CN107930714A - Metal detection corrosivity container cooling body - Google Patents
Metal detection corrosivity container cooling body Download PDFInfo
- Publication number
- CN107930714A CN107930714A CN201810006921.7A CN201810006921A CN107930714A CN 107930714 A CN107930714 A CN 107930714A CN 201810006921 A CN201810006921 A CN 201810006921A CN 107930714 A CN107930714 A CN 107930714A
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- China
- Prior art keywords
- condenser
- cooling body
- cooler bin
- metal detection
- water
- 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.)
- Pending
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- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000012360 testing method Methods 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1838—Means for temperature control using fluid heat transfer medium
- B01L2300/185—Means for temperature control using fluid heat transfer medium using a liquid as fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1894—Cooling means; Cryo cooling
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of metal detection corrosivity container cooling body, including cooler bin, the upper surface of cooler bin is equipped with control panel, control panel is internally provided with single chip control unit, and the center of the upper surface of cooler bin has jack, the lower end insertion jack of condenser, the upper surface of cooler bin is additionally provided with water receiving hole, the lower end of cooler bin is equipped with apopore, and cooler bin is internally provided with diversion pipe, and apopore is tightly connected with water inlet pipe；The bottom of condenser is equipped with positioning seat, and the upper end of positioning seat is inner concave, and the upper end of condenser is equipped with drainage tube, and drainage tube connection condenser, the lower end of condenser is connected with outlet pipe；Water inlet pipe is fixedly connected with the water inlet of suction pump, and outlet pipe is fixedly connected with the water outlet of suction pump；The junction of water inlet pipe and diversion pipe is equipped with electromagnetic valve；The inner wall of drainage tube is equipped with the temperature sensor of waterproof.The cooling body cooling effectiveness of the present invention is good, and dynamicization degree is high, stable structure.
Description
Technical field
The present invention relates to cooling device technical field, more particularly to a kind of metal detection corrosivity container circulating cooling
Mechanism.
Background technology
During being detected to metal protection, metal produces chemical reaction in test tube with corrosive liquid, and the chemistry is anti-
Should be mostly with exothermic phenomenon.On the one hand, constantly saved bit by bit due to continuing heat release and heat in the small space of test tube, it is short
Easily test tube is caused to burst in time, the corrosive liquid and glass fragment temperature for splashing out are high, and corrosive liquid has severe corrosive,
Easily cause operating personnel's actual bodily harm, serious threat to life；On the other hand, in metal protection detection process, due to corruption
It is high to lose fluid temperature, the moisture and solvent included easily evaporates, and causes corrosive liquid concentration weakened, so as to influence metal erosion
The evaluation of property testing result.
China Patent No. CN104315876A discloses a kind of condensing unit, including a shell, and bottom is equipped with shell
Fixed frame, is fixed with one group of mould on fixed frame, mould feeding mouth is less than case top, and case top is equipped with water inlet, mould
Wrapped around tool feeding mouth by rubber or cotton fiber, fixed frame is internally provided with ice cube or ice bag.
Although foregoing invention compared with conventional art, shortens condensation time, condensation effect unobvious, safety coefficient
Low, the degree of automation is low, and specifically there are problems with：
First, the condensing unit of foregoing invention is not carried out cooling water circulation use, wastes water source, increases cost overhead；
2nd, addition of the condensing unit of foregoing invention for cooling water is manual operation, does not possess cooling water temperature sense
Should, Coolant-Level sensing, cooling water intelligent circulation conveying and alarm etc. function, the degree of automation is low, takes muscle power；
In order to overcome drawbacks described above, the positive innovation research of those skilled in the art is rotten to create a kind of metal detection
Corrosion container cooling body.
The content of the invention
In view of the problems of the existing technology, the present invention provides a kind of metal detection corrosivity container circulating cooling machine
Structure, after the cooling body, single chip control unit according to the inductive signal of liquid level sensor and temperature sensor into
Row judges, and control in real time draws water pump circulation toward cooling cavities water inlet, realizes that condenser carries out intelligence to invisible spectro corrosive liquid
Circulating cooling.
In order to solve the above technical problems, one aspect of the present invention is：
A kind of metal detection corrosivity container cooling body, including cooler bin, the upper end of the cooler bin are provided
Face is equipped with control panel, and the control panel is internally provided with single chip control unit, the center of the upper surface of the cooler bin
With jack, the jack is inserted into the lower end of condenser, and the upper surface of the cooler bin is additionally provided with water receiving hole, the water receiving hole position
In the underface of drainage tube, the side wall of the lower end of the cooler bin is equipped with apopore, and the cooler bin is internally provided with diversion pipe,
One end of the diversion pipe connects the water receiving hole, and the other end of the diversion pipe connects the apopore, the apopore with
Water inlet pipe is tightly connected；
The inner surface of the bottom of the condenser is equipped with positioning seat, and the upper end of the positioning seat is inner concave, the condensation
The side wall of the upper end of device is equipped with the drainage tube, and the drainage tube connects the condenser, the side wall of the lower end of the condenser
Connected with outlet pipe；
The water inlet pipe is fixedly connected with the inlet opening of suction pump, and the water outlet of the outlet pipe and the suction pump is fixed
Connection；
The junction of the water inlet pipe and the diversion pipe is equipped with electromagnetic valve, the electromagnetic valve and the microcontroller control
Unit processed is electrically connected；
The inner wall of the drainage tube is equipped with the temperature sensor of waterproof, and the temperature sensor is electrically connected with signal acquisition module
Connect, the signal acquisition module is arranged on the inside of the single chip control unit；
The control panel is electrically connected with storage battery group.
Further say, the cooler bin is integrally formed with the condenser, the inner wall of the condenser and test tube it is outer
Cooling cavities is formed between wall, the cooling cavities accommodates coolant.
Further say, the test tube is placed on the positioning seat, the bottom of the inner concave of the positioning seat and the test tube
Portion matches, and the positioning seat is one kind in cylinder, round platform, cuboid and square.
Further say, the inner wall of the condenser is carved with the screw thread quickly to circulate beneficial to cooling water.
Further say, the suction pump is electrically connected with bridge-type motor drive module, and the bridge-type motor drive module is set
In the inside of the single chip control unit.
Further say, the inner wall of the condenser is fixed with the liquid level sensor of waterproof, the liquid level sensor and institute
Signal acquisition module electrical connection is stated, the liquid level sensor is in same level with the drainage tube.
Further say, the control panel is equipped with alarm device and the power knob for controlling on/off, institute
Alarm device is stated to be electrically connected with the single chip control unit.
Further say, the warning device is at least one of flashing lamp and buzzer.
Further say, the upper surface of the condenser opens up some ventholes for being used to discharge steam.
The beneficial effects of the invention are as follows：
First, the bottom of condenser of the invention is equipped with positioning seat, and the upper end of positioning seat is inner concave, and test tube is placed in positioning seat
On, the inner concave of positioning seat and the bottom mating of test tube, strengthen the fastness of test tube, increase test tube and the contact surface of coolant
Product, improves the cooling effectiveness in Process of Metallic Corrosion；
2nd, cooling body of the invention is equipped with control panel, and single chip control unit, monolithic are equipped with control panel
Machine control unit is internally provided with signal acquisition module and bridge-type motor drive module, signal acquisition module respectively with condenser
The temperature sensor of liquid level sensor and drainage inside pipe wall on wall is electrically connected, and the junction of water inlet pipe and diversion pipe is equipped with electromagnetism
Valve, electromagnetic valve are electrically connected with single chip control unit, and suction pump is electrically connected with bridge-type motor drive module, on control panel
Alarm device is additionally provided with, realizes cooling water temperature sensing and Coolant-Level sensing, finally realizes that cooling water intelligent circulation conveys
With the function of automatic alarm, the degree of automation is high, saves muscle power, and securely and reliably, cooling effectiveness is high；
3rd, condenser and cooler bin of the invention are integrally formed, and are formed between the inner wall of condenser and the outer wall of test tube cold
But cavity, the cooling cavities accommodate coolant, and the inner wall of condenser is carved with the screw thread quickly to circulate beneficial to cooling water, and cold
The upper surface of condenser opens up some ventholes for being used to discharge steam, improves cooldown rate, reduce causes to condense because heat gathers
The risk that device is burst.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate attached drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the control principle drawing of the present invention；
Each several part mark is as follows in attached drawing：
Cooler bin 1, control panel 1-1, single chip control unit 1-2, signal acquisition module 1-2-1, the driving of bridge-type motor
Module 1-2-2, water receiving hole 1-3, drainage tube 2, apopore 3, diversion pipe 4, water inlet pipe 5, condenser 6, outlet pipe 6-1, positioning seat
7th, inner concave 7-1, suction pump 8, water inlet 8-1, water outlet 8-2, electromagnetic valve 9, temperature sensor 10, storage battery group 11, cold
But cavity 12, test tube 13, screw thread 14, alarm device 15, power knob 16, venthole 17 and liquid level sensor 18.
Embodiment
Illustrate the embodiment of the present invention below by way of particular specific embodiment, those skilled in the art can be by this
The revealed content of specification understands advantages of the present invention and effect easily.The present invention can also other different modes give
Implement, i.e. without departing substantially under the scope of disclosed, different modification and change can be given.
Embodiment：A kind of metal detection corrosivity container cooling body, as depicted in figs. 1 and 2, including cooler bin
1, the upper surface of the cooler bin is equipped with control panel 1-1, and the control panel is internally provided with single chip control unit 1-2,
The center of the upper surface of the cooler bin has jack, and the jack, the upper surface of the cooler bin are inserted into the lower end of condenser 6
Water receiving hole 1-3 is additionally provided with, the water receiving hole is located at the underface of drainage tube 2, and the side wall of the lower end of the cooler bin is equipped with water outlet
Hole 3, the cooler bin are internally provided with diversion pipe 4, and one end of the diversion pipe connects the water receiving hole, the diversion pipe it is another
One end connects the apopore, and the apopore is tightly connected with water inlet pipe 5；
The inner surface of the bottom of the condenser is equipped with positioning seat 7, and the upper end of the positioning seat is inner concave 7-1, described
The side wall of the upper end of condenser is equipped with the drainage tube, and the drainage tube connects the condenser, the lower end of the condenser
Side wall is connected with outlet pipe 6-1；
The water inlet pipe is fixedly connected with the water inlet 8-1 of suction pump 8, the water outlet of the outlet pipe and the suction pump
8-2 is fixedly connected；
The junction of the water inlet pipe and the diversion pipe is equipped with electromagnetic valve 9, the electromagnetic valve and the microcontroller
Control unit is electrically connected；
The inner wall of the drainage tube is equipped with the temperature sensor 10 of waterproof, the temperature sensor and signal acquisition module 1-
2-1 is electrically connected, and the signal acquisition module is arranged on the inside of the single chip control unit；
The control panel is electrically connected with storage battery group 11.
The cooler bin is integrally formed with the condenser, is formed between the inner wall of the condenser and the outer wall of test tube 13
Cooling cavities 12, the cooling cavities accommodate coolant.
The test tube is placed on the positioning seat, the bottom mating of the inner concave of the positioning seat and the test tube, described
Positioning seat is one kind in cylinder, round platform, cuboid and square.
The inner wall of the condenser is carved with the screw thread 14 quickly to circulate beneficial to cooling water.
The suction pump is electrically connected with bridge-type motor drive module 1-2-2, and the bridge-type motor drive module is arranged on described
The inside of single chip control unit.
The inner wall of the condenser is fixed with the liquid level sensor 18 of waterproof, the liquid level sensor and the signal acquisition
Module is electrically connected, and the liquid level sensor is in same level with the drainage tube.
The control panel is equipped with alarm device 15 and the power knob 16 for controlling on/off, the alarm dress
Put and be electrically connected with the single chip control unit.
The warning device is at least one of flashing lamp and buzzer.
The upper surface of the condenser opens up some ventholes 17 for being used to discharge steam.
The course of work and operation principle of the present invention is as follows：
The bottom of the condenser of the present invention is equipped with positioning seat, and the upper end of positioning seat is inner concave, and test tube is placed on positioning seat,
The inner concave of positioning seat and the bottom mating of test tube, strengthen the fastness of test tube, increase the contact area of test tube and coolant, carry
Cooling effectiveness in high metal corrosion process；
The cooling body of the present invention is equipped with control panel, and single chip control unit, microcontroller are equipped with control panel
Control unit is internally provided with signal acquisition module and bridge-type motor drive module, signal acquisition module respectively with condenser inner wall
On liquid level sensor and the temperature sensor of drainage inside pipe wall be electrically connected, the junction of water inlet pipe and diversion pipe is equipped with solenoid valve
Door, electromagnetic valve are electrically connected with single chip control unit, and suction pump is electrically connected with bridge-type motor drive module, on control panel also
Equipped with alarm device, realize cooling water temperature sensing and Coolant-Level sensing, finally realize cooling water intelligent circulation conveying and
The function of automatic alarm, the degree of automation is high, saves muscle power, and securely and reliably, cooling effectiveness is high；
The condenser of the present invention is integrally formed with cooler bin, and cooling chamber is formed between the inner wall of condenser and the outer wall of test tube
Body, the cooling cavities accommodate coolant, and the inner wall of condenser is carved with the screw thread quickly to circulate beneficial to cooling water, and condenser
Upper surface open up it is some be used to discharge the ventholes of steam, improve cooldown rate, reduce causes condenser to be fried because heat gathers
The risk split；
Metal is positioned in the test tube equipped with corrosive liquid, in the lower end insertion jack of test tube, until the bottom of test tube
It is fixed on positioning seat, startup power supply button, liquid level sensor sensing water level, if water level is less than setting value, microcontroller control
Unit sends commands to bridge-type motor drive module and electromagnetic valve, and driving battery valve is opened, and suction pump starts to draw water；Temperature
The temperature of sensor sensing cooling water, if temperature is higher than setting value, single chip control unit sends commands to the driving of bridge-type motor
Module and electromagnetic valve, drive magnetic valve door are opened, and suction pump starts to draw water；As long as liquid level sensor and temperature sensor are wherein
One kind is unsatisfactory for setting value, triggers warning device, and drive magnetic valve door is opened, and suction pump draws water；
When water level or temperature reach setting value, suction pump stops pumping, and electromagnetic valve is closed；
Coolant temperature in cooling cavities during cooling is high, easily forms the higher water vapour of temperature, condenser
Upper end open up some ventholes, facilitate water vapour to discharge, avoid the risk for causing test tube to burst because of heat build-up.
The foregoing is merely the embodiment of the present invention, not thereby the foregoing is merely the embodiment of the present invention, not because
This limitation the present invention the scope of the claims, every equivalent structure made using description of the invention and accompanying drawing content, or directly or
Other related technical areas are used in indirectly, are included within the scope of the present invention.
Claims (9)
- A kind of 1. metal detection corrosivity container cooling body, it is characterised in that：Including cooler bin (1), the cooling The upper surface of case is equipped with control panel (1-1), and the control panel is internally provided with single chip control unit (1-2), described cold But the center of the upper surface of case has jack, and the jack is inserted into the lower end of condenser (6), and the upper surface of the cooler bin is also set There is water receiving hole (1-3), the water receiving hole is located at the underface of drainage tube (2), and the side wall of the lower end of the cooler bin is equipped with water outlet Hole (3), the cooler bin are internally provided with diversion pipe (4), and one end of the diversion pipe connects the water receiving hole, the diversion pipe The other end connect the apopore, the apopore is tightly connected with water inlet pipe (5)；The inner surface of the bottom of the condenser is equipped with positioning seat (7), and the upper end of the positioning seat is inner concave (7-1), described The side wall of the upper end of condenser is equipped with the drainage tube, and the drainage tube connects the condenser, the lower end of the condenser Side wall is connected with outlet pipe (6-1)；The water inlet pipe is fixedly connected with the water inlet (8-1) of suction pump (8), the water outlet of the outlet pipe and the suction pump (8-2) is fixedly connected；The junction of the water inlet pipe and the diversion pipe is equipped with electromagnetic valve (9), the electromagnetic valve and the microcontroller control Unit processed is electrically connected；The inner wall of the drainage tube is equipped with the temperature sensor (10) of waterproof, the temperature sensor and signal acquisition module (1- 2-1) it is electrically connected, the signal acquisition module is arranged on the inside of the single chip control unit；The control panel is electrically connected with storage battery group (11).
- 2. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The cooling Case is integrally formed with the condenser, and cooling cavities (12) is formed between the outer wall of the inner wall and test tube (13) of the condenser, The cooling cavities accommodates coolant.
- 3. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The test tube It is placed on the positioning seat, the bottom mating of the inner concave of the positioning seat and the test tube, the positioning seat is cylinder, circle One kind in platform, cuboid and square.
- 4. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The condensation The inner wall of device is carved with the screw thread (14) quickly to circulate beneficial to cooling water.
- 5. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：It is described to draw water Pump is electrically connected with bridge-type motor drive module (1-2-2), and the bridge-type motor drive module is arranged on the single chip control unit Inside.
- 6. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The condensation The inner wall of device is fixed with the liquid level sensor (18) of waterproof, and the liquid level sensor is electrically connected with the signal acquisition module, institute Liquid level sensor is stated to be in same level with the drainage tube.
- 7. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The control Panel is equipped with alarm device (15) and the power knob (16) for controlling on/off, the alarm device and the monolithic Machine control unit is electrically connected.
- 8. metal detection corrosivity container cooling body according to claim 7, it is characterised in that：The alarm Device is at least one of flashing lamp and buzzer.
- 9. metal detection corrosivity container cooling body according to claim 1, it is characterised in that：The condensation The upper surface of device opens up some ventholes (17) for being used to discharge steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006921.7A CN107930714A (en) | 2018-01-04 | 2018-01-04 | Metal detection corrosivity container cooling body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006921.7A CN107930714A (en) | 2018-01-04 | 2018-01-04 | Metal detection corrosivity container cooling body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107930714A true CN107930714A (en) | 2018-04-20 |
Family
ID=61938293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810006921.7A Pending CN107930714A (en) | 2018-01-04 | 2018-01-04 | Metal detection corrosivity container cooling body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107930714A (en) |
Citations (6)
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|---|---|---|---|---|
| US6286316B1 (en) * | 1998-12-21 | 2001-09-11 | Edwards Engineering Corp. | System for recovering and utilizing vapor |
| CN201181114Y (en) * | 2008-03-11 | 2009-01-14 | 曾舟华 | Circulation type natural convection efficient solar water heater |
| CN206131738U (en) * | 2016-08-16 | 2017-04-26 | 彭州市半陶陶瓷有限公司 | Kiln cooling chamber |
| CN107355318A (en) * | 2017-07-31 | 2017-11-17 | 安徽工程大学 | A kind of radiator cooler of concrete energy-saving milling machine |
| CN206688728U (en) * | 2017-05-12 | 2017-12-01 | 宿州学院 | A kind of use for laboratory water cooling box |
| CN207872204U (en) * | 2018-01-04 | 2018-09-18 | 江苏科泰检测技术服务有限公司 | Metal detection corrosivity container cooling body |
-
2018
- 2018-01-04 CN CN201810006921.7A patent/CN107930714A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286316B1 (en) * | 1998-12-21 | 2001-09-11 | Edwards Engineering Corp. | System for recovering and utilizing vapor |
| CN201181114Y (en) * | 2008-03-11 | 2009-01-14 | 曾舟华 | Circulation type natural convection efficient solar water heater |
| CN206131738U (en) * | 2016-08-16 | 2017-04-26 | 彭州市半陶陶瓷有限公司 | Kiln cooling chamber |
| CN206688728U (en) * | 2017-05-12 | 2017-12-01 | 宿州学院 | A kind of use for laboratory water cooling box |
| CN107355318A (en) * | 2017-07-31 | 2017-11-17 | 安徽工程大学 | A kind of radiator cooler of concrete energy-saving milling machine |
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| Title |
|---|
| 杨成可等: "汽车发动机构造与修理", 中国电力出版社, pages: 181 * |
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Application publication date: 20180420 |