Exhaust device based on intelligent heat supply

Abstract

The utility model provides an exhaust device based on intelligent heat supply, which effectively solves the problem that the temperature supply effect of an intelligent heat supply system is influenced because the existing intelligent heat supply equipment capable of exhausting automatically cannot play a corresponding effect when the pressure of accumulated gas is small. The exhaust device further comprises an exhaust confirmation unit and a mobile terminal, the exhaust confirmation unit is used for obtaining an exhaust signal according to the detected flow in the heating pipeline and the detected temperature in the heating pipeline, and the exhaust signal is wirelessly output to the mobile terminal. The exhaust confirmation unit comprises a flow detection circuit and a signal output circuit, and exhaust signals comprise an early warning signal and a reminding signal, so that the heating effect of the heating pipeline is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heating monitoring, in particular to an exhaust device based on intelligent heating. Background Art

[0002] After the intelligent heating system operates for a long time, the water flow inside it will gradually turn into water vapor. If the water vapor cannot be discharged in time, it will cause the phenomenon of unbalanced air pressure in the intelligent heating system or the change of the flow rate of the provided water flow, and then the uneven temperature provided by the intelligent heating system, or even the phenomenon that the intelligent heating system stops working. The exhaust device in the intelligent heating system is used to discharge the gas in the intelligent heating system, including automatic and manual methods. For the convenience of people's use, the automatic exhaust method is more widely applied to the intelligent heating system.

[0003] For example, a kind of intelligent heating equipment provided by the Chinese utility model with the application number 201921911021.3 adopts the automatic exhaust method. It is provided with an exhaust valve channel to facilitate the discharge of the accumulated gas at the end of the intelligent heating radiator. When the pressure of the accumulated gas is large, the accumulated gas in the exhaust valve channel can be shunted and buffered by using two shunt branches, and the redundant accumulated gas is contained by a spring hose. When the accumulated gas is discharged, the spring hose automatically contracts, and the spring hose is positioned and fixed by the adsorption force generated by the magnet on the balance plate and the iron block on the outer wall of the exhaust valve channel, achieving a good effect. However, when the airflow of the accumulated gas is small, this intelligent heating equipment cannot achieve a good effect.

[0004] That is, the existing intelligent heating equipment with automatic exhaust cannot achieve the corresponding effect when the pressure of the accumulated gas is small, thus affecting the heating effect of the intelligent heating system.

[0005] Therefore, the utility model provides a new solution to solve this problem. Summary of the Invention

[0006] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide an exhaust device based on intelligent heating, which effectively solves the problem that the existing intelligent heating equipment with automatic exhaust cannot achieve the corresponding effect when the pressure of the accumulated gas is small, thus affecting the heating effect of the intelligent heating system.

[0007] The technical solution adopted is that an exhaust device based on intelligent heating includes an exhaust valve, a flow sensor, and a heating pipeline. The exhaust device further includes an exhaust confirmation unit and a mobile terminal. The exhaust confirmation unit is used to obtain an exhaust signal according to the detected flow rate and temperature in the heating pipeline, and the exhaust signal is wirelessly output to the mobile terminal.

[0008] The exhaust confirmation unit includes a flow detection circuit and a signal output circuit.

[0009] The exhaust signal includes a warning signal and a reminder signal.

[0010] Further, the flow detection circuit obtains a flow signal based on the flow rate in the heating pipeline detected by the flow sensor, obtains a flow change signal based on the flow signal, and starts the signal output circuit based on the flow change signal.

[0011] Further, the flow detection circuit performs a subtraction operation on the flow signal to obtain a flow change signal.

[0012] Further, the flow detection circuit performs an AND operation on the flow change signal and then outputs a warning signal, starts the signal output circuit based on the warning signal, and outputs the warning signal to the mobile terminal.

[0013] Further, the signal output circuit obtains a temperature signal based on the temperature in the heating pipeline, and outputs a reminder signal to the mobile terminal based on the temperature signal.

[0014] Further, the signal output circuit compares the temperature signal and then outputs a reminder signal to the mobile terminal.

[0015] The present utility model achieves the following beneficial effects:

[0016] This application further provides an exhaust confirmation unit and a mobile terminal. The exhaust confirmation unit is configured to obtain an exhaust signal according to the detected flow rate and temperature in the heating pipeline, and wirelessly output the exhaust signal to the mobile terminal, so as to remind the user to exhaust when the air flow in the heating pipeline is small, avoiding affecting the heating effect of the intelligent heating system, thus effectively solving the problem that the existing intelligent heating equipment for automatic exhaust cannot play a corresponding role when the air pressure is small, and ensuring the heating effect of the heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a framework schematic diagram of the present utility model.

[0018] Figure 2 It is a schematic diagram of the principle of the flow detection circuit of the present utility model.

[0019] Figure 3 It is a schematic diagram of the principle of the signal output circuit of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description of the embodiments in conjunction with the accompanying drawings. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification. Figures 1-3 In the following detailed description of the embodiments, the foregoing and other technical contents, features and effects of the present utility model will be clearly presented. The structural contents mentioned in the following embodiments are all referenced to the drawings of the specification.

[0021] The exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0022] An exhaust device based on intelligent heating, comprising an exhaust valve, a flow sensor, and a heating pipeline, characterized in that the exhaust device further comprises an exhaust confirmation unit and a mobile terminal, wherein the exhaust confirmation unit is used to obtain an exhaust signal according to the detected flow rate and temperature in the heating pipeline, and the exhaust signal is wirelessly output to the mobile terminal;

[0023] The exhaust confirmation unit comprises a flow detection circuit and a signal output circuit;

[0024] The exhaust signal includes a warning signal and a reminder signal.

[0025] The flow detection circuit is provided with a flow sensor U1 to detect the flow rate of the water inlet pipe of the heat exchange station to obtain a flow signal. The flow sensor U1 can be used with an ultrasonic flow sensor with a similar model such as SL7600. The flow signal is transmitted to the operational amplifier U1B in two paths through the resistor R6. One path is directly transmitted to the non-inverting terminal of the operational amplifier U1B through the resistor R6, and the other path is transmitted to the inverting terminal of the operational amplifier U1B after being delayed by the resistor R4 and the capacitor C3. Then, the operational amplifier U1B performs a subtraction operation on the two flow signals to obtain a flow change signal. When the flow change signal conducts the triode Q1 through the resistor R2, it indicates that the water flow change in the heating pipeline at this time and the previous moment is relatively large. At this time, the triode Q1 outputs a first signal through the diode D4. The diode D1 receives the pressure change signal detected by the pressure sensor in the heating pipeline. The pressure change signal can be obtained by monitoring the pressure in the heating pipeline by the pressure sensor and calculating the pressure signal. That is, the pressure change signal is obtained by performing a subtraction operation on the pressure signal in the same way as the flow signal using the operational amplifier. The pressure signal is collected by the pressure sensor provided in the existing heating system. Then, the OR gate circuit composed of the diode D4, the diode D1, and the resistor R7 performs an OR operation on the first signal and the pressure change signal to obtain a warning signal. The warning signal is output to the mobile terminal through the diode D2 and the switch S1, reminding the user to exhaust the heating system, and at the same time, the warning signal starts the signal output circuit;

[0026] The flow detection circuit includes a resistor R6. One end of the resistor R6 is connected to the out pin of the flow sensor U1. The other end of the resistor R6 is respectively connected to one end of a resistor R4, one end of a resistor R9, and the non-inverting input terminal of an operational amplifier U1B. The inverting input terminal of the operational amplifier U1B is respectively connected to the other end of the resistor R4, one end of a resistor R1, and one end of a capacitor C3. The inverting input terminal of the operational amplifier U1B, the output terminal of the operational amplifier U1B are respectively connected to the other end of the resistor R1, one end of a resistor R2. The other end of the resistor R2 is connected to the base of a triode Q1. The collector of the triode Q1 is respectively connected to one end of a resistor R5 and the positive electrode of a diode D4. The other end of the resistor R5 is respectively connected to the vcc pin of the flow sensor U1 and connected to a positive power supply VCC. The emitter of the triode Q1 is connected to one end of a resistor R3. The negative electrode of the diode D4 is respectively connected to the negative electrode of a diode D1, one end of a resistor R7, and the positive electrode of the diode D1. The positive electrode of the diode D1 is connected to a pressure change signal. The negative electrode of the diode D2 is connected to one end of a switch S1. The other end of the resistor R7 is respectively connected to the other end of the resistor R3, the other end of the capacitor C3, the gnd pin of the flow sensor U1 and connected to ground.

[0027] The signal output circuit uses a heat detector composed of a thermistor R15 and a resistor R14 to detect the temperature in the heating pipeline to obtain a temperature signal. Then, the detected temperature signal is transmitted to the operational amplifier U3 through a capacitor C2 for the warning signal to the thyristor Q2. The operational amplifier U3B compares the temperature signal with the temperature threshold signal provided by the resistor R10. The temperature threshold signal is the signal converted from the temperature maintained in the user's home all the time. When the operational amplifier U3B turns on the diode D5, it indicates that the temperature in the heating pipeline has dropped at this time. Then, the diode D5 outputs a reminder signal to turn on the relay K1. The relay K1 makes the switch S1 disconnect and makes the switch S2 close. Then, the reminder signal is output to the mobile terminal through the diode D3 to remind the user to exhaust immediately.

[0028] The signal output circuit includes a capacitor C2. One end of the capacitor C2 is respectively connected to the control electrode of a thyristor Q2, the negative electrode of a diode D1 in the flow rate detection circuit, and one end of a switch S1. The anode of the thyristor Q2 is respectively connected to one end of a resistor R14 and one end of a thermistor R15. The other end of the resistor R14 is respectively connected to one end of a resistor R10, the other end of a resistor R5 in the flow rate detection circuit, and is connected to a positive power supply VCC. The cathode of the thyristor Q2 is connected to the inverting terminal of an operational amplifier U3B. The non-inverting terminal of the operational amplifier U3B is connected to the other end of the resistor R10. The output terminal of the operational amplifier U3B is connected to the positive electrode of a diode D5. The negative electrode of the diode D5 is respectively connected to one end of a relay K1 and one end of a switch S2. The other end of the switch S2 is connected to the positive electrode of a diode D3. The negative electrode of the diode D3 is respectively connected to a mobile terminal and the other end of the switch S1 in the flow rate detection circuit. The other end of the thermistor R15 is respectively connected to the other end of the relay K1, the other end of the capacitor C2, the other end of a resistor R7 in the flow rate detection circuit, and is connected to ground.

[0029] In actual use, if the flow rate signal collected by the flow rate detection circuit is 3.5V, and the flow rate signal after the resistor R4 and the capacitor C3 perform delay is 2.8V, then the obtained flow rate change signal is 0.8V. The flow rate change signal is output as a first signal through a triode Q1. The diode D1 receives a pressure change signal of 0.8V. Then, an OR gate circuit composed of a diode D4, the diode D1, and a resistor R7 is turned on to output an early warning signal. The early warning signal is output to the mobile terminal. The early warning signal turns on the signal output circuit. The signal output circuit uses a detector composed of a thermistor R15 and a resistor R14 to detect a temperature signal of 2.5V of a heating pipeline. The preset temperature threshold signal is 2.3V. Then, the operational amplifier U3B outputs a reminder signal through the diode D5. The reminder signal is output to the mobile terminal through the closed switch S2 and the diode D3. At this time, the early warning signal stops being output to the mobile terminal.

[0030] When the utility model is in use, the exhaust device further includes an exhaust confirmation unit and a mobile terminal. The exhaust confirmation unit includes a flow detection circuit and a signal output circuit. The flow detection circuit is provided with a flow sensor U1 to detect the flow of the water inlet pipe of the heat exchange station to obtain a flow signal. The flow signal is transmitted to an operational amplifier U1B in two paths through a resistor R6. Then, the operational amplifier U1B performs a subtraction operation on the two flow signals to obtain a flow change signal. When the flow change signal turns on a triode Q1 through a resistor R2, at this time, the triode Q1 outputs a first signal through a diode D4. A diode D1 receives the pressure change signal detected by the pressure sensor in the heating pipeline. Then, an OR gate circuit composed of the diode D4, the diode D1, and a resistor R7 performs an OR operation on the first signal and the pressure change signal to obtain a warning signal. The warning signal is output to the mobile terminal through a diode D2 and a switch S1. At the same time, the warning signal starts the signal output circuit. The signal output circuit uses a detector composed of a thermistor R15 and a resistor R14 to detect the temperature in the heating pipeline to obtain a temperature signal. Then, the detected temperature signal passes through the warning signal and transmits a thyristor Q2 to an operational amplifier U3 through a capacitor C2. The operational amplifier U3B compares the temperature signal with the temperature threshold signal provided by a resistor R10. When the operational amplifier U3B turns on a diode D5, it indicates that the temperature in the heating pipeline has dropped at this time. Then, the diode D5 outputs a reminder signal to turn on a relay K1. The relay K1 disconnects the switch S1 and closes the switch S2. Then, the reminder signal is output to the mobile terminal through a diode D3, reminding the user to exhaust immediately.

[0031] The utility model achieves the following beneficial effects:

[0032] (1) In this application, the exhaust device is further provided with an exhaust confirmation unit and a mobile terminal. The exhaust confirmation unit is used to obtain an exhaust signal according to the detected flow in the heating pipeline and the temperature in the heating pipeline. The exhaust signal is wirelessly output to the mobile terminal, so as to realize that when the airflow of the accumulated gas in the heating pipeline is small, the user can be reminded to exhaust by means of the mobile terminal, avoiding affecting the heating effect of the intelligent heating system, and effectively solving the problem that the existing intelligent heating equipment for automatic exhaust cannot play a corresponding role when the pressure of the accumulated gas is small, and ensuring the heating effect of the heating system.

[0033] (2) In this application, the flow detection circuit included in the exhaust confirmation unit detects the flow in the heating pipeline, judges whether the flow has changed significantly, and at the same time receives the pressure change signal. An OR gate circuit composed of the diode D4, the diode D1, and the resistor R7 performs an OR operation to obtain a warning signal and outputs it to the mobile terminal, forming a preliminary reminder to the user.

[0034] (3)The exhaust confirmation unit provided in this application includes a signal output circuit that detects the temperature of the heating pipeline to obtain a temperature signal, and compares the temperature signal with a temperature threshold signal based on the operational amplifier U3B, so as to output a reminder signal to the mobile terminal, thereby reminding the user again, and further ensuring the heating effect of the heating pipeline.

Claims

1. An exhaust device based on intelligent heating, comprising an exhaust valve, a flow sensor, and a heating pipeline, characterized in that, The exhaust device further includes an exhaust confirmation unit and a mobile terminal. The exhaust confirmation unit is configured to obtain an exhaust signal based on the detected flow rate and temperature in the heating pipeline, and wirelessly output the exhaust signal to the mobile terminal; The exhaust confirmation unit includes a flow rate detection circuit and a signal output circuit; The exhaust signal includes a warning signal and a reminder signal.

2. The exhaust device based on intelligent heating according to claim 1, wherein, The flow rate detection circuit obtains a flow rate signal based on the flow rate in the heating pipeline detected by the flow rate sensor, obtains a flow rate change signal based on the flow rate signal, and starts the signal output circuit based on the flow rate change signal.

3. The exhaust device based on intelligent heating according to claim 2, wherein, The flow rate detection circuit performs a subtraction operation on the flow rate signal to obtain a flow rate change signal.

4. The exhaust device based on intelligent heating according to claim 2, characterized in that The flow rate detection circuit performs an AND operation on the flow rate change signal and then outputs a warning signal, starts the signal output circuit based on the warning signal, and outputs the warning signal to the mobile terminal.

5. The exhaust device based on intelligent heating according to claim 1, characterized in that The signal output circuit obtains a temperature signal based on the temperature in the heating pipeline and outputs a reminder signal to the mobile terminal based on the temperature signal.

6. The exhaust device based on intelligent heating according to claim 5, wherein The signal output circuit compares the temperature signal and then outputs a reminder signal to the mobile terminal.

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