Supercritical carbon dioxide waterless dyeing circulating system, system and equipment
By using a vane pump in the waterless dyeing system to simplify the piping structure, the system is simplified and the equipment is made more convenient. This solves the problems of space occupation and color difference caused by complex piping, and improves the ease of use of the equipment on the production site.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGCHUANG LVJIE SUPERCRITICAL FLUID TECH (JIANGSU) CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
Existing waterless dyeing systems have complex circulation pipelines that occupy a lot of space, limiting their application in production sites.
Using a vane pump as the circulating pump, with vanes arranged radially along the rotor and the centerline passing through the rotor's central axis, simplifies the piping structure. By controlling the forward and reverse rotation of the vane pump, the forward and reverse rotation functions of the circulating system are achieved, reducing the number of pipes and the space occupied.
The system simplifies the piping system, reduces space requirements, avoids circulation dead zones, solves the color difference problem caused by sudden temperature changes, and improves the ease of use of the system and the convenience of the equipment.
Smart Images
Figure CN224133373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dyeing technology, and in particular to a supercritical carbon dioxide anhydrous dyeing circulation system, system and equipment. Background Technology
[0002] Anhydrous dyeing systems are environmentally friendly technologies that break through the limitations of traditional water-based dyeing processes. They aim to achieve textile dyeing using non-aqueous media, solving the problems of high water consumption and high pollution. Core technologies include supercritical carbon dioxide dyeing, organic solvent dyeing, heat transfer printing, and reactive dye non-aqueous dyeing, with supercritical carbon dioxide dyeing being the most representative implementation. This technology utilizes the properties of carbon dioxide in its supercritical state—both gaseous diffusion and liquid solubility—to efficiently dissolve and penetrate dyes into the fibers, achieving uniform dyeing. After dyeing, the carbon dioxide is vaporized and recovered by depressurization, and unadsorbed dyes can be recycled. The entire process results in zero wastewater discharge, reduces dyeing time to 3-4 hours compared to traditional processes, and also reduces energy consumption and improves color fastness.
[0003] In anhydrous dyeing systems, the circulation system can achieve both forward and reverse circulation, thereby improving the dyeing effect. Existing circulation systems require valves such as three-way valves and corresponding pipelines to switch between forward and reverse circulation. The circulation system pipelines are complex and occupy a large amount of space, resulting in the entire anhydrous dyeing system and dyeing equipment occupying a large space, which is inconvenient for the layout of the dyeing system and dyeing equipment, and limits the application of dyeing equipment on the production site. Utility Model Content
[0004] In a first aspect, this utility model provides a supercritical carbon dioxide anhydrous dyeing circulation system, including a dyeing vessel, a circulation pump, and pipelines. The circulation pump is a vane pump, with the vanes of the vane pump arranged radially along the rotor, and the centerline of the vanes passing through the central axis of the rotor. The pipelines include a first pipeline and a second pipeline. The dyeing vessel is provided with a first fluid interface and a second fluid interface. The circulation pump includes a third fluid interface and a fourth fluid interface. The first pipeline connects the first fluid interface of the dyeing vessel and the third fluid interface of the circulation pump, and the second pipeline connects the second fluid interface of the dyeing vessel and the fourth fluid interface of the circulation pump.
[0005] In an optional implementation, at least two circulation pumps are provided, and the at least two circulation pumps are arranged in parallel.
[0006] In an optional embodiment, the first pipe has a first port and at least two second ports, the first port of the first pipe is connected to a first fluid interface of the dyeing vessel, and the at least two second ports of the first pipe are respectively connected to a third fluid interface of a circulating pump; the second pipe has a first port and at least two second ports, the first port of the first pipe is connected to a second fluid interface of the dyeing vessel, and the at least two second ports of the second pipe are respectively connected to a fourth fluid interface of a circulating pump.
[0007] In an alternative implementation, the circulation pump is a magnetically driven vane pump.
[0008] In an optional implementation, the dyeing vessel is arranged vertically.
[0009] In an optional implementation, the dyeing vessel is positioned higher than the circulation pump.
[0010] In an optional implementation, the dyeing vessel is arranged horizontally.
[0011] In an optional implementation, a heat exchanger is provided on the first pipe and / or the second pipe.
[0012] Secondly, this utility model provides a supercritical carbon dioxide anhydrous dyeing system, including a supercritical carbon dioxide anhydrous dyeing circulation system according to any of the foregoing embodiments.
[0013] Thirdly, this utility model provides a supercritical carbon dioxide anhydrous dyeing device, including a housing, a control input device and a display output device, and also includes at least one supercritical carbon dioxide anhydrous dyeing system according to the foregoing embodiments, wherein the supercritical carbon dioxide anhydrous dyeing system is fixedly installed in the housing.
[0014] The supercritical carbon dioxide anhydrous dyeing circulation system provided by this invention has the following beneficial effects:
[0015] This invention uses a vane pump as a circulating pump. The vane pump's blades are arranged radially along the rotor, and the center line of the blades passes through the rotor's central axis. Therefore, the vane pump itself can achieve forward and reverse rotation. Thus, the forward and reverse rotation function of the entire circulating system can be achieved simply by controlling the forward and reverse rotation of the vane pump. The circulating system does not require complex piping; only the first and second pipes are needed. This forms a circulating system in which the dyeing kettle, the first pipe, the circulating pump, and the second pipe are connected in sequence. The structure of the piping system is greatly simplified, the space occupied by the piping system is significantly reduced, and the problem of circulation dead zones in complex piping is avoided. This completely solves the problem of color difference in dyeing caused by temperature changes due to circulation dead zones.
[0016] The supercritical carbon dioxide anhydrous dyeing system provided by this utility model has the following beneficial effects: due to the adoption of a supercritical carbon dioxide anhydrous dyeing system circulation system with simpler pipelines and smaller volume, the supercritical carbon dioxide anhydrous dyeing system occupies less space overall, making it easier to arrange other pipelines in the system and improving the usability of the entire system.
[0017] The supercritical carbon dioxide anhydrous dyeing equipment provided by this utility model has the following beneficial effects: due to the adoption of a supercritical carbon dioxide anhydrous dyeing system with simpler pipelines and smaller size, the internal structure of the supercritical carbon dioxide anhydrous dyeing equipment can be simpler, making it easier to install the supercritical carbon dioxide anhydrous dyeing system in the equipment, and also facilitating the installation of other systems in the equipment, reducing the installation and maintenance costs of the equipment, reducing the space occupation of the equipment, and improving the convenience and ease of use of the equipment in the production site. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a vertical dyeing vessel in a supercritical carbon dioxide anhydrous dyeing circulation system in the prior art;
[0020] Figure 2 A schematic diagram of the structure of a horizontal dyeing vessel in a supercritical carbon dioxide anhydrous dyeing circulation system in the prior art;
[0021] Figure 3 This is a schematic diagram of the supercritical carbon dioxide anhydrous dyeing circulation system provided in Embodiment 1 of this utility model;
[0022] Figure 4 This is a schematic diagram of the supercritical carbon dioxide anhydrous dyeing circulation system provided in Embodiment 2 of this utility model.
[0023] Icons: 100 - Dyeing kettle; 200 - Circulation pump; 300 - First pipe; 400 - Second pipe; 500 - Three-way valve; 600 - Three-way connector. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0031] Example 1: A Supercritical Carbon Dioxide Anhydrous Dyeing Circulation System
[0032] This embodiment provides a supercritical carbon dioxide anhydrous staining circulation system, such as Figure 3 As shown, the system includes a dyeing tank 100, a circulating pump 200, and pipelines. The circulating pump 200 is a vane pump, with its vanes arranged radially along the rotor and the centerline of the vanes passing through the central axis of the rotor. The pipelines include a first pipeline 300 and a second pipeline 400. The dyeing tank 100 is provided with a first fluid interface and a second fluid interface. The circulating pump 200 includes a third fluid interface and a fourth fluid interface. The first pipeline 300 connects the first fluid interface of the dyeing tank 100 and the third fluid interface of the circulating pump 200. The second pipeline 400 connects the second fluid interface of the dyeing tank 100 and the fourth fluid interface of the circulating pump 200.
[0033] The supercritical carbon dioxide anhydrous dyeing circulation system provided in this embodiment uses a vane pump as the circulation pump 200. The vane pump blades are arranged radially along the rotor, and the center line of the vane passes through the central axis of the rotor. Therefore, the vane pump itself can achieve forward and reverse rotation. Thus, the forward and reverse rotation function of the entire circulation system can be achieved simply by controlling the forward and reverse rotation of the vane pump. The circulation system does not require complex piping. Only the first pipe 300 and the second pipe 400 are needed to form a circulation system in which the dyeing kettle 100, the first pipe 300, the circulation pump 200, and the second pipe 400 are connected in sequence. The structure of the piping system is greatly simplified, the space occupied by the piping system is greatly reduced, and the problem of circulation dead zone in complex piping is avoided. The problem of color difference caused by temperature change due to circulation dead zone is completely solved.
[0034] Specifically, in the supercritical carbon dioxide anhydrous dyeing circulation system provided in this embodiment, the dyeing vessel 100 is vertically arranged, such as... Figure 3 As shown. The vertical arrangement of the dyeing vessel 100 specifically refers to the dyeing vessel 100 being arranged vertically along its length or extension direction, such as... Figure 3 As shown, the orientation of the circulation pump 200 is independent of the orientation of the dyeing vessel 100. In this embodiment, the circulation pump 200 is positioned horizontally.
[0035] In existing technologies, a typical structure of a supercritical carbon dioxide anhydrous dyeing circulation system using a vertical dyeing vessel 100 is as follows: Figure 1As shown, since the circulating pump 200 does not have forward and reverse rotation functions, at least two three-way valves 500 and at least two three-way connectors 600 need to be installed, along with corresponding forward and reverse rotation circuits, in order to achieve forward and reverse rotation of the circulating system through the switching function of the forward and reverse rotation circuits. This results in a large footprint, numerous components, complex installation, and high cost for the entire piping system.
[0036] Meanwhile, when the forward or reverse circuit is not activated, a circulation dead zone is formed. At this time, there is still carbon dioxide medium in the circuit, but the temperature cannot be maintained because no circuit is involved. Afterwards, when the circuit is reactivated, the lower temperature carbon dioxide medium in the circuit re-enters the circulation system, which will cause a sudden temperature change in the carbon dioxide medium of the entire circulation system and ultimately lead to the problem of color difference in dyeing.
[0037] At the same time, due to the simplified pipeline structure, the three-way valve 500, the three-way connector 600, and the corresponding connecting pipes, fasteners and seals are saved, thereby greatly reducing the leakage points and corresponding failure points of the pipeline system.
[0038] contrast Figure 3 The illustrated embodiment provides a supercritical carbon dioxide anhydrous staining circulation system and Figure 1 The supercritical carbon dioxide anhydrous dyeing circulation system using a vertical dyeing kettle 100 in the prior art shown can be seen more intuitively. After simplifying the pipeline structure to realize the forward and reverse functions, the volume of the supercritical carbon dioxide anhydrous dyeing circulation system is greatly reduced, which makes it easier to arrange the corresponding supercritical carbon dioxide anhydrous dyeing system and supercritical carbon dioxide anhydrous dyeing equipment.
[0039] In this embodiment, specifically, such as Figure 3 As shown, the dyeing vessel 100 is positioned higher than the circulating pump 200; more specifically, the bottom of the dyeing vessel 100 is also higher than the circulating pump 200. However, this arrangement is only for the convenience of implementing a specific pipeline layout in this embodiment. In other embodiments, based on specific pipeline connection designs, optionally, the bottom of the dyeing vessel 100 may be flush with the bottom of the circulating pump 200, or the circulating pump 200 may be positioned higher than the dyeing vessel 100.
[0040] In this embodiment, specifically, such as Figure 3 As shown, the supercritical carbon dioxide anhydrous staining circulation system only has one circulation pump 200, and one circulation pump 200 can meet the flow requirements of the supercritical carbon dioxide anhydrous staining circulation system.
[0041] In other embodiments, optionally, multiple circulation pumps 200 may be configured, such as two, three, or four, and these circulation pumps 200 may be configured in parallel to increase the flow rate of the circulation pumps 200, thereby meeting the greater flow rate requirements of the supercritical carbon dioxide anhydrous dyeing circulation system.
[0042] When configuring the circulating pumps 200 in parallel, the following example illustrates the configuration: The first pipe 300 has a first port and at least two second ports. The first port of the first pipe 300 is connected to the first fluid interface of the dyeing vessel 100, and the at least two second ports of the first pipe 300 are respectively connected to the third fluid interface of one circulating pump 200. The second pipe 400 has a first port and at least two second ports. The first port of the first pipe 300 is connected to the second fluid interface of the dyeing vessel 100, and the at least two second ports of the second pipe 400 are respectively connected to the fourth fluid interface of one circulating pump 200.
[0043] The parallel configuration of the circulating pumps 200 is not limited to the specific form described above, and can also be achieved through a distributor or an independent circulation branch. This application does not limit this.
[0044] In this embodiment, specifically, the circulation pump 200 is a magnetically driven vane pump. Magnetically driven vane pumps offer better sealing, preventing leakage of the supercritical carbon dioxide medium and improving the safety of the supercritical carbon dioxide anhydrous dyeing circulation system. In other embodiments, optionally, the circulation pump 200 may also employ other types of driven vane pumps.
[0045] In other embodiments, optionally, a heat exchanger is provided on the first pipe 300 and / or the second pipe 400. During operation of the supercritical carbon dioxide anhydrous dyeing circulation system, the heat exchanger can heat the first pipe 300 and / or the second pipe 400, preventing the supercritical carbon dioxide from losing temperature and improving the medium stability of the supercritical carbon dioxide. When the supercritical carbon dioxide anhydrous dyeing circulation system is not operating, the heat exchanger can cool the first pipe 300 and / or the second pipe 400, facilitating rapid cooling of the supercritical carbon dioxide and facilitating the recovery of the supercritical carbon dioxide medium.
[0046] Example 2: A Supercritical Carbon Dioxide Anhydrous Dyeing Circulation System
[0047] The supercritical carbon dioxide anhydrous dyeing circulation system provided in Example 2 is largely the same as that in Example 2. The following mainly describes the differences.
[0048] Example 2 provides a supercritical carbon dioxide anhydrous dyeing circulation system, such as Figure 4As shown, the dyeing vessel 100 is horizontally positioned, while the circulation pump 200 is vertically positioned. In existing technology, a typical structure of a supercritical carbon dioxide anhydrous dyeing circulation system using a horizontal dyeing vessel 100 is as follows: Figure 2 As shown. Figure 2 and Figure 4 The specific structure of the supercritical carbon dioxide anhydrous dyeing circulation system has been simplified, especially the pipes and valves, which are shown schematically rather than structurally. However, based on the relevant example 1... Figure 1 and Figure 3 , Figure 2 and Figure 4 This is enough to illustrate the difference.
[0049] contrast Figure 2 The prior art shown employs a supercritical carbon dioxide anhydrous staining circulation system in a horizontal staining vessel 100 and Figure 4 The supercritical carbon dioxide anhydrous staining circulation system provided in Example 2 shows that the pipeline system has been greatly simplified, and its beneficial effects are the same as those in Example 1, so they will not be repeated here.
[0050] Example 3: A Supercritical Carbon Dioxide Anhydrous Staining System
[0051] This embodiment provides a supercritical carbon dioxide anhydrous staining system, including the supercritical carbon dioxide anhydrous staining circulation system in any of the above embodiments.
[0052] Because it uses a supercritical carbon dioxide anhydrous dyeing system circulation system with simpler piping and smaller size, the supercritical carbon dioxide anhydrous dyeing system occupies less space overall, making it easier to arrange other pipes in the system and improving the overall ease of use of the system.
[0053] In addition to the supercritical carbon dioxide anhydrous staining circulation system, a typical supercritical carbon dioxide anhydrous staining media recovery system may also include a supercritical carbon dioxide anhydrous staining media recovery system.
[0054] Example 4: A supercritical carbon dioxide anhydrous dyeing device
[0055] This embodiment provides a supercritical carbon dioxide anhydrous dyeing device, including a housing, a control input device and a display output device, and also includes at least one supercritical carbon dioxide anhydrous dyeing system according to the foregoing embodiments, wherein the supercritical carbon dioxide anhydrous dyeing system is fixedly installed in the housing.
[0056] Thanks to the adoption of a supercritical carbon dioxide anhydrous dyeing system with simpler piping and smaller size, the internal structure of the supercritical carbon dioxide anhydrous dyeing equipment can be simplified, making it easier to install the supercritical carbon dioxide anhydrous dyeing system within the equipment. It also facilitates the installation of other systems within the equipment, reducing installation and maintenance costs, minimizing space occupation, and improving the convenience and ease of use of the equipment in the production site.
[0057] In particular, multiple supercritical carbon dioxide anhydrous dyeing systems can be set up within a single supercritical carbon dioxide anhydrous dyeing device. These multiple systems can share peripheral equipment such as control input devices and display output devices. In this case, the beneficial effects of the simplified structure of the supercritical carbon dioxide anhydrous dyeing system are further amplified, bringing more practical application value.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A supercritical carbon dioxide anhydrous dyeing circulation system comprising a dyeing kettle (100), a circulation pump (200) and a pipe, characterized in that, The circulating pump (200) is a vane pump, the vanes of which are arranged radially along the rotor and the centerline of the vanes passes through the central axis of the rotor. The pipeline includes a first pipeline (300) and a second pipeline (400). The dyeing vessel (100) is provided with a first fluid interface and a second fluid interface. The circulating pump (200) includes a third fluid interface and a fourth fluid interface. The first pipeline (300) connects the first fluid interface of the dyeing vessel (100) and the third fluid interface of the circulating pump (200). The second pipeline (400) connects the second fluid interface of the dyeing vessel (100) and the fourth fluid interface of the circulating pump (200).
2. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 1, characterized by, The circulation pump (200) is provided in at least two, and the at least two circulation pumps (200) are arranged in parallel.
3. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 2, characterized by, The first pipe (300) has a first port and at least two second ports. The first port of the first pipe (300) is connected to the first fluid interface of the dyeing vessel (100), and the at least two second ports of the first pipe (300) are respectively connected to the third fluid interface of a circulating pump (200). The second pipe (400) has a first port and at least two second ports. The first port of the first pipe (300) is connected to the second fluid interface of the dyeing vessel (100), and the at least two second ports of the second pipe (400) are respectively connected to the fourth fluid interface of a circulating pump (200).
4. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 1, characterized by, The circulating pump (200) is a magnetically driven vane pump.
5. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 1, characterized by, The dyeing kettle (100) is set vertically.
6. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 5, characterized by, The dyeing vessel (100) is positioned higher than the circulating pump (200).
7. The supercritical carbon dioxide anhydrous dyeing circulation system according to claim 1, characterized by, The dyeing kettle (100) is set horizontally.
8. The supercritical carbon dioxide anhydrous staining circulation system according to claim 1, characterized in that, A heat exchanger is provided on the first pipe (300) and / or the second pipe (400).
9. A supercritical carbon dioxide anhydrous dyeing system characterized by, Includes the supercritical carbon dioxide anhydrous staining circulation system according to any one of claims 1-8.
10. A supercritical carbon dioxide anhydrous dyeing apparatus characterized by comprising: It includes a housing, a control input device, and a display output device, and also includes at least one supercritical carbon dioxide anhydrous dyeing system according to claim 9, wherein the supercritical carbon dioxide anhydrous dyeing system is fixedly installed in the housing.