Pressure hot tank assembly structure

Abstract

The utility model relates to the technical field of hot water equipment, in particular to a pressure hot tank assembly structure. Comprising a tank body, a heating body is arranged in the tank body, and a water inlet, a water outlet and a pressure release valve are arranged on the tank body; the pipeline on the water inlet is connected with a cold water electromagnetic valve, and the pipeline on the water outlet is connected with a hot water electromagnetic valve; a first water level sensor is arranged in the tank body, the first water level sensor is arranged at a high water level line of the tank body, a steam cavity is formed in an inner cavity of the tank body above the high water level line, and a pressure release valve is communicated with the steam cavity; according to the pressure hot tank assembly structure, the cold water electromagnetic valve, the hot water electromagnetic valve and the pressure release valve are all normally closed, so that the inner cavity of the tank body is sealed, the heating body heats water in the tank body, water vapor generated by water boiling exists in the steam cavity, the pressure intensity in the tank body is larger than the external air pressure, and the boiling point of the water is increased; the pressure release valve can be adaptively adjusted according to the local environment, so that the hot water equipment can be used in regions with different altitudes.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot water equipment technical field, especially point to a kind of pressure hot tank assembly structure. BACKGROUND

[0002] Water heater refers to the temperature of cold water is increased to become hot water in a certain time through various physical principles, and it can be divided into electric water heater, gas water heater, solar water heater, magnetic energy water heater, air energy water heater and heating water heater according to different principles. Among them, electric water heater is most widely used due to relatively simple structure and good safety. The drinking water heater used in various public places mainly includes a water tank and an electric heating tube. The water tank is connected to a water source to store water inside. The electric heating tube is arranged in the water tank to heat the water. The water tank is connected to a water outlet faucet to output hot water for users to drink. It is known that the boiling point of water is 100 DEG C under normal atmospheric pressure in low-altitude areas, and the boiling point of water is proportional to atmospheric pressure. Therefore, in high-altitude areas, the boiling water boiled by a conventional drinking machine cannot reach 100 DEG C.

[0003] Therefore, some products on the market increase a booster pump or other pressure device at the water inlet end to increase the pressure in the water tank, so that the required atmospheric pressure for boiling water is reached. However, as the water temperature in the water tank increases, the water itself expands and generates pressure, and the pressure at the water inlet end is also applied, so that the pressure in the water tank continuously increases, which easily leads to safety hazards. The conventional pressure relief safety valve cannot adjust the pressure in the water tank according to different altitudes or atmospheric pressures, and the pressure in the water tank is uncontrollable, so that the boiled water cannot reach 100 DEG C required by users.

[0004] Therefore, the prior art still needs to be improved and developed. INVENTION CONTENTS

[0005] The utility model aims at the defects and deficiencies of the prior art, and provides a pressure hot tank assembly structure which is reasonable in structure, widely used in application scenarios and safe and reliable.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The pressure hot tank assembly structure comprises a tank body, a heating body arranged in the tank body, a water inlet, a water outlet and a pressure relief valve arranged on the tank body, a cold water electromagnetic valve connected to a pipeline of the water inlet, a hot water electromagnetic valve connected to a pipeline of the water outlet, a first water level sensor arranged in the tank body, the first water level sensor being arranged at a high water level line of the tank body, a steam chamber formed by an inner cavity of the tank body above the high water level line, and the pressure relief valve being communicated with the steam chamber.

[0008] The cold water electromagnetic valve, the hot water electromagnetic valve and the pressure relief valve are all normally closed, so that the inner cavity of the tank is sealed, the heating body heats the water inside the tank, and the water vapor generated by the boiling of the water exists in the steam chamber, so that the pressure inside the tank is greater than the external air pressure to increase the boiling point of the water. In particular, the pressure relief valve can be adjusted according to the local environment to meet the use of the hot water equipment in different altitudes; the overall cost is low, and the application is more widely.

[0009] Specifically, the water inlet is connected to a water source through a pipeline, and a cold water electromagnetic valve is arranged on the pipeline. Opening the cold water electromagnetic valve can inject cold water into the tank.

[0010] The heating body is usually an electric heating tube for heating the water in the tank to reach the boiling temperature. It can be understood that the boiling temperature of the water is related to the internal pressure of the tank. After the water boils, the internal pressure of the tank will increase and exceed the critical value of the pressure relief valve. The set critical value of the pressure relief valve is usually greater than one standard atmosphere, so that the water temperature in the tank reaches or exceeds 100℃. It can be understood that when the pressure in the tank is too high, the pressure relief valve is automatically opened to release the pressure in the steam chamber.

[0011] The water outlet is connected to a faucet through a pipeline, and a hot water electromagnetic valve is arranged on the pipeline. Opening the hot water electromagnetic valve can make the hot water in the tank pass through the faucet for the user to use.

[0012] According to the above scheme, the tank is provided with a water taking pipe, the outlet end of the water taking pipe is connected to the water outlet, and the inlet end of the water taking pipe is arranged below the high water level line of the tank. As described above, after the tank is filled with water, space is left at the top of the inner cavity of the tank as a steam chamber. At this time, the water level in the tank is the high water level line. It can be understood that the water taking pipe has a certain length, so that the outlet end of the water taking pipe is connected to the water outlet, and the inlet end of the water taking pipe is immersed in the hot water below the high water level line, avoiding the high-temperature water vapor in the steam chamber entering the water taking pipe and preventing safety risks.

[0013] Specifically, when the hot water electromagnetic valve is opened, the cold water electromagnetic valve is synchronously opened. At this time, under the action of the water source pressure and the internal pressure of the tank, the hot water in the tank is squeezed out from the water outlet through the water taking pipe, and the user can use the hot water through the faucet. Of course, as the hot water is lost, cold water enters the tank through the water inlet at the same time, so that the water level in the tank is maintained at the high water level line, avoiding the high-temperature water vapor in the steam chamber entering the water taking pipe and preventing safety risks.

[0014] It can be understood that when hot water is used, the cold water electromagnetic valve and the hot water electromagnetic valve are opened synchronously, cold water enters the tank from the water inlet, and hot water flows out from the water outlet. Even if the heating body works at the same time, the water temperature in the tank will gradually decrease. When the water temperature in the tank is lower than the set temperature, the cold water electromagnetic valve and the hot water electromagnetic valve are closed at the same time, and the heating body continues to heat the water in the tank.

[0015] According to the above scheme, the water taking pipe is a hose, and a floating ball is arranged on the inlet end of the water taking pipe. In order to ensure that the water temperature flowing out of the water outlet is stable, the cold water electromagnetic valve can be closed, so that the hot water in the tank is squeezed out of the water taking pipe under the action of internal pressure, and then the water level in the tank will gradually decrease. The floating ball can make the inlet end of the water taking pipe always below the real-time water level line in the tank. Of course, when the internal pressure of the tank decreases to close to the external pressure, hot water cannot flow out of the water taking pipe. At this time, if hot water is still needed, the cold water electromagnetic valve can be opened again, and the hot water in the tank can continue to be output under the pressure of the water source (tap water), but the temperature of the hot water flowing out at this time is lower than 100°C.

[0016] According to the above scheme, the tank is provided with an exhaust valve, and the exhaust valve communicates with the steam chamber. As described above, the hot water electromagnetic valve and the cold water electromagnetic valve are normally closed, and when water is replenished, the cold water electromagnetic valve and the exhaust valve are opened at the same time, so that the pressure in the tank is discharged, thereby improving the water replenishment speed. In particular, if the hot water electromagnetic valve is in an open state, after the exhaust valve connects the steam chamber to the outside, the siphon effect at the water taking pipe is avoided.

[0017] According to the above scheme, the upper end of the tank is provided with a top cover, the water outlet, the pressure relief valve and the exhaust valve are arranged on the top cover, and the internal cavity of the tank between the high water level line and the top cover constitutes the steam chamber. The top cover serves as a mounting structure of the above-mentioned components, and forms the steam chamber in the upper part of the internal cavity of the tank. It can be understood that the electrode terminal of the heating body is also mounted on the top cover.

[0018] According to the above scheme, the tank is provided with a temperature sensor and a thermal cut-off, the temperature sensor is used to detect the water temperature in the tank, and sends a signal when the water temperature reaches the set temperature (108°C), so as to control the heating body to stop working. When the water temperature in the tank is lower than the set temperature (104°C), the heating body starts to heat. It can be understood that the temperature sensor can monitor the water temperature in the tank in real time, and of course the temperature sensor can be connected to a controller or a temperature display panel. The thermal cut-off is connected to the heating body, and when an abnormal working condition occurs, such as dry burning of the heating body caused by lack of water in the tank, or the water temperature in the tank exceeds the standard (more than 110°C) due to failure of the control circuit of the temperature sensor, the thermal cut-off cuts off the working circuit of the heating body to prevent accidents.

[0019] According to the above scheme, the lower end of the tank body is provided with a bottom plate, and the water inlet is arranged on the bottom plate; the bottom plate is provided with a water baffle, and the water baffle is arranged in pairs with the water inlet. It can be understood that the heating body is usually arranged at the bottom of the tank body, and when cold water enters from the water inlet, the water flow direction is changed by the action of the water baffle, so that the cold water does not directly hit the upper part of the tank body, so that the temperature of the hot water at the water outlet is quickly reduced.

[0020] According to the above scheme, the second water level sensor is arranged in the tank body, and the second water level sensor is arranged at the low water level line of the tank body. In order to stabilize the water temperature flowing out of the water outlet, the cold water electromagnetic valve can be closed, so that the hot water in the tank body is squeezed out from the water taking pipe under the action of internal pressure, and then the water level in the tank body will gradually decrease, and the inlet end of the water taking pipe can always be below the real-time water level line in the tank body. When the hot water in the tank body is used to a certain extent, the second water level sensor can be used to detect the lowest water level in the tank body, so that the cold water electromagnetic valve is opened for water replenishment. Generally, the second water level sensor is used to avoid dry burning of the heating body, that is, the water level in the tank body cannot be lower than the heating body, and if the water level in the tank body is too low, the thermal circuit breaker will close the working circuit of the heating body to prevent dry burning.

[0021] According to the above scheme, the utility model still includes controller, the controller has logic circuit to realize the working process of above -mentioned parts, and the controller is connected heating body, cold water electromagnetic valve, hot water electromagnetic valve, pressure relief valve, exhaust valve, first water level sensor, second water level sensor, temperature sensor and thermal circuit breaker through line respectively.

[0022] The utility model discloses a kind of pressure hot tank assembly structures, cold water electromagnetic valve, hot water electromagnetic valve and pressure relief valve are all normally closed setting, so that tank body inner cavity is sealed, heating body heats the water inside tank body, water vapor produced by water boiling exists in steam cavity, so that the pressure in tank body is greater than external air pressure to improve the boiling point of water;The pressure relief valve can be adapted to adjust according to local environment, satisfy hot water equipment in different altitude area use;Overall cost is low, application is more extensive. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is the overall decomposition structure schematic view of the utility model;

[0024] Fig. 2 It is the tank body section structure schematic view of the utility model;

[0025] Fig. 3 It is the working principle schematic view of the utility model.

[0026] In the drawing:

[0027] 1. Tank body; 2. Water intake pipe; 3. Temperature sensor; 11. Heating element; 12. Water inlet; 13. Water outlet; 14. Pressure relief valve; 15. Air vent valve; 16. Top cover; 17. Base plate; 31. Thermal circuit breaker; 100. Steam chamber; 101. First water level sensor; 102. Second water level sensor; 120. Cold water solenoid valve; 130. Hot water solenoid valve; 170. Water baffle. Detailed Implementation

[0028] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0029] like Figs. 1-3 As shown, the pressure heating tank assembly structure of this utility model includes a tank body 1, a heating element 11 inside the tank body 1, and a water inlet 12, a water outlet 13, and a pressure relief valve 14 on the tank body 1; a pipe on the water inlet 12 is connected to a cold water solenoid valve 120, and a pipe on the water outlet 13 is connected to a hot water solenoid valve 130; a first water level sensor 101 is provided inside the tank body 1, and the first water level sensor 101 is located at the high water level line of the tank body 1. The inner cavity of the tank body 1 above the high water level line forms a steam chamber 100, and the pressure relief valve 14 is connected to the steam chamber 100.

[0030] The cold water solenoid valve 120, hot water solenoid valve 130, and pressure relief valve 14 are all normally closed, ensuring a sealed interior cavity for the tank 1. The heating element 11 heats the water inside the tank 1, and the steam generated from the boiling water exists within the steam chamber 100, causing the pressure inside the tank 1 to exceed the external air pressure, thus raising the boiling point of the water. Notably, the pressure relief valve 14 can be adapted and adjusted according to the local environment, meeting the needs of hot water equipment at different altitudes; the overall cost is low, and its application is more widespread.

[0031] Specifically, the water inlet 12 is connected to a water source through a pipeline, and a cold water solenoid valve 120 is provided on the pipeline. Opening the cold water solenoid valve 120 can inject cold water into the tank 1.

[0032] The heating element 11 is typically an electric heating tube, used to heat the water inside the tank 1 to its boiling point. It is understood that the boiling point of the water is related to the internal pressure of the tank 1. After the water boils, the internal pressure of the tank 1 increases and exceeds the critical value of the pressure relief valve 14. The set critical value of the pressure relief valve 14 is usually greater than one standard atmosphere, causing the water temperature inside the tank 1 to reach or exceed 100°C. It is understood that when the pressure inside the tank 1 is too high, the pressure relief valve 14 automatically opens to release the pressure within the steam chamber 100.

[0033] The outlet 13 is connected to a faucet via a pipe, and a hot water solenoid valve 130 is installed on the pipe. Opening the hot water solenoid valve 130 allows the hot water in the tank 1 to be supplied to the user through the faucet.

[0034] The water taking pipe 2 is provided in the tank body 1, the outlet end of the water taking pipe 2 is connected with the water outlet 13, and the inlet end of the water taking pipe 2 is arranged below the high water level line of the tank body 1. As described above, after the tank body 1 is filled with water, the top of the inner cavity of the tank body 1 is still left as the steam cavity 100, and at this time, the water level in the tank body 1 is the high water level line. It can be understood that the water taking pipe 2 has a certain length, so that the outlet end of the water taking pipe 2 is connected with the water outlet 13, and the inlet end of the water taking pipe 2 is immersed in the hot water below the high water level line, so as to avoid that the high-temperature water vapor in the steam cavity 100 enters the water taking pipe 2 and prevent safety risks.

[0035] Specifically, when the hot water electromagnetic valve 130 is opened, the cold water electromagnetic valve 120 is synchronously opened, at this time, under the action of the water source pressure and the internal pressure of the tank body 1, the hot water in the tank body 1 is squeezed out from the water outlet 13 through the water taking pipe 2, and the user can use the hot water through the faucet. Of course, with the loss of hot water, cold water enters the tank body 1 through the water inlet 12 at the same time, so that the water level in the tank body 1 is maintained at the high water level line, avoiding that the high-temperature water vapor in the steam cavity 100 enters the water taking pipe 2 and preventing safety risks.

[0036] It can be understood that when using hot water, the cold water electromagnetic valve 120 and the hot water electromagnetic valve 130 are synchronously opened, so that the cold water enters the tank body 1 from the water inlet 12, and the hot water flows out from the water outlet 13, even if the heating body 11 works at the same time, the water temperature in the tank body 1 will gradually decrease. When the water temperature in the tank body 1 is lower than the set temperature, the cold water electromagnetic valve 120 and the hot water electromagnetic valve 130 are closed at the same time, and the heating body 11 continues to heat the water in the tank body 1.

[0037] The water taking pipe 2 is a hose, and a floating ball is arranged on the inlet end of the water taking pipe 2. In order to ensure that the water temperature flowing out of the water outlet 13 is stable, the cold water electromagnetic valve 120 can be closed, so that the hot water in the tank body 1 is squeezed out from the water taking pipe 2 under the action of the internal pressure, and then the water level in the tank body 1 will gradually decrease, and the floating ball can make the inlet end of the water taking pipe 2 always below the real-time water level line in the tank body 1. Of course, when the internal pressure of the tank body 1 decreases to close to the external pressure, the hot water cannot flow out from the water taking pipe 2, at this time, if the hot water still needs to be used, the cold water electromagnetic valve 120 can be opened again, and under the action of the water source (tap water) pressure, the hot water in the tank body 1 can continue to be output, but at this time, the temperature of the hot water flowing out is lower than 100°C.

[0038] The tank body 1 is provided with an exhaust valve 15, which is communicated with the steam chamber 100. As described above, the hot water electromagnetic valve 130 and the cold water electromagnetic valve 120 are normally closed, and when the water is replenished, the cold water electromagnetic valve 120 and the exhaust valve 15 are opened at the same time, so that the pressure in the tank body 1 is discharged, thereby improving the water replenishment speed. In particular, if the hot water electromagnetic valve 130 is in an open state, the exhaust valve 15 is communicated with the outside after the steam chamber 100, thereby avoiding the siphon effect at the water taking pipe 2.

[0039] The upper end of the tank body 1 is provided with a top cover 16, and the water outlet 13, the pressure relief valve 14 and the exhaust valve 15 are arranged on the top cover 16. The inner cavity of the tank body 1 between the high water level line and the top cover 16 constitutes the steam chamber 100. The top cover 16 serves as a mounting structure of the above-mentioned components, and forms the steam chamber 100 in the upper part of the inner cavity of the tank body 1. It can be understood that the electrode terminal of the heating body 11 is also mounted on the top cover 16.

[0040] The tank body 1 is provided with a temperature sensor 3 and a thermal cut-off 31. The temperature sensor 3 is used to detect the water temperature in the tank body 1, and sends a signal when the water temperature reaches a set temperature (108℃), so as to control the heating body 11 to stop working. When the water temperature in the tank body 1 is lower than the set temperature (104℃), the heating body 11 starts to heat. It can be understood that the temperature sensor 3 can monitor the water temperature in the tank body 1 in real time, and of course the temperature sensor 3 can be connected with a controller or a temperature display panel. The thermal cut-off 31 is connected to the heating body 11, and when an abnormal working condition occurs, such as dry burning of the heating body 11 caused by water shortage of the tank body 1, or the control circuit of the temperature sensor 3 fails to cause the water temperature in the tank body 1 to exceed the standard (more than 110℃), the thermal cut-off 31 cuts off the working circuit of the heating body 11 to prevent accidents.

[0041] The lower end of the tank body 1 is provided with a bottom plate 17, and the water inlet 12 is arranged on the bottom plate 17. The bottom plate 17 is provided with a water baffle 170, which is arranged in pair with the water inlet 12. It can be understood that the heating body 11 is usually arranged at the bottom of the tank body 1, and when the cold water enters from the water inlet 12, the water flow direction is changed by the action of the water baffle 170, so as to avoid that the cold water directly hits the upper part of the tank body 1, thereby causing the temperature of the hot water at the water outlet 13 to rapidly decrease.

[0042] The second water level sensor 102 is arranged at the low water level line of the tank body 1. In order to stabilize the water temperature flowing out of the water outlet 13, the cold water electromagnetic valve 120 can be closed, and the hot water in the tank body 1 is squeezed out from the water taking pipe 2 under the action of the internal pressure, so that the water level in the tank body 1 gradually decreases, and the floating ball can make the inlet end of the water taking pipe 2 always below the real-time water level line in the tank body 1. When the hot water in the tank body 1 is used to a certain extent, the second water level sensor 102 can be used to detect the lowest water level in the tank body 1, so that the cold water electromagnetic valve 120 is opened to supplement water. Generally, the second water level sensor 102 is used to avoid dry burning of the heating body 11, that is, the water level in the tank body 1 cannot be lower than the heating body 11, and if the water level in the tank body 1 is too low, the thermal circuit breaker 31 closes the working circuit of the heating body 11 to prevent dry burning.

[0043] The utility model also includes controller, the controller has logic circuit to realize the working process of above -mentioned parts, and the controller is connected heating body 11, cold water electromagnetic valve 120, hot water electromagnetic valve 130, pressure relief valve 14, exhaust valve 15, first water level sensor 101, second water level sensor 102, temperature sensor 3 and thermal circuit breaker 31 respectively through circuit.

[0044] The above is only the preferred implementation of the utility model, so equivalent changes or modifications made according to the structure, features and principles of the patent application range of the utility model are included in the patent application range of the utility model.

Claims

1. A pressure tank assembly structure, comprising a tank body (1) provided with a heating body (11) therein, the tank body (1) being provided with a water inlet (12), a water outlet (13) and a pressure relief valve (14); characterized in that, a cold water electromagnetic valve (120) is connected to the pipeline of the water inlet (12), and a hot water electromagnetic valve (130) is connected to the pipeline of the water outlet (13); a first water level sensor (101) is arranged in the tank body (1), the first water level sensor (101) being arranged at a high water level line of the tank body (1), and a steam chamber (100) being formed in the tank body (1) above the high water level line, the pressure relief valve (14) being communicated with the steam chamber (100).

2. The pressure tank assembly structure according to claim 1, wherein a water taking pipe (2) is arranged in the tank body (1), an outlet end of the water taking pipe (2) being connected to the water outlet (13), and an inlet end of the water taking pipe (2) being arranged below the high water level line of the tank body (1).

3. The pressure tank assembly structure according to claim 1, wherein an exhaust valve (15) is arranged on the tank body (1), the exhaust valve (15) being communicated with the steam chamber (100).

4. The pressure tank assembly structure according to any one of claims 1 to 3, characterized by a top cover (16) is arranged at an upper end of the tank body (1), the water outlet (13), the pressure relief valve (14) and the exhaust valve (15) being arranged on the top cover (16), and a cavity of the tank body (1) between the high water level line and the top cover (16) forming the steam chamber (100).

5. The pressure tank assembly structure according to claim 1, wherein a temperature sensor (3) and a thermal cutoff (31) are arranged on the tank body (1).

6. The pressure tank assembly structure according to claim 1, wherein a bottom plate (17) is arranged at a lower end of the tank body (1), the water inlet (12) being arranged on the bottom plate (17), a water baffle (170) being arranged on the bottom plate (17) and being arranged in pair with the water inlet (12).

7. The pressure tank assembly structure according to claim 1, wherein a second water level sensor (102) is arranged in the tank body (1), the second water level sensor (102) being arranged at a low water level line of the tank body (1).

8. The pressure tank assembly structure according to claim 1, wherein a controller is further included, the controller being connected to the heating body (11), the cold water electromagnetic valve (120), the hot water electromagnetic valve (130), the pressure relief valve (14), the exhaust valve (15), the first water level sensor (101), the second water level sensor (102), the temperature sensor (3) and the thermal cutoff (31) through lines.

9. The pressure tank assembly structure according to claim 2, wherein the water taking pipe (2) is a hose, and a float ball is arranged on the inlet end of the water taking pipe (2).

Images