Automatic exhaust control device and pipeline system

Abstract

The utility model provides an automatic exhaust control device and a pipeline system, and relates to the technical field of water supply and drainage. The automatic exhaust control device comprises an exhaust pipeline used for communicating an exhaust branch pipe of a water supply pipeline with the outside; the valve is arranged on the exhaust pipeline to control the on-off of the exhaust pipeline; the cavity is communicated with the exhaust pipeline, a floating part is arranged in the cavity, a gap is formed between the floating part and the side wall of the cavity, and the floating part ascends or descends according to the height of liquid in the exhaust pipeline; the circuit comprises a power source and a switch assembly, the power source is electrically connected with the valve and used for powering on or powering off the valve, and the valve is closed or opened according to powering on or powering off; the switch assembly is arranged above the floating piece in the vertical direction, and the switch assembly is switched on or switched off through ascending or descending of the floating piece. According to the exhaust valve, the exhaust process is electrically controlled, and the defects that an existing mechanical automatic exhaust valve is not high in sensitivity, prone to clamping stagnation and unreliable in function are overcome.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water supply and drainage, and in particular to an automatic exhaust control device and a pipeline system. Background Art

[0002] In building heating (water heating), fire water supply, industrial heating and cooling water supply pipeline systems, air is easily mixed into the system due to factors such as water pumping and temperature difference changes. If these air cannot be effectively removed, they will accumulate into bubbles, affect the continuity of water flow, reduce the medium transmission efficiency, and thus affect the heating or cooling effect.

[0003] The traditional mechanical automatic exhaust valve relies on the buoyancy principle of water to work. Its structure is relatively simple and usually includes components such as a float, a connecting rod, and a valve seat. When the water level rises, the float rises and opens the exhaust branch through the connecting rod mechanism; conversely, when the water level drops, the float drops and closes the exhaust branch. However, the response speed of the mechanical exhaust valve is limited by the buoyancy of the float and the efficiency of the connecting rod mechanism. It is difficult to respond quickly to tiny bubbles or slowly accumulated gases, resulting in untimely exhaust. In addition, impurities and rust in the water may block the exhaust branch or affect the free movement of the float, which is prone to jamming under long-term operation, affecting the exhaust function. In addition, in the case of extreme temperature changes and large water pressure fluctuations, mechanical components are easily damaged or fail, reducing the stability and reliability of the exhaust valve.

[0004] Therefore, an automatic exhaust control device is needed to at least solve the above problems. Utility Model Content

[0005] A technical problem to be solved by the present disclosure is: how to solve the problem that the existing exhaust structure has low sensitivity, is easy to get stuck and has poor reliability, resulting in poor exhaust effect.

[0006] In order to solve the above technical problems, the embodiment of the present disclosure provides an automatic exhaust control device, including: an exhaust pipeline, the exhaust pipeline is used to connect the exhaust branch of the water supply pipeline with the outside world; a valve, the valve is arranged on the exhaust pipeline to control the on and off of the exhaust pipeline; a cavity, the cavity is connected to the exhaust pipeline, a floating part is provided in the cavity, there is a gap between the floating part and the side wall of the cavity, the floating part rises or falls according to the height of the liquid in the exhaust pipeline; and a circuit, the circuit includes a power supply and a switch assembly, the power supply is electrically connected to the valve, and is used to power on or off the valve, and the valve is closed or opened according to the power on or off; the switch assembly is arranged above the floating part in the vertical direction, and the switch assembly is closed or opened by the rise or fall of the floating part.

[0007] In some embodiments, the automatic exhaust control device also includes: a cavity cover, which is detachably connected to the cavity body; a first pipeline, a first through hole is penetrated through the cavity cover, and a second through hole is provided on the side wall of the exhaust pipeline near the valve, and both ends of the first pipeline are respectively connected to the first through hole and the second through hole.

[0008] In some embodiments, the switch assembly includes a first contact and a second contact, the first contact is vertically arranged above the second contact, and the second contact is connected to the inner wall of the cavity through an elastic member.

[0009] In some embodiments, the elastic member is arranged in a horizontal direction, and the radial elastic force of the elastic member is not less than the gravity of the second contact.

[0010] In some embodiments, the floating member includes an inclined surface having an angle with the vertical direction, and the inclined surface is arranged toward the switch assembly; the elastic member is arranged on a side of the inclined surface which is lower in the vertical direction.

[0011] In some embodiments, the first contact and the second contact are arranged non-collinearly, and the second contact is close to a side of the inclined surface that is higher in the vertical direction.

[0012] In some embodiments, the cavity has a limiting structure located below the floating member in the vertical direction, and the limiting structure is used to limit the movement range of the floating member.

[0013] In some embodiments, the automatic exhaust control device further includes: an exhaust plug, which is arranged at the port of the exhaust pipeline facing away from the valve; the exhaust plug is provided with a second exhaust hole, and the diameter of the second exhaust hole is smaller than the diameter of the exhaust pipeline.

[0014] In some embodiments, the automatic exhaust control device further includes: a second pipeline, both ends of which are respectively connected to the exhaust pipeline and the cavity, and the liquid in the exhaust pipeline can enter the cavity through the second pipeline.

[0015] The disclosed embodiment also provides a pipeline system, comprising the automatic exhaust control device mentioned above.

[0016] Through the above technical scheme, the automatic exhaust control device provided by the present invention is connected to the exhaust branch of the water supply pipe through the exhaust pipe, ensuring that the gas in the water supply pipe can be discharged smoothly; the valve opens or closes the exhaust pipe according to the command of the circuit; it is connected to the exhaust pipe through the cavity, and the floating part arranged in the cavity can move up and down following the change of the liquid level in the exhaust pipe; the switch component is arranged just above the floating part, and the on / off state of the circuit is automatically switched as the floating part moves vertically, so as to dynamically respond to the change of the liquid level in the exhaust pipe, adjust the exhaust state in time, avoid reducing the liquid delivery efficiency due to slow response, maintain an appropriate gap between the floating part and the cavity wall, reduce the friction and obstruction between the moving parts, thereby reducing the risk of sticking, and solve the defects of the existing mechanical automatic exhaust valve such as low sensitivity, easy sticking and unreliable function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the automatic exhaust control device disclosed in the embodiment of the present disclosure.

[0019] Description of reference numerals:

[0020] 1. Exhaust pipeline; 2. Valve; 3. Cavity; 301. Limiting structure; 4. Floating part; 5. Circuit; 501. Power supply; 502. First contact; 503. Second contact; 6. Cavity cover; 7. First pipeline; 8. Elastic part; 9. Exhaust plug; 901. Second exhaust hole; 10. Second pipeline; 11. Water supply pipeline; 1101. Exhaust branch pipe. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0022] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0023] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0025] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0026] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] Example 1

[0029] In order to solve the problems existing in the prior art, the present disclosure provides an automatic exhaust control device, such as Figure 1 As shown, it includes: an exhaust pipeline 1, which is used to connect the exhaust branch pipe 1101 of the water supply pipeline 11 with the outside world; a valve 2, which is arranged on the exhaust pipeline 1 to control the on-off of the exhaust pipeline 1; a cavity 3, which is connected to the exhaust pipeline 1, and a floating member 4 is provided in the cavity 3, and there is a gap between the floating member 4 and the side wall of the cavity 3, and the floating member 4 rises or falls according to the height of the liquid in the exhaust pipeline 1; and a circuit 5, which includes a power supply 501 and a switch component, and the power supply 501 is electrically connected to the valve 2, and is used to power on or off the valve 2, and the valve 2 is closed or opened according to the power on or off; the switch component is arranged above the floating member 4 in the vertical direction, and the switch component is closed or opened by the floating member 4 rising or falling.

[0030] The exhaust pipe 1 can be made of corrosion-resistant materials, such as stainless steel or engineering plastics, to ensure that it can be used for a long time in a humid environment or in an environment with chemicals without damage. The exhaust pipe 1 is arranged in a vertical direction, and one end is connected to the exhaust branch pipe 1101 of the water supply pipe 11. A liquid medium flows inside the water supply pipe 11, and the gas mixed in the liquid medium can be discharged through the exhaust pipe 1; the other end of the exhaust pipe 1 leads to a safe discharge area, such as outdoors or a professional treatment facility, to ensure that the gas accumulated in the water supply pipe 11 is effectively released. The valve 2 can use a solenoid valve or a butterfly valve, which has good sealing performance and fast response capabilities. The valve 2 has a built-in electric actuator that can respond to the instructions of the circuit 5, and can quickly perform opening and closing actions at the moment when the circuit 5 is turned on or off, so as to achieve precise control of the exhaust process. The cavity 3 is connected to the exhaust pipe 1, so the liquid level in the cavity 3 is the same as that in the exhaust pipe 1. The floating member 4 can be a block structure made of a lightweight, corrosion-resistant material (such as PVDF or a stainless steel float), and its density is less than that of water, so that the floating member 4 can fall as the liquid level in the cavity 3 rises. A small gap is left between the floating member 4 and the wall of the cavity 3 to ensure that it can move up and down freely. The switch component can be a liquid level switch, such as a float switch. The float switch directly triggers the micro switch through the up and down movement of the floating member 4 to achieve the on-off control of the circuit 5. The switch component is installed directly above the floating member 4 to ensure that the liquid level changes are sensitively and accurately reflected.

[0031] By arranging a floating member 4 in the cavity 3 to directly sense the liquid level change caused by gas accumulation, and arranging the switch assembly above the floating member 4, the cavity 3 is connected to the exhaust pipe 1, and the floating member 4 moves up and down following the liquid level change, thereby touching or moving away from the switch assembly, realizing the on-off control of the circuit 5, and then controlling the action of the valve 2 to ensure timely emptying of excess gas, thereby avoiding reducing the liquid delivery efficiency due to slow reaction, and maintaining an appropriate gap between the floating member 4 and the wall of the cavity 3, reducing the friction and obstruction between the moving parts, thereby reducing the risk of jamming, thereby improving the smoothness of the control action, and significantly extending the service life of the entire device, ensuring long-term stable operation.

[0032] In some embodiments, the automatic exhaust control device also includes: a cavity cover 6, which is detachably connected to the cavity 3; a first pipeline 7, a first through hole is penetrated through the cavity cover 6, and a second through hole is provided on the side wall of the exhaust pipeline 1 near the valve 2, and the two ends of the first pipeline 7 are respectively connected to the first through hole and the second through hole.

[0033] The detachable chamber cover 6 facilitates regular inspection and cleaning of the chamber 3. The chamber cover 6 is provided with a first through hole, and the two ends of the first pipeline 7 are respectively connected to the first through hole on the chamber cover 6 and the second through hole on the side wall of the exhaust pipeline 1 near the valve 2, so that the gas in the chamber 3 can communicate with the gas in the exhaust pipeline 1, thereby effectively adjusting the pressure in the chamber 3 and maintaining a stable state. The first pipeline 7 can be a flexible pipeline.

[0034] When the pipeline system is operating normally and the gas content is very low, a relatively high liquid pressure is maintained inside the water supply pipeline 11. At this time, the floating part 4 floats up under the strong liquid pressure and contacts the switch assembly, and the circuit 5 is immediately closed, causing the valve 2 to close, the system is sealed, and the gas leakage is effectively prevented to maintain the gas-tight state. When a certain amount of air accumulates in the water supply pipeline 11, these gases gradually gather at the high exhaust port of the exhaust branch pipe 1101, and penetrate to the top of the exhaust pipeline 1. Through the first pipeline 7, the air pressure in the cavity 3 and the exhaust pipeline 1 is balanced. As the gas accumulation causes the liquid level to drop, the floating part 4 also drops, detaches from the switch assembly that it originally contacted, the circuit 5 is disconnected, the valve 2 is immediately opened, and the system begins to automatically discharge excess gas to the outside through the exhaust pipeline 1. During the discharge process, the liquid pressure continuously provided by the pipeline system ensures the continuity of the system function. Once the gas discharge reaches the ideal state, that is, the liquid level in the exhaust pipe 1 rises due to system replenishment, the floating member 4 floats up again due to the buoyancy and contacts the switch assembly, the circuit 5 is closed again, the valve 2 is closed, the system is sealed again, and the exhaust process is terminated to ensure that the system is maintained in the best operating state.

[0035] The automatic exhaust control device provided in the embodiment of the present disclosure realizes precise management of exhaust in the pipeline system through highly sensitive liquid level monitoring and automatic valve 2 control, effectively solves the pressure imbalance problem caused by gas accumulation, and improves the safety and efficiency of system operation.

[0036] In some embodiments, the automatic exhaust control device further includes: a second pipeline 10 , the two ends of which are respectively connected to the exhaust pipeline 1 and the cavity 3 , and the liquid in the exhaust pipeline 1 can enter the cavity 3 through the second pipeline 10 .

[0037] Through the second pipeline 10, the liquid in the exhaust pipeline 1 can be guided into the cavity 3, so that the liquid level in the cavity 3 is the same as that in the exhaust pipeline 1. The second pipeline 10 can be a three-way pipeline, which is respectively connected to the exhaust pipeline 1, the cavity 3 and the exhaust branch pipe 1101 of the water supply pipeline 11, and can be connected by reliable means such as threading or welding.

[0038] In some embodiments, Figure 1 As shown, the switch assembly includes a first contact 502 and a second contact 503 , the first contact 502 is vertically arranged above the second contact 503 , and the second contact 503 is connected to the inner wall of the cavity 3 via an elastic member 8 .

[0039] The first contact 502 and the second contact 503 can be spherical copper conductive contacts, which are respectively well connected to the power supply 501 through wires. The first contact 502 is located above the second contact 503 and is arranged in the vertical direction. Such a layout enables the contact or separation of the two contacts to be more accurately controlled when the floating member 4 rises or falls with the liquid level, thereby realizing the switching of the valve system on / off.

[0040] The second contact 503 is connected to the inner wall of the cavity 3 through the elastic member 8. The elastic member 8 can be a spring made of rubber material with insulation performance. The elastic member 8 not only provides a supporting force for the second contact 503 to be suspended below the first contact 502, but also provides a restoring force for the second contact 503, so that even when the floating member 4 is slightly disturbed by external force or liquid fluctuations, it can quickly return to the correct working state. It avoids the adhesion or misalignment of the contacts, ensures the reliability of disconnection, thereby reducing malfunctions and improving the stability of control.

[0041] In some embodiments, the elastic member 8 is arranged in the horizontal direction, and the radial elastic force of the elastic member 8 is not less than the gravity of the second contact 503 .

[0042] The elastic member 8 (such as a spring) is arranged in the horizontal direction to provide a supporting force for the second contact 503 in the lateral direction of the cavity 3, so that the elastic member 8 forms a stable lateral connection between the second contact 503 and the wall of the cavity 3. The radial elastic force of the elastic member 8 (i.e., the elastic force along the side wall of the cavity 3) is not less than the gravity of the second contact 503 itself. This not only ensures that the elastic member 8 can maintain a horizontal state when there is no external interference, thereby continuously providing the second contact 503 with the necessary supporting force, but also enables the second contact 503 to stably suspend at a predetermined position below the first contact 502 without external pressure.

[0043] It can be ensured that when the floating member 4 floats, it can easily lift the second contact 503 to contact the first contact 502, so that the valve 2 is energized, the valve 2 is closed, and the system is sealed. When the floating member 4 descends, the second contact 503 falls with its own weight and stabilizes at a preset position, leaving the first contact 502, so that the valve 2 is de-energized, the valve 2 is opened, and the system is exhausted. Through the elastic member 8, the second contact 503 can quickly and accurately contact or separate with the first contact 502 with the help of the instant response ability of the elastic member 8, thereby efficiently closing or disconnecting the circuit 5, which significantly enhances the reliability and response speed of the switch assembly.

[0044] In some embodiments, the cavity 3 and the cavity cover 6 are made of ceramic material, and the power supply 501 is disposed outside the cavity 3 .

[0045] The cavity 3 and the cavity cover 6 are both made of ceramic materials. The good insulation performance of the ceramic material ensures the stability and accuracy of the electrical signal transmission, so that the wire can pass through the cavity cover 6 to connect with the switch assembly and the power supply 501 respectively, and the outside of the wire has an insulating layer. The smooth surface of the cavity 3 also helps to reduce the resistance of the liquid flow and the adhesion of sediments, which is convenient for cleaning and maintenance. The power supply 501 is used to provide electrical energy for the valve 2. In order to ensure electrical safety and facilitate maintenance, the power supply 501 unit is designed to be installed outside the cavity 3 rather than directly placed in the cavity 3, so as to avoid liquid leakage from damaging the power supply 501. The power supply 501 can be a safe voltage below 24V, and the selected automatic valve 2 working voltage must match it.

[0046] In some embodiments, the floating member 4 includes an inclined surface having an angle with the vertical direction, and the inclined surface is arranged toward the switch assembly; the elastic member 8 is arranged on the side of the inclined surface which is lower in the vertical direction.

[0047] The floating member 4 has an inclined surface that forms an angle with the vertical direction, so that its longitudinal cross-section is trapezoidal. The inclined surface of the floating member 4 faces the switch assembly. When the liquid level rises and the floating member 4 moves up accordingly, the inclined surface can contact or separate from the switch assembly earlier. The elastic member 8 is arranged on the lower side of the inclined surface in the vertical direction to prevent its surface from directly contacting the elastic member 8 during the process of the floating member 4 moving up due to buoyancy. If the surface of the floating member 4 is in direct contact with the elastic member 8, the elastic member 8 may be compressed and deformed or intervene in the switch action in advance, affecting the normal liquid level sensing and switch control.

[0048] In some embodiments, the first contact 502 and the second contact 503 are arranged non-collinearly, and the second contact 503 is close to a side of the inclined surface that is higher in the vertical direction.

[0049] The second contact 503 is arranged close to the high side of the inclined surface, so that when the floating member 4 moves upward, the horizontal component force generated by its inclined surface and the restoring force provided by the elastic member 8 work together to more efficiently push the second contact 503 to complete the closing action. This layout helps to avoid the problem of false contact or separation of the contacts due to the slight movement of the floating member 4 left and right or up and down, thereby improving the stability and reliability of the switch action. Even under extreme working conditions, such as rapid liquid level fluctuations, it can ensure that the contacts respond correctly and promptly, reducing the possibility of false operation.

[0050] In some embodiments, the cavity 3 has a limiting structure 301 below the floating member 4 along the vertical direction, and the limiting structure 301 is used to limit the movement range of the floating member 4.

[0051] A limiting structure 301 is provided inside the cavity 3 along the vertical direction below the floating member 4. This structure can be a fixed physical barrier, such as an annular baffle or a bottom protrusion, or a flexible mechanical limiter, such as a rubber ring or an elastic pressure block. They are precisely installed inside the cavity 3 to match the movement trajectory of the floating member 4, so as to limit it from exceeding the preset limit position without affecting the normal up and down movement of the floating member 4. The limiting structure 301 specifies the maximum sinking depth of the floating member 4 by contacting or approaching the bottom of the floating member 4, thereby ensuring that the floating member 4 will not be damaged by touching the bottom due to excessive downward movement when the liquid level changes. At the same time, the position of the limiting structure 301 must also ensure that the floating member 4 can descend to be completely separated from the second contact 503 to ensure that the circuit 5 is completely disconnected.

[0052] In some embodiments, the total height of the floating member 4 needs to ensure that it can move freely in the cavity 3, and maintain a sufficient distance from the limiting structure 301 and other possible electrical components, for example, greater than 5 mm, to achieve necessary electrical insulation. This avoids short circuits that may occur due to contact between the floating member 4 and other components in a humid or specific chemical environment, thereby improving the electrical safety performance of the system.

[0053] The cross-sectional area of ​​the floating member 4 is much larger than the cross-sectional area of ​​the exhaust pipe 1, so as to ensure that the buoyancy is greater than the sum of the elastic force of the elastic member 8 and the gravity of the floating member 4. A larger cross-sectional area means that the floating member 4 can obtain a greater buoyancy in the liquid, ensuring that in any case, even in the face of changes in liquid density or external conditions, the floating member 4 can still overcome the restoring force of the elastic member 8 with sufficient buoyancy, stably maintain the correct position or move as needed, and ensure the accuracy of control.

[0054] In some embodiments, the automatic exhaust control device also includes: an exhaust plug 9, which is arranged at the port of the exhaust pipe 1 facing away from the valve 2; the exhaust plug 9 is provided with a second exhaust hole 901, and the diameter of the second exhaust hole 901 is smaller than the diameter of the exhaust pipe 1.

[0055] An exhaust plug 9 is installed at the end of the exhaust pipe 1 away from the valve 2. The exhaust plug 9 can be threadedly connected to the exhaust pipe 1. A second exhaust hole 901 is set on the exhaust plug 9, and its diameter is smaller than the diameter of the exhaust pipe 1, about 3-5mm. Since the aperture of the second exhaust hole 901 is small, it can effectively adjust the discharge rate to ensure that the gas release is smooth during the opening process of the valve 2, avoiding the drastic pressure fluctuations and accompanying noise problems caused by rapid exhaust. It can also prevent the liquid in the pipeline from being driven by the pressure thrust and accidentally splashing through the exhaust pipe 1 in the case of a sudden pressure drop, thereby maintaining the safe operating environment of the system and reducing the potential risk of liquid leakage.

[0056] The working principle of the automatic exhaust control device provided in the embodiment of the present disclosure is:

[0057] When the pipeline system operates normally and the gas content is very small, the water supply pipeline 11 maintains a relatively high liquid pressure. At this time, the floating member 4 floats up under the strong liquid pressure, contacts the second contact 503, and pushes the second contact 503 to contact the first contact 502. The circuit 5 is then closed, and the power supply 501 provides power to the valve 2, causing the valve 2 to close, the system is sealed, and the gas is kept in a closed state. When a certain amount of air accumulates in the water supply pipeline 11, these gases gradually gather at the high point of the system and are discharged to the top of the exhaust pipeline 1 and the cavity 3 through the exhaust branch pipe 1101. Through the first pipeline 7, the gas pressure in the cavity 3 and the exhaust pipeline 1 is balanced. As the liquid level drops due to the accumulation of gas, the floating member 4 also drops until it is separated from the second contact 503. At this time, the second contact 503 is separated from the first contact 502 under the action of gravity, the circuit 5 is disconnected, the valve 2 is immediately opened, and the system begins to automatically discharge excess gas to the outside through the exhaust pipeline 1. During the discharge process, the continuous liquid pressure provided by the pipeline system ensures the continuity of the system function. Therefore, once the gas discharge reaches the ideal state, that is, the liquid level in the exhaust pipe 1 rises due to system replenishment, the floating member 4 floats up again due to the buoyancy and causes the second contact 503 to contact the first contact 502, the circuit 5 is closed again, the valve 2 is closed, the system is sealed again, and the exhaust process is terminated, ensuring that the system is maintained in the best operating state.

[0058] The automatic exhaust control device provided in the embodiment of the present disclosure can automatically adjust according to the real-time working conditions to achieve seamless switching from exhaust to sealing state. Once the gas is discharged to the ideal state, the pipeline system quickly adjusts itself, restores the seal, maintains the optimal operating conditions, and has good adaptive ability and efficient working cycle. By accurately controlling the opening and closing of valve 2, it has the advantages of high sensitivity and reliable function, avoids reducing the liquid delivery efficiency due to slow response, and improves the stability of pipeline system operation.

[0059] Example 2

[0060] An embodiment of the present disclosure provides a pipeline system, including the automatic exhaust control device provided in Example 1.

[0061] The pipeline system may include a water supply pipeline 11, which is a main pipeline for liquid circulation and has an exhaust branch 1101. It also includes an automatic exhaust control device, which is embedded in the highest point of the pipeline system or a part where gas is easily accumulated, and is responsible for automatically monitoring and regulating gas emissions in the system. By integrating the automatic exhaust control device of Example 1, the pipeline system realizes automatic control of gas emissions, and can effectively manage the gas pressure inside the pipeline without manual intervention, thereby improving the reliability of system functions, reducing the maintenance rate, and greatly improving the user experience.

[0062] In some embodiments, the piping system is reliably grounded.

[0063] The pipeline system can be grounded by laying a dedicated grounding wire, one end of which is connected to the pipeline system components and the other end is connected to the grounding electrode pre-buried underground or the grounding system of the building. Reliable grounding significantly improves the safety of the pipeline system, effectively prevents the accumulation of static electricity and the occurrence of leakage accidents, and good grounding can also reduce electromagnetic interference and protect the normal operation of the automatic exhaust control device.

[0064] In some embodiments, when the valve 2 is closed, the sealing pressure of the pipeline system seal is greater than the water supply pressure.

[0065] The valve 2 itself can be made of high-performance sealing materials and designs, such as reinforced rubber sealing rings, metal sealing gaskets or self-adjusting sealing structures, to ensure that a tight and reliable sealing interface is formed in the closed state. Since the water supply pressure is very high during the operation of the pipeline system, by ensuring that the sealing pressure of the pipeline system is greater than the water supply pressure when the valve 2 is closed, it can be avoided that the huge water supply pressure rushes open the valve 2 in the sealed state, causing liquid to spray out, thereby significantly improving the sealing performance and safety of the system.

[0066] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0067] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. An automatic exhaust control device, characterized in that: include: An exhaust pipeline (1), the exhaust pipeline (1) being used to connect the exhaust branch pipe (1101) of the water supply pipeline (11) with the outside world; A valve (2), the valve (2) being arranged on the exhaust pipeline (1) to control the on-off of the exhaust pipeline (1); a cavity (3), the cavity (3) being in communication with the exhaust pipe (1), a floating member (4) being arranged in the cavity (3), a gap being provided between the floating member (4) and a side wall of the cavity (3), the floating member (4) rising or falling according to the height of the liquid in the exhaust pipe (1); and, A circuit (5), the circuit (5) comprising a power supply (501) and a switch assembly, the power supply (501) being electrically connected to the valve (2) and used to power on or off the valve (2), the valve (2) being closed or opened according to power on or off; the switch assembly being arranged above the floating member (4) in a vertical direction, the switch assembly being closed or opened by the floating member (4) rising or falling.

2. The automatic exhaust control device according to claim 1, characterized in that: Also includes: A cavity cover (6), wherein the cavity cover (6) is detachably connected to the cavity body (3); A first pipeline (7), a first through hole is penetrated through the chamber cover (6), a second through hole is provided on the side wall of the exhaust pipeline (1) near the valve (2), and two ends of the first pipeline (7) are respectively connected to the first through hole and the second through hole.

3. The automatic exhaust control device according to claim 1, characterized in that: The switch assembly comprises a first contact (502) and a second contact (503), wherein the first contact (502) is arranged above the second contact (503) along the vertical direction, and the second contact (503) is connected to the inner wall of the cavity (3) via an elastic member (8).

4. The automatic exhaust control device according to claim 3, characterized in that: The elastic member (8) is arranged in the horizontal direction, and the radial elastic force of the elastic member (8) is not less than the gravity of the second contact (503).

5. The automatic exhaust control device according to claim 4, characterized in that: The floating member (4) comprises an inclined surface having an angle with the vertical direction, and the inclined surface is arranged toward the switch assembly; The elastic member (8) is arranged on a side of the inclined surface which is lower in the vertical direction.

6. The automatic exhaust control device according to claim 5, characterized in that: The first contact (502) and the second contact (503) are arranged non-collinearly, and the second contact (503) is close to a side of the inclined surface that is higher in the vertical direction.

7. The automatic exhaust control device according to claim 1, characterized in that: The cavity (3) is provided with a limiting structure (301) located below the floating member (4) along the vertical direction, and the limiting structure (301) is used to limit the movement range of the floating member (4).

8. The automatic exhaust control device according to claim 1, characterized in that: Also includes: An exhaust plug (9), the exhaust plug (9) being arranged at a port of the exhaust pipeline (1) facing away from the valve (2); The exhaust plug (9) is provided with a second exhaust hole (901), and the diameter of the second exhaust hole (901) is smaller than the diameter of the exhaust pipeline (1).

9. The automatic exhaust control device according to claim 1, characterized in that: Also includes: A second pipeline (10), wherein two ends of the second pipeline (10) are respectively connected to the exhaust pipeline (1) and the cavity (3), and liquid in the exhaust pipeline (1) can enter the cavity (3) through the second pipeline (10).

10. A pipeline system, characterized in that: The invention comprises an automatic exhaust control device according to any one of claims 1 to 9.

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