Cooling, drying and discharging device suitable for polyester monofilament production

Abstract

Disclosed in the present application is a cooling, drying and discharging device suitable for polyester monofilament production. The cooling, drying and discharging device comprises a cold and heat source assembly, a cooling assembly and a drying assembly, wherein the cold and heat source assembly is respectively connected to the cooling assembly and the drying assembly by means of pipes, and respectively feeds a low-temperature gas flow and a high-temperature gas flow into the cooling assembly and the drying assembly; and the cold and heat source assembly is a vortex tube, and the vortex tube has a high-pressure gas inlet, a heat source output port and a cold source output port. By means of innovative design and intelligent control, the new cooling, drying and discharging device for polyester monofilament production not only improves the production efficiency and product quality, but also makes a contribution to environmental protection, thus providing an efficient, environmentally-friendly and intelligent solution.

Description

A cooling and drying discharging device suitable for polyester monofilament production Technical Field

[0001] The present application relates to a discharging device, in particular to a cooling and drying discharging device suitable for the production of polyester monofilaments. Background Art

[0002] Polyester monofilament, a high-performance synthetic fiber with excellent physical and chemical properties, is widely used in textile, industrial, and other fields. Its key characteristics include high strength, good abrasion resistance, and corrosion resistance. The manufacturing process for polyester monofilament involves melting the polyester polymer and extruding it through fine orifices to form a slender, thread-like structure. After cooling and solidification, these monofilaments exhibit excellent tensile strength and elasticity, making them a preferred material for many applications.

[0003] In the existing polyester monofilament production field, the monofilament production process usually includes melt extrusion and subsequent cooling and fixing steps. The current cooling method mainly relies on cold water tanks, which has significant limitations and shortcomings. First, the cold water tank needs to be regularly injected with fresh cold water, which not only increases the consumption of water resources, but also brings operational inconvenience. Secondly, the contact between cold water and polyester monofilament may cause water resource pollution. This is because polyester monofilament may release odorous substances when it comes into contact with water. These substances will dissolve in water and cause water quality problems. In addition, although some equipment uses a cold water recycling system, its cooling efficiency is not ideal, which further reduces production efficiency and product quality.

[0004] After cooling, polyester monofilaments typically contain moisture and require further drying. However, existing production equipment often lacks integrated drying capabilities, requiring additional drying equipment on the production line, increasing production costs and operational complexity. These shortcomings highlight the urgent need for improvements in existing technologies to improve production efficiency, reduce costs, and minimize environmental impact.

[0005] In summary, the development of a new cooling and drying discharging device is of great significance to this field.

[0006] Summary of the Invention

[0007] The purpose of this application is to overcome at least one of the shortcomings of the prior art and to provide a cooling and drying discharging device suitable for the production of polyester monofilaments. The device has the functions of active cooling and active drying, can provide constant temperature cooling water for polyester monofilaments and actively dry them, so as to achieve better use effect.

[0008] To achieve the above-mentioned purpose, the present application discloses a cooling and drying discharging device suitable for the production of polyester monofilament, comprising a cold and hot source component, a cooling component, and a drying component. The cold and hot source components are connected to the cooling component and the drying component through pipelines, respectively, and low-temperature airflow and high-temperature airflow are respectively sent to the cooling component and the drying component; the polyester monofilament passes through the cooling component and the drying component in succession, is cooled and shaped, and then is dried by the hot airflow; the cold and hot source component is a vortex tube, which has a high-pressure air inlet and a heat source output port and a cold source output port, the high-pressure air inlet is connected to a high-pressure air inlet pipe with an electric control valve, and the high-pressure air inlet pipe inputs a controllable flow of high-pressure airflow into the vortex tube; the cold source output port is connected to the cooling component through an insulated pipe, and the heat source output port is connected to the drying component through an insulated pipe; the drying component is also connected to the cooling component through a pipeline, and the exhaust gas sent into the drying component is dehydrated and deodorized and filtered through the cooling component and then discharged into the environment.

[0009] Furthermore, the cooling assembly includes a liquid storage tank, a condensation and water removal tank, a cooling box, an air-liquid heat exchanger located in the liquid storage tank, a cooling pipe connected to the liquid storage tank and located in the cooling box, and a condensation plate located in the condensation and water removal tank; the liquid storage tank sends cooling water into the cooling pipe, which is used for polyester monofilament to pass through and cool the polyester monofilament, and the cooled water falls into the cooling box; the liquid storage tank uses a circulation pump to send the water in the cooling box back to the liquid storage tank to realize liquid circulation; the condensation plate has a heat exchange flow channel; the low-temperature airflow sent out by the vortex tube first passes through the air-liquid heat exchanger and then enters the heat exchange flow channel in the condensation plate before being sent out; the condensation and water removal tank has an air inlet and an exhaust port, and an activated carbon filter for deodorization is installed at the exhaust port.

[0010] Furthermore, an ozone generator is installed in the condensation and water removal tank. The ozone generator is controlled to produce ozone, reduce odorous substances and harmful substances in the gas, and further reduce the impact of odor and harmful substances on the environment.

[0011] Furthermore, the gas-liquid heat exchanger has a plurality of heat exchange branch pipes in an array, each heat exchange branch pipe exchanges heat with the cooling water in the liquid storage tank, thereby reducing the temperature of the cooling water that has risen due to absorbing heat from the polyester monofilament.

[0012] Furthermore, a water collecting tank is provided at the bottom of the condensation dewatering tank, which is connected to the liquid storage tank through a pipeline with a pump to transport condensed water to the liquid storage tank, further reducing the water replenishment cycle of the liquid storage tank.

[0013] Furthermore, the drying component includes a drying box, a drying tube located in the drying box and used for drying and dehydrating polyester monofilaments, and a mixing chamber connected to the drying tube and the cold and hot source components and used for temperature control of the mixed gas; the wall of the drying tube has a hollow interlayer, and the hollow interlayer is provided with a plurality of micro exhaust holes facing the drying tube; the hollow interlayer is connected to the mixing chamber through a pipeline, and a hot air flow with a certain temperature is evenly fed into the drying tube, and the hot air flow is evenly fed into the drying tube through the micro exhaust holes; the mixing chamber is connected to the heat source output port and the high-pressure air inlet pipe respectively through pipelines; an electric control valve is installed on the connecting pipeline between the high-pressure air inlet pipe and the mixing chamber; the drying box is connected to the condensation and water removal tank in the cooling component through a pipeline.

[0014] Furthermore, this cooling and drying discharging device suitable for polyester monofilament production also includes a control component, a liquid temperature sensor and a liquid level sensor located in the liquid storage tank and connected to the control component, and a gas temperature sensor located in the gas mixing chamber and connected to the control component; the control component is connected to each electronically controlled valve to control the operation of each electronically controlled valve.

[0015] Compared with the prior art, this application has at least one of the following beneficial effects:

[0016] 1. Efficient energy utilization and environmental friendliness: The core component of this device is the vortex tube, which effectively separates the high-pressure airflow into hot and cold ends, respectively used for cooling and drying. This separation method not only improves energy efficiency but also reduces dependence on external cooling or heat sources, thereby reducing energy consumption. In addition, by recycling cooling water and exhaust gas treatment systems, the impact on the environment is reduced, making the entire production process more environmentally friendly.

[0017] 2. Improved production efficiency and product quality: The precision-engineered cooling and drying components within the unit ensure rapid and uniform cooling and drying of the polyester monofilament during production. In particular, the hollow interlayer design and micro-vents within the drying component evenly distribute the hot air flow within the drying tube, effectively improving drying efficiency. This rapid and uniform process not only improves the overall efficiency of the production line, but also ensures the quality and performance stability of the polyester monofilament.

[0018] 3. Intelligent Control and Ease of Operation: The device integrates control components and various sensors, such as liquid temperature sensors, liquid level sensors, and gas temperature sensors, along with electronically controlled valves, to achieve intelligent control of the entire production process. This automated control system not only reduces the workload of operators but also improves the accuracy and repeatability of the production process, ensuring stability and safety.

[0019] In summary, this new cooling and drying discharge device for polyester monofilament production not only improves production efficiency and product quality through its innovative design and intelligent control, but also contributes to environmental protection. It is an efficient, environmentally friendly and intelligent solution.

[0020] Other features and advantages of the subject technology of the present application will be set forth in the description that follows, and in part will be apparent from the description or may be learned by practicing the subject technology of the present application. The advantages of the subject technology of the present application will be realized and obtained through the structure particularly pointed out in the written description and claims and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] After reading the following detailed description in conjunction with the accompanying drawings, you will have a better understanding of various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges.

[0022] In the attached figure:

[0023] FIG1 is a schematic diagram of hardware connections of an embodiment disclosed in the present application;

[0024] FIG2 is a schematic structural diagram of a drying tube in an embodiment disclosed in the present application. DETAILED DESCRIPTION

[0025] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide many additional embodiments.

[0026] It should be understood that like reference numerals refer to like elements throughout the drawings. In the drawings, the dimensions of some features may be distorted for clarity.

[0027] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered part of the authorization specification.

[0028] The singular forms "a", "an", "said" and "the" used in the specification include the plural forms unless otherwise expressly stated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items. The terms "between X and Y" and "between approximately X and Y" used in the specification should be interpreted as including X and Y. The term "between approximately X and Y" used in this specification means "between approximately X and approximately Y", and the term "from about X to Y" used in this specification means "from about X to about Y".

[0029] In the specification, when an element is referred to as being "on," "attached," "connected," "coupled," or "in contact with" another element, the element may be directly on, attached, connected, coupled to, or in contact with another element, or there may be intervening elements. In contrast, when an element is referred to as being "directly" "on," "directly attached," "directly connected," "directly coupled," or "in direct contact with" another element, there may be no intervening elements. In the specification, when a feature is arranged "adjacent" to another feature, it may mean that the feature has a portion that overlaps with the adjacent feature or a portion that is located above or below the adjacent feature.

[0030] In the specification, spatial terms such as "upper," "lower," "left," "right," "front," "back," "higher," and "lower" may be used to describe the relationship of one feature to another feature in the accompanying drawings. It should be understood that these spatial terms encompass not only the orientation shown in the accompanying drawings, but also different orientations of the device during use or operation. For example, if the device in the accompanying drawings is turned over, a feature previously described as "below" other features may now be described as "above" the other features. The device may also be oriented in other ways (rotated 90 degrees or in other orientations), and the relative spatial relationships will be interpreted accordingly.

[0031] Example:

[0032] Figures 1 and 2 illustrate an exemplary structure of a cooling and drying discharge device suitable for polyester monofilament production. In this embodiment, the device comprises a cold and hot source assembly 1, a cooling assembly 2, a drying assembly 3, and a control assembly, which work together to achieve efficient cooling and drying of the polyester monofilament. In the cooling and drying discharge device for polyester monofilament production, the cold and hot source assembly 1 plays a crucial role. It comprises a vortex tube, a highly efficient heat separation device that separates the incoming high-pressure airflow into a cold and hot end. The vortex tube's structure is simple yet highly effective, primarily comprising a high-pressure air inlet, and cold and hot source outlets for outputting cold and hot air flows, respectively. This separation is achieved through the rotation and centrifugal force of the gas, causing the hot portion of the gas to move toward the outer wall while the cold portion is concentrated in the center. The high-pressure air inlet is connected to a high-pressure air inlet conduit 4 with an electrically controlled valve. This conduit precisely regulates the airflow rate and pressure entering the vortex tube, thereby affecting the temperature of the output airflow. Furthermore, insulated conduits extending from the cold and hot outlets of the vortex tube ensure that the airflow maintains a stable temperature during transport. In this way, the cold and heat source assembly 1 not only provides the necessary low-temperature and high-temperature airflow for the cooling and drying process, but also improves the energy efficiency and production efficiency of the overall system through precise temperature control and energy management.

[0033] As a more detailed description of this embodiment, in the cooling and drying discharging device for polyester monofilament production, the cooling assembly 2 mainly consists of a liquid storage tank 201, a cooling pipe 202, a gas-liquid heat exchanger 203, a condensation and water removal tank 204, a circulating pump 205, a cooling box 206, and related piping systems. The liquid storage tank 201 is used to store cooling water and monitors the water level via a liquid level sensor to ensure that the water level remains within the ideal range. The cooling pipe 202, typically arranged in a spiral or linear shape within the cooling box 206, is used to directly cool the molten extruded polyester monofilament passing through it. Its design maximizes the contact area with the monofilament to improve cooling efficiency. The gas-liquid heat exchanger 203 is located within the liquid storage tank 201 and reduces the temperature of the cooling water via a heat exchange branch, thereby effectively controlling the cooling process. The condensation and water removal tank 204 is installed at the end of the system and contains a condensation plate 207 and an activated carbon filter 208 to treat and purify the exhaust gas to ensure the cleanliness of the exhaust gas. A circulating pump and piping system transports water from cooling tank 206 back to liquid storage tank 201, achieving water recycling. This reduces resource consumption while maintaining efficient cooling system operation. The entire cooling assembly 2, in close collaboration with the control system, precisely monitors and regulates the entire cooling process, ensuring stable and efficient cooling of the polyester monofilament while also taking into account environmental protection and resource conservation.

[0034] As a more detailed description of this embodiment, in the cooling and drying discharge device for polyester monofilament production, the drying assembly 3 ensures that moisture is effectively removed from the polyester monofilament after cooling. This assembly includes a closed drying box 301, which is equipped with a specially designed drying tube 302. These tubes are uniquely designed with a hollow interlayer 303 and micro-vents 304, which can evenly feed the hot air flow into the tube, thereby achieving uniform drying of the polyester monofilament. The mixing chamber 305 is connected to the drying tube 302 and the cold and hot source assembly 1, and is responsible for mixing and regulating the temperature of the hot air flow entering the drying tube 302. An electrically controlled valve is installed on the pipeline connected to the high-pressure air inlet pipe 4, precisely controlling the flow rate and pressure of the mixing gas, thereby regulating the temperature of the hot air flow in the drying tube 302 and ensuring the consistency and efficiency of the drying effect. In addition, the drying assembly 3 is connected to the condensation and water removal tank 204 of the cooling assembly 2 via a pipeline, which effectively treats and recycles the exhaust gas generated during the drying process, reducing environmental impact. The entire drying process is precisely monitored by the control system to ensure the stability and efficiency of drying conditions, thereby guaranteeing the quality and production efficiency of polyester monofilament.

[0035] As a more specific description, in the cooling and drying discharging device for the production of polyester monofilaments, the drying tube 302 has a precise and efficient structural design, the key of which lies in the hollow interlayer 303 and micro exhaust holes 304. These pipes are usually made of high-temperature resistant and corrosion-resistant materials such as stainless steel, and have excellent thermal conductivity. The hollow interlayer 303 design not only improves the structural strength of the drying tube, but also creates an ideal hot air flow channel to ensure that the hot air flow can act evenly on the polyester monofilament. The micro exhaust holes 304 inside the drying tube 302 are evenly distributed, allowing the hot air flow to be precisely directed to the polyester monofilament to achieve uniform drying. Through the connection with the mixing chamber 305, the drying tube 302 can receive the temperature-controlled hot air flow, and further evenly transport it into the tube through the micro exhaust holes 304, thereby ensuring the uniformity and efficiency of the drying process.

[0036] As a more detailed description of this embodiment, in the cooling, drying, and discharging device for polyester monofilament production, the control component 5 is a highly integrated system responsible for monitoring and regulating the entire production process. At its core is a central control unit, typically composed of a microprocessor or computer system, which receives data from various sensors and makes appropriate regulatory decisions. A sensor network is installed at key locations throughout the device. For example, a liquid level sensor in the liquid storage tank monitors the water level to ensure an adequate cooling water supply; a gas temperature sensor installed in the mixing chamber monitors and adjusts the temperature of the hot air flow to ensure drying efficiency; and a humidity and temperature sensor installed in the drying box 301 monitors the drying environment of the polyester monofilament to ensure uniform and effective drying of the monofilament. Electronically controlled valves are installed in key piping systems, such as the high-pressure air inlet duct 4 of the vortex tube, to adjust air flow and pressure according to instructions from the central control unit. The control component 5 also includes a communication interface that allows for remote monitoring and adjustment. The microprocessor or computer system stores a control program for optimizing the cooling and drying processes.

[0037] It is understandable that, in order to ensure system safety, the control component 5 is also equipped with overload protection, an emergency stop button and a fault diagnosis system to ensure the safety and stability of the entire production process.

[0038] It should also be understood that the condensation and water removal tank 204 plays an important role and is specifically used to treat the exhaust gas discharged by the drying component 3. Its core component is the condensation plate 207, which is usually made of a material with high thermal conductivity and contains a heat exchange flow channel. These condensation plates 207 are connected to the air pipe in the gas-liquid heat exchanger 203 through pipes, and are actually connected to the cold air flow, using the cold air flow whose temperature is still low after heat exchange to perform low-temperature condensation. When the hot air flow passes through the condensation plate 207, the water vapor in the gas condenses into liquid water, thereby achieving a dehydration effect. A water collection tank is provided at the bottom of the condensation and water removal tank to collect the condensed water. The water is transported back to the liquid storage tank 201 through a pipe with a pump to reduce the system's water consumption. An activated carbon filter 208 is installed at the exhaust port to adsorb and remove odors and harmful substances in the treated air flow to ensure that the gas discharged into the environment is clean and harmless. In addition, to further optimize its functionality, some designs also include an ozone generator 209, which generates ozone under controlled conditions to oxidize and decompose harmful substances in the gas, thereby further reducing the impact on the environment. It should be noted that in practice, the condensation and water removal tank 204 is also connected to the control component 5 of the entire device and is equipped with sensors for monitoring the temperature, humidity, and water level in the tank to ensure efficient operation of the system. In summary, the device in this embodiment not only efficiently achieves the cooling and drying of polyester monofilaments, but also improves production efficiency and environmental sustainability through an intelligent control system and environmentally friendly design.

[0039] In principle, the cooling, drying, and discharging device for polyester monofilament production is a highly efficient and sophisticated system, based on the coordinated operation of carefully designed components. First, the molten, extruded polyester monofilament enters cooling assembly 2, where it is rapidly cooled by cooling water flowing through cooling tubes 202 supplied by a liquid storage tank 201. This cooling water is temperature-regulated by a gas-liquid heat exchanger 203 to maintain optimal cooling efficiency. The cooled polyester monofilament enters drying assembly 3, where a hollow interlayer 303 and micro-vents 304 are located within drying tubes 302 to evenly distribute the hot airflow for efficient drying.

[0040] The core of the cold and hot source assembly 1 is a vortex tube, which separates the airflow fed through the high-pressure air inlet into cold and hot streams, which are then supplied to cooling and drying assemblies 2 and 3, respectively. The cold airflow is used in the gas-liquid heat exchanger 203 of cooling assembly 2 to regulate the cooling water temperature; the hot airflow is conveyed to the mixing chamber 305 and then to the drying tube 302, where it evenly dries the polyester monofilaments.

[0041] The condensation and dewatering tank 204 processes the exhaust gas from the drying assembly 3. The condensation plate 207 inside the tank condenses the water vapor in the exhaust gas into liquid water, which is recovered in a sump and then passed through an activated carbon filter 208 to remove odors and harmful substances. The entire system is precisely managed by the control assembly 5. Sensors monitor key parameters such as temperature, humidity, and liquid level, and electronically controlled valves regulate air and water flows to ensure efficiency and product quality throughout the production process.

[0042] In summary, this device, through its efficient cooling, drying, exhaust gas treatment, and intelligent control system, not only improves the production efficiency and quality of polyester monofilament, but also takes into account environmental protection and resource conservation. Although exemplary embodiments of the present disclosure have been described, those skilled in the art will appreciate that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing substantially from the spirit and scope of the present disclosure. Therefore, all such changes and modifications are intended to be included within the scope of protection of the present disclosure as defined by the claims. The present disclosure is defined by the appended claims, and equivalents of those claims are intended to be included herewith.

Claims

1. A cooling, drying and discharging device applicable to the production of polyester monofilaments, characterized in that: it includes a cold and heat source component, a cooling component, and a drying component. The cold and heat source component is respectively connected to the cooling component and the drying component through pipelines, and sends low-temperature air flow and high-temperature air flow into the cooling component and the drying component respectively; the cold and heat source component is a vortex tube, which has a high-pressure air inlet, a heat source outlet and a cold source outlet. The high-pressure air inlet is connected to a high-pressure air pipe with an electric control valve, and the high-pressure air pipe inputs a controllable flow of high-pressure air into the vortex tube; the cold source outlet is connected to the cooling component through a heat-insulating pipeline, and the heat source outlet is connected to the drying component through a heat-insulating pipeline; the drying component is also connected to the cooling component through a pipeline, and the waste gas sent into the drying component is dewatered and deodorized and filtered through the cooling component.

2. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 1, characterized in that: the cooling component includes a liquid storage tank, a condensation and water removal tank, a cooling tank, a gas-liquid heat exchanger located in the liquid storage tank, a cooling pipe connected to the liquid storage tank and located in the cooling tank, and a condensation plate located in the condensation and water removal tank; the liquid storage tank sends cooling water into the cooling pipe, which is used for polyester monofilaments to pass through and cools the polyester monofilaments. The cooled water falls into the cooling tank; the liquid storage tank sends the water in the cooling tank back into the liquid storage tank through a circulation pump to realize liquid circulation; the condensation plate has a heat exchange flow channel inside; the low-temperature air flow sent out by the vortex tube first passes through the gas-liquid heat exchanger and then enters the heat exchange flow channel in the condensation plate and is sent out; the drying component includes a drying box, a drying pipe located in the drying box and used for drying and dewatering polyester monofilaments, and a gas mixing chamber connected and cooperated with the drying pipe and the cold and heat source component and used for adjusting the temperature of the mixed gas; an electric control valve is installed on the connecting pipeline between the high-pressure air pipe and the gas mixing chamber.

3. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: the wall surface of the drying pipe has a hollow interlayer, and a number of micro exhaust holes are arranged towards the inside of the drying pipe; the hollow interlayer is connected to the gas mixing chamber through a pipeline, and sends a hot air flow with a certain temperature into the drying pipe evenly, and the hot air flow is sent into the drying pipe evenly through the micro exhaust holes; the gas mixing chamber is connected to the heat source outlet and the high-pressure air pipe respectively through pipelines.

4. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: the condensation and water removal tank has an air inlet and an air outlet, and an activated carbon filter for deodorization is installed at the air outlet; the drying box is connected to the condensation and water removal tank in the cooling component through a pipeline.

5. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: the gas-liquid heat exchanger has a number of heat exchange branch pipes arranged in an array, and each heat exchange branch pipe exchanges heat with the cooling water in the liquid storage tank.

6. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: A water collecting tank is provided at the bottom of the condensation and water removal tank. The water collecting tank is connected to the liquid storage tank through a pipeline with a pump to convey the condensed water to the liquid storage tank.

7. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: An ozone generator is further installed in the condensation and water removal tank, and the ozone generator works under control to generate ozone.

8. A cooling, drying and discharging device applicable to the production of polyester monofilaments as described in claim 2, characterized in that: It further includes a control component, a liquid temperature sensor and a liquid level sensor located in the liquid storage tank and connected to the control component, and a gas temperature sensor located in the gas mixing chamber and connected to the control component; the control component is connected to each electric control valve to control the operation of each electric control valve.

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