Steam room capable of preventing people from being trapped

Abstract

A steam room capable of preventing people from being trapped belongs to the technical field of steam equipment and comprises a steam room body, a humidity probe, a temperature probe, a pyroelectric detection module, a WiFi data sending module, a single chip microcomputer module, a humidity monitoring circuit, a temperature monitoring circuit and a control relay. The humidity probe, the temperature probe and the pyroelectric detection module are mounted at the outer upper end of the steam room body; the WiFi data sending module, the single-chip microcomputer module, the humidity monitoring circuit, the temperature monitoring circuit and the control relay are installed in the element box and electrically connected, and the element box is installed on the outer side of the steam room body. When a worker stays in the novel steam room, the electric roller shutter door is automatically powered off, so that the probability that the worker stays in the steam room is subsequently injured by steam is reduced; temperature and humidity data monitored in real time in the steam room can be transmitted in a wireless mode, the alarm can give an alarm on site in real time to prompt workers to clean and overhaul in time when water is accumulated at the lower end in the steam room body under extreme conditions, and the quality of processed cables and the like is guaranteed.

Description

A type of steam room for preventing people from getting trapped Technical Field

[0001] This utility model relates to the field of steam equipment technology, and in particular to a steam room designed to prevent people from getting trapped. Background Technology

[0002] Industrial steam chambers serve multiple purposes in industry, primarily including disinfection and sterilization, drying and heating, and chemical and pharmaceutical applications. Their main supporting equipment includes steam generators and piping. For example, in cable production steam chambers (also known as cable cross-linking chambers), high-pressure steam generated by an external steam generator enters the chamber, causing a cross-linking reaction in the cable insulation layer inside, thereby improving the cable's heat resistance, mechanical strength, and chemical stability (waste steam is discharged from the exhaust pipe).

[0003] Steam chambers used in cable production are generally large, requiring multiple workers to operate the equipment while inserting or removing cables. This presents a safety hazard: some workers might leave the steam chamber and carelessly close the electric roller shutter door, leaving other workers inside who, for various reasons (such as inspecting valves or checking for cracks), remain inside. Once the electric door closes, these workers could subsequently suffer burns from the high temperatures. Furthermore, existing steam chambers lack temperature and humidity monitoring and wireless data transmission capabilities. Workers must physically approach the chamber to observe the readings on hygrometers and thermometers, which can be inconvenient. Summary of the Invention

[0004] To overcome the drawbacks of existing steam rooms due to structural limitations, as described in the background art, this utility model provides a steam room that automatically de-energizes and does not close when staff close the electric roller shutter door of the steam room or when other staff members remain inside, preventing the possibility of subsequent steam injury to the remaining staff. It can also provide on-site alerts to staff when excessive water accumulates in the lower part of the steam room, and wirelessly transmits real-time temperature and humidity data. Staff not on-site can access this data in real time via smartphone or PC and take necessary actions (e.g., if the temperature is too low, indicating the steam generator is not outputting steam). This provides convenience for staff and ensures the quality of processed cables, etc., making it a steam room designed to prevent people from getting trapped.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A steam room designed to prevent people from getting trapped includes a steam room body, a humidity probe, a temperature probe, a pyroelectric detection module, a WiFi data transmission module, and a microcontroller module. It also includes a humidity monitoring circuit, a temperature monitoring circuit, and a control relay. The humidity probe, temperature probe, and pyroelectric detection module are fixedly installed inside a housing, which is fixedly installed on the upper part of the steam room body. The WiFi data transmission module, microcontroller module, humidity monitoring circuit, temperature monitoring circuit, and control relay are installed in a component box, which is fixedly installed on the outside of the steam room body. The signal output terminals of the humidity and temperature monitoring circuits are electrically connected to the two signal input terminals of the microcontroller module. The signal output terminal of the microcontroller module is electrically connected to the signal input terminal of the WiFi data transmission module. The power output terminal of the relay is connected in series with a power switch and electrically connected to the power input terminal of the electric roller shutter door of the steam room body. The power output terminal of the pyroelectric detection module is electrically connected to the power input terminal of the relay. The terminals of the humidity probe and temperature probe are electrically connected in series between the two signal terminals of the humidity and temperature monitoring circuits, respectively.

[0007] Furthermore, the detection surfaces of the humidity probe, temperature probe, and pyroelectric detection module are located at the upper end of the steam chamber body.

[0008] Furthermore, the humidity monitoring circuit and the temperature monitoring circuit have the same structure, both including two resistors connected by circuit board wiring, with one end of the two resistors connected together.

[0009] Furthermore, the lower end of the steam chamber body has an installation groove, in which a liquid level probe is fixedly installed, and the probe rod of the liquid level probe is located at the upper end of the installation groove.

[0010] Furthermore, the liquid level probe is equipped with an alarm installed in the component box, and the power output terminal of the liquid level probe is electrically connected to the power input terminal of the alarm.

[0011] Compared with the prior art, the advantages of this utility model are: (1) Based on the steam room body, when a staff member operates the power switch to close the electric roller shutter door of the steam room, or when other staff members are staying in the steam room, the electric roller shutter door will automatically lose power and not close, preventing the chance of the staff members staying in the steam room being injured by steam; (2) Under the action of the humidity monitoring circuit and the temperature monitoring circuit, the real-time temperature and humidity data in the steam room can be wirelessly transmitted. Staff members who are not on site can understand the relevant data in real time through smartphones or PCs, and take action on site when necessary (such as the temperature being too low, indicating that the steam generator is not outputting steam, etc., so the steam generator can be repaired in a targeted manner), which brings convenience to the staff and ensures the quality of processed cables, etc.; (3) Under the action of the liquid level probe and the alarm, in extreme cases, water accumulates at the lower end of the steam room body (the steam discharge channel is blocked and cools into water that accumulates at the lower end of the steam room body), the alarm will provide real-time on-site alarm to remind the staff to clean and repair in time, which also ensures the quality of processed cables, etc. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 is the circuit diagram of this utility model. Detailed Implementation

[0015] As shown in Figures 1 and 2, a steam chamber designed to prevent people from getting trapped includes a steam chamber body 1, a power module A1, a power switch S1, a humidity probe RS, a temperature probe RT, a pyroelectric detection module A2, a WiFi data transmission module A4, and a microcontroller module A3. It also includes a humidity monitoring circuit 2, a temperature monitoring circuit 3, and a control relay J1. The humidity probe RS, temperature probe RT, and pyroelectric detection module A2 are fixedly installed inside a housing 4. The upper outer part of the steam chamber body 1 has three openings, and the housing 4 is fixedly installed in the upper outer part of the steam chamber body 1. The power module A1, power switch S1, WiFi data transmission module A4, microcontroller module A3, humidity monitoring circuit 2, temperature monitoring circuit 3, and control relay J1 are installed on a circuit board inside a component box 5, which is fixedly installed on the outer left front side of the steam chamber body 1.

[0016] As shown in Figures 1 and 2, the humidity probe RS, temperature probe RT, and pyroelectric detection module A2 have their detection surfaces located in the upper middle part of the steam chamber body 1 through three openings. A heat-insulating glass (for heat insulation) is installed at the lower end of the detection surface of the pyroelectric detection module A2. The humidity monitoring circuit includes two resistors R1 and R2 connected by circuit board wiring, with one end of each resistor connected. The temperature monitoring circuit includes two resistors R3 and R4 connected by circuit board wiring, with one end of each resistor connected. There is a recessed mounting groove 101 at the lower rear left of the steam chamber body 1. A liquid level probe W is fixedly installed in the mounting groove 101. The detection rod of the liquid level probe W is located at the upper end of the mounting groove 101, and the lower end of the detection rod of the liquid level probe W is at the same horizontal level as the lower end of the steam chamber body 1. The mounting groove 101 and the outer side of the liquid level probe W are sealed with sealant. The level probe W is equipped with an alarm B installed in the component box. The power input terminals of the level probe W and the power output terminals 3 and 4 of the power module A1 are connected by wires. The power output terminal 3 and the negative power input terminal 2 of the level probe W are connected to the power input terminals of the alarm B by wires.

[0017] As shown in Figures 1 and 2, the power input terminals 1 and 2 of power module A1 are connected to the two poles of the 220V AC power supply via wires. The power output terminals 3 and 4 of power module A1 are connected to the power input terminals 1 and 2 of pyroelectric detection module A2, the power input terminals 1 and 2 of WiFi data transmission module A4, the power input terminals 1 and 2 of microcontroller module A3, the other end of resistor R1 (power output terminal 4 of power module A1) of the humidity monitoring circuit, and the other end of resistor R3 (power output terminal 4 of power module A1) of the temperature monitoring circuit via wires, and are also connected to the control power input terminal of relay J1 via wires. The other end of resistor R2 (signal output terminal of humidity monitoring circuit) and resistor R4 (signal output terminal of temperature monitoring circuit) are connected to the two signal input terminals 3 and 4 of microcontroller module A3 via wires. The signal output terminal of the microcontroller module A3 and the signal input terminal of the WiFi data transmission module A4 are connected by wires. The normally closed contact terminal and negative power terminal 2 of the relay J1 are connected to the power input terminals 1 and 2 of the power switch S1 by wires. The positive and negative and negative and positive power input terminals of the motor M of the electric roller shutter door are connected to the power output terminals 3, 4 and 5, and 6 of the power switch S1 by wires. The power output terminals 3 and 2 of the pyroelectric detection module A2 are connected to the power input terminals of the relay J1 by wires. The two ends of the humidity probe RS are connected to the other end of the resistor R1 and the positive power output terminal 3 of the power module A1 by wires. The two ends of the temperature probe RT are connected to the other end of the resistor R3 and the positive power output terminal 3 of the power module A1 by wires.

[0018] As shown in Figures 1 and 2, this new type of steam chamber, based on the main body 1, has multiple functions, mainly including disinfection and sterilization, drying and heating, chemical and pharmaceutical applications, etc. For example, in the case of a steam chamber used in cable production (also known as a cable cross-linking chamber), high-pressure steam generated by an external steam generator (not shown in the figure) enters the chamber of the main body 1, causing the cable insulation layer inside the chamber to undergo a cross-linking reaction, thereby improving the cable's heat resistance, mechanical strength, and chemical stability (waste steam is discharged from the exhaust pipe 103). After the 220V power supply enters the power input terminal of the power module A1, the 12V DC power output from pins 3 and 4 of the power module A1 enters the power input terminals of the pyroelectric detection module A2, the WiFi data transmission module A4, the microcontroller module A3, the humidity monitoring circuit, and the temperature monitoring circuit, enabling these circuits to operate. When the electric roller shutter door 102 of the steam room body 1 is closed and there are no personnel inside, pin 3 of the pyroelectric detection module A2 does not output a high level to the positive power input terminal of relay J1. Relay J1 will not be energized, closing its control power input terminal and normally closed contact. Therefore, power switch S1 will be energized, allowing personnel to control the closing of the electric roller shutter door. Conversely, when the electric roller shutter door 102 of the steam room body 1 is closed and there are personnel inside, pin 3 of the pyroelectric detection module A2 outputs a high level to the positive power input terminal of relay J1. Relay J1 will be energized, opening its control power input terminal and normally closed contact. Therefore, power switch S1 will not be energized, preventing personnel from controlling the closing of the electric roller shutter door. When the operator moves the handle of power switch S1 to the left or right, pins 1 and 2, and pins 3 and 4 or pins 5 and 6 of power switch S1 are connected respectively. This energizes the positive and negative or negative and positive power input terminals of the motor M of the electric roller shutter door, causing the door (a mature technology) to close or open. When the steam in the steam chamber 1 is venting smoothly and there is no water accumulation at the bottom, the probe of the level probe W will not be submerged. Therefore, the power output terminal of the level probe W will not output power, and the alarm B will not be energized or sound, indicating that there is very little water in the steam chamber 1. When the steam in the steam chamber 1 is not venting smoothly and there is water accumulation at the bottom, the probe of the level probe W will be submerged. In this case, pin 3 of the power output terminal of the level probe W will output power to the positive power input terminal of the alarm B, energizing the alarm B and causing it to sound, indicating that there is a significant amount of water in the steam chamber 1.

[0019] As shown in Figures 1 and 2, when steam is introduced into the steam chamber body 1, the resistance value of the thermistor RT is relatively small when the temperature is high (the voltage drop across resistor R3 is relatively large). Thus, the 12V power supply enters the microcontroller module A3 through the voltage division of the thermistor RT and resistor R3, and the voltage drop and current limiting through resistor R4, resulting in a relatively high voltage at pin 4. When the temperature is low, the resistance value of the thermistor RT is relatively large (the voltage drop across resistor R3 is relatively small). Thus, the 12V power supply enters the microcontroller module A3 through the voltage division of the thermistor RT and resistor R3, and the voltage drop and current limiting through resistor R4, resulting in a relatively low voltage at pin 4. When the humidity inside the steam chamber 1 is high, the resistance value of the humidity-sensitive resistor RS is relatively small (the voltage drop across resistor R1 is relatively large). Thus, the 12V power supply, after being divided by the humidity-sensitive resistor RS and resistor R2, and with resistor R2 reducing the voltage and limiting the current, enters the microcontroller module A3 at a relatively high voltage. When the humidity inside the steam chamber 1 is low, the resistance value of the humidity-sensitive resistor RS is relatively large (the voltage drop across resistor R1 is relatively small). Thus, the 12V power supply, after being divided by the humidity-sensitive resistor RS and resistor R1, and with resistor R2 reducing the voltage and limiting the current, enters the microcontroller module A3 at a relatively low voltage. Two analog temperature and humidity signals are input to the microcontroller module A3. Under the action of the internal circuit of the microcontroller module A3, they are converted (AD conversion) into digital signals and output to the signal input terminal of the WiFi data transmission module A4. The WiFi data transmission module A4 then transmits the digital signals wirelessly. Through existing mature Internet of Things technology, the WiFi data receiving module in the smartphone or PC next to the staff can receive the data transmitted by the WiFi data transmission module A4 (at a distance of about 300 meters) and can intuitively understand the temperature and humidity data inside the steam room body 1.

[0020] As shown in Figures 1 and 2, through the above technical solution, when a worker operates the power switch to close the electric roller shutter door of the steam room (its motor operates at DC 12V, and a 220V motor can also be used), and other workers remain in the steam room, the electric roller shutter door will automatically lose power and not close, preventing the chance of the remaining workers being harmed by steam. It can also wirelessly transmit real-time monitoring data on the temperature and humidity inside the steam room, allowing off-site workers to access the data in real time via smartphones or PCs and take necessary actions (such as addressing issues like low temperature or the steam generator not outputting steam). This provides convenience for workers and ensures the quality of processed cables. Furthermore, under extreme circumstances, water may accumulate at the lower end of the steam room body due to obstructed steam discharge channels (water accumulates at the lower end of the steam room body). The alarm will alert workers in real time to promptly clean and repair the affected area, again ensuring the quality of processed cables. In Figure 2, power module A1 is a finished product of AC 220V to DC 12V power module; alarm BW is a finished product of audible and visual alarm with a working voltage of DC 12V; resistors R1, R2, R3, and R4 have resistance values ​​of 4.7K, 2K, 4.7K, and 2K respectively; relay J1 is DC 12V; humidity sensor RS is HRL23; thermistor RT is a negative temperature coefficient thermistor of model NTC103D; pyroelectric detection module A2 is a finished product of human infrared sensing electronic module of model HC-SR501, which has two power supplies. The device has one input terminal and one signal output terminal. When the probe detects a human body signal, its signal output terminal outputs power; otherwise, it does not output power. Its maximum detection range is 7 meters. The housing of the human body infrared sensing electronic module has an adjustment knob. Adjusting it to the left increases the detection distance, and adjusting it to the right decreases the detection distance. In this real-time example, it is adjusted to about 5 meters. The microcontroller module A3 is an STM32F103ZET6 microcontroller module. The WiFi data transmission module A4 is a VM300-L. The liquid level probe W is a SJ07A10 water immersion sensor. It should be noted that the microcontroller module converts the input dynamically changing analog voltage signal (such as the pressure voltage signal output by a water pressure sensor) into a digital signal and outputs it to the WiFi data transmission module. The WiFi data transmission module then sends the digital signal data, and the WiFi data receiving module in the mobile phone or PC receives the data and displays it on the screen. This is an existing, highly mature IoT data acquisition, AD conversion, wireless digital transmission and reception, and display technology. This application does not protect the above-mentioned technical points, nor does it elaborate on the specific working principle. This application protects the technical solution of the microcontroller module converting the input dynamically changing analog voltage signal of temperature and humidity into a digital signal and outputting it to the WiFi data transmission module. The WiFi data transmission module then sends the digital signal data, and the WiFi data receiving module in the mobile phone or PC receives the data and displays it on the screen (displaying temperature and humidity).

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0022] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steam room designed to prevent people from getting trapped, comprising a steam room body, a humidity probe, a temperature probe, a pyroelectric detection module, a WiFi data transmission module, and a microcontroller module, characterized in that, It also includes a humidity monitoring circuit, a temperature monitoring circuit, and a control relay; the humidity probe, temperature probe, and pyroelectric detection module are fixedly installed inside the outer casing, which is fixedly installed on the upper part of the steam chamber body; the WiFi data transmission module, microcontroller module, humidity monitoring circuit, temperature monitoring circuit, and control relay are installed in a component box, which is fixedly installed on the outside of the steam chamber body; the signal output terminals of the humidity monitoring circuit and temperature monitoring circuit are electrically connected to the two signal input terminals of the microcontroller module, the signal output terminal of the microcontroller module is electrically connected to the signal input terminal of the WiFi data transmission module, and the power output terminal of the relay is electrically connected to the power input terminal of the electric roller shutter door of the steam chamber body via a power switch in series; the power output terminal of the pyroelectric detection module is electrically connected to the power input terminal of the relay, and the wiring terminals of the humidity probe and temperature probe are electrically connected in series between the two signal terminals of the humidity monitoring circuit and the temperature monitoring circuit, respectively.

2. The anti-trapped steam room according to claim 1, characterized in that, The detection surfaces of the humidity probe, temperature probe, and pyroelectric detection module are located at the upper part of the steam chamber body.

3. The anti-trapped steam room according to claim 1, characterized in that, The humidity monitoring circuit and the temperature monitoring circuit have the same structure, both including two resistors connected by circuit board wiring, with one end of the two resistors connected together.

4. A steam room for preventing people from getting trapped, as described in claim 1, characterized in that, The lower part of the steam chamber body has an installation groove, in which a liquid level probe is fixedly installed. The probe rod is located at the upper part of the installation groove.

5. A steam room for preventing people from getting trapped, as described in claim 4, characterized in that, The level probe is installed in the component box with an alarm. The power output terminal of the level probe is electrically connected to the power input terminal of the alarm.

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