Pentane application system and control method

Abstract

The present application relates to the technical field of pentane application, and particularly relates to a pentane application system and a control method, which comprises a pentane storage tank used for storing liquid pentane, a liquid supply assembly in communication with the pentane storage tank, a gasifier in communication with the liquid supply assembly, the liquid supply assembly being capable of conveying the liquid pentane in the pentane storage tank into the gasifier, and a heating assembly comprising a heating medium inlet pipeline and a heating medium outlet pipeline in communication with each other, the heating medium inlet pipeline and the heating medium outlet pipeline being both arranged on the gasifier, a pressure sensor arranged on the gasifier and electrically connected with the electric control throttle valve. The present application can ensure the continuity of production, thereby ensuring the cutting efficiency and improving the safety of pentane gasification.

Description

Technical Field

[0001] This invention relates to the field of pentane application technology, and more particularly to a pentane application system and control method. Background Technology

[0002] Pentane is a high-calorific-value and relatively inexpensive refining byproduct. Some companies are now exploring its application in cutting thick steel plates, using it as a substitute for natural gas or acetylene. The current common practice is to store pentane in small vaporization tanks, connected to the cutting torch's fuel inlet. On one hand, the negative pressure effect created by high-pressure oxygen flowing through the torch lowers the vaporization temperature of the pentane. On the other hand, an electric heating device within the vaporization tank heats the pentane. Together, these two processes ensure a continuous supply of vaporized pentane through vaporization.

[0003] Small vaporization tanks have limited capacity and require frequent trips to filling stations to refill with liquid pentane, which is detrimental to continuous production and reduces cutting efficiency and quality. Furthermore, since pentane is flammable and explosive, using electric heating to vaporize it poses a safety risk.

[0004] Therefore, a pentane application system and control method are needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a pentane application system and control method that can ensure the continuity of production, thereby ensuring cutting efficiency and improving the safety of pentane gasification.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Pentane application systems include:

[0008] A pentane storage tank, wherein the pentane storage tank is used to store liquid pentane;

[0009] A liquid supply assembly, which is connected to the pentane storage tank;

[0010] A vaporizer, which is connected to the liquid supply assembly, which is capable of supplying liquid pentane from the pentane storage tank to the vaporizer;

[0011] The heating assembly includes a heating medium inlet pipe and a heating medium outlet pipe that are interconnected. Both the heating medium inlet pipe and the heating medium outlet pipe are installed on the vaporizer and are used to heat the vaporizer by the heating medium. An electrically controlled throttle valve is installed on the heating medium inlet pipe.

[0012] A pressure sensor is disposed on the vaporizer and is electrically connected to the electronically controlled throttle valve. The pressure sensor can control the opening degree of the electronically controlled throttle valve according to the pressure of the gas in the vaporizer.

[0013] Furthermore, the liquid supply assembly includes a gas supply switch valve and a pump that are interconnected, the gas supply switch valve being connected to the pentane storage tank and the pump being connected to the vaporizer.

[0014] Furthermore, an intake switch valve and an intake electronic control switch valve are provided between the pump and the vaporizer, the intake switch valve being connected to the pump and the intake electronic control switch valve being connected to the vaporizer.

[0015] Furthermore, a first check valve is provided between the intake switch valve and the pump, the inlet of the first check valve being connected to the pump, and the outlet of the first check valve being connected to the intake switch valve.

[0016] Furthermore, it also includes an exhaust gas purging device, which includes an exhaust gas purging assembly and an exhaust gas recovery pipeline. The exhaust gas purging assembly is connected to the vaporizer, one end of the exhaust gas recovery pipeline is connected to the vaporizer, and the other end of the exhaust gas recovery pipeline is connected to the pentane storage tank.

[0017] Furthermore, the exhaust gas purging assembly includes a nitrogen storage tank, a purging switch valve, and a purging electrically controlled switch valve connected in sequence, and the purging electrically controlled switch valve is connected to the gasifier.

[0018] Furthermore, the waste gas recovery pipeline is equipped with a recovery electrically controlled switch valve and a second check valve. The recovery electrically controlled switch valve is connected to the gasifier, the inlet of the second check valve is connected to the recovery electrically controlled switch valve, and the outlet of the second check valve is connected to the pentane storage tank.

[0019] Furthermore, the pentane storage tank is equipped with a safety valve, an exhaust electrical control valve, and a level gauge.

[0020] Furthermore, the pentane storage tank is equipped with a filling pipe, and the filling pipe is equipped with a filling switch valve.

[0021] A control method for controlling the pentane application system as described above includes the following steps:

[0022] S1. Turn off the vaporizer;

[0023] S2. Start the liquid supply assembly, which charges the vaporizer with liquid pentane from the pentane storage tank;

[0024] S3. Start the heating component. The heating medium enters the pipeline to heat the vaporizer, causing the liquid pentane to vaporize.

[0025] S4. The pressure sensor monitors the gas pressure in the vaporizer in real time. When the gas pressure reaches the set value, the vaporizer opens to supply gas. When the gas pressure is less than the set value, the pressure sensor controls the opening of the electronically controlled throttle valve to increase to accelerate the vaporization of liquid pentane. When the gas pressure exceeds the set value, the pressure sensor controls the opening of the electronically controlled throttle valve to decrease to slow down the vaporization of liquid pentane.

[0026] The beneficial effects of this invention are:

[0027] This invention provides a pentane application system that utilizes a pentane storage tank to store a large quantity of liquid pentane, ensuring a sufficient supply. A liquid supply component is connected to the pentane storage tank and the vaporizer, supplying liquid pentane to the vaporizer. The vaporizer is equipped with a heating medium inlet pipe and a heating medium outlet pipe to heat the vaporizer, enabling the liquid pentane to vaporize. A pressure sensor detects the gas pressure in the vaporizer and controls the opening of an electrically controlled throttle valve on the heating medium inlet pipe based on the gas pressure, thereby regulating the gas pressure in the vaporizer. By employing a circulating heating medium inlet and outlet pipe, heat exchange occurs between the heating medium and the vaporizer, effectively heating the vaporizer and avoiding the use of electric heating. Furthermore, the pressure sensor and the electrically controlled throttle valve work together to ensure the safety of pentane vaporization and eliminate potential safety hazards. The use of a pentane storage tank to store a large quantity of liquid pentane, which is directly supplied to the vaporizer through the liquid supply component, ensures continuous production and maintains cutting efficiency.

[0028] The present invention provides a control method for controlling the pentane application system described above, which can ensure the continuity of production, thereby ensuring cutting efficiency and improving the safety of pentane gasification. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a pentane application system according to the present invention.

[0030] In the picture:

[0031] 1. Pentane storage tank; 11. Safety valve; 12. Level gauge; 13. Exhaust solenoid valve; 14. Filling valve; 2. Liquid supply assembly; 21. Gas supply valve; 22. Pump; 23. First check valve; 3. Vaporizer; 31. Inlet valve; 32. Inlet solenoid valve; 33. Shut-off valve; 34. Pressure sensor; 4. Heating assembly; 41. Heating medium inlet pipeline; 411. Solenoid valve. Valve; 412, First switching valve; 42, Heating medium discharge pipeline; 421, Second switching valve; 5, Exhaust gas purging assembly; 51, Nitrogen storage tank; 52, Purging switching valve; 53, Purging electrically controlled switching valve; 6, Exhaust gas recovery pipeline; 61, Recovery electrically controlled switching valve; 62, Second check valve; 7, Cutting torch; 8, Gas replenishment pipeline; 81, Gas replenishment switching valve; 82, Gas replenishment electrically controlled switching valve; 83, Third check valve. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the process of cutting steel plates using pentane, in order to ensure production continuity, thereby guaranteeing cutting efficiency, and to improve the safety of pentane vaporization, such as... Figure 1As shown, the present invention provides a pentane application system. The pentane application system includes a pentane storage tank 1, a liquid supply assembly 2, a vaporizer 3, a heating assembly 4, and a pressure sensor 34.

[0036] The system includes a pentane storage tank 1 for storing liquid pentane; a liquid supply assembly 2 connected to the pentane storage tank 1; and a vaporizer 3 connected to the liquid supply assembly 2, which delivers the liquid pentane from the pentane storage tank 1 to the vaporizer 3. The heating assembly 4 includes a heating medium inlet pipe 41 and a heating medium outlet pipe 42 connected to each other. Both the heating medium inlet pipe 41 and the heating medium outlet pipe 42 are installed on the vaporizer 3. The heating medium heats the vaporizer 3 through heat exchange. An electrically controlled throttle valve 411 is installed on the heating medium inlet pipe 41. A pressure sensor 34 is installed on the vaporizer 3 and electrically connected to the electrically controlled throttle valve 411. The pressure sensor 34 controls the opening of the electrically controlled throttle valve 411 based on the pressure of the gas in the vaporizer 3.

[0037] By using a heating medium inlet pipe 41 and a heating medium outlet pipe 42, heat exchange is carried out between the circulating heating medium and the vaporizer 3, thereby effectively heating the vaporizer 3 and avoiding the use of electric heating to heat the vaporizer 3. Moreover, the safety of pentane vaporization is ensured and safety hazards are eliminated by using a pressure sensor 34 in conjunction with an electrically controlled throttle valve 411. A large amount of liquid pentane is stored in a pentane storage tank 1, and the vaporizer 3 is directly supplied with liquid through the liquid supply component 2, which can ensure the continuity of production and thus ensure cutting efficiency.

[0038] Furthermore, the liquid supply assembly 2 includes a gas supply switch valve 21 and a pump 22 that are interconnected. The gas supply switch valve 21 is connected to the pentane storage tank 1, and the pump 22 is connected to the vaporizer 3. By setting the gas supply switch valve 21, the gas supply switch valve 21 can be opened when needed and closed after use, ensuring the safety of the gas supply. By using the pump 22 to supply liquid pentane to the vaporizer 3, a continuous flow of liquid pentane can be ensured into the vaporizer 3.

[0039] Furthermore, an inlet switch valve 31 and an inlet electrically controlled switch valve 32 are interconnected between the pump 22 and the vaporizer 3. The inlet switch valve 31 is connected to the pump 22, and the inlet electrically controlled switch valve 32 is connected to the vaporizer 3. When using pentane gas, the inlet switch valve 31 is normally open, and the inlet electrically controlled switch valve 32 is opened or closed as needed. When the inlet electrically controlled switch valve 32 malfunctions or requires maintenance, maintenance personnel can manually close the inlet switch valve 31.

[0040] Furthermore, a first check valve 23 is provided between the intake switch valve 31 and the pump 22. The inlet of the first check valve 23 is connected to the pump 22, and the outlet of the first check valve 23 is connected to the intake switch valve 31. By setting the first check valve 23, the liquid pentane in the pentane storage tank 1 is ensured to flow unidirectionally to the vaporizer 3 without backflow, thereby ensuring the pentane supply.

[0041] Furthermore, the pentane application system also includes an exhaust gas purging device, which comprises an exhaust gas purging assembly 5 and an exhaust gas recovery pipeline 6. The exhaust gas purging assembly 5 is connected to the vaporizer 3, and one end of the exhaust gas recovery pipeline 6 is connected to the vaporizer 3, while the other end of the exhaust gas recovery pipeline 6 is connected to the pentane storage tank 1. When the pentane application system is not in operation for an extended period or requires maintenance, the exhaust gas purging assembly 5 and the exhaust gas recovery pipeline 6 are opened to purge the pentane from the vaporizer 3 and the pipeline into the pentane storage tank 1 for recovery.

[0042] Furthermore, the exhaust gas purging assembly 5 includes a nitrogen storage tank 51, a purging switch valve 52, and a purging electrically controlled switch valve 53 connected in sequence. The purging electrically controlled switch valve 53 is connected to the vaporizer 3. Specifically, the nitrogen storage tank 51 stores high-pressure nitrogen. When exhaust gas purging is required, the purging switch valve 52 and the purging electrically controlled switch valve 53 are opened, allowing high-pressure nitrogen to be purged into the vaporizer 3 and recovered through the exhaust gas recovery pipeline 6. Since nitrogen is an inert gas, it can prevent safety accidents during subsequent maintenance.

[0043] Furthermore, the waste gas recovery pipeline 6 is equipped with a recovery electrically controlled switch valve 61 and a second check valve 62. The recovery electrically controlled switch valve 61 is connected to the vaporizer 3, the inlet of the second check valve 62 is connected to the recovery electrically controlled switch valve 61, and the outlet of the second check valve 62 is connected to the pentane storage tank 1. During recovery, the recovery electrically controlled switch valve 61 is opened, and nitrogen gas pushes the pentane remaining in the vaporizer 3 through the recovery electrically controlled switch valve 61 and the second check valve 62 into the pentane storage tank 1 for recovery. By setting the recovery electrically controlled switch valve 61 and the second check valve 62, it is possible to prevent the pentane in the vaporizer 3 from flowing back into the pentane storage tank 1 through the waste gas recovery pipeline 6.

[0044] Furthermore, during the process of pumping pentane liquid into the vaporizer, in order to ensure stable gas pressure in the pentane storage tank, a make-up gas pipeline 8 is installed between the pentane storage tank and the nitrogen storage tank 51. One end of the make-up gas pipeline 8 is connected to the pentane storage tank 1, and the other end is connected to the nitrogen storage tank 51. A make-up gas switch valve 81, a make-up gas electrically controlled switch valve 82, and a third check valve 83 are installed on the make-up gas pipeline 8. The make-up gas switch valve 81 is normally open. Simultaneously with the pumping of pentane liquid into the vaporizer 3, the make-up gas electrically controlled switch valve 82 is opened, allowing nitrogen to enter the pentane storage tank 1 unidirectionally through the nitrogen storage tank 51. This maintains stable gas pressure in the pentane storage tank 1, facilitating the smooth pumping out of the pentane liquid, and also utilizes the inertness of nitrogen to protect the pentane storage tank 1.

[0045] Furthermore, the pentane storage tank 1 is equipped with a safety valve 11, an exhaust electrical control valve 13, and a level gauge 12. When the pressure in the pentane storage tank 1 exceeds the set pressure, the safety valve 11 automatically opens to release gas, thereby reducing the pressure and ensuring the safety of the pentane storage tank 1. The exhaust electrical control valve 13 allows gas in the pentane storage tank 1 to be discharged when needed. The level gauge 12 displays the amount of pentane in the pentane storage tank 1 in real time, allowing personnel to monitor the situation promptly and replenish the pentane when it is insufficient.

[0046] Furthermore, a filling pipe is fixedly installed on the pentane storage tank 1, and a filling switch valve 14 is installed on the filling pipe. The above configuration facilitates the filling of pentane.

[0047] Furthermore, a first switching valve 412 is provided on the heating medium inlet pipe 41, and a second switching valve 421 is provided on the heating medium outlet pipe 42. By controlling the opening and closing of the first switching valve 412 and the second switching valve 421, the flow of the heating medium can be controlled.

[0048] Furthermore, multiple vaporizers 3 can be arranged at intervals according to the size of the workshop and actual needs, and all multiple vaporizers 3 are connected to the liquid supply assembly 2. By setting multiple vaporizers 3, the usage needs of multiple workstations can be met.

[0049] Furthermore, a shut-off valve 33 is installed at the gas outlet of the vaporizer 3. The shut-off valve 33 is connected to the cutting torch 7 via an electrically heated thermostatic hose. When in use, the oxygen hose is connected to the cutting torch 7 at the same time. After the cutting torch 7 is turned on, the steel plate can be cut.

[0050] This embodiment also provides a control method for controlling the above-mentioned pentane application system, including the following steps:

[0051] S1. Turn off vaporizer 3;

[0052] S2. Start the liquid supply component 2. The liquid supply component 2 will charge the liquid pentane in the pentane storage tank 1 into the vaporizer 3.

[0053] S3. Start the heating component 4. The heating medium enters the pipeline 41 to heat the vaporizer 3, so that the liquid pentane is vaporized.

[0054] S4. Pressure sensor 34 monitors the gas pressure in vaporizer 3 in real time. When the gas pressure reaches the set value, vaporizer 3 opens to supply gas. When the gas pressure is less than the set value, pressure sensor 34 controls the opening of the electronically controlled throttle valve 411 to increase to accelerate the vaporization of liquid pentane. When the gas pressure exceeds the set value, pressure sensor 34 controls the opening of the electronically controlled throttle valve 411 to decrease to slow down the vaporization of liquid pentane.

[0055] Specifically, after the cutting torch 7 performs cutting, the gas pressure in the vaporizer 3 will decrease. At this time, the opening of the electrically controlled throttle valve 411 increases, increasing the flow of heat exchange medium into the vaporizer 3 and accelerating the vaporization rate of pentane. This ensures that the pentane gas pressure in the vaporizer 3 remains constant. When the pentane level in the vaporizer 3 drops to the set value, the liquid supply component 2 will automatically add liquid pentane to it.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pentane application system, characterized in that, include: Pentane storage tank (1), said pentane storage tank (1) is used to store liquid pentane; Liquid supply assembly (2), which is connected to the pentane storage tank (1); A vaporizer (3) is connected to the liquid supply assembly (2). The liquid supply assembly (2) can transport liquid pentane from the pentane storage tank (1) to the vaporizer (3). A shut-off valve (33) is provided at the outlet of the vaporizer (3). The shut-off valve (33) is connected to the cutting torch (7) through an electrically heated constant temperature hose. The heating assembly (4) includes a heating medium inlet pipe (41) and a heating medium outlet pipe (42) that are connected to each other. Both the heating medium inlet pipe (41) and the heating medium outlet pipe (42) are installed on the vaporizer (3) for heating the vaporizer (3) by heating medium. An electrically controlled throttle valve (411) is installed on the heating medium inlet pipe (41). A pressure sensor (34) is installed on the vaporizer (3) and is electrically connected to the electronically controlled throttle valve (411). The pressure sensor (34) can control the opening of the electronically controlled throttle valve (411) according to the pressure of the gas in the vaporizer (3).

2. The pentane application system according to claim 1, characterized in that, The liquid supply assembly (2) includes a gas supply switch valve (21) and a pump (22) that are connected to each other. The gas supply switch valve (21) is connected to the pentane storage tank (1), and the pump (22) is connected to the vaporizer (3).

3. The pentane application system according to claim 2, characterized in that, An intake switch valve (31) and an intake electronic control switch valve (32) are provided between the pump (22) and the vaporizer (3), which are interconnected. The intake switch valve (31) is connected to the pump (22), and the intake electronic control switch valve (32) is connected to the vaporizer (3).

4. The pentane application system according to claim 3, characterized in that, A first check valve (23) is provided between the intake switch valve (31) and the pump (22). The inlet of the first check valve (23) is connected to the pump (22), and the outlet of the first check valve (23) is connected to the intake switch valve (31).

5. The pentane application system according to claim 1, characterized in that, It also includes an exhaust gas purging device, which includes an exhaust gas purging assembly (5) and an exhaust gas recovery pipeline (6). The exhaust gas purging assembly (5) is connected to the gasifier (3), one end of the exhaust gas recovery pipeline (6) is connected to the gasifier (3), and the other end of the exhaust gas recovery pipeline (6) is connected to the pentane storage tank (1).

6. The pentane application system according to claim 5, characterized in that, The exhaust gas purging assembly (5) includes a nitrogen storage tank (51), a purging switch valve (52), and a purging electrically controlled switch valve (53) connected in sequence. The purging electrically controlled switch valve (53) is connected to the vaporizer (3).

7. The pentane application system according to claim 5, characterized in that, The waste gas recovery pipeline (6) is equipped with a recovery electronic control switch valve (61) and a second one-way valve (62). The recovery electronic control switch valve (61) is connected to the gasifier (3). The inlet of the second one-way valve (62) is connected to the recovery electronic control switch valve (61), and the outlet of the second one-way valve (62) is connected to the pentane storage tank (1).

8. The pentane application system according to claim 1, characterized in that, The pentane storage tank (1) is equipped with a safety valve (11), an exhaust electrical control switch valve (13), and a level gauge (12).

9. The pentane application system according to claim 1, characterized in that, The pentane storage tank (1) is equipped with a filling pipe, and the filling pipe is equipped with a filling switch valve (14).

10. A control method, characterized in that, For controlling the pentane application system as described in any one of claims 1-9, the method comprises the following steps: S1. Close the vaporizer (3); S2. Start the liquid supply assembly (2), which fills the vaporizer (3) with liquid pentane from the pentane storage tank (1); S3. Start the heating component (4), and the heating medium enters the pipeline (41) to heat the vaporizer (3), so that the liquid pentane is vaporized; S4. The pressure sensor (34) monitors the gas pressure in the vaporizer (3) in real time. When the gas pressure reaches the set value, the vaporizer (3) opens to supply gas. When the gas pressure is less than the set value, the pressure sensor (34) controls the opening of the electronically controlled throttle valve (411) to increase to accelerate the vaporization of liquid pentane. When the gas pressure exceeds the set value, the pressure sensor (34) controls the opening of the electronically controlled throttle valve (411) to decrease to slow down the vaporization of liquid pentane.

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