A closed transfer and discharge device for acyl chloride reaction solution

Abstract

This utility model provides a closed transfer and discharge device for acyl chloride reaction liquid, specifically relating to the field of acyl chloride reaction liquid technology. It includes a reaction tank, a receiving tank, a closed pipeline, and a discharge pipeline. The device is characterized by: four sets of support legs fixedly welded around the outside of the reaction tank for suspending it above the ground; a discharge port at the bottom of the reaction tank; and an inert gas inlet A, a first exhaust port, and a first pressure balance port at the top. A receiving tank is located on one side of the reaction tank, with a feed inlet on its surface. The feed inlet is connected to the discharge port at the bottom of the reaction tank via a closed pipeline. This utility model connects the discharge port of the reaction tank and the feed inlet of the receiving tank via a closed pipeline, and uses a sealing flange at the connection for efficient sealing, ensuring that the reaction liquid is completely sealed throughout the transfer process from the reaction tank to the receiving tank, thoroughly isolating it from external air and moisture.

Description

Technical Field

[0001] This utility model relates to the field of acyl chloride reaction solution technology, specifically to a closed transfer and discharge device for acyl chloride reaction solution. Background Technology

[0002] Acyl chloride compounds are extremely reactive, readily hydrolyzing in water and oxidizing in oxygen. Furthermore, they easily release corrosive gases (such as hydrogen chloride) during transfer. Currently, the industrial transfer method involves opening the bottom valve of the reactor after the reaction and transferring the reaction liquid to a receiving tank via a temporary pipeline. This method is difficult to completely isolate from air and moisture, thus presenting significant drawbacks.

[0003] 1. Air infiltration can cause acyl chloride decomposition, reducing product purity and yield;

[0004] 2. The volatile toxic gases are directly released into the air, endangering the health of operators;

[0005] 3. The pressure in the reaction vessel and the receiving vessel was not synchronized;

[0006] 4. Relying on manual control of valves and pipeline connections results in low efficiency and poor sealing reliability.

[0007] Therefore, to address the aforementioned technical problems, it is necessary to design a closed transfer and discharge device for acyl chloride reaction liquid. Through innovative structure, the reaction liquid can be transported in an inert atmosphere without oxygen, achieve dynamic pressure balance, and be directionally treated for exhaust gas, thereby fundamentally solving the shortcomings of existing technologies. Utility Model Content

[0008] The purpose of this invention is to provide a closed transfer and discharge device for acyl chloride reaction solution to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a closed transfer and discharge device for acyl chloride reaction liquid, comprising a reaction tank, a receiving tank, a closed pipeline, and a discharge pipeline, characterized in that: four sets of support legs are fixedly welded around the outside of the reaction tank for suspending the reaction tank above the ground, and the bottom of the reaction tank is provided with a discharge port, and the top of the reaction tank is provided with an inert gas inlet A, a first exhaust port, and a first pressure balance port. A receiving tank is provided on one side of the reaction tank, and the surface of the receiving tank is provided with a feed port, which is connected to the discharge port at the bottom of the reaction tank through a closed pipeline. The top of the receiving tank is provided with an inert gas inlet B, and the inert gas inlet B and the inert gas inlet A at the top of the reaction tank are connected through an inert gas main pipe, which is controlled by a main valve at the center of the inert gas main pipe. The top of the receiving tank is provided with a second exhaust port and a second pressure balance port, and a discharge port is provided through the bottom of one side of the receiving tank, which is sealed to the discharge pipeline on the outside.

[0010] Preferably, the connection points at both ends of the sealed pipeline to the outlet in the reaction tank and the inlet in the receiving tank are sealed with sealing flanges to ensure that the reaction liquid is isolated from the outside air throughout the entire transfer process.

[0011] Preferably, the top of the reaction vessel and the receiving vessel are respectively equipped with a first pressure sensor and a second pressure sensor to monitor the pressure inside the vessel.

[0012] Preferably, the first exhaust port and the first pressure balance port at the top of the reaction tank and the second exhaust port and the second pressure balance port at the top of the receiving tank are all connected to an external exhaust gas treatment system or an inert gas recovery system.

[0013] Preferably, the inert gas main pipe is connected to an external inert gas source to deliver inert gas to the reaction tank and the receiving tank respectively, and a gas delivery pump is provided at the connection point.

[0014] Preferably, the sealed pipeline is provided with a first valve near the outlet of the reaction tank and a second valve near the inlet of the receiving tank.

[0015] Preferably, a third valve and a fourth valve are sequentially provided on the discharge pipe near the discharge port, and a discharge port is provided between the third valve and the fourth valve. The discharge port is used to connect to downstream equipment or a sampling port.

[0016] Preferably, a control panel is provided on one side surface of the reaction vessel. The control panel is electrically connected to various valves and pressure sensors, and can control the gas delivery pump to deliver inert gas according to the set pressure parameters to maintain positive pressure in the reaction vessel and receiving vessel.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model connects the outlet of the reaction tank and the inlet of the receiving tank through a closed pipeline, and uses a sealing flange at the connection for efficient sealing, ensuring that the reaction liquid is in a completely closed state throughout the transfer from the reaction tank to the receiving tank, completely isolating it from external air and moisture; the inert gas pipe can continuously or intermittently introduce inert gas into the reaction tank and the receiving tank to maintain a stable inert gas atmosphere inside the tank, effectively preventing side reactions such as hydrolysis and oxidation of the acyl chloride reaction liquid due to contact with oxygen or water vapor.

[0019] 2. This utility model is designed so that the first exhaust port and the first pressure balance port at the top of the reaction tank, and the second exhaust port and the second pressure balance port at the top of the receiving tank are all connected to an external exhaust gas treatment system or an inert gas recovery system. Any volatile gases generated during the introduction of inert gas or pressure regulation can be directionally and tightly discharged to the treatment system through these exhaust ports and pressure balance ports for absorption or recovery, thus preventing toxic and harmful gases from directly escaping into the operating environment and ensuring the health and safety of the operators.

[0020] 3. This utility model uses a first pressure sensor and a second pressure sensor respectively installed on the top of the reaction tank and the receiving tank to monitor the pressure status of the two tanks in real time and accurately. When transferring the reaction liquid, the reaction liquid is driven to flow smoothly and steadily into the receiving tank through the sealed pipe by pressurizing or venting the inert gas, thus avoiding transfer difficulties caused by pressure imbalance. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present utility model.

[0022] Figure 2 for Figure 1 A magnified view of a portion of point AA in the middle.

[0023] The components in the attached diagram are labeled as follows: 1: Reaction vessel; 101: Discharge port; 102: First exhaust port; 103: First pressure balancing port; 104: First pressure sensor; 2: Support leg; 3: Receiving tank; 31: Inlet; 32: Second exhaust port; 33: Second pressure balancing port; 34: Second pressure sensor; 4: Inert gas inlet A; 5: Inert gas inlet B; 6: Inert gas main pipe; 61: Main valve; 7: Inert gas source; 8: Gas transfer pump; 9: Sealed pipeline; 91: First valve; 92: Second valve; 10: Sealing flange; 11: Control panel; 12: Discharge port; 13: Discharge pipeline; 131: Third gate; 132: Fourth gate; 133: Discharge port. Detailed Implementation

[0024] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0025] like Figures 1 to 2As shown, this embodiment provides a closed transfer and discharge device for acyl chloride reaction liquid: including a reaction tank 1, a receiving tank 3, a closed pipe 9, and a discharge pipe 13. The reaction tank 1 is used for acyl chloride reaction or storage of acyl chloride reaction liquid. Four sets of support legs 2 are fixedly welded around the outside of the reaction tank 1, which suspends the reaction tank 1 above the ground. The discharge port 101 at the bottom of the reaction tank 1 is connected to one end of the closed pipe 9 via a sealing flange 10. The other end of the closed pipe 9 is also connected to the inlet 31 on the surface of the receiving tank 3 via a sealing flange 10. The top of the reaction tank 1 is provided with an inert gas inlet A4 and a first row of... The gas inlet 102 and the first pressure balance port 103 are connected by an inert gas inlet B5, a second exhaust port 32, and a second pressure balance port 33 at the top of the receiving tank 3. The inert gas inlet B5 and the inert gas inlet A4 at the top of the reaction tank 1 are connected by an inert gas main pipe 6. A main valve 61 is located at the center of the inert gas main pipe 6 for control. The inert gas inlet 6 is connected to an external inert gas source 7 via a gas delivery pump 8 to control the delivery of inert gas to the reaction tank 1 and the receiving tank 3 respectively. A first valve 91 is located near the discharge port 101 of the reaction tank 1 in the sealed pipe 9. A second valve 92 is installed near the inlet 31 of the receiving tank 3. The design of the first valve 91 and the second valve 92 facilitates more precise control of the flow direction of the reaction liquid. A discharge port 12 is opened at the bottom of one side of the receiving tank 3. The discharge port 12 is sealed and connected to a discharge pipe 13. A third valve 131 and a fourth valve 132 are installed in sequence near the discharge port 12 on the discharge pipe 13. A discharge port 133 is provided between the third valve 131 and the fourth valve 132. The discharge port 133 is used to connect to downstream equipment or a sampling port. A first pressure sensor 104 and a second pressure sensor 105 are respectively installed on the top of the reaction tank 1 and the receiving tank 3. Force sensor 34, both transmit signals to control panel 11 on the side wall of reaction tank 1. Control panel 11 is electrically connected to each valve and pressure sensor. It can automatically regulate the opening and closing of gas delivery pump 8 and main valve 61, first valve 91, second valve 92, third valve 131 and fourth valve 132 according to the set pressure parameters, and control the flow of inert gas or reaction liquid. The first exhaust port 102 and first pressure balance port 103 at the top of reaction tank 1 and the second exhaust port 32 and second pressure balance port 33 at the top of receiving tank 3 are all connected to an external exhaust gas treatment system or inert gas recovery system.

[0026] Working principle: First, prepare for the sealed transfer by closing all gates and opening the main valve 61 and gas delivery pump 8 to deliver inert gas to the reaction tank 1 and receiving tank 3. Maintain gas delivery by observing the pressure sensor values. When the gas in the two tanks is balanced, open the first valve 91 and the second valve 92. Adjust the gas delivery in the reaction tank 1 through the control panel 11. The gas pressure drives the reaction liquid in the reaction tank 1 to flow into the receiving tank 3 through the sealed pipe 9. Close the second valve 92 and open the third valve 131 and the fourth valve 132. The gas pressure in the receiving tank 3 pushes the reaction liquid into the discharge pipe 13. When sampling is required, close the fourth valve 132. After obtaining the sample from the discharge port 133, immediately restore the sealed state.

[0027] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A closed transfer and discharge device for acyl chloride reaction solution, comprising a reaction tank (1), a receiving tank (3), a closed pipeline (9), and a discharge pipeline (13), characterized in that: The reaction vessel (1) is fixedly welded with four sets of support legs (2) around its exterior to suspend the reaction vessel (1) above the ground. The bottom of the reaction vessel (1) has a discharge port (101), and the top has an inert gas inlet A (4), a first exhaust port (102), and a first pressure balance port (103). A receiving tank (3) is located on one side of the reaction vessel (1). The surface of the receiving tank (3) has a feed inlet (31), which is connected to the discharge port (101) at the bottom of the reaction vessel (1) via a sealed pipe (9). The receiving tank (3) is provided with an inert gas inlet B (5) at the top. The inert gas inlet B (5) and the inert gas inlet A (4) at the top of the reaction tank (1) are connected through an inert gas main pipe (6). The inert gas main pipe (6) is provided with a main valve (61) at the center for control. The receiving tank (3) is provided with a second exhaust port (32) and a second pressure balance port (33) at the top. A discharge port (12) is provided at the bottom of one side of the receiving tank (3). The discharge port (12) is sealed to the discharge pipe (13) on the outside.

2. The acyl chloride reaction solution closed transfer and discharge device according to claim 1, characterized in that: The two ends of the sealed pipe (9) are connected to the outlet (101) in the reaction tank (1) and the inlet (31) in the receiving tank (3) by sealing flanges (10) to ensure that the reaction liquid is isolated from the outside air throughout the transfer process.

3. The acyl chloride reaction solution closed transfer and discharge device of claim 1, wherein: The top of the reaction vessel (1) and the receiving vessel (3) are respectively equipped with a first pressure sensor (104) and a second pressure sensor (34) for monitoring the pressure inside the vessel.

4. The acyl chloride reaction solution closed transfer and discharge apparatus according to claim 1, characterized by: The first exhaust port (102) and the first pressure balance port (103) at the top of the reaction vessel (1) and the second exhaust port (32) and the second pressure balance port (33) at the top of the receiving vessel (3) are all connected to an external exhaust gas treatment system or an inert gas recovery system.

5. The closed transfer and discharge device for acyl chloride reaction solution as described in claim 1, characterized in that: The inert gas main pipe (6) delivers inert gas to the reaction tank (1) and the receiving tank (3) respectively through an external inert gas source (7), and a gas delivery pump (8) is provided at the connection.

6. The acyl chloride reaction solution closed transfer and discharge apparatus according to claim 1, characterized by: The sealed pipeline (9) is provided with a first valve (91) near the outlet (101) of the reaction tank (1) and a second valve (92) near the inlet (31) of the receiving tank (3).

7. The acyl chloride reaction solution closed transfer and discharge apparatus of claim 1, wherein: The discharge pipe (13) is provided with a third valve (131) and a fourth valve (132) in sequence near the discharge port (12). A discharge port (133) is provided between the third valve (131) and the fourth valve (132). The discharge port (133) is used to connect to downstream equipment or sampling port.

8. The acyl chloride reaction solution closed transfer and discharge apparatus according to claim 1, characterized by: The reaction vessel (1) is provided with a control panel (11) on one side surface. The control panel (11) is electrically connected to each valve and pressure sensor. It can control the gas delivery pump (8) to deliver inert gas according to the set pressure parameters to maintain the positive pressure in the reaction vessel (1) and the receiving vessel (3).

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