Proportional valve body with gas source adaptive identification and control method using the same

Abstract

The present invention provides a proportional valve body with adaptive identification of gas source and a control method using the same. The proportional valve body includes a proportional valve body, an adaptive identification component, a proportional adjustment component, a controller and a valve core component. The proportional valve body is provided with an air inlet chamber, a connecting chamber and an air outlet chamber in sequence; the adaptive identification component is arranged in the air inlet chamber, the proportional adjustment component is arranged in the connecting chamber, and the valve core component is arranged in the air outlet chamber; the adaptive identification component automatically identifies the type of gas introduced and outputs an electrical signal to the controller, and the controller controls the proportional adjustment component, and controls the valve core component through the proportional adjustment component to achieve pressure and flow regulation of the air outlet chamber. Through the above scheme, the type of input gas source is automatically identified, and the corresponding gas source control code is output, so as to achieve adaptive control of multiple gas sources of the proportional valve body, precise adjustment of different gas sources, and improve the universality and expansibility of the valve body.

Description

Technical Field

[0001] The present invention relates to the technical field of proportional valves applied to control systems of gas appliances such as gas water heaters and heating furnaces, and in particular to a proportional valve body with adaptive gas source identification and a control method using the proportional valve body. Background Art

[0002] The proportional valve is one of the most important core components in the field of gas water heaters and heating furnaces. It can mainly control the input gas source gas, that is, the proportional valve can adjust and control the ratio of gas and air to obtain a stable gas and air ratio, maintain a stable gas combustion condition, improve combustion efficiency, and reduce pollution emissions. In addition, the proportional valve mainly controls the input gas source gas. The controller outputs the corresponding current signal according to the current workload of the whole machine, controls the stroke of the solenoid valve, and adjusts the valve body valve to a certain opening, thereby realizing the control of the gas flow.

[0003] However, currently most proportional valves only function as gas inlet, gas pressure stabilization and gas proportion control valves, and are unable to identify the type of gas source and output corresponding control signals for different gas sources. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned inability to achieve precise regulation for different gas sources, and to provide a proportional valve body with adaptive gas source identification and a control method using the same.

[0005] To achieve the above object, the solution of the present invention is:

[0006] A proportional valve body with adaptive air source identification comprises a proportional valve body, an adaptive identification component, a proportional adjustment component, a controller and a valve core component, wherein the proportional valve body is provided with an air inlet chamber, a connecting chamber and an air outlet chamber in sequence; the adaptive identification component is arranged in the air inlet chamber, the proportional adjustment component is arranged in the connecting chamber, and the valve core component is arranged in the air outlet chamber; the adaptive identification component automatically identifies the type of air introduced and outputs an electrical signal to the controller, the controller controls the proportional adjustment component, and the valve core component is controlled through the proportional adjustment component to achieve pressure and flow regulation of the air outlet chamber.

[0007] Furthermore, the adaptive identification component includes an impeller fixing seat, a magnetic impeller rotor, blades and a magnetic sensor. The magnetic impeller rotor and blades are connected together through the impeller fixing seat and are arranged on the inner wall of the air intake chamber. The magnetic sensor is arranged on the outer wall of the proportional valve body corresponding to the magnetic impeller rotor to sense the magnetic signal generated by the magnetic impeller rotor. The magnetic signal is converted into an electrical signal by the magnetic sensor and transmitted to the controller.

[0008] Furthermore, the adaptive identification component further includes a fixing ring, and the fixing ring is clamped on the impeller fixing seat to fix the impeller fixing seat in the air intake chamber.

[0009] Furthermore, it is characterized in that the ratio adjustment component includes a first adjustment component and a second adjustment component which are sequentially arranged in the connecting chamber.

[0010] Furthermore, the communicating chamber is formed as a right-angled cavity, and the first adjusting component and the second adjusting component are respectively located on two right-angled sides of the right-angled cavity.

[0011] Furthermore, the first regulating component includes a square valve and a first solenoid valve, wherein the first solenoid valve is arranged on the right side of the square valve to control the left and right movement of the square valve.

[0012] Furthermore, the second regulating assembly includes a second solenoid valve, which is arranged below the valve core assembly to control the up and down movement of the valve core assembly.

[0013] Furthermore, the valve core assembly includes a funnel-shaped ball valve, a valve core and a valve seat. The ball valve is connected to the valve core and is connected to the valve seat through the valve core. A magnet is provided in the valve seat. The valve core assembly cooperates with the second solenoid valve to move up and down.

[0014] Furthermore, the valve core assembly also includes a symmetrically arranged elastic sealing sheet, which extends out of the valve core assembly and is connected to a base inside the valve body.

[0015] Furthermore, the controller includes: an acquisition module: used to acquire the electrical signal U output by the magnetic sensor; a processing module: receiving the electrical signal U, comparing the electrical signal U with a predetermined electrical signal U0, and outputting an adaptation control code.

[0016] A control method for a proportional valve body with air source adaptive identification comprises the following steps:

[0017] The air source enters the air inlet chamber through the air inlet at different speeds;

[0018] The air source drives the blades and the magnetic impeller rotor to rotate in sequence, and the magnetic impeller rotor generates a magnetic field force;

[0019] The magnetic sensor senses the magnetic field force, and the magnetic sensor outputs an electrical signal U which is transmitted to the control module;

[0020] The control module receives the electrical signal U and transmits the electrical signal U to the processing module;

[0021] The processing module receives the electrical signal U and compares it with the predetermined electrical signal U0 in the processing module, and the processing module outputs the optimal adaptive control code;

[0022] The adaptive control code corresponds to a corresponding electrical signal, which controls the magnetic poles of the electromagnetic valves in the first regulating component and the second regulating component, thereby controlling the left-right movement of the square valve and the up-and-down movement of the ball valve.

[0023] After adopting the above technical solution, during implementation, due to the use of an adaptive identification component, different gas sources enter the air intake chamber at different speeds, the adaptive identification component generates different magnetic field forces, and the adaptive identification component converts the magnetic signal so that the adaptive identification component generates different potential signals, and then transmits the potential signal to the controller. The potential signals are compared inside the controller, and the controller controls the proportional adjustment component, which controls the flow and pressure entering the valve core component, thereby realizing gas source adaptation and automatically controlling the gas source flow and pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A cross-sectional view of an embodiment provided by the present invention;

[0026] Figure 2 A process control diagram provided by the present invention;

[0027] Figure 3 A cross-sectional view of the adaptive recognition component provided by the present invention;

[0028] Figure 4 A cross-sectional view of the valve core assembly provided by the present invention;

[0029] Figure 5 A cross-sectional view of a first solenoid valve and a second solenoid valve provided by the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Embodiment 1:

[0032] See also Figure 1 and Figure 2 This embodiment discloses a proportional valve body with air source adaptive identification, including a proportional valve body 1, an adaptive identification component 2, a proportional adjustment component 3, a controller 4 and a valve core component 5, wherein:

[0033] The proportional valve body 1 is provided with an air inlet chamber 11, a connecting chamber 12 and an air outlet chamber 13 in sequence; the self-adaptive recognition component 2 is arranged in the air inlet chamber 11, the proportional adjustment component 3 is arranged in the connecting chamber 12, and the valve core component 5 is arranged in the air outlet chamber 13; the adaptive recognition component 2 automatically identifies the type of gas introduced and outputs an electrical signal to the controller 4, the controller 4 controls the proportional adjustment component 3, and controls the valve core component 5 through the proportional adjustment component 3 to realize the pressure and flow regulation of the air outlet chamber 13.

[0034] like Figure 3 As shown, the adaptive identification component 2 includes an impeller fixing seat 21, a magnetic impeller rotor 22, blades 23, a magnetic sensor 24 and a fixing clamp 25. The fixing clamp is clamped on the impeller fixing seat to fix the impeller fixing seat on the inner wall of the air intake chamber 11. The magnetic impeller rotor 22 and the blades 23 are connected and arranged in the air intake chamber 11 through the impeller fixing seat 21. The magnetic sensor 24 is arranged on the outer wall of the proportional valve body 1 corresponding to the magnetic impeller rotor 22 to sense the magnetic signal generated by the magnetic impeller rotor 22. The magnetic signal is converted into an electrical signal by the magnetic sensor 24 and transmitted to the controller 4. The air source enters the air intake chamber 11 from the air inlet at a certain speed, pushing the blades 23 to rotate. According to the coaxial connection, the magnetic impeller rotor 22 rotates to generate a corresponding magnetic field force. The magnetic sensor 24 outside the air intake chamber 12 receives the magnetic field signal and converts it into a potential signal internally. In this embodiment, the magnetic sensor 24 adopts a Hall element, which is fixed on the outer wall of the valve body 1 corresponding to the magnetic impeller rotor 22 through a fixed seat to receive the magnetic field force generated by the rotation of the magnetic impeller rotor 22. The Hall element is connected to the controller through a signal output line.

[0035] Since the gas flow rate of each gas source entering the air inlet chamber 11 is different, the radial velocity component and angular velocity generated are also different, and the potential signal output by the Hall element corresponding to the gas source is also different. Through the difference between the potential signal generated by the Hall element and the potential signal of the predetermined gas source at the controller end, adaptive identification control code 0, 1, 2... is performed, and the optimal adaptive control code is output to achieve multi-gas source adaptive control of the proportional valve body and improve the scalability of the valve body function. Then, through the difference between the potential signal output by the Hall element and the potential signal of the predetermined gas source at the controller end, the output current size is accurately judged, and the opening size of the square valve 311 and the ball valve 51 of the electromagnetic valve in the connecting chamber 12 is controlled, so as to facilitate the adjustment of the gas source flow, the valve body cut-off function and other functions.

[0036] See also Figure 1 The ratio adjustment component 3 includes a first adjustment component 31 and a second adjustment component 32 which are sequentially arranged in the communication chamber 12. The communication chamber 12 is formed as a right-angle cavity, and the first adjustment component 31 and the second adjustment component 32 are respectively located on two right-angle sides of the right-angle cavity. The first adjustment component 31 and the second adjustment component are arranged on two right-angle sides, which makes it easier to control the flow rate and pressure of the gas source entering the valve core component, and can act on the valve core component at the same time.

[0037] The first regulating group 31 includes a square valve and a first solenoid valve 312. The first solenoid valve 312 is arranged on the right side of the square valve 311 to control the left and right movement of the square valve 311. The flow rate and size of the gas source entering the outlet chamber through the inlet chamber are controlled to adjust the flow rate and pressure of the gas source.

[0038] The second regulating assembly 32 includes a second electromagnetic valve 321, which is disposed below the valve core assembly 5 to control the up and down movement of the valve core assembly 5. The first regulating assembly and the second regulating assembly jointly regulate the flow and pressure of the gas source.

[0039] like Figure 4 The valve core assembly shown includes a ball valve 51 arranged at the upper end of the valve core 52, a valve core 52 and a valve seat 53 located at the bottom of the valve core 52; wherein, the funnel-shaped solid ball valve 51 is arranged toward the air outlet, and the ball valve 51 cooperates with a fixed base symmetrically arranged inside the valve body 1. When the ball valve 51 is in an unactivated state, the ball valve 51 is stationary on the fixed base 11 to prevent the air source from entering the valve body 1; when in a working state, the ball valve 51 moves up and down on the fixed base to control the amount of the air source, and the ball valve 51 will never move below the fixed base.

[0040] like Figure 4As shown, the valve core assembly 5 also includes a symmetrically arranged elastic sealing sheet 54 for isolation and sealing, wherein the elastic sealing sheet 54 is mainly made of a nitrile rubber diaphragm, which is clamped in the valve core 52 and the base inside the valve body 1, so that the upper and lower parts of the nitrile rubber diaphragm form two independent spaces; the nitrile rubber diaphragm is used to adjust the movement of the diaphragm according to the pressure of the incoming air source. Specifically, in the pressure stabilization function, when the air source inlet pressure suddenly increases under the condition of the proportional valve current being unchanged, the surface pressure of the diaphragm increases. When the pressure of the air source is increased, the expansion force of the diaphragm toward the outside increases, which drives the valve core to move downward and thus drives the ball valve 51 to move downward. The smaller the distance between the ball valve 51 and the fixed base, the smaller the opening of the air outlet, thereby reducing the flow rate and pressure at the air outlet. On the contrary, when the air source inlet pressure decreases, the surface pressure of the diaphragm decreases, prompting the diaphragm to shrink inward, pushing the valve core 52 upward, thereby driving the ball valve 51 upward, increasing the distance between the ball valve 51 and the fixed base, increasing the opening, and increasing the air outlet flow rate, thereby achieving a pressure stabilization effect. Two elastic strips are also provided at both ends of the valve seat, which are clamped on the internal base of the valve body to control the up and down movement of the valve seat 53. When the valve core assembly 5 is working, the elastic strip supports the valve seat 53 to be suspended in the air, and there is a certain gap with the second electromagnetic valve 321. Conveniently, the first electromagnetic part 321 can better act on the valve core assembly 5, thereby achieving the effect of controlling the size of the air source.

[0041] like Figure 5 As shown, the first solenoid valve 312 and the second solenoid valve 321 both include a fixing bracket, an iron core and a proportional valve coil, the fixing bracket is mounted on the cover, the iron core is mounted in the middle of the fixing bracket, a fixing nut is provided on the top of the fixing bracket, and the fixing nut is fixed to one end of the iron core exposed from the bottom of the fixing bracket, so as to interact with the magnet 531 in the valve seat to control the opening and closing of the ball valve 51 and the square valve 311.

[0042] The connecting chamber includes a square valve 311 and a second solenoid valve 312, which are arranged perpendicular to the direction of the air outlet chamber 12. The square valve 311 controls the air intake source to enter the air outlet chamber 12, and cooperates with the second solenoid valve 321 to control the size of the current, find the optimal air source control code, and control the opening size of the square valve 311.

[0043] The controller includes an acquisition module and a processing module; the acquisition module is used to acquire the electrical signal U output by the magnetic sensor, and the processing module is used to receive the electrical signal U, compare the electrical signal U with the predetermined electrical signal U0, and output an adaptation control code.

[0044] Embodiment 2:

[0045] A control method for a proportional valve body with air source adaptive identification comprises the following steps:

[0046] Different air sources enter the air inlet chamber 11 through the air inlet at different speeds;

[0047] After the air source enters the air inlet chamber 11, it pushes the blades 23 and the magnetic impeller rotor 22 to rotate in sequence, and the magnetic impeller rotor 22 rotates to generate a magnetic field force;

[0048] The magnetic sensor 23 disposed on the outer wall of the proportional valve body uses a Hall element to sense the magnetic field force, and the Hall element internally converts the output electrical signal U and transmits it to the controller through the signal transmission line;

[0049] The acquisition module in the controller receives the electrical signal U and transmits the electrical signal U to the processing module;

[0050] The processing module compares the received electrical signal U with the predetermined electrical signal U0 in the processing module, using a one-to-one comparison, and then the processing module outputs the most suitable adaptive control code after the comparison;

[0051] The adaptive control code selects the corresponding electrical signal, which connects the first regulating component 31 and the second regulating component 32 through a line to control the magnetic poles of the solenoid valves in the first regulating component 31 and the second regulating component 32. The magnetic poles attract or repel the magnets in the first regulating component 31 and the valve core component 5, thereby controlling the left and right movement of the square valve 311 and the up and down movement of the ball valve 51.

[0052] Working process: the air source enters the air inlet at different speeds, pushing the blade 23 to rotate. The coaxially connected rotor 22 also rotates at the same speed. The magnetic impeller rotor 22 generates a corresponding magnetic field force by rotating and cutting the magnetic flux lines. The Hall element corresponding to the magnetic impeller rotor 22 senses the effect of the magnetic field force, outputs a corresponding potential signal, and transmits it to the controller, matching the optimal adaptive control code. According to the selected control code, the current is controlled to control the core magnetic poles of the first solenoid valve 312 and the second solenoid valve 321, and then the opening and closing states of the ball valve 51 and the square valve 311 are controlled, thereby controlling the flow of the air source; through the nitrile rubber diaphragm in the valve core assembly, according to the different pressures of the air source entering the valve body, the ball valve 51 is controlled to move up or down to limit the pressure of the air source at the air outlet, thereby achieving a stable pressure state. The magnetic field force generated is received by a Hall element, and the current is controlled by the controller end, thereby realizing the functions of voltage stabilization and adaptive identification of the air source.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A proportional valve body with air source adaptive identification, characterized in that: The proportional valve comprises a proportional valve body (1), an adaptive identification component (2), a proportional adjustment component (3), a controller (4) and a valve core component (5), wherein the proportional valve body (1) is provided with an air inlet chamber (11), a connecting chamber (12) and an air outlet chamber (13) in sequence; the adaptive identification component (2) is arranged in the air inlet chamber (11), the proportional adjustment component (3) is arranged in the connecting chamber (12), and the valve core component (5) is arranged in the air outlet chamber (13); the adaptive identification component (2) automatically identifies the type of gas introduced and outputs an electrical signal to the controller (4); the controller (4) controls the proportional adjustment component (3), and the valve core component (5) is controlled by the proportional adjustment component (3) to achieve pressure and flow regulation of the air outlet chamber (13); The adaptive identification component (2) comprises an impeller fixing seat (21), a magnetic impeller rotor (22), blades (23) and a magnetic sensor (24); the magnetic impeller rotor (22) and blades (23) are connected and arranged on the inner wall of the air intake chamber (11) through the impeller fixing seat (21); the magnetic sensor (24) is arranged on the outer wall of the proportional valve body (1) corresponding to the magnetic impeller rotor (22) to sense the magnetic signal generated by the magnetic impeller rotor (22); the magnetic signal is converted into an electrical signal by the magnetic sensor (24) and transmitted to the controller (4); different air sources enter the air intake chamber at different speeds, and the adaptive identification component (2) generates different magnetic field forces to achieve air source adaptation; the proportional adjustment component (3) comprises a first adjustment component (31) and a second adjustment component (32) which are arranged in sequence in the connecting chamber (12); The first regulating component (31) comprises a square valve (311) and a first solenoid valve (312); the first solenoid valve (312) is arranged on the right side of the square valve (311) to control the left and right movement of the square valve (311); The second regulating assembly (32) comprises a second solenoid valve (321), and the second solenoid valve (321) is arranged below the valve core assembly (5) to control the up and down movement of the valve core assembly (5).

2. The proportional valve body with air source adaptive identification according to claim 1, characterized in that: The adaptive identification component (2) further comprises a fixing clamp ring (25), wherein the fixing clamp ring (25) is clamped on the impeller fixing seat (21) to fix the impeller fixing seat (21) in the air intake chamber (11).

3. The proportional valve body with air source adaptive identification according to claim 1, characterized in that: The communicating chamber (12) is formed as a right-angled cavity, and the first adjustment component (31) and the second adjustment component (32) are respectively located on two right-angled sides of the right-angled cavity.

4. The proportional valve body with air source adaptive identification according to claim 3, characterized in that: The valve core assembly (5) comprises a funnel-shaped ball valve (51), a valve core (52) and a valve seat (53); the ball valve (51) is connected to the valve core (52), and is connected to the valve seat (53) via the valve core (52); a magnet (531) is provided in the valve seat (53); the valve core assembly moves up and down in coordination with the second solenoid valve (321).

5. The proportional valve body with air source adaptive identification according to claim 4, characterized in that: The valve core assembly (5) further comprises a symmetrically arranged elastic sealing sheet (54), which extends out of the valve core assembly (5) and is connected to a base inside the proportional valve body (1).

6. The proportional valve body with gas source adaptive identification according to claim 5, characterized in that: The controller comprises: An acquisition module: used for acquiring the electrical signal U output by the magnetic sensor (24); Processing module: receives the electrical signal U, compares the electrical signal U with the predetermined electrical signal U0, and outputs an adaptation control code.

7. A control method for a proportional valve body with adaptive air source identification according to claim 6, characterized in that: The steps include: The air source enters the air inlet chamber (11) through the air inlet at different speeds; The air source sequentially drives the blades (23) and the magnetic impeller rotor (22) to rotate, and the magnetic impeller rotor (22) generates a magnetic field force; The magnetic sensor (24) senses the magnetic field force, and the magnetic sensor (24) outputs an electrical signal U which is transmitted to an acquisition module in the controller (4); The acquisition module receives the electrical signal U and transmits the electrical signal U to the processing module; The received electrical signal U in the processing module is compared with the predetermined electrical signal U0 in the processing module, and the processing module outputs an adaptive control code; The adaptive control code corresponds to a corresponding electrical signal, and the electrical signal controls the magnetic poles of the electromagnetic valves in the first regulating component (31) and the second regulating component (32), thereby controlling the left-right movement of the square valve (311) and the up-and-down movement of the ball valve (51).

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