CN203559258U - Main pump structure used for yarn dyeing machine and having extremely low bath ratio - Google Patents
Main pump structure used for yarn dyeing machine and having extremely low bath ratio Download PDFInfo
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- CN203559258U CN203559258U CN201320443421.2U CN201320443421U CN203559258U CN 203559258 U CN203559258 U CN 203559258U CN 201320443421 U CN201320443421 U CN 201320443421U CN 203559258 U CN203559258 U CN 203559258U
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Abstract
The utility model discloses a main pump structure used for a yarn dyeing machine and having an extremely low bath ratio. The main pump structure includes a liquid return pipeline, a return liquid storage cavity, an outlet liquid inlet, an outlet liquid pipeline and a separation board. The liquid return pipeline and the outlet liquid inlet are docked with a liquid inlet and a liquid outlet of a three-level impeller of the yarn dyeing machine. Dyeing liquid enters into a creel dyeing liquid passageway through the outlet liquid inlet and the outlet liquid pipeline successively. The dyeing liquid enters into the return liquid storage cavity through a dyeing liquid collecting plate after dip-dyeing to-be-dyed yarn and then enters into the three-level impeller through the liquid return pipeline, so that recycling is realized. The separation board is formed by welding an arc plate and an inner rib plate together and is used for separating the liquid outlet pipeline and the liquid return pipeline for the dyeing liquid. The arc plate is sleeved on the outer wall of the outlet liquid pipeline while the inner rib plate is sleeved on the outer wall of the liquid return pipeline. The dyeing liquid flows into the outlet liquid pipeline through a gap in the middle of the separation board. The main pump structure provided by the utility model is simple in structure and easy to manufacture. The extremely low bath ratio that is 1: 2.5 can be realized, so that the main pump structure is reduced in waste liquid discharge rate and becomes more environment-friendly. And economic performance can be enhanced.
Description
Technical field
The utility model relates to dyeing machinery technical field, is specifically related to a kind of yarn dyeing machine Structure of RCP of realizing extremely low bath raio.
Background technology
Textile industry is the important industry of Chinese national economy, for a long time, textile industry is that major contribution has been made in the aspects such as development, the solution people of national economy wear the clothes, foreign exchange earning, and in this industry, has consequence undoubtedly as the dyeing and finishing industry that connects bridge.Dyeing and finishing industry is textiles deep processing, fine finishining and the key of putting forward added value, is that textile fabric, raw yarn, embryo cloth are processed into the tie between the final products that enter consumer goods market, plays the important function that promotes the common development of product.
China's dyeing and finishing industry ability ranks first in the world, and within 2009, the above enterprise of scale dyeing cloth output is 539.8 hundred million meters, accounts for world's proportion and surpasses 40%.Dyeing and printing products in market, the adaptability of the aspect such as kind, raw material, batch is enhanced, the degree of self-sufficiency of China's garment material has surpassed 70%, the garment material degree of self-sufficiency of domestic market sales reaches more than 90%.Dyeing cloth 1-11 month output in 2010 in the whole nation adds up to 540.65 hundred million meters, increases by 12.87% than same period last year.Dyeing and finishing industry in occupation of very important status, is directly connected to the comprehensive quality of fabric in textile and dyeing industry.And dyeing machine equipment is one of main support of dyeing and finishing industry, the level of Dyeing & Finishing Equipment has determined the level of whole dyeing and finishing industry to some degree.
According to statistics in 2000, textile industry total water amount was 9,200,000,000 tons, and wherein fresh water amount 6,600,000,000 tonnages occupy national every profession and trade second.6,400,000,000 tons of printing and dyeing industry total water amounts, account for 70% of textile industry, and 5,800,000,000 tons of the fresh water amounts of taking, account for textile industry 88%, the recovery utilization rate of water only 10%.Visible, dyeing and finishing industry belongs to the mechanized equipment manufacturing of highly energy-consuming, high water consumption, high pollution.Under the situation constantly worsening in current energy shortage, water resource worsening shortages, environmental pollution, developing the integrated short liquor ratio equipment for dyeing and finishing of environmental protection and energy saving is the task of top priority.Equipment for dyeing and finishing should actively be promoted new technology, new technology, new equipment, attention realizes short liquor dyeing, reinforcement, to the recycling of the recyclable resources such as water, vapour and the management to energy consumption, promotes energy-saving effect and the replace old equipment for dyeing and finishing of whole equipment for dyeing and finishing industry, promotes the market competitiveness.
In tradition cheese dyeing machine dyeing course, dye liquor soaks yarn cylinder half, and owing to having adopted special main circulation pump structure, the dye liquor of ultra-low bath ratio yarn dyeing machine does not soak spindle, and the low liquid level that can realize dye liquor by pump lift circulates.So just reduced because the long-time adverse effect of bringing of soaking of yarn, as density becomes large, it is large etc. that the resistance while penetrating layer when dye liquor is circulating becomes.The direct result that ultra-low bath ratio yarn dyeing machine dye bath ratio reduces is exactly the consumption minimizing of water and steam in dyeing course, and another difference of ultra-low bath ratio dyeing machine and traditional dyeing machine is that staining solution flow adopts arteries and veins current control.Can realize so high recycle ratio number, yarn dyeing line penetration speed is fast, thereby can greatly reduce the process time, and more easily takes precautions against the dyeing specks such as ectonexine yarn aberration in yarn dyeing process, color spot, realizes even dyeing effect.
The utility model patent applicant has applied for utility model patent " three grades of vane pump yarn dyeing machines of ultra-low bath ratio " (number of patent application: 201110095749.5) on April 15th, 2011, application discloses three grades of vane pump yarn dyeing machines of a kind of ultra-low bath ratio, comprises the parts such as dye vat, creel, vane pump.Adopt the pulsating fluid staining technique of three grades of vane pumps, dye liquor is thus lifted to 30 meters of high pressure lifts through three grades of vane pumps, by triplex, is ejected into spindle, and dye liquor is ejected into spindle with high rapid pulse stream one direction, flow out layer and loop back in yarn cylinder body, and complete dyestuff to dying process on spindle.Vane pump makes dye liquor produce pulsating fluid dynamic effect in spindle dye cycle, has improved the dyeing exchange frequency between dye liquor and spindle, makes short liquor ratio dye liquor contact and obtain power cycle with spindle, reaches the minimum bath raio of l:3 that dye liquor does not soak spindle dyeing.
Although above-mentioned patent has realized the ultra-low bath ratio of 1:3, but still the space being improved, thereby the structure that needs further research to optimize yarn dyeing machine further reduces bath raio, reduces discharging of waste liquid, improves the economic benefit of yarn dyeing.
Utility model content
In order further to reduce the bath raio of yarn dyeing, a kind of Structure of RCP and method for designing thereof that realizes lower bath raio yarn dyeing machine proposed, this design can further be reduced to yarn dyeing bath raio the limit of the ultra-low bath ratio of 1:2.5, and can on existing yarn dyeing machine, transform, easily manufactured with low cost, can further reduce the discharge of yarn dyeing waste liquid, increase economic efficiency.
The utility model provides a kind of ultra-low bath ratio yarn dyeing machine Structure of RCP, and its technical scheme is:
Realize an extremely low bath raio yarn dyeing machine Structure of RCP, comprise back liquid pipeline, phegma liquid-storing cavity, fluid entrance, fluid pipeline and division board; The back liquid pipeline of described Structure of RCP and fluid entrance connect and (are not fastenedly connected with the liquid inlet of three grades of impellers of yarn dyeing machine and outlet respectively, because three grades of impellers need rotation), fluid pipeline is communicated with fluid entrance, and fluid pipeline is communicated with the creel dye liquor runner of yarn dyeing machine; Phegma liquid-storing cavity one end is communicated with the dye liquor catch tray of dyeing machine, and the other end is communicated with back liquid pipeline, and back liquid pipeline is communicated with three grades of vane pumps again; Back liquid pipeline and fluid pipeline intersect and separate by division board; Division board is connected and composed by arc plate and inner reinforced plate; Arc plate is by being socketed on the outer wall of fluid pipeline, and inner reinforced plate is socketed on the outer wall of back liquid pipeline; Leaving certain gaps uncovered by the economic plan in the middle of division board, described back liquid pipeline passes this breach, and because breach cross section is larger than back liquid pipeline, makes the passage of the middle breach of division board and back liquid pipeline lateral surface formation as a part for fluid pipeline.
Further, described extremely low bath raio yarn dyeing machine Structure of RCP, also comprises liquid collecting sleeve pipe, and phegma liquid-storing cavity one end is communicated with the dye liquor catch tray of dyeing machine by liquid collecting sleeve pipe.
Further, phegma liquid-storing cavity is for collecting the dye liquor flowing back to from creel, its structure being surrounded by pump housing outer tube, back liquid pipeline, liquid-storing cavity adjustable plate and division board forms, the volume of liquid-storing cavity is greater than the trouble free service surplus of impeller, conventionally be set as 1.5 times of trouble free service surplus, also can be other reasonable multiples, and utilize the volume of liquid-storing cavity adjustable plate adjustment liquid-storing cavity to meet the demands; Its effect of phegma liquid-storing cavity is to guarantee that dye liquor can be stablized, continuous flowing back in three grades of vane pumps, makes the work that three grades of vane pumps can be stable, produces stable dye liquor pressure head.
Further, described arc plate is a semiellipse ring flat-plate, and the mounting inclination angle degree of this arc plate is A, and fluid outer diameter tube is R1, and liquid collecting casing inner diameter is R2, and the semi-minor axis of the interior elliptical aperture of above-mentioned arc plate is R1, and major semiaxis is R1/cosA; The semi-minor axis of outer ellipse is R2, and major semiaxis is R2/cosA; Described arc plate is fixedly mounted in the middle of fluid pipeline and liquid collecting sleeve pipe by the form of welding according to above-mentioned angle of inclination A; Described inner reinforced plate is a surface plate, is arranged in the plane at axis place of fluid pipeline, and is welded and fixed with the straight line of arc plate; The endoporus lower end of inner reinforced plate is that dual-side and the semi arch in semi arch and hole is tangent, and the radius of its semi arch is consistent with the external diameter R3 of back liquid pipeline; The outline lower end of inner reinforced plate is circular arc, and its radius is consistent with the internal diameter R4 of pump housing outer tube, and the size of its straight line is consistent with the semi-minor axis of arc board size; According to such scheme, the shape of division board can meet liquid outlet channel and back flow channel are separated completely; The Main Function of division board is that the back flow channel of compact Structure of RCP and liquid outlet channel are fused into one, and makes Structure of RCP liquid compact, storage few, thereby can realize the yarn dyeing machine of extremely low bath raio.
Further, the volume that liquid collecting sleeve pipe, pump housing outer tube, liquid-storing cavity adjustable plate surround is V1, and is equally divided into two parts by division board, and a part is back flow channel, and another part is liquid outlet channel; Suppose that three grades of volumes in impeller channel are V2, the maximum yarn weight that yarn dyeing machine can hold is M, and yarn water absorption rate is n, and the bath raio of yarn dyeing machine is D=M:(V1+V2+M*n).
Operation principle: division board separates the liquid outlet channel of dye liquor and back flow channel; Dye liquor through the effect of three grades of impellers and have certain pressure head, enters fluid pipeline by fluid entrance to enter creel dye liquor runner then; Dye liquor has been contaminated after the yarn dying and has been entered phegma liquid-storing cavity through dye liquor catch tray, phegma and then enter three grades of vane pumps by back liquid pipeline and carry out recirculation.The middle leaving certain gaps uncovered by the economic plan of described division board, described back liquid pipeline is installed fixing through this breach, and because breach cross section is larger than back liquid pipeline, makes the passage of the middle breach of division board and liquid back pipe lateral surface formation as the passage of fluid process.
With respect to prior art, the utlity model has following advantage: the utility model is simple in structure, easily manufacture, the ingenious division board that utilized separates liquid outlet channel and back flow channel and two passages are combined together, and compact conformation, declines to a great extent the dye liquor volume accumulating in runner, thereby effectively reduce yarn dyeing machine bath raio, reduce the discharge of waste liquid, environmental protection more, and can increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view that ultra-low bath ratio yarn dyeing machine Structure of RCP of the present utility model is crossed main pump central shaft.
Fig. 2 is the three-dimensional structure schematic diagram (partly cuing open 3-D view) of ultra-low bath ratio yarn dyeing machine Structure of RCP of the present utility model.
Fig. 3 is the three-dimensional structure schematic diagram (global view) of ultra-low bath ratio yarn dyeing machine Structure of RCP of the present utility model.
Fig. 4 a is the division board scheme of installation of ultra-low bath ratio yarn dyeing machine Structure of RCP of the present utility model.
Fig. 4 b is the perspective view of division board.
Fig. 5 a be ultra-low bath ratio yarn dyeing machine Structure of RCP of the present utility model division board for top view;
Fig. 5 b is the axis side view that waits of division board.
Fig. 5 c is the front view of division board.
Fig. 5 d is the left side view of the division board in Fig. 5 c.
In figure, 1-vane pump blind flange; 2-back liquid pipeline; 3-fluid entrance; 4-phegma liquid-storing cavity; 5-division board; 6-fluid pipeline; 7-liquid collecting sleeve pipe; 8-pump housing outer tube; 9-liquid-storing cavity adjustable plate; 51-arc plate; 52-inner reinforced plate; 53-breach.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but be not limited to this.
As shown in Figure 1, a kind of extremely low bath raio yarn dyeing machine Structure of RCP, mainly comprises the compositions such as back liquid pipeline 2, phegma liquid-storing cavity 4, fluid entrance 3, fluid pipeline 6, division board 5, liquid collecting sleeve pipe 7, pump housing outer tube 8 and liquid-storing cavity adjustable plate 9; The back liquid pipeline 2 of described Structure of RCP and fluid entrance 3 connect and (are not fastenedly connected with the liquid inlet of three grades of impellers of yarn dyeing machine and outlet respectively, three grades of impellers need rotation), dye liquor through the effect of three grades of impellers and have certain pressure head, enters fluid pipeline 6 by fluid entrance 3 to enter creel dye liquor runner then; Dye liquor has been contaminated after the yarn dying and has been entered phegma liquid-storing cavity 4 through dye liquor catch tray, phegma and then enter three grades of impellers by back liquid pipeline 2 and carry out recirculation; Division board 5 separates the liquid outlet channel of dye liquor and back flow channel; Division board is welded by arc plate 51 and inner reinforced plate 52; Arc plate is enclosed within on the outer wall of fluid pipeline 6 by welding, and inner reinforced plate is enclosed within on the outer wall of back liquid pipeline 2 by welding; The middle leaving certain gaps uncovered by the economic plan 53 of division board, described back liquid pipeline 2 is installed fixing through this breach, and because breach cross section is larger than back liquid pipeline, makes the passage of the middle breach of division board and liquid back pipe lateral surface formation as liquid outlet.
As an example, described arc plate 51 is semiellipse ring flat-plates, and the mounting inclination angle degree of supposing this plate is A, and fluid pipeline 6 external diameters are R1, and liquid collecting sleeve pipe 7 internal diameters are R2, and the semi-minor axis of the interior elliptical aperture of above-mentioned semiellipse ring arc plate 51 is R1, and major semiaxis is R1/cosA; The semi-minor axis of outer ellipse is R2, and major semiaxis is R2/cosA.Described arc plate 51 is fixedly mounted in the middle of fluid pipeline and liquid collecting sleeve pipe by the form of welding according to above-mentioned angle of inclination A.Described inner reinforced plate 52 is surface plates, is arranged in the plane at axis place of fluid pipeline 6, and is welded and fixed with the straight line of arc plate.The endoporus lower end of inner reinforced plate 52 is that dual-side and the semi arch in semi arch and hole is tangent, and the radius of its semi arch is consistent with the external diameter R3 of back liquid pipeline 2; The outline lower end of inner reinforced plate is circular arc, and its radius is consistent with the internal diameter R4 of pump housing outer tube 8, and the size of its straight line is consistent with the semi-minor axis of arc board size.According to such scheme, the shape of division board 5 can meet liquid outlet channel and back flow channel are separated completely.The Main Function of division board 5 is that the back flow channel of compact Structure of RCP and liquid outlet channel are fused into one, and makes Structure of RCP liquid compact, storage few, thereby can realize the yarn dyeing machine of extremely low bath raio.
Phegma liquid-storing cavity 4 is for collecting the dye liquor flowing back to from creel, the structure that its structure is surrounded by pump housing outer tube 8, back liquid pipeline 2, liquid-storing cavity adjustable plate 9 and division board 5 forms, the volume of liquid-storing cavity should be determined according to the design discharge of three grades of impellers, its volume generally need to be greater than the trouble free service surplus of impeller, conventionally be set as 1.5 times of trouble free service surplus, also can be other reasonable multiples, and utilize the volume of liquid-storing cavity adjustable plate 9 adjustment liquid-storing cavities to meet the demands.4 its effects of phegma liquid-storing cavity are to guarantee that dye liquor can be stablized, continuous flowing back in three grades of vane pumps, make the work that three grades of vane pumps can be stable, produce stable dye liquor pressure head.
The volume that liquid collecting sleeve pipe 7, pump housing outer tube 8, liquid-storing cavity adjustable plate 9 surround is V1, and is equally divided into two parts by division board 5, and a part is back flow channel, and another part is liquid outlet channel; Suppose that the volume in impeller channel is V2, the maximum yarn weight that yarn dyeing machine can hold is M, and yarn water absorption rate is n, and the bath raio of yarn dyeing machine is D=M:(V1+V2+M*n).
It as shown in Fig. 2～Fig. 5, is a case study on implementation of the present utility model, the model machine of following parameter designing of take can be realized the yarn dyeing machine Structure of RCP that bath raio is 1:2.5: fluid pipe diameter 150mm, back liquid pipeline diameter 150mm(is consistent with vane pump liquid inlet diameter), fluid pipeline and back liquid pipeline weld together with orthogonal direction; Liquid-storing cavity is the cylindrical cavity of diameter 300mm, a length 400mm and coaxially installs with back liquid pipeline; Arc plate in division board is installed with miter angle degree, its diameter of bore is consistent with the internal diameter of liquid outlet channel, its vertical plate is arranged on the meridian plane of fluid pipeline, and liquid outlet channel and back flow channel are kept apart completely, after isolation, the volume of liquid-storing cavity and the volume of liquid outlet channel cavity are basic identical, be 0.03 cubic metre, meet the safe traffic demand of vane pump.Prototype test shows, with the impeller Structure of RCP of method and structure manufacturing described in the utility model, can realize the extremely low bath raio of yarn dyeing machine 1:2.5, obviously reduces the demand of dye liquor, improves dyeing efficiency and economic benefit.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change and revise above-mentioned embodiment.Therefore, the utility model is not limited to the specific embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection domain of claim of the present utility model.
Claims (6)
1. an extremely low bath raio yarn dyeing machine Structure of RCP, is characterized in that comprising back liquid pipeline (2), phegma liquid-storing cavity (4), fluid entrance (3), fluid pipeline (6) and division board (5); The back liquid pipeline of described Structure of RCP (2) and fluid entrance (3) connect with liquid inlet and the outlet of three grades of impellers of yarn dyeing machine respectively, fluid pipeline (6) is communicated with fluid entrance (3), and fluid pipeline (6) is communicated with the creel dye liquor runner of yarn dyeing machine; Phegma liquid-storing cavity (4) one end is communicated with the dye liquor catch tray of dyeing machine, and the other end is communicated with back liquid pipeline (2), and back liquid pipeline (2) is communicated with three grades of vane pumps again; Back liquid pipeline (2) intersects and separates by division board (5) with fluid pipeline (6); Division board is connected and composed by arc plate (51) and inner reinforced plate (52); Arc plate is by being socketed on the outer wall of fluid pipeline (6), and inner reinforced plate is socketed on the outer wall of back liquid pipeline (2); Leaving certain gaps uncovered by the economic plan (53) in the middle of division board, described back liquid pipeline (2) passes this breach, and because breach cross section is larger than back liquid pipeline, makes the passage of the middle breach of division board and back liquid pipeline lateral surface formation as a part for fluid pipeline (6).
2. extremely low bath raio yarn dyeing machine Structure of RCP according to claim 1, characterized by further comprising liquid collecting sleeve pipe (7), and phegma liquid-storing cavity (4) one end is communicated with the dye liquor catch tray of dyeing machine by liquid collecting sleeve pipe (7).
3. extremely low bath raio yarn dyeing machine Structure of RCP according to claim 1, it is characterized in that: phegma liquid-storing cavity (4) is for collecting the dye liquor flowing back to from creel, its structure being surrounded by pump housing outer tube (8), back liquid pipeline (2), liquid-storing cavity adjustable plate (9) and division board (5) forms, and the volume of liquid-storing cavity is greater than the trouble free service surplus of impeller; Between liquid-storing cavity adjustable plate (9) and pump housing outer tube (8), be threaded connection, by rotation liquid-storing cavity adjustable plate (9), regulate the volume of phegma liquid-storing cavity (4).
4. according to the extremely low bath raio yarn dyeing machine Structure of RCP described in claim 2 or 3, it is characterized in that: described arc plate (51) is a semiellipse ring flat-plate, the mounting inclination angle degree of this arc plate is A, fluid pipeline (6) external diameter is R1, liquid collecting sleeve pipe (7) internal diameter is R2, the semi-minor axis of the interior elliptical aperture of above-mentioned arc plate (51) is R1, and major semiaxis is R1/cosA; The semi-minor axis of outer ellipse is R2, and major semiaxis is R2/cosA; Described arc plate (51) is fixedly mounted in the middle of fluid pipeline and liquid collecting sleeve pipe by the form of welding according to above-mentioned angle of inclination A; Described inner reinforced plate (52) is a surface plate, is arranged in the plane at axis place of fluid pipeline (6), and is welded and fixed with the straight line of arc plate; The endoporus lower end of inner reinforced plate (52) is that dual-side and the semi arch in semi arch and hole is tangent, and the radius of its semi arch is consistent with the external diameter R3 of back liquid pipeline (2); The outline lower end of inner reinforced plate is circular arc, and its radius is consistent with the internal diameter R4 of pump housing outer tube (8), and the size of its straight line is consistent with the semi-minor axis of arc board size.
5. extremely low bath raio yarn dyeing machine Structure of RCP according to claim 1, it is characterized in that: the volume that liquid collecting sleeve pipe (7), pump housing outer tube (8), liquid-storing cavity adjustable plate (9) surround is V1, and be equally divided into two parts by division board (5), a part is back flow channel, and another part is liquid outlet channel; Volume in three grades of impeller channels is V2, and the maximum yarn weight that yarn dyeing machine can hold is M, and yarn water absorption rate is n, and the bath raio of yarn dyeing machine is D=M:(V1+V2+M*n).
6. extremely low bath raio yarn dyeing machine Structure of RCP according to claim 1, is characterized in that: division board is formed by described arc plate (51) and inner reinforced plate (52) welding; Arc plate is enclosed within by welding on the outer wall of fluid pipeline (6), and inner reinforced plate is enclosed within on the outer wall of back liquid pipeline (2) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443421.2U CN203559258U (en) | 2013-07-24 | 2013-07-24 | Main pump structure used for yarn dyeing machine and having extremely low bath ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443421.2U CN203559258U (en) | 2013-07-24 | 2013-07-24 | Main pump structure used for yarn dyeing machine and having extremely low bath ratio |
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| CN203559258U true CN203559258U (en) | 2014-04-23 |
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| CN201320443421.2U Withdrawn - After Issue CN203559258U (en) | 2013-07-24 | 2013-07-24 | Main pump structure used for yarn dyeing machine and having extremely low bath ratio |
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| CN (1) | CN203559258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352345A (en) * | 2013-07-24 | 2013-10-16 | 广州番禺高勋染整设备制造有限公司 | Yarn dyeing machine main pump structure with extremely low bath ratio |
| CN104846578A (en) * | 2015-05-27 | 2015-08-19 | 萧振林 | Mixed-flow pump of yarn dyeing machine having very low bath ratio of 1:2 |
-
2013
- 2013-07-24 CN CN201320443421.2U patent/CN203559258U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352345A (en) * | 2013-07-24 | 2013-10-16 | 广州番禺高勋染整设备制造有限公司 | Yarn dyeing machine main pump structure with extremely low bath ratio |
| CN104846578A (en) * | 2015-05-27 | 2015-08-19 | 萧振林 | Mixed-flow pump of yarn dyeing machine having very low bath ratio of 1:2 |
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