CN105333143A - Sealing ring of freeze-drying box for freeze dryer - Google Patents
Sealing ring of freeze-drying box for freeze dryer Download PDFInfo
- Publication number
- CN105333143A CN105333143A CN201410397900.4A CN201410397900A CN105333143A CN 105333143 A CN105333143 A CN 105333143A CN 201410397900 A CN201410397900 A CN 201410397900A CN 105333143 A CN105333143 A CN 105333143A
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- box
- freeze
- door frame
- chamber door
- door
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Abstract
The invention relates to a sealing ring of a freeze-drying box for a freeze dryer. The freeze-drying box comprises a box body and a box door capable of being opened and closed relative to a box body door frame of the box body. A sealing groove is formed in the peripheral edge of either the box body door frame or the box door. The sealing ring is characterized in that the section of the sealing groove is in a concave T shape; the sealing ring comprises a lower part and an upper part, the lower part is matched with the T-shaped sealing groove under the free state, and a protrusion higher than the sealing groove is formed on the upper part; after the box body door frame is closed through the box door, the protrusion on the upper part is subjected to extrusion force and extends outwards, the sealing ring with the T-shaped section is formed and completely embedded in the sealing groove with the T-shaped section, and therefore gap space between the box door and the box body door frame can be completely filled. After the box door is closed, the gap space between the box door and the box body door frame can be filled through the sealing ring, the risk of residual water can be effectively eliminated, and therefore the requirement of GMP for sterility can be guaranteed.
Description
Technical field
The present invention relates to a kind of seal arrangement of pharmacy freeze dryer, relate to a kind of freeze dryer case door seal ring specifically.
Background technique
Pharmacy freeze dryer, after end-of-job, in order to avoid cross pollution, must carry out incumbent firms (CIP) and sterilizing in place (SIP), to ensure aseptic requirement to freeze-drying tank.Incumbent firms (CIP) afterwards rinse water must be discharged outside freeze-drying tank, and freeze-drying tank planted agent avoids the existence of residuary waters.As shown in Figure 1a, the seal ring of the chamber door 1 of the freeze-drying tank that current freeze dryer producer adopts is generally adopt O-ring seals 3a, and the structure of seal groove 2a on door frame of box 2 adopts square groove, like this after chamber door 1 is closed, as shown in Figure 1 b, due to the pressure that extruding produces, make O seal ring in square groove, be squeezed into elliptical seal ring 3b; Simultaneously because chamber door 1 and door frame of box 2 are all formed by the manufacturing of thicker stainless steel, can not fit completely, so a gap 5 can be formed between chamber door 1 and door frame of box 2, when incumbent firms (CIP) terminates rear draining, in this gap, just may have residuary waters 6 exist, thus produce the risk polluted and retain.Therefore need to develop a kind of freeze-drying tank chamber door seal ring eliminating gap between chamber door and door frame of box, effectively to eliminate the risk of residuary waters, and then ensure that GMP (GMP) is to aseptic requirement.
Summary of the invention
The object of this invention is to provide a kind of seal ring of the freeze-drying tank for freeze dryer, the gap space between chamber door and door frame of box can be filled up after chamber door is closed, effectively eliminate the risk of residuary waters, to ensure that GMP is to aseptic requirement.
The seal ring of the freeze-drying tank for freeze dryer of the present invention, wherein freeze-drying tank comprise casing with can the chamber door of door frame of box opening and closing of relative described casing, seal groove is formed at the periphery of one of described door frame of box and described chamber door, the cross section of wherein said seal groove is in recessed T-shaped, described seal ring comprises bottom and top, described bottom coordinates with described T-shaped seal groove when free state, described top is formed with the projection exceeded outside seal groove, described chamber door close close described door frame of box after described top projection the power of being squeezed effect and outwards extend, to form the seal ring with T section, and be embedded in completely in the T-shaped seal groove in described cross section and fill up gap space between described chamber door and described door frame of box completely.
Described seal groove is formed on described door frame of box.
Described seal groove is formed on described chamber door.
Seal ring of the present invention is after chamber door closes upper box doorframe, outwards extend in its top under the effect of the pressure produced that is squeezed, fill up gap space between chamber door and door frame of box, chamber door and door frame of box are fitted tightly, with the possibility effectively avoiding gap between chamber door and door frame of box to there is residuary waters, thus guarantee that GMP is to aseptic requirement.
Accompanying drawing explanation
Fig. 1 a and Fig. 1 b is the O-ring seals service condition schematic diagram in the freeze-drying tank of freeze dryer adopting prior art;
Fig. 2 a and Fig. 2 b is the schematic diagram of the seal ring service condition of the freeze-drying tank for freeze dryer of one embodiment of the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.First it should be noted that, the present invention is not limited to following embodiment, and the spirit that those skilled in the art should embody from following mode of execution is to understand the present invention, and each technical term can do the most wide in range understanding based on Spirit Essence of the present invention.Reference character identical in the accompanying drawings represents identical part.
The seal ring for freeze dryer freeze-drying tank of one embodiment of the invention, wherein freeze-drying tank comprises casing and can the chamber door 1 of door frame of box 2 opening and closing of opposite case, at one of door frame of box 2 and chamber door, periphery as the door frame of box 2 at the present embodiment is formed with seal groove 2a ', wherein the cross section of seal groove 2a ' is in recessed T-shaped, seal ring 4a comprises bottom 4a ' and top 4a "; bottom 4a ' coordinates with T-shaped seal groove 2a ' when free state; top is formed and exceeds seal groove 2a ' protruding 4a outward ", as shown in Fig. 2 a, 2b.After chamber door 1 closes upper box doorframe 2, the protruding 4a on top " the power of being squeezed effect and outwards extend; to form the seal ring 4b with T section, and be embedded in completely in the T-shaped seal groove 2a ' in cross section and fill up space, gap 5 between chamber door 1 and described door frame of box 2 completely.T-shaped seal groove 2a ' is arranged on door frame of box 2 by embodiment shown in figure, is appreciated that obviously, and the T-shaped seal groove 2a ' in cross section also can be formed on chamber door 1.
Seal ring of the present invention is after chamber door 1 closes upper box doorframe 2, its top 4a " outwards extend under the effect of the pressure produced that is squeezed; fill up the space in gap 5 between chamber door 1 and door frame of box 2; chamber door 1 and door frame of box 2 are fitted tightly; gap between chamber door 1 and door frame of box 2 effectively can be avoided like this to there is the possibility of residuary waters, thus guarantee that GMP is to aseptic requirement.
It is upper outside except being used in type of production freeze dryer to be appreciated that seal ring of the present invention equally, and can also be used in that the chamber door of other equipment and casing junction need to reduce can the place of water
Should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (3)
1. the seal ring for the freeze-drying tank of freeze dryer, wherein freeze-drying tank comprise casing with can the chamber door of door frame of box opening and closing of relative described casing, seal groove is formed at the periphery of one of described door frame of box and described chamber door, it is characterized in that, the cross section of described seal groove is in recessed T-shaped, described seal ring comprises bottom and top, described bottom coordinates with described T-shaped seal groove when free state, described top is formed with the projection exceeded outside seal groove, described chamber door close close described door frame of box after described top projection the power of being squeezed effect and outwards extend, to form the seal ring with T section, and be embedded in completely in the T-shaped seal groove in described cross section and fill up gap space between described chamber door and described door frame of box completely.
2. the seal ring of the freeze-drying tank for freeze dryer according to claim 1, is characterized in that, described seal groove is formed on described door frame of box.
3. the seal ring of the freeze-drying tank for freeze dryer according to claim 1, is characterized in that, described seal groove is formed on described chamber door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397900.4A CN105333143A (en) | 2014-08-13 | 2014-08-13 | Sealing ring of freeze-drying box for freeze dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397900.4A CN105333143A (en) | 2014-08-13 | 2014-08-13 | Sealing ring of freeze-drying box for freeze dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105333143A true CN105333143A (en) | 2016-02-17 |
Family
ID=55283843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410397900.4A Pending CN105333143A (en) | 2014-08-13 | 2014-08-13 | Sealing ring of freeze-drying box for freeze dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105333143A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478048Y (en) * | 2001-04-20 | 2002-02-20 | 上海远东制药机械总厂 | Automatic locking device of freezer dryer |
| GB2424263A (en) * | 2005-03-15 | 2006-09-20 | Boc Group Plc | Chamber door seal with a movable second gasket for sealing during steam sterilisation |
| CN201434069Y (en) * | 2009-08-25 | 2010-03-31 | 哈尔滨玻璃钢研究院 | Combined-type sealing ring |
| CN201476521U (en) * | 2009-09-23 | 2010-05-19 | 上海共和真空技术有限公司 | Hydraulic automatic locking device used for freezedryer gate |
| CN201747178U (en) * | 2010-08-31 | 2011-02-16 | 伊马莱富（北京）制药系统有限公司 | Chamber door hinge preloading device of freeze-dryer |
| CN201835705U (en) * | 2010-11-04 | 2011-05-18 | 常熟市上海飞奥压力容器制造有限公司 | Sealing door structure of vacuum freeze-drying tank |
| CN102721269A (en) * | 2012-07-11 | 2012-10-10 | 海南卫康制药(潜山)有限公司 | Liquid nitrogen refrigeration micro-wave heating vacuum drier |
| CN204004389U (en) * | 2014-08-13 | 2014-12-10 | 上海共和真空技术有限公司 | The seal ring that is used for the freeze-drying tank of freeze dryer |
-
2014
- 2014-08-13 CN CN201410397900.4A patent/CN105333143A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478048Y (en) * | 2001-04-20 | 2002-02-20 | 上海远东制药机械总厂 | Automatic locking device of freezer dryer |
| GB2424263A (en) * | 2005-03-15 | 2006-09-20 | Boc Group Plc | Chamber door seal with a movable second gasket for sealing during steam sterilisation |
| CN201434069Y (en) * | 2009-08-25 | 2010-03-31 | 哈尔滨玻璃钢研究院 | Combined-type sealing ring |
| CN201476521U (en) * | 2009-09-23 | 2010-05-19 | 上海共和真空技术有限公司 | Hydraulic automatic locking device used for freezedryer gate |
| CN201747178U (en) * | 2010-08-31 | 2011-02-16 | 伊马莱富（北京）制药系统有限公司 | Chamber door hinge preloading device of freeze-dryer |
| CN201835705U (en) * | 2010-11-04 | 2011-05-18 | 常熟市上海飞奥压力容器制造有限公司 | Sealing door structure of vacuum freeze-drying tank |
| CN102721269A (en) * | 2012-07-11 | 2012-10-10 | 海南卫康制药(潜山)有限公司 | Liquid nitrogen refrigeration micro-wave heating vacuum drier |
| CN204004389U (en) * | 2014-08-13 | 2014-12-10 | 上海共和真空技术有限公司 | The seal ring that is used for the freeze-drying tank of freeze dryer |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |