Pressure control water mixing tank

Abstract

The utility model discloses a pressure control water mixing tank which comprises a base, the middle of the top face of the base is in threaded connection with a water mixing tank body, the upper surface of the water mixing tank body is connected with a quantifying mechanism in a penetrating mode, and an air inlet is formed in the top of the water mixing tank body. According to the pressure control water blending tank, through the arrangement of the quantifying mechanism, when water blending is conducted on the interior of the water blending tank body, materials are fed into the water blending tank body from the feeding opening, then a water pump is started, the water pump conveys a water source in a water tank into the water blending tank body through a circulating pipe, and a flow meter is installed at the tail end of the circulating pipe; the flow meter can detect the capacity of injected water in real time, when the water capacity reaches a preset value, a signal is transmitted to the PLC console on one side, and finally the PLC console controls the water pump to be closed, so that the effect of accurately controlling the capacity of the injected water source is achieved, and the situation that too much or too little water source is injected, and the quality of a final product is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of MDI production technology, specifically to a pressure-controlled water mixing tank. Background Technology

[0002] In MDI (diphenylmethane diisocyanate) production and related chemical processes, pressure-controlled mixing tanks play a crucial role. These tanks must not only withstand extreme environments of high pressure and high temperature, but also ensure that chemicals are mixed with water or other solvents in precise proportions while avoiding any potential leakage risks.

[0003] Existing pressure-controlled water mixing tanks require a certain amount of MDI and water to be injected into the tank according to a preset ratio during use. It is not easy to accurately control the volume of water injected. Too much or too little water will affect the final quality of the product. Therefore, a pressure-controlled water mixing tank is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: to provide a pressure-controlled water mixing tank with high practicality and simple operation and structure, which solves the problem mentioned in the background art that it is not easy to accurately control the volume of injected water, and that too much or too little water will affect the final quality of the product.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A pressure-controlled water mixing tank includes a base, a water mixing tank body threadedly connected to the center of the top surface of the base, a metering mechanism penetrating the upper surface of the water mixing tank body, an air inlet at the top of the water mixing tank body, a pressure control mechanism connected to the surface of the air inlet, and a PLC control console mounted on the top surface of the base. The metering mechanism includes a flow pipe penetrating the upper surface of the water mixing tank body, a flow meter mounted on the surface of the flow pipe, a water pump penetrating the end of the flow pipe, and one side of the flow meter electrically connected to one side of the PLC control console via a power cord. The pressure control mechanism includes an air pipe connected to the surface of the air inlet, an air pump connected to the end of the air pipe, an extension pipe connected to the end of the air pump, and a pressure gauge mounted on the upper surface of the water mixing tank body, one side of the pressure gauge electrically connected to one side of the PLC control console via a power cord.

[0007] As a further embodiment of this utility model: the end of the water pump is connected to a water tank through a pipe, and the surface of the water tank is provided with a water inlet for easy replenishment of water.

[0008] As a further embodiment of this utility model: the end of the extension tube is connected to an inert gas storage box, the inert gas storage box is fixedly connected to the surface of the base, and the inert gas storage box is convenient for storing inert gas.

[0009] As a further embodiment of this utility model: the upper surface of the water mixing tank body is provided with a feed inlet, and a sealing cover is hinged to one side of the feed inlet. The sealing cover facilitates ensuring that the inside of the water mixing tank body is in a sealed state.

[0010] As a further embodiment of this utility model: a pressure relief port is provided on the top of the main body of the water mixing tank, and a pressure relief valve is installed on the surface of the pressure relief port, so that the pressure relief port can facilitate the pressure relief inside the main body of the water mixing tank.

[0011] As a further embodiment of this utility model: one side of the pressure relief valve is electrically connected to one side of the PLC control panel via a power cord, and an activated carbon layer is installed inside the pressure relief port, which facilitates the adsorption of harmful substances.

[0012] As a further embodiment of this utility model: the bottom of the water mixing tank body is provided with four threaded holes, and the internal threads of the threaded holes are connected to threaded posts, which facilitate the fixing of the water mixing tank body.

[0013] The beneficial effects of this utility model are:

[0014] 1. Through the setting of the quantitative mechanism, when adding water to the main body of the water mixing tank, the material is put into the main body of the water mixing tank through the feed port, and then the water pump is started. The water pump delivers the water source in the water tank to the main body of the water mixing tank through the flow pipe. A flow meter is installed at the end of the flow pipe. The flow meter can detect the injected water volume in real time. When the water volume reaches the preset value, it transmits the signal to the PLC control console on one side. Finally, the PLC control console controls the water pump to shut down, thereby achieving the effect of precise control of the injected water volume and avoiding the injection of too much or too little water, which would affect the quality of the final product.

[0015] 2. By setting up a pressure control mechanism, when controlling the internal pressure of the water mixing tank, after the material and water source are placed inside the water mixing tank, the air pump on one side is started. The air pump delivers the inert gas from the inert gas storage tank to the water mixing tank through the air pipe, gradually increasing the internal pressure of the water mixing tank, promoting the full mixing of MDI and water, and accelerating the chemical reaction rate. Once the predetermined reaction endpoint is reached, the pressure relief valve on the top of the PLC control console begins to slowly release the excess pressure to avoid excessive pressure causing safety accidents. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the quantitative mechanism structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pressure control mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the water mixing tank of this utility model.

[0021] In the diagram: 1. Base; 2. Water mixing tank body; 3. Metering mechanism; 301. Flow pipe; 302. Flow meter; 303. Water pump; 4. Air inlet; 5. Pressure control mechanism; 501. Air pipe; 502. Air pump; 503. Extension pipe; 504. Pressure gauge; 6. PLC control console; 7. Water tank; 8. Water inlet; 9. Inert gas storage tank; 10. Feed inlet; 11. Sealing cover; 12. Pressure relief port; 13. Pressure relief valve; 14. Threaded column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4As shown, a pressure-controlled water mixing tank includes a base 1. A water mixing tank body 2 is threadedly connected to the center of the top surface of the base 1. A metering mechanism 3 is connected through the upper surface of the water mixing tank body 2. Through the metering mechanism 3, when mixing water inside the water mixing tank body 2, the material is fed into the water mixing tank body 2 through the inlet 10. Then, a water pump 303 is started, and the water pump 303 transports the water source inside the water tank 7 to the water mixing tank body 2 through a flow pipe 301. A flow meter 302 is installed at the end of the flow pipe 301, and the flow meter 302 can measure the flow rate. The injected water volume is monitored in real time. When the water volume reaches the preset value, a signal is transmitted to the PLC control console 6 on one side. Finally, the PLC control console 6 controls the water pump 303 to shut down, thereby achieving precise control of the injected water volume and preventing excessive or insufficient water injection, which would affect the quality of the final product. The top of the water mixing tank body 2 is provided with an air inlet 4, and the surface of the air inlet 4 is connected to a pressure control mechanism 5. Through the setting of the pressure control mechanism 5, the materials and water are placed into the water mixing tank body 2 while controlling the internal pressure. Afterwards, the air pump 502 on one side is started. The air pump 502 delivers the inert gas from the inert gas storage tank 9 to the water mixing tank body 2 through the air pipe 501, gradually increasing the internal pressure of the water mixing tank body 2, promoting the full mixing of MDI and water, and accelerating the chemical reaction rate. Once the predetermined reaction endpoint is reached, the PLC control console 6 controls the pressure relief valve 13 on the top to slowly release the excess pressure, avoiding excessive pressure and safety accidents. The PLC control console 6 is installed on the top surface of the base 1. The metering mechanism 3 includes a flow meter that runs through and connects to the upper surface of the water mixing tank body 2. A flow meter 302 is installed on the surface of the flow pipe 301, and a water pump 303 is connected through the end of the flow pipe 301. One side of the flow meter 302 is electrically connected to one side of the PLC control console 6 via a power cord. The pressure control mechanism 5 includes an air pipe 501 connected to the surface of the air inlet 4, an air pump 502 connected to the end of the air pipe 501, an extension pipe 503 connected to the end of the air pump 502, and a pressure gauge 504 is installed on the upper surface of the water mixing tank body 2. One side of the pressure gauge 504 is electrically connected to one side of the PLC control console 6 via a power cord.

[0024] like Figure 2 As shown, the end of the water pump 303 is connected to a water tank 7 through a pipe. The surface of the water tank 7 is provided with a water inlet 8, which facilitates the replenishment of water.

[0025] like Figure 3 As shown, the end of the extension tube 503 is connected to an inert gas storage box 9, which is fixedly connected to the surface of the base 1. The inert gas storage box 9 facilitates the storage of inert gas.

[0026] like Figure 4As shown, a feed inlet 10 is provided on the upper surface of the water mixing tank body 2. A sealing cover 11 is hinged to one side of the feed inlet 10. The sealing cover 11 helps to ensure that the inside of the water mixing tank body 2 is sealed.

[0027] like Figure 4 As shown, a pressure relief port 12 is provided on the top of the water mixing tank body 2, and a pressure relief valve 13 is installed on the surface of the pressure relief port 12. The pressure relief port 12 facilitates the pressure relief of the inside of the water mixing tank body 2.

[0028] like Figure 4 As shown, one side of the pressure relief valve 13 is electrically connected to one side of the PLC control panel 6 via a power cord. An activated carbon layer is installed inside the pressure relief port 12, which facilitates the adsorption of harmful substances.

[0029] like Figure 4 As shown, the bottom of the water mixing tank body 2 is provided with four threaded holes, and the internal threads of the threaded holes are connected to threaded posts 14, which facilitates the fixing of the water mixing tank body 2.

[0030] The working principle of this utility model is as follows: When adding water to the body of the water tank 2, the material is put into the body of the water tank 2 through the feed inlet 10. Then the water pump 303 is started. The water pump 303 transports the water source in the water tank 7 to the body of the water tank 2 through the flow pipe 301. A flow meter 302 is installed at the end of the flow pipe 301. The flow meter 302 can detect the volume of water injected in real time. When the water volume reaches the preset value, it transmits the signal to the PLC control console 6 on one side. Finally, the PLC control console 6 controls the water pump 303 to shut down.

[0031] When controlling the internal pressure of the water mixing tank body 2, after the material and water source are placed inside the water mixing tank body 2, the air pump 502 on one side is started. The air pump 502 delivers the inert gas inside the inert gas storage tank 9 to the water mixing tank body 2 through the air pipe 501, gradually increasing the internal pressure of the water mixing tank body 2, so as to promote the full mixing of MDI and water and accelerate the chemical reaction rate. Once the predetermined reaction endpoint is reached, the PLC control console 6 controls the pressure relief valve 13 on the top to slowly release the excess pressure.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A pressure controlled water mixing tank comprising a base (1), characterised in that: The top surface of the base (1) is screw connected with a water tank main body (2), the upper surface of the water tank main body (2) is connected with a quantitative mechanism (3), the top of the water tank main body (2) is provided with an air inlet (4), the surface of the air inlet (4) is connected with a pressure control mechanism (5), the top surface of the base (1) is installed with a PLC console (6), The quantitative mechanism (3) includes a flow pipe (301) connected with the upper surface of the water tank main body (2), the surface of the flow pipe (301) is installed with a flow meter (302), the end of the flow pipe (301) is connected with a water pump (303), one side of the flow meter (302) is electrically connected with one side of the PLC console (6) through a power line; The pressure control mechanism (5) includes a gas pipe (501) connected with the surface of the air inlet (4), the end of the gas pipe (501) is connected with a gas pump (502), the end of the gas pump (502) is connected with an extension pipe (503), the upper surface of the water tank main body (2) is installed with a pressure gauge (504), one side of the pressure gauge (504) is electrically connected with one side of the PLC console (6) through a power line.

2. A pressure controlled water mixing tank according to claim 1, wherein The end of the water pump (303) is connected with a water tank (7) through a pipeline, the surface of the water tank (7) is provided with a water inlet (8).

3. A pressure controlled water mixing tank according to claim 1, wherein The end of the extension pipe (503) is connected with an inert gas storage tank (9), the inert gas storage tank (9) is fixedly connected with the surface of the base (1).

4. The pressure controlled water mixing tank according to claim 1, wherein, The upper surface of the water tank main body (2) is provided with a feeding port (10), one side of the feeding port (10) is hinged with a sealing cover (11) through a hinge.

5. The pressure controlled water mixing tank of claim 1, wherein, The top of the water tank main body (2) is provided with a pressure relief port (12), the surface of the pressure relief port (12) is installed with a pressure relief valve (13).

6. A pressure controlled water mixing tank according to claim 5, wherein One side of the pressure relief valve (13) is electrically connected with one side of the PLC console (6) through a power line, the inside of the pressure relief port (12) is installed with an activated carbon layer.

7. A pressure controlled water mixing tank according to claim 1, wherein The bottom of the water tank main body (2) is provided with four threaded holes, the inside of the threaded holes is screw connected with threaded columns (14).

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