Non-pressure heat preservation water container and water boiler
By introducing a one-way exhaust valve and an electric exhaust switch linkage design into the pressureless water tank, combined with the insulation layer, the problem of rapid heat loss in the pressureless water tank is solved, achieving efficient insulation and low energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杨杰晖
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-24
AI Technical Summary
In existing unpressurized water tank designs, the vent design leads to rapid heat loss, poor heat preservation, increased energy consumption, and inability to meet the demand for instant hot water.
The system employs a linkage design between an exhaust check valve and an electric exhaust switch, combined with an insulation layer and pressure detection components, to achieve automated steam management and timely shut-off, preventing heat loss.
It improves the heat preservation effect of the water tank, reduces energy consumption, meets the demand for instant hot water, and enhances the convenience and safety of use.
Smart Images
Figure CN224162744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water heater technology, and in particular to a pressureless insulated water tank and a water heater. Background Technology
[0002] In modern homes, water heaters are crucial for providing hot water, and their performance and efficiency directly impact the user's daily experience. Among these, pressureless water tanks (or unpressurized water containers) are an important component of water heaters, widely used in the market due to their high safety and easy installation. The design principle of pressureless water tanks lies in maintaining a balance between their internal pressure and external atmospheric pressure, avoiding potential safety hazards caused by excessive internal pressure.
[0003] However, the widely used pressureless water tank design currently on the market has a significant technical flaw: the specially designed unobstructed vent. The original intention of this design was to ensure that the steam generated during the heating process could be smoothly discharged, preventing internal pressure buildup and thus ensuring safe use. However, in practice, the efficient venting capacity of the unobstructed vent also accelerates heat loss from the water tank. Specifically, when steam is discharged through the unobstructed vent, it carries away a large amount of heat energy, causing the water tank temperature to drop rapidly. This rapid cooling not only reduces the heat retention effect of the hot water but also increases the energy consumption of the water heater, as users need to start the heating system more frequently to maintain the required water temperature. Especially in cold seasons or when a large amount of hot water is needed continuously, pressureless water tanks with poor heat retention often require longer preheating times, failing to meet immediate hot water demand and causing inconvenience to users. Utility Model Content
[0004] In a first aspect, this utility model provides a pressureless insulated water tank, comprising at least a water tank body; an exhaust one-way valve disposed on the water tank body for allowing steam to be discharged unidirectionally from the interior of the water tank body; an electric exhaust switch connected to the exhaust one-way valve for controlling the opening and closing of the exhaust one-way valve; a water outlet tap connected to the interior of the water tank body for discharging water from the interior of the water tank body; and a water outlet tap switch connected to the water outlet tap for controlling the opening and closing of the water outlet tap.
[0005] The electric vent switch is linked to the water tap switch, so that when the water tap switch is opened, the electric vent switch automatically opens, allowing the vent check valve to release pressure; when the water tap switch is closed, the electric vent switch automatically closes, stopping the venting.
[0006] In some embodiments, a thermal insulation layer is further included, which is disposed on the outer surface of the water tank body.
[0007] In some embodiments, the thickness of the insulation layer is between 0.5 and 1.5 cm.
[0008] In some embodiments, a pressure detection component is further included, which is electrically connected to the exhaust check valve for detecting pressure changes within the water tank and controlling the opening and closing of the exhaust check valve.
[0009] In some embodiments, a controller is further included, which is electrically connected to both the electric air vent switch and the water faucet switch, for acquiring the on / off status signal of the water faucet switch and controlling the opening or closing of the electric air vent switch based on the on / off status signal.
[0010] In some embodiments, the controller is further provided with a timing function, which is used to delay the control of the electric exhaust switch by a preset time after the water tap is closed.
[0011] In some embodiments, both the exhaust check valve and the electric exhaust switch are located on the top of the water tank body.
[0012] In some embodiments, the system further includes: a heating component disposed within the water tank body for heating the water inside the water tank body; a water level monitoring component disposed within the water tank body for monitoring the water level inside the water tank body; a temperature detection component disposed within the water tank body for detecting the temperature inside the water tank body; and a one-way inlet valve disposed on the water tank body for controlling the one-way flow of water into the water tank body.
[0013] In some embodiments, the exhaust passage of the exhaust check valve is provided with a filter to prevent impurities from entering the exhaust check valve.
[0014] Secondly, this utility model also provides a water heater that uses a pressureless insulated water tank as described in any of the above embodiments.
[0015] The pressureless insulated water tank provided by this utility model can effectively improve the heat preservation effect of the water tank while venting and depressurizing through the linkage design of the exhaust one-way valve, electric exhaust switch and electric exhaust switch, thus avoiding heat loss in the water tank and reducing energy consumption.
[0016] Other features and beneficial effects of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this invention. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a pressureless insulated water tank provided in an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the control of various components in a pressureless insulated water tank according to an embodiment of the present invention.
[0020] Figure label:
[0021] 10 - Water tank body; 21 - Exhaust check valve; 22 - Electric exhaust switch; 31 - Water outlet faucet; 32 - Water outlet faucet switch; 40 - Insulation layer; 50 - Heating component; 60 - Temperature detection component; 70 - Water inlet check valve. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The technical features designed in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be noted that all terms used in this utility model (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains, and should not be construed as limiting this utility model; it should be further understood that the terms used in this utility model should be understood to have the same meaning as those in the context of this specification and in the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this utility model.
[0024] Please see Figure 1 This utility model provides a pressureless insulated water tank, which includes at least a water tank body 10, an exhaust one-way valve 21, an electric exhaust switch 22, a water outlet faucet 31, and a water outlet switch 32.
[0025] The water tank body 10, as the main water storage component, can be made of, but is not limited to, high-strength, corrosion-resistant stainless steel to ensure long-term safety and durability. The water tank body 10 is designed as a sealed structure, capable of withstanding a certain amount of internal pressure. The specific shape and structure of the water tank body 10 can be rationally designed according to actual working conditions and the needs of external components, and are not limited here.
[0026] Preferably, the exterior of the water tank body 10 is provided with a heat insulation layer 40 to ensure stable water temperature. Specifically, as shown below... Figure 1 As shown, the insulation layer 40 is disposed on the outer surface of the water tank body 10 and tightly wraps around the outer surface of the water tank body 10. The insulation layer 40 can be made of high-efficiency insulation materials (such as polyurethane foam, rock wool, etc.), which effectively reduces heat loss, maintains a stable water temperature inside the water tank, and improves energy utilization efficiency. In this embodiment, the thickness of the insulation layer 40 is preferably between 0.5 and 1.5 cm to ensure its insulation effect.
[0027] An exhaust check valve 21 is disposed on the water tank body 10 to allow steam to be discharged unidirectionally from the inside of the water tank body 10. In this embodiment, the exhaust check valve 21 is preferably installed on the top or side wall of the water tank body 10 to ensure effective steam discharge. The exhaust check valve 21 is designed with a one-way flow structure, allowing steam to be discharged only from the inside of the water tank to the outside, preventing external air or moisture from flowing back into the water tank body 10 and maintaining water quality cleanliness. When the water temperature inside the water tank body 10 rises and steam is generated, the steam is automatically discharged through the exhaust check valve 21 to avoid excessive internal pressure.
[0028] Preferably, the exhaust passage of the exhaust check valve 21 is equipped with a filter device to prevent impurities from entering the exhaust check valve 21. The filter device consists of a filter medium and a support frame. The filter medium is made of a corrosion-resistant, high-temperature-resistant material with good filtration performance (such as stainless steel mesh, ceramic filter element, etc.). It has a fine pore structure, effectively blocking the passage of impurities (such as particulate matter, scale, etc.), thus preventing impurities from entering the exhaust passage. The support frame is used to fix the filter medium, ensuring its stability and durability during the operation of the water tank.
[0029] The electric exhaust switch 22 is connected to the exhaust check valve 21 and is used to control the opening and closing of the exhaust check valve 21. Specifically, the electric exhaust switch 22 is electrically connected to the exhaust check valve 21 and can be controlled by a preset program. The electric exhaust switch 22 has a built-in motor drive structure, which can accurately control the opening and closing of the exhaust check valve 21, realize automated management of steam discharge, and improve ease of use. In this embodiment, it is preferable that both the exhaust check valve 21 and the electric exhaust switch 22 are located at the top of the water tank body 10 to ensure that steam is smoothly discharged from the top of the water tank body 10.
[0030] The faucet 31 is connected to the interior of the water tank body 10 and is used to release water from inside the water tank body 10. Specifically, the faucet 31 is located at the bottom or side wall of the water tank body 10. In this embodiment, it is preferably made of high-quality brass or stainless steel to ensure smooth water flow and prevent rusting. The faucet 31 is connected to the interior of the water tank body 10 through a sealed pipe to ensure that there is no leakage during the water release process.
[0031] The faucet switch 32 is connected to the faucet 31 and is used to control the opening and closing of the faucet 31. The faucet switch 32 can be a manual knob or a push-button design, which allows users to control the water flow as needed and achieve flexible water use.
[0032] The electric vent switch 22 is linked to the water tap switch 32, so that when the water tap switch 32 is opened, the electric vent switch 22 automatically opens, allowing the vent check valve 21 to release pressure; when the water tap switch 32 is closed, the electric vent switch 22 automatically closes, stopping the venting.
[0033] Its working principle is as follows: When the water tap 32 is opened, water inside the water tank 10 flows out through the water tap 31. Simultaneously, the electric vent switch 22 opens synchronously upon detecting that the water tap 32 is open, allowing steam inside the water tank 10 to be released through the vent check valve, maintaining pressure balance inside the water tank. When the water tap 32 is closed, the electric vent switch 22 closes synchronously, causing the vent check valve 21 to stop venting in time, preventing heat from the water tank 10 from being continuously released through the vent check valve 21.
[0034] By linking the electric exhaust switch 22 with the water tap switch 32 as described above, automatic pressure relief during water dispensing can be effectively achieved, improving the safety and convenience of using the pressureless insulated water tank; at the same time, it can also precisely control the timely closure of the exhaust check valve 21, reducing unnecessary steam emissions and lowering energy consumption.
[0035] Furthermore, the pressureless insulated water tank also includes a controller, which is electrically connected to the electric exhaust switch 22 and the water outlet switch 32 respectively, to obtain the on / off status signal of the water outlet switch 32, and control the opening or closing of the electric exhaust switch according to the on / off status signal.
[0036] That is, in this embodiment, the linkage between the electric exhaust switch 22 and the water tap switch 32 is preferably achieved through electrical linkage and control by an electrical signal. Specifically, the water tap switch 32 is equipped with a sensor to detect the switch status and send the switch status signal to the controller. The controller controls the opening or closing of the electric exhaust switch 22 based on the received switch status signal. By designing circuits such as PLCs and relays, the output signal of the sensor can be converted into a signal that can control the electric exhaust switch 22.
[0037] Of course, based on this concept, those skilled in the art can also use other linkage methods, such as connecting the faucet switch and the electric exhaust switch 22 to the intelligent control system and achieving linkage through the internal program control algorithm of the system.
[0038] In an optional embodiment, the controller also includes a timing function, which delays the closing of the water tap 31 by a preset time before controlling the closing of the electric vent switch 22. This design further removes residual steam or air, ensuring stable pressure inside the water tank.
[0039] Preferably, the pressureless insulated water tank further includes a pressure detection component (not shown in the figure). The pressure detection component is electrically connected to the exhaust check valve 21 and is used to detect pressure changes inside the water tank body 10 and control the opening and closing of the exhaust check valve 21. When the pressure detection component detects that the pressure inside the water tank body 10 exceeds a preset maximum pressure value, it can control the exhaust check valve 21 to open to release pressure. When the pressure detection component detects that the pressure inside the water tank body 10 is lower than a preset minimum pressure value or there is no pressure, it can control the exhaust check valve 21 to close to achieve pressure balance inside the water tank body 10.
[0040] In some embodiments, the pressureless insulated water tank further includes at least one of the following: heating component 50, water level monitoring component, temperature detection component 60, and inlet check valve 70.
[0041] The heating element 50 is disposed within the water tank body 10 to heat the water inside the water tank body 10. In this embodiment, the heating element 50 preferably employs a heating wire, heating tube, or heat pump, etc. The specific choice depends on the actual application scenario and requirements. The power and heating speed of the heating element 50 can be adjusted according to user needs to achieve energy-efficient and high-performance hot water supply.
[0042] A water level monitoring component (not shown in the figure) is installed inside the water tank body 10 to monitor the water level inside the water tank body 10. The water level monitoring component can be a float-type, capacitive, or ultrasonic water level sensor, which converts the water level information into an electrical signal and outputs it to the control system. The control system controls the opening and closing of the inlet check valve 70 according to the water level information to maintain the water level inside the water tank within a safe and reasonable range.
[0043] A temperature detection component 60 is disposed inside the water tank body 10 to detect the internal temperature of the water tank body 10. The temperature detection component 60 can be a temperature sensing element such as a thermistor, thermocouple, or digital temperature sensor, which converts the temperature information into an electrical signal and outputs it to the controller. The controller adjusts the power and operating time of the heating component 50 according to the temperature information to maintain the water temperature within a preset range.
[0044] A one-way inlet valve 70 is installed on the water tank body 10 to control the one-way flow of water into the water tank body 10. The one-way inlet valve 70 adopts a one-way flow structure to ensure that water can only flow into the water tank from the outside, preventing backflow of water inside the water tank that could cause contamination or damage. The opening and closing of the one-way inlet valve 70 can be automatically controlled based on information from the water level monitoring component.
[0045] Secondly, this utility model also provides a water boiler that uses a pressureless insulated water tank as described in any of the above embodiments, which can effectively improve the heat preservation effect of the water boiler and reduce energy consumption. Here, a water boiler refers to a device used to heat water to boiling point, mainly used to provide directly drinkable boiled water.
[0046] Of course, based on the concept of this utility model, those skilled in the art can also apply the above-mentioned pressureless heat-insulating water tank to other devices with heating and heat-insulating functions, such as common water heaters.
[0047] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this utility model can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.
[0048] Although this document frequently uses terms such as water tank body, exhaust check valve, electric exhaust switch, water outlet faucet, water outlet faucet switch, insulation layer, pressure detection component, controller, heating component, water level monitoring component, temperature detection component, and inlet check valve, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model. The terms "first," "second," etc. (if present), in the description, claims, and accompanying drawings of the embodiments of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A pressureless insulated water tank, characterized in that, include: water bladder body; An exhaust check valve is provided on the water tank body to allow steam to be discharged unidirectionally from the inside of the water tank body; An electric exhaust switch, connected to the exhaust check valve, is used to control the opening and closing of the exhaust check valve; A faucet is connected to the inside of the water tank body and is used to release water from inside the water tank body; A faucet switch, connected to the faucet, is used to control the opening and closing of the faucet; The electric vent switch is linked to the water tap switch, so that when the water tap switch is opened, the electric vent switch automatically opens, allowing the vent check valve to release pressure; when the water tap switch is closed, the electric vent switch automatically closes, stopping the venting.
2. The pressureless insulated water tank according to claim 1, characterized in that: It also includes a heat insulation layer, which is disposed on the outer surface of the water tank body.
3. The pressureless insulated water tank according to claim 2, characterized in that: The thickness of the insulation layer is between 0.5 and 1.5 cm.
4. The pressureless insulated water tank according to claim 1, characterized in that: It also includes a pressure detection component, which is electrically connected to the exhaust check valve and is used to detect pressure changes within the water tank and control the opening and closing of the exhaust check valve.
5. The pressureless insulated water tank according to claim 1, characterized in that: It also includes a controller, which is electrically connected to the electric exhaust switch and the water faucet switch respectively, to acquire the switch status signal of the water faucet switch and control the opening or closing of the electric exhaust switch according to the switch status signal.
6. The pressureless insulated water tank according to claim 5, characterized in that: The controller also has a timer function, which is used to delay the electric exhaust switch for a preset time after the water tap is closed.
7. The pressureless insulated water tank according to claim 1, characterized in that: Both the exhaust check valve and the electric exhaust switch are located on the top of the water tank body.
8. The pressureless insulated water tank according to claim 1, characterized in that, Also includes: A heating component is disposed within the water tank body for heating the water inside the water tank body; A water level monitoring component is installed inside the water tank body to monitor the water level status inside the water tank body; A temperature detection component is disposed within the water tank body to detect the internal temperature state of the water tank body; A one-way inlet valve is installed on the water tank body to control the one-way flow of water into the water tank body.
9. The pressureless insulated water tank according to claim 1, characterized in that: The exhaust passage of the exhaust check valve is equipped with a filter device to prevent impurities from entering the exhaust check valve.
10. A water dispenser, characterized in that: The pressureless insulated water tank as described in any one of claims 1-9 is used.