TWI555894B - There is a heat transfer device for the dyeing machine - Google Patents

Description

Dyeing machine filter with heat exchanger

This invention relates to a filtering device, and more particularly to a dyeing machine filter.

In the dyeing and finishing industry, dyeing machines are indispensable for the dyeing of cloth or spindles. The filter is the key device to protect the dye liquor circulation system. It can remove the residue in the dye liquor and avoid damage to the structural components of the pump and other precision machinery. At the same time, dyeing the fabric or the spindle, it is also necessary to use a heat exchange device to adjust the temperature of the dye liquor in the dyeing machine. The heat exchange devices of the existing dyeing equipment are separated from the dyeing machine and installed in the dye liquor cycle to inject or remove heat from steam or cold water. At the same time, the fluid inlet of the existing filter is located above the filter, and when the fluid enters the filter, it is free to fall, which has an adverse effect on the flow direction in the filter, is easy to be turbulent, and reduces the filtration efficiency. At the same time, the dye liquor in the dyeing system passes through the filter and is directed to its outlet next to the body. Due to its cylindrical design, the inner wall of the body must be kept at a distance from the filter, which also takes up part of the space. This also adds an additional amount of water to the dye circulation system.

The scraper is a key component in the filter, the existing dyeing machine filter There are many defects in the scraper. For example, the scraper on the filter disclosed in Patent No. 201120339401.1 is crescent-shaped. When the scraper rotates along the axis, the retentate will still accumulate on the scraper surface, although spring and articulated If the design is improved, if the material with strong toughness is still likely to be dragged or even stuck, the scraper structure will be damaged.

In the production of dyeing and finishing equipment, how to reduce industrial water has become a major trend, equipment manufacturers try their best to reduce the excess water space in the machine structure to reduce the ratio of fabric to dye liquor. It is an object of the present invention to provide a novel filter in which the filter and the heat sink are integrally designed to install the heat exchanger in the filter to improve efficiency and reduce the amount of water used in the fluid treatment system. At the same time, the technical improvement of the scraper solves the above-mentioned defects of the prior art scraper, and creates a novel drainage design different from the existing filter, and adopts a new type of filter net to realize technical improvement of the filter and save a lot of water. And improve production efficiency.

The technical solution provided by the present invention is: the present invention provides a dyeing machine filter having a heat exchange device, the structure comprising a main body (1), a filter net (8), a scraper (9), a fluid inlet (2), and a fluid outlet ( 3) an end cover (16) and a motor (17), characterized in that the structure further comprises a heat exchange device installed between the inner wall of the main body (1) and the filter net (8), and the end cover (16) is installed. At the top of the main body (1), the main shaft (11), the scraper (9) and the filter are mounted at the center of the circle, and the end cover (16) is mounted with a motor (17) for driving the main shaft (11) and the main shaft. The scraper (9) of (11) rotates, and the scraping edge touches the inner wall of the filter when the scraper rotates.

The invention provides a dyeing machine filter with a heat exchange device, wherein the heat exchange device is composed of a metal structure heat exchanger (13), and a heat exchanger (13) has a pipe for the heat exchange medium to travel, heat exchange The inlet of the device (13) is connected to a steam or water source other than the main body (1), and the outlet of the heat exchanger (13) is connected to a discharge pipe outside the main body (1).

The invention provides a dyeing machine filter with a heat exchange device. The heat exchanger (13) is a cylindrical structure. The cylinder is composed of an inner wall and an outer wall, and the top is sealed by a circular sealing cover, and the bottom is replaced. The heat medium inlet and outlet, the heat exchange medium is injected into the space between the inner wall and the outer wall from the bottom of the cylinder.

The present invention provides a dyeing machine filter having a heat exchange device, the heat exchanger (13) being a coil structure.

The invention provides a dyeing machine filter with a heat exchange device. The heat exchanger (13) is provided with a filter net (8) inside, and a filter cylinder (10) is arranged inside the filter net, and the filter net (8) is The end caps (16) are connected, a filter chamber is formed between the inner side of the filter screen and the cylinder, and a heat exchange chamber is formed between the outer side of the filter net and the wall of the main body.

The present invention provides a dyeing machine filter having a heat exchange device, the doctor blade (9) being a spiral blade whose wiper edge is in contact with the filter screen when rotated.

The present invention provides a dyeing machine filter having a heat exchange device, the doctor blade (9) being a plurality of blades mounted on a rotating shaft.

The invention provides a dyeing machine filter with a heat exchange device, the scraping The knife (9) is fixed to the cylinder (10), and the inner wall of the cylinder (10) has a bracket connected to the main shaft (11).

The invention provides a dyeing machine filter with a heat exchange device. The filter net (8) has a groove (20), so that the inner wall of the filter net forms a space that cannot be touched when the scraper rotates.

The invention provides a dyeing machine filter with a heat exchange device. The heat exchanger (13) has a plurality of baffles (6) installed in the space of the heat exchanger (13).

The invention provides a dyeing machine filter with a heat exchange device. The main body (1) is provided with a fluid inlet (2), the fluid inlet (2) is connected with the cylinder (10), and a residue discharge port is arranged at the bottom of the main body ( 4) After the fluid enters the main body, the cylinder (10) is filled from top to bottom, and then overflows from the top end of the cylinder (10).

The present invention provides a dyeing machine filter having a heat exchange device, the end cap (16) and the filter screen (8) being detachable from the body (1).

The invention provides a dyeing machine filter with a heat exchange device, the motor (17) is connected with a short shaft (19), and the coupling device (18) connects the short shaft (19) concentrically with the main shaft (11), and the coupling shaft The device (18) is a pair of separable plates from which the motor (17) can be removed.

In the fabric dyeing and finishing machinery, the separate separation of the filter and the heat exchanger is a conventional arrangement of the dyeing circulation system. The water consumption defined in the dyeing includes the water occupied by the entire circulation system. The heat exchanger of the present invention can be placed in the filter to achieve the important purpose of saving water, and the relative water consumption is reduced by reducing the circulation system. Does not affect the filtration and heat transfer work in the system The invention can combine the above two functions in the same main body design, is an innovative design in the dyeing and finishing machinery industry, and is a remarkable progress of the filter device in the dyeing and finishing machine. Comparing the same heat exchange performance, the design of the present invention can greatly reduce the fluid capacity occupied by separating the filter and the heat exchanger.

The present invention places the heat exchange device in the filter so that it has both the function of the heat exchanger and the filter. The filtration function and heat transfer efficiency are concentrated in the same main body, and the fluid occupancy is much lower than the existing filter and heat exchanger separate design, reducing the circulation system to occupy water, which can save the water in the system for the dyeing and finishing machine. The amount of machine operation is reduced, energy consumption is reduced, and the effect is significant in the dyeing and finishing industry with a large amount of water.

At the same time, the improvement of the blade in the filter in the present invention can more effectively alleviate the resistance caused by the accumulation of the retentate on the blade. The spiral blade designed in the invention is structurally harder than the prior art crescent-shaped blade, and has a larger connecting surface with the transmission shaft, which can more effectively reduce the resistance caused by the accumulation of the retentate on the blade, and can be more effective. Reducing the resistance caused by the accumulation of retentate on the scraper. The number of spiral blades is not limited, and two or more scrapers can be used simultaneously on the same drive shaft.

In order to prevent turbulence from flowing due to excessive flow rate when fluid enters the body, the present invention employs a novel drainage design. The drainage of a typical filter is simple and straightforward. For example, a filter disclosed in Patent No. 201120339401.1 has a fluid inlet located above the main body to directly introduce a fluid having a relatively fast flow rate into the filter chamber without any slow design. If the flow rate is too fast, it is easy to make turbulent flow, which is not conducive to the precipitation of the residue in the main body. The invention adopts a novel flow guiding design to effectively prevent turbulent flow formation. Place the fluid inlet under the body The body is filled with the fluid from the bottom to the top in an overflow manner, and then the flow direction is converted by the baffle to further reduce the flow rate of the fluid in the body. The drainage design of the present invention features the following: The fluid inlet (2) is located below the body to allow fluid to enter the center of the body from the bottom of the body. There is a standing cylinder (10) in the center of the body, and the cylinder is connected to the fluid inlet to allow the fluid to enter the body and fill the cylinder from bottom to top. After the cylinder is filled, the fluid overflows from the top of the cylinder and fills the remaining space in the body.

The filter screen used in the present invention is cylindrical, and the cylinder has at least one groove (20) projecting outward from the center of the circle, as shown in the top view of FIG. Since the doctor blade (9) of the present invention is placed on the inner wall of the filter screen (8), the groove is recessed with respect to the doctor blade. When the scraper passes through the above-mentioned groove, the residue which is clamped and dragged between the scraper and the filter net is released for a short time due to the separation of the two, and the residue is effective for the above-mentioned liquid flow around the filter. The edge of the scraper is washed away from the scraper during a short period of separation from the filter, and falls into the residue discharge port (4) at the bottom of the container at the groove, so that the residue adhered to the inner wall of the filter scraped by the scraper can be cleaned in time. The material reduces the labor of cleaning the filter and improves the cleanliness of the dye solution.

1‧‧‧ Subject

2‧‧‧ fluid inlet

3‧‧‧ fluid outlet

4‧‧‧Residue discharge

5‧‧‧heat exchanger inlet and outlet throat

6‧‧‧Baffle

7‧‧‧Filter chamber

8‧‧‧Filter

9‧‧‧Scraper

10‧‧‧Cylinder

11‧‧‧ Spindle

12‧‧‧ Heat exchange chamber

13‧‧‧heat exchanger

14‧‧‧ Valve

15‧‧‧Baffle

16‧‧‧End cover

17‧‧‧Motor

18‧‧‧Coupling device

19‧‧‧ Short axis

20‧‧‧ Groove

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional front view of the present invention.

Figure 2 is the internal structure of the heat exchanger.

Figure 3 is a plan view of the filter screen and the doctor blade.

Figure 4 is a perspective cross-sectional view of the filter screen and the doctor blade.

Figure 5 is a schematic perspective view of the present invention.

The present invention is further illustrated by the following embodiments: as shown in FIG. 1 to FIG. 5, the embodiment includes a main body 1 having a fluid outlet 3, a fluid inlet 3, a heat exchanger inlet and outlet throat 5, and a retentate discharge. The port 4 is attached with a motor 17 and a scraper 9 in the drive unit driving body 1. The main body 1 also includes a filter net 8 and a heat exchanger 13 disposed across the fluid flow in the main body 1.

The fluid inlet is located below the device. The fluid entering the filter is drained through the pipe to the center of the filter, filling the space before the filter through the overflow. Special drainage design enhances filtration performance and maximizes the coverage of the filter.

The filter 8 is a cylindrical metal foil with fine perforations for allowing liquid to flow therethrough and blocking the retentate. The blade 9 is mounted at the center of the cylinder, and its edge touches the inner wall of the cylinder. The scraper is coupled to a motor driven spindle 11 for rotation in the center of the cylinder. The mounting position of the main shaft opposite to the cylindrical filter is concentric, so that the entire perforated area of the filter can be touched when the scraper rotates, and the retentate adhered to the inner wall of the cylinder is scraped off or cut off until the retentate The volume can be finely perforated for automatic cleaning.

The heat exchanger is installed in a space after flowing through the filter, and the filtered fluid enters the other chamber in the main body 1, and the heat exchanger is installed in the space of the chamber. The heat exchanger is made of metal and contains a pipe inside to allow the heat exchange medium to flow through the heat exchanger. The heat exchange medium and the dye liquor flowing through the heat exchange chamber are separated by the metal casing of the heat exchanger and are not in contact with each other. Heat conduction through the metal The temperature difference between the inner and outer sides is generated, so that the heat energy is infiltrated into the dye liquor from the heat exchange medium, or is taken away from the dye liquor by the heat exchange medium, thereby causing the dye liquid to warm or cool down.

The heat exchanger has no predetermined shape in the heat exchange chamber, and the heat exchange area can be increased to increase the heat exchange efficiency by extending the tube path of the heat exchange medium. The assembly constituting the heat exchanger includes at least one metal hollow pipe, and the two ends of the pipe are connected to the outside of the main body 1, so that the fluid can enter the pipe from one end, and flows through a part of the pipe located in the main body 1 in one direction, and leaves the main body 1 from the other end. . Since the heat exchanger shares a body 1 with the filter, the size, orientation and shape of the heat exchanger within the body 1 are limited by the position of the filter within the body 1. The outer wall of the heat exchanger contacts the fluid being treated in the space of the body 1, and these contact surfaces are defined as heat exchange areas in heat conduction. In order to increase the heat exchange efficiency of the main body 1, it is customary to increase the heat exchange area as much as possible in a limited space.

In an embodiment of the invention, a cylindrical heat exchanger is utilized which is constructed of an inner wall and an outer wall, the top being sealed by a circular closure. The bottom is connected to a heat exchange medium inlet and an outlet, and the heat exchange medium is injected into the space between the inner wall and the outer wall from the bottom of the cylinder. In order to completely enrich the heat exchange medium in the space inside the cylinder, some baffles guide the heat exchange medium to all the space in the zigzag walking cylinder, and the flow direction is shown in the arrow of FIG.

In this embodiment, the pipe is stacked on the periphery of the filter in a circular manner. Both ends of the pipe are connected to a source of heat exchange medium other than the filtering device, such as tap water and steam. After filling the pipe with any heat exchange medium, if the fluid flowing through the outer wall, that is, the fluid passing through the filter contacts the outer wall of the pipe and there is a temperature difference, heat conduction occurs. By virtue of the conduction, the fluid can be borrowed The heat exchange medium acquires or extracts heat, causing the effect of heating or cooling.

In use, fluid enters the body through the fluid inlet and is directed to the top of the body 1 by the pressure of the circulation system itself. The fluid inlet 2 is located below the body so that the fluid can fill the body in an overflow manner, reducing turbulence and making the filtered residue more susceptible to precipitation. The main body 1 has a hollow cylinder 10 as a conduit for connecting the fluid inlet, and the fluid enters the main body 1 and is gradually filled with the cylinder.

The filter chamber is defined by the outer wall of the cylinder 10 and the inner wall of the filter screen 8. The filter screen is cylindrical and consists of a metal plate covered with micropores arranged across the entire fluid path in the body 1. The size of the holes in the filter screen should not be sufficient to allow debris such as dander in the fluid to pass through, so that during the operation of the filter, the debris may be stopped on the inner wall of the filter due to the inability to flow to the other end of the filter. As the operating time is extended, the separator on the filter will gradually accumulate and begin to block the holes in the filter, affecting the speed and flow of the fluid through the filter. It is necessary to remove the retentate on the filter to restore normal flow rates. In this embodiment, at least one scraper 9 is mounted in the filter chamber 7, and the spiral scraper and the filter are concentrically mounted in the main body 1 and mechanically coupled to a motor so that the scraper can pass through the transmission. The body 1 rotates inside. The blade is designed to scrape off the surface of the inner wall of the filter for a long time while rotating and scrape the retentate from the filter screen. The scraper 9 is integrally connected to the cylinder 10 for support. The inner wall of the cylinder has a bracket connected to the main shaft 11, so that when the main shaft rotates, the cylinder and the scraper also rotate in the same direction at the same time. In this embodiment, the main shaft is mounted concentrically with the cylinder, the scraper and the filter, wherein the main shaft faces the end cover 16 of the main body 1 The power is extended and connected to drive the scraper in the body 1. The position of the spindle through the end cap also has a mechanical seal to prevent fluid from leaking there. These are the mechanical designs that are common in handling the sealed body 1.

When the fluid enters the filter chamber, its filter meshes across the entire fluid flow, so that the fluid passes through the filter through the perforations in the filter screen. The retentate with a larger volume than the perforation in the fluid is blocked on the perforations, ie stagnated upstream of the filter. The rotating spiral blade touches the retentate on the filter screen, and the blade will pull the retentate away from the filter web or cut and tear it to a smaller volume of retentate. Depending on its size, the chopped remnant may stay on the filter again, or be small enough to pass through the perforations in the filter. Part of it will also settle to the bottom of the filter chamber, and the speed of the scraper will be adjusted to be insufficient to create excessive turbulence, which will affect the precipitation.

The fluid passes through the filter and enters another chamber which is comprised of the wall of the body 1, the end cap 16, and the filter 8 and the separator 15, and is defined as the heat exchange chamber 12. Since the main body 1 and the filter screen 8 are installed concentrically in this embodiment, the heat exchange chamber surrounds the filter screen. There is a heat exchanger 13 in the heat exchange chamber, and the heat exchanger is composed of at least one metal hollow pipe. Both ends of the pipe are connected to the outside of the main body 1 and connected to any heat exchange boundary such as water or saturated steam. In other embodiments of the invention, the heat exchanger can be presented in the form of a coil. The direction of the pipe in the body 1 is arranged around the filter, theoretically filling the space of most of the heat exchange chamber in a disk-folding manner. The pipe is wound inside the main body 1 and travels the longest pipe length to make the largest heat exchange area. The pipe is stacked from the inside to the outside and from the top to the bottom into several layers. According to the size of the heat exchange chamber, the arrangement of the pipes can also be different. Between the different layers of the pipe and the surrounding walls Space allows fluid to flow from these spaces and contact the outer wall of the pipe. In the original idea of the invention, the arrangement of the pipe should occupy the space of most of the heat exchange chamber, and the direction of the pipe is also designed in the direction of achieving the maximum heat exchange area.

When the fluid flows through the outer wall of the heat exchanger, the heat of the fluid is taken away or absorbed from the heat transfer conductor due to the temperature difference with the heat exchange boundary in the heat exchanger. The effect of adjusting the temperature of the fluid is achieved by controlling the type and flow rate of the heat exchange boundary within the heat exchanger. After the fluid passes through the heat exchange chamber, it exits the body 1 from the fluid outlet, and the flow direction of the fluid is as shown in the arrow of FIG. For example, the heat exchanger is injected into the vapor to cause the vapor to flow in one direction in the conduit. The steam heats the surface of the heat exchanger, and the fluid flowing outside the pipe is assimilated by the temperature difference, and the temperature is increased. Conversely, when the pipe is injected with cold water and the fluid temperature is relatively high, heat is taken away from the fluid through the cold water, reducing the temperature of the fluid.

When the retentate is scraped from the filter, a portion of the intercept is deposited on the bottom of the body 1. The bottom of the main body 1 is inverted conical so that the residue can slide down to the residue discharge port 4. The residue discharge port is located at the bottom of the main body 1 and is connected to the valve 14 so that the deposit in the main body 1 can be discharged outside the main body 1 when the valve is opened. The filter chamber and the heat exchange chamber are separated by a partition 15 to prevent the filtered retentate from returning to the fluid circulation system.

The filter unit is designed for easy removal and easy to install, and the filter can be removed for cleaning or replacement. In order to make the main body 1 easy to clean, the top of the main body 1 is open so that the filter can be taken out from the top. The top of the body 1 has an end cap 16 to completely cover the opening at the top of the body 1. The end cap, the filter screen, the cylinder, and the spindle connected thereto are mechanically connected into a component, so that when the end cap is mounted on the top of the main body 1, The entire filter device is placed inside the body 1.

A motor 17 is configurable above the end cap to connect to the main shaft. In this embodiment, the motor can be separated from the end cap, and the torque generated by the motor is transferred from the short shaft 19 on the motor to the main shaft by the coupling device 18. After the screws that connect the end caps and the main body are removed, the assembled components connected to the end caps, including the filter screen, the scraper, the motor, and the spindle, can be removed from the main body. The filter is also screwed to the bottom of the end cap. The filter can be further separated from the assembly by removing the screws that connect the filter to the end cap for maintenance and cleaning. When reloading, simply fix the filter to the end cap and reinstall the end cap assembly back into the main body for operation.

Figure 3 shows the arrangement between the filter 8, the doctor blade 9 and the cylinder 10. In addition to the space at the recess 20, the blade permanently contacts the surface of the filter during rotation.

Figure 4 further shows the arrangement between the filter 8, the doctor blade 9 and the cylinder 10 in a three dimensional mode. The filter is partially scraped here to show the position of the scraper. The groove 20 is located on the filter net so that a certain portion of the filter protrudes outward from the uniform cylindrical shape to create a space which cannot be covered by the scraper in the filter. The height of the groove on the filter net is similar to that of the scraper. The purpose is to make the rotation between the scraper and the filter when the rotation in the scraper reaches the position of the groove, and the surface of the scraper can be temporarily separated from the filter by the surface of the scraper. And there is a chance to wash away with the liquid flow, to achieve the beneficial effect of automatic cleaning of the filter.

1‧‧‧ Subject

2‧‧‧ fluid inlet

3‧‧‧ fluid outlet

4‧‧‧Residue discharge

5‧‧‧heat exchanger inlet and outlet throat

6‧‧‧Baffle

7‧‧‧Filter chamber

8‧‧‧Filter

9‧‧‧Scraper

10‧‧‧Cylinder

11‧‧‧ Spindle

12‧‧‧ Heat exchange chamber

13‧‧‧heat exchanger

14‧‧‧ Valve

15‧‧‧Baffle

16‧‧‧End cover

17‧‧‧Motor

18‧‧‧Coupling device

19‧‧‧ Short axis

Claims (13)

A dyeing machine filter having a heat exchange device, the structure comprising a body (1), a filter (8), a scraper (9), a fluid inlet (2), a fluid outlet (3), an end cap (16), a motor ( 17), characterized in that the structure further comprises a heat exchange device installed between the inner wall of the main body (1) and the filter net (8), and the end cover (16) is mounted on the top of the main body (1), the main shaft (11) The scraper (9) and the filter are installed at the same center, and the motor (17) is mounted on the end cover (16) to drive the spindle (11) and the scraper (9) of the spindle (11) to rotate, and the scraping edge is touched when the scraper rotates. The inner wall of the filter. A dyeing machine filter having a heat exchange device according to claim 1, wherein the heat exchange device is composed of a metal structure heat exchanger (13), and the heat exchanger (13) has heat exchange therein. The pipe in which the medium travels, the inlet of the heat exchanger (13) is connected to the steam or water source other than the main body (1), and the outlet of the heat exchanger (13) is connected to the discharge pipe outside the main body (1). A dyeing machine filter having a heat exchange device according to claim 1 or 2, wherein the heat exchanger (13) is a cylindrical structure, the cylinder is composed of an inner wall and an outer wall, and the top is made up of a circle. The annular cover is sealed, and the bottom has a heat exchange medium inlet and an outlet, and the heat exchange medium is injected into the space between the inner wall and the outer wall from the bottom of the cylinder. A dyeing machine filter having a heat exchange device according to claim 1 or 2, wherein the heat exchanger (13) is a coil structure. A dyeing machine filter having a heat exchange device according to claim 1, wherein a filter (8) is disposed inside the heat exchanger (13), and a cylinder (10) is disposed inside the filter. , filter (8) and end The cover (16) is connected, a filter chamber is formed between the inside of the filter and the cylinder, and a heat exchange chamber is formed between the outside of the filter and the wall of the main body. A dyeing machine filter having a heat exchange device according to claim 1, wherein the doctor blade (9) is a spiral blade whose blade edge is in contact with the filter screen when rotated. A dyeing machine filter having a heat exchange device according to claim 1, wherein the doctor blade (9) is a plurality of blades mounted on a rotating shaft. A dyeing machine filter having a heat exchange device according to claim 1, wherein the scraper (9) is fixed to the cylinder (10), and the inner wall of the cylinder (10) has a bracket and a main shaft (11) connection. The dyeing machine filter having a heat exchange device according to claim 1, wherein the filter net (8) has a groove (20), so that the inner wall of the filter net forms a part of the scraper that cannot be touched when rotated. space. A dyeing machine filter having a heat exchange device according to claim 1, wherein the heat exchanger (13) has a plurality of baffles (6) spaced apart from each other in the heat exchanger (13). Within the space. A dyeing machine filter having a heat exchange device according to claim 1, wherein a fluid inlet (2) is disposed under the main body (1), and the fluid inlet (2) is connected to the cylinder (10). There is a residue discharge port (4) at the bottom, and the fluid enters the main body and is filled with the cylinder (10) from above, and then overflows from the top of the cylinder (10). A dyeing machine filter having a heat exchange device according to claim 1, wherein the end cap (16) and the filter net (8) are detachable from the main body (1) Dismantled. A dyeing machine filter having a heat exchange device according to claim 1, wherein the motor (17) is connected to the short shaft (19), and the coupling device (18) is coupled to the short shaft (19) and the main shaft (11). Concentrically connected, the coupling device (18) is a pair of separable plates, and the motor (17) can be removed from the end cap (16).