Isopropyl acetate separation equipment with protection structure

Abstract

The utility model provides isopropyl acetate separation equipment with a protection structure, which comprises a distillation tower, one end of the distillation tower is communicated with a reboiler, the other end of the distillation tower is communicated with a condenser, the distillation tower is provided with an injection port, and the injection port is provided with a control valve; the protection mechanism is communicated with the distillation tower through a pressure valve, the protection mechanism comprises a storage chamber and a pressure floating plate, the pressure floating plate is arranged at the bottom of the storage chamber, a control switch is arranged on the side wall of the storage chamber, and the control switch can be in contact with the pressure floating plate; the control switch is electrically connected with the control valve. Safety accidents caused by isopropyl acetate leakage due to the fact that a communication pipeline or a control valve is prone to damage can be avoided. And the pressure in the distillation tower is stable, so that the quality of the isopropyl acetate product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of isopropyl acetate processing, in particular to isopropyl acetate separation equipment with a protective structure. Background Art

[0002] Isopropyl acetate, also known as isopropyl acetate, is an organic compound that is slightly soluble in water and miscible in most organic solvents such as ethanol, ether, and esters. It is mainly used as a solvent for coatings, printing inks, etc. It is also a commonly used dehydrating agent in industry, an extractant in drug production, and a flavoring component.

[0003] At present, isopropyl acetate is often processed by distillation. During the distillation separation process, the pressure in the distillation tower will change due to the different injection, condensation and discharge speeds of the boiling liquid. The constant change of pressure in the distillation tower will cause different degrees of impact on each connecting pipe and control valve, making the connecting pipe or control valve easy to be damaged, resulting in leakage of isopropyl acetate and causing safety accidents. The constant change of pressure in the distillation tower will also cause the quality of the processed isopropyl acetate to be unstable. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.

[0005] To this end, one object of the utility model is to provide an isopropyl acetate separation device with a protective structure, which balances the pressure inside the distillation tower and controls the injection of raw materials through the protective mechanism, so as to reduce the impact of the pressure change in the distillation tower on each connecting pipe and control valve, thereby avoiding the connecting pipe or control valve from being easily damaged, resulting in leakage of isopropyl acetate and causing safety accidents.

[0006] To achieve the above-mentioned purpose, the first embodiment of the utility model proposes an isopropyl acetate separation device with a protective structure, including: a distillation tower, one end of the distillation tower is connected to a reboiler, the other end of the distillation tower is connected to a condenser, an injection port is arranged on the distillation tower, and a control valve is arranged at the injection port; a protective mechanism, the protective mechanism is connected to the distillation tower through a pressure valve, the protective mechanism includes a storage chamber and a pressure floating plate, the pressure floating plate is arranged at the bottom of the storage chamber, and a control switch is arranged on the side wall of the storage chamber, and the control switch can be in contact with the pressure floating plate; the control switch is electrically connected to the control valve.

[0007] According to an isopropyl acetate separation device with a protective structure in an embodiment of the utility model, the protective mechanism can balance the pressure inside the distillation tower and control the injection of raw materials, so as to reduce the impact of the pressure change in the distillation tower on each connecting pipe and the control valve, thereby avoiding the connecting pipe or the control valve from being easily damaged, resulting in leakage of isopropyl acetate and causing safety accidents.

[0008] In addition, the isopropyl acetate separation device with a protective structure according to the above embodiment of the utility model may also have the following additional technical features:

[0009] Furthermore, the bottom end of the distillation tower is connected to the inlet of the reboiler, and the outlet of the reboiler is connected to one side of the distillation tower.

[0010] Furthermore, the top of the distillation tower is connected to the inlet of the condenser, and the outlet of the condenser is provided with a discharge port, and the discharge port is connected to one side of the distillation tower through a reflux pipe.

[0011] Furthermore, a floating plate spring is arranged between the pressure floating plate and the bottom wall of the storage chamber, and the control switch is arranged on a side where the pressure floating plate is connected to the floating plate spring.

[0012] Furthermore, a guide groove is provided at a position where the pressure floating plate contacts the control switch.

[0013] Furthermore, the storage chamber is communicated with the injection port.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 It is a structural schematic diagram of an isopropyl acetate separation device with a protective structure according to one embodiment of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of an isopropyl acetate separation device with a protective structure according to another embodiment of the utility model;

[0018] Figure 3 A partial enlarged schematic diagram of an isopropyl acetate separation device with a protective structure according to another embodiment of the utility model Figure 1 ;

[0019] Figure 4 A partial enlarged schematic diagram of an isopropyl acetate separation device with a protective structure according to another embodiment of the utility model Figure 2 .

[0020] Drawing numbers: 100, distillation tower, 101, injection port, 102, control valve, 103, pressure valve, 110, reboiler, 120, condenser, 121, discharge port, 122, reflux pipe, 200, protection mechanism, 201, storage chamber, 210, pressure float plate, 211, float plate spring, 212, guide groove, 220, control switch. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following describes an isopropyl acetate separation device with a protective structure according to an embodiment of the utility model with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the isopropyl acetate separation device with a protective structure includes a distillation tower 100, one end of the distillation tower 100 is connected to a reboiler 110, and the other end of the distillation tower 100 is connected to a condenser 120. An injection port 101 is arranged on the distillation tower 100, and a control valve 102 is arranged on the injection port 101.

[0024] The bottom end of the distillation tower 100 is connected to the inlet of the reboiler 110, and the outlet of the reboiler 110 is connected to one side of the distillation tower 100. The top end of the distillation tower 100 is connected to the inlet of the condenser 120, and the outlet of the condenser 120 is provided with a discharge port 121, and the discharge port 121 is connected to one side of the distillation tower 100 through a reflux pipe 122.

[0025] Specifically, the boiling isopropyl acetate processing raw material enters the distillation tower 100 from the injection port 101, the upward portion passes through the condenser 120 and is then discharged, and the downward portion enters the reboiler 110 to be heated and then refluxes into the distillation tower 100.

[0026] As a possible situation, the top of the distillation tower 100 is connected to the inlet of the condenser 120 , and the outlet of the condenser 120 is provided with an outlet 121 , and the outlet 121 is connected to one side of the distillation tower 100 through a reflux pipe 122 .

[0027] Specifically, the isopropyl acetate entering the condenser 120 from the top of the distillation tower 100 is partially liquefied and discharged from the discharge port 121 , and the remaining portion flows back into the distillation tower 100 through the reflux pipe 122 .

[0028] The protection mechanism 200 is connected to the distillation tower 100 through the pressure valve 103. The protection mechanism 200 includes a storage chamber 201 and a pressure float 210. The pressure float 210 is arranged at the bottom of the storage chamber 201. A control switch 220 is arranged on the side wall of the storage chamber 201. The control switch 220 can contact the pressure float 210; the control switch 220 is electrically connected to the control valve 102.

[0029] Among them, Figure 2 , Figure 3 and Figure 4 As shown, a floating plate spring 211 is provided between the pressure floating plate 210 and the bottom wall of the storage chamber 201, and the control switch 220 is provided on the side where the pressure floating plate 210 and the floating plate spring 211 are connected. A guide groove 212 is provided at the position where the pressure floating plate 210 and the control switch 220 contact.

[0030] Specifically, when the pressure in the distillation tower 100 exceeds the preset pressure value, the pressure valve 103 opens and discharges part of the gas into the storage chamber 201. In the process of gradually increasing the pressure in the storage chamber 201, the pressure float plate 210 compresses the float plate spring 211, and the pressure float plate 210 moves. After the pressure float plate 210 moves a preset distance, it contacts the control switch 220, triggering the control switch 220. The control switch 220 controls the control valve 102 to close and stop injecting raw materials into the distillation tower 100. When the pressure in the distillation tower 100 drops to the preset value, the pressure valve 103 is closed and the control valve 102 is opened, so that the impact of the pressure change in the distillation tower 100 on each connecting pipe and the control valve 102 door can be reduced, thereby preventing the connecting pipe or the control valve 102 door from being easily damaged, resulting in leakage of isopropyl acetate and causing safety accidents.

[0031] It should be noted that, during the contact process between the pressure floating plate 210 and the control switch 220 , the pressure floating plate 210 will gradually be embedded in the guide groove 212 to avoid a hard collision.

[0032] like Figure 1 As shown, in one embodiment of the present invention, the storage chamber 201 is communicated with the injection port 101 .

[0033] Specifically, during the process of opening the control valve 102 , relevant staff may operate to discharge the raw materials in the storage chamber 201 to the injection port 101 , so that the raw materials can enter the distillation tower 100 again.

[0034] In summary, the isopropyl acetate separation device with a protective structure according to the embodiment of the utility model can balance the pressure inside the distillation tower 100 and control the injection of raw materials through the protective mechanism 200, so as to reduce the impact of the pressure change in the distillation tower 100 on each connecting pipe and the control valve 102, thereby preventing the connecting pipe or the control valve 102 from being easily damaged, resulting in leakage of isopropyl acetate and causing safety accidents. In addition, the pressure in the distillation tower 100 is stabilized to improve the quality of the isopropyl acetate product.

[0035] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An isopropyl acetate separation device with a protective structure, characterized in that: include: A distillation tower, one end of which is connected to a reboiler, the other end of which is connected to a condenser, an injection port is provided on the distillation tower, and a control valve is provided on the injection port; A protection mechanism, the protection mechanism is connected to the distillation tower through a pressure valve, the protection mechanism comprises a storage chamber and a pressure floating plate, the pressure floating plate is arranged at the bottom of the storage chamber, a control switch is arranged on the side wall of the storage chamber, and the control switch can contact the pressure floating plate; The control switch is electrically connected to the control valve.

2. The isopropyl acetate separation device with a protective structure according to claim 1, characterized in that: The bottom end of the distillation tower is connected to the inlet of the reboiler, and the outlet of the reboiler is connected to one side of the distillation tower.

3. The isopropyl acetate separation device with a protective structure according to claim 1, characterized in that: The top of the distillation tower is connected to the inlet of the condenser, the outlet of the condenser is provided with a discharge port, and the discharge port is connected to one side of the distillation tower through a reflux pipe.

4. The isopropyl acetate separation device with a protective structure according to claim 1, characterized in that: A floating plate spring is arranged between the pressure floating plate and the bottom wall of the storage chamber, and the control switch is arranged on a side where the pressure floating plate is connected to the floating plate spring.

5. The isopropyl acetate separation device with a protective structure according to claim 4, characterized in that: A guide groove is provided at a position where the pressure floating plate contacts the control switch.

6. The isopropyl acetate separation device with a protective structure according to claim 1, characterized in that: The storage chamber is communicated with the injection port.

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