Chemical production material conveying device

Abstract

The utility model belongs to the technical field of material conveying, and particularly relates to a chemical production material conveying device which comprises a reaction kettle provided with a detection device for detecting the liquid level height, and a high-flow input pipe is arranged on the reaction kettle and used for rapidly inputting chemical production materials into the reaction kettle before the conveying amount is close to a set value. The side face of the large-flow input pipe is connected with a small-flow input pipe, the other end of the small-flow input pipe is connected to the reaction kettle, the large-flow input pipe is used for being opened after the conveying amount is close to a set value and the large-flow input pipe is closed, the conveying amount reaches the set value, meanwhile, a ball valve is installed on the large-flow input pipe, and a control valve and a flow meter are installed on the small-flow input pipe. Chemical production materials are conveyed into the reaction kettle through the large-flow input pipe, the large-flow input pipe is switched into the small-flow input pipe when the large-flow input pipe is close to a set value, the conveying efficiency is guaranteed, the precision of the conveying amount is improved, the product quality is guaranteed, and the precision of the conveying amount is further improved through detection of the flow meter and the flow meter arranged on the side, away from the reaction kettle, of the control valve.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and in particular relates to a material conveying device for chemical production. Background Technology

[0002] Chemical production materials refer to the raw materials used in the production of chemical products, including but not limited to various inorganic substances, organic substances, polymer materials, catalysts, solvents, additives, etc. The selection and use of these materials depend on factors such as the properties of the target chemical product, the requirements of the production process, and economic costs.

[0003] By selecting and proportioning materials appropriately, and by controlling production precisely, chemical products that meet market demands and quality standards can be produced. These chemical products are widely used in people's daily lives and industrial production, such as plastics, rubber, coatings, fertilizers, pesticides, pharmaceuticals, and cosmetics.

[0004] During the batching process, the accuracy of batching has a significant impact on product quality, production costs, safety, and the environment. Since chemical production materials are generally hazardous, they are usually transported into the reactor through conveying pipes. However, the existing methods for conveying production materials are relatively simple and lack sufficient control over the accuracy of the conveying volume. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a chemical production material conveying device, which improves the accuracy of conveying chemical production materials into the reactor, enhances product quality, reduces production costs and safety hazards, and avoids the potential for excessive emissions of some harmful substances.

[0006] In view of this, the present invention provides a chemical production material conveying device, comprising:

[0007] The reaction vessel is equipped with a detection device for monitoring the liquid level inside the reaction vessel;

[0008] A high-flow-rate delivery pipe is installed on the reactor and is used to quickly deliver chemical production materials into the reactor before the delivery rate approaches the set value.

[0009] The small flow rate delivery pipe is connected at one end to the large flow rate delivery pipe and at the other end to the reactor. It is used to open when the delivery rate is close to the set value and the large flow rate delivery pipe is closed, so that the delivery rate reaches the set value.

[0010] The ball valve is installed on the high-flow-rate delivery pipe and is located between the connection between the low-flow-rate delivery pipe and the high-flow-rate delivery pipe and the reactor.

[0011] A control valve is installed on a low-flow-rate delivery pipe and is used to open and close the low-flow-rate delivery pipe.

[0012] The flow meter is installed on the low-flow delivery pipe and is located on the side of the control valve away from the reactor.

[0013] Furthermore, the above technical solution also includes:

[0014] The storage tank is installed on the low-flow delivery pipe and is located between the flow meter and the high-flow delivery pipe;

[0015] The self-closing valve is installed on the low-flow delivery pipe and located between the storage tank and the high-flow delivery pipe.

[0016] The self-closing valve is used to control the flow of large-flow pipelines into the storage tank.

[0017] In the above technical solution, further:

[0018] When the ball valve is closed, the static pressure in the high-flow-rate delivery pipe can open the self-closing valve; when the ball valve is open, the dynamic pressure in the high-flow-rate delivery pipe cannot open the self-closing valve.

[0019] Among them, the flow rate into the storage tank from the high-flow-rate conveying pipe must be greater than the flow rate out of the storage tank.

[0020] Furthermore, the above technical solution also includes:

[0021] A venturi tube includes an inlet end, an outlet end, and a suction end, with both the inlet and outlet ends connected to a high-flow-rate delivery pipe.

[0022] The connecting tube is connected to the control valve at one end and to the suction end at the other end.

[0023] The control valve is used to switch between connecting the storage tank to the small-flow delivery pipe, connecting it to the connecting pipe, and shutting off the outflow.

[0024] Furthermore, the above technical solution also includes:

[0025] When the ball valve is open and the control valve opens the connecting pipe, the suction force of the venturi tube on the storage tank cannot open the self-closing valve.

[0026] In the above technical solution, further:

[0027] The self-closing valve includes a first valve body, a first valve core, a first valve seat, and a spring for pushing the first valve core against the first valve seat to close the first valve body.

[0028] In the above technical solution, further:

[0029] The control valve includes a second valve body, a second valve core, a second valve seat, and a drive component for driving the second valve core to rotate;

[0030] The second valve core has an L-shaped flow channel, one end of which is always connected to the storage tank, while the other end switches between the small flow delivery pipe and the connecting pipe under the action of the driving component.

[0031] In the above technical solution, further:

[0032] The reactor has a second feeding port at the top and a stirring mechanism installed inside.

[0033] The beneficial effects of this utility model are as follows:

[0034] 1. By setting up high-flow-rate and low-flow-rate delivery pipes, the chemical production materials are first delivered to the reactor through the high-flow-rate delivery pipe. When the flow rate approaches the set value, the flow rate is switched to the low-flow-rate delivery pipe. This can effectively improve the accuracy of the delivery volume of chemical production materials while ensuring delivery efficiency and product quality. Furthermore, by using a flow meter to detect the flow rate of the low-flow-rate delivery pipe and placing it on the side of the control valve away from the reactor, the accuracy of the delivery volume can be further improved.

[0035] 2. By installing storage tanks and self-closing valves, the stability of the flow rate in small-flow conveying pipes can be improved, ensuring the control of the conveying volume and further improving the conveying accuracy.

[0036] 3. By using a venturi tube and connecting pipe, the chemical production materials in the storage tank can be sucked out and used during the next batch configuration, thereby replacing the chemical production materials left in the storage tank. This prevents the chemical production materials from remaining in the storage tank for a long time, which could affect the quality of the chemical production materials and products, as well as the potential corrosion of the storage tank by some of the chemical production materials. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0039] Figure 3 This is a top view of the present invention;

[0040] Figure 4 This is a utility model Figure 3 Sectional view at point BB;

[0041] Figure 5 This is a utility model Figure 4 Enlarged view of point C in the middle;

[0042] The markings in the diagram represent: 1. Reactor; 2. High-flow-rate delivery pipe; 3. Low-flow-rate delivery pipe; 4. Ball valve; 5. Control valve; 50. Second valve body; 51. Second valve core; 52. Second valve seat; 53. Drive component; 54. L-shaped flow channel; 6. Flow meter; 7. Storage tank; 8. Self-closing valve; 80. First valve body; 81. First valve core; 82. First valve seat; 83. Spring; 9. Venturi tube; 90. Inlet end; 91. Outlet end; 92. Suction end; 10. Connecting pipe; 11. Second feed port; 12. Stirring mechanism. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0044] Example 1:

[0045] This embodiment provides a chemical production material conveying device, including:

[0046] The reactor 1 is equipped with a detection device for detecting the liquid level inside the reactor 1;

[0047] A high-flow-rate conveying pipe 2 is installed on the reactor 1 and is used to quickly convey chemical production materials into the reactor 1 before the conveying rate approaches the set value.

[0048] The small flow rate conveying pipe 3 is connected at one end to the large flow rate conveying pipe 2 and at the other end to the reactor 1. It is used to open when the conveying volume is close to the set value and the large flow rate conveying pipe 2 is closed, so that the conveying volume reaches the set value.

[0049] Ball valve 4 is installed on the high-flow-rate delivery pipe 2 and is located between the connection between the low-flow-rate delivery pipe 3 and the high-flow-rate delivery pipe 2 and the reactor 1.

[0050] Control valve 5 is installed on the low-flow delivery pipe 3 and is used to open and close the low-flow delivery pipe 3;

[0051] The flow meter 6 is installed on the small flow delivery pipe 3 and is located on the side of the control valve 5 away from the reactor 1;

[0052] The specific structure of the detection device and the flow meter 6 is a mature existing technology, which is known to those skilled in the art from traditional liquid level detection devices and flow meters 6, and will not be described in detail here.

[0053] As can be seen from this embodiment, by setting up a high-flow-rate conveying pipe 2 and a low-flow-rate conveying pipe 3, the chemical production materials are first conveyed into the reactor 1 through the high-flow-rate conveying pipe 2. After approaching the set value, the flow rate is switched to the low-flow-rate conveying pipe 3. This can effectively improve the accuracy of the conveying amount of chemical production materials while ensuring the conveying efficiency and product quality. Furthermore, by using a flow meter 6 to detect the flow rate of the low-flow-rate conveying pipe 3 and setting it on the side of the control valve 5 away from the reactor 1, the accuracy of the conveying amount can be further improved.

[0054] Specifically, regarding the accuracy control of the conveying volume, when the liquid level detection device detects that the liquid level has reached the required value, which is the amount of chemical production material required, the control valve 5 will be closed. Therefore, the amount of material entering the small-flow conveying pipe 3 during the period when the control valve 5 is closed can reflect the accuracy of the conveying volume. The smaller this amount, the higher the accuracy of the conveying volume; conversely, the larger this amount, the lower the accuracy of the conveying volume. Therefore, using the large-flow conveying pipe 2 in the early stage and the small-flow conveying pipe 3 in the later stage can effectively ensure the conveying efficiency and conveying accuracy.

[0055] Example 2:

[0056] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features and includes:

[0057] Storage tank 7 is installed on the small flow delivery pipe 3 and is located between the flow meter 6 and the large flow delivery pipe 2;

[0058] The self-closing valve 8 is installed on the small flow delivery pipe 3 and is located between the storage tank 7 and the large flow delivery pipe 2;

[0059] Among them, the self-closing valve 8 is used to control the delivery of high-flow-rate pipe 2 into storage tank 7.

[0060] As can be seen from this embodiment, by setting up the storage tank 7 and the self-closing valve 8, the stability of the flow rate conveyed by the small flow conveying pipe 3 can be improved, the control of the conveying volume can be guaranteed, and the accuracy of the conveying volume can be further improved.

[0061] Example 3:

[0062] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0063] When ball valve 4 is closed, the static pressure in the high-flow-rate delivery pipe 2 can open the self-closing valve 8; when ball valve 4 is open, the dynamic pressure in the high-flow-rate delivery pipe 2 cannot open the self-closing valve 8.

[0064] Among them, the flow rate of the high-flow-rate conveying pipe 2 into the storage tank 7 is greater than the flow rate of the storage tank 7 out of the storage tank 7.

[0065] As can be seen from this embodiment, when the ball valve 4 is closed, the pressure inside the high-flow-rate delivery pipe 2 can open the self-closing valve 8, thereby ensuring that after the ball valve 4 is closed, it can switch to the low-flow-rate delivery pipe 3, improving the accuracy of the delivery volume. Specifically, when switching to the low-flow-rate delivery pipe 3, it is usually done when the delivery volume reaches close to the set value. Therefore, the flow rate of the high-flow-rate delivery pipe 2 into the storage tank 7 must be greater than the flow rate of the storage tank 7 outflow. This not only effectively ensures that the storage tank 7 supplies material to the reactor 1 through the low-flow-rate delivery pipe 3, avoiding the impact of the flow rate of the low-flow-rate delivery pipe 3 on the stability of the flow rate of the low-flow-rate delivery pipe 3 due to the flow of water in the storage tank 7, but also prevents the storage tank 7 from becoming full when delivering through the low-flow-rate delivery pipe 3, effectively ensuring the stability of the flow rate of the low-flow-rate delivery pipe 3, and thus ensuring the accuracy of the delivery volume.

[0066] Example 4:

[0067] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features and includes:

[0068] The venturi tube 9 includes an inlet end 90, an outlet end 91, and a suction end 92, and both the inlet end 90 and the outlet end 91 are connected to the high-flow-rate delivery tube 2.

[0069] Connecting tube 10, one end is connected to control valve 5, and the other end is connected to suction end 92;

[0070] Among them, the control valve 5 is used to control the switching between the storage tank 7 and the small flow delivery pipe 3, the connection pipe 10, and the shut-off flow.

[0071] Meanwhile, the specific structure of the Venturi tube 9 is an existing mature technology, which is known to those skilled in the art from the traditional Venturi tube 9 structure, and will not be elaborated here.

[0072] As can be seen from this embodiment, by using the Venturi tube 9 and the connecting pipe 10, the chemical production materials in the storage tank 7 can be sucked out and used in the next batch configuration, thereby replacing the chemical production materials left in the storage tank 7, avoiding the chemical production materials from remaining in the storage tank 7 for a long time, which would affect the quality of the chemical production materials and products, as well as the potential corrosion of the storage tank 7 by some chemical production materials.

[0073] Example 5:

[0074] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features and includes:

[0075] When ball valve 4 is open and control valve 5 opens connecting pipe 10, the suction force of venturi tube 9 on storage tank 7 cannot open self-closing valve 8.

[0076] As can be seen from this embodiment, when the ball valve 4 is opened and the control valve 5 opens the connecting pipe 10, the suction force of the venturi tube 9 on the storage tank 7 cannot open the self-closing valve 8, which can maximize the suction of chemical production materials in the storage tank 7, avoid a large amount of chemical production materials from being in the storage tank 7 for a long time, further ensure product quality and avoid possible corrosion of the storage tank 7.

[0077] Example 6:

[0078] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0079] The self-closing valve 8 includes a first valve body 80, a first valve core 81, a first valve seat 82, and a spring 83 for pushing the first valve core 81 against the first valve seat 82 to close the first valve body 80.

[0080] As can be seen from this embodiment, by adopting the above-described structure for the self-closing valve 8 and by controlling the elastic properties of the spring 83, it is possible to achieve the following: when the ball valve 4 is closed, the pressure in the high-flow-rate delivery pipe 2 can open the self-closing valve 8; when the ball valve 4 is open, the pressure in the high-flow-rate delivery pipe 2 cannot open the self-closing valve 8; and the suction force of the venturi tube 9 on the storage tank 7 cannot open the self-closing valve 8. The structure is simple and the control is convenient.

[0081] Example 7:

[0082] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0083] The control valve 5 includes a second valve body 50, a second valve core 51, a second valve seat 52, and a drive member 53 for driving the second valve core 51 to rotate;

[0084] The second valve core 51 has an L-shaped flow channel 54L, one end of which is always connected to the storage tank 7, and the other end is switched between the small flow delivery pipe 3 and the connecting pipe 10 under the action of the driving component 53.

[0085] Meanwhile, the driving component 53 is a motor, and its specific structure is a mature existing technology, which will not be described in detail here. It is sufficient to enable the second valve core 51 to rotate.

[0086] Furthermore, the connection ends of the small flow delivery pipe 3 and the control valve 5 and the connection ends of the connecting pipe 10 and the control valve 5 are located on opposite sides of the control valve 5, and both connection ends are perpendicular to the connection end between the storage tank 7 and the control valve 5. In other words, when the driving component 53 drives the second valve core 51 to rotate, one end of the L-shaped flow channel 54L is always connected to the storage tank 7, while the other end circulates sequentially between connecting to the small flow delivery pipe 3, closing the outflow, connecting to the connecting pipe 10, and closing the outflow.

[0087] As can be seen from this embodiment, the structure of the control valve 5 facilitates switching between the storage tank 7 and the small flow delivery pipe 3, the connecting pipe 10 and the closed outlet. When switching from the small flow delivery pipe 3 to the connecting pipe 10, the closed outlet is required, thereby effectively improving the control accuracy of the delivery volume during switching. Furthermore, the drive unit 53 only needs to rotate the second valve core 51 in one direction, resulting in a simple structure.

[0088] Example 8:

[0089] This embodiment provides a chemical production material conveying device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0090] The reactor 1 has a second feeding port 11 at the top and a stirring mechanism 12 installed inside.

[0091] As can be seen from this embodiment, by opening a second feeding port 11 at the top of the reactor 1, it is convenient to add different chemical production materials, thereby improving convenience, while the internal stirring mechanism 12 can improve production efficiency.

[0092] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A chemical production material conveying device, characterized in that, include: The reactor (1) is equipped with a detection device for detecting the liquid level inside the reactor (1); A high-flow-rate conveying pipe (2) is installed on the reactor (1) and is used to quickly convey chemical production materials into the reactor (1) before the conveying rate approaches the set value. The small flow rate delivery pipe (3) is connected at one end to the large flow rate delivery pipe (2) and at the other end to the reactor (1). It is used to open when the delivery rate is close to the set value and the large flow rate delivery pipe (2) is closed, so that the delivery rate reaches the set value. The ball valve (4) is installed on the high flow rate delivery pipe (2) and is located between the connection between the low flow rate delivery pipe (3) and the high flow rate delivery pipe (2) and the reactor (1); The control valve (5) is installed on the small flow delivery pipe (3) and is used to open and close the small flow delivery pipe (3); The flow meter (6) is installed on the small flow delivery pipe (3) and is located on the side of the control valve (5) away from the reactor (1).

2. The chemical production material conveying device according to claim 1, characterized in that, Also includes: The storage tank (7) is installed on the small flow delivery pipe (3) and is located between the flow meter (6) and the large flow delivery pipe (2); The self-closing valve (8) is installed on the small flow delivery pipe (3) and located between the storage tank (7) and the large flow delivery pipe (2); The self-closing valve (8) is used to control the flow of the high-flow-rate pipe (2) into the storage tank (7).

3. The chemical production material conveying device according to claim 2, characterized in that: When the ball valve (4) is closed, the static pressure in the high-flow-rate delivery pipe (2) can open the self-closing valve (8); when the ball valve (4) is open, the dynamic pressure in the high-flow-rate delivery pipe (2) cannot open the self-closing valve (8). The flow rate of the high-flow-rate conveying pipe (2) into the storage tank (7) is greater than the flow rate of the storage tank (7) out.

4. The chemical production material conveying device according to claim 2, characterized in that, Also includes: The Venturi tube (9) includes an inlet end (90), an outlet end (91) and a suction end (92), and the inlet end (90) and the outlet end (91) are both connected to the high-flow-rate delivery tube (2); The connecting tube (10) is connected at one end to the control valve (5) and at the other end to the suction end (92); The control valve (5) is used to control the switching between the storage tank (7) and the small flow delivery pipe (3), the connection pipe (10), and the shut-off flow.

5. The chemical production material conveying device according to claim 4, characterized in that, Also includes: When the ball valve (4) is open and the control valve (5) opens the connecting pipe (10), the suction force of the venturi tube (9) on the storage tank (7) cannot open the self-closing valve (8).

6. The chemical production material conveying device according to claim 2, characterized in that: The self-closing valve (8) includes a first valve body (80), a first valve core (81), a first valve seat (82), and a spring (83) for pushing the first valve core (81) against the first valve seat (82) to close the first valve body (80).

7. The chemical production material conveying device according to claim 1, characterized in that: The control valve (5) includes a second valve body (50), a second valve core (51), a second valve seat (52), and a drive element (53) for driving the second valve core (51) to rotate; The second valve core (51) has an L-shaped flow channel (54) inside, and one end of the L-shaped flow channel (54) is always connected to the storage tank (7), while the other end switches between the small flow delivery pipe (3) and the connecting pipe (10) under the action of the driving component (53).

8. The chemical production material conveying device according to claim 1, characterized in that: The reactor (1) has a second feeding port (11) at the top and a stirring mechanism (12) installed inside.

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