CN105200686B - Supercritical fluid is to spray dyeing installation - Google Patents

Abstract

The invention relates to the field of textile dyeing equipment, in particular to a supercritical fluid jet dyeing equipment. It is composed of cleaning unit, counter-jet dyeing unit, rinsing unit, reflux device, working fluid air seal unit, air air seal unit, connecting plate, sealing box body, seal and pressure regulating valve; according to the process flow of supercritical fluid counter-jet dyeing , install air sealing unit, working fluid sealing unit, reflux, cleaning unit, reflux, working fluid sealing unit, reflux, spray dyeing unit, reflux, working fluid sealing unit, reflux, rinsing unit, reflux device, working fluid air seal unit, air air seal unit. The supercritical fluid of the present invention is sprayed to the dyed object from both sides at the same time, the fluid injection force is zero, the dyeing is uniform, and the deformation and tension damage to the dyed object under the action of high-pressure jet are eliminated; the air seal of step-by-step decompression is adopted The structure realizes continuous dyeing, and its structure is simple, compact and excellent in manufacturability.

Description

Supercritical fluid jet dyeing equipment

1. Technical field

The invention relates to the field of textile dyeing equipment, in particular to a supercritical fluid jet dyeing equipment.

2. Technical background

The problem of water pollution seriously restricts the development of traditional dyeing industry. Supercritical fluid dyeing uses supercritical fluid, especially supercritical carbon dioxide instead of water as the dye carrier to achieve anhydrous dyeing, thereby fundamentally solving the problem of water pollution in the dyeing industry, and has a good development and application prospect.

Summarizing the characteristics of the existing supercritical fluid dyeing devices, it can be seen that due to the characteristics of the supercritical fluid itself, the dyeing device for supercritical fluid dyeing must use high-pressure equipment, and the sealing performance of the dyeing device is also very high. Very good quick opening or reversing structure, which increases the complexity of the device structure and investment cost, and cannot achieve continuous dyeing in large quantities, which seriously restricts the popularization and application of this new technology.

The Patent Office of the State Intellectual Property Office of China authorized a patent with the announcement number CN101798735B and the name "Supercritical Fluid Spraying Device" on November 23, 2011. This device integrates supercritical fluid spraying technology and traditional spraying technology. The advantage is that it overcomes the disadvantage that the existing supercritical fluid dyeing device must use a high-pressure dyer. Subsequently, the Patent Office of the State Intellectual Property Office of China published a notification number CN103981661A on August 13, 2014, named "a new type of injector for supercritical fluid spraying" and authorized it on September 30, 2015. A patent with a notification number of CN103866515B and a title of "a injector for supercritical fluid spraying and dyeing" has made some improvements to the problems existing in supercritical fluid spraying and dyeing technology. However, the problem in the above three patents is that the dyed object cannot be sprayed on both sides at the same time, and there is a color difference between the two sides of the dyed object; in addition, under the action of the high-speed jet, the dyed object may be damaged or affect the final printing due to excessive deformation. dye effect.

3. Contents of the invention

The purpose of the present invention is to overcome the defects existing in the existing supercritical fluid jet dyeing equipment, and provide a supercritical fluid counterjet dyeing equipment with simple process flow, high production efficiency, good level dyeing property and no damage to the dyed object.

The technical scheme of the present invention is composed of a cleaning unit, a counter-jet dyeing unit, a rinsing unit, a reflux device, a working fluid air sealing unit, an air air sealing unit, a connecting plate, a sealing box body, a sealing member and a pressure regulating valve.

The cleaning unit or counter-jet dyeing unit or rinsing unit is composed of one or more counter jets with the same structure. When it is composed of two or more counter jets, the counter jets are connected to each other through a connecting plate. The number is determined by the specific dyeing process conditions; the counter sprayer is composed of a pair of semi-cylindrical counter spray tubes and a pair of distribution plates. Supercritical fluid inlet pipes are respectively arranged on the two corresponding paired spray barrels; the ends of the two semi-cylindrical paired spray barrels after pairing and combination are respectively installed with heads; the connecting plate is a paired combination structure, respectively The semi-cylindrical pairs of the nozzles are connected correspondingly to the axial edges at the paired combination of the nozzles, and the two pairs of sides of the paired connecting plates along the direction of the dyeing process are respectively sealed and connected to each other; the gap between the paired combined distribution plates and the matching The gap between the combined connecting plates constitutes the channel of the dyed material.

The reflux device is composed of a pair of paired semi-cylindrical return cylinders, and working fluid outlet pipes are respectively arranged at the centers of the two corresponding semi-cylindrical return cylinders; The ends are respectively installed with heads; the space between the two paired and combined return cylinders constitutes the channel of the dyed material.

The working fluid air seal unit or air air seal unit is composed of one or more air seals with the same structure. When it is composed of two or more air seals, the air seals are connected to each other through the sealing box. The number is determined by the sealing characteristics of the seals in the specific sealing box; the air sealer is composed of a pair of paired semi-cylindrical air seal cylinders, and fluid inlet pipes are respectively arranged at the centers of the two paired combination air seal cylinders; after pairing and combination The two ends of the two semi-cylindrical air sealing cylinders are respectively equipped with sealing heads; the sealing body is a paired combination structure, which is respectively connected with the axial edges of the paired combination of the semi-cylindrical air sealing cylinders of the air sealer, and the paired Install paired and combined seals in the sealing box; the two pairs of sides of the paired and combined sealing box along the direction of the dyeing process are respectively sealed and connected to each other; the gap between the paired and combined seals and the space between the paired and combined air seal cylinders Constitute the channel of the dyed object.

According to the supercritical fluid spray dyeing process, install the air air seal unit, working fluid air seal unit, reflux device, cleaning unit, reflux device, working fluid air seal unit, reflux device, spray dyeing unit, reflux device, working Fluid air seal unit, reflux device, rinsing unit, reflux device, working fluid air seal unit, air air seal unit; the connection between the reflux device and the cleaning unit or the spray dyeing unit or the spray nozzle of the rinsing unit through pairing and combination The plate connects the axial edge of the paired combination of the semi-cylindrical return barrel of the reflux device to the axial edge of the paired combination of the semi-cylindrical counter-spray barrel of the counter-injector; Between the devices, the axial edge of the paired combination of the semi-cylindrical air seal cylinder of the gas sealer is connected to the axial edge of the paired combination of the semi-cylindrical return cylinder of the reflux device through the paired and combined sealing body; the working fluid Between the air sealer of the air seal unit and the air sealer of the air seal unit, the axial edges of the semi-cylindrical air seal cylinders of the air sealer are connected correspondingly through the paired combination of sealing boxes; along the process flow In the direction of the first air sealer of the first air seal unit or the pairing combination of the half-cylindrical air seal cylinder on the side that is not connected with other air sealers in the last air sealer of the second air seal unit The axial edge of the paired and combined sealing box body is installed; the two pairs of sides of the paired and combined sealing box body along the direction of the dyeing process are respectively sealed and connected to each other; The gaps between the seals in the body constitute the contaminant passage.

Each supercritical fluid inlet pipe in the cleaning unit or rinsing unit, and each working fluid inlet pipe in the working fluid air seal unit are connected with the pipeline of the supercritical fluid generation subsystem, and another part of the supercritical fluid generation subsystem The side pipeline is connected to the pipeline of the working fluid storage subsystem; each supercritical fluid inlet pipe in the counter-jet dyeing unit is connected to the pipeline of the dye dissolving subsystem, and the other side pipeline of the dye dissolving subsystem is connected to the supercritical fluid The pipelines of the generation subsystem are connected; the fluid inlet pipe of the air seal unit is connected with the air compression equipment; the working fluid outlet pipe of the reflux at both ends of the cleaning unit is connected with the pipeline of the impurity separation subsystem. The working fluid outlet pipe of the reflux at both ends of the spray dyeing unit or the rinsing unit is connected with the pipeline of the dye separation subsystem, and the other side pipeline of the working fluid and impurity separation subsystem and the working fluid and dye separation subsystem The pipelines on the other side are connected with the pipelines of the working fluid storage subsystem.

Pressure regulating valves are respectively installed at the supercritical fluid inlet pipe of the injector, the working fluid outlet pipe of the reflux device, the fluid inlet pipe of the working fluid air seal unit, and the fluid inlet pipe of the air air seal unit.

The excellent effect produced by the invention: the supercritical fluid is sprayed to the dyed object from both sides at the same time, so that the dyeing is uniform, and the fluid injection force acting on the dyed object is offset to zero, effectively eliminating the damage to the dyed object under the action of high-pressure jet. The resulting deformation and tension failure, while adopting the air-sealed structure of step-by-step decompression, truly realize continuous dyeing. Its structure is simple, tight, and excellent in manufacturability.

4. Description of drawings

Fig. 1 is the structural representation of injector of the present invention;

Fig. 2 is the structural representation of the reflux device of the present invention;

Fig. 3 is a schematic structural view of the air sealer of the present invention;

Fig. 4 is the overall structural schematic diagram of the combination of a single pair of injectors and a single air sealer of the present invention;

Fig. 5 is a schematic diagram of the overall structure of the combination of double pairs of injectors and double air sealers of the present invention;

Fig. 6 is a schematic diagram of the overall structure of the combination of three pairs of injectors and three air sealers of the present invention;

Fig. 7 is a schematic flow diagram of the jet dyeing process implemented by the present invention.

Reference signs:

1. The dyed object 2, the opposite sprayer 2-1-1, the opposite spray barrel A 2-1-2, the opposite spray barrel B 2-2-1, the supercritical fluid inlet pipe A2-2-2, the supercritical fluid inlet Pipe B 2-3-1, distribution plate A 2-3-2, distribution plate B 3-1, connection plate A 3-2, connection plate B4, reflux device 4-1-1, reflux cylinder A 4-1- 2. Return cylinder B 4-2-1, working fluid outlet pipe A 4-2-2, working fluid outlet pipe B 5, gas sealer 5-1-1, gas seal cylinder A 5-1-2, gas seal cylinder B 5-2-1, fluid inlet pipe A 5-2-2, fluid inlet pipe B6-1, sealing body A 6-2 sealing body B 7-1, seal A 7-2 seal B 8, pressure Regulating valve 8-1, pressure regulating valve A 8-2, pressure regulating valve B 8-3, pressure regulating valve C 8-4, pressure regulating valve D 9, cleaning unit 10, counter jet dyeing unit 11, rinsing unit 12, Working fluid air sealing unit 13, air air sealing unit 14, working fluid storage subsystem 15, supercritical fluid generation subsystem 16, dye dissolving subsystem 17, working fluid and impurity separation subsystem 18, working fluid and dye separation subsystem 19. Air compression equipment.

5. Specific implementation

The implementation process of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment 1: A supercritical fluid jet dyeing equipment combined with a single injector and a single air sealer, as shown in Figures 1 to 4.

The supercritical fluid counter-jet dyeing equipment consists of a cleaning unit 9, a counter-jet dyeing unit 10, a rinsing unit 11, a reflux device 4, a working fluid air seal unit 12, an air air seal unit 13, a paired connection plate A3-1 and a connection plate B3-2, sealing body A 6-1 and sealing body B6-2 of matching structure, sealing member A7-1, sealing member B7-2 and pressure regulating valve 8 are formed.

According to the requirements of the dyeing process conditions, it is determined that the cleaning unit 9 or the counter-spray dyeing unit 10 or the rinsing unit 11 is composed of a counter-spray 2 with the same structure; 1-1 and pair of spray tube B2-1-2, a pair of distribution plate A2-3-1 and distribution plate B2-3-2, in the pair of spray tube A2-1-1 and pair of spray tube B2-1-2 The distribution plate A2-3-1 and the distribution plate B2-3-2 are respectively installed at the split surface of the diameter of the distribution plate A2-3-1 and the center of the distribution plate B2-3-2. -1 and the pair of spray barrels B2-1-2 are respectively provided with supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2; two semi-cylindrical pair of spray barrels after pairing and combination A2-1-1 and the two ends of the spray barrel B2-1-2 are respectively installed with heads; the gap between the paired distribution plate A2-3-1 and the distribution plate B2-3-2 constitutes the dyed object 1 channel.

The reflux device 4 is composed of a pair of semi-cylindrical return cylinders A4-1-1 and B4-1-2, and a working fluid outlet pipe A4-2- is set in the middle of the return cylinder A4-1-1. 1. Set the working fluid outlet pipe B4-2-2 in the middle of the return cylinder B4-1-2, and pair and combine the two semi-cylindrical return cylinders A4-1-1 and the return cylinder B4-1-2 Heads are respectively installed at both ends; the space between the paired return cylinder A4-1-1 and the return cylinder B4-1-2 constitutes the channel of the dyed object 1.

According to the sealing characteristics of the seals in the sealed box, it is determined that the working fluid air seal unit 12 or the air air seal unit 13 is composed of an air sealer 5; the air sealer 5 is composed of a pair of semi-cylindrical air seal cylinders A5- 1-1 and air seal cylinder B5-1-2, the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2 are respectively arranged at the central positions of the paired air seal cylinder A5-1-1 and air seal cylinder B5-1-2 -2; Two semi-cylindrical air sealing cylinders A5-1-1 and air sealing cylinder B5-1-2 after pairing and combination are respectively installed with sealing heads at both ends; paired and combined air sealing cylinder A5-1-1 and air sealing cylinder B5 The space between -1-2 constitutes the passage of dyed object 1.

The connection relationship of each unit of the present invention: along the running direction of the dyed object 1, the air seal unit 13, the working fluid seal unit 12, the return device 4, the cleaning unit 9, the return device 4, the work fluid seal unit 12, Reflux device 4, counter jet dyeing unit 10, reflux device 4, working fluid air seal unit 12, reflux device 4, rinsing unit 11, reflux device 4, working fluid air seal unit 12, air air seal unit 13; reflux device 4 and Between the cleaning unit 9 or the counter jet dyeing unit 10 or the counter jet 2 of the rinsing unit 11, the semi-cylindrical reflux barrel A4-1 of the reflux device 4 is connected by the connecting plate A3-1 and the connecting plate B3-2 of the matching combination. -1 and the axial edge of the pairing combination of the return cylinder B4-1-2 and the semi-cylindrical pairing of the spraying barrel A 2-1-1 and the pairing combination of the spraying barrel B 2-1-2 of the sprayer 2 The axial edges are correspondingly connected; between the air sealer 5 and the reflux device 4 of the working fluid air seal unit 12, the half cylinder of the air sealer 5 is sealed by the paired and combined sealing box body A6-1 and sealing box body A6-2 The axial edge of the paired combination of the air seal cylinder A5-1-1 and the air seal cylinder B5-1-2 and the paired combination of the semi-cylindrical return cylinder A4-1-1 and the return cylinder B4-1-2 of the reflux device 4 The corresponding connection of the axial edges; between the air sealer 5 of the working fluid air seal unit 12 and the air sealer 5 of the air seal unit 13, the sealing body A 6-1 and the sealing body A 6- 2 Correspondingly connect the axial edges of the semi-cylindrical air sealing cylinder A5-1-1 and the air sealing cylinder B5-1-2 of the gas sealing device 5; the first air sealing unit 13 along the direction of the process flow The semi-cylindrical air seal cylinder A5-1-1 and air seal cylinder B5 on the side not connected with other air seal devices 5 in the last air seal device 5 of the first air seal device 5 or the second air seal unit 13 -1-2 The axial edges of the paired combination are respectively installed with the sealing box body A6-1 and the sealing box body A6-2; the paired combination of the sealing box body A6-1 and the sealing box body A6-2 The opposite sides are respectively sealed and connected to each other; the sealing element A7-1 and the sealing element B7-2 are respectively installed in the sealing box body A6-1 and the sealing box body A6-2 of the pairing combination, and the sealing element B7-2 in the sealing box body A6-1 of the pairing combination The gap between the sealing member A7-1 and the sealing member B7-2 in the sealing box body B6-2 constitutes the passage of the dyed object 1 .

Each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 in the cleaning unit 9 or rinsing unit 11, and each fluid inlet pipe A5-2-1 in the working fluid air seal unit 12 and the fluid inlet pipe B5-2-2 are all connected with the pipeline of the supercritical fluid generation subsystem 15, and the other side pipeline of the supercritical fluid generation subsystem 15 is connected with the pipeline of the working fluid storage subsystem 14; In the dyeing unit 10, each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 are connected with the pipeline of the dye dissolving subsystem 16, and the other side pipeline of the dye dissolving subsystem 16 is connected with the supercritical fluid inlet pipe B2-2-2. The pipeline connection of the critical fluid generation subsystem 15; the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13 are connected to the air compression equipment 19; the reflux devices 4 on both sides of the cleaning unit 9 The working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected with the pipeline of the working fluid and the impurity separation subsystem 17, and the work of the reflux devices 4 on both sides of the spray dyeing unit 10 and the cleaning unit 9 The fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected with the pipeline of the working fluid and the dye separation subsystem 18, the other side pipeline of the working fluid and the impurity separation subsystem 17 and the working fluid and the dye separation subsystem 17. The pipelines on the other side of the dye separation subsystem 18 are connected to the pipelines of the working fluid storage subsystem 14 .

Install the pressure regulating valve A8-1 at the supercritical fluid inlet pipe A2-2-1 and the supercritical fluid inlet pipe B2-2-2 of the sprayer 2; the working fluid outlet pipe A4-2-1 and A pressure regulating valve B8-2 is installed on the working fluid outlet pipe B4-2-2; a pressure regulating valve C8-3 is installed on the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the working fluid air seal unit 12; A pressure regulating valve D8-4 is installed at the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13, respectively.

Embodiment 2: A supercritical fluid jet dyeing equipment combined with double injectors and double air sealers, as shown in Figures 1 to 3 and 5.

The supercritical fluid counter-jet dyeing equipment consists of a cleaning unit 9, a counter-jet dyeing unit 10, a rinsing unit 11, a reflux device 4, a working fluid air seal unit 12, an air air seal unit 13, a paired connection plate A3-1 and a connection plate B3-2, sealing body A6-1 and sealing body B6-2 of matching structure, sealing member A7-1, sealing member B7-2 and pressure regulating valve 8 are formed.

According to the requirements of the dyeing process conditions, it is determined that the cleaning unit 9 or the counter-jet dyeing unit 10 or the rinsing unit 11 is composed of two counter-sprayers 2 with the same structure, and the connecting plate A 3- 1 and the connection plate B 3-2; the sprayer 2 is composed of a pair of paired semi-cylindrical spray barrels A 2-1-1 and spray barrels B2-1-2, and a pair of distribution plates A2- 3-1 and the distribution plate B2-3-2, the distribution plate A2-3-1 and the distribution plate B2 are respectively installed at the diameter split surfaces of the spray barrel A2-1-1 and the spray barrel B2-1-2 -3-2, the supercritical fluid inlets are respectively set on the opposite spray barrel A2-1-1 and the opposite spray barrel B2-1-2 in the center of the distribution plate A2-3-1 and the distribution plate B2-3-2 Pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2; two semi-cylindrical pairs of spray tubes A2-1-1 and two ends of the pair of spray tubes B2-1-2 after pairing and combination The heads are installed separately; the connecting plate A3-1 and the connecting plate A3-2 of the matching structure are respectively combined with the semi-cylindrical counter-spray barrel A2-1-1 and counter-spray barrel B2-1-2 of the counter-sprayer 2 The axial edges of the paired combination of connecting plate A3-1 and connecting plate A3-2 are connected to each other in a sealed manner along the direction of the dyeing process; the paired combination of distribution plate A2-3-1 and distribution plate The gap between B2-3-2 and the gap between the paired connecting plates A3-1 and A3-2 constitute the channel of the dyed object 1 .

The reflux device 4 is composed of a pair of semi-cylindrical return cylinders A4-1-1 and B4-1-2, and a working fluid outlet pipe A4-2- is set in the middle of the return cylinder A4-1-1. 1. Set the working fluid outlet pipe B4-2-2 in the middle of the return cylinder B4-1-2, and pair and combine the two semi-cylindrical return cylinders A4-1-1 and the return cylinder B4-1-2 Heads are respectively installed at both ends; the space between the paired return cylinder A4-1-1 and the return cylinder B4-1-2 constitutes the channel of the dyed object 1.

According to the sealing characteristics of the seal A7-1 in the seal box A6-1 and the seal B7-2 in the seal box B6-2, it is determined that the working fluid air seal unit 12 or the air air seal unit 13 is composed of two air seals. The air sealer 5 is composed of two air sealers 5 connected by the sealing box A6-1 and the sealing box A6-2 of the paired structure; the air sealer 5 is composed of a pair of paired semi-cylindrical air sealer A5 -1-1 and air sealing cylinder B5-1-2, the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5- 2-2; Two semi-cylindrical air sealing cylinders A5-1-1 and air sealing cylinder B5-1-2 after pairing and combination are installed with heads respectively; the sealing box body A6-1 and sealing box The body A6-2 is respectively connected to the axial edges of the paired combination of the semi-cylindrical air seal cylinder A5-1-1 and the air seal cylinder B5-1-2 of the air sealer 2, and the paired combination of the sealed box body A6-1 and The two pairs of sides of the sealing box body A 6-2 along the direction of the dyeing process are respectively sealed and connected to each other; the sealing box body A6-1 and the sealing box body A 6-2 are respectively installed with a sealing piece A7-1 and a sealing piece A7-2 ; The gap between the seal A7-1 in the sealed box A6-1 and the seal B7-2 in the sealed box B6-2 and the paired combination of the air seal cylinder A4-1-1 and the air seal cylinder B4- The space between 1-2 constitutes the channel of the dyed object 1.

The connection relationship of each unit of the present invention: along the running direction of the dyed object 1, the air seal unit 13, the working fluid seal unit 12, the return device 4, the cleaning unit 9, the return device 4, the work fluid seal unit 12, Reflux device 4, counter jet dyeing unit 10, reflux device 4, working fluid air seal unit 12, reflux device 4, rinsing unit 11, reflux device 4, working fluid air seal unit 12, air air seal unit 13; reflux device 4 and Between the cleaning unit 9 or the counter jet dyeing unit 10 or the counter jet 2 of the rinsing unit 11, the semi-cylindrical reflux barrel A4-1 of the reflux device 4 is connected by the connecting plate A3-1 and the connecting plate B3-2 of the matching combination. -1 and the axial edge of the paired combination of the return cylinder B4-1-2 and the axial direction of the paired combination of the semi-cylindrical paired nozzle A2-1-1 and the paired nozzle B2-1-2 of the sprayer 2 The edges are correspondingly connected; between the air sealer 5 and the reflux device 4 of the working fluid air seal unit 12, the semi-cylindrical half-cylindrical air sealer 5 is sealed by the paired and combined sealing body A6-1 and sealing body A6-2. The axial edge of the paired combination of the air seal cylinder A5-1-1 and the gas seal cylinder B5-1-2 and the shaft of the semi-cylindrical return cylinder A4-1-1 and the return cylinder B4-1-2 of the reflux device Correspondingly connected to the edge; between the air sealer 5 of the working fluid air seal unit 12 and the air sealer 5 of the air seal unit 13, the air seal is sealed by the paired combination of the sealing body A6-1 and the sealing body A6-2 The axial edges of the semi-cylindrical air sealing cylinder A5-1-1 and the air sealing cylinder B5-1-2 of the device 5 are connected correspondingly; the first air sealing unit 13 along the direction of the process flow Semi-cylindrical air seal cylinder A5-1-1 and air seal cylinder B5-1-2 on the side that is not connected to other air seal devices 5 in the last air seal device 5 of the sealer 5 or the second air seal unit 13 The axial edges of the paired combination place are respectively equipped with sealing box body A6-1 and sealing box body A6-2; Mutual airtight connection; seal A7-1 and seal B7-2 are respectively installed in the paired sealed box body A6-1 and sealed box body A6-2, and the seal A7-1 in the paired combined sealed box body A6-1 1 and the seal B7-2 in the sealing box body B6-2 constitute the channel of the dyed object 1.

Each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 in the cleaning unit 9 or rinsing unit 11, and each fluid inlet pipe A5-2-1 in the working fluid air seal unit 12 and the fluid inlet pipe B5-2-2 are all connected with the pipeline of the supercritical fluid generation subsystem 15, and the other side pipeline of the supercritical fluid generation subsystem 15 is connected with the pipeline of the working fluid storage subsystem 14; In the dyeing unit 10, each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 are connected with the pipeline of the dye dissolving subsystem 16, and the other side pipeline of the dye dissolving subsystem 16 is connected with the supercritical fluid inlet pipe B2-2-2. The pipeline connection of the critical fluid generation subsystem 15; the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13 are connected to the air compression equipment 19; the reflux devices 4 on both sides of the cleaning unit 9 The working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected with the pipeline of the working fluid and the impurity separation subsystem 17, and the work of the reflux devices 4 on both sides of the spray dyeing unit 10 and the cleaning unit 9 The fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected with the pipeline of the working fluid and the dye separation subsystem 18, the other side pipeline of the working fluid and the impurity separation subsystem 17 and the working fluid and the dye separation subsystem 17. The pipelines on the other side of the dye separation subsystem 18 are connected to the pipelines of the working fluid storage subsystem 14 .

Install the pressure regulating valve A8-1 at the supercritical fluid inlet pipe A2-2-1 and the supercritical fluid inlet pipe B2-2-2 of the sprayer 2; the working fluid outlet pipe A4-2-1 and A pressure regulating valve B8-2 is installed on the working fluid outlet pipe B4-2-2; a pressure regulating valve C8-3 is installed on the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the working fluid air seal unit 12 ; Install the pressure regulating valve D8-4 at the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13 respectively.

Embodiment 3: The supercritical fluid counterjet dyeing equipment combined with three injectors and three air sealers, as shown in Fig. 1 to Fig. 3 and Fig. 6 .

The supercritical fluid counter-jet dyeing equipment consists of a cleaning unit 9, a counter-jet dyeing unit 10, a rinsing unit 11, a reflux device 4, a working fluid air seal unit 12, an air air seal unit 13, a connecting plate A 3-1 of a paired structure and connecting The plate B3-2, the sealing body A6-1 and the sealing body B6-2 of the matching structure, the sealing member A7-1, the sealing member B7-2 and the pressure regulating valve 8 are composed.

According to the requirements of the dyeing process conditions, it is determined that the cleaning unit 9 or the counter-spray dyeing unit 10 or the rinsing unit 11 is composed of three counter-sprayers 2 with the same structure, and the connecting plates A3-1 of the paired structure are passed between the three counter-sprayers 2 It is connected with the connecting plate B3-2; the counter sprayer 2 is composed of a pair of semi-cylindrical counter spray barrels A2-1-1 and counter spray barrels B2-1-2, and a pair of distribution plates A2-3- 1 and distribution plate B2-3-2, install distribution plate A2-3-1 and distribution plate B2-3 respectively -2, the supercritical fluid inlet pipe A2 is respectively arranged on the opposite spray barrel A2-1-1 and the opposite spray barrel B2-1-2 in the center of the distribution plate A2-3-1 and the distribution plate B2-3-2 -2-1 and supercritical fluid inlet pipe B2-2-2; two semi-cylindrical pairs of spray tubes A2-1-1 and two ends of the pair of spray tubes B2-1-2 are installed respectively Head; the connecting plate A 3-1 and the connecting plate A3-2 of the matching combination are respectively combined with the semi-cylindrical pairing barrel A2-1-1 and the pairing barrel B2-1-2 of the sprayer 2 The axial edges are correspondingly connected, and the two pairs of sides of the paired connection plate A3-1 and the connection plate A3-2 along the direction of the dyeing process are respectively sealed and connected to each other; the paired combination of the distribution plate A2-3-1 and the distribution plate B2 The gaps between -3-2 and the gaps between the connecting plates A3-1 and A3-2 that are paired and combined form the channel of the dyed object 1.

The reflux device 4 is composed of a pair of semi-cylindrical return cylinders A4-1-1 and B4-1-2, and a working fluid outlet pipe A4-2- is set in the middle of the return cylinder A4-1-1. 1. Set the working fluid outlet pipe B4-2-2 in the middle of the return cylinder B4-1-2, and pair and combine the two semi-cylindrical return cylinders A4-1-1 and the return cylinder B4-1-2 Heads are respectively installed at both ends; the space between the paired return cylinder A4-1-1 and the return cylinder B4-1-2 constitutes the channel of the dyed object 1.

According to the sealing characteristics of the seal A7-1 in the seal box A6-1 and the seal B7-2 in the seal box B6-2, it is determined that the working fluid air seal unit 12 and the air air seal unit 13 are composed of three air seal units. The air sealer 5 is composed of three air sealers 5 connected by the sealing box body A6-1 and the sealing box body A6-2 of the paired structure; -1-1 and air sealing cylinder B5-1-2, the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5- 2-2; Two semi-cylindrical air seal cylinders A 5-1-1 and two ends of the air seal cylinder B5-1-2 after pairing and combination are respectively installed with heads; The box body A6-2 is respectively connected with the axial edges of the semi-cylindrical air sealing cylinder A5-1-1 and the gas sealing cylinder B5-1-2 of the air sealer 2 in the matching combination, and the paired and combined sealing box body A6-1 The two pairs of sides along the dyeing process flow direction of the sealed box body A6-2 are respectively sealed and connected to each other; the sealed box body A6-1 and the sealed box body A6-2 are respectively installed with a seal A 7-1 and a seal A 7 -2; the gap between the seal A7-1 in the sealed box A6-1 and the seal B7-2 in the sealed box B6-2 and the paired combination of the air seal cylinder A4-1-1 and the air seal cylinder The space between B4-1-2 constitutes the channel of the dyed object 1.

The connection relationship of each unit of the present invention: along the running direction of the dyed object 1, the air seal unit 13, the working fluid seal unit 12, the return device 4, the cleaning unit 9, the return device 4, the work fluid seal unit 12, Reflux device 4, counter jet dyeing unit 10, reflux device 4, working fluid air seal unit 12, reflux device 4, rinsing unit 11, reflux device 4, working fluid air seal unit 12, air air seal unit 13; reflux device 4 and Between the cleaning unit 9 or the counter jet dyeing unit 10 or the counter jet 2 of the rinsing unit 11, the semi-cylindrical reflux barrel A4-1 of the reflux device 4 is connected by the connecting plate A3-1 and the connecting plate B3-2 of the matching combination. -1 and the axial edge at the pairing combination of the return cylinder B4-1-2 and the shaft at the pairing combination of the semi-cylindrical counter-spray tube A2-1-1 and the counter-spray tube B 2-1-2 of the sprayer 2 Correspondingly connected to the edge; between the air sealer 5 and the reflux device 4 of the working fluid air seal unit 12, the semi-cylindrical shape of the air sealer 5 is sealed by the paired and combined sealing box body A6-1 and sealing box body A6-2 The axial edge of the pairing combination of the air sealing cylinder A5-1-1 and the air sealing cylinder B5-1-2 and the semi-cylindrical return cylinder A4-1-1 and the return cylinder B4-1-2 of the reflux device 4 The axial edges are correspondingly connected; between the gas sealer 5 of the working fluid air seal unit 12 and the air sealer 5 of the air seal unit 13, the air seal body A6-1 and the seal body A6-2 of the paired combination will seal the air The axial edges of the semi-cylindrical air sealing cylinder A5-1-1 and the air sealing cylinder B5-1-2 paired combination of the sealer 5 are connected correspondingly; the first air sealing unit 13 along the direction of the process flow The semi-cylindrical air seal cylinder A5-1-1 and air seal cylinder B5-1-1 of the last air seal device 5 of the air seal device 5 or the second air seal unit 13 that are not connected to other air seal devices 5 2 The axial edges of the paired combination are respectively installed with the sealed box body A6-1 and the sealed box body A6-2; the two pairs of sides of the paired combined sealed box body A6-1 and the sealed box body A6-2 along the direction of the dyeing process They are respectively sealed and connected to each other; the seals A7-1 and B7-2 are respectively installed in the paired sealed box body A6-1 and the sealed box body A6-2, and the seals in the paired combined sealed box body A6-1 The gap between A7-1 and the sealing member B7-2 in the sealing body B6-2 constitutes the passage of the dyed object 1 .

Each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 in the cleaning unit 9 or rinsing unit 11, and each fluid inlet pipe A5-2-2 in the working fluid air seal unit 12 1 and the fluid inlet pipe B5-2-2 are connected to the pipeline of the supercritical fluid generation subsystem 15, and the other side pipeline of the supercritical fluid generation subsystem 15 is connected to the pipeline of the working fluid storage subsystem 14; In the spray dyeing unit 10, each supercritical fluid inlet pipe A2-2-1 and supercritical fluid inlet pipe B2-2-2 are connected with the pipeline of the dye dissolving subsystem 16, and the other side pipeline of the dye dissolving subsystem 16 is connected with the pipeline of the dye dissolving subsystem 16. The pipeline connection of the supercritical fluid generation subsystem 15; the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13 are connected with the air compression equipment 19; the reflux devices on both sides of the cleaning unit 9 4, the working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected to the pipeline of the working fluid and the impurity separation subsystem 17, and are connected to the reflux devices 4 on both sides of the spray dyeing unit 10 and the cleaning unit 9. The working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 are connected with the pipeline of the working fluid and the dye separation subsystem 18, the other side pipeline of the working fluid and the impurity separation subsystem 17 and the working fluid The pipelines on the other side of the dye separation subsystem 18 are connected to the pipelines of the working fluid storage subsystem 14 .

Install the pressure regulating valve A8-1 at the supercritical fluid inlet pipe A2-2-1 and the supercritical fluid inlet pipe B2-2-2 of the sprayer 2; the working fluid outlet pipe A4-2-1 and A pressure regulating valve B8-2 is installed on the working fluid outlet pipe B4-2-2; a pressure regulating valve C8-3 is installed on the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the working fluid air seal unit 12; A pressure regulating valve D8-4 is respectively installed at the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the air seal unit 13 .

Embodiment 4: Using the supercritical fluid jet dyeing equipment of the present invention, the implementation process of the supercritical fluid jet dyeing process is shown in Figure 7, and Figure 4 or Figure 5 or Figure 6.

First, the working fluid in the working fluid storage subsystem 14 flows through the supercritical fluid generation subsystem 15 to generate a supercritical fluid that meets the spray dyeing process conditions;

Second, the dyed object 1 runs along the process flow direction, passing through the air sealing unit 13, the working fluid sealing unit 12, the reflux device 4, the cleaning unit 9, the reflux device 4, the working fluid sealing unit 12, and the reflux device 4 , the spray dyeing unit 10, the reflux device 4, the working fluid air seal unit 12, the reflux device 4, the rinsing unit 11, the reflux device 4, the working fluid air seal unit 12, and the air air seal unit 13;

The third, the pure supercritical fluid in the supercritical fluid generation subsystem 15 flows through the supercritical fluid inlet pipe A2-2-1 and the supercritical fluid inlet pipe B2-2-2 of the sprayer 2 in the cleaning unit 9 respectively, Enter the pair of spray tubes A 2-1-1 and counter spray tube B2-1-2, and after being evenly distributed by the distribution plate A2-3-1 and the distribution plate B2-3-2, it sprays to the dyed object 1 correspondingly. Extraction and cleaning are carried out to remove impurities; at this time, the pressure difference on both sides of the dyed object 1 is zero, and the supercritical fluid decompresses to become a non-supercritical working fluid; the working fluid carrying impurities passes through the connecting plate A3-1 and the connecting The channel of the dyed matter between the plates B3-2 enters the reflux device 4, and the depressurized working fluid enters the working fluid and impurity separation subsystem 17 through the working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2-2 , the separated working fluid is stored in the working fluid storage subsystem 14 for later recycling; the cleaning pressure is controlled by the pressure regulating valve A 8-1 and the pressure regulating valve B 8-2;

Fourth, the pure supercritical fluid in the supercritical fluid generating subsystem 15 flows through the dye dissolving subsystem 16, and the dye with saturated solubility passes through the supercritical fluid inlet pipe A2-2- of the counter jet 2 in the counter jet dyeing unit 10 1 and the supercritical fluid inlet pipe B2-2-2 enter the paired spray barrel A2-1-1 and the opposite spray barrel B2-1-2, and are aligned through the distribution plate A2-3-1 and the distribution plate B2-3-2 After being uniformly distributed, the corresponding spray is directed to the dyed object 1, and the dyed object 1 is sprayed and dyed. At this time, the pressure difference on both sides of the dyed object 1 is zero; the supercritical fluid carrying the remaining dye passes through the connecting plate A3-1 and the connecting plate The channel of the dyed matter between B3-2 enters the reflux device 4, and depressurizes to become a non-supercritical working fluid, and the depressurized working fluid passes through the working fluid outlet pipe A4-2-1 and the working fluid outlet pipe B4-2 -2 flow back to the working fluid and dye separation subsystem 18, after separation, the working fluid is stored in the working fluid storage subsystem 14 for later recycling; the separated dye can be reused; the dyeing pressure is controlled by the pressure regulating valve A8- 1 and pressure regulating valve B8-2 control;

Fifth, the pure supercritical fluid in the supercritical fluid generation subsystem 15 flows through the supercritical fluid inlet pipe 2-2-1 and the supercritical fluid inlet pipe B2-2-2 of the sprayer 2 in the rinsing unit 11 and enters the pair The spray tube A 2-1-1 and the counter spray tube B2-1-2 are evenly distributed through the distribution plate A2-3-1 and the distribution plate B2-3-2, and then sprayed to the dyed object 1 to carry out During rinsing, the pressure difference on both sides of the dyed object 1 is zero, and the supercritical fluid depressurizes to become a non-supercritical working fluid. The working fluid carrying the floating dye under rinsing enters the reflux device 4 through the dyed channel between the connecting plate A 3-1 and the connecting plate B3-2, and the depressurized working fluid passes through the working fluid outlet pipe A 4-2-1 and The working fluid outlet pipe B4-2-2 enters the working fluid and dye separation subsystem 18, and the separated working fluid is stored in the working fluid storage subsystem 14 for future recycling; the separated dye can be reused; the rinsing pressure Controlled by pressure regulating valve A 8-1 and pressure regulating valve B8-2;

Sixth, while the above third, fourth and fifth steps are being carried out, working fluids of different pressures enter from the fluid inlet pipe A5-2-1 and the fluid inlet pipe B5-2-2 of the working fluid air seal unit 12. The equipment is air-sealed step by step to prevent the working fluid from circulating between different reflux devices 4; the pressure of the air-sealed working fluid at each level is controlled by the pressure regulating valve C8-3;

Seventh, the working fluid air seal unit 12 installed at the extreme end of the process route depressurizes the leaked working fluid step by step to a certain pressure, and finally leaks to the air air seal unit 13, and the air passes through the fluid inlet pipe of the air air seal unit 13 A5-2-1 and the fluid inlet pipe B5-2-2 enter, and the leaked working fluid continues to be air-sealed step by step until the pressure drops to normal pressure; the air-seal pressure of each level is controlled by the pressure regulating valve D8-4 control.

The invention has the advantages of simple structure, convenient operation, good level dyeing property, no damage to dyed objects, continuous production and greatly improved dyeing quality and dyeing efficiency.

Claims (1)

1. Supercritical fluid spray dyeing equipment, which is characterized by a cleaning unit, a spray dyeing unit, a rinsing unit, a reflux device, a working fluid air seal unit, an air seal unit, a connecting plate, a sealed box body, a seal and a pressure The composition of the regulating valve; The cleaning unit or counter-jet dyeing unit or rinsing unit is composed of one or more counter jets with the same structure. When it is composed of two or more counter jets, the counter jets are connected to each other through a connecting plate. The number is determined by the specific dyeing process conditions; the counter sprayer is composed of a pair of semi-cylindrical counter spray tubes and a pair of distribution plates. Supercritical fluid inlet pipes are respectively arranged on the two corresponding paired spray barrels; the ends of the two semi-cylindrical paired spray barrels after pairing and combination are respectively installed with heads; the connecting plate is a paired combination structure, respectively The semi-cylindrical pairs of the nozzles are connected correspondingly to the axial edges at the paired combination of the nozzles, and the two pairs of sides of the paired connecting plates along the direction of the dyeing process are respectively sealed and connected to each other; the gap between the paired combined distribution plates and the matching The gap between the combined connecting plates constitutes the channel of the dyed material; The reflux device is composed of a pair of paired semi-cylindrical return cylinders, and working fluid outlet pipes are respectively arranged at the centers of the two corresponding semi-cylindrical return cylinders; The ends are respectively installed with heads; the space between the two paired return cylinders constitutes the channel of the dyed material; The working fluid air seal unit or air air seal unit is composed of one or more air seals with the same structure. When it is composed of two or more air seals, the air seals are connected to each other through the sealing box. The number is determined by the sealing characteristics of the seals in the specific sealing box; the air sealer is composed of a pair of paired semi-cylindrical air seal cylinders, and fluid inlet pipes are respectively arranged at the centers of the two paired combination air seal cylinders; after pairing and combination The two ends of the two semi-cylindrical air sealing cylinders are respectively equipped with sealing heads; the sealing body is a paired combination structure, which is respectively connected with the axial edges of the paired combination of the semi-cylindrical air sealing cylinders of the air sealer, and the paired Install paired and combined seals in the sealing box; the two pairs of sides of the paired and combined sealing box along the direction of the dyeing process are respectively sealed and connected to each other; the gap between the paired and combined seals and the space between the paired and combined air seal cylinders Constitute the channel of the dyed object; According to the supercritical fluid spray dyeing process, install the air air seal unit, working fluid air seal unit, reflux device, cleaning unit, reflux device, working fluid air seal unit, reflux device, spray dyeing unit, reflux device, working Fluid air seal unit, reflux device, rinsing unit, reflux device, working fluid air seal unit, air air seal unit; the connection between the reflux device and the cleaning unit or the spray dyeing unit or the spray nozzle of the rinsing unit through pairing and combination The plate connects the axial edge of the paired combination of the semi-cylindrical return barrel of the reflux device to the axial edge of the paired combination of the semi-cylindrical counter-spray barrel of the counter-injector; Between the devices, the axial edge of the paired combination of the semi-cylindrical air seal cylinder of the gas sealer is connected to the axial edge of the paired combination of the semi-cylindrical return cylinder of the reflux device through the paired and combined sealing body; the working fluid Between the air sealer of the air seal unit and the air sealer of the air seal unit, the axial edges of the semi-cylindrical air seal cylinders of the air sealer are connected correspondingly through the paired combination of sealing boxes; along the process flow In the direction of the first air sealer of the first air seal unit or the pairing combination of the half-cylindrical air seal cylinder on the side that is not connected with other air sealers in the last air sealer of the second air seal unit The axial edge of the paired and combined sealing box body is installed; the two pairs of sides of the paired and combined sealing box body along the direction of the dyeing process are respectively sealed and connected to each other; The gap between the seals in the body constitutes the passage of the contaminated material; Each supercritical fluid inlet pipe in the cleaning unit or rinsing unit, and each working fluid inlet pipe in the working fluid air seal unit are connected with the pipeline of the supercritical fluid generation subsystem, and another part of the supercritical fluid generation subsystem The side pipeline is connected to the pipeline of the working fluid storage subsystem; each supercritical fluid inlet pipe in the counter-jet dyeing unit is connected to the pipeline of the dye dissolving subsystem, and the other side pipeline of the dye dissolving subsystem is connected to the supercritical fluid The pipelines of the generation subsystem are connected; the fluid inlet pipe of the air seal unit is connected with the air compression equipment; the working fluid outlet pipe of the reflux at both ends of the cleaning unit is connected with the pipeline of the impurity separation subsystem. The working fluid outlet pipe of the reflux at both ends of the spray dyeing unit or the rinsing unit is connected with the pipeline of the dye separation subsystem, and the other side pipeline of the working fluid and impurity separation subsystem and the working fluid and dye separation subsystem The pipelines on the other side are connected with the pipelines of the working fluid storage subsystem; Pressure regulating valves are respectively installed at the supercritical fluid inlet pipe of the injector, the working fluid outlet pipe of the reflux device, the fluid inlet pipe of the working fluid air seal unit, and the fluid inlet pipe of the air air seal unit.