CN220132555U - Dyeing machine with automatic filter switching function - Google Patents

Abstract

The utility model discloses a dyeing machine with automatic filter switching, which is characterized in that a plurality of filters and heat exchangers are sequentially connected outside a machine body through pipelines, water outlet ends of the heat exchangers are connected with nozzles in the machine body through pipelines, the bottom of the machine body is correspondingly connected with water inlet ends of the filters through main return pipes and a plurality of return pipes separated from the main return pipes, the water outlet ends of the filters are connected with the heat exchangers through the return pipes, valve isolating valves are arranged on the return pipes on two sides of the filters, a main pump is arranged on the main return pipes, a pressure controller is arranged on the filters and is used for monitoring pressure in the filters, and the dyeing machine is used for controlling the valve isolating valves on the return pipes on two ends of the filters according to whether the pressure of the filters exceeds a preset value or not. The dyeing machine realizes the free switching between the filters by controlling the valves on the reflux pipes at the two ends of the filter to open and close simultaneously, thereby avoiding the filter which is blocked by the batting from continuing to work after long-time working and ensuring the dyeing effect.

Description

Dyeing machine with automatic filter switching function

Technical Field

The utility model relates to the field of dyeing machines, in particular to a dyeing machine with an automatically switched filter.

Background

In the dyeing and finishing industry, dyeing machines are indispensable equipment for dyeing cloth, and there are two important cycles, namely, the cycle of cloth and the cycle of dyeing liquor. The circulation of the cloth is to put the cloth stitched from the head to the tail into a dyeing machine, the nozzle sprays dye liquor onto the cloth for dyeing, the cloth is pushed to be conveyed to a cloth storage groove along a cloth guide pipe for stacking dip dyeing, and the cloth is lifted by a cloth lifting wheel to enter the nozzle for circulation until the dyeing is completed. The dye liquor circulation is that the dye liquor flows back to the filter from the liquid return pipe of the dyeing machine for filtering, then enters the heat exchanger for heat exchange, adjusts the temperature of the dye liquor, and then enters the nozzle of the dyeing machine through the nozzle adjusting valve, so the filter is a key device for protecting the dye liquor circulation system, and can separate and remove residues in the dye liquor, thereby avoiding damaging the water pump and other machine components with precise structures.

When the existing dyeing machine is used for dyeing more cloth with wool and cotton flannel and the like, a large amount of residual wool and cotton flannel in the backflow dye liquor is easy to block a filter screen of the filter, so that the backflow dye liquor is less, the spray nozzle spray pressure is reduced, even no dye liquor flows back, the cloth cannot run, color patterns or blocked cloth are generated, the filter screen cannot be removed during high-temperature dyeing, the dyeing efficiency is low, and the dyeing quality is affected.

Disclosure of Invention

The utility model provides a dyeing machine with a reasonable structure for automatically switching a filter, which controls the opening and closing of a valve on a return pipe of the filter by detecting the pressure in the filter, thereby automatically switching different filter works, avoiding cleaning the filter screen of the filter during high-temperature dyeing, and improving dyeing efficiency.

The technical scheme adopted by the utility model has the following beneficial effects:

the utility model provides a dyeing machine of filter automatic switch-over, its organism has connected gradually a plurality of filters and heat exchanger through the pipeline outward, and the play water end of heat exchanger passes through the pipeline and is connected with the nozzle in the organism, the organism bottom with a plurality of back flow that divide on through main back flow and the main back flow between the filter water inlet end correspond to be connected, the play water end of filter all is connected with the heat exchanger through the back flow, all install on the back flow of filter both sides and separate the valve, install the main pump on the main back flow, the filter is installed pressure controller and is used for monitoring filter internal pressure, the dyeing machine is opened and close when controlling separating the valve on the back flow of filter both ends according to whether the filter pressure exceeds the default.

As a further improvement of the above technical scheme:

the filter is provided with two, namely a first filter and a second filter, the water inlet ends of the first filter and the second filter are respectively connected to the main return pipe through a first return pipe and a third return pipe, the first return pipe and the third return pipe are respectively provided with a first isolation valve and a third isolation valve, the water outlet ends of the first filter and the second filter are respectively connected to the heat exchanger through a second return pipe and a fourth return pipe, the second isolation valve and the fourth isolation valve are respectively arranged on the second return pipe and the fourth return pipe, when the first filter works, the first isolation valve and the second isolation valve are simultaneously opened, the third isolation valve and the fourth isolation valve are simultaneously closed, and when the second filter works, the first isolation valve and the second isolation valve are simultaneously closed, and the third isolation valve and the fourth isolation valve are simultaneously opened.

The dyeing machine detects whether the pressure in the filter exceeds a preset value, and the valve is opened and closed simultaneously through control on the back flow pipes at the two ends of the filter, so that free switching between the filters is realized, the filter which is blocked by the flock and still works continuously after long-time working is avoided, the back flow is ensured to circulate to the spray pressure of dye liquor in the nozzle, the dyeing effect is ensured, the filter screen can be prevented from being stopped to be worked and cleaned during dyeing, the dyeing efficiency is improved, the valve is arranged on the back flow pipe at the water outlet end of the filter, the valve is closed when the filter does not work, and the dye liquor in the heat exchanger is prevented from flowing back into the filter.

The first return pipe is arranged above the first isolating valve, the first return branch pipe is extended out of the first isolating valve, the second return branch pipe is extended out of the third return pipe and is arranged above the third isolating valve, the other ends of the first return branch pipe and the second return branch pipe are connected to the main return pipe at the front side of the main pump, the first return valve and the second return valve are respectively arranged on the first return branch pipe and the second return branch pipe, the first return valve and the second return valve are switched to be opened when the first filter works, the second return valve is switched to be opened when the second filter works, and the first return valve is switched to be opened.

When the filter is switched to other filters for operation, the two isolating valves of the filter which works before are closed, and the water return valve is opened in a delayed manner, so that the residual water in the filter can flow back into the machine body, and the dye is saved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a top view of the present utility model.

In the figure: 1. a body; 2. a main return pipe; 3. a first filter; 31. a first pressure controller; 4. a first return pipe; 5. a first isolation valve; 6. a second return pipe; 7. a second isolation valve; 8. a first return branch; 9. a first water return valve; 10. a second filter; 101. a second pressure controller; 11. a third return line; 12. a third isolation valve; 13. a fourth return line; 14. a fourth isolation valve; 15. a second return branch; 16. a second water return valve; 17. a main pump; 18. a heat exchanger.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

As shown in fig. 1 and 2, the present utility model provides a dyeing machine with automatically switched filters, wherein one side of the dyeing machine is provided with a filter, the water inlet end of the filter is connected to the bottoms of two machine bodies 1 through a pipeline, the water outlet end of the filter is connected to a heat exchanger 18 through a pipeline, and the heat exchanger 18 is connected to nozzles (not shown in the figure) in the two machine bodies 1 through pipelines respectively.

In the present embodiment, the filters are provided in two, i.e., the first filter 3 and the second filter 10, and the first pressure controller 31 and the second pressure controller 101 are respectively provided therein for detecting the pressures of the two filters so as to monitor in real time whether the filter screen of the filter is clogged. The bottom of the machine body 1 is correspondingly connected with the water inlet ends of the two filters through a main return pipe 2 and a first return pipe 4 and a third return pipe 11 which are separated from the main return pipe 2, a main pump 17 is arranged on the main return pipe 2, and a first isolation valve 5 and a third isolation valve 12 are respectively arranged on the first return pipe 4 and the third return pipe 11. The water outlet ends of the first filter 3 and the second filter 10 are connected to the heat exchanger 18 through a second return pipe 6 and a fourth return pipe 13, respectively, and the second return pipe 6 and the fourth return pipe 13 are provided with a second isolation valve 7 and a fourth isolation valve 14, respectively. The first return pipe 4 is positioned above the first isolating valve 5 and extends out of the first return branch pipe 8, the third return pipe 11 is positioned above the third isolating valve 12 and extends out of the second return branch pipe 15, the other ends of the first return branch pipe 8 and the second return branch pipe 15 are connected to the main return pipe 2 at the front side of the main pump 17, and the first return valve 9 and the second return valve 16 are respectively arranged on the first return branch pipe 8 and the second return branch pipe 15.

When the dyeing machine performs high-temperature dyeing, the first filter 3 works, at the moment, the first isolation valve 5 and the second isolation valve 7 are simultaneously opened, the third isolation valve 12 and the fourth isolation valve 14 are simultaneously closed, the first water return valve 9 and the second water return valve 16 are simultaneously closed, dye in the machine body 1 is pumped by the main pump 17, and sequentially flows back to the nozzle along the main return pipe 2, the first return pipe 4, the first filter 3, the second return pipe 6 and the heat exchanger 18 to circulate, after long-time working, if a filter screen of the first filter 3 is blocked by cloth flock, the first pressure controller 31 detects that the pressure in the first filter 3 is lower than a set pressure, the first isolation valve 5 and the second isolation valve 7 are simultaneously closed, dye in the heat exchanger 18 is prevented from flowing back to the first filter 3, and the third isolation valve 12 and the fourth isolation valve 14 are simultaneously opened, so that the dye in the machine body 1 can be switched to work as the second filter 10, and the dye in the machine body 1 sequentially flows back to the nozzle along the main return pipe 2, the third return pipe 11, the second filter 10, the fourth filter 13 and the heat exchanger 18 to circulate, after a long-time working, after the return pipe is opened, the first return pipe 3 is delayed, the dye in the first filter 3 is returned to the first filter 3 and the main pump 3 is recycled through the main pump 3, and the water is recycled after the filter 3 is recovered, and the dye in the machine body is recovered after the first filter 3 is recovered by the filter through the main pump 3; if the pressure of the second filter 10 is lower than the set pressure, the same switching step as that of the first filter 3 can be performed, and the filter can be automatically switched by simultaneously opening and closing the valves of the water return pipes at the two ends of the filter, so that the filter screen blocked in the filter can be prevented from being cleaned during high-temperature dyeing, and the dyeing efficiency can be improved.

The above description is illustrative of the utility model and is not intended to be limiting, and the utility model may be modified in any form without departing from the spirit of the utility model.

Claims (3)

1. The utility model provides a dyeing machine of filter automatic switch-over, its organism (1) has connected gradually a plurality of filters and heat exchanger (18) through the pipeline outward, and the play water end of heat exchanger (18) is connected its characterized in that through the nozzle in pipeline and organism (1): the bottom of the machine body (1) is correspondingly connected with the water inlet end of the filter through a main return pipe (2) and a plurality of return pipes separated from the main return pipe (2), the water outlet end of the filter is connected with a heat exchanger (18) through return pipes, valves are arranged on the return pipes on two sides of the filter, a main pump (17) is arranged on the main return pipe (2), a pressure controller is arranged on the filter and used for monitoring the pressure in the filter, and the dyeing machine controls the valves on the return pipes on two ends of the filter to open and close when the valves are arranged on the return pipes on two ends of the filter according to whether the pressure of the filter exceeds a preset value.

2. The automatic filter switching dyeing machine according to claim 1, wherein: the filter is provided with two, namely a first filter (3) and a second filter (10), the water inlet ends of the first filter (3) and the second filter (10) are respectively connected to the main return pipe (2) through a first return pipe (4) and a third return pipe (11), a first isolation valve (5) and a third isolation valve (12) are respectively arranged on the first return pipe (4) and the third return pipe (11), the water outlet ends of the first filter (3) and the second filter (10) are respectively connected to the heat exchanger (18) through a second return pipe (6) and a fourth return pipe (13), a second isolation valve (7) and a fourth isolation valve (14) are respectively arranged on the second return pipe (6) and the fourth return pipe (13), when the first filter (3) works, the first isolation valve (5) and the second isolation valve (7) are simultaneously opened, the third isolation valve (12) and the fourth isolation valve (14) are simultaneously closed, and when the second filter (10) works, the first isolation valve (5) and the second isolation valve (7) and the third isolation valve (12) are simultaneously opened.

3. The automatic filter switching dyeing machine according to claim 2, wherein: the first return pipe (4) is provided with a first return branch pipe (8) which is arranged above the first isolating valve (5), the third return pipe (11) is provided with a second return branch pipe (15) which is arranged above the third isolating valve (12), the other ends of the first return branch pipe (8) and the second return branch pipe (15) are connected to the main return pipe (2) at the front side of the main pump (17), the first return pipe (8) and the second return pipe (15) are respectively provided with a first return valve (9) and a second return valve (16), when the first filter (3) is switched to work, the second return valve (16) is opened, and when the second filter (10) is switched to work, the first return valve (9) is opened.