A hydraulically driven low-tension energy-saving flat-width washing tank

Abstract

This invention discloses a hydraulically driven, low-tension, energy-saving flat-width washing tank, comprising an upper rotary guide roller, a bottom rotary guide roller, bearings, guide roller blades, a pillow-shaped flow channel heating plate, and an insulation layer. By reducing the design of external bearings and mechanical seals, this invention results in a more aesthetically pleasing and cleaner overall device, completely solving the problem of frequent leaks in dyeing plant washing tanks, reducing water and chemical consumption, and significantly lowering the failure rate of mechanical seals. The underwater ceramic bearings and maintenance-free hydraulic lubrication of this invention prevent dirt accumulation, eliminate lubricant consumption, significantly extend bearing life, and reduce maintenance costs and workload. The adjustable torque hydraulic blades driving the rotary guide rollers in this invention reduce resistance during fabric movement, significantly increasing the range of processed fabrics, while also reducing weft skew, weft bending, and density changes during fabric processing, and reducing abrasions caused by high tension.

Description

Technical Field

[0001] The invention belongs to the field of mechanical equipment, and in particular relates to a hydraulically driven low-tension energy-saving flat-width water washing tank. Background Art

[0002] In the printing and dyeing industry, the washing tank is a widely used equipment component. It is widely used in pre-treatment processes such as dyeing, desizing, refining, degreasing, washing, and an important part of process equipment such as washing after printing and washing after dyeing.

[0003] The number of underwater driven rollers and cloth guide rollers in the open-width washing tank of the prior art is large, and because mechanical seals are provided on both sides of the underwater driven cloth guide rollers, the rotation resistance is large. Therefore, when processing cloth, the resistance of the entire washing tank system is large, and the processing cloth needs to maintain a very high operating tension, which leads to the formation of weft bends, weft skew, density changes, etc. on the cloth surface due to the high tension, which brings great difficulties to ensuring the processing quality, and in order to maintain high tension, the power consumption of the motor is high. In addition, it is impossible to process elastic products, knitted products and other fabrics that require low tension operation, and the processing varieties are limited.

[0004] The existing flat-width washing tank has a bearing located outside the tank, and is equipped with a mechanical seal and tank isolation. The processing precision of the general cloth guide roller is low, and the shaft head part shakes, which makes it difficult to ensure the stable operation of the mechanical seal, and the corrosion of the chemicals in the washing tank. Most mechanical seals have a service life period and a high leakage rate. The leakage rate of the mechanical seal of the washing tank in a general dyeing plant can reach more than 60%, becoming one of the main sources of dirtiness in the dyeing plant. Due to serious leakage, the outside of the washing tank is generally not equipped with an insulation layer, which consumes a lot of energy, and makes the ambient temperature in the workshop high in summer and the operating environment harsh.

[0005] The existing flat-width washing tank heating tank design adopts the method of indirect heating by installing a steam heating coil at the bottom of the washing tank or direct heating by installing a steam jet pipe. When the indirect heating coil is installed, the heating area is small, the efficiency is low, and the temperature rises slowly. When the direct steam heating jet is installed, there is a large vibration during heating, and the tank is prone to cracking. Both methods have the disadvantages of easy accumulation of dirt in the bottom pipe, difficult cleaning, and high energy consumption. Summary of the invention

[0006] Purpose of the invention: In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a hydraulically driven low-tension energy-saving flat-width washing tank.

[0007] Technical solution: A hydraulically driven low-tension energy-saving flat-width washing tank, comprising an upper rotary cloth guide roller, a bottom rotary cloth guide roller, a bearing, a cloth guide roller blade, and a pillow-shaped flow channel heating plate;

[0008] An upper rotary cloth guide roller is installed above the water surface of the open-width washing tank, and a bottom rotary cloth guide roller is installed below the water surface of the open-width washing tank; the fabric passes through the upper rotary cloth guide roller and the bottom rotary cloth guide roller in sequence;

[0009] The bearings at both ends of the bottom rotary cloth guide roller are arranged inside the flat-width washing tank and adopt self-lubricating ceramic bearings; cloth guide roller paddles are respectively provided on both sides of the bottom rotary cloth guide roller, and the cloth guide roller paddles drive the bottom rotary cloth guide roller; a liquid circulation pump is used to extract liquid in the tank and pump it into the bearing seat to provide liquid lubrication for the bearing. After the liquid leaves the bearing, it acts on the driving paddles fixed on both sides of the cloth guide roller to provide torque, drive the cloth guide roller to rotate, thereby driving the cloth to run, and can reduce the running tension of the cloth; in order to meet the requirements of different tensions when processing different varieties, the torque driving the cloth guide roller is adjusted by feedback control of the adjustable liquid pressure setting;

[0010] The bottom floor of the flat-width washing tank is composed of a plurality of pillow-shaped flow channel heating plates, the exterior of the pillow-shaped flow channel heating plate is pillow-shaped, the internal pipe of the pillow-shaped flow channel heating plate is U-shaped, and the pillow-shaped flow channel heating plates are laser welded. After welding, an inlet and an outlet are respectively provided at both ends of the integral pillow-shaped flow channel heating plate, the inlet inputs heated steam, and the outlet discharges condensed water formed after heating.

[0011] As an optimization: an insulation layer is also installed on the inner walls around and the inner wall at the bottom of the flat-width washing tank to fully insulate the tank wall. The insulation material of the insulation layer is aerogel felt, glass wool, and silicate rock wool, which has the characteristics of energy saving, thin layer, heat insulation, and waterproof.

[0012] As an optimization: the bottom rotary cloth guide roller is an adjustable torque drive roller, and the torque range is 0-50NM.

[0013] As an optimization: During the operation of the flat-width washing tank, circulating water is used to continuously flush the inside of the ceramic bearing to form a pressurized water film layer for hydraulic lubrication, thereby improving the self-lubricating effect of the bearing, reducing the operating resistance, and preventing dirt from accumulating inside the bearing.

[0014] As an optimization: the heat exchange area of ​​the flat-width washing tank can be 2m 2 above.

[0015] As an optimization: the tension in the flat-width washing tank ranges from 1kg to 50kg.

[0016] As an optimization: the temperature setting value in the flat-width washing tank can be set from room temperature to 99°C, the heating capacity of a single tank can be designed to be 50,000 kcal / h-1,000,000 kcal / h, and the actual temperature fluctuation value is within ±2°C.

[0017] Beneficial effects: The specific advantages of the present invention are as follows:

[0018] 1. The present invention reduces the design of external bearings and mechanical seals, and the overall equipment is beautiful and clean, which completely solves the problem of frequent leakage of dyeing plant washing tanks, reduces the consumption of water and chemicals, and greatly reduces the failure rate of mechanical seals.

[0019] 2. The underwater ceramic bearing and maintenance-free hydraulic lubrication of the present invention avoid dirt accumulation, eliminate the consumption of lubricating grease, greatly increase the service life of the bearing, and reduce maintenance costs and workload.

[0020] 3. The torque-adjustable hydraulic paddle-driven rotary cloth guide roller in the present invention can reduce the resistance of the cloth during operation. The tension in the groove ranges from 1kg to 50kg and is flexible and adjustable, which greatly increases the range of processed varieties, including stretch fabrics and other varieties. At the same time, it can reduce the weft skew, weft bend, and density changes produced in the cloth processing process, and reduce the abrasions caused by high tension.

[0021] 4. The present invention can save 10% of steam consumption by reducing leakage and thoroughly insulating the tank wall.

[0022] 5. The thermal insulation material of the thermal insulation layer in the present invention is aerogel felt, glass wool, silicate rock wool, which has the characteristics of energy saving, thin layer, heat insulation, waterproof and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structural diagram of the traditional water washing tank;

[0024] Figure 2 This is a schematic diagram of the assembly structure of the lower cloth guide roller in a traditional washing tank;

[0025] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 4 It is a partial enlarged structural schematic diagram of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the flow channel of the bottom pillow-shaped flow channel heating plate of the present invention;

[0028] Figure 6 It is a schematic diagram of the flow channel structure of the bottom pillow-shaped flow channel heating plate of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the protection scope of the present invention. The embodiments described in the present invention are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1-2 The figure shows the overall structure of a conventional washing tank and the assembly structure of the lower cloth guide roller in the conventional washing tank. The fabric passes through two rows of cloth guide rollers, the lower cloth guide roller 01 is below the washing liquid surface, the upper cloth guide roller is generally driven by a motor, and the lower cloth guide roller 01 is a free roller. The bearing 02 of the cloth guide roller is located outside the water tank, and a mechanical seal 03 is used to isolate the inside and outside of the water tank. A steam heating coil 04 is also provided at the bottom of the washing tank to heat the water tank.

[0032] like Figure 3-6 As shown, the hydraulically driven low-tension energy-saving flat-width washing tank of the present invention comprises an upper rotary cloth guide roller 1, a bottom rotary cloth guide roller 2, a bearing 3, a cloth guide roller blade 4, and a pillow-shaped flow channel heating plate 5.

[0033] An upper rotary cloth guide roller 1 is installed above the water surface of the open-width washing tank, and a bottom rotary cloth guide roller 2 is installed below the water surface of the open-width washing tank. The fabric passes through the upper rotary cloth guide roller 1 and the bottom rotary cloth guide roller 2 in sequence.

[0034] The bearings 3 at both ends of the bottom rotary cloth guide roller 2 are arranged inside the flat-width water washing tank, and adopt self-lubricating ceramic bearings; the design of mechanical seal is cancelled, the leakage point is eliminated, and the rotation resistance of the rotary cloth guide roller 2 is reduced. During the operation of the flat-width water washing tank, the ceramic bearings are continuously flushed internally with circulating water to form hydraulic lubrication with a pressurized water film layer, improve the self-lubricating effect of the bearings, reduce the running resistance, and prevent the accumulation of dirt inside the bearings.

[0035] The bottom rotary cloth guide roller 2 is an adjustable torque drive roller with a torque range of 0-50NM. The bottom rotary cloth guide roller 2 is respectively provided with cloth guide roller blades 4 on both sides, and the cloth guide roller blades 4 drive the bottom rotary cloth guide roller 2. The liquid in the tank is extracted by a liquid circulation pump and pumped into the bearing seat to provide liquid lubrication for the bearing. After the liquid leaves the bearing, it acts on the drive blades fixed on both sides of the cloth guide roller to provide torque, drive the cloth guide roller to rotate, and thus drive the cloth to run, which can reduce the running tension of the cloth; in order to meet the requirements of different tensions when processing different varieties, the torque of the driving cloth guide roller is adjusted by feedback control of the adjustable liquid pressure setting.

[0036] The bottom floor of the flat-width washing tank is composed of a number of pillow-shaped flow channel heating plates 5. The exterior of the pillow-shaped flow channel heating plate 5 is pillow-shaped, and the internal pipe of the pillow-shaped flow channel heating plate 5 is U-shaped. The pillow-shaped flow channel heating plates 5 are laser welded, and after welding, the two ends of the integral pillow-shaped flow channel heating plate 5 are respectively provided with an inlet 51 and an outlet 52. The inlet 51 inputs heated steam, and the outlet 52 discharges condensed water formed after heating. The temperature setting value in the tank can be from room temperature to 99°C, and the heating capacity of a single tank can be designed to rise by 50,000 kcal / h-1 million kcal / h, and the actual temperature fluctuation value is within ±2°C. The heat exchange area of ​​the flat-width washing tank can be 2m 2 The above mentioned, the fluid in the plate has a small hydraulic radius, low-speed turbulent flow, low pressure drop, high heat transfer coefficient, uniform heating, fast heating speed, ensuring uniform temperature in the water tank. The heating surface is smooth and the bottom is easy to clean.

[0037] Since the external bearing and mechanical seal at the bottom are removed, the tank wall of the washing tank needs to be fully insulated, so an insulation layer 6 is installed on the inner wall around the flat-width washing tank and the inner wall at the bottom to reduce steam energy consumption. The insulation material of the insulation layer is aerogel felt, glass wool, silicate rock wool, etc., which has the characteristics of energy saving, thin layer, heat insulation, waterproof, etc.

[0038] In summary, the present invention reduces the design of external bearings and mechanical seals, and the overall equipment is beautiful and clean. It completely solves the problem of frequent leakage in the washing tank of the dyeing factory, reduces the consumption of water and chemicals, and greatly reduces the failure rate of mechanical seals. The underwater ceramic bearings and maintenance-free hydraulic lubrication of the present invention avoid dirt accumulation, eliminate the consumption of lubricating grease, greatly increase the service life of the bearings, and reduce maintenance costs and workload. The hydraulic paddle with adjustable torque in the present invention drives the rotary cloth guide roller, which can reduce the resistance of the cloth during operation. The tension range in the tank is between 1kg-50kg, which is flexible and adjustable, greatly increasing the range of processed varieties, including varieties such as stretch fabrics, and at the same time can reduce the weft skew, weft bend, and density changes generated in the cloth processing process, and reduce the abrasions caused by high tension. The present invention can save 10% of steam consumption by reducing leakage and thoroughly insulating the tank wall.

Claims

1. A hydraulically driven low-tension energy-saving flat-width washing tank, characterized in that: It includes an upper rotary cloth guide roller, a bottom rotary cloth guide roller, a bearing, a cloth guide roller blade, and a pillow-shaped flow channel heating plate; An upper rotary cloth guide roller is installed above the water surface of the open-width washing tank, and a bottom rotary cloth guide roller is installed below the water surface of the open-width washing tank; the fabric passes through the upper rotary cloth guide roller and the bottom rotary cloth guide roller in sequence; The bearings at both ends of the bottom rotary cloth guide roller are arranged inside the flat-width washing tank and adopt self-lubricating ceramic bearings; cloth guide roller paddles are respectively provided on both sides of the bottom rotary cloth guide roller, and the cloth guide roller paddles drive the bottom rotary cloth guide roller; a liquid circulation pump is used to extract liquid in the tank and pump it into the bearing seat to provide liquid lubrication for the bearing. After the liquid leaves the bearing, it acts on the driving paddles fixed on both sides of the cloth guide roller to provide torque, drive the cloth guide roller to rotate, thereby driving the cloth to run and reducing the running tension of the cloth; in order to meet the requirements of different tensions when processing different varieties, the torque driving the cloth guide roller is adjusted by feedback control of the adjustable liquid pressure setting; The bottom floor of the flat-width washing tank is composed of a plurality of pillow-shaped flow channel heating plates, the outer portion of the pillow-shaped flow channel heating plate is pillow-shaped, the inner pipe of the pillow-shaped flow channel heating plate is U-shaped, the pillow-shaped flow channel heating plates are laser welded, and after welding, an inlet and an outlet are respectively arranged at both ends of the integral pillow-shaped flow channel heating plate, the inlet inputs heated steam, and the outlet discharges condensed water formed after heating; The inner walls around the flat-width washing tank and the inner wall at the bottom are also provided with an insulation layer to fully insulate the tank wall. The insulation material of the insulation layer is aerogel felt, glass wool, or silicate rock wool. The bottom rotary cloth guide roller is an adjustable torque drive roller, and the torque range is 0-50NM; During the operation of the flat-width washing tank, circulating water is used to continuously flush the inside of the ceramic bearing, forming a pressurized water film layer for hydraulic lubrication, thereby improving the self-lubricating effect of the bearing, reducing the running resistance, and preventing dirt from accumulating inside the bearing.

2. The hydraulically driven low-tension energy-saving flat-width washing tank according to claim 1 is characterized in that: The heat exchange area of ​​the flat-width washing tank is 2m 2 above.

3. The hydraulically driven low-tension energy-saving flat-width washing tank according to claim 1 is characterized in that: The tension in the flat-width washing tank ranges from 1kg to 50kg.

4. The hydraulically driven low-tension energy-saving flat-width washing tank according to claim 1, characterized in that: The temperature setting value in the flat-width washing tank ranges from room temperature to 99°C, the heating capacity of a single tank is designed to increase the temperature by 50,000 kcal / h-1,000,000 kcal / h, and the actual temperature fluctuation value is within ±2°C.

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