High strength support main valve for lyophilizer

Abstract

The utility model discloses a high strength support main valve of freeze dryer, including casing, main valve oil cylinder, flange subassembly, first main valve valve plate, second main valve valve plate, main shaft, first main valve guide rod and second main valve guide rod, and the main valve oil cylinder is connected with the casing through the flange subassembly, one end of main shaft is connected with main valve oil cylinder, and the other end of main shaft is connected with first main valve valve plate, and one end of first main valve guide rod is connected with second main valve valve plate, and first main valve valve plate can slide and be equipped on first main valve guide rod, and one end of second main valve guide rod is connected with casing, and second main valve valve plate can slide and be equipped on second main valve guide rod. Belong to freeze dryer valve technical field, and the purpose is to solve the problem of the high power of main valve structure oil cylinder, the high cost of maintaining equipment in the prior art. The technical effect reached is that: effectively reduce various faults in the equipment operation, reduce the power of main valve oil cylinder, save resources, and reduce the artificial maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of freeze dryer valve technology, specifically to a high-strength support main valve for a freeze dryer. Background Technology

[0002] Freeze dryers originated from vacuum freeze-drying technology in the 1820s. After decades of ups and downs, they have made significant progress in the last two decades. Entering the 21st century, vacuum freeze-drying technology, with its unparalleled advantages over other drying methods, has become increasingly popular. Besides its widespread application in pharmaceuticals, biological products, food, blood products, and active substances, its application scale and scope continue to expand. Therefore, vacuum freeze-drying technology is destined to become one of the most important technologies of the 21st century.

[0003] A main valve is installed between the freeze-drying chamber and the condenser in the freeze dryer. The main valve is controlled by a hydraulic or pneumatic system to open and close. Its primary function is to separate the freeze-drying chamber and the condenser during the freeze-drying process. When the main valve is closed, it ensures a seal between the freeze-drying chamber shell and the condenser, allowing feeding and discharging operations to occur simultaneously with the condenser defrosting operation. When the main valve is open, the product sublimates at the optimal rate.

[0004] However, the existing freeze dryer main valve structure has problems such as high cylinder power, high maintenance equipment cost, vibration during operation, and large installation deviation of the main valve. Utility Model Content

[0005] Therefore, this utility model provides a high-strength support main valve for a freeze dryer to solve the above-mentioned problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] According to a first aspect of this utility model, a high-strength support main valve for a freeze dryer includes a housing, a main valve cylinder, a flange assembly, a first main valve plate, a second main valve plate, a main shaft, a first main valve guide rod, and a second main valve guide rod. The main valve cylinder is connected to the housing via the flange assembly. One end of the main shaft is connected to the main valve cylinder, and the other end of the main shaft is connected to the first main valve plate. One end of the first main valve guide rod is connected to the second main valve plate. The first main valve plate is slidably mounted on the first main valve guide rod. One end of the second main valve guide rod is connected to the housing, and the second main valve plate is slidably mounted on the second main valve guide rod.

[0008] Furthermore, it also includes a coupling, through which the main shaft and the main valve cylinder are connected.

[0009] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0010] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0011] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0012] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0013] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0014] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0015] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0016] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence.

[0017] Further, the flange assembly further comprises a connecting pipe, the flange assembly comprises a main valve oil cylinder flange and a cylindrical flange, one end of the connecting pipe is connected with the shell, the other end of the connecting pipe is connected with the main valve oil cylinder flange, and the main valve oil cylinder is detachably connected with the main valve oil cylinder flange; the cylindrical flange is connected to the side of the main valve oil cylinder flange away from the connecting pipe; and the telescopic rod of the main valve oil cylinder is connected with the main shaft through the cylindrical flange, the main valve oil cylinder flange and the connecting pipe in sequence. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0019] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions that the present application can be implemented. Therefore, any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0020] Figure 1 A cross-sectional view of the high-strength support main valve of the freeze dryer is provided for some embodiments of the present application.

[0021] Figure 2 A partial enlarged view of the cross-sectional view of the high-strength support main valve of the freeze dryer is provided for some embodiments of the present application.

[0022] In the figure: 1, main valve oil cylinder, 2, cylindrical flange, 3, main valve oil cylinder flange, 4, corrugated pipe, 5, coupling, 6, main shaft, 7, shaft sleeve, 8, main valve support sleeve, 9, first main valve valve plate, 10, first main valve guide rod, 11, second main valve valve plate, 12, second main valve guide rod, 13, main valve sealing flange, 14, sealing block, 15, support frame, 16, housing, 161, connecting pipe, 17, first bushing, 18, first cover plate, 19, retainer, 20, second bushing, 21, second cover plate. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described below by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] As Figure 1 and Figure 2As shown, the utility model discloses a kind of high-strength support main valve of freeze dryer of first aspect embodiment, including shell 16, main valve oil cylinder 1, flange assembly, first main valve valve plate 9, second main valve valve plate 11, main shaft 6, first main valve guide rod 10 and second main valve guide rod 12, main valve oil cylinder 1 is connected with shell 16 by flange assembly, one end of main shaft 6 is connected with main valve oil cylinder 1, the other end of main shaft 6 is connected with first main valve valve plate 9, one end of first main valve guide rod 10 is connected with second main valve valve plate 11, first main valve valve plate 9 can be slidably set on first main valve guide rod 10, one end of second main valve guide rod 12 is connected with shell 16, second main valve valve plate 11 can be slidably set on second main valve guide rod 12.

[0025] In the above embodiment, it should be noted that it also includes main valve sealing flange 13, main valve sealing flange 13 is installed on the side wall of shell 16, the end of second main valve guide rod 12 is connected with main valve sealing flange 13;The number of first main valve guide rod 10 and second main valve guide rod 12 is at least two, preferably, the number of first main valve guide rod 10 and second main valve guide rod 12 is three or four, to guarantee the stability of the movement of first main valve valve plate 9 and second main valve valve plate 11.

[0026] Main valve oil cylinder 1 is composed of cylinder and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust device;The working principle of the main valve is that main valve oil cylinder 1 drives main shaft 6 to move, drives first main valve valve plate 9 to move, drives second main valve valve plate 11 to move, finally realizes the sealing of main valve sealing flange 13. Freeze-drying box and cold trap are separated into two chambers, each chamber is in independent process, and does not interfere with each other, and is orderly carried out;When freeze-drying box and cold trap need to be connected, control main valve oil cylinder 1 to work reversely, and then the connection can be realized.

[0027] The above embodiment achieves the technical effect that: through the cooperation of first main valve valve plate 9, second main valve valve plate 11, main shaft 6, first main valve guide rod 10 and second main valve guide rod 12, the operation space of the main valve is reduced, the operation space required for the opening and closing of the main valve is saved, thereby indirectly saving the operation area and the height of the factory building required by the factory building. Through the setting of first main valve valve plate 9 and second main valve valve plate 11, the type of large valve plate plus small valve plate is realized, which can effectively reduce various faults in the operation of the equipment, reduce the power of main valve oil cylinder, save resources and reduce the cost of manual maintenance.

[0028] Optionally, as shown in Figure 1 And Figure 2 In some embodiments, it also includes coupling 5, and main shaft 6 is connected with main valve oil cylinder 1 through coupling 5.

[0029] The flange assembly comprises the main valve oil cylinder flange 3 and the cylindrical flange 2, one end of the connecting pipe 161 is connected with the shell 16, the other end of the connecting pipe 161 is connected with the main valve oil cylinder flange 3, and the main valve oil cylinder 1 is detachably connected with the main valve oil cylinder flange 3; the side of the main valve oil cylinder flange 3 away from the connecting pipe 161 is connected with the cylindrical flange 2, and the telescopic rod part of the main valve oil cylinder 1 passes through the cylindrical flange 2, the main valve oil cylinder flange 3 and the connecting pipe 161 in sequence and is connected with the main shaft 6.

[0030] In the above optional embodiment, it should be noted that the main valve oil cylinder 1 is connected with the cold trap through the cylindrical flange 2, the main valve oil cylinder 1 is connected with the hydraulic station as a whole through the bolt connection, the connection is reliable and firm, the main valve oil cylinder flange 3 is welded with the cold trap as a whole, and the main valve oil cylinder flange 3 is connected with the hydraulic station oil cylinder through the cylindrical flange 2, thereby providing a stable fulcrum for the main valve operation.

[0031] The above optional embodiment has the beneficial effect that the main valve oil cylinder flange 3 and the cylindrical flange 2 guarantee the reliability of the operation of the main valve.

[0032] Optionally, as shown in Figure 1 and Figure 2 in some embodiments, the flange assembly further comprises a bellows 4, the bellows 4 is located in the connecting pipe 161 and the bellows 4 is sleeved on the telescopic rod part of the main valve oil cylinder 1.

[0033] The above optional embodiment has the beneficial effect that the bellows 4 is provided to convert the pressure of the main valve oil cylinder 1 into displacement or force, thereby realizing the measurement of the pressure of the main valve oil cylinder 1.

[0034] Optionally, as shown in Figure 1 and Figure 2 in some embodiments, the flange assembly further comprises a main valve support sleeve 8, the main shaft 6 is connected with the inner side wall of the shell 16 through the main valve support sleeve 8.

[0035] In the above optional embodiment, it should be noted that the flange assembly further comprises a support frame 15, the support frame 15 is installed on the inner side wall of the shell 16, and the main valve support sleeve 8 and the support frame 15 are connected with each other.

[0036] The above optional embodiment has the beneficial effect that the main valve support sleeve 8 is provided to realize the reliable movement of the main shaft 6.

[0037] Optionally, as shown in Figure 1 and Figure 2 in some embodiments, the flange assembly further comprises a shaft sleeve 7, and the shaft sleeve 7 is arranged between the main shaft 6 and the main valve support sleeve 8.

[0038] In the above optional embodiment, it should be noted that a ball bearing is arranged between the shaft sleeve 7 and the main shaft 6.

[0039] The optional embodiment has the beneficial effect that the shaft sleeve 7 ensures the convenience of the movement of the main shaft 6 relative to the main valve support sleeve 8.

[0040] Optionally, as shown in Figure 1 and Figure 2 In some embodiments, a first bushing 17 and a second bushing 20 are further included, the first bushing 17 is arranged between the first main valve guide rod 10 and the first main valve valve plate 9, and the second bushing 20 is arranged between the second main valve guide rod 12 and the second main valve valve plate 11.

[0041] A first cover plate 18 and a second cover plate 21 are further included, the first cover plate 18 is detachably connected with the first main valve valve plate 9 and covers the first bushing 17, and the second cover plate 21 is detachably connected with the second main valve valve plate 11 and covers the second bushing 20.

[0042] A stop ring 19 is further included, the stop ring 19 is connected to the end of the first main valve guide rod 10 away from the second main valve valve plate 11.

[0043] In the optional embodiment, it is to be noted that a ball bearing is arranged between the first bushing 17 and the first main valve guide rod 10, and a ball bearing is arranged between the second bushing 20 and the second main valve guide rod 12.

[0044] The optional embodiment has the beneficial effect that the arrangement of the first bushing 17 and the second bushing 20 ensures the reliability of the sliding of the first main valve valve plate 9 relative to the first main valve guide rod 10 and the reliability of the sliding of the second main valve valve plate 11 relative to the second main valve guide rod 12.

[0045] Optionally, as shown in Figure 1 and Figure 2 In some embodiments, a sealing block 14 is further included, the sealing block 14 is arranged on both sides of the second main valve valve plate 11.

[0046] In the optional embodiment, it is to be noted that the sealing block 14 is a circular ring, when the main valve is closed, the sealing block 14 on one side of the second main valve valve plate 11 is sealingly connected with the main valve sealing flange 13, and the sealing block 14 on the other side of the second main valve valve plate 11 is sealingly connected with the first main valve valve plate 10.

[0047] The optional embodiment has the beneficial effect that the arrangement of the sealing block 14 ensures the sealing effect of the main valve.

[0048] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

[0049] The terms such as "upper", "lower", "left", "right", "middle" and the like cited in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model that can be implemented. The change or adjustment of the relative relationship is also considered as the scope of the utility model that can be implemented without substantial change of the technical content.

Claims

1. A high strength support main valve for a lyophilizer, characterized by, The main valve oil cylinder (1) is connected with the shell (16) through the flange assembly, one end of the main shaft (6) is connected with the main valve oil cylinder (1), the other end of the main shaft (6) is connected with the first main valve valve plate (9), one end of the first main valve guide rod (10) is connected with the second main valve valve plate (11), the first main valve valve plate (9) is slidably sleeved on the first main valve guide rod (10), one end of the second main valve guide rod (12) is connected with the shell (16), and the second main valve valve plate (11) is slidably sleeved on the second main valve guide rod (12).

2. The high strength support main valve for a lyophilizer as claimed in claim 1, characterized by, The main shaft (6) and the main valve oil cylinder (1) are connected through the shaft coupling (5).

3. The high strength support main valve for a lyophilizer as claimed in claim 1, characterized by, The flange assembly comprises a main valve oil cylinder flange (3) and a cylindrical flange (2), one end of the connecting pipe (161) is connected with the shell (16), the other end of the connecting pipe (161) is connected with the main valve oil cylinder flange (3), the main valve oil cylinder (1) is detachably connected with the main valve oil cylinder flange (3), the main valve oil cylinder flange (3) is connected with the cylindrical flange (2) away from the connecting pipe (161), and the telescopic rod part of the main valve oil cylinder (1) passes through the cylindrical flange (2), the main valve oil cylinder flange (3) and the connecting pipe (161) in sequence and is connected with the main shaft (6).

4. The high strength support main valve for a lyophilizer as defined in claim 3, wherein The flange assembly further comprises a bellows (4), which is located in the connecting pipe (161) and sleeved on the telescopic rod part of the main valve oil cylinder (1).

5. The high strength support main valve for a lyophilizer as defined in claim 1, wherein The main shaft (6) is connected with the inner side wall of the shell (16) through the main valve support sleeve (8).

6. The high strength support main valve for a lyophilizer as defined in claim 5, wherein The shaft sleeve (7) is arranged between the main shaft (6) and the main valve support sleeve (8).

7. The high strength support main valve for a lyophilizer as defined in claim 1, wherein The first bushing (17) and the second bushing (20) are arranged between the first main valve guide rod (10) and the first main valve valve plate (9) and between the second main valve guide rod (12) and the second main valve valve plate (11) respectively.

8. The high strength support main valve for a lyophilizer as defined in claim 7, wherein The first cover plate (18) and the second cover plate (21) are detachably connected with the first main valve valve plate (9) and the second main valve valve plate (11) respectively and cover the first bushing (17) and the second bushing (20) respectively.

9. The high strength support main valve for a lyophilizer as defined in claim 8, wherein, The retainer ring (19) is connected with one end of the first main valve guide rod (10) away from the second main valve valve plate (11).

10. The high strength support main valve for a lyophilizer as defined in claim 1, wherein, A sealing block (14) is also included, with the second main valve valve plate (11) having the sealing block (14) on both sides.

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