CN206543523U - The numerous production system of expansion of cleaning system and liquid strain - Google Patents
The numerous production system of expansion of cleaning system and liquid strain Download PDFInfo
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- CN206543523U CN206543523U CN201720217073.5U CN201720217073U CN206543523U CN 206543523 U CN206543523 U CN 206543523U CN 201720217073 U CN201720217073 U CN 201720217073U CN 206543523 U CN206543523 U CN 206543523U
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- cleaning system
- oxidation reactor
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Abstract
The utility model provides a kind of numerous production system of the expansion of cleaning system and liquid strain, is related to the numerous production system technical field of expansion of strain.The cleaning system that the utility model is provided, including gas-liquid separator and purifier, the purifier include filter, absorbent charcoal adsorber, photocatalytic oxidation reactor and air exhausting device；The utility model additionally provides the numerous production system of expansion of liquid strain, including first class seed pot, secondary seed tank and the cleaning system for purifying fermentation waste gas in seeding tank.The numerous production system of expansion for the liquid strain that the utility model is provided, by using above-mentioned cleaning system, fermentation waste gas in first class seed pot and secondary seed tank is effectively purified, the liquid metabolite after gas-liquid separator is transferred to fermentation tank and recycled, and reaches the purpose economized on resources；Gas after gas-liquid separator is then after purified device stepwise disposal, you can directly discharge, environment will not be polluted.
Description
Technical field
The utility model is related to the numerous production system technical field of expansion of strain, more particularly, to a kind of cleaning system and liquid
The numerous production system of expansion of strain.
Background technology
In the numerous production process of expansion of liquid strain, fermentation waste gas can be usually produced.Fermentation waste gas comparison of ingredients is complicated, generally
It is to include substantial amounts of carbon dioxide, vapor, foul smell and Partial fermentation metabolite etc., or even has special bad smell production
It is raw.If the waste gas timely exclusion from numerous system is expanded produced can not will be metabolized, the transmission of oxygen in tank may be influenceed, so that
Adversely affected to expanding numerous process.If fermentation waste gas is directly discharged in air, the pollution of environment can be caused.Meanwhile,
Partly the metabolite with recovery value can not be recycled effectively in waste gas, so as to cause the further of resource
Waste, therefore need to carry out purified treatment and recycling to fermentation waste gas.
Existing waste gas cleaning system structure is relatively simple, is often made with single cleaning equipment and is handled, processing
Effect is poor, and the gas after processing does not often reach the standard directly discharged, however it remains the problem of environmental pollution.
In consideration of it, being necessary to be studied to provide a kind of scheme.
Utility model content
The purpose of this utility model is to provide the expansion of a kind of cleaning system and liquid strain numerous production system, existing to improve
Have not thorough to fermentation waste gas purified treatment in technology, directly discharge easily causes environmental pollution, and part metabolite can not
The technical problem of effective recycling.
One kind that the utility model is provided is provided with cleaning system, including gas-liquid separator and purifier；
The gas-liquid separator is provided with air inlet, exhaust outlet and leakage fluid dram, and pending gas is entered by the air inlet
To inside the gas-liquid separator, the exhaust outlet of the gas-liquid separator is connected with the purifier, the gas-liquid separator
Leakage fluid dram be connected with retracting device；
The purifier includes filter, absorbent charcoal adsorber and photocatalytic oxidation reactor, the filter, work
Property charcoal adsorbent equipment and photocatalytic oxidation reactor are sequentially connected, the exhaust outlet phase of the filter and the gas-liquid separator
Even；
The purifier also include air exhausting device, the air exhausting device be connected to the photocatalytic oxidation reactor it
Afterwards.
Further, the gas-liquid separator is vortex gas-liquid separator, adsorption type gas-liquid separator and baffle-type gas
Any one in liquid/gas separator.
Further, the absorbent charcoal adsorber is provided with multiple activated carbon adsorption units.
Further, the photocatalytic oxidation reactor is fluidized bed photo catalysis oxidation reactor, folded plate type photocatalytic-oxidation
Change any one in reactor and honeycomb photocatalytic oxidation reactor.
Further, it is additionally provided with aiutage after the air exhausting device.
The utility model additionally provides a kind of numerous production system of expansion of the liquid strain using above-mentioned cleaning system, including one
Level seeding tank, secondary seed tank and the above-mentioned cleaning system for purifying fermentation waste gas in seeding tank, the cleaning system difference
It is connected with the first class seed pot, the secondary seed tank；
Gas skirt, the first class seed pot and secondary seed are equipped with the first class seed pot and the secondary seed tank
Air inlet of the gas skirt of tank respectively with the gas-liquid separator is connected, and the exhaust outlet of the gas-liquid separator is filled with the purification
Put connected, the leakage fluid dram of the gas-liquid separator is connected with fermentation tank.
Further, the purifier includes filter, absorbent charcoal adsorber and photocatalytic oxidation reactor, described
Filter, absorbent charcoal adsorber and photocatalytic oxidation reactor are sequentially connected, the filter and the gas-liquid separator
Exhaust outlet is connected；
The purifier also includes being additionally provided with aiutage after air exhausting device, the air exhausting device.
Further, the TEMP for detection temperature is equipped with the first class seed pot and the secondary seed tank
Device and the pressure sensor for detecting pressure.
Further, the first class seed pot passes through pipeline connection with the secondary seed tank.
The cleaning system that the utility model is provided, fermentation waste gas is passed into gas-liquid separator and separated, is separated
To liquid recycled, realize the purpose economized on resources；Meanwhile, isolated gas passes through by filter, activity
Gas after the purifier stepwise disposal that charcoal adsorbent equipment and photocatalytic oxidation reactor are constituted, purified treatment meets environmental protection will
Ask, can directly discharge, it is not thorough to improve fermentation waste gas purified treatment present in prior art, so as to be polluted to environment
Technical problem.
The numerous production system of expansion for the liquid strain that the utility model is provided, by using above-mentioned cleaning system, to one-level kind
Fermentation waste gas in sub- tank and secondary seed tank is effectively purified, and the liquid metabolite after gas-liquid separator is transferred to fermentation
Tank is recycled, and reaches the purpose economized on resources；Gas after gas-liquid separator is then after purified device stepwise disposal,
Can directly discharge, environment will not be polluted, meanwhile, also for liquid strain the numerous production of expansion be smoothed out provide base
Plinth.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 be embodiment 1 in cleaning system structural representation；
Fig. 2 be embodiment 1 in cleaning system general flow chart；
Fig. 3 is the structural representation of the numerous production system of expansion of the liquid strain in embodiment 2；
Fig. 4 is the general flow chart of the numerous production system of expansion of the liquid strain in embodiment 2.
Icon：10- gas-liquid separators；11- air inlets；12- exhaust outlets；13- leakage fluid drams；20- filters；30- activated carbons
Adsorbent equipment；40- photocatalytic oxidation reactors；50- air exhausting devices；60- first class seed pots；61- gas skirts；62- pipelines；70-
Secondary seed tank；80- fluid reservoirs；90- fermentation tanks.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " on ", " interior ", " outer ", the orientation of the instruction such as " rear "
Or position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplification is retouched
State, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment 1
As shown in figure 1, a kind of cleaning system that the present embodiment 1 is provided, including gas-liquid separator 10 and purifier, gas-liquid
Separator 10 is connected with purifier.
Gas-liquid separator 10 realizes that lime set is reclaimed or gas phase purifying mainly for the treatment of the gas containing a small amount of lime set,
It is the equipment separated gas and liquid in industrial system containing liquid, the advantage of small volume high with separative efficiency.Gas-liquid separator
10 be usually the internals using silk screen foam removal or hydraulic barrier etc, according to baffling separation and Gravity Separation principle, by gas
The liquid carried secretly in body further condenses, discharged, to reach the effect for removing liquid.
The species of gas-liquid separator 10 has a variety of, can be vortex gas-liquid separator, adsorption type gas-liquid separator and baffle plate
Any one in formula gas-liquid separator.
It should be noted that selecting baffle-type gas-liquid separator in the present embodiment.The top of gas-liquid separator 10 be provided with into
Gas port 11 and exhaust outlet 12, pending waste gas are entered inside gas-liquid separator 10 by air inlet 11, are separated into gas
And liquid.In order to purify from the isolated gas of gas-liquid separator 10, purifier is set after gas-liquid separator 10.Gas
The exhaust outlet 12 of liquid/gas separator 10 is connected with purifier.The bottom of gas-liquid separator 10 is provided with leakage fluid dram 13, leakage fluid dram 13
It is connected with retracting device, isolated liquid goes to other retracting devices from leakage fluid dram 13, is recycled.
Purifier includes filter 20, absorbent charcoal adsorber 30 and photocatalytic oxidation reactor 40, filter 20, work
Property charcoal adsorbent equipment 30 and photocatalytic oxidation reactor 40 are sequentially connected, the phase of exhaust outlet 12 of filter 20 and gas-liquid separator 10
Even.
Specifically, filter 20 is the filter of the preliminary treatment carried out to waste gas.Core component is screen pack, mistake
The material and the number of plies of filter screen, which are set, then to be required and sets according to the composition of pending waste gas and purification.
Absorbent charcoal adsorber 30 is provided with after filter 20.So-called absorbent charcoal adsorber 30 is based on activated carbon
Want adsorbent.The carbonaceous materials such as activated carbon timber, coal, shell are activated under the conditions of high temperature and are made, specific surface area
Greatly, with very high adsorption capacity.Just because of this characteristic of activated carbon, it is set to be usually used in the pernicious gas in industrial production
Absorption and waste water advanced treating on.
Gas through the preliminary treatment of filter 20 enters absorbent charcoal adsorber 30, because activated charcoal solid surface is present
Lack of equilibrium and unsaturated molecular attraction or valence bond power, therefore when this surface of solids is contacted with gas, with regard to gas can be attracted
Body molecule, makes its dense coalescence be maintained at the surface of solids, polluter and smell are so as to adsorbed, so as to realize the purification to gas
Processing.In the present embodiment, absorbent charcoal adsorber 30 is provided with multiple activated carbon adsorption units.The quantity of activated carbon adsorption unit
It can be determined according to actual purification needs.After activated carbon adsorption unit is using adsorbing to a certain extent, it need to be carried out again
Raw processing, is recycled.
In the present embodiment, active carbon adsorption is combined with other processing methods, the adsorption cycle of activated carbon is substantially prolonged
Long, consumption is reduced, and treatment effect and scope are increased substantially, and can effectively remove stink substance.
In addition to being handled using above-mentioned physical method, also it is combined with chemical method, i.e., using photochemical catalytic oxidation skill
Art carries out purified treatment to waste gas.
Photocatalysis oxidation technique be by the use of artificial quartz burner produce vacuum ripple ultraviolet light as the energy come activated light
Catalyst, drives redox reaction, and photochemical catalyst is not consumed during the course of the reaction, and oxygen is used as by the use of the oxygen in air
Agent, toxic harmful exhaust gas of effectively degrading turns into the maximum feature that the energy is saved in photocatalysis.
The species of photocatalytic oxidation reactor 40 for handling waste gas has a variety of, may be selected from fluidized bed photo catalysis oxidation reaction
Any one in device, folded plate type photocatalytic oxidation reactor and honeycomb photocatalytic oxidation reactor.
In the present embodiment, photocatalytic oxidation reactor 40 is folded plate type photocatalytic oxidation reactor.This is prior art,
Here is omitted for concrete structure.
Purifier also includes air exhausting device 50, and air exhausting device 50 is connected to after photocatalytic oxidation reactor 40, is whole
Individual cleaning system provides dynamic wind source.
The workflow of cleaning system is specifically as shown in Figure 2.At cleaning system of the fermentation waste gas through being provided in the present embodiment
After reason, the standard directly discharged is can reach, meets the requirement of energy-conserving and environment-protective, environment will not be polluted.
Embodiment 2
As shown in figure 3, present embodiments providing a kind of numerous production system of the expansion of liquid strain, the system includes first order seed
Cleaning system in tank 60, secondary seed tank 70 and embodiment 1 for purifying fermentation waste gas in seeding tank, first class seed pot 60
It is connected by pipeline 62 with secondary seed tank 70, cleaning system passes through pipeline and first class seed pot 60, secondary seed tank 70 respectively
Connection.
In the present embodiment, for the sufficient amount of thalline required for being fermented, cultivated in first class seed pot 60
On the basis of carry out the expansion seed culture of secondary seed tank 70.Optimal culture environment is can guarantee that through multistage culture, miscellaneous bacteria is reduced
Quantity.
Due to temperature and pressure to the culture of liquid strain, expand numerous process and have important influence, therefore in first class seed pot
60 and secondary seed tank 70 on be provided with temperature sensor and pressure sensor, be easy to those skilled in the art to enter temperature and pressure
Row monitoring in real time, improves the numerous efficiency of expansion of liquid strain.
Breather pipe is set on first class seed pot 60 and secondary seed tank 70, sky is passed through using electric air pump or other devices
Gas is to increase the oxygen content of liquid.In order to increase the rate of dissolution of oxygen in zymotic fluid, in first class seed pot 60 and secondary seed tank
Agitating device is additionally provided with inside 70, agitating device includes motor and agitating paddle etc..
Further, gas skirt 61, the top of gas-liquid separator 10 are equipped with first class seed pot 60 and secondary seed tank 70
Portion is provided with air inlet 11 and exhaust outlet 12, and bottom is provided with leakage fluid dram 13.The gas collection of first class seed pot 60 and secondary seed tank 70
Cover 61 is connected with the air inlet 11 of gas-liquid separator 10 respectively, and the waste gas produced in seeding tank fermentation process is entered by gas skirt 61
Gas-liquid separation is carried out in gas-liquid separator 10.The exhaust outlet 12 of gas-liquid separator 10 is connected with purifier, is filled by purifying
Put and purified treatment is carried out to isolated gas.The leakage fluid dram 13 of gas-liquid separator 10 is connected with fermentation tank 90, isolated
Liquid go to fermentation tank 90 and recycled as raw material.
Specifically, purifier includes filter 20, absorbent charcoal adsorber 30 and photocatalytic oxidation reactor 40, filtering
Device 20, absorbent charcoal adsorber 30 and photocatalytic oxidation reactor 40 are sequentially connected, the row of filter 20 and gas-liquid separator 10
Gas port 12 is connected.
Purifier also includes air exhausting device 50, and air exhausting device 50 is connected to after photocatalytic oxidation reactor 40, is whole
Individual cleaning system provides wind-force source.The performance parameters such as air quantity, the total head of air exhausting device 50 can be set according to actual needs.
The workflow of the numerous production system of expansion of liquid strain is as shown in Figure 4.Fermentation waste gas after purifier is handled,
It can effectively be purified, the gas after processing meets the standard directly discharged, can directly be discharged by aiutage.
Working method：Water, raw material are separately added into first class seed pot 60 and carry out real tank sterilizing, be i.e. steam passes through first order seed
Tank 60 and material directly contact, add liquid strain after the completion of real tank sterilizing and carry out one grade fermemtation.After one grade fermemtation terminates, material
Secondary seed tank 70 is delivered into by pipeline 62, second order fermentation is carried out after being mixed with water, raw material, is to expand numerous after the completion of fermentation
Liquid strain, transfers them to normal temperature in fluid reservoir 80 and preserves, remain subsequent production and use.
The fermentation waste gas that first class seed pot 60 and secondary seed tank 70 are produced during the fermentation, leads to after being collected by pipeline
Cross gas-liquid separator 10 and carry out gas-liquid separation, liquid is transferred to fermentation tank 90 as raw material after collecting and used as raw material, not outer
Row.The purifier that gas is constituted via filter 20, absorbent charcoal adsorber 30 and photocatalytic oxidation reactor 40 carries out net
After change processing, the standard that can directly discharge is reached, is discharged by aiutage.
From the above, it is seen that the utility model has following advantage：
1st, the cleaning system that the utility model is provided, fermentation waste gas is passed into gas-liquid separator and separated, and is separated
Obtained liquid is recycled, and realizes the purpose economized on resources；Meanwhile, isolated gas passes through by filter, work
Property the purifier stepwise disposal that constitutes of charcoal adsorbent equipment and photocatalytic oxidation reactor, the gas after purified treatment meets environmental protection
It is required that, it can directly discharge, improve what fermentation waste gas purified treatment present in prior art was not polluted thoroughly to environment
Technical problem.
2nd, the numerous production system of expansion for the liquid strain that the utility model is provided, by using above-mentioned cleaning system, to seed
Fermentation waste gas in tank is effectively purified, and the liquid metabolite after gas-liquid separator is transferred to fermentation tank and carries out reclaiming profit
With reaching the purpose economized on resources；Gas after gas-liquid separator is then after purified device stepwise disposal, you can directly arrange
Put, environment will not be polluted, meanwhile, also it must be smoothed out providing the foundation for numerous produce of expansion of liquid strain.
3rd, the numerous production system of expansion for the liquid strain that the utility model is provided, by expanding in numerous production process in multistage and
When exclude the fermentation waste gas produced so that good culture environment is formed in seeding tank, miscellaneous bacteria quantity is reduced, it is ensured that expands numerous production
Be smoothed out.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of cleaning system, it is characterised in that including gas-liquid separator and purifier；
The gas-liquid separator is provided with air inlet, exhaust outlet and leakage fluid dram, and pending gas enters institute by the air inlet
State inside gas-liquid separator, the exhaust outlet of the gas-liquid separator is connected with the purifier, the row of the gas-liquid separator
Liquid mouthful is connected with retracting device；
The purifier includes filter, absorbent charcoal adsorber and photocatalytic oxidation reactor, the filter, activated carbon
Adsorbent equipment and photocatalytic oxidation reactor are sequentially connected, and the filter is connected with the exhaust outlet of the gas-liquid separator；
The purifier also includes air exhausting device, and the air exhausting device is connected to after the photocatalytic oxidation reactor.
2. cleaning system according to claim 1, it is characterised in that the gas-liquid separator is cyclone type gas-liquid separation
Any one in device, adsorption type gas-liquid separator and baffle-type gas-liquid separator.
3. cleaning system according to claim 1, it is characterised in that the absorbent charcoal adsorber is provided with multiple activity
Charcoal absorbing unit.
4. cleaning system according to claim 1, it is characterised in that the photocatalytic oxidation reactor is that fluid bed light is urged
Any one in oxidation device, folded plate type photocatalytic oxidation reactor and honeycomb photocatalytic oxidation reactor.
5. the cleaning system according to claim 1-4 any one, it is characterised in that also set up after the air exhausting device
There is aiutage.
6. a kind of numerous production system of the expansion of liquid strain, it is characterised in that including first class seed pot, secondary seed tank and for net
Change seeding tank in fermentation waste gas the cleaning system as described in claim 1-5 any one, the cleaning system respectively with institute
State first class seed pot, secondary seed tank connection；
Gas skirt is equipped with the first class seed pot and the secondary seed tank, first class seed pot and the secondary seed tank
Air inlet of the gas skirt respectively with the gas-liquid separator is connected, the exhaust outlet of the gas-liquid separator and the purifier phase
Even, the leakage fluid dram of the gas-liquid separator is connected with fermentation tank.
7. according to claim 6 expand numerous production system, it is characterised in that the purifier includes filter, activity
Charcoal adsorbent equipment and photocatalytic oxidation reactor, the filter, absorbent charcoal adsorber and photocatalytic oxidation reactor are successively
Connection, the filter is connected with the exhaust outlet of the gas-liquid separator；
The purifier also includes air exhausting device, and the air exhausting device is connected to after the photocatalytic oxidation reactor.
8. according to claim 7 expand numerous production system, it is characterised in that exhaust is additionally provided with after the air exhausting device
Cylinder.
9. the numerous production system of expansion according to claim 6-8 any one, it is characterised in that the first class seed pot and institute
State the pressure sensor being equipped with secondary seed tank for the temperature sensor of detection temperature and for detecting pressure.
10. the numerous production system of expansion according to claim 6-8 any one, it is characterised in that the first class seed pot with
The secondary seed tank passes through pipeline connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217073.5U CN206543523U (en) | 2017-03-07 | 2017-03-07 | The numerous production system of expansion of cleaning system and liquid strain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217073.5U CN206543523U (en) | 2017-03-07 | 2017-03-07 | The numerous production system of expansion of cleaning system and liquid strain |
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| Publication Number | Publication Date |
|---|---|
| CN206543523U true CN206543523U (en) | 2017-10-10 |
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ID=59995938
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720217073.5U Active CN206543523U (en) | 2017-03-07 | 2017-03-07 | The numerous production system of expansion of cleaning system and liquid strain |
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| Country | Link |
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| CN (1) | CN206543523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115888981A (en) * | 2023-01-10 | 2023-04-04 | 上海润度生物科技有限公司 | Automatic air interchanger for separating waste gas of incubator |
-
2017
- 2017-03-07 CN CN201720217073.5U patent/CN206543523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115888981A (en) * | 2023-01-10 | 2023-04-04 | 上海润度生物科技有限公司 | Automatic air interchanger for separating waste gas of incubator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190124 Address after: 301739 No. 1 Hengyuan Road, Dawang Guzhuang Economic Zone, Wuqing District, Tianjin Co-patentee after: Binzhou golden source Agricultural Engineering Technology Co., Ltd. Patentee after: ETS (TIANJIN) BIOLOGICAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 301739 No. 1 Hengyuan Road, Dawang Guzhuang Economic Zone, Wuqing District, Tianjin Patentee before: ETS (TIANJIN) BIOLOGICAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200427 Address after: 301739 Tianjin Hengyuan Wuqing District dawanggu Economic Zone Village Road No. 1 Patentee after: ETS (TIANJIN) BIOLOGY TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 301739 Tianjin Hengyuan Wuqing District dawanggu Economic Zone Village Road No. 1 Co-patentee before: Binzhou golden source Agricultural Engineering Technology Co., Ltd. Patentee before: ETS (TIANJIN) BIOLOGY TECHNOLOGY DEVELOPMENT Co.,Ltd. |