Energy-saving water circulation device for high-elasticity polyester yarn production
By designing an energy-saving water circulation system that includes an extraction mechanism and a purification device, the problems of high energy consumption and low heat recovery efficiency of cooling water devices in the production of high-elasticity polyester yarn were solved, achieving efficient waste heat recovery and cooling water recycling, and improving environmental performance.
Patent Information
- Application Number
- CN202520576580.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing cooling water devices used in the production of high-elasticity polyester yarn consume a lot of energy and lack effective recovery of the hot flue gas produced during cooling and the water after heat absorption, resulting in poor heat recovery efficiency.
An energy-saving water circulation device was designed, comprising a base, a waste liquid pool, a cooling tank, a cooling pipe, an extraction mechanism, a purification box, and a heat exchanger. The extraction mechanism draws the cooled heat flow into a serpentine tube for waste heat recovery, and the waste liquid is filtered using a filter screen and an activated carbon filter plate. The filtered liquid is then transported to the heat exchanger for further utilization.
It improves waste heat recovery efficiency, realizes the recycling of cooling water, reduces energy consumption, and enhances environmental protection.
Smart Images

Figure CN223969603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-elasticity polyester filament production technology, specifically to an energy-saving water circulation device for the production of high-elasticity polyester filament. Background Technology
[0002] Currently, the production process of high-elastic polyester yarn requires a large amount of water for cooling. However, the cooling water devices used in the production of high-elastic polyester yarn are energy-intensive, requiring a continuous spraying of fresh cold water for cooling, and there is a lack of reasonable recycling and reuse of the water after heat absorption, resulting in poor energy-saving and environmental protection effects.
[0003] According to Chinese Patent Publication No. CN212051739U, an energy-saving water circulation device for the production of high-elasticity polyester filament is disclosed, which includes a polyester filament cooling zone, spray pipes, spray heads, a water tank, a water pump, and a heat exchanger. The heat exchanger includes a hot water inlet, a cold water outlet, a hot water pipeline, a cold water inlet, a hot water outlet, and a cold water pipeline. The energy-saving water circulation device for the production of high-elasticity polyester filament disclosed in this utility model has the advantages of good cooling effect, water saving, waste heat recovery, high recovery efficiency, energy saving and environmental protection. Although the above-mentioned device can achieve the function of recovering waste heat, it can only recover the cooled water and cannot recover the hot flue gas produced during cooling, resulting in poor heat recovery efficiency. Therefore, an energy-saving water circulation device for the production of high-elasticity polyester filament is proposed to solve the above-mentioned problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an energy-saving water circulation device for the production of high-elasticity polyester yarn, which addresses the shortcomings of the prior art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an energy-saving water circulation device for the production of high-elasticity polyester yarn, including a base, a waste liquid tank fixedly connected to the top of the base, a cooling tank arranged above the waste liquid tank, a cooling pipe arranged above the cooling tank, an external pipe connected to the top of the cooling pipe, an extraction mechanism arranged on the top of the base, the extraction mechanism including an annular pipe, a suction head, and an L-shaped pipe, the annular pipe being arranged above the cooling tank, the suction head being connected to the bottom of the annular pipe, the L-shaped pipe being connected to the outer wall of the annular pipe, and a connecting pipe being connected to the outer wall, and a pump body and a serpentine pipe being arranged at the bottom of the connecting pipe.
[0006] Preferably, a support rod is fixedly connected to the top of the base, one end of the support rod is fixedly connected to the outer wall of the cooling tank, a support plate is fixedly connected to the outer wall of the support rod, one end of the serpentine tube is fixedly connected to the bottom of the pump body, and the serpentine tube penetrates the waste liquid tank.
[0007] Preferably, there are two support plates, and the two support plates are located on the left and right sides of the cooling tank respectively. An L-shaped rod is fixedly connected to the top of the support plate on the left side of the cooling tank, and one end of the L-shaped rod is fixedly connected to the outer wall of the annular tube.
[0008] Preferably, the pump body is fixedly installed on the right side of the support plate located on the right side of the cooling tank, and the other end of the serpentine tube passes through an L-shaped rod. By setting the L-shaped rod, the annular tube can be supported and fixed, and the other end of the serpentine tube can also be fixed.
[0009] Preferably, a purification box is provided on the front of the waste liquid tank, and a filter screen and activated carbon filter plate are provided inside the purification box. The back of the purification box is connected to the waste liquid tank through a connecting pipe, and a liquid pump is installed on the top of the base to extract waste liquid.
[0010] Preferably, the top of the purification box has a through hole, and a mounting plate is slidably connected to the through hole. The filter screen and activated carbon filter plate are both fixedly installed at the bottom of the mounting plate. A sealing frame is fixedly connected to the outer wall of the mounting plate, and a handle is fixedly connected to the top of the mounting plate. The mounting plate can be easily pulled out by providing a handle.
[0011] The present invention adopts the above technical solution, which can bring the following beneficial effects:
[0012] 1. This energy-saving water circulation device for the production of high-elasticity polyester yarn can filter waste liquid by setting up filter screens and activated carbon filter plates. The filtered liquid is pumped into the heat exchanger by a liquid pump. Unscrewing the bolts on the sealing frame can release the mounting plate, thereby facilitating the disassembly of the filter screens and activated carbon filter plates and improving the practicality of the device.
[0013] 2. This energy-saving water circulation device for the production of high-elasticity polyester yarn can filter waste liquid by setting up filter screens and activated carbon filter plates. The filtered liquid is pumped into the heat exchanger by a liquid pump. Unscrewing the bolts on the sealing frame can release the mounting plate, thereby facilitating the disassembly of the filter screens and activated carbon filter plates and improving the practicality of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of the mounting plate and sealing frame of this utility model.
[0017] In the diagram: 1. Base; 2. Waste liquid tank; 3. Support rod; 4. Cooling tank; 5. Cooling pipe; 6. External pipe; 7. Extraction mechanism; 71. Annular pipe; 72. Suction head; 73. L-shaped rod; 74. Support plate; 75. L-shaped pipe; 76. Pump body; 77. Connecting pipe; 78. Serpentine pipe; 8. Purification box; 9. Mounting plate; 10. Sealing frame; 11. Filter screen; 12. Activated carbon filter plate; 13. Handle. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0022] Please see Figure 1-3One embodiment of this utility model is: an energy-saving water circulation device for the production of high-elasticity polyester yarn, comprising a base 1, a waste liquid tank 2 fixedly connected to the top of the base 1, a cooling tank 4 above the waste liquid tank 2, a cooling pipe 5 above the cooling tank 4, the cooling pipe 5 being cross-shaped to increase the spray range of the coolant, an external pipe 6 connected to the top of the cooling pipe 5, and an extraction mechanism 7 on the top of the base 1, the extraction mechanism 7 comprising an annular pipe 71, a suction head 72, and an L-shaped pipe 75, the annular pipe 71 being positioned above the cooling tank 4, the suction head 72 being connected to the bottom of the annular pipe 71, the L-shaped pipe 75 being connected to the outer wall of the annular pipe 71, and a connecting pipe 77 being connected to the outer wall, a pump body 76 and a serpentine pipe 78 being positioned at the bottom of the connecting pipe 77. A support rod 3 is fixedly connected to the top of the base 1. One end of the support rod 3 is fixedly connected to the outer wall of the cooling tank 4. A support plate 74 is fixedly connected to the outer wall of the support rod 3. One end of the serpentine tube 78 is fixedly connected to the bottom of the pump body 76. The serpentine tube 78 passes through the waste liquid tank 2. There are two support plates 74, and the two support plates 74 are located on the left and right sides of the cooling tank 4, respectively. An L-shaped rod 73 is fixedly connected to the top of the support plate 74 on the left side of the cooling tank 4. One end of the L-shaped rod 73 is fixedly connected to the outer wall of the annular tube 71. The pump body 76 is fixedly installed on the right side of the support plate 74 on the right side of the cooling tank 4. The other end of the serpentine tube 78 passes through the L-shaped rod 73. By setting the L-shaped rod 73, the annular tube 71 can be supported and fixed, and the other end of the serpentine tube 78 can also be fixed.
[0023] Working principle: The high-elastic polyester yarn in the cooling tank 4 is cooled by the external cooling fluid conveying equipment connected to the external pipe 6. The waste liquid pool 2 recovers the residual heat of the cooled waste liquid. The pump body 76 is started to generate suction head 72, which draws the heat generated during cooling into the interior of the annular pipe 71. Then, it is transported into the serpentine pipe 78 through the L-shaped pipe 75 and the connecting pipe 77. The serpentine pipe 78 heats up and heats the waste liquid in the waste liquid pool 2, thereby improving the efficiency of waste heat recovery.
[0024] Please see Figure 1-3 Based on the above embodiments, in another embodiment of this utility model, a purification box 8 is provided on the front of the waste liquid tank 2. The purification box 8 is provided with a filter screen 11 and an activated carbon filter plate 12. The back of the purification box 8 is connected to the waste liquid tank 2 through a connecting pipe. A liquid pump is installed on the top of the base 1 to extract waste liquid. A through hole is opened on the top of the purification box 8, and an installation plate 9 is slidably connected to the through hole. The filter screen 11 and the activated carbon filter plate 12 are both fixedly installed on the bottom of the installation plate 9. A sealing frame 10 is fixedly connected to the outer wall of the installation plate 9. A handle 13 is fixedly connected to the top of the installation plate 9. The installation plate 9 can be easily pulled out by setting the handle 13.
[0025] Working principle: Waste liquid can be filtered by setting filter screen 11 and activated carbon filter plate 12. The filtered liquid is pumped into the heat exchanger by a liquid pump. Unscrewing the bolts on the sealing frame 10 can release the mounting plate 9, thereby facilitating the disassembly of filter screen 11 and activated carbon filter plate 12 and improving the practicality of the device.
[0026] It is worth noting that the external pipe 6 is connected to an external heat exchanger, which delivers cooling water into the cooling pipe 5. The heat exchanger is not shown in the figure; for details, please refer to the prior art in the background section. It is not a major innovation and will not be described in detail here.
[0027] This utility model provides an energy-saving water circulation device for the production of high-elasticity polyester yarn. There are many methods and approaches to implement this technical solution; the above is only a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. An energy saving water recycling device for high-elasticity polyester yarn production, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a waste liquid pool (2), the upper portion of the waste liquid pool (2) is provided with a cooling tank (4), the upper portion of the cooling tank (4) is provided with a cooling pipe (5), the top of the cooling pipe (5) is communicated with an external pipe (6), the top of the base (1) is provided with an extraction mechanism (7), the extraction mechanism (7) comprises an annular pipe (71), a suction head (72) and an L-shaped pipe (75), the annular pipe (71) is arranged above the cooling tank (4), the suction head (72) is communicated and arranged at the bottom of the annular pipe (71), the L-shaped pipe (75) is communicated and arranged at the outer wall of the annular pipe (71), and the outer wall is communicated with a connecting pipe (77), and the bottom of the connecting pipe (77) is provided with a pump body (76) and a serpentine pipe (78).
2. An energy saving water recycling device for high-elasticity polyester yarn production according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a support rod (3), one end of the support rod (3) is fixedly connected with the outer wall of the cooling tank (4), the outer wall of the support rod (3) is fixedly connected with a support plate (74), one end of the serpentine pipe (78) is fixedly connected with the bottom of the pump body (76), and the serpentine pipe (78) penetrates the waste liquid pool (2).
3. An energy saving water recycling device for high-elasticity polyester yarn production according to claim 2, characterized in that: The number of the support plate (74) is two, and the two support plates (74) are respectively located on the left and right sides of the cooling tank (4), the top of the support plate (74) located on the left side of the cooling tank (4) is fixedly connected with an L-shaped rod (73), and one end of the L-shaped rod (73) is fixedly connected with the outer wall of the annular pipe (71).
4. An energy saving water recycling device for high-elasticity polyester yarn production according to claim 3, characterized in that: The pump body (76) is fixedly installed on the right side of the support plate (74) located on the right side of the cooling tank (4), and the other end of the serpentine pipe (78) penetrates the L-shaped rod (73).
5. An energy efficient water recycling unit for high stretch polyester filament production as claimed in claim 1 wherein: The front of the waste liquid pool (2) is provided with a purification box (8), and the inside of the purification box (8) is provided with a filter screen (11) and an activated carbon filter plate (12).
6. An energy saving water recycling device for high-elasticity polyester yarn production according to claim 5, characterized in that: The top of the purification box (8) is provided with a through hole, and the through hole is slidably connected with a mounting plate (9), the filter screen (11) and the activated carbon filter plate (12) are fixedly installed at the bottom of the mounting plate (9), the outer wall of the mounting plate (9) is fixedly connected with a sealing frame (10), and the top of the mounting plate (9) is fixedly connected with a handle (13).
Citation Information
Patent Citations
Energy-saving water circulation device for producing high-elasticity polyester yarns
CN212051739U