A liquid separation spinning system

Abstract

The utility model discloses a liquid separation spinning system, comprising: a plurality of nozzle assemblies, the nozzle assemblies comprising a base, a plurality of nozzles being connected to the base, and a liquid spraying channel being arranged in the base; a plurality of slow-flow liquid supply pipes, one end of the plurality of slow-flow liquid supply pipes being connected to the plurality of bases one by one, and a cross-sectional area S2 of the slow-flow liquid supply pipe being smaller than a cross-sectional area S1 of the liquid spraying channel; a liquid inlet liquid supply pipe, the other ends of the plurality of slow-flow liquid supply pipes being connected to the liquid inlet liquid supply pipe, and a cross-sectional area S2 of the slow-flow liquid supply pipe being smaller than a cross-sectional area S3 of the liquid inlet liquid supply pipe. When the solution enters the slow-flow liquid supply pipe from the liquid inlet liquid supply pipe, the slow-flow liquid supply pipe will slow down the flow rate of the solution, so that the flow rate of the solution in the plurality of slow-flow liquid supply pipes is more uniform, and the solution in the liquid spraying channel will buffer the solution flowing in from the slow-flow liquid supply pipe, so that the solution entering the liquid spraying channel has less influence on the flow rate of the solution at the plurality of nozzles at different positions, thereby improving the uniformity of the liquid spraying amount of the plurality of nozzle assemblies and the plurality of nozzles.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spinning, in particular to a liquid separation spraying system. Background Art

[0002] Electrospinning refers to the process of spraying a polymer solution through a nozzle. Under the action of an electric field, the solution forms fiber filaments or fine mist and is deposited into a product. Electrospinning equipment usually has multiple nozzles. The uniformity of the product is related to the uniformity of the liquid spray volume of the multiple nozzles.

[0003] Some existing electrospinning equipment separates the number of multiple nozzles into multiple nozzle assemblies. The number of nozzles in each nozzle assembly is reduced, which can make the spray volume of multiple nozzles in each nozzle assembly more uniform. Although this improves the uniformity of the spray volume of multiple nozzles to a certain extent, there is still room for further improvement. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquid separation spinning system, aiming to solve the technical problem in the prior art that the uniformity of the liquid spraying amount of multiple nozzles is not high enough.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a liquid separation spinning system, comprising:

[0006] A nozzle assembly, wherein the number of the nozzle assemblies is multiple, the nozzle assembly comprises a base, a plurality of nozzles are connected to the base, a liquid spraying channel is provided in the base, and the plurality of nozzles are all connected to the liquid spraying channel;

[0007] A slow-flow liquid supply pipe, wherein the number of the slow-flow liquid supply pipes is plural, one end of each of the slow-flow liquid supply pipes is connected to each of the bases and communicated with the corresponding liquid spraying channels, and the cross-sectional area S2 of the slow-flow liquid supply pipe is smaller than the cross-sectional area S1 of the liquid spraying channel;

[0008] The other ends of the plurality of slow-flow liquid supply pipes are connected to the liquid inlet liquid supply pipe, and the cross-sectional area S2 of the slow-flow liquid supply pipe is smaller than the cross-sectional area S3 of the liquid inlet liquid supply pipe.

[0009] The solution is branched from the liquid inlet supply pipe into multiple slow-flow supply pipes, and the multiple slow-flow supply pipes are connected one by one to the bases in the multiple nozzle assemblies. The solution enters the spray channel in the base and is then branched to the multiple nozzles for spraying. Since the cross-sectional area S2 of the slow-flow supply pipe is smaller than the cross-sectional area S1 of the spray channel, and the cross-sectional area S2 of the slow-flow supply pipe is smaller than the cross-sectional area S3 of the liquid inlet supply pipe, when the solution enters the slow-flow supply pipe from the liquid inlet supply pipe, the slow-flow supply pipe will slow down the flow rate of the solution, so that the flow rate of the solution in the multiple slow-flow supply pipes is more uniform, and when the solution enters the spray channel, the solution in the spray channel will buffer the solution flowing in from the slow-flow supply pipe, so that the solution entering the spray channel has less influence on the flow rate of the solution at the multiple nozzles at different positions, thereby improving the uniformity of the spray amount of the multiple nozzle assemblies and the multiple nozzles.

[0010] Preferably, the liquid separation spinneret system also includes a plurality of liquid filling and supply pipes, one ends of the plurality of liquid filling and supply pipes are connected one by one to the plurality of bases and are connected to the corresponding liquid spray channels, and the cross-sectional area S4 of the liquid filling and supply pipes is larger than the cross-sectional area S2 of the slow-flow supply pipe.

[0011] Before the initial operation of the equipment, the liquid spray channel needs to be filled with solution. However, due to the small cross-sectional area of ​​the slow-flow liquid supply pipe, the filling time may be longer. Therefore, multiple liquid filling supply pipes are arranged in this scheme. The multiple liquid filling supply pipes are connected one by one to the bases in the multiple nozzle assemblies. When filling, the solution can be filled into the liquid spray channel through the liquid filling supply pipe. Moreover, since the cross-sectional area S4 of the liquid filling supply pipe is larger than the cross-sectional area S2 of the slow-flow liquid supply pipe, the flow rate of the solution in the liquid filling supply pipe is faster, which can speed up the filling speed and improve the production efficiency.

[0012] Preferably, the other ends of the plurality of liquid filling supply pipes are connected to the liquid inlet supply pipe, and the liquid filling supply pipes are provided with a liquid filling switch valve, which is used to open when initially filling the solution into the liquid spray channel and close during normal operation.

[0013] When filling the liquid, the filling switch valve is opened, and the solution is diverted from the liquid inlet supply pipe into multiple filling supply pipes, which can reduce the structure of supplying solution to the filling supply pipes; after the filling is completed and normal work begins, the filling switch valve is closed, and the solution cannot enter the filling supply pipe from the liquid inlet supply pipe. The solution enters the slow-flow supply pipe and enters the spray flow channel to work normally.

[0014] Preferably, a slow-flow switch valve is provided on the slow-flow liquid supply pipe, and the slow-flow switch valve is used to open during normal operation.

[0015] Preferably, the length-to-diameter ratio of the slow-flow liquid supply tube is 10:1-60:1.

[0016] Preferably, the ratio of the cross-sectional area S2 of the slow-flow liquid supply pipe to the cross-sectional area S1 of the liquid spray channel is 1:2-1:100. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the nozzle assembly, the slow-flow liquid supply pipe and the liquid-filling liquid supply pipe of the utility model.

[0020] In the accompanying drawings: 1-nozzle assembly, 11-base, 111-liquid spray channel, 12-nozzle, 2-slow-flow liquid supply pipe, 21-slow-flow switch valve, 3-liquid inlet supply pipe, 4-liquid filling supply pipe, 41-liquid filling switch valve.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of technical personnel in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] like Figure 1 and Figure 2 As shown, a liquid separation spinning system includes a nozzle assembly 1, a slow-flow liquid supply pipe 2 and a liquid inlet supply pipe 3.

[0026] There are multiple nozzle assemblies 1, where multiple means more than two. The nozzle assembly 1 includes a base 11, and multiple nozzles 12 are connected to the base 11. A liquid spray channel 111 is provided in the base 11. The multiple nozzles 12 are all connected to the liquid spray channel 111. A spray hole is provided in the middle of the nozzle 12, and the solution is sprayed out from the spray hole.

[0027] There are multiple slow-flow liquid supply pipes 2, one end of which is connected to multiple bases 11 one by one and communicates with corresponding liquid spray channels 111. The cross-sectional area S2 of the slow-flow liquid supply pipe 2 is smaller than the cross-sectional area S1 of the liquid spray channel 111.

[0028] The liquid inlet supply pipe 3 is used to supply liquid to multiple slow-flow liquid supply pipes 2 and multiple nozzle assemblies 1. The liquid inlet supply pipe 3 can be connected to a liquid supply pump to realize liquid supply. The other ends of the multiple slow-flow liquid supply pipes 2 are all connected to the liquid inlet supply pipe 3. The cross-sectional area S2 of the slow-flow liquid supply pipe 2 is smaller than the cross-sectional area S3 of the liquid inlet supply pipe 3.

[0029] The solution is divided from the liquid inlet supply pipe 3 into multiple slow-flow supply pipes 2, and the multiple slow-flow supply pipes 2 are connected one by one to the bases 11 in the multiple nozzle assemblies 1. The solution enters the spray channel 111 in the base 11 and is then divided into multiple nozzles 12 for spraying. Since the cross-sectional area S2 of the slow-flow liquid supply pipe 2 is smaller than the cross-sectional area S1 of the liquid spray channel 111, and the cross-sectional area S2 of the slow-flow liquid supply pipe 2 is smaller than the cross-sectional area S3 of the liquid inlet supply pipe 3, when the solution enters the slow-flow liquid supply pipe 2 from the liquid inlet supply pipe 3, the slow-flow liquid supply pipe 2 will slow down the flow rate of the solution, so that the flow rate of the solution in the multiple slow-flow liquid supply pipes 2 is more uniform, and when the solution enters the liquid spray channel 111, the solution in the liquid spray channel 111 will buffer the solution flowing in from the slow-flow liquid supply pipe 2, so that the solution entering the liquid spray channel 111 has less influence on the solution flow rate at the multiple nozzles 12 at different positions, thereby improving the uniformity of the liquid spray amount of the multiple nozzle assemblies 1 and the multiple nozzles 12.

[0030] In some specific embodiments, the liquid separation spinneret system also includes a plurality of liquid filling and supply tubes 4, one ends of the plurality of liquid filling and supply tubes 4 are connected one by one to a plurality of bases 11 and are connected to corresponding liquid spray channels 111, and a cross-sectional area S4 of the liquid filling and supply tubes 4 is greater than a cross-sectional area S2 of the slow-flow liquid supply tube 2.

[0031] Before the initial operation of the equipment, the liquid spray channel 111 needs to be filled with solution. However, due to the small cross-sectional area of ​​the slow-flow liquid supply tube 2, the filling time may be longer. Therefore, multiple liquid filling supply tubes 4 are arranged in this scheme. The multiple liquid filling supply tubes 4 are connected one by one to the bases 11 in the multiple nozzle assemblies 1. When filling, the solution can be filled into the liquid spray channel 111 through the liquid filling supply tube 4. Since the cross-sectional area S4 of the liquid filling supply tube 4 is larger than the cross-sectional area S2 of the slow-flow liquid supply tube 2, the flow rate of the solution in the liquid filling supply tube 4 is faster, which can speed up the filling speed and improve the production efficiency.

[0032] Furthermore, the other ends of the plurality of filling supply pipes 4 are connected to the liquid inlet supply pipe 3, and a filling switch valve 41 is provided on the filling supply pipe 4. The filling switch valve 41 is used to open when initially filling the solution into the spray channel 111 and to close during normal operation.

[0033] When filling, the filling switch valve 41 is opened, and the solution is divided from the liquid inlet supply pipe 3 into multiple filling supply pipes 4, which can reduce the structure of supplying solution to the filling supply pipe 4; after the filling is completed and normal work begins, the filling switch valve 41 is closed, and the solution cannot enter the filling supply pipe 4 from the liquid inlet supply pipe 3. The solution enters the slow-flow supply pipe 2 and enters the liquid spraying channel 111 to work normally. In other embodiments, the filling supply pipe 4 can be filled with solution through another structure.

[0034] Furthermore, a slow flow switch valve 21 is provided on the slow flow liquid supply pipe 2, and the slow flow switch valve 21 is used to be opened during normal operation. The slow flow switch valve 21 is opened during normal operation, and the solution can pass through the slow flow liquid supply pipe 2, and the slow flow liquid supply pipe 2 is closed during filling.

[0035] In some specific embodiments, the length-to-diameter ratio of the slow-flow liquid supply tube 2 is 10:1-60:1, where the length-to-diameter ratio is the ratio of the length to the diameter of the slow-flow liquid supply tube 2. The slow-flow effect of the slow-flow liquid supply tube 2 within this ratio range is better, and the flow rate of the solution in the plurality of slow-flow liquid supply tubes 2 can be effectively made more uniform.

[0036] In some specific embodiments, the ratio of the cross-sectional area S2 of the slow-flow liquid supply pipe 2 to the cross-sectional area S1 of the liquid spraying channel 111 is 1:2-1:100. Within this ratio range, the solution in the liquid spraying channel 111 has a better buffering effect on the solution flowing from the slow-flow liquid supply pipe 2, further reducing the influence of the solution entering the liquid spraying channel 111 on the solution flow rate at multiple nozzles 12 at different positions.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A liquid separation spinning system, characterized in that: include: A nozzle assembly (1), wherein the number of the nozzle assemblies (1) is plural, the nozzle assembly (1) comprising a base (11), a plurality of nozzles (12) being connected to the base (11), a liquid spraying channel (111) being provided in the base (11), and the plurality of nozzles (12) being connected to the liquid spraying channel (111); A slow-flow liquid supply pipe (2), wherein the number of the slow-flow liquid supply pipes (2) is plural, one end of each of the plurality of slow-flow liquid supply pipes (2) is connected to the plurality of bases (11) in a one-to-one correspondence and communicated with the corresponding liquid spraying flow channels (111), and a cross-sectional area S2 of the slow-flow liquid supply pipe (2) is smaller than a cross-sectional area S1 of the liquid spraying flow channel (111); A liquid inlet supply pipe (3), the other ends of the plurality of slow-flow supply pipes (2) are all connected to the liquid inlet supply pipe (3), and the cross-sectional area S2 of the slow-flow supply pipe (2) is smaller than the cross-sectional area S3 of the liquid inlet supply pipe (3).

2. The liquid separation spinning system according to claim 1, characterized in that: The liquid separation spinneret system further comprises a plurality of liquid filling and supply pipes (4), one end of each of the plurality of liquid filling and supply pipes (4) being connected to the plurality of bases (11) one by one and communicating with the corresponding liquid spraying channels (111), and a cross-sectional area S4 of the liquid filling and supply pipes (4) being greater than a cross-sectional area S2 of the slow-flow liquid supply pipe (2).

3. The liquid separation spinning system according to claim 2, characterized in that: The other ends of the plurality of liquid filling supply pipes (4) are connected to the liquid inlet supply pipe (3), and the liquid filling supply pipes (4) are provided with a liquid filling switch valve (41), and the liquid filling switch valve (41) is used to open when initially filling the liquid injection channel (111) with solution and to close during normal operation.

4. The liquid separation spinning system according to claim 3, characterized in that: The slow-flow liquid supply pipe (2) is provided with a slow-flow switch valve (21), and the slow-flow switch valve (21) is used to open during normal operation.

5. The liquid separation spinning system according to claim 1, characterized in that: The length-to-diameter ratio of the slow-flow liquid supply pipe (2) is 10:1-60:

1.

6. The liquid separation spinning system according to claim 1, characterized in that: The ratio of the cross-sectional area S2 of the slow-flow liquid supply pipe (2) to the cross-sectional area S1 of the liquid spray channel (111) is 1:2-1:100.

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