Liquid supplementing device and heating system

Abstract

The utility model relates to the technical field of heating equipment, in particular to a liquid supplementing device and a heating system.The liquid supplementing device comprises a shell, a liquid supplementing device and a liquid supplementing device, the diaphragm capsule is arranged in the shell, the diaphragm capsule divides the cavity into a liquid storage cavity and an expansion cavity, and the liquid storage cavity and the expansion cavity are not communicated with each other; the liquid storage cavity is filled with an anti-freezing solution; the shell is provided with a liquid supplementing opening and a liquid injection opening, and the liquid supplementing opening and the liquid injection opening are communicated with the liquid storage cavity. According to the fluid supplementing device, the anti-freezing fluid is always located in the fluid storage cavity in the closed environment, the anti-freezing fluid is isolated from air under the condition that fluid supplementing and expansion requirements of the heating system are met, impurities are prevented from being mixed into the anti-freezing fluid, damage to equipment and pipelines of the system after the anti-freezing fluid goes bad can be effectively reduced, and the service life of the system is prolonged. And leakage caused by accelerated aging of the sealing element due to acidity enhancement of the anti-freezing solution can be avoided.

Description

Technical Field

[0001] This application relates to the field of heating equipment technology, and in particular to a liquid replenishment device and a heating system. Background Technology

[0002] In recent years, with the rapid development of coal-to-electricity conversion, ultra-low temperature air source heat pump heating equipment and solar heating equipment have been widely used by ordinary users, especially in the north, where these heating methods are more prevalent. Currently, most winter heating equipment uses water circulation. If there is a sudden power outage or no one is home during the cold winter, the equipment and circulation pipes are particularly prone to freezing and damage. This can result in pipe damage or even complete equipment failure. The best solution is to replace the circulating water with antifreeze, which can completely solve the problem of equipment freezing and damage in winter.

[0003] However, after replacing the antifreeze, the replenishment method still uses a high-level water tank. These tanks are often open or simply have a cover. However, prolonged exposure of antifreeze to air in an open system can lead to a series of problems. Not only does it easily attract impurities, such as dust, dust, and microorganisms (e.g., sulfate-reducing bacteria and iron bacteria), but microbial metabolism produces acidic substances and hydrogen sulfide, exacerbating corrosion. Dust, particulate matter, and insects from the air also enter the antifreeze, forming suspended solids that wear down pump impellers and clog precision valves. These solids deposit in low-flow-rate areas of the pipeline, reducing heat exchange efficiency. Long-term contact between antifreeze and air can also directly affect system performance, equipment lifespan, and even safety. For example, when antifreeze (such as ethylene glycol or propylene glycol) comes into contact with oxygen in the air, it undergoes an oxidation reaction, producing acidic substances such as formic acid, acetic acid, and oxalic acid. This lowers the pH of the antifreeze, increasing its acidity and accelerating corrosion of seals, metal pipes, pumps, valves, and heat exchangers. In addition, the viscosity of antifreeze increases, its fluidity decreases, and its heat exchange efficiency reduces.

[0004] Furthermore, under high-temperature conditions, ethylene glycol may decompose into corrosive products such as oxalic acid, releasing toxic substances. Contact with these substances can cause skin or respiratory irritation. Simultaneously, some volatile components, such as additives, corrosion inhibitors, and antioxidants, may escape into the air, leading to a decrease in antifreeze concentration, reduced freezing point protection, and increased susceptibility to freezing and cracking of pipes in winter. The loss of additives further weakens the protective performance. Utility Model Content

[0005] The purpose of this application is to provide a liquid replenishment device and a heating system, so as to solve to some extent the technical problems existing in the prior art, such as antifreeze being easily exposed to air, easily mixed with impurities, and easily affecting the lifespan of antifreeze and heating equipment.

[0006] This application provides a fluid replenishment device, comprising: a housing, wherein the interior of the housing forms a cavity;

[0007] A diaphragm capsule is disposed within the outer shell, dividing the cavity into a liquid storage chamber and an expansion chamber, which are not interconnected; the liquid storage chamber is filled with antifreeze.

[0008] The outer shell is provided with a liquid replenishment port and a liquid injection port, which are respectively connected to the liquid storage chamber.

[0009] In the above technical solution, the outer shell further includes:

[0010] The upper housing is provided with a first connecting portion;

[0011] The lower housing is provided with a second connecting portion that can be adapted and connected to the first connecting portion;

[0012] The edge of the diaphragm capsule is pressed between the first connecting portion and the second connecting portion;

[0013] A sealing element is provided between the first connecting part and the second connecting part.

[0014] In any of the above technical solutions, the inner wall of the outer shell is provided with a connecting part, the connecting part is arranged along the circumference of the outer shell, and the diaphragm capsule is connected to the connecting part.

[0015] In any of the above technical solutions, the fluid replenishment device further includes:

[0016] An electrical control box is disposed within the expansion cavity;

[0017] An electronic control board, wherein the electronic control board is disposed in the electronic control box;

[0018] A detection component, disposed in the expansion cavity, comprises:

[0019] A pressure detection device, which is connected to the electronic control board;

[0020] A liquid shortage detection device is connected to the electronic control board.

[0021] In any of the above technical solutions, the liquid shortage detection device further includes:

[0022] A pressure detection element, which is connected to the electronic control board;

[0023] A gravity ball, which is connected to the pressure detection element via a flexible drawstring.

[0024] In any of the above technical solutions, the fluid replenishment device further includes an alarm, which is disposed in the housing and connected to the electronic control board.

[0025] In any of the above technical solutions, the fluid replenishment device further includes:

[0026] The injection tube is disposed at the injection port;

[0027] A pressure gauge is installed in the injection tube.

[0028] In any of the above technical solutions, the liquid replenishment device further includes a level gauge, which is disposed in the housing.

[0029] In any of the above technical solutions, the liquid replenishment device further includes a cover, the outer shell is provided with an opening, and the cover is disposed in the opening.

[0030] This application also provides a heating system including the liquid replenishment device described in any of the above technical solutions, and thus has all the beneficial technical effects of the liquid replenishment device, which will not be repeated here.

[0031] Compared with the prior art, the beneficial effects of this application are as follows:

[0032] The fluid replenishment device provided in this application includes: a housing with an internal cavity; a diaphragm capsule disposed inside the housing, which divides the cavity into a storage chamber and an expansion chamber, which are not connected to each other; the storage chamber is filled with antifreeze; and the housing is provided with a replenishment port and an injection port, which are respectively connected to the storage chamber.

[0033] The antifreeze replenishment device provided in this application keeps the antifreeze in a closed storage chamber, ensuring the replenishment and expansion needs of the heating system while isolating the antifreeze from contact with air, preventing impurities from mixing into the antifreeze, effectively reducing the damage to the system's equipment and pipelines caused by antifreeze deterioration, and also preventing the antifreeze from becoming more acidic and accelerating the aging of seals, thus avoiding leakage.

[0034] The heating system provided in this application includes the aforementioned fluid replenishment device. Therefore, this fluid replenishment device can effectively prevent the antifreeze from being in an open environment or coming into contact with air, which could lead to impurities or deterioration in the antifreeze, affecting the stability of system operation, and also improve the stability of system operation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the fluid replenishment device provided in the embodiments of this application.

[0037] Figure label:

[0038] 1-Electrical control board, 2-Pressure detection device, 3-Pressure detection component, 4-Cover, 5-Alarm, 6-Electrical control box, 7-Pull cable, 8-Pressure gauge, 9-Screw cap, 10-Injection pipe, 11-Diaphragm capsule, 12-Reservoir, 13-Gravity ball, 14-Replenishment port, 15-Level gauge, 16-Lower housing, 17-Second connection part, 18-Seal, 19-First connection part, 20-Fasting bolt, 21-Upper housing, 22-Hinge, 23-Expansion chamber. Detailed Implementation

[0039] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0040] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0041] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] The following reference Figure 1 The fluid replenishment device and heating system described in the embodiments of this application are explained.

[0045] Example 1, see Figure 1 As shown, Embodiment 1 of this application provides a fluid replenishment device. This device includes a shell and a diaphragm capsule 11. The shell has an internal cavity. The diaphragm capsule 11 is sheet-shaped or bowl-shaped, and its diameter is larger than the inner diameter of the shell. The side wall of the shell has a replenishment port 14 and an injection port. The replenishment port 14 is used to connect to a heating system to supply antifreeze to the system. The injection port is used to replenish antifreeze into the shell. The diaphragm capsule 11 is disposed inside the shell, dividing the shell cavity into an independent, non-communicating storage chamber 12 and an expansion chamber 23. Preferably, the expansion chamber 23 is located above the storage chamber 12, and the diaphragm capsule 11 is connected to the inner wall of the shell, so that the storage chamber 12 forms a sealed space for storing antifreeze. The injection port and replenishment port 14 are respectively connected to the storage chamber 12. The diaphragm capsule 11 is flexible and has a certain degree of elasticity. The storage chamber 12 is filled with antifreeze. The diaphragm capsule 11 can fall on the surface of the antifreeze. As the amount and volume of antifreeze in the storage chamber 12 change, the diaphragm capsule 11 can float up and down, so that the volume of the storage chamber 12 can change dynamically. The expansion chamber 23 can provide sufficient space for the expansion and floating of the diaphragm capsule 11 and the changes in the surface of the antifreeze, so that the sealed space formed by the storage chamber 12 is always filled with antifreeze, thereby effectively preventing the antifreeze from contacting air.

[0046] Specifically, the outer shell includes an upper shell 21 and a lower shell 16. The upper shell 21 has a cylindrical structure with openings at both ends. A cover 4 is provided at the upper opening of the upper shell 21. Preferably, the cover 4 is hinged to the upper shell 21 by a hinge 22, which is a hinge or hinge chain, allowing the cover 4 to open or close relative to the upper opening of the upper shell 21. A first connecting part 19 is provided at the lower opening of the upper shell 21. The first connecting part 19 is a connecting flange arranged circumferentially along the opening of the upper shell 21. The lower shell 16 has a groove structure with an opening at the upper end. A second connecting part 17 is provided at the opening of the lower shell 16. The second connecting part 17 is a connecting flange. After the upper shell 21 is placed on the lower shell 16, the first connecting part 19 and the second connecting part 17 face each other and fit together. Then, multiple fastening bolts 20 are used to connect the first connecting part 19 and the second connecting part 17 at equal intervals. Preferably, when the upper housing 21 and the lower housing 16 are installed, a sealing element 18 is provided between the first connecting part 19 and the second connecting part 17. The sealing element 18 can be a sealing ring to ensure the sealing of the connection position between the upper housing 21 and the lower housing 16.

[0047] Preferably, the edge of the diaphragm capsule 11 is pressed between the first connecting part 19 and the second connecting part 17. Specifically, the edge of the diaphragm capsule 11 is pressed between the first connecting part 19 and the sealing member 18 or between the sealing member 18 and the second connecting part 17 to ensure the stability of the diaphragm capsule 11 in the shell and prevent the diaphragm capsule 11 from falling off.

[0048] More preferably, the liquid replenishment port 14 is located at the bottom of the lower housing 16.

[0049] Furthermore, this fluid replenishment device also includes an electrical control box 6, which is disposed within the expansion chamber 23. Preferably, the electrical control box 6 is disposed on the inner wall of the cover 4. The electrical control box 6 contains a detection assembly, specifically including an electrical control board 1, a pressure detection device 2, and a fluid shortage detection device. The pressure detection device 2 and the fluid shortage detection device are electrically connected to the electrical control board 1. The electrical control board 1 is specifically a common PCB. The electrical control board 1 is connected to an alarm 5, which can be, but is not limited to, a buzzer. Preferably, the alarm 5 is disposed on the outer wall of the upper housing 21 for easy detection of alarm signals by personnel. The pressure detection device 2 can specifically be a pressure sensor commonly used in the prior art. The detection probe of the pressure sensor extends through a portion of the electrical control box 6 into the expansion chamber 23 to detect the pressure within the expansion chamber 23. The pressure detection result of the pressure sensor is transmitted back to the electrical control board 1. The pressure within the expansion chamber 23 and the pressure within the fluid storage chamber 12 influence each other. When the pressure detection result exceeds the threshold stored in the storage module on the electrical control board 1, the alarm 5 sounds an alarm. The antifreeze detection device includes a pressure detection element 3 and a gravity ball 13. The pressure detection element 3 can be a tension sensor, which is electrically connected to the control board 1. The gravity ball 13 is connected to the tension sensor via a flexible pull wire 7. The gravity ball 13 hangs down naturally under its own weight. When the antifreeze in the reservoir 12 is sufficient, the gravity ball 13 contacts the diaphragm capsule 11 and is supported by the antifreeze surface. When the antifreeze in the reservoir 12 is insufficient, the gravity ball 13 is no longer supported by the antifreeze. At this time, the tension detection result of the tension sensor increases significantly. When the tension detection result approaches the tension threshold stored in the storage module, the alarm 5 sounds an alarm. It should be noted that the tension threshold can be the weight of the gravity ball 13.

[0050] Furthermore, this antifreeze replenishment device also includes a liquid injection assembly. The liquid injection port is located on the side wall of the lower housing 16. Preferably, the liquid injection port is located near the opening of the lower housing 16, and the liquid injection assembly is located at the liquid injection port. Specifically, the liquid injection assembly includes a liquid injection pipe 10 and a pressure gauge 8. The liquid injection pipe 10 is connected to the liquid injection port, and the pressure gauge 8 is located on the liquid injection pipe 10 to detect the pressure of the antifreeze flowing through the liquid injection pipe 10. Even further, the opening of the liquid injection pipe 10 is provided with a cap 9. When not replenishing liquid, the cap 9 is screwed on to prevent air from entering.

[0051] Furthermore, this liquid replenishment device also includes a level gauge 15, which is disposed in the lower housing 16. The detection head of the level gauge 15 extends through the side wall of the lower housing 16 into the liquid storage chamber 12 to detect the liquid level of the antifreeze in the liquid storage chamber 12. It should be noted that the level gauge 15 in this embodiment can be an existing ultrasonic level gauge 15, pressure level gauge 15, capacitive level gauge 15, etc., which can display the liquid level height and facilitate the staff to observe the remaining antifreeze.

[0052] Example 2: Example 2 of this application provides another fluid replenishment device. This fluid replenishment device includes a shell and a diaphragm capsule 11. The shell has an internal cavity, and the inner wall of the cavity is provided with a connecting part. In this embodiment, the connecting part is a groove arranged along the circumference of the shell, and the groove is provided with a matching clamp. The clamp is detachably connected to the groove. After the edge of the diaphragm capsule 11 is laid in the groove, the clamp is locked into the groove, thereby fixing the edge of the diaphragm capsule 11 in the groove. This allows the diaphragm capsule 11 to separate the cavity of the shell into two independent expansion chambers 23 and a liquid storage chamber 12.

[0053] Furthermore, the side wall of the outer shell is also provided with a replenishment port 14 and an injection port that communicate with the liquid storage chamber 12.

[0054] Furthermore, this replenishment device also includes an electrical control box 6, a detection component, a liquid injection component, and a level gauge 15. The specific configuration can be found in the relevant content of Embodiment 1 above; repeated details will not be elaborated further, as those skilled in the art will fully understand. The replenishment device provided in Embodiment 2 improves upon the outer casing by allowing access through an opening at the top of the casing to fix the diaphragm capsule 11 inside. Compared to the outer casing in Embodiment 1, this simplifies the connection structure of the diaphragm capsule 11, contributing to cost reduction.

[0055] When this antifreeze replenishment device is in use, as the temperature of the antifreeze rises, causing a change in the volume of the antifreeze, or when antifreeze is added to the reservoir 12, the volume of the antifreeze in the reservoir 12 increases, causing the diaphragm capsule 11 to rise into the expansion chamber 23. When the temperature of the antifreeze drops or the amount of antifreeze decreases, the diaphragm capsule 11 falls back to a certain height. During this process, the surface of the antifreeze is always in contact with the lower surface of the diaphragm capsule 11, so that the reservoir 12 is always in a closed state, preventing the antifreeze from being in an open environment where impurities can easily fall in or come into contact with air.

[0056] In summary, the antifreeze replenishment device provided in this application keeps the antifreeze in the closed storage chamber 12 at all times. This ensures the replenishment and expansion needs of the heating system while isolating the antifreeze from contact with air, preventing impurities from mixing into the antifreeze. This effectively reduces the damage to the system's equipment and pipelines caused by the antifreeze deteriorating, and also prevents the antifreeze from becoming more acidic, thus avoiding accelerated aging of rubber, O-rings, and gaskets, which could lead to leakage.

[0057] The embodiments of this application also provide a heating system including the liquid replenishment device described in any of the above embodiments, and thus have all the beneficial technical effects of the liquid replenishment device, which will not be repeated here.

[0058] The heating system provided in this embodiment can effectively prevent the antifreeze from being in an open environment or coming into contact with air, which would cause impurities or deterioration in the antifreeze and affect the stability of system operation, thus improving the stability of system operation.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 application.

Claims

1. A fluid replenishment device, characterized in that, include: The outer casing has an internal cavity. A diaphragm capsule is disposed within the outer shell, dividing the cavity into a liquid storage chamber and an expansion chamber, which are not interconnected; the liquid storage chamber is filled with antifreeze. The outer shell is provided with a liquid replenishment port and a liquid injection port, which are respectively connected to the liquid storage chamber.

2. The fluid replenishment device according to claim 1, characterized in that, The outer casing includes: The upper housing is provided with a first connecting portion; The lower housing is provided with a second connecting portion that can be adapted and connected to the first connecting portion; The edge of the diaphragm capsule is pressed between the first connecting portion and the second connecting portion; A sealing element is provided between the first connecting part and the second connecting part.

3. The fluid replenishment device according to claim 1, characterized in that, The inner wall of the outer shell is provided with a connecting part, which is arranged along the circumference of the outer shell, and the diaphragm capsule is connected to the connecting part.

4. The fluid replenishment device according to claim 1, characterized in that, The fluid replenishment device also includes: An electrical control box is disposed within the expansion cavity; An electronic control board, wherein the electronic control board is disposed in the electronic control box; A detection component, disposed in the expansion cavity, comprises: A pressure detection device, which is connected to the electronic control board; A liquid shortage detection device is connected to the electronic control board.

5. The fluid replenishment device according to claim 4, characterized in that, The fluid shortage detection device includes: A pressure detection element, which is connected to the electronic control board; A gravity ball, which is connected to the pressure detection element via a flexible drawstring.

6. The fluid replenishment device according to claim 4, characterized in that, The fluid replenishment device also includes an alarm, which is disposed in the housing and connected to the electronic control board.

7. The fluid replenishment device according to claim 1, characterized in that, The fluid replenishment device also includes: The injection tube is disposed at the injection port; A pressure gauge is installed in the injection tube.

8. The fluid replenishment device according to claim 1, characterized in that, The liquid replenishment device also includes a level gauge, which is disposed in the housing.

9. The fluid replenishment device according to any one of claims 1 to 8, characterized in that, The fluid replenishment device also includes a cover, the outer shell has an opening, and the cover is disposed at the opening.

10. A heating system, characterized in that, The fluid replenishment device includes any one of claims 1 to 9.

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