CN114870927A - Constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity - Google Patents
Constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity Download PDFInfo
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- CN114870927A CN114870927A CN202210632668.2A CN202210632668A CN114870927A CN 114870927 A CN114870927 A CN 114870927A CN 202210632668 A CN202210632668 A CN 202210632668A CN 114870927 A CN114870927 A CN 114870927A
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- water tank
- measuring
- intrinsic viscosity
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- 229920000139 polyethylene terephthalate Polymers 0.000 title abstract description 20
- 239000005020 polyethylene terephthalate Substances 0.000 title abstract description 20
- -1 polyethylene terephthalate Polymers 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000005057 refrigeration Methods 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052753 mercury Inorganic materials 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000009529 body temperature measurement Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000000498 cooling water Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
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- 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
- B01L7/02—Water baths; Sand baths; Air baths
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to the technical field of constant temperature devices, in particular to a constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity. The constant temperature device comprises a constant temperature water tank, a heating rod, a refrigeration circulating pipe and a temperature sensor, wherein the constant temperature water tank is used for storing water and installing a viscometer and providing a measuring place; the temperature control device is arranged outside the constant-temperature water tank and is respectively connected with the heating rod and the temperature sensor, the temperature sensor detects the temperature of water in the constant-temperature water tank in real time and transmits data to the temperature control device, and the temperature control device controls the heating rod to intermittently heat the water in the constant-temperature water tank; and the refrigerating compressor unit is connected with the refrigerating circulating pipe and used for driving a refrigerant to circularly flow in the refrigerating circulating pipe and cooling water in the constant-temperature water tank. The invention can automatically regulate and control the water temperature, has accurate temperature control, can ensure the constant temperature environment required in the process of measuring the intrinsic viscosity, and has more accurate measured intrinsic viscosity data. The invention can effectively solve the technical problems that the constant temperature cannot be automatically controlled, the temperature is not accurately controlled and the like in the conventional constant temperature water tank for measuring the intrinsic viscosity of PET.
Description
Technical Field
The invention relates to the technical field of constant temperature devices, in particular to a constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity.
Background
Intrinsic viscosity is an important index in polyethylene terephthalate (PET) products, the method for testing PET intrinsic viscosity in a laboratory at present mainly adopts a Ubbelohde viscosity method, and the temperature measurement is required to be constant when the intrinsic viscosity is measured.
In the laboratory measurement process, the constant-temperature water bath is mostly adopted for temperature control, the Ubbelohde viscometer is fixed by using an iron stand, and when the temperature of the thermometer in the water bath is observed to be higher, the ice is put in to cool so as to ensure the required constant temperature. On one hand, the method has fast water temperature heat dissipation and large temperature difference of the upper liquid level and the lower liquid level of the water bath, and on the other hand, the method needs manual operation, is inaccurate in temperature control, is difficult to ensure accurate constant temperature and is difficult to ensure the accuracy of measured data.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the constant temperature device for measuring the intrinsic viscosity of the PET, which can automatically regulate and control the water temperature, has accurate temperature control, can ensure the constant temperature environment required in the intrinsic viscosity measuring process, and has more accurate measured intrinsic viscosity data. The invention can effectively solve the technical problems that the constant temperature cannot be automatically controlled, the temperature is not accurately controlled and the like in the conventional constant temperature water tank for measuring the intrinsic viscosity of PET.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
in one aspect of the present invention, a thermostat for measuring intrinsic viscosity of PET includes:
the device comprises a constant-temperature water tank, a heating rod, a refrigeration circulating pipe and a temperature sensor, wherein the constant-temperature water tank is hollow inside, is provided with an opening at the top, is used for storing water and installing a viscometer and provides a measurement place;
the temperature control device is arranged outside the constant-temperature water tank and is respectively connected with the heating rod and the temperature sensor, the temperature sensor detects the temperature of water in the constant-temperature water tank in real time and transmits temperature data to the temperature control device, and the temperature control device controls the heating rod to intermittently heat the water in the constant-temperature water tank;
and the refrigerating compressor unit is arranged outside the constant-temperature water tank, is connected with the refrigerating circulating pipe and is used for driving a refrigerant to circularly flow in the refrigerating circulating pipe to cool water in the constant-temperature water tank.
By adopting the technical scheme, the viscometer is arranged in the constant-temperature water tank for measurement, the temperature sensor is used for monitoring the temperature of the water in the constant-temperature water tank in real time and feeding the temperature to the temperature control device, when the temperature is lower than a set value, the temperature control device controls the heating rod to heat the water, and the refrigeration compressor unit controls the refrigeration circulating pipe in the constant-temperature water tank to cool the water. The heating rod heats intermittently, and the refrigeration circulating pipe refrigerates continuously, and when the temperature of water is lower than the set value, the heating rod begins to heat, and when reaching the set temperature, the heating rod pauses to heat, thereby realizing the constancy and accurate temperature control of the temperature of water in the constant temperature water tank.
In some possible embodiments, an agitator is disposed inside the thermostatic water tank, an agitator motor is disposed outside the thermostatic water tank, and the agitator motor controls the agitator to rotate to ensure that the water temperature in the thermostatic water tank is balanced, so as to accelerate the flow of water in the thermostatic water tank, increase the heating rate or the cooling rate, balance the water temperature, and keep the water temperature in each position in the thermostatic water tank consistent.
In some possible embodiments, a first square case is arranged outside the thermostatic water tank and used for protecting the thermostatic water tank, a detachable cover plate is arranged above the first case, an openable and transparent sliding door is arranged on the front side of the first case and is convenient to install or maintain, and a transparent observation window is arranged on the side surface of the first case and is convenient to observe the internal condition of the thermostatic water tank; be equipped with thermowell and experimental window on the apron, be used for installing thermometer and viscometer respectively.
In some possible embodiments, the middle part of the refrigeration circulating pipe is a spiral coil pipe, and the spiral coil pipe is stacked at the bottom of the constant-temperature water tank, and the number of turns of the coil pipe is 5-10.
In some possible embodiments, the refrigeration cycle pipe is hollow, the pipe diameter is 5-10 mm, and the filling amount of the refrigerant in the refrigeration cycle pipe is 200-400 mL.
In some possible embodiments, a mercury thermometer is vertically installed in the thermowell, a measuring head of the mercury thermometer is immersed in water inside the constant-temperature water tank for measuring water temperature and adjusting parameters of a temperature control device, the water temperature is verified, the working temperature of the constant-temperature water tank is controlled to be (25 +/-0.05) DEG C, and the temperature control device adopts a high-precision temperature control table with the precision of 0.001 degree.
In some possible embodiments, a square second chassis is disposed outside the refrigeration compressor unit to protect the refrigeration compressor unit, and a plurality of heat dissipation holes are formed in a side wall of the second chassis to dissipate heat.
In some possible implementation modes, a digital display screen for displaying a temperature measurement value and a temperature set value, a temperature adjusting key, a refrigeration switch, a heating switch and a power switch are arranged on a panel of the temperature control device controller, so that the operation and the observation are convenient, and the accurate temperature control is realized.
The invention has the following beneficial effects:
the constant temperature device for measuring the PET intrinsic viscosity, provided by the invention, has the advantages of simple structure, low manufacturing cost, convenience in operation and accurate temperature control, is suitable for measuring the PET intrinsic viscosity, and provides accurate constant temperature for a viscometer in the measuring process. The heating rod is controlled to heat water by the temperature control device, the refrigeration compressor set is arranged to regulate and control the cold circulating pipe to cool the water, and the temperature sensor is arranged to monitor the water temperature in real time and feed the water temperature back to the temperature control device. The refrigeration circulating pipe continuously refrigerates, and the heating rod intermittently heats, so that the water temperature in the constant-temperature water tank is always controlled at a set temperature, a required constant-temperature environment is provided for the viscometer to measure the PET intrinsic viscosity, and the accuracy of measured data is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of a thermostat for measuring intrinsic viscosity of PET according to the present invention.
The numbering in the figures illustrates: 1. a constant temperature water tank; 11. a heating rod; 12. a refrigeration circulating pipe; 13. a temperature sensor; 14. a stirrer; 2. a temperature control device; 21. a digital display screen; 22. a temperature adjusting button; 23. a refrigeration switch; 24. a heating switch; 25. a power switch; 3. a refrigeration compressor train; 4. a stirring motor; 5. a first chassis; 51. a cover plate; 52. sliding the door; 53. an observation window; 54. a thermowell; 55. an experimental window; 6. a second chassis; 7. an illuminating lamp.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the product of the present invention is used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In one embodiment of the invention, as shown in fig. 1, the thermostatic device for measuring PET intrinsic viscosity comprises a thermostatic water tank 1, a temperature control device 2 and a refrigeration compressor set 3. Wherein, the constant temperature water tank 1 is hollow and has an opening at the top, is used for storing water and installing a viscometer, and provides a measuring place. The inside of the constant temperature water tank 1 is provided with a heating rod 11, a refrigeration circulating pipe 12 and a temperature sensor 13, and the inside of the refrigeration circulating pipe 12 is hermetically filled with a refrigerant. The constant-temperature water tank 1 is made of transparent glass materials, is resistant to high and low temperatures and corrosion, is high in structural strength, and facilitates experimenters to observe the conditions inside the constant-temperature water tank 1.
And the temperature control device 2 is arranged outside the constant-temperature water tank 1 and is respectively connected with the heating rod 11 and the temperature sensor 13. The temperature sensor 13 detects the temperature of water in the constant temperature water tank 1 in real time, and transmits temperature data to the temperature control device 2, and the temperature control device 2 intermittently heats the water in the constant temperature water tank 1 by controlling the heating rod 11.
And the refrigerating compressor unit 3 is arranged outside the constant-temperature water tank 1, is connected with the refrigerating circulating pipe 12, and is used for driving a refrigerant to circularly flow in the refrigerating circulating pipe 12 to cool water in the constant-temperature water tank 1.
In this embodiment, a temperature control device is provided to control the heating rod 11 in the constant temperature water tank 1 to heat water, the refrigeration compressor unit 3 is provided to control the refrigeration circulating pipe 12 in the constant temperature water tank 1 to cool water, and the temperature sensor 13 is provided in the constant temperature water tank 1 to monitor the water temperature in real time and feed back the water temperature to the temperature control device 2 to control the operating state of the heating rod 11. The refrigerating compressor unit 3 continuously works to drive the refrigerating circulating pipe 12 to continuously refrigerate, the heating rod 11 intermittently heats, when the water temperature is lower than a set value, the heating rod 11 starts heating, and when the set temperature is reached, the heating rod 11 suspends heating, so that the constant and accurate temperature control of the water temperature in the constant-temperature water tank 1 is realized, and the accuracy of the intrinsic viscosity measurement data is ensured.
Specifically, in the present embodiment, referring to fig. 1, an agitator 14 with an agitating blade is further vertically provided inside the constant-temperature water tank 1, and an agitating motor 4 connected to the agitator 14 is provided outside the constant-temperature water tank 1. The stirring motor 4 has a power of 50W to ensure that the stirring motor 4 can work for 24 hours. The stirring motor 4 controls the stirrer 14 to rotate and stir, so that the flow of water in the constant-temperature water tank 1 is accelerated, the heating rate or the cooling rate is increased, and the water temperature in each position in the constant-temperature water tank 1 is ensured to be balanced and consistent.
Referring to fig. 1, the middle portion of the refrigeration circulation pipe 12 is a spiral coil, and the spiral coil is stacked and arranged at the bottom of the thermostatic water tank 1, and the number of turns of the coil is 9. The inside of the refrigeration circulating pipe 12 is hollow, the pipe diameter is 6mm, the refrigeration circulating pipe is made of copper pipe materials with nickel plating treatment on the surface, and the filling amount of a refrigerant in the refrigeration circulating pipe 12 is 300 mL. The temperature control device 2 uses a high-precision temperature control table with a precision of 0.001. The power of the heating rod is 1200W, a heating resistance wire with a U-shaped structure is adopted, and structures such as a rod shape, a spiral shape and the like can also be adopted without limitation.
As shown in fig. 1, a first housing 5 having a square shape is provided outside the constant-temperature water bath 1 to protect the constant-temperature water bath 1. The detachable cover plate 51 is arranged above the first case 5 to reduce water temperature heat dissipation, the transparent sliding door 52 which can be opened is arranged on the front side (the side close to an operator) to facilitate installation or maintenance, and the transparent observation window 53 is arranged on the side to facilitate observation of the internal condition of the constant temperature water tank 1. The cover plate 51 is provided with at least one thermowell 54 and a plurality of test windows 55, the test windows 55 being used for vertically mounting the viscometer downward. A mercury thermometer is vertically arranged in the thermometer jack 54 downwards through a rubber plug, the measuring range of the mercury thermometer is 24-26 ℃, the precision is 0.01 ℃, a measuring head of the mercury thermometer is immersed in the water in the constant-temperature water tank 1 and used for measuring the water temperature and adjusting the parameters of the temperature control device 2, the water temperature is checked, and the working temperature of the constant-temperature water tank 1 is controlled to be (25 +/-0.05) DEG C. The illuminating lamps 7 are symmetrically arranged above the inside of the first case 5 and used for illuminating, visibility in the first case 5 is increased, and the measurement condition of the viscometer can be observed clearly by an operator.
As shown in fig. 1, a square second casing 6 is disposed outside the refrigeration compressor unit 3 for protecting the refrigeration compressor unit 3, and a plurality of heat dissipation holes are disposed on a side wall of the second casing 6 for dissipating heat. Detachably is connected with the connecting plate between first quick-witted case 5 and the second machine case 6, and the transportation of being convenient for dismantles the connecting plate when refrigeration compressor unit 3 during operation, avoids compressor vibration to influence the test result of viscometer in the constant temperature water tank 1. A plurality of supporting legs are respectively arranged below the first case 5 and the second case 6, and the supporting and stabilizing effects are achieved.
As shown in fig. 1, the temperature control device 2 is disposed on the top of the second casing 6, and the stirring motor 4 is disposed behind the top of the first casing 5, avoiding the positions of the thermowell 54 and the experimental window 55 in the front of the cover plate 51, so as to save installation space and improve space utilization. The panel of the controller of the temperature control device 2 is provided with a digital display screen 21 for displaying a temperature measurement value and a temperature set value, a temperature adjusting key 22, a refrigeration switch 23, a heating switch 24 and a power switch 25, so that an operator can observe the viscometer conveniently and accurately control the water temperature.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the invention is not to be construed as limited to those embodiments. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art should be within the scope of protection defined by the claims.
Claims (8)
1. A constant temperature device for measuring PET intrinsic viscosity is characterized by comprising:
the device comprises a constant-temperature water tank (1), a heating rod (11), a refrigeration circulating pipe (12) and a temperature sensor (13) are arranged in the constant-temperature water tank (1), the constant-temperature water tank is hollow, is provided with an opening at the top, is used for storing water and installing a viscometer and provides a measuring place, and a refrigerant is hermetically filled in the refrigeration circulating pipe (12);
the temperature control device (2) is arranged outside the constant-temperature water tank (1) and is respectively connected with the heating rod (11) and the temperature sensor (13), the temperature sensor (13) detects the water temperature in the constant-temperature water tank (1) and transmits temperature data to the temperature control device (2), and the temperature control device (2) controls the heating rod (11) to intermittently heat the water in the constant-temperature water tank (1);
and the refrigerating compressor unit (3) is arranged outside the constant-temperature water tank (1), is connected with the refrigerating circulating pipe (12), and is used for driving a refrigerant to circularly flow in the refrigerating circulating pipe (12) to cool water in the constant-temperature water tank (1).
2. The constant temperature device for measuring the PET intrinsic viscosity according to claim 1, wherein a stirrer (14) is arranged inside the constant temperature water tank (1), a stirring motor (4) is arranged outside the constant temperature water tank (1), and the stirring motor (4) controls the stirrer (14) to rotate so as to ensure the water temperature in the constant temperature water tank (1) to be balanced.
3. The constant temperature device for measuring the PET intrinsic viscosity according to claim 1, wherein a square first case (5) is arranged outside the constant temperature water tank (1), a detachable cover plate (51) is arranged above the first case (5), a sliding door (52) which can be opened and is transparent is arranged on the front surface, a transparent observation window (53) is arranged on the side surface, and a thermowell (54) and an experimental window (55) are arranged on the cover plate (51).
4. The constant temperature device for measuring the intrinsic viscosity of PET as claimed in claim 1, wherein the middle part of the refrigeration circulating pipe (12) is a spiral coil pipe, the spiral coil pipe is stacked at the bottom of the constant temperature water tank (1), and the number of turns of the coil pipe is 5-10.
5. The constant temperature device for measuring the intrinsic viscosity of PET as claimed in claim 1, wherein the inside of the refrigeration circulating pipe (12) is hollow, the pipe diameter is 5-10 mm, and the filling amount of the refrigerant in the refrigeration circulating pipe (12) is 200-400 mL.
6. The thermostat device for measuring the intrinsic viscosity of PET as claimed in claim 1, characterized in that a mercury thermometer is vertically installed in the thermowell (54), and a measuring head of the mercury thermometer is immersed in water inside the thermostatic water tank (1) for measuring the water temperature.
7. The constant temperature device for measuring the intrinsic viscosity of PET as claimed in claim 1, wherein a second square case (6) is arranged outside the refrigeration compressor unit (3), and a plurality of heat dissipation holes are formed in the side wall of the second case (6).
8. The constant temperature device for measuring the PET intrinsic viscosity according to claim 1, wherein a digital display screen (21) for displaying the temperature measurement value and the temperature setting value, a temperature adjusting button (22), a refrigeration switch (23), a heating switch (24) and a power switch (25) are arranged on a control instrument panel of the temperature control device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632668.2A CN114870927A (en) | 2022-06-06 | 2022-06-06 | Constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632668.2A CN114870927A (en) | 2022-06-06 | 2022-06-06 | Constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity |
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| Publication Number | Publication Date |
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| CN114870927A true CN114870927A (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210632668.2A Pending CN114870927A (en) | 2022-06-06 | 2022-06-06 | Constant temperature device for measuring PET (polyethylene terephthalate) intrinsic viscosity |
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| CN (1) | CN114870927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117205984A (en) * | 2023-11-07 | 2023-12-12 | 江苏生益特种材料有限公司 | High-precision constant-temperature water tank matched with monitoring equipment and used for detection of measurement sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324857B1 (en) * | 1998-12-01 | 2001-12-04 | Julabo Labortechnik Gmbh | Laboratory thermostat |
| CN202464447U (en) * | 2012-03-09 | 2012-10-03 | 上海理工大学 | Constant temperature water tank |
| CN215853030U (en) * | 2021-08-20 | 2022-02-18 | 泰安德美机电设备有限公司 | Liquid constant temperature mixing liquid storage tank |
-
2022
- 2022-06-06 CN CN202210632668.2A patent/CN114870927A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324857B1 (en) * | 1998-12-01 | 2001-12-04 | Julabo Labortechnik Gmbh | Laboratory thermostat |
| CN202464447U (en) * | 2012-03-09 | 2012-10-03 | 上海理工大学 | Constant temperature water tank |
| CN215853030U (en) * | 2021-08-20 | 2022-02-18 | 泰安德美机电设备有限公司 | Liquid constant temperature mixing liquid storage tank |
Non-Patent Citations (1)
| Title |
|---|
| 岑超南: "《现代制瓶技术和质量检验》", 31 October 1983, 轻工业出版社, pages: 44 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117205984A (en) * | 2023-11-07 | 2023-12-12 | 江苏生益特种材料有限公司 | High-precision constant-temperature water tank matched with monitoring equipment and used for detection of measurement sensor |
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