CN108131886A - A kind of defroster and Defrost method of freezer comb - Google Patents
A kind of defroster and Defrost method of freezer comb Download PDFInfo
- Publication number
- CN108131886A CN108131886A CN201711400254.2A CN201711400254A CN108131886A CN 108131886 A CN108131886 A CN 108131886A CN 201711400254 A CN201711400254 A CN 201711400254A CN 108131886 A CN108131886 A CN 108131886A
- Authority
- CN
- China
- Prior art keywords
- comb
- revolving scraper
- revolving
- scraper ring
- freezer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/065—Removing frost by mechanical means
Abstract
The present invention provides a kind of defroster and Defrost method of freezer comb, a kind of defroster of freezer comb, it is characterised in that：Including a flexible hose, for connecting compressed air source；One comb, comb include smooth comb；One revolving scraper frame, including revolving scraper ring, annular groove and more than one fumarole are provided on revolving scraper ring, annular groove is placed in revolving scraper ring periphery petiolarea, wherein fumarole Single port communicates installation Universal active connector in another port with annular groove, and revolving scraper is located on comb and is axially moved along comb；Revolving scraper ring side is equipped with conehead component, and revolving scraper ring opposite side is equipped with doctor assemblies.The design has the characteristics that：It does not need to heat to comb during defrosting, the defrosting of comb carries out under the temperature of library, and the Ku Wen of freezer does not go up, and freezer is without loss of refrigeration capacity；Using broken nilas and by the way of removing frost layer co-ordination, solve the problems, such as that existing machinery Defrost mode cannot remove nilas.
Description
Technical field
The present invention relates to freezer pipe racking device, in particular to a kind of defrosters and Defrost method of freezer comb.
Background technology
For freezer cooling system at present it is most of use cooling coil because there are air in freezer, when in freezer
Temperature when being reduced to below zero degrees celsius, the moisture in air, which can condense to frost, to be attached on cooling coil, increases cooling row
Cold in pipe carries out the resistance of heat exchange with surrounding air, deteriorates heat-transfer effect, it is therefore necessary to periodically remove.Cooling coil
Defrost method mainly have it is artificial sweep frost, water defrosting, electric defrosting and hot gas defrosting, but it is artificial to sweep white labor intensity too big,
Water defrosting can cause freezer environment dirty and messy, and the energy consumption of electric defrosting is very big, and hot gas defrosting is current most energy-efficient defrosting method, but
It is if misoperation is it will cause " liquid hammer ", destructive, even catastrophic failure occurs.
201120285299.1 mechanical defrosting device for refrigerator cooling grids of utility model patent：It is set in the side of cooling coil
There is a brush head straight-bar, equipped with multiple defrosting brush heads on the brush head straight-bar, defrosting brush head is sleeved on cooling coil, in brush head straight-bar
Portion is connected on an electrified monorail system, and electrified monorail system is located on a running rail, and electrified monorail system is back and forth transported along running rail
It is dynamic, the movement of brush head straight-bar is driven, brush head sweeping is driven to achieve the purpose that defrosting again by brush head straight-bar.Shortcoming is that electrified monorail system is expert at
Into easily blocking in the process, as introduced in this patent embodiment installation brush head straight-bar 3 when electrified monorail system 5 also to be made to be in brush
The intermediate point of head straight-bar 3 keeps balance with the both sides weight for ensureing brush head straight-bar, but since the frost thickness on comb can not
Can be identical, cause resistance suffered by defrosting brush head 2 on the brush head straight-bar 3 of 5 both sides of electrified monorail system impossible identical, therefore brush head
The both sides certainty disequilibrium of straight-bar and electrified monorail system 5 is caused to be stuck.In addition, the frost layer on cooling coil once continues to freeze
Into after nilas, the bristle on the defrosting equipment brush head does not apply to hard nilas yet.
A kind of 201620070823.6 freezer comb of utility model patent continues defroster：Power is installed on comb
Device, frost removal and driving mechanism defrost.Shortcoming is the distance and interlamellar spacing needed between in-site measurement comb, and process is cumbersome,
It is inconvenient to use.
Invention content
The present invention in view of the above-mentioned problems existing in the prior art, provides defroster and the defrosting side of a kind of freezer comb
Method does not need to heat during defrosting, the library temperature of freezer fluctuates during avoiding defrosting, and one is provided neatly for freezer
Environment, while mitigate the labor intensity of freezer management personnel.
The goal of the invention of the present invention is realized by following scheme：
A kind of defroster of freezer comb, it is characterised in that：Including
One flexible hose, for connecting compressed air source；
One comb, comb include smooth comb；
One revolving scraper frame including revolving scraper ring, is provided with annular groove and more than one jet on revolving scraper ring
Hole, annular groove are placed in revolving scraper ring periphery petiolarea, and it is universal to communicate another port installation with annular groove for wherein fumarole Single port
Active joint, above-mentioned flexible hose and Universal active connector, fumarole are communicated by Universal active connector with the flexible hose,
Revolving scraper is located on comb and is axially moved along comb；Revolving scraper ring side is equipped with to tap nilas on comb
Conehead component, revolving scraper ring opposite side is equipped with the doctor assemblies for removing comb surface.
Further, conehead component includes conehead and bindiny mechanism, and bindiny mechanism is fixedly mounted on revolving scraper ring,
Above-mentioned conehead is flexibly connected with bindiny mechanism, and movable connection method includes hinged.
Further, doctor assemblies include elastic component and scraper, and each scraper is correspondingly connected with an elastic component, specifically
Ground, scraper one end are fixed on revolving scraper ring, and the other end connects the elastic component.
Further, jet hole number is at least provided with four, along revolving scraper annulate shaft to being uniformly distributed, and with rotation
Axially there are angle a and with revolving scraper ring, radially there are angle b for scraper rings.
Further, the direction of all fumaroles is consistent, each along revolving scraper annulate shaft to being uniformly distributed.
Further, elastic component is evenly distributed with including spring, spring and scraper along the concentric circles of revolving scraper ring, and the two quantity exists
Four or more, and the threshold value of the center of circle to each scraper of the concentric circles of each revolving scraper ring is identical, scraper and comb
Radially there are angle, and direction is consistent.
Further, tup includes acute angle conehead, and for acute angle conehead using bindiny mechanism as turning point, conehead can be around bindiny mechanism
It pumps, acute angle conehead is 60 ° with respect to bindiny mechanism's hard-over.
Further, revolving scraper ring is divided into symmetrical first revolving scraper ring and second to revolve along the center line of end face
Turn scraper rings.
Further, Defrost mode is as follows：When the smooth comb of freezer needs defrosting, by revolving scraper ring or
The the first revolving scraper ring and the second revolving scraper ring for the two halves that person is separated into close up from the periphery of steel pipe, and annular groove is at docking
Sealing is formed, connects and communicates by Universal active connector between revolving scraper ring and flexible hose, acute angle tup passes through connection
Mechanism is connect with revolving scraper ring, and during start-up operation, the compressed air source being connected with flexible hose is opened, and has certain pressure
Compressed air enter in the annular groove of revolving scraper ring, then from being with revolving scraper ring central shaft and radially tangential more
A fumarole sprays, push revolving scraper ring along comb axial screw it is rotating be rotationally advancing, due to scraper inclined direction with
Spiral rotating direction is consistent, while under the motive force of compressed air, partial pressure is made to be converted into alternation by bindiny mechanism
Mechanical force makes the surface of acute angle tup hammering comb, realizes the nilas of broken steel tube surface, and scraper is used to remove steel tube surface
Frost layer.
The beneficial effects of the present invention are：
It does not need to heat to comb when the 1st, defrosting, the defrosting of comb carries out under the temperature of library, and the Ku Wen of freezer does not go up, freezer
Without loss of refrigeration capacity；
2nd, scraper dexterously is connected with spring, diameter of steel tube is inconsistent, there are scraper is automatically adjusted during deviation for circularity
Elasticity makes scraper be not to be stuck；
3rd, using broken nilas and by the way of removing frost layer co-ordination, ice cannot be removed by solving existing machinery Defrost mode
The problem of shell；
4th, it is more more energy efficient than existing mechanical defroster using compressed air as power.
Description of the drawings
Fig. 1 is defroster overall structure diagram of the present invention；
Fig. 2 is the structure diagram of revolving scraper frame；
Fig. 3 is the sectional view of Fig. 2.
Specific embodiment
Below in conjunction with specific embodiments and the drawings, the invention will be further described.
Embodiment
With reference to attached drawing 1 to shown in Fig. 3, a kind of defroster and Defrost method of freezer comb provided by the invention, specifically
Ground：Including flexible hose 1, Universal active connector 2, smooth comb 4, bindiny mechanism 5, tup (using acute angle conehead 6, acute angle cone
Head, which can more effectively be hit, strikes ice sheet) and revolving scraper frame 300, revolving scraper frame 300 mainly includes revolving scraper ring, rotation
Doctor blade holder 300 has fumarole 301, elastic component (elastic component the design uses spring 302, and but not limited to this), scraper
303.Scraper 303 is fixed on spring 302, and spring 302 is fixed on 300 ontologies, and a spring, bullet are correspondingly connected with per scraper
Spring and scraper are evenly distributed with along revolving scraper frame concentric circles, and quantity is at four or more, the center of circle to the end of each scraper 303 of concentric circles
Apart from all same, spring 302 is used for diameter of steel tube is inconsistent, circularity is there are the elasticity that scraper 303 is automatically adjusted during deviation,
Scraper 303 is made to be not to be stuck.Scraper 303 with 4 radial direction of steel pipe there are angle, and direction is consistent.The quantity of fumarole 301
At least at four or more, be uniformly distributed along the circumferential direction of revolving scraper frame 300 and communicated with annular groove 304, and with revolving scraper frame
There are angle b there are angle a, while with the radial direction of revolving scraper frame 300 for 300 axial direction, and the angle of a+b is without departing from 90 °, and institute
The direction for having fumarole is consistent.Annular groove 304 is communicated with flexible hose 1 and Universal active connector 2.The quantity of acute angle tup 6 exists
It three or more, is uniformly distributed along the circumferential direction of revolving scraper frame 300, acute angle tup 6 passes through bindiny mechanism 5 and revolving scraper frame 300
Connection, the maximum angular displacement of acute angle tup 6 are for 60 °, i.e. C=60 of origin with bindiny mechanism 5, and frame 300 is along end face center line pair
What is claimed cuts away half, and annular groove 304 can dock at subdivision and form sealing when closing up.
Specifically defrosting implementation process is：When the smooth comb of freezer needs defrosting, by the two halves of revolving scraper frame 300 from steel
The periphery of pipe 4 closes up, and annular groove 304 forms sealing at docking, by universal between revolving scraper frame 300 and flexible hose 1
Active joint 2 is connected and is communicated, and acute angle tup is connect by bindiny mechanism 5 with revolving scraper frame 300.It is and soft during start-up operation
Property the compressed air source that is connected of hose open, there is the compressed air of certain pressure into the annular groove of people's revolving scraper frame 300
In 304, then from being that tangential multiple fumaroles 301 spray with 300 central shaft of revolving scraper frame and radial direction, rotation is pushed to scrape
Knife rest 300 along steel pipe 4 axial screw it is rotating be rotationally advancing, the inclined direction of scraper 303 is consistent with spiral rotating direction.Simultaneously
Under the motive force of compressed air, partial pressure is made to be converted into the mechanical force of alternation by bindiny mechanism 5, make acute angle tup 6 with
The surface of certain frequency and dynamics hammering steel pipe 4, acute angle tup 6 are mounted on the front end of 300 direction of advance of revolving scraper frame.Acute angle
Tup 6 is used to crush the nilas on 4 surface of steel pipe, and scraper 303 is used to remove the frost layer of steel tube surface.
Although the present invention is shown and described by reference to preferred embodiment, ordinary skill
Personnel in the range of claims, can make form and details it is to be appreciated that the description that can be not limited to the above embodiments
On various change.
Claims (9)
1. a kind of defroster of freezer comb, it is characterised in that：Including
One flexible hose, for connecting compressed air source；
One comb, comb include smooth comb；
One revolving scraper frame including revolving scraper ring, is provided with annular groove and more than one fumarole, ring on revolving scraper ring
Shape slot is placed in revolving scraper ring periphery petiolarea, and wherein fumarole Single port communicates another port installation Universal active with annular groove and connects
Head, above-mentioned flexible hose and Universal active connector, fumarole are communicated by Universal active connector with the flexible hose, and rotation is scraped
Knife is located on comb and is axially moved along comb；Revolving scraper ring side is equipped with the conehead for tapping nilas on comb
Component, revolving scraper ring opposite side are equipped with the doctor assemblies for removing comb surface.
2. a kind of defroster of freezer comb according to claim 1, it is characterised in that：Conehead component include conehead with
And bindiny mechanism, bindiny mechanism are fixedly mounted on revolving scraper ring, above-mentioned conehead is flexibly connected with bindiny mechanism, flexible connection
Mode includes hinged.
3. a kind of defroster of freezer comb according to claim 1, it is characterised in that：Doctor assemblies include elastic component
And scraper, each scraper are correspondingly connected with an elastic component, specifically, scraper one end is fixed on revolving scraper ring, another
End connects the elastic component.
4. a kind of defroster of freezer comb according to claim 2, it is characterised in that：Jet hole number at least provided with
Four, along revolving scraper annulate shaft to being uniformly distributed, and with revolving scraper annulate shaft to there are angle a, with revolving scraper ring
Radially there are angle b.
5. a kind of defroster of freezer comb according to claim 4, it is characterised in that：The direction one of all fumaroles
It causes, each along revolving scraper annulate shaft to being uniformly distributed.
6. a kind of defroster of freezer comb according to claim 3, it is characterised in that：Elastic component includes spring, bullet
Spring and scraper are evenly distributed with along the concentric circles of revolving scraper ring, and the two quantity is at four or more, and the concentric circles of each revolving scraper ring
The center of circle to each scraper threshold value it is identical, the radial direction of scraper and comb is there are angle, and direction is consistent.
7. a kind of defroster of freezer comb according to claim 2, it is characterised in that：Tup includes acute angle conehead,
Using bindiny mechanism as turning point, conehead can pump acute angle conehead around bindiny mechanism, and acute angle conehead is with respect to bindiny mechanism
Hard-over is 60 °.
8. the defroster and Defrost method of a kind of freezer comb according to claim 1 to 7 any one, feature exist
In：Revolving scraper ring is divided into symmetrical first revolving scraper ring and the second revolving scraper ring along the center line of end face.
9. a kind of Defrost method of the defroster of freezer comb according to claim 8, it is characterised in that：Defrost mode
It is as follows：When the smooth comb of freezer needs defrosting, by the first rotation of revolving scraper ring or the two halves being separated into
Scraper rings and the second revolving scraper ring close up from the periphery of steel pipe, and annular groove forms sealing at docking, revolving scraper ring with it is soft
It connects and communicates by Universal active connector between property hose, acute angle tup is connect by bindiny mechanism with revolving scraper ring, is opened
During beginning work, the compressed air source being connected with flexible hose is opened, and the compressed air with certain pressure enters revolving scraper
In the annular groove of ring, then from being that tangential multiple fumaroles spray with revolving scraper ring central shaft and radial direction, rotation is pushed
Scraper rings along comb axial screw it is rotating be rotationally advancing, since the inclined direction of scraper is consistent with spiral rotating direction, simultaneously
Under the motive force of compressed air, partial pressure is made to be converted into the mechanical force of alternation by bindiny mechanism, hammer acute angle tup
The surface of comb, realizes the nilas of broken steel tube surface, and scraper is used to remove the frost layer of steel tube surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400254.2A CN108131886B (en) | 2017-12-22 | 2017-12-22 | Defrosting device and method for refrigerator calandria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400254.2A CN108131886B (en) | 2017-12-22 | 2017-12-22 | Defrosting device and method for refrigerator calandria |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131886A true CN108131886A (en) | 2018-06-08 |
| CN108131886B CN108131886B (en) | 2020-07-14 |
Family
ID=62391390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711400254.2A Active CN108131886B (en) | 2017-12-22 | 2017-12-22 | Defrosting device and method for refrigerator calandria |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131886B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806055A (en) * | 2019-11-26 | 2020-02-18 | 合肥美科制冷技术有限公司 | Automatically controlled forced air cooling automatic defrosting refrigerator |
| CN113074292A (en) * | 2021-03-05 | 2021-07-06 | 安徽合宇天成建设工程有限公司 | Warm logical engineering is with warm type warm logical pipe of heat preservation |
| CN113739503A (en) * | 2021-11-08 | 2021-12-03 | 烟台永诚制冷科技有限公司 | Aluminum row pipeline defroster with intelligent regulation function |
| CN115096034A (en) * | 2022-06-23 | 2022-09-23 | 青岛海容商用冷链股份有限公司 | Intelligent defrosting control device and working method |
| EP4067781A1 (en) * | 2021-03-30 | 2022-10-05 | 3con Anlagebau GmbH | Cooling coil for cold air generation with de-icing device |
| CN115213178A (en) * | 2022-09-20 | 2022-10-21 | 南通市海门雪盾冷冻设备有限公司 | Pipeline cleaning device and application in refrigeration equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54134850A (en) * | 1978-04-12 | 1979-10-19 | Hitachi Ltd | Air cooler |
| US20020170909A1 (en) * | 1998-06-15 | 2002-11-21 | Petrenko Victor F. | Plasma-based de-icing |
| WO2005028974A1 (en) * | 2003-09-19 | 2005-03-31 | University Of Florida | System for trapping airborne water in cooling and freezing devices |
| CN101210760A (en) * | 2006-12-26 | 2008-07-02 | 财团法人工业技术研究院 | Demisting device |
| CN203837375U (en) * | 2014-05-27 | 2014-09-17 | 海霸王（汕头）食品有限公司 | Automatic defroster |
| CN104215015A (en) * | 2011-03-17 | 2014-12-17 | 株式会社龙城冷冻 | Apparatus for eliminating frost of freezer |
| CN107356038A (en) * | 2017-07-18 | 2017-11-17 | 深圳市中科智诚科技有限公司 | A kind of refrigerating equipment with automatic de-icing and purification odor function |
-
2017
- 2017-12-22 CN CN201711400254.2A patent/CN108131886B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54134850A (en) * | 1978-04-12 | 1979-10-19 | Hitachi Ltd | Air cooler |
| US20020170909A1 (en) * | 1998-06-15 | 2002-11-21 | Petrenko Victor F. | Plasma-based de-icing |
| WO2005028974A1 (en) * | 2003-09-19 | 2005-03-31 | University Of Florida | System for trapping airborne water in cooling and freezing devices |
| CN101210760A (en) * | 2006-12-26 | 2008-07-02 | 财团法人工业技术研究院 | Demisting device |
| CN104215015A (en) * | 2011-03-17 | 2014-12-17 | 株式会社龙城冷冻 | Apparatus for eliminating frost of freezer |
| CN203837375U (en) * | 2014-05-27 | 2014-09-17 | 海霸王（汕头）食品有限公司 | Automatic defroster |
| CN107356038A (en) * | 2017-07-18 | 2017-11-17 | 深圳市中科智诚科技有限公司 | A kind of refrigerating equipment with automatic de-icing and purification odor function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806055A (en) * | 2019-11-26 | 2020-02-18 | 合肥美科制冷技术有限公司 | Automatically controlled forced air cooling automatic defrosting refrigerator |
| CN113074292A (en) * | 2021-03-05 | 2021-07-06 | 安徽合宇天成建设工程有限公司 | Warm logical engineering is with warm type warm logical pipe of heat preservation |
| EP4067781A1 (en) * | 2021-03-30 | 2022-10-05 | 3con Anlagebau GmbH | Cooling coil for cold air generation with de-icing device |
| CN113739503A (en) * | 2021-11-08 | 2021-12-03 | 烟台永诚制冷科技有限公司 | Aluminum row pipeline defroster with intelligent regulation function |
| CN113739503B (en) * | 2021-11-08 | 2022-02-08 | 烟台永诚制冷科技有限公司 | Aluminum row pipeline defroster with intelligent regulation function |
| CN115096034A (en) * | 2022-06-23 | 2022-09-23 | 青岛海容商用冷链股份有限公司 | Intelligent defrosting control device and working method |
| CN115213178A (en) * | 2022-09-20 | 2022-10-21 | 南通市海门雪盾冷冻设备有限公司 | Pipeline cleaning device and application in refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131886B (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108131886A (en) | A kind of defroster and Defrost method of freezer comb | |
| CN107159653B (en) | Rod scraper based on high temperature paraffin removal | |
| CN205341432U (en) | Volumetric flask cleaning brush | |
| CN114111181A (en) | Defrosting device of cold storage door | |
| CN111744893A (en) | Deicing and defrosting method for LNG low-temperature pipeline and special purging device | |
| CN106931825A (en) | A kind of rubber ball cleaning robot device | |
| CN115351018A (en) | Natural gas pipeline blockage clearing device and method | |
| CN110011264B (en) | Wire defroster for high-voltage power transmission and transformation engineering | |
| CN209085155U (en) | A kind of pipeline air blowing and water removing defroster | |
| CN208613149U (en) | A kind of horizontal continuity roller brush type fire hose rinse bath | |
| CN107695053B (en) | Oil pipeline pigging device | |
| US2308541A (en) | Refrigeration | |
| CN106746717B (en) | Cleaning device and PI liquid coating equipment | |
| EP3364041A1 (en) | Fan blade and corresponding fan | |
| KR20160060281A (en) | Snow shaved ice icemaker | |
| CN110284869A (en) | A kind of natural gas extraction impurity separation system | |
| CN215391379U (en) | Bullet type self-rotating pipe cleaner | |
| CN202445091U (en) | Pecan peeling and cleaning equipment | |
| CN104697258A (en) | Mechanical automatic frog scraping device suitable for circular finned pipe evaporator | |
| CN108683146A (en) | A kind of cable de-icing device | |
| KR101040513B1 (en) | Rotatable nozzle for frost removing apparatus of freezer | |
| US1603061A (en) | Defroster for refrigerating plants | |
| CN113510590A (en) | Repairing pretreatment device for metal water supply pipeline and using method | |
| CN207598216U (en) | Cleaning knife in a kind of oil pipe pipe | |
| CN206661758U (en) | Machinery drum cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A defrosting device and defrosting method for cold storage pipe Effective date of registration: 20210830 Granted publication date: 20200714 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: TAIZHOU LONGJIANG CHEMICAL MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2021330001276 |