Heating drain valve

Abstract

The utility model relates to the technical field of valves, in particular to a heating drain valve. A heating drain valve comprises an actuator and a valve, the actuator is installed above the valve and used for receiving water adding, water draining, closing and temperature signals, controlling valve opening and closing and outputting valve opening, closing, fault and temperature signals, the valve is formed by connecting two ball valves in parallel and is divided into an upper ball valve and a lower ball valve, the upper ball valve is a fixed ball valve, and the lower ball valve is a floating ball valve. The two balls are connected between the upper ball valve and the lower ball valve through a rotating shaft to achieve synchronous operation of the two valves. The torque of the switch valve is reduced; the built-in heating module solves the problem of potential safety hazards of the airplane caused by freezing and blocking during drainage of the airplane.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and more particularly to a heating discharge valve. Background Art

[0002] The drinking water system is responsible for supplying water to the kitchen and toilet on the aircraft. The drinking water system is divided into drinking water storage tanks, drinking water distribution, water quantity indication and discharge. During ground service, the water tank is filled with water and discharged by controlling the opening and closing of valves.

[0003] Existing drain valves are usually installed on the water filling and discharge hoses and overflow ventilation hoses of the drinking water system, located in the water and wastewater tank, with a total of 4 pipe interfaces and 2 valve positions, which form two channels with the water filling and discharge hoses and the overflow ventilation hoses respectively; when the aircraft is parked for a long time or has been in cold areas (when the external temperature is below 0°C), the drain valves are prone to ice and blockage, and there is even a risk of freezing and cracking damage. In addition, during the flight, the health status of the drain valves cannot be observed in real time inside the fuselage, posing a safety hazard to the aircraft.

[0004] Therefore, providing a heating discharge valve that has a reasonable design, is easy to operate, and can monitor its own health status is an issue that needs to be urgently addressed by those skilled in the art. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a heating discharge valve which is safe in design, heats evenly, avoids valve clogging, can monitor its own health status, and facilitates observation of water temperature.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, which mainly include:

[0007] A heated discharge valve, comprising:

[0008] The machine body supplies power to the actuator, temperature sensor and heating belt, receives external feedback signals and issues command signals;

[0009] The actuator has an external interface connected to the body circuit, a built-in control board and a motor, the control board is connected to the motor circuit, the motor is rotatably connected to the valve stem, and controls the valve switch;

[0010] Valves, installed on the discharge pipe and water inlet pipe of the machine body;

[0011] A temperature sensor is embedded in the valve body, the temperature sensor is connected to the body circuit, and the temperature sensor detects the internal temperature data of the valve and uploads it to the body in real time;

[0012] An encoder, the encoder is connected to the control board circuit, and the control board calculates the valve opening value through the encoder;

[0013] Heating belt, the heating belt is wrapped around the outside of the ball valve and connected to the body circuit through an external interface;

[0014] The protection switch, the heating belt is connected to the protection switch circuit;

[0015] The actuator is installed above the valve, receives water addition, drainage, closing, and temperature signals, controls the valve switch, and outputs valve opening, closing, fault, and temperature signals. The valve adopts double ball valves in parallel, which are divided into an upper ball valve and a lower ball valve. The upper ball valve is a fixed ball valve, and the lower ball valve is a floating ball valve. The valve stem of the upper ball valve is rotatably connected to the motor, and a rotating shaft is used in the middle of the upper and lower ball valves to connect the two balls to realize synchronous operation of the two valves.

[0016] Preferably, a display panel is provided on the top of the actuator, and the fully open valve is displayed in yellow, and the fully closed valve is displayed in red.

[0017] Preferably, a handle is provided on the top of the actuator, and the valve can be opened or closed by manually rotating the handle.

[0018] Preferably, a radial sealing ring is provided at the connection between the valve stem and the upper ball valve, and a sealing ring is provided between the upper and lower ball valves of the rotating shaft to prevent medium mixing; an axial sealing gasket is provided at the connection between the two valves to prevent medium overflow in the event of radial sealing failure.

[0019] Preferably, after the heating belt is wrapped around the ball valve, the outside is wrapped with thermal insulation cotton.

[0020] Preferably, two mounting plates are provided on the top of the actuator.

[0021] Preferably, the external interface is divided into a valve body electrical connector and a heating electrical connector, the valve body electrical connector supplies power to the actuator and transmits information, and the heating electrical connector supplies power to the heating belt and transmits information.

[0022] It can be seen from the above technical solution that compared with the prior art, the utility model adopts a double ball valve parallel design, which respectively forms two channels (open and close at the same time) with the water filling discharge hose and the overflow ventilation hose, thereby reducing the switching valve torque. The machine body can send a self-test signal to the valve, check the actuator alert status, and then send status data to the machine body, and send the fault status to the system controller. A heating module is installed inside to ensure the working temperature inside the valve, prevent the drain valve from freezing and clogging, reduce the valve failure rate, and extend the valve service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 This is a schematic diagram of the valve structure of the utility model.

[0026] Figure 3 This is a schematic diagram of the sealing device structure of the utility model.

[0027] Figure 4 It is a schematic diagram of the process structure of the utility model.

[0028] Figure 5 This is a schematic diagram of the electrical control logic of the utility model.

[0029] Explanation of the accompanying drawings: 1-actuator, 2-upper ball valve, 3-lower ball valve, 4-interface, 5-mounting plate, 6-handle, 7-display panel, 8-control panel, 9-motor, 10-valve stem, 11-encoder, 12-valve, 13-temperature sensor, 14-protection switch, 15-heating belt, 16-insulation cotton, 17-rotating shaft, 18-sealing ring, 19-sealing gasket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] A heated discharge valve, such as Figure 1 As shown, it is divided into two main bodies, an actuator 1 and a valve 12. The valve 12 adopts double ball valves in parallel. The upper ball valve 2 is a fixed ball valve, and the lower ball valve 3 is a floating ball valve. The switching valve torque is minimized as much as possible. A rotating shaft is used in the middle to connect the two balls to realize the synchronous operation of the two valves. The outside is covered with thermal insulation cotton 16.

[0033] In order to further optimize the above scheme, the actuator 1 has a built-in control board 8, a motor 9, a valve stem 10 and an encoder 11. The control board 8 receives water addition, drainage, closing, and temperature signals, controls the switch of the valve 12, and outputs the opening, closing, fault, and temperature signals of the valve 12. The control board 8 controls the motor 9 to rotate and drive the valve stem 10 to rotate, controls the switch of the valve 12, and the encoder 11 detects the valve position opening value and feeds it back to the control board 8.

[0034] In order to further optimize the above scheme, Figure 5 As shown, the working process of the actuator 1 is as follows: the actuator 1 receives a water adding or draining signal, controls the motor 9 to rotate forward, and stops rotating when it detects that the encoder 11 reaches the open position preset value, and sends the valve 12 closing data to the machine body; the actuator 1 receives a closing signal, controls the motor 9 to rotate reversely, and stops rotating when it detects that the encoder 11 reaches the open position preset value, and sends the valve 12 opening data to the machine body.

[0035] In order to further optimize the above scheme, the actuator 1 detects that the motor 9 is blocked and the signal is wrong during operation, that is, a valve 12 fault signal is sent to the body. After the controller receives the self-test data sent by the body, it self-checks the valve position and signal, and reports whether there is a fault and the valve position data to the body.

[0036] Further, such as Figure 2 As shown, the valve 12 has a built-in temperature sensor 13 , a heating belt 15 is wrapped around the outside of the valve 12 , the outside of the heating belt 15 is wrapped by heat-insulating cotton 16 , and the heating belt 15 is connected to the temperature protection switch 14 circuit.

[0037] In order to further optimize the above solution, the temperature sensor 13 is a thermistor connected to the aerodynamic body system. After the aerodynamic body system determines the temperature, it controls the opening and closing of the heating power supply.

[0038] In order to further optimize the above scheme, Figure 4 As shown, when the machine body determines that the temperature is lower than 5°C according to the signal of the temperature sensor 13, the heating power supply is controlled to be powered on and the heating belt 15 is powered on for heating; when the machine body determines that the temperature is higher than 10°C according to the signal of the temperature sensor 13, the heating power supply is controlled to be powered off and the heating belt 15 is powered off.

[0039] In order to further optimize the above solution, when the temperature protection switch 14 detects that the temperature of the heating belt 15 is higher than 75° C., the heating circuit is disconnected and heating is stopped.

[0040] More specifically, Figure 3 As shown, a radial sealing ring 18 is provided at the connection between the valve stem 10 and the upper ball valve 2, and a sealing ring is provided between the rotating shaft 17 and the upper and lower ball valves to prevent medium mixing; an axial sealing gasket 19 is provided at the connection between the two valves to prevent medium overflow in the event of radial sealing failure.

[0041] In order to further optimize the above solution, the heating belt 15 uses a 115V, 50W heating wire.

[0042] In order to further optimize the above solution, two mounting plates 5 are provided on the top of the actuator, and the actuator 1 can be fixed inside the machine body by bolts.

[0043] In order to further optimize the above solution, a handle 6 is provided on the top of the actuator 1, and the valve can be opened or closed by manually rotating the handle 6.

[0044] In order to further optimize the above solution, a display panel 7 is provided on the top of the actuator 1, and the fully open valve 12 is displayed in yellow, and the fully closed valve 12 is displayed in red.

[0045] In order to further optimize the above solution, the external interface 4 is divided into a valve body electrical connector and a heating electrical connector. The valve body electrical connector supplies power and transmits information to the actuator 1 , and the heating electrical connector supplies power and transmits information to the heating belt 15 .

[0046] In order to further optimize the above solution, the metal material of the valve 12 is titanium alloy TC4 (Ti-6Al-4V), with a density of 4.43 g / cm 3 , ensuring that the valve 12 is lightweight.

[0047] In order to further optimize the above solution, the outer shell of the valve 12 is coated with insulating paint to ensure that the resistance value is ≥ 100MΩ.

[0048] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heated discharge valve, comprising: The machine body supplies power to the actuator (1), the temperature sensor (13) and the heating belt (15), receives external feedback signals and issues command signals; It is characterized in that Also included are: An actuator (1), an external interface (4) connected to a body circuit, a built-in control board (8) and a motor (9), wherein the control board (8) is connected to the motor (9) circuit, and the motor (9) is rotationally connected to a valve stem (10) to control the opening and closing of a valve (12); A valve (12) is installed on the discharge pipe and the water inlet pipe of the machine body; A temperature sensor (13) is embedded in the valve body of the valve (12), the temperature sensor (13) is connected to the circuit of the body, and the temperature sensor (13) detects the internal temperature data of the valve (12) and uploads it to the body in real time; An encoder (11), wherein the encoder (11) is connected to the control board (8) in an electrical circuit, and the control board (8) calculates the opening value of the valve (12) through the encoder (11); A heating belt (15), the heating belt (15) is wound around the outside of the upper ball valve (2) and the lower ball valve (3), and is connected to the circuit of the machine body through an external interface (4); The protection switch (14) and the heating belt (15) are connected to the protection switch circuit; The actuator (1) is installed above the valve (12), receives water filling, drainage, closing, and temperature signals, controls the valve (12) to switch, and outputs valve (12) opening, closing, fault, and temperature signals. The valve (12) adopts a double ball valve in parallel, which is divided into an upper ball valve (2) and a lower ball valve (3). The upper ball valve (2) is a fixed ball valve, and the lower ball valve (3) is a floating ball valve. The valve stem (10) of the upper ball valve (2) is rotatably connected to the motor (9), and a rotating shaft (17) is used between the upper and lower ball valves to connect the two balls to realize synchronous operation of the two valves.

2. A heated discharge valve according to claim 1, characterized in that: The interface (4) is divided into a valve body electrical connector and a heating electrical connector. The valve body electrical connector supplies power to the actuator (1) and transmits information, and the heating electrical connector supplies power to the heating belt (15) and transmits information.

3. A heated discharge valve according to claim 1, characterized in that: The top of the actuator (1) is provided with a handle (6).

4. A heated discharge valve according to claim 1, characterized in that: After the heating belt (15) is wound around the ball valve, the outside is wrapped with heat-insulating cotton (16).

5. A heated discharge valve according to claim 1, characterized in that: A display panel (7) is provided on the top of the actuator (1), and when the valve (12) is fully open, it is displayed in yellow, and when the valve (12) is fully closed, it is displayed in red.

6. A heated discharge valve according to claim 1, characterized in that: Two mounting plates (5) are provided on the top of the actuator (1).

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