CN222761132U - Gas water heater - Google Patents
Gas water heater Download PDFInfo
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- CN222761132U CN222761132U CN202421540336.2U CN202421540336U CN222761132U CN 222761132 U CN222761132 U CN 222761132U CN 202421540336 U CN202421540336 U CN 202421540336U CN 222761132 U CN222761132 U CN 222761132U
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Abstract
本实用新型公开了一种燃气热水器，该燃气热水器包括：换热器，具有进水口和出水口，进水口和出水口之间设置有用于流通水的换热流道；燃烧器，用于对流经换热流道的水进行加热；储水罐，包括用于容纳水的腔体，腔体具有入口和出口，出口与进水口相连通；连通管路，用于将出水口与入口相连；泵，设置于连通管路上，泵用于驱动连通管路内的水流动；加热组件，所述加热组件能用于加热所述储水罐。本申请能通过加热组件对储水罐进行加热保温，有效提高储水罐的保温效果，减少启动燃烧器对储水罐进行加热的频率，避免产生噪音干扰用户，即使在低温环境下，也能保证机器稳定运行，较佳地保证用户的使用体验。
The utility model discloses a gas water heater, which includes: a heat exchanger, having a water inlet and a water outlet, a heat exchange channel for circulating water is arranged between the water inlet and the water outlet; a burner, used to heat the water flowing through the heat exchange channel; a water storage tank, including a cavity for accommodating water, the cavity having an inlet and an outlet, the outlet being connected to the water inlet; a connecting pipeline, used to connect the water outlet with the inlet; a pump, arranged on the connecting pipeline, the pump is used to drive the water flow in the connecting pipeline; a heating component, the heating component can be used to heat the water storage tank. The present application can heat and keep the water storage tank warm by the heating component, effectively improve the insulation effect of the water storage tank, reduce the frequency of starting the burner to heat the water storage tank, avoid noise interference to the user, and ensure the stable operation of the machine even in a low temperature environment, and better ensure the user's experience.
Description
Technical Field
The utility model relates to the technical field of water heaters, in particular to a gas water heater.
Background
The existing water heater mainly comprises a gas water heater, a solar water heater, an air energy heat pump water heater, an electric water heater and the like. The gas water heater is used as a typical instant water heater and mainly comprises a fan, a combustion device, a heat exchanger and other parts.
The instant water heater typically starts heating when the user turns on the water terminal, the water heating time typically takes 25s-50s, or even longer, and the released cold water is typically wasted before the water is heated to a temperature that can be demanded by the user. On the whole, the hot water outlet of the instant water heater is slower, the waiting time of a user is long, and the waste of water resources is also easily caused in the waiting process.
In some specific application scenarios, for example, in kitchen water scenarios, a user often uses water a small amount for a short time and multiple times, for example, when washing dishes and rice, the user often needs to turn on and off the faucet multiple times. When the ambient temperature is low, the demand of users for instant heating of the water is more urgent.
In order to meet the requirement of users on instant heating of water, some schemes are provided in the prior art, for example, a kitchen baby can be additionally installed at a specific position such as a kitchen. The kitchen appliance is specifically a positive displacement electric water heater, and the hot water stored in the inner container of the kitchen appliance is utilized to meet the demand of a user on instant heating of water. The kitchen appliance occupies the installation space of a user, the kitchen appliance needs to be connected with a socket, and the kitchen appliance has the defects of an electric water heater, and if the water consumption of the user is very large, the kitchen appliance possibly cannot meet the water consumption requirement of the user.
In addition, other prior art improvements on gas water heaters are expected to meet the demand of water output instant heating of users, but more or less have problems.
In order to meet the needs of users for instant heating of the water, one possible way is to provide a water storage tank for storing hot water. However, the inventor of the present application has found that the water in the water storage tank is kept for a relatively short period of time when the water storage tank is in some low temperature conditions, such as a low temperature stationary environment, and a low temperature down-wind condition.
For this reason, it is necessary to provide a gas water heater that solves the above-mentioned problems.
Disclosure of utility model
Aiming at the defects existing in the prior art, the embodiment of the utility model provides the gas water heater, which effectively reduces the starting frequency of the machine, avoids noise from being generated to interfere with a user, can ensure the stable operation of the machine even in a low-temperature environment, and better ensures the use experience of the user.
The specific technical scheme of the embodiment of the utility model is as follows:
a gas water heater, the gas water heater comprising:
the heat exchanger is provided with a water inlet and a water outlet, and a heat exchange flow channel for circulating water is arranged between the water inlet and the water outlet;
a burner for heating water flowing through the heat exchange flow passage;
A water storage tank comprising a cavity for containing water, the cavity having an inlet and an outlet, the outlet being in communication with the water inlet;
The communication pipeline is used for connecting the water outlet with the inlet;
The pump is arranged on the communicating pipeline and is used for driving water in the communicating pipeline to flow;
And a heating assembly operable to heat the water storage tank.
In a preferred embodiment, the gas water heater further comprises a connecting pipe for connecting the outlet of the cavity with the water inlet of the heat exchanger, and the heating assembly is arranged on at least one of the water storage tank, the communicating pipe close to the water storage tank and the connecting pipe.
In a preferred embodiment, the communication line includes a first line connected to an inlet of the water storage tank, a second line connected to a water outlet of the heat exchanger, and a bypass line connected between the first line and the second line.
In a preferred embodiment, the gas water heater comprises a water inlet pipeline connected with the inlet of the water storage tank and a water outlet pipeline connected with the water outlet of the heat exchanger, wherein the first pipeline is part of the water inlet pipeline, and the second pipeline is part of the water outlet pipeline.
In a preferred embodiment, the heating assembly is disposed proximate to the inlet and/or outlet of the chamber.
In a preferred embodiment, the water storage tank comprises a water inlet joint connected with the inlet and a water outlet joint connected with the outlet, and the heating component is arranged on the outer surface of the water inlet joint and/or the water outlet joint.
In a preferred embodiment, the heating assembly is disposed on an outer surface of the water storage tank.
In a preferred embodiment, the heating assembly comprises at least one electric heating element, the power of the heating assembly being in the range of 20 watts to 50 watts.
In a preferred embodiment, the inlet of the cavity is provided with a water inlet joint for communicating the water inlet pipeline with the cavity, the outlet of the cavity is provided with a water outlet joint for communicating the connecting pipe with the cavity, the water inlet joint and/or the water outlet joint is provided with a mounting part for mounting the heating component, and when the heating component is started, the heating component can transfer heat to the water inlet joint and/or the water outlet joint through the mounting part.
In a preferred embodiment, the mounting portion includes a mounting hole into which the heating assembly can be inserted.
In a preferred embodiment, the heating assembly comprises at least a first electrical heating element arranged close to the water inlet connection and a second electrical heating element arranged close to the water outlet connection.
In a preferred embodiment, the heating assembly comprises a first electric heating element, a second electric heating element and a third electric heating element, and the first electric heating element, the second electric heating element and the third electric heating element are arranged beside the water inlet joint and the water outlet joint at intervals.
In a preferred embodiment, the gas water heater further comprises a control valve, the gas water heater comprises a normal water usage mode and an internal circulation mode, when the gas water heater is in the internal circulation mode, the control valve is in a first state to enable the internal circulation waterway to be in a communicating state, and when the gas water heater is in the normal water usage mode, the control valve is in a second state to enable water to flow into the gas water heater from the water inlet pipeline and flow out of the gas water heater from the water outlet pipeline.
In a preferred embodiment, a first connecting part is formed at the connecting position of the water inlet pipeline and the bypass pipeline, a second connecting part is formed at the connecting position of the water outlet pipeline and the bypass pipeline, and the control valve is arranged at any one of the bypass pipeline, the first connecting part and the second connecting part.
In a preferred embodiment, the gas water heater further comprises a first temperature detection device arranged at the downstream of the second connection part, when the temperature detected by the first temperature detection device meets a first temperature rising condition, the heating assembly is started, the pump is started for a certain period of time, and the water storage tank, the heat exchanger and water in the communication pipeline circulate to form an internal circulation waterway.
In a preferred embodiment, the gas water heater further comprises a second temperature detection device arranged on the cavity, when the temperature detected by the fifth temperature detection device meets a second temperature rising condition, the heating assembly is started, the pump is started for a certain period of time, and the water storage tank, the heat exchanger and water in the communication pipeline circulate to form an internal circulation waterway.
In a preferred embodiment, the water storage tank further comprises a heat exchange mechanism, wherein the heat exchange mechanism is used for circulating smoke, and the smoke entering the heat exchange mechanism can exchange heat with water contained in the cavity through the heat exchange mechanism.
In a preferred embodiment, the gas water heater further comprises a fan, an outlet of the fan is communicated with the heat exchange mechanism, and at least part of flue gas generated by the burner can be guided into the heat exchange mechanism through the fan after flowing through the heat exchanger.
In a preferred embodiment, the heat exchange mechanism comprises a heat exchange smoke tube, and the heat exchange smoke tube of the heat exchange mechanism penetrates through the cavity.
In a preferred embodiment, the heat exchange mechanism is provided with a flue gas outlet and a flue gas inlet, a cover plate is arranged at or near the flue gas outlet, the cover plate is used for opening the flue gas outlet when the fan is in a starting state, and the cover plate is used for closing the flue gas outlet when the fan is in a stopping state.
In a preferred embodiment, the volume of the cavity is between 1 liter and 3 liters.
In a preferred embodiment, the materials of the water storage tank, the heat exchanger and the communication pipe comprise stainless steel.
The technical scheme of the utility model has the following remarkable beneficial effects:
When the water storage tank of the gas water heater is under some special working conditions, such as a low-temperature environment, including a low-temperature standing environment, low-temperature back-flowing wind and other working conditions, the water in the water storage tank has shorter heat preservation time, and the water temperature of the water storage tank can be reduced to a lower temperature within 30 minutes. In order to maintain the water temperature in the water storage tank, a mode of starting the burner to perform combustion heat compensation is adopted. However, when the burner is frequently started to heat, noise can be generated to interfere a user, particularly when the user has a rest at night, the surrounding environment is relatively quiet, the gas water heater is frequently started to burn at the moment, meanwhile, the pump is started to perform internal circulation, the water temperature of an internal circulation waterway (particularly a water storage tank) is improved, the use experience of the user can be influenced with high probability, and the service life of the gas water heater can be further influenced.
According to the gas water heater provided by the embodiment of the application, the heating component is arranged on the water storage tank and/or on the pipeline (for example, the connecting pipe between the water outlet of the heat exchanger and the inlet of the water storage tank and between the water outlet of the water storage tank and the water inlet of the heat exchanger) close to the water storage tank, so that the cooling speed of the water storage tank is effectively slowed down, the heat preservation duration of the water storage tank is improved, the starting frequency of a machine can be effectively reduced, noise is prevented from being generated, the user is prevented from being disturbed, the stable operation of the machine is ensured even in a low-temperature environment, and the use experience of the user is better ensured.
Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. Those skilled in the art with access to the teachings of the present utility model can select a variety of possible shapes and scale sizes to practice the present utility model as the case may be.
FIG. 1 is a schematic diagram of a gas water heater according to an embodiment of the present application;
FIG. 2 is a schematic diagram showing a relative positional relationship between a water tank and a heating assembly of a gas water heater according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing a relative positional relationship between a water tank and a heating assembly of a gas water heater according to an embodiment of the present application;
Fig. 4 is a schematic diagram showing a relative positional relationship between a water storage tank and a heating assembly of a gas water heater according to an embodiment of the present application.
The reference numerals of the application:
1. A burner;
2. 21 parts of heat exchanger, 21 parts of water inlet, 22 parts of water outlet;
3. 31, an inlet, 32, an outlet, 30, a heat exchange mechanism;
41. a first pipe 410, a water inlet joint;
42. a second pipeline, 420, a water outlet joint;
45. A mounting part;
46. A heating assembly;
461. A first electrical heating element;
462. A second electrical heating element;
463. A third electrical heating element;
43. a bypass line;
44. A connecting pipe;
5. a pump;
61. A first temperature detection device;
62. a second temperature detecting means;
7. a flow sensor;
8. a control valve;
9. a blower;
91. A first connection portion;
92. A second connecting portion;
94. a smoke exhaust pipe;
95. And a cover plate.
Detailed Description
The technical solution of the present utility model will be described in detail below with reference to the attached drawings and specific embodiments, it should be understood that these embodiments are only for illustrating the present utility model and not for limiting the scope of the present utility model, and various modifications of equivalent forms of the present utility model will fall within the scope of the appended claims after reading the present utility model.
It will be understood that when an element is referred to as being "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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
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 herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model provides a gas water heater, which can improve the heat preservation time of a water storage tank in a low-temperature environment, effectively reduce the starting frequency of a machine, avoid noise from being generated to interfere a user, ensure the stable operation of the machine even in the low-temperature environment, and better ensure the use experience of the user.
Referring to fig. 1 to 4 in combination, in the embodiment of the present application, a gas water heater is provided, which may include a heat exchanger 2 having a water inlet 21 and a water outlet 22, a heat exchanging channel for circulating water between the water inlet 21 and the water outlet 22, a burner 1 for heating water flowing through the heat exchanging channel, a water storage tank 3, the water storage tank 3 having a cavity for containing water, the cavity having an inlet 31 and an outlet 32, the outlet 32 being in communication with the water inlet 21, a communication line for connecting the water outlet 22 to the inlet 31, a connection pipe 44, a pump 5, the pump 5 being disposed on the communication line, the pump 5 being for driving water in the communication line to flow, and a heating assembly 46, the heating assembly 46 being capable of heating the water storage tank 3.
Wherein the gas water heater may further comprise a connection pipe 44. The connection pipe 44 is used to connect the outlet 32 of the chamber with the water inlet 21 of the heat exchanger 2.
Specifically, the heating unit 46 may be disposed on at least one of the water storage tank 3, the communication pipe near the water storage tank 3, and the connection pipe 44. Of course, it is not excluded in the embodiment of the application to provide the heating element 46 at other locations where it is possible to heat the water reservoir 3. Other variations will occur to those skilled in the art upon a reading of the teachings of the present application, and it is intended to cover within the scope of the present application all such variations and equivalents as fall within the true spirit and scope of the present application.
In the present embodiment, the gas water heater mainly comprises a heat exchanger 2, a burner 1, a water storage tank 3, a communication pipeline, a connecting pipe 44, a pump 5, a heating assembly 46 and the like.
The heat generated by the combustion of the fuel gas by the burner 1 can be used to heat the fluid flowing through the heat exchanger 2. In particular, the burner 1 may be in the form of a burner with an adjustable combustion load.
The heat exchanger 2 is used for circulating fluid to be heated, and the heat exchanger 2 heats the fluid flowing through the heat exchanger by heat generated by combustion of the burner 1. Typically, the fluid may be water, but it is not excluded that it may also be a mixture of water and steam, or in the form of other fluids. In the following embodiments, the fluid is exemplified by water, and other fluid forms can be analogically referred to, and in particular, the present application will not be described herein.
The heat exchanger 2 may have a water inlet 21 and a water outlet 22, and water can enter the heat exchanger 2 from the water inlet 21, exchange heat with high-temperature flue gas generated by the burner 1 in the process of flowing through the heat exchanger 2, and flow out from the water outlet 22. The heat exchanger 2 may be a tube heat exchanger 2, but the heat exchanger 2 may be a fin heat exchanger 2, a plate heat exchanger 2, or the like, and the shape, structure, or the like of the heat exchanger 2 may be different according to the actual use situation, and the present application is not limited thereto.
Specifically, the heat exchanger 2 may be a stainless steel heat exchanger 2, and when the heat exchanger 2 is made of stainless steel, the heat exchanger 2 can be guaranteed to have better heat exchange performance, and the heat exchanger 2 can be guaranteed to have higher reliability, be resistant to high temperature and be resistant to corrosion when in use.
The water storage tank 3 may be a hollow cavity structure, which may include a cavity for containing water. With the hot water stored in the water storage tank 3 at a predetermined temperature or higher, the hot water can be supplied to the user at the fastest speed.
Wherein the volume of the water storage tank 3 may be between 1 liter and 3 liters. When the volume of the water storage tank 3 is more than 1 liter, the requirement of most short-time water consumption of a user can be met, relay heating can be realized by matching with the combustion of the burner 1, constant-temperature hot water can be continuously supplied to the user, theoretically, the larger the volume of the water storage tank 3 is, the more favorable the reduction of the starting frequency of the burner 1 after preheating, the more favorable the avoidance of frequent starting and combustion noise, the reduction of the service life of equipment such as an ignition needle and the like, and meanwhile, the water mixing capacity of the water storage tank 3 can be improved, and the constant-temperature experience of water consumption is improved. When the volume of the water storage tank 3 is controlled within 3 liters, the excessive volume of the gas water heater is not additionally increased. Of course, the volume of the water storage tank 3 is mainly determined according to the overall dimensions of the housing of the present gas water heater and the arrangement of the various parts inside the housing, and the volume of the water storage tank 3 can be set larger under the condition that the above influencing factors change.
Specifically, the shape and structure of the water storage tank 3 may be adaptively set according to the space inside the gas water heater, etc., and the present application is not limited thereto. The water storage tank 3 can be a stainless steel shell, when the shell is made of stainless steel, the water storage tank 3 can be guaranteed to have higher reliability in use, high temperature resistance and corrosion resistance can be achieved, and in addition, the heat insulation performance of the water storage tank 3 is improved.
Wherein the water storage tank 3 may be located upstream of the heat exchanger 2 or downstream of the heat exchanger 2 in the direction of water flow. For example, as shown in fig. 1, when the water storage tank 3 is located upstream of the heat exchanger 2, the water storage tank 3 has an inlet 31 and an outlet 32, the outlet 32 of the water storage tank 3 communicates with the water inlet 21 of the heat exchanger 2, and water flowing out of the outlet 32 of the water storage tank 3 can flow into the heat exchanger 2.
In some embodiments, the water storage tank 3 may further include a heat exchange mechanism 30, where the heat exchange mechanism 30 is used for circulating flue gas, and the flue gas entering the heat exchange mechanism 30 can exchange heat with water contained in the water storage tank 3 through the heat exchange mechanism 30, so that the waste heat in the flue gas can be fully utilized.
In addition, this water storage tank 3 can also be provided with insulation construction, keeps warm through setting up this insulation construction to the water in the water storage tank 3. Specifically, the heat insulation structure may be formed by the heat exchange mechanism 30 and the water storage tank 3 in cooperation. For example, the gap between the heat exchange mechanism 30 and the water storage tank 3 can be used as a natural heat insulation structure of the water storage tank 3, so that the heat insulation effect can be better while the flue gas waste heat is efficiently utilized and the heat exchange efficiency is improved.
Further, the gas water heater may further include a fan 9, where the fan 9 is used to provide driving force for airflow. Specifically, the structure of the blower 9 itself, and the arrangement position and arrangement manner thereof may be different according to the actual usage scenario, and the present application is not limited herein. The fan 9 may specifically be a variable frequency fan 9, for example. The rotational speed of the blower 9 may be adaptively changed according to a change in conditions such as a combustion load. The outlet 32 of the fan 9 is communicated with the heat exchange mechanism 30, and at least part of the flue gas generated by the burner 1 can be led into the heat exchange mechanism 30 through the fan 9 after flowing through the heat exchanger 2.
The heat exchanging mechanism 30 of the water storage tank 3 may be disposed downstream of the heat exchanger 2 in the flow direction of the flue gas. After heat exchange is carried out between high-temperature flue gas generated by combustion of the combustor 1 and the heat exchanger 2, the flue gas can flow through the heat exchange mechanism 30 and continuously exchange heat with the heat exchange mechanism 30, so that the gas water heater is guaranteed to have higher heat exchange efficiency, and an ideal energy-saving and environment-friendly effect is achieved.
In particular, the heat exchange mechanism 30 may include a heat exchange tube, and the interior of the heat exchange tube is used for circulating flue gas. The heat exchange pipe of the heat exchange mechanism 30 is arranged in the cavity of the water storage tank 3 in a penetrating way. When the flue gas flows through the heat exchange pipe, the flue gas can exchange heat with water contained in the water storage tank 3 efficiently, and the interior space of the gas water heater is not excessively occupied.
Specifically, the heat exchange tube may be a plurality of heat exchange tubes connected in parallel. Each heat exchange tube may extend lengthwise along a first direction (e.g., a horizontal direction, etc., which is not limited herein), and two adjacent heat exchange tubes may be spaced apart from each other by a certain distance, and a plurality of heat exchange tubes may be distributed in an array in the water storage tank 3. When the flue gas enters the shell of the water storage tank 3, the flue gas can flow through the heat exchange tubes at the same time, namely, the flue gas is communicated through the heat exchange tubes, and the flue gas exchanges heat with water in the water storage tank 3 efficiently.
Further, the ratio of the volume of the heat exchange tube penetrating through the water storage tank 3 to the volume of the water storage tank 3 can be 1/3 to 1/2, so that the water in the volume is ensured to be fully contacted with the heat exchange tube, the secondary full utilization of the smoke energy is realized, the smoke and water are ensured to have higher heat exchange efficiency, and meanwhile, the volume of the heat exchange tube and the volume of the water storage tank 3 are reasonably controlled by reasonably controlling the size and the ratio of the heat exchange tube and the volume of the water storage tank 3, so that the internal space of the gas water heater is not excessively occupied, and the volume of the gas water heater is not influenced.
Specifically, the heat exchange tube penetrating the water storage tank 3 may be a stainless steel heat exchange tube. When the heat exchange tube is made of stainless steel, the heat exchange tube can be guaranteed to have better heat exchange performance, and has higher reliability, high temperature resistance and corrosion resistance when in use.
In one embodiment, the heat exchange mechanism 30 has a flue gas outlet 32 and a flue gas inlet 31, a cover plate 95 is provided at or near the flue gas outlet 32, the cover plate 95 is used for opening the flue gas outlet 32 when the fan 9 is in a start state, and the cover plate 95 is used for closing the flue gas outlet 32 when the fan 9 is in a stop state.
In the present embodiment, the cover plate 95 can be opened or closed with the opening and closing of the blower 9, i.e., the cover plate 95 may be a structure that is opened or closed with the flow of the flue gas.
When the gas water heater stops burning, after the fan 9 stops running, the cover plate 95 at the position of the flue gas outlet 32 or at the position close to the downstream position of the flue gas outlet 32 can be switched from an open state to a closed state, so that external wind (particularly cold wind with lower temperature) is prevented from flowing back into the water storage tank 3 through the smoke exhaust pipe 94, and the heat preservation effect of the water storage tank 3 is affected.
The communication pipeline is used for connecting the water outlet 22 of the heat exchanger 2 with the inlet 31 of the water storage tank 3. Specifically, the communication pipeline may include a first pipeline water inlet pipeline connected to the inlet 31 of the water storage tank 3, a second pipeline water outlet pipeline connected to the water outlet 22 of the heat exchanger 2, and a bypass pipeline 43 connected between the first pipeline 41 and the second pipeline 42.
Wherein, for a gas water heater, it may include a water inlet line and a water outlet line. The water inlet pipeline can be used for communicating an external water source with the water storage tank 3 and the heat exchanger 2 so as to provide water to be heated for the gas water heater. The first pipeline 41 is a part of the water inlet pipeline, and the second pipeline 42 is a part of the water outlet pipeline.
The water outlet pipeline can be communicated with a water terminal of a user through the water outlet 22 of the heat exchanger 2, so that the water heated by the gas water heater is provided for the water terminal. One end of the bypass line 43 may be connected to the water outlet line and the other end of the bypass line 43 may be connected to the water inlet line.
The material of intercommunication pipeline can include stainless steel material, when the material of this intercommunication pipeline was stainless steel material, can make this intercommunication pipeline have better heat transfer performance, can guarantee moreover that the intercommunication pipeline has higher reliability when using, can be high temperature resistant and can corrosion-resistant.
The connection pipe 44 is used to connect the outlet 32 of the chamber with the water inlet 21 of the heat exchanger 2. Specifically, the material of the connecting pipe 44 may also include stainless steel, and when the material of the connecting pipe 44 is stainless steel, the connecting pipe 44 may have a better heat exchange performance, and the connecting pipe 44 may be ensured to have a higher reliability, be resistant to high temperature and be resistant to corrosion when in use.
The pump 5 may be disposed on the communication pipeline, and is configured to provide a driving force for the flow of water, and when the driving device is started, the water storage tank 3, the connection pipe 44, the heat exchanger 2 and the water in the communication channel circulate, so that an internal circulation waterway can be formed.
In the water flow direction, the water storage tank 3 and the heat exchanger 2 may be connected in series, as shown in fig. 1, when the water storage tank 3 is located upstream of the heat exchanger 2, water may sequentially pass through the water storage tank 3, the connection pipe 44, the heat exchanger 2, the second pipeline 42, the bypass pipeline 43 and the first pipeline 41 and then return to the water storage tank 3 for circulation under the driving of the pump 5, thereby forming an internal circulation waterway.
When the water storage tank 3 is under some special working conditions, such as a low-temperature environment, including a low-temperature standing environment, low-temperature back-flowing air and other working conditions, the water in the water storage tank 3 has shorter heat preservation time. It is possible that the water temperature of the water storage tank 3 has been reduced to a lower temperature within 30 minutes. In order to maintain the water temperature in the water storage tank 3, a method of starting the burner 1 to perform combustion heat compensation may be adopted. However, when the burner 1 is frequently started to heat, noise can be generated to interfere a user, particularly when the user has a rest at night, and the surrounding environment is relatively quite, the gas water heater is frequently started to burn at the moment, meanwhile, the pump 5 is started to perform internal circulation, the water temperature of an internal circulation waterway (particularly the water storage tank 3) is improved, the use experience of the user can be influenced with high probability, and the service life of the gas water heater can be further influenced.
In order to solve the above-mentioned problems, in the gas water heater provided in the embodiment of the present application, the heating component 46 is disposed on the water storage tank 3 and/or on a pipeline close to the water storage tank 3 (for example, a connecting pipe 44 between the water outlet 22 of the heat exchanger 2 and the inlet 31 of the water storage tank 3, and between the outlet 32 of the water storage tank 3 and the water inlet 21 of the heat exchanger 2), so as to effectively slow down the cooling speed of the water storage tank 3, thereby improving the heat preservation duration of the water storage tank 3, further effectively reducing the frequency of starting the machine, avoiding noise from interfering with the user, and ensuring stable operation of the machine even in a low-temperature environment, and preferably ensuring the use experience of the user.
The condition for starting the heating assembly 46 may be a temperature condition, for example, the gas water heater further includes a controller, a preset heating condition is stored in the controller, and when the temperature detected by the temperature detecting element of the gas water heater meets the preset heating condition, the controller starts the heating assembly 46 to raise the water temperature in the water storage tank 3 for auxiliary heat preservation.
The conditions for activating the heating assembly 46 may also be other conditions, such as time conditions. The gas water heater also comprises a controller, a timing module can be arranged in the controller, the gas water heater can utilize the timing module to time after stopping internal circulation for the last time, and when the preset time length is reached, the heating assembly 46 is started to lift the water temperature in the water storage tank 3 for auxiliary heat preservation.
Of course, the condition for activating the heating element 46 may be other, not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, so long as the function and effect of the heating element are the same as or similar to those of the present application, and all the conditions are included in the scope of the present application.
In embodiments, at least a portion of the heating assembly 46 may be disposed on the water storage tank 3, for example, on an exterior surface of the water storage tank 3, or may be disposed within the water storage tank 3, or may be disposed through the water storage tank 3, or a combination of the various locations described above.
Referring to fig. 4, in the case where the heating element 46 is disposed on the outer surface of the water storage tank 3, the heating element 46 may be directly attached to the outer surface of the water storage tank 3. For example, when the housing of the water storage tank 3 is of a box-type structure as a whole, it may include opposite top and bottom walls and side walls enclosed between the top and bottom walls. The heating assembly 46 may include at least one electrical heating element that may be directly conformed to the exterior surface of the water storage tank. For example, when the electric heating element is plural, the plural electric heating elements may be dispersed on the housing of the water storage tank 3, wherein the distribution position of the electric heating element on the housing of the water storage tank 3 is not particularly limited herein. In some embodiments, an electric heating element may be disposed on the top wall of the water storage tank 3 or disposed near the side wall of the top wall of the water storage tank 3, so that the water in the water storage tank 3 near the upper part can be heated preferentially, and the water outlet temperature of the water storage tank 3 can be raised at a higher speed.
When the heating assembly 46 is started, heat can be transferred to water in the water storage tank 3 through the shell of the water storage tank 3, and the heating assembly is not contacted with water in the water storage tank 3, so that the waterproof sealing requirement on the heating assembly 46 can be reduced, and meanwhile, the heating assembly is convenient to install and maintain.
In addition, at least part of the heating assembly 46 may be provided on the communication line near the water storage tank 3, or at least part of the heating assembly 46 may be provided on the connection pipe 44 near the water storage tank 3. In particular, in order to uniformly heat the water of the water storage tank 3 using the heating assembly 46, the heating assembly 46 may be disposed close to the inlet 31 and/or the outlet 32 of the cavity. For example, the heating assembly 46 may be disposed proximate the inlet 31 of the chamber, may be disposed proximate the outlet 32 of the chamber, and may be disposed proximate both the inlet 31 and the outlet 32 of the chamber.
In a specific embodiment, the water storage tank 3 includes a water inlet joint 410 connected to the inlet 31 and a water outlet joint 420 connected to the outlet 32, and the heating element 46 is disposed on an outer surface of the water inlet joint 410 and/or the water outlet joint 420.
In this embodiment, the water storage tank 3 may be provided with a water inlet joint 410 connected to the inlet 31 and a water outlet joint 420 connected to the outlet 32, one end of the water inlet joint 410 extending into the cavity, the other end being located outside the cavity, one end of the water outlet joint 420 extending into the cavity, the other end being located outside the cavity.
The heating element 46 may be disposed on the outer surface of the water inlet joint 410, on the outer surface of the water outlet joint 420, or on both the outer surfaces of the water inlet joint 410 and the water outlet joint 420.
For example, the heating element 46 is disposed on the outer surface of the water outlet joint 420, and the heating element 46 disposed on the outer surface of the water outlet joint 420 can transfer heat to the water outlet joint 420 after being started, and the water outlet joint 420 is used as an intermediate transition piece to uniformly transfer heat to the water in the water storage tank 3, and the heating element 46 itself does not need to be in contact with the water, so that the reliability of the operation of the heating element can be ensured. In addition, when the heating assembly 46 is disposed at the water outlet joint 420, the heating assembly 46 can be used to rapidly raise the water temperature near the water outlet joint 420, thereby facilitating the raising of the water outlet temperature of the water storage tank 3 in a minimum amount of time.
When the heating element 46 is disposed on the outer surface of the water inlet joint 410, the heating element 46 disposed on the outer surface of the water inlet joint 410 can transfer heat to the water inlet joint 410 after being started, and the water inlet joint 410 is used as an intermediate transition piece to uniformly transfer heat to the water in the water storage tank 3, and the heating element 46 itself does not need to be in contact with the water, so that the reliability of the water storage tank during operation can be ensured.
In one embodiment, the heating assembly 46 includes at least one electrical heating element, and the power of the heating assembly 46 ranges from 20 watts to 50 watts.
In this embodiment, the heating assembly 46 is embodied in an electrically heatable form, which may include at least one electrical heating element. Specifically, the power range of the heating component 46 can be between 20 watts and 50 watts to form a low-power auxiliary electric heating and heat preservation system, so that the heat preservation duration of the water storage tank 3 is prolonged in a low-temperature environment, and the starting frequency of the machine is effectively reduced. When the power of the heating element 46 is too small, for example, less than 20 watts, the cooling speed of the water storage tank 3 may not be effectively increased in a low-temperature environment, and when the power of the heating element 46 is too large, for example, more than 50 watts, the temperature of the water storage tank 3 may be rapidly increased in a short time, which may result in a risk of over Wen Dengfeng.
In one embodiment, the inlet 31 of the cavity is provided with a water inlet joint 410 for communicating the water inlet pipeline with the cavity, the outlet 32 of the cavity is provided with a water outlet joint 420 for communicating the connecting pipe 44 with the cavity, and the water inlet joint 410 and/or the water outlet joint 420 are provided with a mounting part 45. When the heating assembly 46 is activated, the heating assembly 46 can transfer heat to the water inlet joint 410 and/or the water outlet joint 420 through the mounting portion 45.
In the present embodiment, at least one of the outside of the water inlet joint 410 and the water outlet joint 420 is provided with a mounting portion 45. Specifically, taking the case that the installation parts 45 are provided at the outer portions of the water inlet joint 410 and the water outlet joint 420, the installation parts 45 may include a plurality of installation parts 45 which may be fixed at the outer portions of the water inlet joint 410 and the water outlet joint 420, respectively, and in addition, the installation parts 45 may be an integral installation part 45, and the integral installation part 45 may be fixed at the outer portions of the water inlet joint 410 and the water outlet joint 420.
The specific shape and configuration of the mounting portion 45 are not particularly limited herein. For example, when the mounting portion 45 is a unitary mounting portion 45, the mounting portion 45 may be a mounting plate that fits over the exterior of the water inlet and outlet fittings 410, 420. When the mounting portion 45 is in the form of a plurality of independent units, the mounting portion 45 may include a snap ring structure that is sleeved on the water inlet joint 410 and the water outlet joint 420.
Specifically, the mounting portion 45 may include a mounting hole into which the heating assembly 46 can be inserted. When the heating element 46 is inserted into the mounting hole, the outer surface of the heating element 46 can be in sufficient contact with the mounting portion 45, thereby facilitating the improvement of the heat exchange effect between the heating element 46 and the mounting portion 45.
The mounting portion 45 may be provided with mounting holes for mounting the heating assembly 46. For example, when the mounting portion 45 is in the structure of a mounting plate, a mounting hole may be provided on the mounting plate, and the heating element 46 may be inserted into the mounting hole. For example, when the mounting portion 45 is in the form of a snap ring, the snap ring may be provided with a mounting hole, and the heating element 46 may be inserted into the mounting hole.
In addition, in order to secure the reliability of the installation, the heating assembly 46 may be fixed in the installation hole by adding a connector. The specific form of the connecting member may be a screw, and of course, the connecting member may be other forms, which are not limited herein.
As shown in fig. 2, in one embodiment, the heating assembly 46 includes at least a first electrical heating element 461 and a second electrical heating element 462, the first electrical heating element 461 being disposed proximate the water inlet fitting 410 and the second electrical heating element 462 being disposed proximate the water outlet fitting 420.
In this embodiment, the heating assembly 46 may include at least two electric heating elements, and when the heating assembly includes at least two electric heating elements, a plurality of electric heating elements may be distributed, so as to further facilitate uniform heating of the water in the water storage tank 3.
In particular, the heating assembly 46 may include a first electrical heating element 461 disposed proximate to the water inlet connector 410 and a second electrical heating element 462 disposed proximate to the water outlet connector 420. The first electric heating element 461 can be used for transferring heat to the water inlet joint 410, then the water in the water storage tank 3 near the water inlet joint 410 is heated by the water inlet joint 410, meanwhile, the second electric heating element 462 can be used for transferring heat to the water outlet joint 420, and then the water in the water storage tank 3 near the water outlet joint 420 is heated by the water outlet joint 420. Wherein, the water inlet joint 410 and the water outlet joint 420 can be arranged in a dislocation way in at least one of the horizontal direction and the height direction in the water storage tank 3, thereby being beneficial to the uniform heating of the water in different positions in the water storage tank 3 by the first electric heating element 461 and the second electric heating element 462.
As shown in fig. 3, in one embodiment, the heating assembly 46 includes a first electric heating element 461, a second electric heating element 462, and a third electric heating element 463, where the first electric heating element 461, the second electric heating element 462, and the third electric heating element 463 are spaced apart beside the water inlet joint 410 and the water outlet joint 420.
In this embodiment, the number of electric heating elements included in the heating unit 46 is mainly different from the above-described embodiment.
In particular, the heating assembly 46 may include a first electric heating element 461, a second electric heating element 462, and a third electric heating element 463, wherein when the mounting part 45 is of a unitary structure, for example, when the mounting part 45 is a mounting plate sleeved outside the water inlet joint 410 and the water outlet joint 420, the first electric heating element 461, the second electric heating element 462, and the third electric heating element 463 may be spaced apart in a horizontal direction so as to uniformly heat water in the water storage tank 3 through the mounting plate, the water inlet joint 410, and the water outlet joint 420. When the mounting portion 45 is of a split type structure, for example, when the mounting portion 45 includes snap rings respectively sleeved outside the water inlet joint 410 and the water outlet joint 420, two of the electric heating elements may be disposed on the snap ring of one joint, and the other electric heating element may be disposed on the snap ring of the other joint. For example, two electrical heating elements may be provided on the collar of the water inlet fitting 410 and another electrical heating element provided on the collar of the water outlet fitting 420.
In a specific embodiment, the power of the first electrical heating element 461, the second electrical heating element 462, and the third electrical heating element 463 are all 10 watts.
In the embodiment, the power of each electric heating element is smaller, so that when the electric heating element is started, the instantaneous local temperature is not excessively high, and the mounting position of the electric heating element is not easy to scale due to the high temperature.
In addition, since the electric heating element of the present application is disposed near the water inlet joint 410 and the water outlet joint 420, when the gas water heater is used for a long period of time, even if a small amount of scale occurs at the positions of the water inlet joint 410 and the water outlet joint 420, the water inlet joint 410 and the water outlet joint 420 can be conveniently cleaned or replaced.
In one embodiment, the gas water heater may further include a control valve 8, the gas water heater including a normal water use mode and an internal circulation mode, the control valve 8 being in a first state to place the internal circulation waterway in a communication state when the gas water heater is in the internal circulation mode, the control valve 8 being in a second state to allow water to flow from the water inlet pipeline into the gas water heater and from the water outlet pipeline out of the gas water heater when the gas water heater is in the normal water use mode.
In the present embodiment, the gas water heater is configured to switch between the normal water use mode and the internal circulation mode by providing the control valve 8 and changing the state of the control valve 8. When the control valve 8 is in the first state, the water flow channel corresponding to the internal circulation water channel can be in a communication state, and when the pump 5 is started, water in the internal circulation water channel can circularly flow. When the control valve 8 is in the second state, the water flow channel corresponding to the internal circulation waterway can be in a disconnected state or the water flow rate on the communicating pipeline can be reduced, at least the water can enter the gas water heater from the water inlet pipeline by starting the pump 5, and the water can flow out of the gas water heater from the water outlet pipeline after passing through the water storage tank 3 and the heat exchanger 2 or passing through the heat exchanger 2 and the water storage tank 3, and is supplied to a user terminal.
In one embodiment, a first connection portion 91 is formed at a connection position of the water inlet pipe and the bypass pipe 43, a second connection portion 92 is formed at a connection position of the water outlet pipe and the bypass pipe 43, and the control valve 8 is disposed at any one of the bypass pipe 43, the first connection portion 91, and the second connection portion 92.
Specifically, the control valve 8 may include any one of a switching valve or an electric water valve provided on the bypass line 43, a three-way valve provided at a communication portion between the water outlet line and the bypass line 43, and a three-way valve provided at a communication portion between the water inlet line and the bypass line 43.
For example, when the control valve 8 is a switching valve provided in the bypass line 43, the switching valve is closed when the water in the internal circulation path needs to circulate, so that the water in the bypass line 43 can circulate. When water needs to flow out of the water outlet line for supply to the user terminal, i.e. when there is a water demand by the user, the switch valve is in an open state so that the water in the bypass line 43 does not circulate.
For example, when the control valve 8 is an electric water valve, the electric water valve is used to regulate the flow of water in the bypass line 43. In particular, the electric water valve may be in the form of an electric regulating valve capable of achieving stepless regulation of the flow. The electric water valve may be electrically connected to the controller, and the opening degree of the electric water valve is adjusted according to a control signal of the controller, thereby realizing flow adjustment of water in the bypass line 43. In particular, the specific form, shape, configuration, etc. of the electric water valve is not particularly limited herein. When the water in the internal circulation water path circulates, the electric water valve has a first opening degree so that the water in the bypass line 43 circulates. When water is used to flow out of the gas water heater from the water outlet pipe, the electric water valve has a second opening smaller than the first opening so that water in the bypass pipe 43 does not circulate, or so that water entering the gas water heater from the water inlet pipe partially flows into the bypass pipe 43 and partially flows into the water storage tank 3.
For example, when the control valve 8 is a three-way valve, specifically, the three-way valve may be provided at the connection (second connection portion 92) of the water outlet pipe and the bypass pipe 43, and the three-way valve may communicate the water outlet pipe with the bypass pipe 43 when the water in the internal circulation water path needs to be circulated.
Or the three-way valve may be provided at a junction (first junction 91) of the water intake pipe and the bypass pipe 43, and the three-way valve communicates the bypass pipe 43 with the water intake pipe when the water in the internal circulation water path needs to be circulated.
In the present embodiment, the specific arrangement of the control valve 8 may be other ways, and is not limited to the above description, and other modifications may be made by those skilled in the art in light of the technical spirit of the present application, but all the functions and effects achieved are included in the protection scope of the present application as long as they are the same or similar to the present application.
In this embodiment, in order to obtain the temperature and temperature difference of the water in the internal circulation waterway, a temperature detection device electrically connected to the controller may be provided, and the controller may determine the temperature and temperature difference of the water in the internal circulation waterway according to the temperature signal obtained by the temperature detection device.
In this embodiment, in order to obtain the flow condition in the internal circulation water path, a flow sensor 7 may be provided, and the flow sensor 7 is electrically connected to a controller, and the controller may determine the flow condition in the internal circulation water path according to the flow signal obtained by the flow sensor 7.
In one embodiment, the gas water heater may further include a first temperature detecting device 61 disposed at a downstream of the second connecting portion 92, when the temperature detected by the first temperature detecting device 61 satisfies a first temperature rising condition, the heating assembly 46 is started, the pump 5 is started for a certain period of time, and the water storage tank 3, the heat exchanger 2 and the water in the communication pipeline circulate to form an internal circulation waterway.
In this embodiment, the gas water heater may further be provided with a first temperature detecting device 61, where the first temperature detecting device 61 may be disposed at a position downstream of the second connection portion 92, and since the first temperature detecting device 61 is closest to the outside, it is most affected by the external environment temperature, and when the environment temperature in which the gas water heater is installed is low, the temperature detected at the first temperature detecting device 61 is fast in decay rate, and can most reflect the environment temperature in which the current gas water heater is located. Therefore, the temperature signal detected by the first temperature detecting device 61 may be compared with a preset first temperature raising condition, and when the temperature detected by the first temperature detecting device 61 satisfies the first temperature raising condition, the heating assembly 46 may be started to perform auxiliary heating so as to raise the water temperature in the water storage tank 3. In the process of starting the heating assembly 46 to perform auxiliary heating, the pump 5 can be started for a certain period of time, water in the water storage tank 3, the heat exchanger 2 and the communication pipeline circularly flow to form an internal circulation waterway, so that the water temperature of the whole internal circulation waterway is uniform, and the local temperature is prevented from being too high.
The first temperature raising condition may be pre-stored in the controller, for example, the first temperature raising condition may be when the temperature detected by the first temperature detecting device 61 is lower than 25 ℃. Of course, the specific form of the first temperature increasing condition and the specific temperature boundary value are not limited solely herein.
In one embodiment, the gas water heater further comprises a second temperature detection device 62 arranged on the cavity, the second temperature detection device 62 is electrically connected with the controller, when the temperature detected by the second temperature detection device 62 meets a second temperature rising condition, the heating assembly 46 is started, the pump 5 is started for a certain period of time, and the water storage tank 3, the heat exchanger 2 and water in the communication pipeline circulate to form an internal circulation waterway.
In some special scenarios, for example, when outdoor cold air is poured into the smoke exhaust pipe 94 in winter, the cold air entering the smoke exhaust pipe 94 directly affects the temperature of the water storage tank 3, and the temperature at the water storage tank 3 decays rapidly. In order to accurately acquire the temperature change of the water storage tank 3, a second temperature detecting device 62 may be provided outside the cavity of the water storage tank 3. When the temperature detected by the second temperature detecting means 62 satisfies the second temperature rising condition, the heating assembly 46 is started to perform auxiliary heating to raise the water temperature in the water storage tank 3. In the process of starting the heating assembly 46 to perform auxiliary heating, the pump 5 can be started for a certain period of time, water in the water storage tank 3, the heat exchanger 2 and the communication pipeline circularly flow to form an internal circulation waterway, so that the water temperature of the whole internal circulation waterway is uniform, and the local temperature is prevented from being too high.
The second temperature rising condition may be pre-stored in the controller, for example, the second temperature rising condition may be when the temperature detected by the second temperature detecting device 62 is lower than 15 ℃. Of course, the specific form and specific temperature boundary values of the second temperature increasing condition are not limited solely herein.
It should be noted that, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing embodiments in the present specification are all described in a progressive manner, and the same and similar parts of the embodiments are mutually referred to, and each embodiment is mainly described in a different manner from other embodiments.
The foregoing is merely a few embodiments of the present utility model, and the embodiments disclosed in the present utility model are merely examples which are used for the convenience of understanding the present utility model and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail of the embodiments without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.
Claims (22)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421540336.2U CN222761132U (en) | 2024-07-01 | 2024-07-01 | Gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421540336.2U CN222761132U (en) | 2024-07-01 | 2024-07-01 | Gas water heater |
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| CN222761132U true CN222761132U (en) | 2025-04-15 |
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| CN202421540336.2U Active CN222761132U (en) | 2024-07-01 | 2024-07-01 | Gas water heater |
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| CN (1) | CN222761132U (en) |
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