Feeding device

Abstract

The utility model belongs to the technical field of chemical production equipment, and particularly relates to a feeding device. The utility model provides a feeding device. The feeding device comprises a nitrogen storage part, a ventilation pipeline, a tail gas collection part, a storage tank, a feeding pipe sleeve and a raw material tank, the nitrogen storage part is communicated with a breather pipe through a first valve, the breather pipe is communicated with a feeding pipe sleeve through a second valve, the two ends of the feeding pipe sleeve are communicated with a material storage tank and a raw material tank respectively, and the feeding pipe sleeve is provided with a third valve. According to the feeding device, through communication of the ventilation pipeline, the nitrogen storage part enters the storage tank through the feeding pipe sleeve, in the process that materials in the storage tank enter the raw material tank through the feeding pipe sleeve, nitrogen enters the top of the storage tank through the feeding pipe sleeve to replace air to form a nitrogen environment, under protection of nitrogen, air cannot be mixed in the feeding process, and the feeding efficiency is improved. The organic liquid raw material feeding device avoids burning explosion in the feeding process, and overcomes the technical defects that in the prior art, organic liquid raw materials are prone to burning explosion in the feeding process, and production safety is affected.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of chemical production equipment, and particularly relates to a feeding device. BACKGROUND

[0002] In chemical production, in order to realize automatic continuous production, liquid organic raw materials need to be fed from a storage tank to a raw material tank. In the feeding process, some flammable and explosive liquid organic raw materials are mixed with air when feeding, which is easy to form explosive mixed gas and cause safety accidents.

[0003] In the prior art, in order to ensure production safety, a diaphragm pump is used to directly suck raw materials. In the process of sucking raw materials, air enters the raw material tank to form explosive mixed gas. When the process of sucking raw materials is close to the end, air and raw materials enter the storage tank at the same time to form explosive mixed gas in the storage tank.

[0004] Therefore, it is urgent for those skilled in the art to develop a feeding device to solve the technical defects that flammable and explosive accidents easily occur in the feeding process of organic liquid raw materials and affect production safety. CONTENT OF THE INVENTION

[0005] Therefore, it is urgent for those skilled in the art to develop a feeding device to solve the technical defects that flammable and explosive accidents easily occur in the feeding process of organic liquid raw materials and affect production safety.

[0006] The application provides a safer feeding device, which comprises a nitrogen gas storage part, a ventilation pipe, a storage tank, a feeding pipe sleeve, a material pumping pump and a raw material tank.

[0007] The nitrogen gas storage part is communicated with the ventilation pipe through a first valve, the ventilation pipe is communicated with the feeding pipe through a second valve, both ends of the feeding pipe sleeve are communicated with the storage tank and the raw material tank respectively, the feeding pipe sleeve is provided with a third valve, and the storage tank is communicated with the tail gas collecting part.

[0008] In one of the embodiments, the feeding device further comprises a material pumping pump, which is arranged on the feeding pipe sleeve.

[0009] In one of the embodiments, the feeding device further comprises a pressure gauge, which is arranged on the feeding pipe sleeve and communicated with the storage tank.

[0010] In one of the embodiments, a safety valve is arranged on the feeding pipe sleeve and communicated with the storage tank.

[0011] In one of the embodiments, the feeding device further comprises a first pressure reducing valve, which is arranged between the first valve and the ventilation pipe.

[0012] In one of the embodiments, the feeding device further comprises a second pressure reducing valve, which is arranged between the second valve and the feeding pipe sleeve.

[0013] In one of the embodiments, the feeding device further comprises an exhaust pipe, which is in communication with the storage tank and the tail gas collecting part.

[0014] In one of the embodiments, the communication section of the exhaust pipe and the tail gas collecting part is provided with a fourth valve.

[0015] In one of the embodiments, the exhaust pipe is in communication with the pressure gauge.

[0016] In one of the embodiments, the communication section of the exhaust pipe and the pressure gauge is provided with a fifth valve.

[0017] In one of the embodiments, the material pumping pump is connected to an electrostatic ground.

[0018] In one of the embodiments, the raw material tank is connected to an electrostatic ground.

[0019] In summary, the present application provides a feeding device, which comprises a nitrogen storage part, a ventilation pipe, a storage tank, a feeding pipe sleeve, a tail gas collecting part and a raw material tank. The nitrogen storage part is in communication with the ventilation pipe through a first valve, the ventilation pipe is in communication with the feeding pipe sleeve through a second valve, the two ends of the feeding pipe sleeve are in communication with the storage tank and the raw material tank respectively, and the feeding pipe sleeve is provided with a third valve. In the technical solution provided by the present application, through the communication of the ventilation pipe, nitrogen enters the top of the storage tank through the feeding sleeve to replace air and form a nitrogen environment. Under the protection of nitrogen, air will not be mixed in the feeding process, and the technical defect that organic liquid raw material is prone to combustion and explosion during the feeding process and affects the production safety in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0021] Figure 1 In the technical solution provided by the embodiments of the present application, a structural schematic diagram of a feeding device is provided.

[0022] The nitrogen gas storage part 1, the first pressure reducing valve 2, the air vent pipeline 3, the second pressure reducing valve 4, the feed pipeline 5, the storage tank 6, the raw material tank 7, the third valve 8, the material pumping pump 9, the pressure gauge 10, the first valve 11, the second valve 12, the exhaust pipeline 13, the exhaust gas collection part 14, the fourth valve 15, the fifth valve 16, the material outlet 17 and the gas outlet 18 DETAILED DESCRIPTION

[0023] The embodiment of the present application provides a feeding device, which is used for solving the technical defects that organic liquid raw material is prone to combustion and explosion during feeding and affects production safety in the prior art.

[0024] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] Please see Figure 1 This application provides a feeding device, including: a nitrogen storage section 1, a ventilation pipe 3, a tail gas collection section 14, a storage tank 6, a feeding pipe sleeve 5, and a raw material tank 7. The nitrogen storage section 1 is connected to the ventilation pipe through a first valve 11, and the ventilation pipe is connected to the feeding pipe through a second valve 12. The two ends of the feeding pipe sleeve 5 are respectively connected to the storage tank 6 and the raw material tank 7. The feeding pipe sleeve 5 is equipped with a third valve 8, and the storage tank 6 is connected to the tail gas collection section 14. The feeding device provided by this application solves the technical defects in the prior art where organic liquid raw materials are prone to combustion and explosion during feeding, affecting production safety.

[0031] In the technical solution provided in this application embodiment, the two ends of the feed pipe sleeve 5 are connected to the storage tank 6 and the raw material tank 7 respectively, so as to feed and transfer the liquid material stored in the storage tank 6 to the raw material tank 7. In actual application, the storage tank 6 is provided with a discharge port 17, and the feed pipe sleeve 5 extends into the storage tank 6 through the discharge port 17.

[0032] After feeding is started, the third valve 8 of the feed pipe sleeve 5 is opened. After the third valve 8 is opened, the liquid material in the storage tank 6 enters the raw material tank 7 through the feed pipe sleeve 5, completing the feeding of the raw material tank 7. At the same time, the first valve 11 is opened, and the nitrogen in the nitrogen storage section 1 enters the ventilation pipe 3. The second valve 12 is opened, and the nitrogen in the ventilation pipe 3 enters the feed pipe sleeve 5 and mixes with the liquid material in the feed pipe sleeve 5 before entering the raw material tank 7.

[0033] Throughout the feeding process, the liquid materials in the feed pipe sleeve 5, storage tank 6, and raw material tank 7 are in a nitrogen atmosphere and there is no possibility of contact with air. Therefore, the problem of liquid material combustion and explosion caused by contact with air during the feeding process is effectively avoided, and production safety is effectively guaranteed.

[0034] It should be further noted that the nitrogen storage section 1 here can also be other inert gas storage sections, which can achieve the same technical effect. However, for cost considerations, it is set to nitrogen storage section 1 here.

[0035] To further optimize the technical solution and effectively improve the feeding efficiency of the feeding device, this application provides a feeding device that further includes a pump 9, which is installed in the feed pipe sleeve 5. The pump 9 accelerates the passage speed of materials and nitrogen in the feed pipe sleeve 5, effectively improving the feeding efficiency. Simultaneously, the efficiency of the pump 9 can be adjusted according to actual feeding speed requirements to meet various feeding speed needs.

[0036] To further improve the operational safety of the feeding device, the feeding device provided in this application embodiment further includes a pressure gauge 10, which is installed in the feed pipe sleeve 5. The pressure gauge 10 can provide real-time feedback on the pressure of the feed pipe sleeve 5. When the actual pressure of the pressure gauge 10 exceeds a preset safety threshold, the first valve 11, the second valve 12, and the third valve 8 can be closed in a timely manner, effectively ensuring production safety.

[0037] To further optimize the technical solution and effectively avoid overpressure explosions caused by excessive nitrogen gas, when abnormal pressure occurs in the feed pipe sleeve 5, the feed pipe sleeve 5 is equipped with a safety valve 19, which can be opened to promptly relieve pressure in the feed pipe sleeve 5.

[0038] To ensure that the nitrogen pressure entering the ventilation line 3 is stable and within a safe pressure range, the feeding device provided in this embodiment further includes a first pressure reducing valve 2, which is disposed between the first valve 11 and the ventilation line 3. The first pressure reducing valve 2 reduces the pressure of the nitrogen entering the ventilation line 3, further improving the operational safety of the feeding device.

[0039] Similarly, to further optimize the technical solution and ensure that the nitrogen gas pressure entering the feed pipe sleeve 5 via the venting pipe 3 is stable and within a safe pressure range, the feeding device provided in this embodiment of the application further includes: a second pressure reducing valve 4, which is disposed between the second valve 12 and the feed pipe sleeve 5. The second pressure reducing valve 4 further reduces the pressure of the nitrogen gas entering the feed pipe sleeve 5, preventing explosions caused by overpressure and effectively improving production safety.

[0040] The feeding device provided in this embodiment further includes an exhaust pipe 13, with both ends of the exhaust pipe 13 connected to a storage tank 6 and a tail gas collection section 14, respectively. The storage tank 6 is provided with an outlet 18, and the exhaust pipe 13 extends into the storage tank 6 through the outlet 18 to guide excess gas in the storage tank 6 to the tail gas collection section 14. This prevents explosions caused by overpressure in the storage tank 6. Simultaneously, the tail gas collection section 14 collects and processes the excess gas, effectively preventing pollution and explosion hazards caused by materials mixed in the tail gas.

[0041] In the technical solution provided in this application embodiment, a fourth valve 15 is provided at the connection section between the exhaust pipe 13 and the exhaust gas collection section 14. By opening / closing the fourth valve 15, excess exhaust gas is discharged, preventing waste of liquid material in the storage tank 6 caused by keeping the exhaust pipe 13 open.

[0042] To further optimize the technical solution, in a feeding device provided in this embodiment, the exhaust pipe 13 is connected to the pressure gauge 10. The pressure gauge 10 can also monitor the pressure in the exhaust pipe 13, further ensuring production safety.

[0043] To prevent pressure changes in the exhaust pipe 13 from affecting the accuracy of pressure monitoring of the feed pipe sleeve 5 by the pressure gauge 10, the technical solution provided in this application embodiment includes a fifth valve 16 at the connection section between the exhaust pipe 13 and the pressure gauge 10. The fifth valve 16 remains closed to ensure the accuracy of pressure monitoring of the feed pipe sleeve 5 by the pressure gauge 10. When the exhaust pipe 13 discharges exhaust gas, the fifth valve 16 is opened according to actual needs to monitor the gas pressure in the exhaust pipe 13.

[0044] To further ensure production safety, in the technical solution provided in this application embodiment, the feeding pump 9 is connected to an electrostatic grounding device. The electrostatic grounding device discharges static electricity generated during the operation of the feeding device in real time, preventing potential combustion or explosion due to static electricity accumulation.

[0045] Similarly, in the technical solution provided in the embodiments of this application, the raw material tank 7 is connected to an electrostatic grounding device.

[0046] From the above technical solutions, it can be concluded that the feeding device provided in this application embodiment has the following advantages:

[0047] First, the entire feeding process of the feeding device is carried out under a sealed protection state of nitrogen atmosphere, which effectively reduces the possibility of generating explosive gas mixtures.

[0048] Secondly, the entire feeding device system is effectively sealed, preventing the discharge of gas or liquid, thus improving on-site safety and environmental protection standards.

[0049] Third, it is equipped with an electrostatic grounding device, which can discharge static electricity in a timely manner and reduce the probability of fire and explosion.

[0050] Fourth, the dual pressure reduction mechanism of the first and second pressure reducing valves ensures that the slight positive pressure inside the feeding device remains stable and does not exceed the pressure limit, thus preventing malfunctions.

[0051] Fifth, a safety valve is installed as the last line of defense to further ensure that the feeding device does not experience overpressure, explosion, or leakage.

[0052] In summary, this application provides a feeding device, comprising: a nitrogen storage section, a venting pipeline, a storage tank, a feeding pipe sleeve, and a raw material tank; the nitrogen storage section is connected to the venting pipeline via a first valve, the venting pipeline is connected to the storage tank via a second valve, the two ends of the feeding pipe sleeve are respectively connected to the storage tank and the raw material tank, and the feeding pipe sleeve is equipped with a third valve. In the technical solution provided by this application, through the connection of the venting pipeline, nitrogen enters the top of the storage tank through the feeding pipe to replace air and form a nitrogen environment. Under the protection of nitrogen, air will not be mixed in during the feeding process, avoiding combustion and explosion during feeding, and solving the technical defects of the prior art where organic liquid raw materials are prone to combustion and explosion during feeding, affecting production safety.

[0053] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0054] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A feeding device, characterized in that, The feeding device includes: a nitrogen storage section, a gas supply pipeline, a tail gas collection section, a storage tank, a feed pipe sleeve, and a raw material tank; The nitrogen storage section is connected to the vent pipe through a first valve. The vent pipe is connected to the storage tank through a second valve through a feed pipe sleeve. The two ends of the feed pipe sleeve are connected to the storage tank and the raw material tank, respectively. The feed pipe sleeve is equipped with a third valve. The storage tank is connected to the exhaust gas collection section.

2. The feeding device according to claim 1, characterized in that, The feeding device further includes a material pump, which is disposed in the feed pipe sleeve.

3. The feeding device according to claim 1 or 2, characterized in that, The feeding device further includes a pressure gauge, which is installed in the feed pipe sleeve.

4. The feeding device according to claim 3, characterized in that, The feed pipe sleeve is equipped with a safety valve that connects to the inside of the storage tank.

5. The feeding device according to claim 1, characterized in that, The feeding device further includes a first pressure reducing valve, which is disposed between the first valve and the venting pipeline.

6. The feeding device according to claim 1 or 5, characterized in that, The feeding device further includes a second pressure reducing valve, which is disposed between the second valve and the feed pipe sleeve.

7. The feeding device according to claim 3 or 4, characterized in that, The feeding device further includes an exhaust pipe, the two ends of which are connected to the storage tank and the exhaust gas collection section, respectively.

8. The feeding device according to claim 7, characterized in that, The section connecting the exhaust pipe and the exhaust gas collection section is equipped with a fourth valve.

9. The feeding device according to claim 7 or 8, characterized in that, The exhaust pipe is connected to the pressure gauge, and a fifth valve is provided through the connection section between the exhaust pipe and the pressure gauge.

10. The feeding device according to claim 2, characterized in that, The pump is connected to an electrostatic grounding device. And / or, The raw material tank is connected to an electrostatic grounding device.

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