Heating type drainage and exhaust electromagnetic valve
By designing heating heating and temperature measurement components in the drainage and exhaust solenoid valve, the problem of freezing the valve mouth of the valve mouth at the low temperature is solved, and the normal work and temperature control of the solenoid valve in the low temperature environment.
Patent Information
- Application Number
- CN202421090367.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-20
AI Technical Summary
In low-temperature application scenarios, fuel cell engines are prone to freezing due to liquid droplets, which affects the normal operation of the solenoid valve.
A heating drainage and exhaust solenoid valve is designed, which contains electromagnetic control valves and heating temperature measurement components. The electromagnetic control valve realizes the power -on valve and the power -off control valve through the coil, the core and the leveraged structure; the heating temperature measurement component is set on the surface of the valve body to achieve rapid heating and temperature detection.
By rapidly heating the temperature and melting freezing point, the risk of freezing at the valve mouth is avoided, and temperature detection and control are achieved at the same time to ensure that the solenoid valve works normally in a low temperature environment.
Smart Images
Figure CN222416331U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a heating type drainage and exhaust electromagnetic valve. Background Art
[0002] Solenoid valves are electromagnetically controlled industrial devices used to control the on / off flow of fluids in pipelines.
[0003] The drain and exhaust solenoid valve is a part of the hydrogen path of the fuel cell. It needs to be used in conjunction with the gas-water separator to drain the water generated during the reaction of the fuel cell and diffused into the hydrogen path through the drain and exhaust valve to ensure the normal circulation of the hydrogen path;
[0004] Fuel cell engines usually have low-temperature application scenarios. Although they will be shut down for purging, there is still a risk of a small amount of liquid droplets freezing at the valve mouth. Therefore, it is necessary to provide a heated drain and exhaust solenoid valve to melt the ice point in advance to avoid the risk of ice forming at the valve mouth. Utility Model Content
[0005] In order to solve the above problems, the purpose of the utility model is to provide a heating type drainage and exhaust solenoid valve to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model proposes a heating type drainage and exhaust solenoid valve, comprising a valve body, a solenoid control valve is fixedly arranged on one side of the top of the valve body, an air inlet pipe is opened on one side of the top of the valve body, an air outlet pipe is fixedly connected to one side of the valve body, and a heating and temperature measuring component is arranged on the other side of the valve body;
[0007] The electromagnetic control valve comprises a coil arranged on both sides thereof, a fixed iron core is fixedly arranged at the top of the electromagnetic control valve, a movable iron core is connected to the bottom of the fixed iron core via a return spring, a first valve core is fixedly arranged at the bottom of the movable iron core, a notch is opened on the outer side of the first valve core, a lever is embedded in the notch, one end of the lever is rotatably connected to a partition plate arranged at the center of the valve body, and one end of the lever passes through the partition plate and is fixedly connected to the second valve core;
[0008] The heating and temperature measuring component comprises a cavity opened on the surface of the valve body, and a heating plate is arranged on one side of the inner wall of the cavity.
[0009] In one example, the second valve core is used to block the pipe opening of the air intake pipe located inside the valve body when the solenoid valve is closed.
[0010] In one example, a thermistor is further provided at the bottom of the inner wall of the cavity, and the thermistor is electrically connected to a temperature measuring connector.
[0011] In one example, the heating plate and the thermistor are both attached to the outer wall of the valve body for heating and testing the temperature.
[0012] The heating type drain and exhaust solenoid valve proposed by the utility model can bring the following beneficial effects:
[0013] 1. The heating type drain and exhaust solenoid valve can realize power-on driving to open the valve and power-off to close the valve by setting a lever and a second valve core in coordination with the control of the solenoid valve.
[0014] 2. The heated drain and exhaust solenoid valve has a cavity opened on the valve body, and a heating plate and a thermistor are arranged in the cavity. The heating plate can quickly heat up to melt the freezing point, avoiding the risk of ice forming at the valve mouth when used at low temperatures. At the same time, the temperature can be detected and controlled by cooperating with the thermistor and the temperature measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the solenoid valve of the utility model when the valve is powered on and opened;
[0018] Figure 3 This is a schematic diagram of the internal structure of the solenoid valve of the utility model when the power is cut off and the valve is closed;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model.
[0020] In the figure: 1. valve body; 2. electromagnetic control valve; 3. coil; 4. return spring; 5. first valve core; 6. notch; 7. lever; 8. second valve core; 9. fixed iron core; 10. air inlet pipe; 11. thermistor; 12. temperature measuring joint; 13. air outlet pipe; 14. cavity; 15. heating plate. DETAILED DESCRIPTION
[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.
[0022] like Figure 1 to Figure 4As shown, the embodiment of the utility model proposes a heating type drain and exhaust solenoid valve, comprising a valve body 1, a solenoid control valve 2 is fixedly provided on one side of the top of the valve body 1, an air inlet pipe 10 is opened on one side of the top of the valve body 1, an air outlet pipe 13 is fixedly connected to one side of the valve body 1, and a heating and temperature measuring component is provided on the other side of the valve body 1;
[0023] The electromagnetic control valve 2 includes a coil 3 arranged on both sides thereof, a fixed iron core 9 is fixedly provided at the top of the electromagnetic control valve 2, the bottom of the fixed iron core 9 is connected to a moving iron core through a reset spring 4, a first valve core 5 is fixedly provided at the bottom of the moving iron core, a notch 6 is opened on the outer side of the first valve core 5, a lever 7 is embedded in the notch 6, one end of the lever 7 is rotatably connected to a partition arranged at the center of the valve body 1, and one end of the lever 7 passes through the partition and is fixedly connected to a second valve core 8, the second valve core 8 is used to block the pipe opening of the intake pipe 10 placed inside the valve body 1 when the electromagnetic valve is closed.
[0024] The heating and temperature measuring component includes a cavity 14 opened on the surface of the valve body 1, a heating plate 15 is provided on one side of the inner wall of the cavity 14, and a thermistor 11 is also provided at the bottom of the inner wall of the cavity 14. The thermistor 11 is electrically connected to a temperature measuring connector 12. The heating plate 15 and the thermistor are both attached to the outer wall of the valve body 1 for heating and testing the temperature.
[0025] Working principle: When in use, the electromagnetic control valve 2 is energized, and under the electromagnetic action of the coil, the moving iron core moves upward, thereby lifting the first valve core 6 and the lever 7. Through the lever principle, the second valve core 6 connected to the other end of the lever 7 deflects downward and no longer blocks the pipe opening of the intake pipe 10. At this time, a mixture of hydrogen, water vapor and liquid water droplets enters the valve body through the intake pipe 10 to achieve pipeline circulation. When used in a low-temperature environment, the heating and temperature measuring component is started, and the heating plate 15 therein quickly heats up to melt the freezing point, thereby avoiding the risk of ice forming at the valve mouth under low-temperature use. At the same time, the thermistor 11 and the temperature measuring probe 12 are used to realize temperature detection and control. When closed, the electromagnetic control valve 2 is powered off, and under the action of the reset spring 4, the first valve core 6 and the lever 7 are pressed down, thereby causing the second valve core 6 to deflect upward, blocking the pipe opening of the intake pipe 10, and closing the valve.
[0026] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A heated drain and exhaust solenoid valve, comprising a valve body (1), a solenoid control valve (2) fixedly provided on one side of the top of the valve body (1), an air inlet pipe (10) opened on one side of the top of the valve body (1), an air outlet pipe (13) fixedly connected to one side of the valve body (1), and a heating and temperature measuring component provided on the other side of the valve body (1), characterized in that: The electromagnetic control valve (2) comprises a coil (3) arranged on both sides thereof, a fixed iron core (9) is fixedly arranged at the top of the electromagnetic control valve (2), the bottom of the fixed iron core (9) is connected to a moving iron core via a return spring (4), a first valve core (5) is fixedly arranged at the bottom of the moving iron core, a notch (6) is provided on the outer side of the first valve core (5), a lever (7) is embedded in the notch (6), one end of the lever (7) is rotatably connected to a partition plate arranged at the center of the valve body (1), and one end of the lever (7) passes through the partition plate and is fixedly connected to a second valve core (8); The heating and temperature measuring component comprises a cavity (14) opened on the surface of the valve body (1), and a heating plate (15) is provided on one side of the inner wall of the cavity (14).
2. A heating type drain and exhaust solenoid valve according to claim 1, characterized in that: The second valve core (8) is used to block the pipe opening of the air inlet pipe (10) located inside the valve body (1) when the solenoid valve is closed.
3. A heating type drain and exhaust solenoid valve according to claim 1, characterized in that: A thermistor (11) is also provided at the bottom of the inner wall of the cavity (14), and the thermistor (11) is electrically connected to a temperature measuring connector (12).
4. A heating type drain and exhaust solenoid valve according to claim 3, characterized in that: The heating plate (15) and the thermistor are both attached to the outer wall of the valve body (1) and are used for heating and testing the temperature.