Efficient yarn dyeing wastewater waste heat recovery device

Abstract

The utility model relates to wastewater waste heat recovery technical field, concretely for a kind of high -efficient yarn dyeing wastewater waste heat recovery device, including base and auxiliary mechanism, the upper surface one end of base is equipped with heat exchange box, auxiliary mechanism is located inside the heat exchange box, the auxiliary mechanism includes heat exchange medium, heat exchange tube and heat exchange shell side, the inside of heat exchange box is filled with heat exchange medium, the inside of heat exchange box is equipped with heat exchange tube, the heat exchange tube is spirally arranged, the outer wall of heat exchange tube is wrapped with heat exchange shell side;The utility model is arranged by heat exchange tube inside heat exchange box with spiral structure, greatly increase the contact area of wastewater and heat exchange medium, prolongs heat exchange time, makes the waste water carried waste heat more fully transfer to heat exchange medium, while the several turbulence blocks of heat exchange tube inner wall setting, water flow forms turbulent flow, further improves the uniformity and efficiency of heat exchange.

Description

Technical Field

[0001] This utility model relates to the field of wastewater waste heat recovery technology, and in particular to a high-efficiency yarn dyeing wastewater waste heat recovery device. Background Technology

[0002] In the yarn dyeing process, the dyeing process needs to maintain a relatively high temperature, usually 60-95℃, to ensure that the dye fully adheres to the yarn. The resulting dyeing wastewater also carries a large amount of heat energy. Direct discharge of high-temperature wastewater will cause serious waste of heat energy. Currently, the waste heat recovery equipment commonly used in the industry contains dye residues, auxiliaries and other impurities in the dyeing wastewater, which easily adhere to the gaps between the heat exchanger plates or the inner wall of the pipes. As the usage time goes by, the blockage gradually worsens, resulting in a significant decrease in heat exchange efficiency. In order to maintain the heat exchange effect, enterprises need to frequently disassemble the equipment for cleaning. Each disassembly and cleaning not only consumes a lot of manpower and time, but also interrupts the continuous operation of the dyeing production line, resulting in reduced production efficiency and economic losses.

[0003] Therefore, we propose a high-efficiency waste heat recovery device for yarn dyeing wastewater. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency waste heat recovery device for yarn dyeing wastewater.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency waste heat recovery device for yarn dyeing wastewater includes a base and an auxiliary mechanism. A heat exchange box is installed at one end of the upper surface of the base. The auxiliary mechanism is located inside the heat exchange box and includes a heat exchange medium, heat exchange tubes, and a heat exchange shell. The heat exchange box is filled with a heat exchange medium. The heat exchange tubes are installed inside the heat exchange box in a spiral arrangement. The outer wall of the heat exchange tubes is wrapped with a heat exchange shell. The inner wall of the heat exchange tubes is provided with several turbulence blocks. A temperature sensor is installed at the top of the heat exchange box.

[0006] As a further embodiment of this utility model: a filter box is installed at one end of the heat exchange box, a wastewater inlet pipe is installed at the end of the filter box away from the heat exchange box, a flow regulating valve is installed above the wastewater inlet pipe, and the filter box and the heat exchange box are connected by a pipeline.

[0007] As a further embodiment of this utility model: the heat exchange box has a medium outlet at the end away from the filter box, and a delivery pump is installed above the medium outlet via a pipe, and a processing box is installed at the output end of the delivery pump via a pipe.

[0008] As a further improvement of this utility model: a temperature compensation module is installed at the top of the inside of the processing box, and an insulation pipe is wrapped around the outer end of the delivery pump.

[0009] As a further improvement of this utility model: a wastewater outlet is provided at one end of the heat exchange box, and a cooler is installed at one end of the wastewater outlet.

[0010] As a further improvement of this utility model: a PLC control system is installed on one side of the outer end of the heat exchange box, and the PLC is electrically connected to the flow regulating valve, the temperature sensor and the delivery pump respectively.

[0011] Compared with the prior art, this utility model provides a high-efficiency waste heat recovery device for yarn dyeing wastewater, which has the following beneficial effects: This invention utilizes a spiral structure in the heat exchange tubes inside the heat exchange box, significantly increasing the contact area between wastewater and the heat exchange medium, extending the heat exchange time, and allowing the wastewater to more fully transfer its residual heat to the heat exchange medium. Simultaneously, the presence of turbulent flow blocks on the inner wall of the heat exchange tubes promotes turbulent flow, further enhancing the uniformity and efficiency of heat exchange. Combined with a PLC control system at the external end of the heat exchange box, the system can monitor the temperature of the heat exchange medium in real time via a temperature sensor. If the temperature does not reach the expected level, the system can promptly adjust the flow regulating valve on the wastewater inlet pipe to control the wastewater inflow rate, ensuring that the heat exchange medium can always efficiently absorb residual heat and reducing costs.

[0012] This invention achieves centralized electrical control of the flow regulating valve, temperature sensor, and delivery pump through a PLC control system, eliminating the need for frequent manual monitoring and parameter adjustments. The temperature sensor provides real-time feedback of the temperature data inside the heat exchange box, and the PLC automatically adjusts the wastewater flow rate according to preset thresholds. Once the temperature of the heat exchange medium reaches the target, the PLC can precisely control the delivery pump to transport it to the processing box. The entire process is highly automated, reducing not only human error but also labor costs.

[0013] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency yarn dyeing wastewater waste heat recovery device proposed in this utility model. Figure 2 This is a front view cross-sectional structural diagram of a high-efficiency yarn dyeing wastewater waste heat recovery device proposed in this utility model; Figure 3 This is a schematic diagram of the overall structure of a high-efficiency yarn dyeing wastewater waste heat recovery device proposed in this utility model. Figure 4 This is a schematic diagram of the overall structure of a high-efficiency yarn dyeing wastewater waste heat recovery device proposed in this utility model.

[0015] In the diagram: 1. Base; 2. Auxiliary mechanism; 201. Heat exchange medium; 202. Heat exchange tube; 203. Heat exchange shell side; 204. Turbulence block; 205. Temperature sensor; 3. Heat exchange box; 4. Filter box; 5. Wastewater inlet pipe; 6. Flow regulating valve; 7. Medium outlet; 8. Transfer pump; 9. Processing box; 10. Temperature compensation module; 11. Insulation pipe; 12. Wastewater outlet; 13. Cooler; 14. PLC control system. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] 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 element 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.

[0018] Example: A high-efficiency waste heat recovery device for yarn dyeing wastewater, such as Figures 1-4 As shown, the device includes a base 1 and an auxiliary mechanism 2. A heat exchange box 3 is installed on one end of the upper surface of the base 1. The auxiliary mechanism 2 is located inside the heat exchange box 3 and includes a heat exchange medium 201, heat exchange tubes 202, and a heat exchange shell 203. The heat exchange box 3 is filled with the heat exchange medium 201, and the heat exchange tubes 202 are installed inside the heat exchange box 3. The heat exchange tubes 202 are arranged in a spiral shape, and the heat exchange shell 203 is wrapped around the outer wall of the heat exchange tubes 202. The wall is equipped with a minor turbulence block 204, and a temperature sensor 205 is installed at the top of the heat exchange box 3. The heat exchange tube 202 inside the heat exchange box 3 adopts a spiral structure, which greatly increases the contact area between the wastewater and the heat exchange medium 201, prolongs the heat exchange time, and allows the waste heat carried by the wastewater to be transferred to the heat exchange medium 201 more fully. At the same time, the minor turbulence block 204 set on the inner wall of the heat exchange tube 202 promotes the water flow to form turbulence, which further improves the uniformity and efficiency of heat exchange.

[0019] like Figures 1-4As shown, a filter box 4 is installed at one end of the heat exchange box 3. A wastewater inlet pipe 5 is installed at the end of the filter box 4 away from the heat exchange box 3. A flow regulating valve 6 is installed above the wastewater inlet pipe 5. The filter box 4 and the heat exchange box 3 are connected by a pipeline. By adjusting the flow regulating valve 6 on the wastewater inlet pipe 5, the wastewater inflow rate is controlled, thereby ensuring that the heat exchange medium 201 can always efficiently absorb waste heat and reduce costs.

[0020] like Figures 1-4 As shown, the heat exchange box 3 has a medium outlet 7 at the end away from the filter box 4. A transfer pump 8 is installed above the medium outlet 7 through a pipe. A processing box 9 is installed at the output end of the transfer pump 8 through a pipe. The heat exchange medium 201 after heat absorption can be sent into the processing box through the transfer pump 8, and the waste heat can be processed and utilized in conjunction with the heat insulation pipe 11 and the temperature compensation module 10.

[0021] like Figures 1-4 As shown, a temperature compensation module 10 is installed at the top of the interior of the processing box 9, and an insulation pipe 11 is wrapped around the outer end of the transfer pump 8. The insulation pipe 11 wrapped around the outer end of the transfer pump 8 can reduce the heat loss of the heat exchange medium 201 during the transportation process, and ensure that the temperature of the medium entering the processing box 9 meets the production requirements.

[0022] like Figures 1-4 As shown, a wastewater outlet 12 is provided at one end of the heat exchange box 3, and a cooler 13 is installed at the other end of the wastewater outlet 12. The wastewater that has completed waste heat recovery can be cooled by the cooler 13 so that it meets the discharge standards before being discharged, which complies with environmental protection requirements.

[0023] like Figures 1-4 As shown, a PLC control system is installed on one side of the outer end of the heat exchange box 3. The PLC is electrically connected to the flow regulating valve 6, the temperature sensor 205, and the transfer pump 8. Through operation control, the PLC control system 14 realizes centralized electrical control of the flow regulating valve 6, the temperature sensor 205, and the transfer pump 8, eliminating the need for frequent manual monitoring and parameter adjustment. The temperature sensor 205 provides real-time feedback of the temperature data inside the heat exchange box 3. The PLC automatically adjusts the wastewater flow rate according to the preset threshold. When the temperature of the heat exchange medium 201 reaches the standard, it can accurately control the transfer pump 8 to transport it to the processing box 9. The whole process is highly automated, which not only reduces human operation errors but also reduces labor costs.

[0024] Working Principle: In operation, the high-efficiency yarn dyeing wastewater waste heat recovery device receives yarn dyeing wastewater through the wastewater inlet pipe 5. Passing through the filter box 4 at one end, it effectively filters out dye residue, yarn debris, and auxiliary impurities. The filtered wastewater then enters the spiral heat exchange tube 202 inside the heat exchange box 3. The spiral structure significantly increases the contact area between the wastewater and the heat exchange medium 201, extending the heat exchange time. Simultaneously, the turbulent flow blocks 204 on the inner wall of the heat exchange tube 202 break the laminar flow of the wastewater, promoting turbulence and improving the uniformity and efficiency of heat exchange. This ensures that the high-temperature heat energy carried by the wastewater is fully transferred to the heat exchange medium 201. The temperature sensor 205 at the top of the heat exchange box 3 monitors the temperature of the heat exchange medium 201 in real time and transmits the data to the PLC control system 14 on the outer side of the heat exchange box 3. The PLC control system 14 intelligently regulates the equipment according to a preset temperature threshold. If the temperature of the heat exchange medium 201 does not reach the expected value, the PLC... The flow regulating valve 6 on the wastewater inlet pipe 5 automatically adjusts the wastewater inlet speed to ensure that the heat exchange medium 201 efficiently absorbs waste heat. When the temperature of the heat exchange medium 201 reaches the standard, the PLC precisely controls the start of the delivery pump 8 at the end of the heat exchange box 3 away from the filter box 4, which transports the heat exchange medium 201 to the processing box 9 through the pipeline. The heat insulation pipe 11 wrapped around the outer end of the delivery pump 8 can reduce the heat loss of the heat exchange medium 201 during the transportation process. The wastewater that has completed the waste heat recovery is discharged through the wastewater outlet 12 at one end of the heat exchange box 3 and enters the cooler 13 at the end of the wastewater outlet 12. The cooler 13 cools the wastewater to make it meet the discharge standards before it is discharged. The above description is only a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency waste heat recovery device for yarn dyeing wastewater, comprising a base (1) and an auxiliary mechanism (2), characterized in that... A heat exchange box (3) is installed on one end of the upper surface of the base (1). An auxiliary mechanism (2) is located inside the heat exchange box (3). The auxiliary mechanism (2) includes a heat exchange medium (201), a heat exchange tube (202), and a heat exchange shell (203). The heat exchange box (3) is filled with a heat exchange medium (201). A heat exchange tube (202) is installed inside the heat exchange box (3). The heat exchange tube (202) is spirally arranged. The outer wall of the heat exchange tube (202) is wrapped with a heat exchange shell (203). A small turbulence block (204) is provided on the inner wall of the heat exchange tube (202). A temperature sensor (205) is installed at the top of the heat exchange box (3).

2. The high-efficiency yarn dyeing wastewater waste heat recovery device according to claim 1, characterized in that... A filter box (4) is installed at one end of the heat exchange box (3). A wastewater inlet pipe (5) is installed at the end of the filter box (4) away from the heat exchange box (3). A flow regulating valve (6) is installed above the wastewater inlet pipe (5). The filter box (4) and the heat exchange box (3) are connected by a pipe.

3. The high-efficiency yarn dyeing wastewater waste heat recovery device according to claim 1, characterized in that... The heat exchange box (3) has a medium outlet (7) at the end away from the filter box (4). A delivery pump (8) is installed above the medium outlet (7) through a pipe. A processing box (9) is installed at the output end of the delivery pump (8) through a pipe.

4. The high-efficiency yarn dyeing wastewater waste heat recovery device according to claim 3, characterized in that... A temperature compensation module (10) is installed at the top of the inside of the processing box (9), and an insulation pipe (11) is wrapped around the outer end of the delivery pump (8).

5. The high-efficiency yarn dyeing wastewater waste heat recovery device according to claim 1, characterized in that... The heat exchange box (3) has a wastewater outlet (12) at one end, and a cooler (13) is installed at one end of the wastewater outlet (12).

6. The high-efficiency yarn dyeing wastewater waste heat recovery device according to claim 1, characterized in that... A PLC control system is installed on one side of the outer end of the heat exchange box (3). The PLC is electrically connected to the flow regulating valve (6), the temperature sensor (205) and the delivery pump (8).

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