Cooling water system suitable for vortex spinning technology

Abstract

The utility model belongs to the technical field of resource recycling in the vortex spinning technology in spinning. A cooling water system suitable for a vortex spinning process is arranged in a constant-temperature compressed air preparation system, and a continuous circulation passage for cooling water to cool the air compressor and recycle the cooling water is formed among a water storage tank, a cooling water inlet pipe I, the air compressor, a water return pipe I, a cooling tower and a water return pipe II. A continuous circulation channel for cooling water cooling and freezing dryer recycling is formed among the water storage pond, the cooling water inlet pipe II, the freezing dryer, the water return branch pipe I, the water return pipe I, the cooling tower and the water return pipe II, the condensate water collecting tank is connected with a temporary storage tank through a water return pipe III, the temporary storage tank is connected with the water storage pond through a water return pipe IV, and the water storage pond is connected with a water supplementing pipe. The water supplementing pipe is provided with an agent dissolving box used for regulating and controlling the water quality in the water storage pond. Effective utilization of water resources is achieved, dynamic balance of a water source in the water storage pond is guaranteed, and then stability of the working condition environment of the constant-temperature compressed air preparation system is achieved.

Description

Technical Field

[0001] The utility model relates to a cooling water system, in particular to a cooling water system suitable for the vortex spinning process, belonging to the technical field of resource recycling in the vortex spinning process of textile spinning. Background Art

[0002] Vortex spinning is a new spinning method developed after rotor spinning and self-twist spinning. It has the characteristics of high speed, high output, constant quality, and high automation, and is the development trend of the future spinning industry. Vortex spinning uses compressed air as the power source for yarn forming, and uses compressed air to guide cotton fibers into the spiral spinning box to form a wrapped yarn. Strict requirements are imposed on the temperature and humidity of the compressed air.

[0003] In the vortex spinning process, when the temperature of the spinning compressed air is too high, it will lead to a decrease in the moisture regain of the yarn, and then the yarn will be dry and have more hairiness; when the temperature of the spinning compressed air is too low, the yarn will be brittle and easy to break, and the hairiness will increase, which will affect the yarn quality. Therefore, it is necessary to perform real-time constant temperature control on the compressed air (for example: CN220183464U, a constant temperature control system for compressed air in vortex spinning). When the ambient temperature changes, the cooling system of the compressed air should be adjusted in time to control the temperature of the spinning compressed air. Finally, it is ensured that there is no difference in the yarn quality in the same batch of yarns (even the same roll of yarns) in the textile factory, reducing the fluctuations in spinning efficiency and output, and facilitating downstream process control, etc.

[0004] However, the current management level of the cooling water in the cooling system is low, resulting in low utilization rate of the cooling water and waste of water resources; or even if the cooling water is recycled, it is impossible to effectively ensure the dynamic balance of the water source in the storage tank, which will affect the operation of the constant temperature control system of the compressed air.

[0005] Therefore, a cooling water system suitable for the vortex spinning process, used in the constant temperature compressed air preparation system, realizing the rational use of water resources, and ensuring the dynamic balance of the water source in the storage tank is needed. Summary of the Invention

[0006] In order to solve the problems of low utilization rate of the cooling water and waste of water resources in the constant temperature compressed air preparation system in the vortex spinning production line, a cooling water system suitable for the vortex spinning process is proposed. Among them, through the setting and reasonable layout of each pipeline, temporary storage tank, chemical agent dissolution tank, etc., not only the effective utilization of water resources is realized, but also the dynamic balance of the water source in the storage tank is ensured, and then the stability of the working condition environment of the constant temperature compressed air preparation system is realized.

[0007] In order to achieve the above technical purpose, the following technical solutions are proposed:

[0008] A cooling water system applicable to the vortex spinning process is provided in a constant-temperature compressed air preparation system. The compressed air preparation system includes an air compressor, a refrigerated dryer, and a filter. The air compressor is provided with an air inlet, and the air outlet of the air compressor is connected to the air inlet of the refrigerated dryer. The air outlet of the refrigerated dryer is connected to the air inlet of the filter. The air outlet of the filter is connected to a constant-temperature compressed air inlet pipe, and the constant-temperature compressed air inlet pipe extends to the vortex spinning workshop.

[0009] The cooling water system includes a water storage tank, a cooling tower, and a temporary storage tank. The water storage tank is connected to the water inlet of the air compressor through a cooling water inlet pipe Ⅰ. The water outlet of the air compressor is connected to the water inlet of the cooling tower through a return water pipe Ⅰ. The water outlet of the cooling tower is connected to the water storage tank through a return water pipe Ⅱ. A continuous circulation path for cooling the air compressor with cooling water and then recycling is formed among the water storage tank, the cooling water inlet pipe Ⅰ, the air compressor, the return water pipe Ⅰ, the cooling tower, and the return water pipe Ⅱ.

[0010] The water storage tank is also connected to the water inlet of the refrigerated dryer through a cooling water inlet pipe Ⅱ. The water outlet of the refrigerated dryer is communicated with the return water pipe Ⅰ through a return water branch pipe Ⅰ. A continuous circulation path for cooling the refrigerated dryer with cooling water and then recycling is formed among the water storage tank, the cooling water inlet pipe Ⅱ, the refrigerated dryer, the return water branch pipe Ⅰ, the return water pipe Ⅰ, the cooling tower, and the return water pipe Ⅱ.

[0011] The condensate collection tank at the bottom of the air compressor is connected to the temporary storage tank through a return water pipe Ⅲ. The condensate collection tank at the bottom of the refrigerated dryer is communicated with the return water pipe Ⅲ through a return water branch pipe Ⅱ. A cooler for cooling the condensate is provided on the return water pipe Ⅲ. More specifically, the cooler is provided between the connection point of the return water branch pipe Ⅱ and the return water pipe Ⅲ and the temporary storage tank. This setting cools the condensate discharged from both the air compressor and the refrigerated dryer, thereby ensuring that the condensate entering the temporary storage tank is below 20 °C, facilitating its reuse in the water storage tank after temporary storage. At the same time, during the reuse process, the damage to the related equipment caused by the condensate is reduced, that is, the service life of the corresponding equipment is improved, etc.

[0012] The temporary storage tank is connected to the water storage tank through a return water pipe Ⅳ. The water storage tank is connected with a makeup water pipe, and a chemical agent dissolution tank for regulating the water quality in the water storage tank is provided on the makeup water pipe.

[0013] Further, a water quality detector is provided on the water storage tank, and the water quality detector is connected to a controller for the cooling water system; a metering pump is provided on the makeup water pipe, and the metering pump is connected to the controller.

[0014] Further, a level gauge Ⅰ is provided on the upper part of the temporary storage tank, and a level gauge Ⅱ is provided on the lower part of the temporary storage tank. Both the level gauge Ⅰ and the level gauge Ⅱ are connected to the controller; a transfer pump Ⅰ is provided on the return water pipe Ⅳ, and the transfer pump Ⅰ is connected to the controller.

[0015] Further, the chemical agent dissolution tank is connected with a scale and corrosion inhibitor feed pipe, a bactericide feed pipe, and / or a pH regulator feed pipe.

[0016] Further, an overflow port is provided at the upper part of the temporary storage tank, and a sewage discharge port is provided at the bottom of the temporary storage tank.

[0017] Further, a pressure relief valve, a delivery pump II, a check valve and a pressure gauge are provided on the cooling water inlet pipe I.

[0018] Further, a flow meter and an intake valve are provided between the air compressor and the cold dryer.

[0019] In this technical solution, for the air compressor: the main purpose of introducing cooling water is to cool the compressed air in the air compressor. At the same time, the first water removal of the compressed air is realized, and the water removed is the condensed water discharged from the air compressor.

[0020] For the cold dryer: the main purpose of introducing cooling water is to cool the heat exchanger in the cold dryer, and the Freon inside the heat exchanger realizes secondary cooling and water removal of the compressed air (such as: 40°C) coming from the air compressor (the water removed is the condensed water discharged from the cold dryer).

[0021] In this technical solution, the positional relationships such as "in", "on", "between", "bottom", "upper part", "lower part", etc. are defined according to the actual use state, which are conventional terms in this technical field and also the conventional terms for those skilled in the art during actual use.

[0022] Adopting this technical solution, the beneficial technical effects brought are as follows:

[0023] First, in the present utility model, a continuous circulation path of cooling water cooling the air compressor and then being recycled is formed among the water storage tank, the cooling water inlet pipe I, the air compressor, the return water pipe I, the cooling tower and the return water pipe II. A continuous circulation path of cooling water cooling the cold dryer and then being recycled is formed among the water storage tank, the cooling water inlet pipe II, the cold dryer, the return water branch pipe I, the return water pipe I, the cooling tower and the return water pipe II. This arrangement realizes the recycling of the cooling water in the water storage tank, improves the rational utilization of water resources, reduces waste of water, equipment, etc. At the same time, it saves the space for equipment installation and layout, etc.

[0024] Second, in the present utility model, the condensate collection tank is connected to the temporary storage tank through the return water pipe III, and the temporary storage tank is connected to the water storage tank through the return water pipe IV, that is, the condensed water formed during the cooling process of the air compressor and the cold dryer is recycled. That is, on the basis of the existing equipment, the source of cooling water supplement is effectively broadened.

[0025] III. In the present utility model, through the settings of the return water pipe III, the return water branch pipe II, the temporary storage tank, the return water pipe IV, the makeup water pipe, etc., the dynamic balance of the water source in the water storage tank is effectively ensured (the recovery of condensate water and the addition of makeup water effectively make up for the loss during the cooling water recovery process). Among them, a chemical agent dissolution tank is provided on the makeup water pipe, and this setting is used to regulate the water quality in the water storage tank, that is, to ensure the physical and chemical indexes of the cooling water, so as to better utilize the cooling water, and further ensure the stability and sustainability of the constant temperature compressed air preparation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic flow chart related to the present utility model;

[0027] Figure 2 is a control diagram related to the controller in the present utility model;

[0028] In the figure, 1. air compressor, 2. refrigerant dryer, 3. filter, 4. constant temperature compressed air inlet pipe, 5. water storage tank, 6. cooling tower, 7. temporary storage tank, 71. level gauge I, 72. level gauge II, 73. overflow port, 74. sewage outlet, 8. cooling water inlet pipe I, 9. return water pipe I, 10. return water pipe II, 11. cooling water inlet pipe II, 12. return water branch pipe I, 13. return water pipe III, 14. return water branch pipe II, 15. return water pipe IV, 16. controller, 17. flowmeter, 18. intake valve, 19. cooler, 20. pressure relief valve, 21. delivery pump II, 22. check valve, 23. pressure gauge, 24. delivery pump I, 25. makeup water pipe, 26. water quality detector, 27. metering pump, 28. chemical agent dissolution tank, 29. scale and corrosion inhibitor feed pipe, 30. bactericide feed pipe, 31. pH regulator feed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0030] Embodiment 1

[0031] This embodiment provides: It is arranged in the constant temperature compressed air preparation system. The compressed air preparation system includes an air compressor 1, a refrigerant dryer 2, and a filter 3. An air inlet is provided on the air compressor 1. The air outlet on the air compressor 1 is connected to the air inlet on the refrigerant dryer 2. The air outlet on the refrigerant dryer 2 is connected to the air inlet on the filter 3. A constant temperature compressed air inlet pipe 4 is connected to the air outlet on the filter 3 (for example, the compressed air is about 25°C), and the constant temperature compressed air inlet pipe 4 extends to the vortex spinning workshop;

[0032] As Figure 1 shown, the cooling water system includes a storage tank 5 (wherein, the temperature of the cooling water medium is about 36°C, and the temperature volume is 350 m 3 ), a cooling tower 6 and a temporary storage tank 7 (such as: the volume is 5 m 3 ). The storage tank 5 is connected to the water inlet of the air compressor 1 through the cooling water inlet pipe I 8 (wherein, the temperature of the cooling water medium is about 36°C). The water outlet of the air compressor 1 is connected to the water inlet of the cooling tower 6 through the return pipe I 9 (wherein, the temperature of the cooling water medium is about 45°C). The water outlet of the cooling tower 6 is connected to the storage tank 5 through the return pipe II 10 (wherein, the temperature of the cooling water medium is about 36°C). A continuous circulation path for cooling the cooling water of the air compressor and then recycling it is formed among the storage tank 5, the cooling water inlet pipe I 8, the air compressor 1, the return pipe I 9, the cooling tower 6 and the return pipe II 10;

[0033] The storage tank 5 is also connected to the water inlet of the refrigerant dryer 2 through the cooling water inlet pipe II 11. The water outlet of the refrigerant dryer 2 is communicated with the return pipe I 9 through the return water branch pipe I 12. A continuous circulation path for cooling the cooling water of the refrigerant dryer 2 and then recycling it is formed among the storage tank 5, the cooling water inlet pipe II 11, the refrigerant dryer 2, the return water branch pipe I 12, the return pipe I 9, the cooling tower 6 and the return pipe II 10;

[0034] The condensate collection tank at the bottom of the air compressor 1 is connected to the temporary storage tank 7 through the return pipe III 13 (wherein, the temperature of the cooling water medium is about 45°C). The condensate collection tank at the bottom of the refrigerant dryer 2 is communicated with the return pipe III 13 through the return water branch pipe II 14. A cooler 19 for cooling the condensate water is provided on the return pipe III 13. More specifically, the cooler 19 is arranged between the connection point of the return water branch pipe II 14 and the return pipe III 13 and the temporary storage tank 7. This setting cools the condensate water discharged from both the air compressor 1 and the refrigerant dryer 2, thereby ensuring that the condensate water entering the temporary storage tank 7 is lower than 20°C, facilitating reuse in the storage tank 5 after temporary storage. At the same time, during the reuse process, damage to the involved equipment caused by the condensate water is reduced, that is, the service life of the corresponding equipment is improved, etc.;

[0035] The temporary storage tank 7 is connected to the storage tank 5 through the return pipe IV 15. The storage tank 5 is connected with a makeup water pipe 25, and a chemical agent dissolution tank 28 for regulating the water quality in the storage tank 5 is provided on the makeup water pipe 25. Among them, the chemical agent dissolution tank 28 is connected with a scale and corrosion inhibitor feed pipe 29, a bactericide feed pipe 30 and / or a pH regulator feed pipe 31. Specifically, corresponding chemical agents can be added according to the detected water quality in the storage tank 5. Randomly take the makeup water of the makeup water pipe 25 for detection, and the involved water quality indexes are shown in Table 1 below;

[0036] Table 1

[0037]

[0038] By adopting this cooling water system, the rational utilization of water resources can be effectively improved, waste of water, equipment, etc. can be reduced, and at the same time, the space for equipment installation and layout can be saved. Among them, the cooling tower 6 cools the cooling water (about 45°C) discharged from the air compressor 1 and the refrigerant dryer 2. However, during this cooling process, part of the cooling water is lost to the outside air in the form of water vapor (water mist), and thus part of the recovered cooling water is lost. Therefore, in combination with the current situation of this cooling water system, on the one hand, the condensed water formed during the cooling process of the air compressor 1 and the refrigerant dryer 2 is recovered and reused, that is, on the basis of the existing equipment, the source of cooling water replenishment is effectively broadened; on the other hand, by adding tap water / process water, the dynamic balance of the water source in the storage tank 5 is ensured. On the basis of adding the water source, the regulation of the water quality in the storage tank 5 is also realized to ensure the physical and chemical indexes of the cooling water / circulating water (Table 2 below), so as to better utilize the cooling water, and thus ensure the stability and sustainability of the constant-temperature compressed air preparation process.

[0039] Table 2

[0040]

[0041] Example 2

[0042] On the basis of Example 1, in order to ensure that this cooling water system can better cooperate with the constant-temperature compressed air preparation system and improve the stability and sustainability of the constant-temperature compressed air preparation process, it is further defined that:

[0043] As Figure 2 shown, a water quality detector 26 is provided on the storage tank 5, and the water quality detector 26 is connected to the controller 16 for the cooling water system; a metering pump 27 is provided on the makeup water pipe 25, and the metering pump 27 is connected to the controller 16; a level gauge I 71 is provided on the upper part of the temporary storage tank 7, and a level gauge II 72 is provided on the lower part of the temporary storage tank 7. Both the level gauge I 71 and the level gauge II 72 are connected to the controller 16; a transfer pump I 24 is provided on the return water pipe IV 15, and the transfer pump I 24 is connected to the controller 16. Among them, the transfer pump I 24 provides power for the recovered water entering the storage tank 5 to ensure that it can smoothly and stably enter the storage tank 5.

[0044] The controller 16 realizes the control of makeup water and recovered condensed water, ensures the dynamic balance of the water source in the storage tank 5, and at the same time, controls the water quality of the water source in the storage tank 5 to ensure that it meets the requirements of recycling.

[0045] Example 3

[0046] On the basis of Examples 1-2, in this example, the temporary storage tank 7 is further defined to further illustrate this technical solution.

[0047] An overflow port 73 is provided on the top of the temporary storage tank 7, and the overflow port 73 can be directly connected to the ditch; a sewage outlet 74 is provided at the bottom of the temporary storage tank 7, and the temporary storage tank 7 can be cleaned regularly to ensure that the water source entering the water storage tank 5 is clean, and finally it can be better used in subsequent air compressors 1 and cold dryers 2.

[0048] Example 4

[0049] On the basis of Examples 1-3, this example further limits the delivery of cooling water into the air compressor 1 to further illustrate the technical solution.

[0050] The cooling water inlet pipe Ⅰ8 is provided with a pressure relief valve 20, a delivery pump Ⅱ 21, a check valve 22 and a pressure gauge 23 to ensure that the cooling water enters the air compressor 1 stably, smoothly and controllably.

[0051] Example 5

[0052] On the basis of Example 1, this example further limits the constant temperature compressed air preparation system and demonstrates its application scenarios to ensure the adaptability of the cooling water system and, ultimately, the stability of the vortex spinning process.

[0053] A flow meter 17 and an air intake valve 18 are provided between the air compressor 1 and the cold dryer 2 .

Claims

1. A cooling water system applicable to the vortex spinning process, characterized in that: It is arranged in a constant-temperature compressed air preparation system. The compressed air preparation system includes an air compressor (1), a refrigerated dryer (2), and a filter (3). The air compressor (1) is provided with an air inlet, and the air outlet on the air compressor (1) is connected to the air inlet on the refrigerated dryer (2). The air outlet on the refrigerated dryer (2) is connected to the air inlet on the filter (3). The air outlet on the filter (3) is connected to a constant-temperature compressed air inlet pipe (4), and the constant-temperature compressed air inlet pipe (4) extends to the vortex spinning workshop; The cooling water system includes a water storage tank (5), a cooling tower (6), and a temporary storage tank (7). The water storage tank (5) is connected to the water inlet on the air compressor (1) through a cooling water inlet pipe I (8). The water outlet on the air compressor (1) is connected to the water inlet on the cooling tower (6) through a return water pipe I (9). The water outlet on the cooling tower (6) is connected to the water storage tank (5) through a return water pipe II (10). A continuous circulation path for cooling the air compressor with cooling water and then recycling is formed among the water storage tank (5), the cooling water inlet pipe I (8), the air compressor (1), the return water pipe I (9), the cooling tower (6), and the return water pipe II (10); The water storage tank (5) is also connected to the water inlet on the refrigerated dryer (2) through a cooling water inlet pipe II (11). The water outlet on the refrigerated dryer (2) is communicated with the return water pipe I (9) through a return water branch pipe I (12). A continuous circulation path for cooling the refrigerated dryer (2) with cooling water and then recycling is formed among the water storage tank (5), the cooling water inlet pipe II (11), the refrigerated dryer (2), the return water branch pipe I (12), the return water pipe I (9), the cooling tower (6), and the return water pipe II (10); The condensate collection tank at the bottom of the air compressor (1) is connected to the temporary storage tank (7) through a return water pipe III (13). The condensate collection tank at the bottom of the refrigerated dryer (2) is communicated with the return water pipe III (13) through a return water branch pipe II (14). A cooler (19) for cooling the condensate is provided on the return water pipe III (13); The temporary storage tank (7) is connected to the water storage tank (5) through a return water pipe IV (15). The water storage tank (5) is connected with a makeup water pipe (25), and a chemical agent dissolution tank (28) for regulating the water quality in the water storage tank (5) is provided on the makeup water pipe (25).

2. The cooling water system applicable to the vortex spinning process according to claim 1, wherein: A water quality detector (26) is provided on the water storage tank (5), and the water quality detector (26) is connected to a controller (16) for the cooling water system; A metering pump (27) is provided on the makeup water pipe (25), and the metering pump (27) is connected to the controller (16).

3. The cooling water system applicable to the vortex spinning process according to claim 2, wherein: A level gauge I (71) is provided at the upper part of the temporary storage tank (7), and a level gauge II (72) is provided at the lower part of the temporary storage tank (7). Both the level gauge I (71) and the level gauge II (72) are connected to the controller (16); A delivery pump I (24) is provided on the return water pipe IV (15), and the delivery pump I (24) is connected to the controller (16).

4. The cooling water system applicable to the vortex spinning process according to any one of claims 1-3, characterized in that: The chemical agent dissolution tank (28) is connected with a scale and corrosion inhibitor feed pipe (29), a bactericide feed pipe (30), and / or a pH regulator feed pipe (31).

5. The cooling water system applicable to the vortex spinning process according to claim 1, characterized in that: The cooler (19) is arranged between the connection point of the return water branch pipe II (14) and the return water pipe III (13) and the temporary storage tank (7).

6. The cooling water system applicable to the vortex spinning process according to claim 1, wherein: An overflow port (73) is provided at the upper part of the temporary storage tank (7), and a sewage discharge port (74) is provided at the bottom of the temporary storage tank (7).

7. The cooling water system applicable to the vortex spinning process according to claim 1, characterized in that: A pressure relief valve (20), a transfer pump II (21), a check valve (22) and a pressure gauge (23) are provided on the cooling water inlet pipe I (8).

8. The cooling water system applicable to the vortex spinning process according to claim 1, wherein: A flow meter (17) and an intake valve (18) are provided between the air compressor (1) and the cold dryer (2).

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