different circulation loops can be selectively switched and formed, and the process of heat storage of the heat storage unit or heating of bathroom water by the heat storage unit is realized.

In one embodiment, the third switching device further has an eighth state;

the third switching device is in the eighth state, and the eighth switching port is communicated with the ninth switching port. Therefore, whether the water supply pipe is connected to the bathroom inlet end of the heat exchange device or not can be controlled.

In one embodiment, the zero-cold water module further comprises a first detection structure;

the first detection structure is arranged on the heat storage unit and is used for detecting the heat storage temperature in the heat storage unit. So, can judge through first detection structure that the heat accumulation temperature in the heat accumulation unit reaches the user demand.

In one embodiment, the zero-cold water module further comprises a second detection structure;

the second detection structure is arranged on the heat storage water outlet pipe and is used for detecting the temperature of fluid in the heat storage water outlet pipe. Therefore, whether the temperature of the fluid in the heat storage water outlet pipe reaches the use requirement can be judged through the second detection structure.

In one embodiment, the zero-cold water module further comprises a third detection structure;

the third detection structure is arranged on the bathroom water outlet pipe and is used for detecting the temperature of fluid in the bathroom water outlet pipe. Therefore, whether the temperature of the fluid in the water outlet pipe of the bathroom reaches the use requirement or not can be judged through the third detection structure.

In one embodiment, the zero-cold water module further comprises a buffer mixing tank;

the buffer mixing water tank is arranged on the bathroom water outlet pipe in series and is used for mixing fluid flowing into the bathroom water outlet pipe. Thus, the temperature difference fluctuation of the fluid flowing into the bathroom outlet pipe can be reduced.

According to another aspect of the present application, embodiments of the present application provide a burner comprising the zero-cold water module described above. Therefore, the zero cold water module is of an external structure, is convenient to install on the burner, solves the problems that the burner is frequently started and the heat storage water tank needs to be cleaned regularly, and improves the service life of the burner and the quality of bathroom water.

Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the application.

Drawings

FIG. 1 is a schematic diagram of a configuration using a zero cold water module in one implementation of the example of the present application;

fig. 2 is a schematic structural diagram of a heat storage unit in an implementation manner of the embodiment of the present application.

Reference numerals simply denote:

a zero cooling water module 10, a module water outlet pipe 11 and a module water inlet pipe 12;

the heat storage unit 100, the heat storage water inlet pipe 101, the heat storage water outlet pipe 102, the water supply pipe 103, the bypass pipe 104, the safety pressure relief valve 105, the shell 110, the heat exchanger 120, the water inlet end 121, the water outlet end 122, the phase change material 130 and the heat preservation material 140;

bathroom outlet pipe 210, bathroom return pipe 220;

a first switching device 300, a first switching port 310, a second switching port 320, and a third switching port 330;

A drive structure 400;

a controller 500;

a second switching device 600, a fourth switching port 610, a fifth switching port 620, a sixth switching port 630;

a third switching device 700, a seventh switching port 710, an eighth switching port 720, and a ninth switching port 730;

first detection structure 810, second detection structure 820, third detection structure 830, fourth detection structure 840;

buffer mixing tank 900;

a heat exchange device 20, a bathroom outlet end 21, a bathroom inlet end 22, a first heating water inlet end 23 and a first heating water outlet end 24;

a main heat exchanger 30, a second heating water inlet end 31, and a second heating water outlet end 32;

a burner 40, a gas inlet pipe 41 and a gas proportional valve 42;

a blower 50;

a heating water pump 60;

a water flow sensor 70;

a heating water flow direction switching device 80;

a heating water inlet pipe 91 and a heating water outlet pipe 92.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, a detailed description of embodiments accompanied with figures is provided below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. The embodiments of the present application may be implemented in many other ways than those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the invention, so that the embodiments of the present application are not limited to the specific embodiments disclosed below.

It will be appreciated that the terms "first," "second," and the like, as used herein, may be used to describe various terms, and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. However, unless specifically stated otherwise, these terms are not limited by these terms. These terms are only used to distinguish one term from another. For example, the first switching device, the second switching device, and the third switching device are different switching devices, and the first detection structure, the second detection structure, and the third detection structure are different detection structures without departing from the scope of the present application. In the description of the embodiments of the present application, the meaning of "a plurality", "a number" or "a plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In the description of the embodiments of the present application, 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; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of embodiments of the present application, unless explicitly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediary. Moreover, a first feature being "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature level is higher than the second feature level. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature level is less than the second feature level.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

A gas heating water heater is a water heating device for heating and supplying domestic hot water indoors. The gas heating water heater basically has the heating function and the bathroom hot water function. Wherein, some gas heating water heater or traditional gas heating water heater can set up one-way four-way valve assembly at water end to realize the switch of different circulation loops, for example can bring the cold water remained in the hot water pipe into the gas heating water heater again for circulation heating through the circulation pump, the water tap has the advantages that when the water tap is started by a user, hot water flows out, the zero cold water effect is realized, and the problems that when a large amount of cold water is needed to be discharged in bathroom, hot water exists, and when the water tap is reused after water is shut off in the middle of use, the bathroom water becomes cold or overheated are solved.

The inventor of the application notes that in the process, the hot water of the bathroom hot water pipe and the circulating water pipe can emit heat to surrounding walls or spaces in a short time, so that the temperature of the hot water in the pipeline is quickly reduced, the temperature of the water in the bathroom water pipe can be ensured by re-circulating heating, and then the gas heating water heater is required to be frequently started for circulating heating, so that the service life of relevant parts in the gas heating water heater is reduced, and the gas consumption of the gas heating water heater is increased. Moreover, noise generated by frequent starting also affects the user experience.

In order to solve the problem of frequently starting the gas heating water heater, the water tank is arranged outside the other gas heating water heater, and because the water tank stores hot water with a certain volume of heat, cold water remained in the hot water pipe can be brought into the water tank again for cyclic heating, and the gas heating water heater is not needed to be passed through. However, after the water tank is used for a long time, impurities such as bacteria, microorganisms, sediment and the like can be generated in the water tank, so that the quality of the bathroom water is affected, the health of a user is endangered, cleaning and maintenance are required regularly, and the water tank is inconvenient to use.

Based on the above consideration, in order to solve the problems of frequent starting of the burner and poor quality of bathroom water, the inventor has conducted intensive studies and designed an external zero-cooling water module applied to the burner.

It should be noted that, the zero-cooling water module disclosed in the embodiment of the application can be used in a burner such as a gas heating water heater, so that the service life of the burner can be prolonged while the zero-cooling water function is realized. The following description will take the application of the zero cold water module in the gas heating water heater as an example.

FIG. 1 shows a schematic diagram of a configuration using a zero cold water module 10 in one implementation of the examples of the present application; for convenience of explanation, only portions relevant to the embodiments of the present application are shown.

As shown in fig. 1, the embodiment of the present application provides a zero cold water module 10 for use in a gas heating water heater. The gas heating water heater includes a heat exchanging device 20. The zero-cooling water module 10 includes a heat storage unit 100, a bathroom outlet pipe 210, a bathroom return pipe 220, a first switching device 300, a driving structure 400, and a controller 500. The heat storage unit 100 is in communication with the heat exchange device 20, so that the fluid flows to the heat storage unit 100 after being heated in the heat exchange device 20, thereby storing heat in the heat storage unit 100. The heat storage unit 100 is provided with a heat storage water inlet pipe 101 and a heat storage water outlet pipe 102 which are communicated with the heat exchange device 20, and the heat storage water outlet pipe 102 is connected with a water supply pipe 103. The bathroom return pipe 220 is connected with the heat storage water inlet pipe 101. The first switching device 300 is configured to connect or disconnect the inlet of the bathroom outlet pipe 210 with the outlet of the heat storage outlet pipe 102. The driving structure 400 is located on a fluid path in which fluid flows into or out of the heat storage unit 100 for driving the fluid to pass through the heat storage unit 100 to exchange heat with the heat storage unit 100. The controller 500 is used for controlling the first switching device 300 and the driving structure 400.

Therefore, the heat storage unit 100 with the heat storage function and the user side can form an independent circulation loop for heating the bathroom water, so that the frequent starting of the burner is avoided, and the service life of the burner is prolonged. Meanwhile, as the independent circulation loop is connected with the water supply pipe 103, water in the circulation loop is running water, so that the frequency of cleaning the heat storage unit 100 is reduced, and the quality of bathroom water is improved.

Fig. 2 shows a schematic structural view of the heat storage unit 100 in one implementation of the embodiment of the present application; for convenience of explanation, only portions relevant to the embodiments of the present application are shown.

In some embodiments, referring to fig. 2 in combination with fig. 1, the heat storage unit 100 includes a housing 110, a heat exchanger 120, and a phase change material 130, the heat exchanger 120 and the phase change material 130 are disposed in the housing 110, and the phase change material 130 is filled between the heat exchanger 120 and the housing 110. The heat exchanger 120 has a water inlet end 121 in communication with the heat storage water inlet pipe 101 and a water outlet end 122 in communication with the heat storage water outlet pipe 102. That is, the water inlet end 121 of the heat exchanger 120 is connected to the heat storage water inlet pipe 101, and the water outlet end 122 of the heat exchanger 120 is connected to the heat storage water outlet pipe 102. Because the heat storage capacity of the phase-change heat storage material is higher than the specific volume heat of water, the volume is smaller than that of a heat storage water mode, hot water is not directly heated and stored, and scale is not generated due to high-temperature storage. Meanwhile, the heat exchanger 120 is used for heat exchange of the running water, so that the heat storage unit 100 is free of an inner container, and the problems that the inner container in a water tank is difficult to clean and dead water exists in the inner container in the related art are avoided. In particular to some embodiments, the heat exchanger 120 may employ a fin-coil heat exchanger 120 to further extend the flow time of fluid within the heat storage unit 100, enabling a sufficient heat exchange process. In particular, in other embodiments, the heat insulation material 140 is wrapped around the casing 110 to further improve the heat insulation effect of the heat storage unit 100. In particular to other embodiments, a pressure relief branch may be further disposed at the position of the heat storage water outlet pipe 102 near the water outlet end 122 of the heat exchanger 120, and a safety pressure relief valve 105 may be disposed on the pressure relief branch, so as to improve the safety performance of the heat storage unit 100.

In some embodiments, referring to fig. 1, the first switching device 300 is provided with a first switching port 310 and a second switching port 320. The first switching port 310 communicates with the outlet of the heat storage outlet pipe 102 and the second switching port 320 communicates with the inlet of the bathroom outlet pipe 210. Wherein the first switching device 300 has a first state; the first switching device 300 is in a first state, and the first switching port 310 communicates with the second switching port 320. That is, when the first switching port 310 is communicated with the second switching port 320, the outlet of the heat storage water outlet pipe 102 is communicated with the inlet of the bathroom water outlet pipe 210, and an independent circulation loop for heating the bathroom water may be formed between the heat storage unit 100 and the user side. Thus, by providing the first switching device 300 with a switching port, it is possible to select whether to connect the heat storage water outlet pipe 102 with the bathroom water outlet pipe 210 to operate an independent circulation loop that can realize a zero cold water function.

In some embodiments, referring to fig. 1, a bypass pipe 104 is disposed on the heat storage water outlet pipe 102. The first switching port 310 communicates with the outlet of the heat storage water outlet pipe 102 through the bypass pipe 104. In this way, by providing the bypass pipe 104, the first switching port 310 can be communicated with the outlet of the heat storage water outlet pipe 102, and the structure is simple.

In some embodiments, please continue to refer to fig. 1, the zero-cold water module 10 further includes a second switching device 600 located between the second switching port 320 and the inlet of the bathroom outlet pipe 210, the second switching device 600 being provided with a fourth switching port 610, a fifth switching port 620 and a sixth switching port 630; the fourth switching port 610 communicates with the second switching port 320, the fifth switching port 620 communicates with the inlet of the sanitary outlet pipe 210, and the sixth switching port 630 communicates with the sanitary outlet end 21 of the heat exchange unit 20. Wherein the second switching device 600 has a second state and a third state; the second switching device 600 is in the second state, and the fourth switching port 610 communicates with the fifth switching port 620; the second switching device 600 is in the third state, and the fifth switching port 620 communicates with the sixth switching port 630. That is, by providing the second switching device 600 having three switching ports, the bathroom water can be heated not only by the heat storage unit 100 but also by the heat exchanging means 20. When the bathroom water is heated by the heat storage unit 100, the first switching device 300 is in the first state, the second switching device 600 is in the second state, the first switching port 310 is communicated with the second switching port 320, the fourth switching port 610 is communicated with the fifth switching port 620, and the bathroom water is circularly heated by sequentially passing through the bathroom water outlet pipe 210, the bathroom water return pipe 220, the heat storage water inlet pipe 101, the heat exchanger 120, the heat storage water outlet pipe 102, the bypass pipe 104, the first switching device 300, the second switching device 600 and the bathroom water outlet pipe 210, thereby realizing the zero cold water function. When the bathroom water is heated by the heat exchange device 20, the second switching device 600 is in the third state, the fifth switching port 620 is communicated with the sixth switching port 630, and the bathroom water heated in the heat exchange device 20 flows out from the bathroom outlet port 21 of the heat exchange device 20 and directly flows into the bathroom outlet pipe 210. Thus, the heating mode of the bathroom water can be switched according to the actual situation.

In some embodiments, please continue to refer to fig. 1, the zero-cold water module 10 is further provided with a third switching device 700, and the third switching device 700 is provided with a seventh switching port 710 and an eighth switching port 720; the seventh switching port 710 communicates with the outlet of the heat storage water outlet pipe 102, and the eighth switching port 720 communicates with the outlet of the water supply pipe 103. Wherein the third switching device 700 has a fourth state; the third switching device 700 is in the fourth state, and the seventh switching port 710 communicates with the eighth switching port 720. In this way, by providing the third switching device 700, control is achieved on whether the water supply pipe 103 is connected to the independent circulation loop formed between the heat storage unit 100 and the user side for heating the bathroom water.

In some embodiments, referring to fig. 1, the first switching device 300 is further provided with a third switching port 330 communicating with the inlet of the heat storage water inlet pipe 101, and the third switching device 700 is further provided with a ninth switching port 730 communicating with the bathroom inlet end 22 of the heat exchange device 20. Wherein the first switching device 300 further has a fifth state, the second switching device 600 further has a sixth state, and the third switching device 700 further has a seventh state; the first switching device 300 is in the fifth state, the second switching device 600 is in the sixth state, and the third switching device 700 is in the seventh state, the third switching port 330 communicates with the second switching port 320, the fourth switching port 610 communicates with the sixth switching port 630, and the seventh switching port 710 communicates with the ninth switching port 730. That is, the first switching device 300 and the third switching device 700 each have three switching ports. In this manner, by providing the first switching device 300, the second switching device 600, and the third switching device 700 each having three switching ports, it is possible to selectively switch to form different circulation loops, thereby realizing a process of storing heat of the heat storage unit 100 or heating bathroom water by the heat storage unit 100. When the heat storage unit 100 stores heat, the first switching device 300 is in the sixth state, the second switching device 600, the third switching device 700 is in the seventh state, the third switching port 330 is communicated with the second switching port 320, the seventh switching port 710 is communicated with the ninth switching port 730, and the water in the water supply pipe 103 circulates sequentially through the heat storage water inlet pipe 101, the heat exchanger 120, the heat storage water outlet pipe 102, the third switching device 700, the heat exchange device 20, the second switching device 600, the first switching device 300 and the heat storage water inlet pipe 101, the water heated by the heat exchange device 20 exchanges heat with the heat exchanger 120 in the heat storage unit 100, and the heat storage unit 100 stores heat. When the heat storage unit 100 heats the bathroom water, the third switching device 700 is in the fourth state, the seventh switching port 710 is communicated with the eighth switching port 720, the water supply pipe 103 is connected to the inlet of the bypass pipe 104 of the heat storage water outlet pipe 102, so as to realize the water activating function of the water storage unit, and the states and the loop conditions of the other switching devices can refer to the content of the foregoing embodiments, which is not described herein again.

In some embodiments, please continue to refer to fig. 1, the third switching device 700 further has an eighth state. The third switching device 700 is in the eighth state, and the eighth switching port 720 communicates with the ninth switching port 730. That is, the flowing water enters the heat exchange device 20 through the water supply pipe 103, flows out of the heat exchange device 20 into the bathroom outlet pipe 210, and is heated by the heat exchange device 20. In this way, it is possible to control whether the water supply pipe 103 is connected to the bathroom inlet 22 of the heat exchange device 20.

In some embodiments, referring to fig. 1, the zero-cold water module 10 further includes a first detection structure 810. The first detection structure 810 is disposed in the heat storage unit 100 and is configured to detect a heat storage temperature in the heat storage unit 100. In this manner, it may be determined by the first detecting structure 810 whether the heat storage temperature in the heat storage unit 100 reaches the use requirement, and thus determine whether to perform the heat storage process of the heat storage unit 100. In particular, in some embodiments, referring to fig. 1, the first detecting structure 810 is disposed on a side far from the heat storage water inlet pipe 101 and the heat storage water outlet pipe 102, so as to improve accuracy of heat storage temperature measurement. In particular, in other embodiments, referring to fig. 1, the zero-cold water module 10 further includes a fourth detecting structure 840 provided in the heat storage unit 100 for detecting the heat storage temperature in the heat storage unit 100. Alternatively, the fourth sensing structure 840 may be provided at a side close to the heat storage water inlet pipe 101 and the heat storage water outlet pipe 102. The first detection structure 810 and the fourth detection structure 840 jointly detect the heat storage temperature in the heat storage unit 100, and detection accuracy is improved.

In some embodiments, referring to fig. 1, the zero-cold water module 10 further includes a second detecting structure 820, where the second detecting structure 820 is disposed on the heat storage water outlet pipe 102 and is used for detecting the temperature of the fluid in the heat storage water outlet pipe 102. In this way, the second detecting structure 820 can determine whether the temperature of the fluid in the heat storage outlet pipe 102 reaches the use requirement, and thus determine whether to perform the heat storage process of the heat storage unit 100.

In some embodiments, referring to fig. 1, the zero-cold water module 10 further includes a third detection structure 830. The third detecting structure 830 is disposed on the bathroom outlet pipe 210, and is configured to detect a temperature of the fluid in the bathroom outlet pipe 210. In this way, the third detecting structure 830 can determine whether the temperature of the fluid in the toilet water outlet pipe 210 reaches the use requirement, and determine whether to heat the toilet water by using the heat storage unit 100.

In some embodiments, referring to fig. 1, a driving structure 400 is disposed on the heat storage water outlet pipe 102. Of course, in other embodiments, the driving structure 400 may be disposed on the heat storage water inlet pipe 101. Fig. 1 illustrates a situation that the driving structure 400 is disposed on the heat storage water outlet pipe 102, which may be specifically set according to a requirement of use, which is not specifically limited in the embodiment of the present application. Alternatively, the driving structure 400 may be provided as a water pump.

In some embodiments, referring still to fig. 1, the zero-cold water module 10 further includes a buffer mixing tank 900. The buffer mixing tank 900 is disposed on the bathroom outlet pipe 210 in series for mixing the fluid flowing into the bathroom outlet pipe 210. In this way, temperature differential fluctuations of the fluid flowing into the sanitary outlet pipe 210 may be reduced.

In some embodiments, referring to fig. 1, the controller 500 may further control the first switching device 300, the second switching device 600 and the third switching device 700 according to the first detecting structure 810, the second detecting structure 820, the third detecting structure 830 and the fourth detecting structure 840 to obtain different circulation loops to meet the requirement.

Based on the same inventive concept, the embodiment of the present application also provides a burner, comprising the zero cold water module 10. Therefore, the zero cold water module 10 is of an external structure, is convenient to install on the burner, solves the problems that the burner is frequently started and the heat storage water tank needs to be cleaned regularly, and prolongs the service life of the burner and improves the quality of bathroom water. The following description will take a gas heating water heater as an example.

In some embodiments, referring to FIG. 1, the burner includes a heat exchange device 20, a main heat exchanger 30120, a burner 40, a fan 50, a heating water pump 60, a water flow sensor 70, and a heating water flow direction switching device 80. The heat exchanging arrangement 20 is a plate heat exchanger 120 having a bathroom outlet end 21 and a bathroom inlet end 22 in communication with each other, and a first heating water inlet end 23 and a first heating water outlet end 24 in communication with each other. The main heat exchanger 30120 has a second heating water inlet end 31 and a second heating water outlet end 32 in communication with each other. The burner 40 is used for heating hot water in the main heat exchanger 30120, the burner 40 is connected with a gas inlet pipe 41, and a gas proportional valve 42 is arranged on the gas inlet pipe 41. The blower 50 is used to discharge the exhaust gas generated from the burner 40 to the outside. The heating water pump 60 is provided in series to the heating water inlet pipe 91. The water flow sensor 70 is provided on the line of the fluid flowing into the bathroom inlet 22 of the heat exchange device 20 for detecting whether there is fluid flowing into the heat exchange device 20. The heating water flow direction switching device 80 is arranged on the heating water outlet pipe 92 and is connected with the first heating water inlet end 23 of the heat exchange device 20, and the first heating water outlet end 24 of the heat exchange device 20 is connected with a bypass of the heating water inlet pipe 91.

The zero cold water module 10 provided in the embodiment of the application is connected with the bathroom inlet end 22 of the heat exchange device 20 through the module water outlet pipe 11, and is connected with the bathroom outlet end 21 of the heat exchange device 20 through the module water inlet pipe 12. The bathroom water outlet pipe 210 of the zero cold water module 10 is directly connected to a water terminal and is communicated with the bathroom water return pipe 220 to form a loop.

Therefore, the gas heating water heater in the embodiment of the application has three working modes, namely a bathroom mode, a heat storage mode and a zero cold water mode.

The three modes of operation provided in the examples of the present application are further described below with reference to the implementation of some of the foregoing examples.

Referring to fig. 1, when in the bathroom mode, the bathroom water is heated by the heat exchange device 20. The bathroom mode is an initial default mode. At this time, the controller 500 in the zero-cold water module 10 will control the first switching device 300 to be in the first state, the first switching port 310 to be communicated with the second switching port 320, the second switching device 600 to be in the third state, the fifth switching port 620 to be communicated with the sixth switching port 630, the third switching device 700 to be in the eighth state, the eighth switching port 720 to be communicated with the ninth switching port 730, the driving structure 400 to be closed, and none of the first detecting structure 810, the second detecting structure 820, the third detecting structure 830 and the fourth detecting structure 840 to participate in the monitoring. The connection or disconnection of each pipeline can refer to the content of the foregoing embodiment, and will not be described herein.

When a user turns on the water terminal tap, bathroom water flows into the bathroom inlet end 22 of the heat exchange device 20 from the water supply pipe 103, the water flow sensor 70 detects that water flows through, and the heating water flows to the switching device 80 to cut off the heating function and enter the bathroom function. The heating water inlet pipe, the main heat exchanger 30120, the heating water outlet pipe and the heat exchange device 20 form a circulation loop. The fuel gas proportional valve 42 is opened, fuel gas enters the combustor 40 through the fuel gas proportional valve 42 to burn, high-temperature flue gas after burning passes through the flue gas of the main heat exchanger 30120, the main heat exchanger 30120 absorbs heat and transfers the heat to heating water at the water side of the main heat exchanger 30120, and the flue gas after absorbing the heat is discharged outside the fuel gas heating water heater under the driving of the fan 50. Meanwhile, the heating water enters the second heating water inlet port 31 of the main heat exchanger 30120 through the heating water inlet pipe 91 and flows out of the second heating water outlet port 32 of the main heat exchanger 30120 by being driven by the heating water pump 60. The heating water absorbs and heats the heat generated by the combustion of the fuel gas in the main heat exchanger 30120, then enters the heat exchange device 20, transfers the heat to the bathroom water in the heat exchange device 20, and continuously circulates the process. The bathroom water absorbs heat and heats up in the heat exchange device 20, reaches the target temperature, flows out from the bathroom outlet end 21 of the heat exchange device 20, sequentially passes through the sixth switching port 630 and the fifth switching port 620, flows into the bathroom outlet pipe 210, and flows into the water terminal. The buffer mixing water tank 900 arranged on the bathroom water outlet pipe 210 can mix the inflow bathroom water with the water in the buffer mixing water tank 900, so as to reduce temperature difference fluctuation.

With continued reference to fig. 1, when in the heat storage mode, the controller 500 in the zero-cold water module 10 controls the first switching device 300 to be in the fifth state, the second switching device 600 to be in the sixth state, the third switching device 700 to be in the seventh state, the third switching port 330 to be communicated with the second switching port 320, the fourth switching port 610 to be communicated with the sixth switching port 630, the seventh switching port 710 to be communicated with the ninth switching port 730, the driving structure 400 to be opened, and the first detecting structure 810, the second detecting structure 820, the third detecting structure 830 and the fourth detecting structure 840 to participate in monitoring. The connection or disconnection of each pipeline can refer to the content of the foregoing embodiment, and will not be described herein.

When the temperature signals of the first and fourth sensing structures 810 and 840 feed back that the current heat storage temperature of the heat storage unit 100 is lower than the set temperature, indicating that the heat storage of the heat storage unit 100 is insufficient, the controller 500 will control the first, second and third switching devices 300, 600 and 700 to be in the above-described state. Under the driving of the driving structure 400, the water in the pipeline flows into the bathroom inlet 22 of the heat exchange device 20, the water flow sensor 70 detects that the water flows through, the bathroom mode is opened by the whole device, and the heating process of the heating water can refer to the foregoing and will not be repeated herein. Meanwhile, under the driving of the driving structure 400, the water in the pipeline enters the bathroom inlet end 22 of the heat exchange device 20, then absorbs the heat of the heating water to heat and raise the temperature, flows out from the bathroom outlet end 21 of the heat exchange device 20, sequentially passes through the sixth switching port 630, the fourth switching port 610, the second switching port 320 and the third switching port 330, enters the heat exchanger 120 in the heat storage unit 100 through the heat storage water inlet pipe 101, transfers the heat to the phase change material 130 through the heat exchanger 120, enables the phase change material 130 to absorb and store the heat, flows out from the heat exchanger 120 to the driving structure 400 on the heat storage water outlet pipe 102, and repeats the above steps. When the second detection structure 820 detects that the outlet water temperature reaches the set temperature, the heat storage is finished, and the whole device returns to the initial default mode, namely the bathroom mode.

With continued reference to fig. 1, when in the zero-cold water mode, the controller 500 in the zero-cold water module 10 controls the third switching device 700 to be in the fourth state, the seventh switching port 710 communicates with the eighth switching port 720, the second switching device 600 is controlled to be in the second state, the fourth switching port 610 communicates with the fifth switching port 620, the first switching device 300 is in the first state, the first switching port 310 communicates with the second switching port 320, and the driving structure 400 is controlled to be in the activated state, and the third detecting structure 830 participates in monitoring. The connection or disconnection of each pipeline can refer to the content of the foregoing embodiment, and will not be described herein.

When the third detecting structure 830 feeds back that the temperature of the water in the current bathroom outlet pipe 210 is lower than the set temperature, the controller 500 will control the first switching device 300, the second switching device 600 and the third switching device 700 to be in the above-mentioned states and activate the driving structure 400. Driven by the driving structure 400, the water in the pipeline will pass through the bypass pipe 104, the first switching port 310, the second switching port 320, the fourth switching port 610, and the fifth switching port 620 in sequence and enter the bathroom outlet pipe 210. The buffer mixing water tank 900 arranged on the bathroom water outlet pipe 210 can mix the inflow bathroom water with the water in the buffer mixing water tank 900, so as to reduce temperature difference fluctuation. The water in the pipeline flows into the heat storage water inlet pipe 101 of the heat storage unit 100 from the bathroom water outlet pipe 210 and the bathroom water return pipe 220 in turn, enters the heat exchanger 120 in the heat storage unit 100, absorbs and heats the heat of the phase change material 130 through the heat exchanger 120, and flows back into the driving structure 400, and the steps are repeated. When the third detection structure 830 monitors that the temperature reaches the set temperature, the zero cold water mode is turned off and the overall device returns to the initial default mode, i.e., the bathroom mode.

In summary, the zero cooling water module 10 provided in the embodiment of the present application not only can solve the problem of frequently starting the gas heating water heater, but also can solve the problem that the zero cooling water system of the external heat storage water tank affects the quality of bathroom water and needs to be cleaned and maintained regularly, which brings inconvenience. Meanwhile, the zero cold water module 10 in the embodiment of the application stores heat in a phase-change heat storage mode, so that bathroom water is water, and the zero cold water module can be used in a gas heating water heater without a zero cold water function in the related art, and the gas heating water heater is not required to be replaced.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A zero-cooling water module (10) for use in a burner comprising a heat exchange device (20), characterized in that the zero-cooling water module (10) comprises:

a heat storage unit (100) which is communicated with the heat exchange device (20) so that fluid flows to the heat storage unit (100) after flowing through the heat exchange device (20) for heating, thereby storing heat in the heat storage unit (100); a heat storage water inlet pipe (101) and a heat storage water outlet pipe (102) which are communicated with the heat exchange device (20) are arranged on the heat storage unit (100), and the heat storage water outlet pipe (102) is connected with a water supply pipe (103);

a bathroom water outlet pipe (210) and a bathroom water return pipe (220), wherein the bathroom water return pipe (220) is connected with the heat storage water inlet pipe (101);

-a first switching device (300) configured to connect or disconnect an inlet of the bathroom outlet pipe (210) with an outlet of the heat storage outlet pipe (102);

-a driving structure (400), the driving structure (400) being located in a fluid path of a fluid flowing into or out of the heat storage unit (100) for driving the fluid to be able to pass through the heat storage unit (100) for heat exchange with the heat storage unit (100); and

-a controller (500), the controller (500) being adapted to control the first switching device (300) and the driving structure (400).

2. The zero-cold water module (10) of claim 1, wherein the heat storage unit (100) comprises a housing (110), a heat exchanger (120), and a phase change material (130), the heat exchanger (120) and the phase change material (130) being disposed within the housing (110), the phase change material (130) being filled between the heat exchanger (120) and the housing (110);

the heat exchanger (120) is provided with a water inlet end (121) communicated with the heat storage water inlet pipe (101) and a water outlet end (122) communicated with the heat storage water outlet pipe (102);

the water inlet end (121) of the heat exchanger (120) is connected with the heat storage water inlet pipe (101), and the water outlet end (122) of the heat exchanger (120) is connected with the heat storage water outlet pipe (102).

3. The zero-cold water module (10) according to claim 1, wherein the first switching device (300) is provided with a first switching port (310) and a second switching port (320);

the first switching port (310) is communicated with the outlet of the heat storage water outlet pipe (102), and the second switching port (320) is communicated with the inlet of the bathroom water outlet pipe (210);

wherein the first switching device (300) has a first state; the first switching device (300) is in the first state, and the first switching port (310) is in communication with the second switching port (320).

4. A zero-cold water module (10) according to claim 3, wherein the zero-cold water module (10) further comprises a second switching device (600) between the second switching port (320) and the inlet of the bathroom outlet pipe (210), the second switching device (600) being provided with a fourth switching port (610), a fifth switching port (620) and a sixth switching port (630);

the fourth switching port (610) is communicated with the second switching port (320), the fifth switching port (620) is communicated with an inlet of the bathroom water outlet pipe (210), and the sixth switching port (630) is communicated with a bathroom outlet end (21) of the heat exchange device (20);

wherein the second switching device (600) has a second state and a third state; -the second switching device (600) is in the second state, the fourth switching port (610) being in communication with the fifth switching port (620); the second switching device (600) is in the third state, and the fifth switching port (620) is in communication with the sixth switching port (630).

5. The zero-cold-water module (10) according to claim 4, characterized in that the zero-cold-water module (10) is further provided with a third switching device (700), the third switching device (700) being provided with a seventh switching port (710) and an eighth switching port (720);

The seventh switching port (710) is communicated with the outlet of the heat storage water outlet pipe (102), and the eighth switching port (720) is communicated with the outlet of the water supply pipe (103);

wherein the third switching device (700) has a fourth state; the third switching device (700) is in the fourth state, and the seventh switching port (710) communicates with the eighth switching port (720).

6. The zero-cold water module (10) according to claim 5, wherein the first switching device (300) is further provided with a third switching port (330) communicating with the inlet of the heat storage water inlet pipe (101), the third switching device (700) being further provided with a ninth switching port (730) communicating with the bathroom inlet end (22) of the heat exchange device (20);

wherein the first switching device (300) further has a fifth state, the second switching device (600) further has a sixth state, and the third switching device (700) further has a seventh state; the first switching device (300) is in the fifth state, the second switching device (600) is in the sixth state, and the third switching device (700) is in the seventh state, the third switching port (330) is in communication with the second switching port (320), the fourth switching port (610) is in communication with the sixth switching port (630), and the seventh switching port (710) is in communication with the ninth switching port (730).

7. The zero-cold water module (10) according to claim 6, wherein the third switching device (700) further has an eighth state;

the third switching device (700) is in the eighth state, and the eighth switching port (720) communicates with the ninth switching port (730).

8. The zero-cold-water module (10) of any one of claims 1-7, wherein the zero-cold-water module (10) further comprises a first detection structure (810), a second detection structure (820), and a third detection structure (830);

the first detection structure (810) is arranged on the heat storage unit (100) and is used for detecting the heat storage temperature in the heat storage unit (100);

the second detection structure (820) is arranged on the heat storage water outlet pipe (102) and is used for detecting the temperature of fluid in the heat storage water outlet pipe (102);

the third detection structure (830) is arranged on the bathroom water outlet pipe (210) and is used for detecting the temperature of fluid in the bathroom water outlet pipe (210).

9. The zero-cold water module (10) of any one of claims 1-7, wherein the zero-cold water module (10) further comprises a buffer mixing tank (800);

the buffer mixing water tank (900) is arranged on the bathroom water outlet pipe (210) in series and is used for mixing fluid flowing into the bathroom water outlet pipe (210).

10. A burner, characterized in that it comprises a zero-cooling water module (10) according to any one of claims 1 to 9.

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