RU2649493C2 - Two-position valve, compatible with time-pressure filling systems and cip / sip system - Google Patents

Abstract

FIELD: engines and pumps, manufacturing technology.

SUBSTANCE: valve design allows to combine the two-position valve with the CIP/SIP cleaning and sterilization systems, which allows using this valve for liquids without their contamination. Invention is intended for systems working with pharmaceutical liquids, in chemical synthesis, food industry and other industries, where the liquid purity is important. Two-position valve comprises a valve core (1) disposed in the valve body (3) and an o-ring (2) disposed between the valve core (1) and body (3), where the valve core (1) is fitted to the valve body (3), the core (1) lower part has a bulge (9) which is connected to the core (1) second stage (11) one end, second stage (11) other end is connected to the core (1) first stage (10) one end, wherein on the first stage (10) the groove (8) is located corresponding by shape to the o-ring (2), bulge (9) outside diameter is greater than the second stage (11) outer diameter, and the second stage (11) outer diameter is greater than the first stage (10) outer diameter, wherein in the valve body (3) lower part liquid outlet (4) is located and on the valve body (3) side wall liquid inlet (5) and the connection (6) with the CIP / SIP system are provided, where the liquid inlet (5) and outlet (4), as well as the connection (6) with the CIP/SIP system communicate with the valve body (3) central opening, which is wide at both ends and narrowed in the middle, gradually expanding to the ends.

EFFECT: invention makes it possible to clean the valve in place (without its disabling) so, as required by the standard in the relevant field.

5 cl, 8 dwg

Description

FIELD OF THE INVENTION

The invention relates to a two-position valve, widely used in the filling line for liquid media, namely, a two-position valve that can be used for filling systems with the principle of dosing time-pressure ("Time Pressure") and with cleaning and sterilization in place of CIP / SIP ( Cleaning-In-Place and Sterilization-In-Place).

State of the art

On-off valves are widely used in the pharmaceutical, food, chemical and other industries because of the importance of their function. However, existing on-off valves usually have low manufacturing accuracy, and are suitable for opening and closing the supply of only a common medium, and cannot be used in the on-site cleaning system (CIP) and on-site sterilization (SIP). Thus, it is extremely important to develop an on-off valve that meets the high-tech requirements of the pharmaceutical, food and chemical industries, and is also compatible with CIP / SIP technology. In particular, the creation of an on-off valve compatible with a time-pressure dosing system is of great importance. In FIG. 8 is a structural diagram of a conventional on-off valve: the valve core is located in the housing 17, on the side of the housing 17 is connected to the fluid inlet 5, and the lower side of the housing 17 has a fluid outlet 4. Such a two-position valve cannot be cleaned with CIP / SIP and has poor switching accuracy.

Disclosure of invention

This invention is aimed at solving problems associated with low precision manufacturing of existing on-off valves and with the ability to work only with a common filler, as well as problems associated with the incompatibility of these valves with CIP / SIP technology. In particular, there is a need for a two-position valve that is compatible with CIP / SIP technology and a time-pressure dosing system, and has good tightness, characterized by ease of dismantling, ease of construction, and ease of use.

To achieve these goals, the present invention proposes a two-way valve compatible with CIP / SIP technologies and a time-pressure dosing system, which has a valve core located in the valve body, with a sealing ring located between the core and the valve body, and the valve core fitted to the body valve.

Preferably, the lower part of the valve core has a bulge which is connected to one end of the second stage, the other end of the second stage is connected to one end of the first stage, and a groove corresponding to the shape of the sealing ring is located on the first stage. In this case, the outer diameter of the thickening is greater than the outer diameter of the second stage, and the outer diameter of the second stage is larger than the outer diameter of the first stage.

Preferably, a fluid outlet is provided at the bottom of the valve body, and a liquid inlet and docking to the CIP / SIP system are provided on the side of the valve body, the fluid inlet and outlet, as well as docking to the CIP / SIP system, communicate with an opening in the center of the valve body .

Preferably, the hole in the center of the valve body is made wide at both ends and narrower in the middle with a gradual expansion from the middle to the ends.

Preferably, the central opening of the valve body has a first cutout, the lower end of which is connected to the upper end of the second cutout, and from the side, the second cutout communicates with the joint of the CIP / SIP system. At the same time, a third cutout is located below the second cut-out, which is connected to the fluid inlet from the side. The lower end of the third cut-out is connected to the upper end of the fourth cut-out, the lower end of which communicates with the fluid outlet.

Preferably, the inner diameter of the fourth cut matches the diameter of the core thickening, the inner diameter of the second cut matches the diameter of the second step of the core, the length of the second step being greater than the distance between the fourth and second cuts, and the sum of the lengths of the first and second cuts being greater than the distance between the groove and the second step core.

Preferably, the fluid inlet and docking with the CIP / SIP system are connectors resembling a pagoda in shape (tapering to one end).

Preferably, a connecting hole is provided at the other end of the first stage.

Compared with the prior art, the described on-off valve is connected to the CIP / SIP system, and the core and valve body can be manufactured with greater accuracy and can be well adjusted to provide high accuracy switching valve modes.

The advantages of the present invention are as follows.

1. The valve body and core are made from a single piece, which eliminates the general welding deformation, improves the accuracy of machining parts, eliminates sanitary problems, and also meets the requirements of good manufacturing practice (GMP).

2. The valve core undergoes a special surface hardening, good tightness can be achieved, and the formation of particles when the valve core and valve body slide relative to each other can be complicated.

3. All joints on the valve body have good tightness and fit under pressure, and they can also be easily dismantled, cleaned and sterilized.

4. The valve body and core have a special and original design, and the functions of closing, suctioning, closing and CIP / SIP can be realized by installing the valve body and core in various opposite positions.

This invention is characterized by simplicity of design, ease of use and compatibility with CIP / SIP technology.

Brief Description of the Drawings

In FIG. 1 is a block diagram of an on-off valve compatible with time-pressure and CIP / SIP metering technologies.

In FIG. 2 is a sectional view of the valve of FIG. one.

In FIG. 3 shows a block diagram of a valve core.

In FIG. 4 shows a diagram of a valve body.

In FIG. 5 is a diagram of a valve according to the present invention in an off position and in a suction position.

In FIG. 6 is a diagram of a valve according to the present invention in the on position.

In FIG. 7 is a diagram of a valve according to the present invention in CIP / SIP mode.

In FIG. 8 is a block diagram of a prior art on-off valve.

The implementation of the invention

Symbols in the drawings:

1 valve core, 2 o-ring, 3 valve body, 4 fluid outlet, 5 fluid inlet, 6 docking with the CIP / SIP system, 7 connecting hole, 8 groove, 9 thickening, 10 first stage, 11 second stage, 12 first neckline, 13th second neckline, 14th third neckline, 15th fourth neckline, 16 core of a conventional valve, 17 body of a conventional valve.

For clarity of understanding, the invention has been described in more detail with reference to the accompanying drawings and preferred embodiments.

This invention is a two-position valve compatible with time-pressure and CIP / SIP metering technologies and relates to filling equipment for the food, medical, cosmetic and chemical industries. In FIG. 1 is a block diagram of an on-off valve compatible with time-pressure and CIP / SIP metering technologies. A surface hardening core 1 is located in the housing 3, with a connecting hole 7 provided at one end of the core 1, and the core 1 may be connected to a drive mechanism.

As shown in FIG. 2, the core 1 and the valve body 3 are sealed with a sealing ring 2, which is located in the groove 8 of the core 1, while the sealing ring 2 coincides in shape with the groove 8 on the core 1 to seal the gap between the core 1 and the valve body 3. The core 1 is fitted to the valve body 3, and the maximum clearance between the core 1 and the body is 8 μm. The functions of closing, suctioning, turning on and the CIP / SIP valve mode can be realized when the core 1 is located in different positions relative to the valve body 3. On the side of the valve body 3, connections are provided, in particular a fluid inlet 5 and a docking 6 with a CIP / SIP system that resembles a pagoda in shape. At the same time, the opening of the inlet 5 for liquid and the opening of the docking 6 CIP / SIP have a tight thread and can be directly connected to various pipes, and can also be sealed after fixing with sealing nuts. The lower part of the valve body 3 is the fluid outlet 4, which is an end mate and is connected using a hygienic clamp, and the fluid outlet 4 can be sealed with a sanitary pad.

In FIG. 3 shows a block diagram of a valve core 1. The lower part of the core 1 is a bulge 9, which is connected to one end of the second stage 11, and the other end of the second stage 11 is connected to one end of the first stage 10. At the other end of the first stage 10 there is a connecting hole 7. A groove 8 corresponding in shape to the sealing ring 2, is located between the second stage 11 and the connecting hole 7 in the first stage 10. The outer diameter of the bulge 9 is larger than the outer diameter of the second stage 11, and the outer diameter of the second stage 11 is larger than the outer diameter of the first stage 10.

In FIG. 4 shows a block diagram of a valve body 3. The hole in the center of the housing 3 is wide at the ends and narrower in the middle, and gradually widens from the middle to both ends. The hole in the center of the housing 3 consists of a first cut-out 12, a second cut-out 13, a third cut-out 14 and a fourth cut-out 15. The lower end of the first cut-out 12 is connected to the upper end of the second cut-out 13, and the second cut-out 13 is connected to the side with the CIP / SIP system one side of the valve body 3. The third cutout 14 is located below the second cutout 13 and is connected laterally to the fluid inlet 5 on the same side of the housing where the docking with the CIP / SIP system 6 is located. The lower end of the third cutout 14 is connected to the upper end of the fourth cutout 15, and the lower end of the fourth cutout 15 communicates with the fluid outlet 4 on the lower part of the valve body 3.

The inner diameter of the fourth cutout 15 corresponds to the diameter of the bulge 9, and the inner diameter of the second cutout 13 corresponds to the diameter of the second step 11. The length of the second step 11 is greater than the distance between the fourth cutout 15 and the second cutout 13, and the sum of the length of the first cutout 12 and the second cutout 13 is greater than the distance between groove 8 and second stage 11.

In FIG. 5 is a schematic diagram of a valve according to the present invention in an idle suction position. Core 1 is inoperative in suction mode; fluid inlet 5, fluid outlet 4 and docking with the CIP / SIP system 6 are mutually blocked due to the fact that the bulge 9 on the lower side of the core 1 is located next to the inner wall of the fourth cutout 15 and in the highest position, the inner wall of the second cutout 13 located near the outer wall of the second stage 11, and the liquid cannot pass through the valve.

In FIG. 6 is a schematic diagram of a valve according to the present invention in an operational transmission position. The core 1 moves down from the inoperative position of the suction to the working position. Since the diameter of the thickening 9 is less than the inner diameter of the outlet 4 for liquid, the inlet 5 and outlet 4 for the liquid are open; and since the inner wall of the second cutout 13 is adjacent to the outer wall of the second stage 11, the docking 6 with the CIP / SIP system is closed, and the inlet 5 and the outlet 4 for the liquid are open, and the liquid can flow through the valve.

In FIG. 7 is a diagram of a valve according to the present invention in a cleaning and sterilization position. The valve core 1 moves down from the operating position to the cleaning and sterilization position. Since the second stage 11 is completely out of the second cutout 13, and the outer diameter of the first step 10 is smaller than the diameter of the second cutout 13, which is the minimum inner diameter in the center of the valve body 3, input 5 and output 4 for liquid, and also docking 6 with the system CIP-SIPs are fully open, with the core 1 and valve body 3 sealed with O-ring 2 in the first cutout 12. The valve can operate in cleaning and sterilization mode when the appropriate medium is supplied to interface 6 with the CIP / SIP system.

When on-site cleaning and sterilization is performed, the valve core 1 is located in the position shown in FIG. 7; the docking 6 with the CIP / SIP system and the fluid inlet 5 are cleaned with pumped water, then purged and dried with sterile compressed air, sterilized with clean and saturated steam, and then cooled and dried with clean compressed air.

When dosing according to the time-pressure principle, a constant-pressure liquid is supplied to the inlet 5, and the valve core 1 switches from the position shown in FIG. 5 to the position shown in FIG. 6, for a predetermined time necessary to complete the filling of the liquid into the container.

Claims (5)

1. A two-position valve compatible with the time-pressure dosing system and the CIP / SIP cleaning and sterilization system, which has a valve core (1) located in the valve body (3) and an o-ring (2) located between the core (1) and a valve body (3), where the valve core (1) is fitted to the valve body (3), the lower part of the core (1) has a bulge (9) that is connected to one end of the second stage (11) of the core (1), the other end the second stage (11) is connected to one end of the first stage (10) of the core (1), and on the first of the shaft (10) there is a groove (8) corresponding in shape to the sealing ring (2), the outer diameter of the bulge (9) is larger than the outer diameter of the second stage (11), and the outer diameter of the second stage (11) is larger than the outer diameter of the first stage (10) moreover, in the lower part of the valve body (3) there is an outlet (4) for liquid, and on the side wall of the valve body (3) there is an inlet (5) for liquid and a docking (6) with the CIP / SIP system, where the inlet (5) and the fluid outlet (4), as well as the docking (6) with the CIP / SIP system, communicate with the central bore of the valve body (3), which is wide at both ends and narrowed in the middle, gradually expanding towards the ends. 2. The on-off valve according to claim 1, in which the central hole of the valve body (3) has a first cutout (12), a second cutout (13), a third cutout (14) and a fourth cutout (15), where the lower end of the first cutout (12 ) is connected to the upper end of the second cutout (13), the second cutout (13) communicates on the side wall with a joint (6) with the CIP / SIP system, the third cutout (14) is located below the second cutout (13) and communicates on the side wall with the entrance (5) for liquid, the lower end of the third cutout (14) is connected to the upper end of the fourth cutout (15), and the lower end of the fourth cutout (15) is connected Xia with an outlet (4) for the liquid. 3. The on-off valve according to claim 2, in which the inner diameter of the fourth cutout (15) corresponds to the diameter of the bulge (9) of the core (1), the inner diameter of the second cutout (13) corresponds to the diameter of the second stage (11) of the core (1), the length of the second steps (11) is greater than the distance between the fourth cutout (15) and the second cutout (13), and the sum of the lengths of the first cutout (12) and the second cutout (13) is greater than the distance between the groove (8) and the second step (11) of the core (1) . 4. The on-off valve according to claim 1, in which the inlet (5) for the liquid and the docking (6) with the CIP-SIP system are interfaces that have a stepped narrowing to one end. 5. A two-position valve according to claim 1, in which a connecting hole (7) is made at the outer end of the first stage (10) of the core (1).

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