CN208632513U - Portable gas detector for the measurement of rhEGF processing environment - Google Patents
Portable gas detector for the measurement of rhEGF processing environment Download PDFInfo
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- CN208632513U CN208632513U CN201820825168.XU CN201820825168U CN208632513U CN 208632513 U CN208632513 U CN 208632513U CN 201820825168 U CN201820825168 U CN 201820825168U CN 208632513 U CN208632513 U CN 208632513U
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- cylinder
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- filter membrane
- rhegf
- measurement
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Abstract
The utility model provides the portable gas detector for the measurement of rhEGF processing environment.The technical solution is constituted connected structure with shell and cylinder, under air pump driving, air-flow enters from air inlet, enter affluent channel through mainstream channel, up to filter membrane after sieve filters out particulate matter, filter membrane plays a role in filtering to air-flow under the clamping of orifice plate and cylinder, and thallus is stranded in filter membrane bottom surface, and air-flow is discharged upwards.On the basis of shell and cylinder grafting, the conical surface mutually agrees with cone tank, looping pit and magnet ring are mutually inserted, sealing function is played to the gap of grafting using two groups of silica gel rings simultaneously, then by connecting and fixing above and below, can effectively ensure that connected structure has good leakproofness.Based on the above structure, the microorganism in gas can be effectively fixed on to filter membrane bottom surface, and filter membrane is easily replaced by connected structure, not only simplify operating procedure, and reduce device volume, using effect is good.
Description
Technical field
The utility model relates to the sampling of air and detection technique fields, and in particular to one kind is used for rhEGF processing environment
The portable gas detector of measurement.
Background technique
Recombinant human epidermal growth factor (recombinant human Epidermal Growth Factor,
RhEGF), medically there is significant wound repair, healing of wound and other effects, be widely used to cosmetics, drug at present
Equal fields.In the prior art, rhEGF relies primarily on microorganism and is produced, and principle is by rhEGF expressing gene and large intestine bar
The integration of bacterium autogene group, then cultivates recombination bacillus coli, and rhEGF is secreted as extracellular products into fermentation liquid, using
The means such as degerming, purifying, freeze-drying obtain rhEGF product.It can be seen that needing stringent asepsis ring in rhEGF production process
Border, to guarantee fermentation process and rhEGF product not by living contaminants.
Therefore, it in the large-scale production of rhEGF, needs persistently to be monitored for environmental microorganism, to react production
The cleanliness levels of environment.Different from being directed to the detection of certain predetermined substance (such as methane, formaldehyde), the microorganism in air is difficult to
Testing result is directly obtained by certain probe, but needs to obtain air sample using special sampler, then through cultivating
Amplification dyes the means such as observation to react the content of microorganisms in air, this causes relevant device to need to collect sampling, handle, inspection
The operations such as survey, therefore such equipment volume is more huge, and portability is bad；In this case, if can will sample
Sampler is only placed in position to be measured, again send sample after sampling and execute into detection device by device independently of detection device
Processing, detection, in this way without moving back and forth huge equipment entirety in environment to be measured, to improve detection device just
The convenience of the property taken and detection operation.However a Major Difficulties of this mode are to take sampler repeatedly in front and back
Identical operating condition is kept in sample, to guarantee to be comparable between the multiple data in front and back；Further, since test object
It is the microorganism in air, therefore how acquired air sample under the premise of guaranteeing sealing is smoothly transferred to detector,
It is also one of problem relatively difficult to achieve at present.
Summary of the invention
The utility model is intended to the technological deficiency for the prior art, provides a kind of for the measurement of rhEGF processing environment
Portable gas detector, to solve the air microbe detection device of the prior art due to moulds such as its collection sampling, processing, detections
Block, thus the technical problem that volume is more huge.
Another technical problem to be solved in the utility model is the air sampling module for detecting microorganism, it is difficult to be guaranteed
The stable uniform of multi-pass operation condition.
Another technical problem to be solved in the utility model is the air sampling module for detecting microorganism, samples taken
It is not easy to be transferred to detection device.
To realize the above technical purpose, the utility model uses following technical scheme:
For the portable gas detector of rhEGF processing environment measurement, including shell, air pump, orifice plate, the conical surface, annular
Hole, pedestal, cylinder, cone tank, magnet ring, lower buckle, upper buckle, spring, the first silica gel ring, the second silica gel ring, affluent channel,
Mainstream channel, bottom plate, air inlet, sieve, filter membrane, wherein the inside of shell has a cylindrical cavity, and the upper end of shell has
Upper port, the lower end of shell have lower port, and cylinder is located at the lower section of shell, the shape matching of cylinder and the cylindrical cavity
It closes, air pump and orifice plate are located in the cylindrical cavity, and orifice plate is located at the lower section of air pump, and the bottom end of shell has the conical surface, in shell
There is looping pit, the lower end of the looping pit is located at the conical surface in the side wall of body；Cylinder is fixedly connected on the base, on pedestal also
It is connected with cone tank, the cone tank is located at the periphery of cylinder, and cone tank and the position of the conical surface, shape cooperate, in taper
Magnet ring is connected on slot, the magnet ring and the position of looping pit, shape cooperate, it is also connected with lower buckle on pedestal,
On snap through spring and be connected on the side wall of shell, upper buckle cooperates with the position of lower buckle, specification, in the side of cylinder
It is socketed with the first silica gel ring on wall, is socketed with the second silica gel ring between cone tank and cylinder；It is offered in cylinder several
Affluent channel, the upper end of several affluent channels extend respectively to the outside of cylinder, the lower end of several affluent channels respectively be located at
The mainstream channel of base bottom is connected to, and pedestal is fixedly connected on bottom plate, and air inlet is located in bottom plate, and the one of the mainstream channel
End is connected to air inlet, is respectively arranged with sieve in several affluent channels, is equipped with filter membrane on the top of cylinder.
Preferably, the aperture of the filter membrane is 0.22 μm.
Preferably, the upper port of each affluent channel is respectively positioned on the underface of one of hole of orifice plate.
Preferably, being attached with pellosil on magnet ring.
Preferably, lower buckle and upper buckle respectively have 4, described 4 upper buckles are located on the same cross section of shell.
Preferably, air pump and orifice plate are respectively fixedly connected on the side wall of cylindrical cavity, the upper end open area of shell
It is the 1/6 of its lower end open area.
In above technical scheme, shell and cylinder constitute connected structure, and the components such as air pump, airflow channel, filter membrane are sealed
It closes in wherein.Under the driving effect of air pump, air-flow enters from the air inlet on bottom plate, enters affluent channel through mainstream channel,
Particulate contaminant is filtered out by sieve in affluent channel, up to filter membrane, filter membrane is right under the clamping action of orifice plate and cylinder
Upward air-flow plays a role in filtering, and thallus is stranded in filter membrane bottom surface, and air-flow is discharged upwards.In shell and cylinder grafting
On the basis of, the conical surface mutually agrees with cone tank, looping pit and magnet ring are mutually inserted, while utilizing the first silica gel ring and the second silicon
Cushion rubber plays sealing function to the gap of grafting, then connecting and fixing by lower buckle and upper buckle, to can effectively ensure that slotting
Binding structure has good leakproofness.Based on the above structure, the microorganism in gas can be effectively fixed on filter by the utility model
Film bottom surface, and filter membrane is taken out conveniently or replaced by connected structure, operating procedure is not only simplified, and reduce apparatus body
Product, using effect are good.
In above technical scheme, sieve is located at the upstream of filter membrane in airflow channel, can substantially avoid particulate matter arrival
Filter membrane, to avoid the problem that particulate matter blocks filter membrane.After the completion of grafting, it is upper buckle and it is lower connect and fix, work as needs
When opening shell, pressing spring is first descended, separates buckle with lower buckle, connects and fixes state to cancel.In optimization technique side
In case, limiting filter sizes as 0.22 μm is to guarantee to have complete filtration result to thallus；Adhere to silicon on magnet ring
Glue film then facilitates to play further sealing effect in the splicing position of magnet ring and looping pit.
When the utility model is used, device to be integrally put into position to be measured, device grafting is consolidated after being laid with new filter membrane
It sets, then booster air pump for a period of time, then closes air pump, and device is removed environment to be measured, is opened in aseptic operating platform
Device takes out filter membrane, its bottom surface is laid in downward in preprepared complete medium flat board, culture a period of time, into
Row bacterium colony counts, to obtain the Air tonometry of position to be measured.Based on the utility model, if keep air pump power and
The fixation in sampling time can guarantee that repeatedly sampling condition is consistent for front and back, thus have good repeatability；In addition, this reality
It uses novel not using gas sample as direct acquisition target, but is first consolidated the microorganism in gas sample by filter membrane
It is fixed, then filter membrane integrally will be handled and be detected, thus can easily realize the transfer of sample, simplify operating procedure.Separately
Outside, the grafting mode of the utility model is highly convenient for the taking-up and replacement of filter membrane, and device is integrally also convenient for being put into before use going out
The sterilizing of bacterium device, therefore operating efficiency with higher；Moreover, keeping device leakproofness after grafting good by stringent structure of agreeing with
It is good, it ensure that the accuracy of detection.
Detailed description of the invention
When Fig. 1 is shell and cylinder non-grafting, the vertical section structure schematic diagram of the utility model entirety；
Fig. 2 is the vertical section structure schematic diagram of the utility model entirety after shell and cylinder grafting；
When Fig. 3 is shell and cylinder non-grafting, the schematic perspective view of the utility model entirety；
Fig. 4 is the partial structural diagram of the utility model aperture plate；
In figure:
1, shell 2, air pump 3, orifice plate 4, the conical surface
5, looping pit 6, pedestal 7, cylinder 8, cone tank
9, magnet ring 10, lower buckle 11, upper buckle 12, spring
13, the first silica gel ring 14, the second silica gel ring 15, affluent channel 16, mainstream channel
17, bottom plate 18, air inlet 19, sieve 20, filter membrane.
Specific embodiment
Specific embodiment of the present utility model will be described in detail below.In order to avoid excessive unnecessary thin
Section will not be described in detail to belonging to well known structure or function in the examples below.Used in following embodiment
Approximating language can be used for quantitative expression, show to allow quantity to have certain variation in the case where not changing basic function.
In addition to being defined, technical and scientific term used in following embodiment has general with the utility model one of ordinary skill in the art
All over the identical meanings understood.
Embodiment 1
For the portable gas detector of rhEGF processing environment measurement, as shown in figures 1-4, including shell 1, air pump
2, orifice plate 3, the conical surface 4, looping pit 5, pedestal 6, cylinder 7, cone tank 8, magnet ring 9, lower buckle 10, upper buckle 11, spring 12, the
One silica gel ring 13, the second silica gel ring 14, affluent channel 15, mainstream channel 16, bottom plate 17, air inlet 18, sieve 19, filter membrane 20,
Wherein the inside of shell 1 has a cylindrical cavity, and the upper end of shell 1 has upper port, and the lower end of shell 1 has lower port,
Cylinder 7 is located at the lower section of shell 1, and cylinder 7 is matched with the shape of the cylindrical cavity, and air pump 2 and orifice plate 3 are positioned at described
In cylindrical cavity, orifice plate 3 is located at the lower section of air pump 2, and the bottom end of shell 1 has the conical surface 4, has ring in the side wall of shell 1
The lower end in shape hole 5, the looping pit 5 is located at the conical surface 4；Cylinder 7 is fixedly connected on pedestal 6, is also connected with taper on pedestal 6
Slot 8, the cone tank 8 are located at the periphery of cylinder 7, and cone tank 8 and the position of the conical surface 4, shape cooperate, on cone tank 8
It is connected with magnet ring 9, the magnet ring 9 cooperates with the position of looping pit 5, shape, is also connected with lower buckle on pedestal 6
10, upper buckle 11 is connected on the side wall of shell 1 by spring 12, upper buckle 11 and the lower position for buckling 10, specification phase interworking
It closes, the first silica gel ring 13 is socketed on the side wall of cylinder 7, be socketed with the second silica gel ring between cone tank 8 and cylinder 7
14；Several affluent channels 15 are offered in cylinder 7, the upper end of several affluent channels 15 extends respectively to the outside of cylinder 7, if
The lower end of Heavenly Stems and Earthly Branches circulation road 15 is connected to the mainstream channel 16 for being located at 6 bottom of pedestal respectively, and pedestal 6 is fixedly connected on bottom plate 17
On, air inlet 18 is located in bottom plate 17, and the one end in the mainstream channel 16 is connected to air inlet 18, in several affluent channels 15
It is respectively arranged with sieve 19, is equipped with filter membrane 20 on the top of cylinder 7.
The working principle of the device is as follows: shell 1 and cylinder 7 constitute connected structure, by air pump 2, airflow channel, filter membrane 20
Equal components are closed in wherein.Under the driving effect of air pump 2, air-flow enters from the air inlet 18 on bottom plate 17, through mainstream channel
16 enter affluent channel 15, filter out particulate contaminant by sieve 19 in affluent channel 15, up to filter membrane 20, filter membrane exists
It plays a role in filtering under the clamping action of orifice plate 3 and cylinder 7 to upward air-flow, thallus is stranded in 20 bottom surface of filter membrane, air-flow
It is discharged upwards.In shell 1 and on the basis of 7 grafting of cylinder, the conical surface 4 and cone tank 8 mutually agree with, looping pit 5 and magnet ring
9 are mutually inserted, while playing sealing function to the gap of grafting using the first silica gel ring 13 and the second silica gel ring 14, then rely on down
Buckle 10 and upper buckle 11 connect and fix, to can effectively ensure that connected structure has good leakproofness.Based on the above knot
Structure, the microorganism in gas can be effectively fixed on 20 bottom surface of filter membrane by the utility model, and is taken out conveniently by connected structure
Or replacement filter membrane 20, operating procedure is not only simplified, and reduce device volume, using effect is good.
In above technical scheme, sieve 19 is located at the upstream of filter membrane 20 in airflow channel, can substantially avoid particulate matter
Filter membrane 20 is reached, to avoid the problem that particulate matter blocks filter membrane 20.After the completion of grafting, 10 clamping of upper buckle 11 and lower buckle
It is fixed, when needing to open shell 1, pressing spring 12 is first descended, buckle 11 is separated with lower buckle 10, is connected and fixed to cancel
State.
Embodiment 2
For the portable gas detector of rhEGF processing environment measurement, as shown in figures 1-4, including shell 1, air pump
2, orifice plate 3, the conical surface 4, looping pit 5, pedestal 6, cylinder 7, cone tank 8, magnet ring 9, lower buckle 10, upper buckle 11, spring 12, the
One silica gel ring 13, the second silica gel ring 14, affluent channel 15, mainstream channel 16, bottom plate 17, air inlet 18, sieve 19, filter membrane 20,
Wherein the inside of shell 1 has a cylindrical cavity, and the upper end of shell 1 has upper port, and the lower end of shell 1 has lower port,
Cylinder 7 is located at the lower section of shell 1, and cylinder 7 is matched with the shape of the cylindrical cavity, and air pump 2 and orifice plate 3 are positioned at described
In cylindrical cavity, orifice plate 3 is located at the lower section of air pump 2, and the bottom end of shell 1 has the conical surface 4, has ring in the side wall of shell 1
The lower end in shape hole 5, the looping pit 5 is located at the conical surface 4；Cylinder 7 is fixedly connected on pedestal 6, is also connected with taper on pedestal 6
Slot 8, the cone tank 8 are located at the periphery of cylinder 7, and cone tank 8 and the position of the conical surface 4, shape cooperate, on cone tank 8
It is connected with magnet ring 9, the magnet ring 9 cooperates with the position of looping pit 5, shape, is also connected with lower buckle on pedestal 6
10, upper buckle 11 is connected on the side wall of shell 1 by spring 12, upper buckle 11 and the lower position for buckling 10, specification phase interworking
It closes, the first silica gel ring 13 is socketed on the side wall of cylinder 7, be socketed with the second silica gel ring between cone tank 8 and cylinder 7
14；Several affluent channels 15 are offered in cylinder 7, the upper end of several affluent channels 15 extends respectively to the outside of cylinder 7, if
The lower end of Heavenly Stems and Earthly Branches circulation road 15 is connected to the mainstream channel 16 for being located at 6 bottom of pedestal respectively, and pedestal 6 is fixedly connected on bottom plate 17
On, air inlet 18 is located in bottom plate 17, and the one end in the mainstream channel 16 is connected to air inlet 18, in several affluent channels 15
It is respectively arranged with sieve 19, is equipped with filter membrane 20 on the top of cylinder 7.Wherein, the aperture of the filter membrane 20 is 0.22 μm；Each
The upper port of affluent channel 15 is respectively positioned on the underface of one of hole of orifice plate 3；Pellosil is attached on magnet ring 9；Under
Buckle 10 and upper buckle 11 respectively have 4, and described 4 upper buckles 11 are located on the same cross section of shell 1；Air pump 2 and orifice plate
3 are respectively fixedly connected on the side wall of cylindrical cavity, and the upper end open area of shell 1 is the 1/6 of its lower end open area.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment is not intended to limit the utility model.All any modifications made in the application range of the utility model are equally replaced
It changes and improves, should be included within the scope of protection of this utility model.
Claims (6)
1. the portable gas detector for the measurement of rhEGF processing environment, it is characterised in that including shell (1), air pump (2),
Orifice plate (3), the conical surface (4), looping pit (5), pedestal (6), cylinder (7), cone tank (8), magnet ring (9), lower buckle (10), upper card
It detains (11), spring (12), the first silica gel ring (13), the second silica gel ring (14), affluent channel (15), mainstream channel (16), bottom plate
(17), air inlet (18), sieve (19), filter membrane (20), wherein the inside of shell (1) has a cylindrical cavity, shell (1)
Upper end has a upper port, and the lower end of shell (1) has a lower port, and cylinder (7) is located at the lower section of shell (1), cylinder (7) with it is described
The shape of cylindrical cavity matches, and air pump (2) and orifice plate (3) are located in the cylindrical cavity, and orifice plate (3) is located at air pump
(2) bottom end of lower section, shell (1) has the conical surface (4), has looping pit (5) in the side wall of shell (1), the looping pit
(5) lower end is located at the conical surface (4)；Cylinder (7) is fixedly connected on pedestal (6), and cone tank (8) are also connected on pedestal (6),
The cone tank (8) is located at the periphery of cylinder (7), and cone tank (8) and the position of the conical surface (4), shape cooperate, in cone tank
(8) it is connected on magnet ring (9), the position of the magnet ring (9) and looping pit (5), shape cooperate, on pedestal (6) also
It is connected with lower buckle (10), upper buckle (11) is connected on the side wall of shell (1) by spring (12), upper buckle (11) and lower card
Detain the position of (10), specification cooperates, the first silica gel ring (13) are socketed on the side wall of cylinder (7), cone tank (8) with
The second silica gel ring (14) are socketed between cylinder (7)；Several affluent channels (15), several tributaries are offered in cylinder (7)
The upper end in channel (15) extends respectively to the outside of cylinder (7), and the lower end of several affluent channels (15) is respectively and positioned at pedestal (6)
The mainstream channel (16) of bottom is connected to, and pedestal (6) is fixedly connected on bottom plate (17), and air inlet (18) is located in bottom plate (17),
One end of the mainstream channel (16) is connected to air inlet (18), is respectively arranged with sieve in several affluent channels (15)
(19), filter membrane (20) are equipped on the top of cylinder (7).
2. the portable gas detector according to claim 1 for the measurement of rhEGF processing environment, it is characterised in that institute
The aperture for stating filter membrane (20) is 0.22 μm.
3. the portable gas detector according to claim 1 for the measurement of rhEGF processing environment, it is characterised in that every
The upper port of a affluent channel (15) is respectively positioned on the underface of one of hole of orifice plate (3).
4. the portable gas detector according to claim 1 for the measurement of rhEGF processing environment, it is characterised in that magnetic
Iron hoop is attached with pellosil on (9).
5. the portable gas detector according to claim 1 for the measurement of rhEGF processing environment, it is characterised in that under
Buckle (10) and upper buckle (11) respectively have 4, and described 4 upper buckles (11) are located on the same cross section of shell (1).
6. the portable gas detector according to claim 1 for the measurement of rhEGF processing environment, it is characterised in that gas
Pump (2) and orifice plate (3) are respectively fixedly connected on the side wall of cylindrical cavity, and the upper end open area of shell (1) is its lower port
The 1/6 of area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825168.XU CN208632513U (en) | 2018-05-30 | 2018-05-30 | Portable gas detector for the measurement of rhEGF processing environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825168.XU CN208632513U (en) | 2018-05-30 | 2018-05-30 | Portable gas detector for the measurement of rhEGF processing environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208632513U true CN208632513U (en) | 2019-03-22 |
Family
ID=65733733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820825168.XU Active CN208632513U (en) | 2018-05-30 | 2018-05-30 | Portable gas detector for the measurement of rhEGF processing environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208632513U (en) |
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2018
- 2018-05-30 CN CN201820825168.XU patent/CN208632513U/en active Active
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