Hot tank and water supply device

Abstract

The utility model discloses a hot tank and a water supply device.The hot tank comprises a hot tank body, and the hot tank body is of a hollow structure and used for storing a heat exchange medium; a mounting position is arranged in the middle of the hot tank body; the number of the measuring piece is one, and the measuring piece is installed on the installation position arranged in the middle; or a plurality of measuring pieces are arranged; the measuring part is used for measuring the liquid level of the heat exchange medium, even if the hot tank body is slightly inclined, the detected liquid level result of the heat exchange medium cannot be affected, and the problem that water level monitoring on the hot tank is inconvenient is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water supply, in particular to a heat tank and a water supply device. BACKGROUND

[0002] In the field of drinking water equipment, the heat tank, as a core component, plays a crucial role. Its main function is to store hot water and exchange heat with external drinking water through a heat exchanger. The working principle of the heat tank is that the heat exchange medium (usually water or other heat-conducting liquids) inside is heated to a certain temperature and then enters the heat exchanger through a pipeline. In the heat exchanger, these high-temperature media exchange heat with the external drinking water, allowing the drinking water to be heated for the first time. This design effectively improves the heating efficiency of the drinking water, ensuring that users can quickly obtain hot water. It fully utilizes the heat conduction principle, and through the circulation of the internal heat exchange medium (such as water or other high-efficiency heat-conducting liquids), the heat is evenly and efficiently transferred to the external drinking water, significantly improving the efficiency and speed of drinking water heating, ensuring that users can instantly obtain the required hot water.

[0003] However, although the heat tank performs well in drinking water heating, it has obvious shortcomings in water level monitoring. Traditional heat tanks lack precise water level monitoring mechanisms, which causes many inconveniences and potential risks in actual application. When the water level in the heat tank is too low, the effective circulation of the heat exchange medium will be limited, resulting in a decrease in the heat exchange efficiency with the external drinking water, and users may face the problem of insufficient drinking water temperature, especially during high-demand periods, which is particularly significant. In addition, long-term low water level operation may also accelerate the wear and tear of the internal structure of the heat tank, shortening the service life of the equipment. On the contrary, if the water level in the heat tank is too high, it may cause a series of safety problems. The high water level not only increases the internal pressure of the heat tank, but also may cause leakage of the medium during the heat exchange process, causing damage to other parts of the drinking water equipment, and even causing short circuits, fires, and other serious consequences.

[0004] Therefore, the inventor proposes a heat tank to solve the above technical problems CONTENT OF THE UTILITY MODEL

[0005] Therefore, the application provides a heat tank to solve the problem of inconvenient water level monitoring of the heat tank. The second purpose is to provide a water supply device. To achieve one or part or all of the above purposes or other purposes, the application provides a heat tank, which comprises a heat tank body, the heat tank body is a hollow structure, and the heat tank body is used for storing heat exchange medium;

[0006] A mounting position is arranged in the middle of the heat tank body;

[0007] One measuring member is arranged on the mounting position arranged in the middle;

[0008] Alternatively, a plurality of said measuring members are provided for measuring the liquid level of the heat exchange medium.

[0009] Further, the heat tank body comprises a mounting frame, a square tank and a heat preservation frame, the square tank and the heat preservation frame are arranged on the mounting frame, and the heat preservation frame is tightly sleeved on the outer periphery of the square tank.

[0010] According to the above technical solution, the square tank is stably supported by the mounting frame, as the core component, it stores the heat exchange medium and is heated by the heating member to provide energy for hot water supply; the heat preservation frame is tightly sleeved on the outer periphery of the square tank, effectively preventing heat loss and ensuring stable temperature of the medium in the square tank; the three work together, the square tank heats the medium, the heat preservation frame maintains the temperature, and the mounting frame provides support, together realizing the storage, heating and long-time heat preservation of hot water, ensuring that users can obtain hot water at appropriate temperature at any time, and improving the energy efficiency and safety of the heat tank.

[0011] Further, the mounting position is a connecting hole, which is arranged on the square tank.

[0012] According to the above technical solution, in the heat tank body, the mounting position is in the form of a connecting hole arranged on the square tank, so that the measuring member can be accurately installed on the square tank, realizing real-time monitoring of the water level of the heat exchange medium in the heat tank; the connecting hole not only provides a stable mounting point for the measuring member, but also ensures that the measuring member is in full contact with the heat exchange medium in the square tank, thereby accurately reflecting the change in liquid level; through the connecting hole, the measuring member can real-time perceive and transmit the liquid level information, providing timely and accurate data support for the operator, ensuring that the heat tank body is always in the best working condition, and guaranteeing the stable supply of hot water and the safe operation of the equipment.

[0013] Further, the square tank comprises a square tank cylinder and two end plates, the two end plates are fixedly arranged at the two ends of the square tank cylinder, and the two end plates and the square tank cylinder jointly enclose a cavity for storing the heat exchange medium.

[0014] According to the above technical solution, the square tank, as the core heat storage component of the heat tank body, is composed of a square tank cylinder and two end plates, the two end plates are fixedly arranged at the two ends of the square tank cylinder, and the two end plates and the square tank cylinder jointly enclose a cavity for storing the heat exchange medium; this cavity not only provides sufficient storage space for the heat exchange medium, but also ensures stable and uniform heating of the medium during the heating process; when the heating element is started, heat is transferred to the heat exchange medium in the cavity through the square tank cylinder and the end plates, causing it to rapidly heat up and store a large amount of heat energy.

[0015] Further, the square tank and / or the square tank cylinder is provided with a heating member for heating the heat exchange medium in the square tank.

[0016] According to the above technical scheme, when the heating element is started, heat is rapidly transferred to the heat exchange medium, so that the temperature of the heat exchange medium gradually increases and stores heat energy, thereby facilitating preheating of the drinking water and meeting the needs of different users for the temperature of the hot water.

[0017] Further, the measuring member adopts a double-probe water level probe.

[0018] Further, the detecting member adopts a three-probe water level probe.

[0019] In another aspect, the utility model also provides a water supply device, including shell and heat exchange assembly, heat exchange assembly sets up in the shell,

[0020] The heat exchange assembly comprises a heat exchanger.

[0021] Further, the heat tank with a temperature probe is connected with the heat exchanger.

[0022] Further, the first pipeline unit is arranged in the shell.

[0023] The heat exchanger is provided with a drinking water inlet interface, a drinking water outlet interface, a heat exchange water inlet interface and a heat exchange water outlet interface.

[0024] The first pipeline unit comprises a first pipeline, a second pipeline and a third pipeline.

[0025] Further, the second pipeline unit is arranged in the shell. The fourth pipeline is communicated with the fifth pipeline, one end of the fifth pipeline is communicated with the square tank water outlet, the other end of the fifth pipeline is communicated with the heat exchange water inlet interface of the heat exchanger, one end of the sixth pipeline is connected on the heat exchange water outlet interface, and the other end of the sixth pipeline is communicated with the square tank water inlet.

[0026] The fourth pipeline is provided with a valve.

[0027] The fifth pipeline and / or the sixth pipeline is provided with a water pump.

[0028] The embodiment of the present application has the following beneficial effects:

[0029] The application sets the heat tank body as a hollow structure for storing heat exchange medium, which is used for heat exchange of drinking water after being heated, so as to quickly heat the drinking water and meet the demand of the drinking water equipment for hot water; the middle part of the heat tank body is provided with a mounting position, and the mounting position is centrally arranged, which is used for mounting a measuring piece; after the measuring piece is mounted on the mounting position, the purpose is to measure the liquid level of the heat exchange medium in the heat tank body, so that even if the heat tank body is slightly inclined, the detected heat exchange medium liquid level result will not be affected; moreover, the measuring piece can ensure that the liquid level in the heat tank body is kept within a proper range by real-time monitoring of the water level of the heat exchange medium, thereby avoiding the trouble caused by too low or too high liquid level. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Among them:

[0032] Figure 1 It is a whole structure schematic diagram of the heat tank of the utility model;

[0033] Figure 2 It is a split structure schematic diagram of the heat tank and water supply device of the utility model;

[0034] Figure 3 It is a structure schematic diagram of the heat tank of the utility model installs measuring piece;

[0035] Figure 4 It is a structure schematic diagram of the measuring piece in the heat tank of the utility model;

[0036] Figure 5 It is a whole structure schematic diagram of the water supply device of the utility model;

[0037] Figure 6 It is a structure schematic diagram of the water supply device of the utility model after splitting;

[0038] Figure 7 It is a heat exchange assembly structure schematic diagram of the water supply device of the utility model;

[0039] Figure 8 It is a waterway schematic diagram of the water supply device of the utility model

[0040] The heat tank body 1, the mounting frame 11, the square tank 12, the square tank barrel 121, the end plate 122, the heating piece 123, the heat preservation frame 13, the mounting position 2, the measuring piece 3, the mounting head 31, the guide rod 32, the floating ball 33, the connecting seat 4, the shell 5, the heat exchange assembly 6, the heat exchanger 61, the drinking water inlet interface 611, the drinking water outlet interface 612, the heat exchange water inlet interface 613, the heat exchange water outlet interface 614, the first pipeline 71, the second pipeline 72, the third pipeline 73, the fourth pipeline 81, the fifth pipeline 82, the sixth pipeline 83, the water pump 84, the heater 9, the square tank water outlet 110, and the square tank water inlet 111. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0042] The present embodiment provides a heat tank, as shown in Figure 1 , Figure 2 and Figure 3 , comprising a heat tank body 1 and a measuring piece 3. The heat tank body 1 is a hollow structure and stores heat exchange medium. The heat exchange medium is used to heat drinking water after being heated, so as to quickly heat the drinking water and meet the demand of the drinking water equipment for hot water. A mounting position 2 is arranged at the middle of the heat tank body 1.

[0043] In an embodiment, the measuring piece 3 is provided with one, and when the number of the measuring piece 3 is one, the measuring piece 3 is installed on the mounting position 2 arranged at the middle. The central installation of the measuring piece 3 can ensure that the contact state of the measuring piece 3 with the heat exchange medium remains stable when the heat tank body 1 is slightly inclined, thereby reducing the measurement error caused by the change of position.

[0044] In an embodiment, the measuring piece 3 is provided with multiple, and the multiple measuring pieces 3 can be installed in a non-central arrangement. The state of the heat exchange medium can be monitored from multiple different positions and angles, thereby further improving the comprehensiveness and accuracy of measurement, helping to avoid misjudgment and ensuring the stable operation of the heat tank system.

[0045] As a preferred embodiment, as shown in Figure 2As shown, the heat tank body 1 comprises a mounting frame 11, a square tank 12 and a heat preservation frame 13, and the square tank 12 and the heat preservation frame 13 are arranged on the mounting frame 11; the heat preservation frame 13 is sleeved on the outer periphery of the square tank 12. The square tank 12 is stably supported by the mounting frame 11, and the square tank 12 serves as a core component, stores heat exchange medium inside, and provides energy for hot water supply; the heat preservation frame 13 is tightly sleeved on the outer periphery of the square tank 12, effectively prevents heat loss, and ensures that the medium temperature in the square tank 12 is stable.

[0046] As a preferred embodiment, the mounting position 2 is a connecting hole, and the connecting hole is arranged on the square tank 12.

[0047] As a preferred embodiment, the square tank 12 comprises a square tank barrel 121 and two end plates 122, and the two end plates 122 are fixedly arranged at two ends of the square tank barrel 121, and the two end plates 122 and the square tank barrel 121 jointly enclose a cavity for storing heat exchange medium. The cavity provides sufficient storage space for the heat exchange medium.

[0048] As a preferred embodiment, the square tank 12 and / or the square tank barrel 121 are provided with a heating element 123, and the heating element 123 is used for heating the heat exchange medium in the square tank 12. When the heating element 123 is started, heat is rapidly transferred to the heat exchange medium, so that the temperature of the heat exchange medium gradually rises and stores heat energy, thereby facilitating the preheating of drinking water and meeting the needs of different users for hot water temperature.

[0049] As a preferred heating element 123, heating elements such as electric heating pipes, electric heating wires or electric heating films are used, and these heating elements are controlled by a control system and are individually or cooperatively used to heat the medium in the heat tank body 1.

[0050] In another embodiment, the heat tank body 1 can also use an electromagnetic heater as a heating method. The electromagnetic heater uses the principle of electromagnetic induction, generates an alternating magnetic field through a coil, generates eddy current in the magnetic conductive material of the heat tank body 1, and then generates heat to heat the medium. This method has the advantages of fast heating speed, uniform heating, high energy efficiency and easy control. The setting position of the electromagnetic heater can also be flexibly selected. When the electromagnetic heater is arranged inside the heat tank body 1, it can be directly embedded in the heat tank wall of the heat tank body 1 or hung inside the heat tank, so as to ensure that heat can be fully transferred to the medium.

[0051] It is worth noting that the heating element 123 is not limited to the above-mentioned heating element 123, and is not limited to heating the heat exchange medium inside the heat tank body 1. It can also be arranged outside the heat tank body 1 to heat the heat exchange medium, as long as it can achieve the purpose of heating the heat exchange medium in the heat tank body 1.

[0052] In one embodiment, the measuring element 3 employs a dual-probe water level probe. This embodiment uses a dual-probe water level probe to monitor the liquid level. The dual-probe water level probe includes two slender probes with good conductivity, which are installed parallel and fixedly at the center of the heat tank body 1. The lower ends of both probes are in contact with the heat exchange medium. When the liquid level of the heat exchange medium rises or falls, the contact area between the dual probes and the heat exchange medium changes accordingly, thereby changing the current signal in the circuit to achieve the purpose of measuring the liquid level. The dual-probe water level probe is set at the center of the heat tank body 1, so even if the heat tank body 1 tilts slightly, the contact state between the dual-probe water level probe and the heat exchange medium can remain consistent, thereby effectively avoiding misjudgment.

[0053] In one embodiment, the measuring element 3 is a three-probe water level probe; the three-probe water level probe includes three slender probes that are installed in a triangular arrangement on the hot tank body 1. Unlike the two-probe water level probe, the three-probe water level probe is not limited to being installed at the center of the hot tank body 1, but can be installed at different positions on the hot tank body 1. The three-probe water level probe can detect water level changes in a height range and can adapt to complex situations such as the tilt of the hot tank body 1.

[0054] like Figure 4 As shown, the measuring component 3 includes a mounting head 31, a guide rod 32, and a float 33. The mounting head 31 is fixedly connected to the guide rod 32. When the measuring component 3 is set in the mounting position 2, the float 33 can rise or fall along the length of the guide rod 32. A magnet is embedded in the float 33, which can drive the magnet to float up and down with the rise and fall of the liquid level in the heat exchange medium, thereby changing the magnetic field distribution. A reed switch is provided in the mounting head 31, which is used to receive the magnetic signal transmitted from the float 33. The mounting head 31 is connected to a control system or display instrument.

[0055] According to the above technical solution, the measuring element 3 consists of an installation head 31, a guide rod 32, and a float 33, which work together to accurately monitor the water level of the heat exchange medium inside the square tank 12. The installation head 31 is firmly connected to the guide rod 32. When the measuring element 3 is installed at the installation position 2 of the square tank 12, the float 33 moves freely along the guide rod 32 as the water level of the medium rises and falls. A magnet is embedded in the float 33, allowing it to float up and down with the rise and fall of the heat exchange medium liquid level, thereby changing the surrounding magnetic field distribution. A reed switch is installed inside the installation head 31. The reed switch can sensitively receive the magnetic signal transmitted by the magnet of the float 33. When the float 33 changes with the liquid level, the change in the magnetic field caused by the magnet will trigger the reed switch to close or open, thereby sending a signal to the control system or display. In this way, the operator can monitor the water level of the heat exchange medium inside the square tank 12 in real time through the control system or observation display, ensuring the safe and stable operation of the heat tank body 1.

[0056] As a preferred embodiment, the connecting seat 4 is arranged between the mounting head 31 and the guide rod 32, and is connected with the mounting head 31 and the guide rod 32 respectively; the connecting seat 4 is formed with external threads, and the connecting hole is formed with internal threads; the external threads on the connecting seat 4 are matched with the internal threads of the connecting hole. According to the above technical scheme, the connecting seat 4 plays a key role in connection and fixation; the connecting seat 4 is ingeniously arranged between the mounting head 31 and the guide rod 32, and is firmly connected with them respectively; the connecting seat 4 is designed with external threads, and the connecting hole of the square tank 12 is correspondingly formed with internal threads; by rotating the connecting seat 4, the external threads can be tightly matched with the internal threads of the connecting hole, so as to realize the stable connection between the measuring piece 3 and the square tank 12.

[0057] On the other hand, as Figures 5 to 8 The utility model also provides a water supply device, including shell 5 and heat exchange component 6, heat exchange component 6 sets up in shell 5, heat exchange component 6 includes heat exchanger 61, and the hot tank with temperature probe is connected with heat exchanger 61.

[0058] Still include first pipeline unit and second pipeline unit, and first pipeline unit and second pipeline unit set up in shell 5;

[0059] The first pipeline 71 unit includes a first pipeline 71, a second pipeline 72 and a third pipeline 73, the first pipeline 71 is communicated with the drinking water inlet interface 611, one end of the second pipeline 72 is communicated with the drinking water outlet interface 612, the other end of the second pipeline 72 is connected with the heater 9, and the heater 9 is connected with the third pipeline 73. According to the above technical scheme, the drinking water inlet interface 611, the drinking water outlet interface 612, the heat exchange water inlet interface 613 and the heat exchange water outlet interface 614 are arranged on the heat exchanger 61, which provides necessary channels for heat exchange between the heat medium and the drinking water. When starting to operate, the drinking water first enters the heat exchanger 61 through the drinking water inlet interface 611. Inside the heat exchanger 61, the drinking water exchanges heat with the heat medium entering through the heat exchange water inlet interface 613. During this process, the heat medium transfers heat to the drinking water, gradually increasing its temperature, achieving the preheating effect, and facilitating the rapid and large-scale provision of drinking hot water. The preheated drinking water then flows out of the heat exchanger 61 through the drinking water outlet interface 612 and is guided to the heater 9 through the second pipeline 72 of the first pipeline 71 unit for further heating.

[0060] The second pipeline 72 unit comprises a fourth pipeline 81, a fifth pipeline 82 and a sixth pipeline 83, the bottom end of the fourth pipeline 81 communicates with the fifth pipeline 82, because there is loss in the evaporation of water in the heat tank body 1 by heating, water needs to be supplemented when the liquid level drops to a certain position, therefore the fourth pipeline 81 is connected to a water inlet pipe for supplementing water to the heat tank body 1; it needs to be explained that when the heat tank body inputs heat exchange medium to the heat exchanger 61, the valve on the fourth pipeline 81 needs to be closed. The left end of the fifth pipeline 82 communicates with the heat exchange water inlet interface 613 of the heat exchanger 61, the right end of the fifth pipeline 82 communicates with the square tank water outlet 110, the sixth pipeline 83 is connected to the heat exchange water outlet interface 614, the top end of the sixth pipeline 83 communicates with the square tank water inlet 111;

[0061] The fourth pipeline 81 is provided with a valve; the fifth pipeline 82 and / or the sixth pipeline 83 are provided with a water pump 84.

[0062] In addition, in order to overcome the resistance that the heat medium may encounter in the circulation process, and ensure that the heat medium can circulate smoothly in the system, the fifth pipeline 82 and / or the sixth pipeline 83 are also provided with a water pump 84, the addition of the water pump 84 not only improves the operation efficiency, but also makes the whole system more flexible in adjusting the operation state when facing different working conditions. In work, the heat medium in the heat tank body enters the fifth pipeline 82 through the fourth pipeline 81 (in the state that the valve is opened), then the valve is closed, and the heat exchange medium of the heat tank body is pushed to the heat exchanger 61 by the water pump 84, in the heat exchanger 61, the heat medium exchanges heat with the drinking water, transfers heat to the drinking water and preheats it, then the preheated heat medium returns to the heat tank body through the sixth pipeline 83, and a circulation period is completed. Through continuous circulation and preheating, the water supply device provided by the utility model can efficiently utilize the heat energy in the heat medium, and quickly and massively provide drinking water with suitable temperature for users

[0063] The above only discloses the preferred embodiment of the present application, of course, cannot limit the scope of the present application, therefore the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A thermal tank, characterized by, The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium.

2. The thermal tank of claim 1, wherein: The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12).

3. The thermal tank of claim 2, wherein: The mounting position (2) is a connecting hole, which is arranged on the square tank (12).

4. The thermal tank of claim 2, wherein: The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium.

5. The thermal tank of claim 2, wherein: The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12).

6. The thermal tank of claim 1, wherein: The measuring element (3) adopts a double-probe water level probe.

7. The thermal tank of claim 1, wherein: The measuring element (3) adopts a three-probe water level probe.

8. A water supply device characterized by comprising: The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); 9. The water supply device according to claim 8, characterized in that: a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium. The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12). The mounting position (2) is a connecting hole, which is arranged on the square tank (12). The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium. The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12). The measuring element (3) adopts a double-probe water level probe. The measuring element (3) adopts a three-probe water level probe. The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium. The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12). The mounting position (2) is a connecting hole, which is arranged on the square tank (12). The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium. The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12). The measuring element (3) adopts a double-probe water level probe. The measuring element (3) adopts a three-probe water level probe. The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium. The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12). The mounting position (2) is a connecting hole, which is arranged on the square tank (12). The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium. The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12). The measuring element (3) adopts a double-probe water level probe. The measuring element (3) adopts a three-probe water level probe. The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium. The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12). The mounting position (2) is a connecting hole, which is arranged on the square tank (12). The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium. The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12). The measuring element (3) adopts a double-probe water level probe. The measuring element (3) adopts a three-probe water level probe. The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are arranged; the measuring element (3) is used for measuring the liquid level of the heat exchange medium. The heat tank body (1) comprises a mounting rack (11), a square tank (12) and a heat preservation frame (13), the square tank (12) and the heat preservation frame (13) are arranged on the mounting rack (11), and the heat preservation frame (13) is sleeved on the outer periphery of the square tank (12). The mounting position (2) is a connecting hole, which is arranged on the square tank (12). The square tank (12) comprises a square tank cylinder (121) and two end plates (122), the two end plates (122) are fixedly arranged at two ends of the square tank cylinder (121), and the two end plates (122) and the square tank cylinder (121) jointly enclose a cavity for storing heat exchange medium. The square tank (12) is internally and / or externally provided with a heating element (123) for heating the heat exchange medium in the square tank (12). The measuring element (3) adopts a double-probe water level probe. The measuring element (3) adopts a three-probe water level probe. The utility model relates to a heat tank, which comprises: a heat tank body (1) in a hollow structure for storing heat exchange medium; a mounting position (2) is arranged in the middle of the heat tank body (1); a measuring element (3) is arranged on the mounting position (2) arranged in the middle; alternatively, a plurality of measuring elements (3) are 10. The water supply device according to claim 9, characterized in that: Also include the second pipeline unit, the second pipeline unit includes fourth pipeline (81), fifth pipeline (82) and sixth pipeline (83), the hot tank body (1) is equipped with square tank water outlet (110) and square tank water inlet (111), the fourth pipeline (81) is communicated with the fifth pipeline (82), one end of the fifth pipeline (82) is communicated with square tank water outlet (110), the other end of the fifth pipeline (82) is communicated with the heat exchange water inlet interface (613) of heat exchanger (61), one end of the sixth pipeline (83) is connected on the heat exchange water outlet interface (614), the other end of the sixth pipeline (83) is communicated with the square tank water inlet (111); The fourth pipeline (81) is provided with a valve; the fifth pipeline (82) and / or sixth pipeline (83) are provided with a water pump (84).

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