CN115414856B - Automatic charging and dissolving device for cation dye glacial acetic acid - Google Patents
Automatic charging and dissolving device for cation dye glacial acetic acid Download PDFInfo
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- CN115414856B CN115414856B CN202211167187.5A CN202211167187A CN115414856B CN 115414856 B CN115414856 B CN 115414856B CN 202211167187 A CN202211167187 A CN 202211167187A CN 115414856 B CN115414856 B CN 115414856B
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- angle seat
- core
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229960000583 acetic acid Drugs 0.000 title claims abstract description 18
- 239000012362 glacial acetic acid Substances 0.000 title claims abstract description 18
- 150000001768 cations Chemical class 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 17
- 125000002091 cationic group Chemical group 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000975 dye Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/11—Maintenance of mixers using fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2111—Flow rate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to the technical field of dye processing. The automatic charging and dissolving device comprises a charging pipeline, a flowmeter, a charging pump and a plurality of angle seat valves, wherein each angle seat valve comprises a charging angle seat valve, a discharging angle seat valve, a water inlet angle seat valve and a water outlet angle seat valve; a feeding pump, a feeding angle seat valve, a flowmeter and a discharging angle seat valve are sequentially arranged on the feeding pipeline along the conveying direction of the materials; and a water outlet bypass pipe and a water inlet bypass pipe are arranged on the feeding pipelines at the upper end and the lower end of the flowmeter. The invention can greatly improve the charging efficiency and the automation degree of glacial acetic acid, reduce errors caused by manual operation and greatly improve the production efficiency. Through the switching of the feeding angle seat valve, the discharging angle seat valve, the water inlet angle seat valve and the water outlet angle seat valve, normal feeding and cleaning of the flowmeter can be realized, and the service life and the detection accuracy of the flowmeter are ensured.
Description
Technical Field
The invention relates to the technical field of dye processing, in particular to an automatic charging and dissolving device for a cationic dye glacial acetic acid.
Background
Glacial acetic acid is a pH value regulator widely used in the application process of cationic dyes, and is metered manually and then added into a dissolving tank in the most traditional glacial acetic acid charging and dissolving device. However, as the demand for automation of industrial production is higher, the conventional feeding mode cannot meet the actual use demand, and particularly cannot be coupled with the functions of the existing automatic process equipment, which severely restricts the overall working efficiency and the standardized process of production line processing. Therefore, at present, some automatic feeding devices are also arranged through an electric control valve, a pump and the like, but the devices can only meet the feeding requirement, and have certain defects in the aspects of feeding accuracy, reaction sensitivity and the like.
Disclosure of Invention
The invention aims to provide an automatic charging and dissolving device for cation dye glacial acetic acid, which has the functions of accurate feeding and flushing.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the automatic charging and dissolving device for the cationic dye glacial acetic acid comprises a charging pipeline, a flowmeter, a charging pump and a plurality of angle seat valves, wherein each angle seat valve comprises a charging angle seat valve, a discharging angle seat valve, a water inlet angle seat valve and a water outlet angle seat valve; a feeding pump, a feeding angle seat valve, a flowmeter and a discharging angle seat valve are sequentially arranged on the feeding pipeline along the conveying direction of the materials; the feeding pipeline at the upper end and the lower end of the flowmeter is provided with a water outlet bypass pipe and a water inlet bypass pipe, and the water inlet angle seat valve and the water outlet angle seat valve are respectively positioned on the water inlet bypass pipe and the water outlet bypass pipe.
Preferably, the feeding pipeline is connected with the water inlet bypass pipe and the water outlet bypass pipe through a three-way joint respectively.
Preferably, the angle seat valves are all pneumatic angle seat valves.
Preferably, the angle seat valve comprises a valve body, a pneumatic mechanism and a valve core, wherein the valve body is tubular, one end of the valve body is an inlet end, and the other end of the valve body is an outlet end; one side of the valve body is provided with a connecting seat which inclines towards the outlet end; the pneumatic mechanism is arranged on the connecting seat, and the telescopic end of the pneumatic mechanism faces into the connecting seat and is connected with the valve rod; the valve core is arranged at the end part of the valve rod;
a valve seat is arranged at a position, opposite to the connecting seat, in the valve body, and a valve hole matched with the valve core is formed in the valve seat;
the pneumatic mechanism drives the valve core to do linear motion through the valve rod so as to realize the blocking or opening of the valve hole by utilizing the valve core.
Preferably, the valve hole on the valve seat is a stepped round hole, the large end of the valve hole faces the connecting seat, and a ring of sealing edges with semicircular sections are arranged on the stepped surface of the valve hole;
the valve core is provided with an annular sealing gasket at the position opposite to the sealing edge, and after the valve core stretches into the valve hole, the sealing edge is pressed by the sealing gasket to form the sealing of the valve hole.
Preferably, the opening part of the small end of the valve hole is provided with a ring-shaped locking shoulder;
the valve core comprises a stepped truncated cone-shaped core column, a round column cavity is arranged in the core column, a main piston which is in sliding fit with the column cavity is arranged at the upper part of the column cavity, a valve rod penetrates into the column cavity and is fixedly connected with the main piston, and the valve rod and the top of the core column form sliding fit with gas tightness;
the bottom of the column cavity of the core column is also provided with a central blind hole, the side wall of the core column corresponding to the lower end of the central blind hole is provided with a plurality of round transverse holes extending along the radial direction of the core column, locking pistons are arranged in the round transverse holes, and driving oil is filled in the column cavity, the central blind hole and the round transverse holes between the locking pistons and the main piston;
the outer side wall of the core column corresponding to the outer end of the round transverse hole is also provided with a storage cavity for communication, the storage cavity is square, and an adaptive locking head is arranged in the storage cavity; the locking head is connected with the locking piston through a connecting rod;
when the valve hole is plugged, the valve rod drives the valve core to move into the valve hole, and the sealing edge compresses the sealing gasket; then the valve rod is continuously pressed down to drive the main piston to be pressed down in the column cavity, the main piston pushes the locking piston by using driving oil, and then the locking head is pushed out of the storage cavity and is blocked by the locking shoulder, so that limit locking for preventing the valve core from backing back is formed;
when the valve hole is opened, the valve rod drives the main piston to retract to the upper part of the column cavity, and the locking head retracts to the accommodating cavity under the action of external pressure to unlock the valve core; the valve rod is retracted continuously until the main piston is contacted with the top surface of the column cavity, the core column is driven to lift up, and the valve core is withdrawn from the valve hole.
Preferably, the main piston is composed of a first plug body and a second plug body, and a buffer spring is arranged between the first plug body and the second plug body.
Preferably, the upper end of the stem extends outwardly from a position opposite the valve stem to form a stabilizing sleeve.
Preferably, a high-pressure locking assembly is further arranged in the locking head, the high-pressure locking assembly comprises a high-pressure locking hole arranged in the locking head, the high-pressure locking hole is perpendicular to the locking shoulder and is a stepped hole which is small in section and large in section and far away from the locking shoulder; the high-pressure locking hole is characterized in that a high-pressure piston is arranged in a large section of the high-pressure locking hole, a locking pin is arranged in a small section of the high-pressure locking hole, the locking pin is connected with the high-pressure piston, a reset spring is sleeved outside the locking pin, and the reset spring is positioned between the high-pressure piston and a stepped surface of the high-pressure locking hole; the locking shoulder is also provided with a pin hole matched with the locking pin;
after the valve core completes the blocking of the valve hole, and when the pipeline pressure at the inlet end of the valve body exceeds a threshold value, the pipeline pressure can overcome the elasticity of a return spring and press and send the end part of the locking pin into the pin hole, so that the locking pin forms anti-withdrawal locking of the locking head; when the pipeline pressure at the inlet end of the valve body is lower than a threshold value, the reset spring can drive the locking pin to retract into the high-pressure locking hole completely.
Preferably, the two ends of the valve body are provided with flange plates or clamping plates for connecting with the pipeline.
The beneficial effects of the invention are concentrated in that:
1. the feeding efficiency and the automation degree of glacial acetic acid can be greatly improved, errors caused by manual operation are reduced, and the production efficiency can be greatly improved.
2. Through the switching of the feeding angle seat valve, the discharging angle seat valve, the water inlet angle seat valve and the water outlet angle seat valve, normal feeding and cleaning of the flowmeter can be realized, and the service life and the detection accuracy of the flowmeter are ensured. When charging is needed, the feeding angle seat valve and the discharging angle seat valve are opened, the water inlet angle seat valve and the water outlet angle seat valve are closed, the charging pump pumps glacial acetic acid, the flowmeter counts the charging amount, and the charging amount is used as a data source for automatic control. When the flowmeter needs to be washed, the water inlet angle seat valve and the water outlet angle seat valve are opened, the material inlet angle seat valve and the material outlet angle seat valve are closed, and washing water washes the flowmeter.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the angle seat valve of the present invention when opened;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of the structure shown in FIG. 2 when the valve spool blocks the valve orifice;
FIG. 5 is an enlarged view of portion B of FIG. 4;
FIG. 6 is a schematic view of the structure shown in FIG. 2 when the locking head is locked;
FIG. 7 is an enlarged view of portion C of FIG. 6;
fig. 8 is an enlarged view of a portion D in fig. 7.
Detailed Description
As shown in fig. 1-8, the automatic charging and dissolving device for the cationic dye glacial acetic acid comprises a charging pipeline 1, a flowmeter 2, a charging pump 3 and a plurality of angle seat valves, wherein the angle seat valves can adopt electric angle seat valves and pneumatic angle seat valves. Wherein, the pneumatic angle seat valve is optimal, has excellent control precision and reaction efficiency, is convenient to maintain and has low failure rate. As shown in fig. 1, the angle seat valve of the present invention comprises four angle seat valves, namely a feeding angle seat valve 4, a discharging angle seat valve 5, a feeding angle seat valve 6 and a discharging angle seat valve 7. The feeding pipeline 1 is sequentially provided with a feeding pump 3, a feeding angle seat valve 4, a flowmeter 2 and a discharging angle seat valve 5 along the conveying direction of materials. The feeding pipeline 1 at the upper end and the lower end of the flowmeter 2 is provided with a water outlet bypass pipe 8 and a water inlet bypass pipe 9, and the water inlet angle seat valve 6 and the water outlet angle seat valve 7 are respectively positioned on the water inlet bypass pipe 9 and the water outlet bypass pipe 8. The feeding pipeline 1 is generally connected with a water inlet bypass pipe 9 and a water outlet bypass pipe 8 through three-way joints 10, and two bypass pipes are needed to use the two three-way joints 10.
Through the switching of the feeding angle seat valve 4, the discharging angle seat valve 5, the water inlet angle seat valve 6 and the water outlet angle seat valve 7, normal feeding and cleaning of the flowmeter can be realized, and the service life and detection accuracy of the flowmeter 2 are ensured. When charging is needed, the feed angle seat valve 4 and the discharge angle seat valve 5 are opened, the feed angle seat valve 6 and the discharge angle seat valve 7 are closed, the charging pump 3 pumps glacial acetic acid, the flowmeter 2 counts the charging amount, and the charging amount is used as a data source for automatic control. When the flowmeter 2 needs to be flushed, the water inlet angle seat valve 4 and the water outlet angle seat valve 5 are opened, the water inlet angle seat valve 6 and the water outlet angle seat valve 7 are closed, and flushing water is flushed through the flowmeter 2.
The pneumatic angle seat valve can adopt the conventional angle seat valve, but the valve core is controlled by completely depending on pneumatic control force output by a pneumatic mechanism when the common angle seat valve works. For the pipeline system with complex follow-up pipeline structure, long conveying distance and high lifting height, the conventional pneumatic angle seat valve can not completely meet the use requirement because the pressure variation is large under different feeding and conveying conditions due to the fact that the limit value of the internal pressure of the pipeline is large and the stability of the valve core is controlled completely through pneumatic control force.
Therefore, the invention also discloses a pneumatic angle seat valve which can mechanically lock the valve core at the end of the plugging stroke, and reduce the requirement on the pneumatic precision of a pneumatic mechanism.
As shown in fig. 2 and 3, the angle seat valve includes a valve body 11, a pneumatic mechanism 12 and a valve core 13, wherein the valve body 11 is tubular, one end is an inlet end, the other end is an outlet end, the upper left end is an outlet end in fig. 2, and the lower right end is an inlet end. Regarding the form of combination of the valve body 11 and the pipe, flange plates or clamping plates for connecting with the pipe may be provided at both ends of the valve body 11. One side of the valve body 11 is provided with a connecting seat 14 inclined toward the outlet end, said connecting seat 14 being used for mounting the pneumatic mechanism 12. As shown in fig. 2, the pneumatic mechanism 12 is mounted on the connecting seat 14, and the telescopic end of the pneumatic mechanism 12 faces into the connecting seat 14 and is connected with the valve rod 15. The valve core 13 is arranged at the end part of the valve rod 15, and two strokes of expansion and contraction are realized under the pushing of the valve rod 15.
A valve seat 16 is arranged at a position opposite to the connecting seat 14 in the valve body 11, and a valve hole 17 matched with the valve core 13 is arranged on the valve seat 16. The pneumatic mechanism 12 drives the valve core 13 to perform linear motion through the valve rod 15, so that the valve core 13 is utilized to realize the sealing or opening of the valve hole 17. In order to ensure the stability of the valve core 13 to the sealing of the valve hole 17, the valve hole 17 on the valve seat 16 is a stepped round hole, the large end faces the connecting seat 14, and a ring-shaped sealing edge 18 with a semicircular section is arranged on the stepped surface of the valve hole 17. An annular sealing gasket 19 is arranged on the valve core 13 at a position opposite to the sealing rib 18, and after the valve core 13 stretches into the valve hole 17, the sealing rib 18 is pressed by the sealing gasket 19 to form a seal for the valve hole 17.
In order to achieve locking of the valve core 13 in a state of blocking the valve hole 17, as shown in fig. 3, the present invention is particularly characterized in that a ring-shaped locking shoulder 20 is formed at the mouth of the small end of the valve hole 17, and the locking shoulder 20 is used for being matched with the locking head 27, and when the locking head 27 is extended, the locking head 27 is blocked with the locking shoulder 20.
Since the locking head 27 is in the non-blocking state (i.e., in the open state of the seat valve), the spool 13 needs to have a function of freely sliding up and down, which does not interfere with the valve hole 17. However, in the closed state (i.e., in the closed state of the angle seat valve), the locking head 27 on the valve element 13 can be extended. That is, it has the following functions: the valve core 13 can transversely retract, and the lifting of the valve core 13 is not affected; but also laterally so as to form a abutment with the locking shoulder 20.
In order to achieve the above functions, as shown in fig. 3, the valve core 13 of the present invention includes a stepped truncated cone-shaped stem 21, a circular stem cavity 22 is provided in the stem 21, a main piston that is slidably engaged with the stem cavity 22 is provided in an upper portion of the stem cavity 22, the valve rod 15 penetrates into the stem cavity 22 and is fixedly connected with the main piston, and the valve rod 15 is slidably engaged with a top portion of the stem 21, which has gas tightness. In order to ensure stability between the valve stem 15 and the stem 13, the upper end of the stem 21 extends outwardly from a position opposite the valve stem 15, forming a stabilizing sleeve 32. In this form, to provide an airtight sliding, a seal ring may be provided directly between the stabilizing sleeve 32 and the valve stem 15, such as a seal groove provided on the inside wall of the stabilizing sleeve 32, the seal ring being located within the seal groove and maintained in intimate contact with the valve stem 15.
The bottom of the column cavity 22 of the core column 21 is also provided with a central blind hole 23, and the size of the central blind hole 23 is smaller than that of the column cavity 22, so that the main piston can drive the subsequent components to obtain a larger stroke through a plurality of smaller piston strokes in the moving process. As shown in fig. 8, a plurality of circular transverse holes 24 extending along the radial direction of the stem 21 are arranged on the side wall of the stem 21 corresponding to the lower end of the central blind hole 23, a locking piston 25 is arranged in the circular transverse holes 24, and driving oil is filled in the column cavity 22, the central blind hole 23 and the circular transverse holes 24 between the locking piston 25 and the main piston. That is, during the up-and-down movement of the master piston, it is possible to push the lock piston 25 to act laterally by depressing the drive oil, and thereby to extend the lock member (lock head 27) by the lock piston 25. When the main piston rises, the locking piston 25 can be pressed back again under the influence of the external pressure.
As to the installation mode of the locking head 27, as shown in fig. 3 and 8, a receiving cavity 26 is further provided on the outer side wall of the stem 21 corresponding to the outer end of the circular cross hole 24, the receiving cavity 26 is square, and an adaptive locking head 27 is provided in the receiving cavity 26. The locking head 27 is connected to the locking piston 25 by a connecting rod 28.
During the use process:
when the valve hole 17 is plugged, as shown in fig. 4 and 5, the valve rod 15 firstly drives the valve core 13 to move into the valve hole 17, and the sealing edge 18 presses the sealing gasket 19. As shown in fig. 6 and 7, the valve rod 15 is further pressed down, so that the main piston is driven to press down in the column cavity 22, and the main piston pushes the locking piston 25 by using driving oil, so that the locking head 27 is pushed out of the accommodating cavity 26, and the locking head 27 is blocked by the locking shoulder 20, so that limit locking for preventing the valve core 13 from backing is formed.
When the valve hole 17 is opened, as shown in fig. 2 and 3, the valve rod 15 drives the main piston to retract to the upper part of the column cavity 22, and the locking head 27 retracts to the receiving cavity 26 under the action of external pressure, so that the valve core 13 is unlocked. After the valve rod 15 is retracted continuously until the main piston contacts with the top surface of the column cavity 22, the core column 21 is driven to lift up, and the valve core 13 is withdrawn from the valve hole 17.
Of course, when the above-mentioned action forms are adopted, the lateral movement stroke of the locking head 27 is completely dependent on the vertical movement stroke of the main piston, which in turn is completely dependent on the control stroke of the pneumatic mechanism; this greatly improves the accuracy of pneumatic control force of the pneumatic mechanism, and in order to solve the above problem, the main piston of the present invention is composed of a first plug body 29 and a second plug body 30, and a buffer spring 31 is disposed between the first plug body 29 and the second plug body 30. The first plug body 29, the second plug body 30 and the buffer spring 31 jointly form the main piston, so that the main piston is self-compression, the self-adaptive volume change can be realized under larger pneumatic control force, and the pneumatic control difficulty is greatly reduced.
In addition, since the variable main piston itself has a certain volume deformation capability, the internal pressure of the pipe gradually increases as the charge pump 3 continues to operate. The excessive pipe internal pressure will back-press the locking piston 25 to a certain extent, and since the driving oil does not have compressibility, it will cause the second piston 30 to be pressed up, and when reaching a certain extent, there is a possibility that the locking head 27 is completely pressed back into the receiving chamber 26, thereby causing the locking failure of the locking head 27.
In order to solve the above-mentioned problems, it is also preferable that the inside of the locking head 27 is further provided with a high-pressure locking assembly as shown in fig. 8, which functions in that it also forms a secondary lock for the locking head 27 when the pipe internal pressure is high, so as to prevent the locking head 27 from being pushed back. It comprises a high pressure locking hole 33 provided in the locking head 27, said high pressure locking hole 33 being perpendicular to the locking shoulder 20 and being a small stepped hole close to the locking shoulder 20 and a large stepped hole distant from the locking shoulder 20. The high-pressure locking hole 33 is characterized in that a high-pressure piston 34 is arranged in a large section of the high-pressure locking hole 33, a locking pin 35 is arranged in a small section of the high-pressure locking hole, the locking pin 35 is connected with the high-pressure piston 34, a return spring 36 is sleeved outside the locking pin 35, and the return spring 36 is positioned between the high-pressure piston 34 and a stepped surface of the high-pressure locking hole 33. The locking shoulder 20 is further provided with a pin hole 37 which cooperates with the locking pin 35.
After the valve core 13 completes the blocking of the valve hole 17, and when the pipeline pressure at the inlet end of the valve body 11 exceeds a threshold value, the pipeline pressure can overcome the elastic force of the return spring 36 and press the end part of the locking pin 35 into the pin hole 37, so that the locking pin 35 forms anti-withdrawal locking on the locking head 27. When the line pressure at the inlet end of the valve body 11 is below the threshold value, the return spring 36 can drive the locking pin 35 to retract completely into the high pressure locking hole 33.
Claims (6)
1. The automatic charging and dissolving device for the cationic dye glacial acetic acid comprises a charging pipeline (1), a flowmeter (2), a charging pump (3) and a plurality of angle seat valves, wherein each angle seat valve comprises a charging angle seat valve (4), a discharging angle seat valve (5), a water inlet angle seat valve (6) and a water outlet angle seat valve (7); a feeding pump (3), a feeding angle seat valve (4), a flowmeter (2) and a discharging angle seat valve (5) are sequentially arranged on the feeding pipeline (1) along the conveying direction of the materials; the feeding pipeline (1) at the upper end and the lower end of the flowmeter (2) is provided with a water outlet bypass pipe (8) and a water inlet bypass pipe (9), the water inlet angle seat valve (6) and the water outlet angle seat valve (7) are respectively positioned on the water inlet bypass pipe (9) and the water outlet bypass pipe (8), the angle seat valves are pneumatic angle seat valves, each angle seat valve comprises a valve body (11), a pneumatic mechanism (12) and a valve core (13), the valve body (11) is tubular, one end is a water inlet end, and the other end is a water outlet end; one side of the valve body (11) is provided with a connecting seat (14) which inclines towards the outlet end; the pneumatic mechanism (12) is arranged on the connecting seat (14), and the telescopic end of the pneumatic mechanism (12) faces into the connecting seat (14) and is connected with the valve rod (15); the valve core (13) is arranged at the end part of the valve rod (15);
a valve seat (16) is arranged at a position, opposite to the connecting seat (14), in the valve body (11), and a valve hole (17) matched with the valve core (13) is formed in the valve seat (16);
the pneumatic mechanism (12) drives the valve core (13) to do linear motion through the valve rod (15) so as to realize the blocking or opening of the valve hole (17) by utilizing the valve core (13);
the valve hole (17) on the valve seat (16) is a stepped round hole, the large end of the valve hole faces the connecting seat (14), and a circle of annular sealing edges (18) with semicircular sections are arranged on the stepped surface of the valve hole (17);
an annular sealing gasket (19) is arranged at a position, opposite to the sealing edge (18), of the valve core (13), and after the valve core (13) stretches into the valve hole (17), the sealing edge (18) is pressed tightly through the sealing gasket (19) to form a seal for the valve hole (17);
the opening part of the small end of the valve hole (17) is provided with a ring-shaped locking shoulder (20);
the valve core (13) comprises a stepped truncated cone-shaped core column (21), a round column cavity (22) is arranged in the core column (21), a main piston which is in sliding fit with the column cavity (22) is arranged at the upper part of the column cavity (22), a valve rod (15) penetrates into the column cavity (22) and is fixedly connected with the main piston, and the valve rod (15) and the top of the core column (21) form sliding fit with gas tightness;
the bottom of a column cavity (22) of the core column (21) is also provided with a central blind hole (23), a plurality of round transverse holes (24) extending along the radial direction of the core column (21) are arranged on the side wall of the core column (21) corresponding to the lower end of the central blind hole (23), a locking piston (25) is arranged in the round transverse holes (24), and driving oil is filled in the column cavity (22), the central blind hole (23) and the round transverse holes (24) between the locking piston (25) and the main piston;
the outer side wall of the core column (21) corresponding to the outer end of the round transverse hole (24) is also provided with a containing cavity (26) for communication, the containing cavity (26) is square, and an adaptive locking head (27) is arranged in the containing cavity (26); the locking head (27) is connected with the locking piston (25) through a connecting rod (28);
when the valve hole (17) is plugged, the valve rod (15) drives the valve core (13) to move into the valve hole (17) at first, and the sealing edge (18) presses the sealing gasket (19); then the valve rod (15) is continuously pressed down to drive the main piston to be pressed down in the column cavity (22), the main piston pushes the locking piston (25) by using driving oil, and then the locking head (27) is pushed out of the storage cavity (26), and the locking head (27) is blocked by the locking shoulder (20) to form limit locking for preventing the valve core (13) from retreating;
when the valve hole (17) is opened, the valve rod (15) drives the main piston to retract to the upper part of the column cavity (22), and the locking head (27) retracts to the accommodating cavity (26) under the action of external pressure to unlock the valve core (13); the valve rod (15) is retracted continuously until the main piston is contacted with the top surface of the column cavity (22), the core column (21) is driven to lift up, and the valve core (13) is withdrawn from the valve hole (17).
2. The cationic dye glacial acetic acid automatic feeding and dissolving device according to claim 1, wherein: the feeding pipeline (1) is connected with the water inlet bypass pipe (9) and the water outlet bypass pipe (8) through a three-way joint (10) respectively.
3. The cationic dye glacial acetic acid automatic feeding and dissolving device according to claim 1, wherein: the main piston is composed of a first plug body (29) and a second plug body (30), and a buffer spring (31) is arranged between the first plug body (29) and the second plug body (30).
4. The automatic charging and dissolving device for the cationic dye glacial acetic acid according to claim 3, characterized in that: the upper end of the stem (21) extends outwards at a position opposite to the valve rod (15) to form a stabilizing sleeve (32).
5. The automatic charging and dissolving device for the cationic dye glacial acetic acid according to claim 4, wherein: the inside of the locking head (27) is also provided with a high-pressure locking assembly, the high-pressure locking assembly comprises a high-pressure locking hole (33) arranged in the locking head (27), and the high-pressure locking hole (33) is perpendicular to the locking shoulder (20) and is a stepped hole with a small section close to the locking shoulder (20) and a large section far away from the locking shoulder (20); a high-pressure piston (34) is arranged in a large section of the high-pressure locking hole (33), a locking pin (35) is arranged in a small section, the locking pin (35) is connected with the high-pressure piston (34), a return spring (36) is sleeved outside the locking pin (35), and the return spring (36) is positioned between the high-pressure piston (34) and a step surface of the high-pressure locking hole (33); the locking shoulder (20) is also provided with a pin hole (37) matched with the locking pin (35);
after the valve core (13) completes the blocking of the valve hole (17), and when the pipeline pressure at the inlet end of the valve body (11) exceeds a threshold value, the pipeline pressure can overcome the elasticity of the return spring (36) to press the end part of the locking pin (35) into the pin hole (37), so that the locking pin (35) forms anti-withdrawal locking on the locking head (27); when the pipeline pressure at the inlet end of the valve body (11) is lower than a threshold value, the return spring (36) can drive the locking pin (35) to retract into the high-pressure locking hole (33) completely.
6. The automatic charging and dissolving device for the cationic dye glacial acetic acid according to claim 5, wherein: and flange plates or clamping plates for connecting with the pipeline are arranged at two ends of the valve body (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211167187.5A CN115414856B (en) | 2022-09-23 | 2022-09-23 | Automatic charging and dissolving device for cation dye glacial acetic acid |
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| CN202211167187.5A CN115414856B (en) | 2022-09-23 | 2022-09-23 | Automatic charging and dissolving device for cation dye glacial acetic acid |
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| CN115414856B true CN115414856B (en) | 2023-12-26 |
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| CN115963877B (en) * | 2023-01-10 | 2024-03-29 | 浙江京华激光科技股份有限公司 | Viscosity control system and viscosity control method for coating fluid |
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