Threaded detachable spinning nozzle and spinning device

Abstract

The utility model provides a thread type detachable spinning nozzle and a spinning device, and belongs to the technical field of sewage treatment equipment, the thread type detachable spinning nozzle comprises a spinning main body, an assembly channel which is arranged along the axis direction of the spinning main body and penetrates through two ends of the spinning main body, and a feed liquid hole which is communicated with the assembly channel and is arranged on the spinning main body, a channel between the feeding liquid hole and one end of the assembly channel is used as a membrane product forming hole; one end of the spinneret core tube is inserted into the spinneret main body along the assembly channel and is directly inserted into the membrane product forming hole, the other end of the spinneret core tube is detachably connected with the spinneret main body, and a supporting tube channel penetrating through the two ends of the spinneret core tube is arranged in the axis direction of the spinneret core tube. Due to the fact that the spinning core tube is detachably connected with the spinning body, after the spinning nozzle is used for a period of time, the spinning core tube can be detached from the spinning body to be cleaned, and residual feed liquid on the surface of the spinning core tube can be reliably cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment and relates to a spinneret, in particular to a threaded detachable spinneret and a spinneret device. Background Art

[0002] Hollow fiber membrane is the core component of water treatment equipment. It is an important new material used in reverse osmosis membrane, microfiltration membrane, nanofiltration membrane and ultrafiltration membrane. It is gradually being used more and more widely in environmental water treatment and other fields. With the rapid development of environmental water treatment, the quality and performance requirements of hollow fiber membranes are getting higher and higher. At present, the process manufacturing forms of hollow fiber membranes mainly include homogeneous hollow fiber membranes, braided tube reinforced hollow fiber membranes and long fiber reinforced hollow fiber membranes. Compared with traditional homogeneous hollow fiber membranes, braided tube reinforced hollow fiber membranes have higher mechanical strength, can withstand higher pressure, and are suitable for more working environments. It solves the problem that traditional homogeneous hollow fiber membranes are prone to broken wires during the impact, compression and frequent backwashing of long-term high-pressure water flow.

[0003] A Chinese patent (CN106435788A) discloses a novel porous hollow fiber membrane spinning device, in which a core liquid tube and a spinneret body are integrally arranged in the spinning device, and an outer tube wall of the core liquid tube located at one end of the spinneret forming hole is located in a liquid injection hole. When liquid is injected into the liquid injection hole, the liquid will remain on the outer tube wall of the core liquid tube. After long-term use, the spinneret forming hole may be blocked. Therefore, it needs to be cleaned after a period of use. However, since the core liquid tube and the spinneret body are integrally arranged, it is inconvenient to clean the core liquid tube and it cannot be cleaned. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a spinneret capable of realizing reliable cleaning.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a threaded detachable spinneret, comprising:

[0006] A spinneret body is provided with an assembly channel penetrating both ends of the spinneret body along the axis direction of the spinneret body, and a feed liquid hole connected to the assembly channel is provided on the spinneret body, wherein the channel between the feed liquid hole and one end of the assembly channel serves as a membrane product forming hole;

[0007] One end of the spinneret core tube is inserted into the spinneret body along the assembly channel and directly inserted into the film product forming hole, and the other end forms a detachable connection with the spinneret body, and a support tube channel is arranged along the axial direction of the spinneret core tube and passes through both ends of the spinneret core tube.

[0008] In the above-mentioned threaded detachable spinneret, the spinneret core tube and the spinneret body are threadedly matched, and an external thread is arranged on the outer wall of the spinneret core tube, and an internal thread threadedly matched with the external thread is arranged on the inner wall of the assembly channel of the spinneret body, wherein a tool hole connected with the support tube channel is arranged at one end of the spinneret core tube that is threadedly matched with the spinneret body.

[0009] In the above-mentioned threaded detachable spinneret, a stepped portion is provided on the outer wall of the spinneret core tube, and a step is provided in the assembly channel. When the spinneret core tube is connected to the spinneret body, the stepped portion and the step form an abutment fit.

[0010] In the above-mentioned threaded detachable spinneret, one end of the spinneret core tube located in the membrane product forming hole is configured with a constricted opening, so that a gap is formed between the outer wall of the spinneret core tube and the inner wall of the assembly channel, wherein the feed liquid injected into the feed liquid hole can be sprayed out of the spinneret along the gap.

[0011] In the above-mentioned threaded detachable spinneret, the feed liquid hole is located on the surface of the spinneret body and is arranged along the circumference of the spinneret body, wherein the liquid inlet direction of the feed liquid hole is perpendicular to the axial direction of the spinneret body.

[0012] In the above-mentioned threaded detachable spinneret, a first annular groove is arranged on the spinneret body along the circumference of the spinneret body, and the first annular groove is connected with the feed liquid hole, wherein the first annular groove serves as a feed liquid groove.

[0013] In the above-mentioned threaded detachable spinneret, a second annular groove and a third annular groove are also arranged on the spinneret body along the circumference of the spinneret body, and the second annular groove and the third annular groove are respectively located on both sides of the first annular groove, wherein the second annular groove and the third annular groove serve as sealing ring grooves for installing the sealing ring.

[0014] The utility model also provides a spinning device, comprising:

[0015] A spinneret is provided, and an assembly cavity for assembling the spinneret is opened along the thickness direction of the spinneret, wherein a feed liquid channel is arranged on the spinneret, and the feed liquid channel is communicated with the feed liquid hole.

[0016] In the above-mentioned spinning device, the spinneret is a single-hole spinneret or a multi-hole spinneret.

[0017] In the above-mentioned spinning device, the spinneret and the spinneret plate are threadedly matched, and an external thread is arranged on the outer wall of the spinneret at one end away from the membrane product forming hole, wherein an internal thread threadedly matched with the external thread is arranged on the wall of the assembly cavity of the spinneret plate, and a tool boss is provided on the end of the spinneret located at the membrane product forming hole as a tool for disassembling and assembling the spinneret.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a threaded detachable spinneret. Since the spinneret core tube and the spinneret body are detachably connected, after the spinneret has been used for a period of time, the spinneret core tube can be detached from the spinneret body for cleaning, thereby being able to reliably clean the residual liquid on the surface of the spinneret core tube, thereby improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a cross-sectional view of a threaded detachable spinneret.

[0021] Figure 2 It is a cross-sectional view of a spinneret body in a preferred embodiment of the utility model.

[0022] Figure 3 It is a cross-sectional view of a spinneret core tube in a preferred embodiment of the utility model.

[0023] Figure 4 It is a cross-sectional view of a spinning device of the utility model.

[0024] In the figure, 10, spinneret body; 11, assembly channel; 12, feed liquid hole; 13, membrane product forming hole; 14, step; 15, first annular groove; 16, second annular groove; 17, third annular groove; 18, tool boss; 20, spinneret core tube; 21, support tube channel; 22, tool hole; 23, stepped portion; 30, spinneret plate; 31, assembly cavity; 32, feed liquid channel; 33, upper template; 34, lower template. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] like Figures 1 to 3 As shown, the utility model provides a threaded detachable spinneret, comprising:

[0028] A spinneret body 10, an assembly channel 11 penetrating both ends of the spinneret body 10 is provided along the axis direction of the spinneret body 10, and a feed liquid hole 12 connected to the assembly channel 11 is provided on the spinneret body 10, wherein the channel between the feed liquid hole 12 and one end of the assembly channel 11 serves as a film product forming hole 13;

[0029] One end of the spinneret core tube 20 is inserted into the spinneret body 10 along the assembly channel 11 and directly inserted into the membrane product forming hole 13, and the other end forms a detachable connection with the spinneret body 10, and a support tube channel 21 is provided along the axial direction of the spinneret core tube 20 to pass through both ends of the spinneret core tube 20.

[0030] It is worth mentioning that when the support tube is transported forward along the support tube channel 21, the liquid injected from the feed liquid hole 12 is sprayed out along the membrane product forming hole 13 and coated on the outer wall of the support tube, and after gelation, a reinforced hollow fiber membrane is formed in the support tube.

[0031] The utility model provides a threaded detachable spinneret. Since the spinneret core tube 20 is detachably connected to the spinneret body 10, after the spinneret has been used for a period of time, the spinneret core tube 20 can be removed from the spinneret body 10 for cleaning, thereby being able to reliably clean the residual liquid on the surface of the spinneret core tube 20, thereby improving the qualified rate of the product.

[0032] It is worth mentioning that the feed liquid hole 12 is located on the surface of the spinneret body 10 and is arranged along the circumference of the spinneret body 10 , wherein the liquid inlet direction of the feed liquid hole 12 is perpendicular to the axial direction of the spinneret body 10 .

[0033] In addition, one end of the spinneret core tube 20 located in the membrane product forming hole 13 is configured with a constricted opening, so that a gap is formed between the outer wall of the spinneret core tube 20 and the inner wall of the assembly channel 11, wherein the feed liquid injected into the feed liquid hole 12 can be sprayed out from the spinneret along the gap and coated on the outer wall of the support tube, and after gelation, a reinforced hollow fiber membrane is formed in the support tube.

[0034] Preferably, the spinneret core tube 20 and the spinneret body 10 are threadedly matched, and an external thread is provided on the outer wall of the spinneret core tube 20, and an internal thread threadedly matched with the external thread is provided on the inner wall of the assembly channel 11 of the spinneret body 10, wherein a tool hole 22 connected with the support tube channel 21 is provided on one end of the spinneret core tube 20 that is threadedly matched with the spinneret body 10.

[0035] It is worth mentioning that when the spinneret core tube 20 needs to be disassembled, the tool is inserted into the tool hole 22, and then the tool is twisted to remove the spinneret core tube 20 from the spinneret body 10, or the spinneret core tube 20 is screwed into the spinneret body 10 to complete the assembly between the spinneret core tube 20 and the spinneret body 10.

[0036] Further preferably, in order to improve the coaxiality of the spinneret core tube 20 and the spinneret body 10 during assembly, a step portion 23 is provided on the outer wall of the spinneret core tube 20, and a step 14 is provided in the assembly channel 11. When the spinneret core tube 20 is connected to the spinneret body 10, the step portion 23 and the step 14 form an abutment fit, thereby making the gap between the outer wall of one end of the membrane product forming hole 13 on the spinneret core tube 20 and the inner wall of the assembly channel 11 uniform, thereby improving the qualified rate of the product.

[0037] Preferably, a first annular groove 15 is provided on the spinneret body 10 along the circumference of the spinneret body 10 , and the first annular groove 15 is connected with the feed liquid hole 12 , wherein the first annular groove 15 serves as a feed liquid groove.

[0038] Preferably, a second annular groove 16 and a third annular groove 17 are also provided on the spinneret body 10 along the circumference of the spinneret body 10, and the second annular groove 16 and the third annular groove 17 are respectively located on both sides of the first annular groove 15, wherein the second annular groove 16 and the third annular groove 17 serve as sealing ring grooves for installing a sealing ring.

[0039] like Figures 1 to 4 As shown, the utility model also provides a spinning device, including a spinneret 30, and an assembly cavity 31 for assembling a spinneret is opened along the thickness direction of the spinneret 30, wherein a feed liquid channel 32 is arranged on the spinneret 30, and the feed liquid channel 32 is connected to the first annular groove 15 serving as a feed liquid tank.

[0040] It is worth mentioning that the spinneret 30 can be a single-hole spinneret 30 or a multi-hole spinneret 30 .

[0041] It is further pointed out that the spinneret and the spinneret plate 30 are threadedly matched, and an external thread is provided on the outer wall of the spinneret at one end away from the membrane product forming hole 13, wherein an internal thread threadedly matched with the external thread is provided on the wall of the assembly cavity 31 of the spinneret plate 30, and a tool boss 18 is provided on the spinneret at one end of the membrane product forming hole 13 as a spinneret disassembly and assembly tool.

[0042] It is worth mentioning that when the spinneret needs to be disassembled, the tool is sleeved on the tool boss 18, and then the tool is twisted to remove the spinneret from the spinneret plate 30, or the spinneret is assembled to the spinneret plate 30 to complete the assembly between the two.

[0043] It is further pointed out that the spinneret 30 includes an upper template 33 and a lower template 34, and the upper template 33 is connected to one end of the spinneret where the tool hole 22 is located, and the lower template 34 is connected to one end of the spinneret where the membrane product forming hole 13 is located, wherein the joint between the upper template 33 and the lower template 34 is located at the lower groove wall of the second annular groove 16.

[0044] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0045] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A threaded detachable spinneret, characterized in that: include: A spinneret body is provided with an assembly channel penetrating both ends of the spinneret body along the axis direction of the spinneret body, and a feed liquid hole connected to the assembly channel is provided on the spinneret body, wherein the channel between the feed liquid hole and one end of the assembly channel serves as a membrane product forming hole; One end of the spinneret core tube is inserted into the spinneret body along the assembly channel and directly inserted into the film product forming hole, and the other end forms a detachable connection with the spinneret body, and a support tube channel is arranged along the axial direction of the spinneret core tube and passes through both ends of the spinneret core tube.

2. The threaded detachable spinneret according to claim 1, characterized in that: The spinneret core tube and the spinneret body are threadedly matched, and an external thread is arranged on the outer wall of the spinneret core tube, and an internal thread threadedly matched with the external thread is arranged on the inner wall of the assembly channel of the spinneret body, wherein a tool hole connected with the support tube channel is arranged on one end of the spinneret core tube that is threadedly matched with the spinneret body.

3. The threaded detachable spinneret according to claim 1, characterized in that: A stepped portion is arranged on the outer wall of the spinneret core tube, and a step is arranged in the assembly channel. When the spinneret core tube is connected to the spinneret body, the stepped portion and the step form an abutment fit.

4. The threaded detachable spinneret according to claim 1, characterized in that: One end of the spinneret core tube located in the film product forming hole is configured with a constriction, so that a gap is formed between the outer wall of the spinneret core tube and the inner wall of the assembly channel, wherein the feed liquid injected into the feed liquid hole can be sprayed out from the spinneret along the gap.

5. The threaded detachable spinneret according to claim 1, characterized in that: The feed liquid holes are located on the surface of the spinneret body and are arranged along the circumference of the spinneret body, wherein the liquid inlet direction of the feed liquid holes is perpendicular to the axial direction of the spinneret body.

6. The threaded detachable spinneret according to any one of claims 1 to 5, characterized in that: A first annular groove is arranged on the spinneret body along the circumference of the spinneret body, and the first annular groove is connected with the feed liquid hole, wherein the first annular groove serves as a feed liquid groove.

7. The threaded detachable spinneret according to claim 6, characterized in that: A second annular groove and a third annular groove are also provided on the spinneret body along the circumference of the spinneret body, and the second annular groove and the third annular groove are respectively located on both sides of the first annular groove, wherein the second annular groove and the third annular groove serve as sealing ring grooves for installing the sealing ring.

8. A spinning device, characterized in that: include: A spinneret is provided with an assembly cavity for assembling the spinneret according to any one of claims 1 to 7 along the thickness direction of the spinneret, wherein a feed liquid channel is provided on the spinneret, and the feed liquid channel is connected with the feed liquid hole.

9. A spinning device according to claim 8, characterized in that: The spinneret is a single-hole spinneret or a multi-hole spinneret.

10. A spinning device according to claim 8, characterized in that: The spinneret and the spinneret plate are threadedly matched, and an external thread is arranged on the outer wall of the spinneret at one end away from the membrane product forming hole, wherein an internal thread threadedly matched with the external thread is arranged on the wall of the assembly cavity of the spinneret, and the end of the spinneret located at the membrane product forming hole serves as a tool boss for disassembling and assembling the spinneret.

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