CN209138668U - Generator stator cooling water water sample tests pipeline cooling device - Google Patents
Generator stator cooling water water sample tests pipeline cooling device Download PDFInfo
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- CN209138668U CN209138668U CN201821504096.5U CN201821504096U CN209138668U CN 209138668 U CN209138668 U CN 209138668U CN 201821504096 U CN201821504096 U CN 201821504096U CN 209138668 U CN209138668 U CN 209138668U
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- water sample
- cooling
- heat
- sample test
- test pipeline
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- 238000001816 cooling Methods 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 239000000498 cooling water Substances 0.000 title claims abstract description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 230000017525 heat dissipation Effects 0.000 claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 17
- 238000004512 die casting Methods 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- -1 graphite alkene Chemical class 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000523 sample Substances 0.000 description 56
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 4
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003760 magnetic stirring Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229940068041 phytic acid Drugs 0.000 description 4
- 235000002949 phytic acid Nutrition 0.000 description 4
- 239000000467 phytic acid Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a kind of generator stator cooling water water samples to test pipeline cooling device, pipeline is tested including water sample, the cross section of the water sample test pipeline is semicircle, the water sample test pipeline has horizontal plane and arcwall face, the horizontal plane of the water sample test pipeline is together with heat-conducting plate die casting, water sample test pipeline detour on the heat-conducting plate is arranged, the heat-conducting plate is equipped with several radiator fans, the external sheath graphene heat dissipation film of arcwall face backwards to the one side of water sample test pipeline.The horizontal plane of water sample test pipeline can be such that water sample test pipeline contacts with heat-conducting plate well, improve heat transfer efficiency together with heat-conducting plate die casting in the utility model；Water sample is tested pipeline detour on heat-conducting plate and is arranged, and is able to extend pipeline, and then extend the heat dissipation time；Radiator fan is set at the back side of heat-conducting plate, the cooling of water sample can be accelerated, and in the external sheath graphene heat dissipation film of arcwall face, it being capable of further improving radiating effect.
Description
Technical Field
The utility model relates to a generator technical field especially relates to a generator is decided cold water sample test pipeline cooling device.
Background
In the generator, a generator stator cooling water system is used for cooling a generator stator winding and a high-voltage bushing on the outgoing line side, the system is a closed circulation system, and the water quality of the system is usually demineralized water and comes from a chemical water supply system. Before entering a closed circulating cooling water system of a generator, cooling water is subjected to ion exchange through a deionization device, then is stored in a fixed cold water tank, and is injected into a stator winding through a fixed cold water pump, and the temperature of inlet water of the fixed cold water is within the range of 35-46 ℃.
According to the requirements of GB/T12145-2016 (Water vapor quality Standard for thermal generating sets and steam power equipment), the quality of the internal cooling water needs to monitor the pH value, the conductivity and the content of copper ions. The copper ions are measured by an off-line instrument, while the pH and conductivity need to be monitored in real time by an on-line instrument. The pH value and the conductivity limit value required by the standard are under the condition that the temperature of a water sample is 25 ℃, in the actual operation process, the test temperature of a fixed cold water sample is usually about 40 ℃, and the highest test temperature can reach 50 ℃ under the high-temperature condition in summer.
Because the online instrument has the most accurate measurement result when the sample temperature is 25 ℃, when the temperature changes, the pH value and the conductivity of a water sample can change in a nonlinear way, and the instrument is required to perform temperature compensation at this time, but the data measured by the temperature compensation has larger deviation with the real data, thereby influencing the accuracy of the measurement result. In addition, a long-time high-temperature water sample can also damage the instrument measuring probe, so that the instrument has high failure rate and poor stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a generator is decided cold water sample test pipeline cooling device to reduce the temperature of deciding the cold water sample.
The utility model provides a cold water sample test pipeline cooling device is decided to generator, includes water sample test pipeline, the cross section of water sample test pipeline is semi-circular, water sample test pipeline has horizontal plane and arcwall face, the horizontal plane and the die-casting of water sample test pipeline are in the same place of heat-conducting plate, water sample test pipeline is in circuitous setting on the heat-conducting plate, the heat-conducting plate dorsad the one side of water sample test pipeline is equipped with a plurality of radiator fan, the outer cladding graphite alkene heat dissipation film of arcwall face.
According to the cooling device for the water sample testing pipeline of the fixed cooling water of the generator, the cross section of the water sample testing pipeline is semicircular, the horizontal plane of the water sample testing pipeline is die-cast with the heat conducting plate, and the contact area of the horizontal plane is larger, so that the water sample testing pipeline can be well contacted with the heat conducting plate, and the heat conducting efficiency is improved; the water sample testing pipeline is arranged on the heat conducting plate in a circuitous manner, so that the pipeline can be prolonged, the heat dissipation time is further prolonged, and the heat dissipation is facilitated; set up radiator fan at the back of heat-conducting plate, can accelerate the cooling of water sample, and at the outer cladding graphite alkene heat dissipation film of arcwall face, can further promote the radiating effect, finally make the generator decide the cold water sample and can fall to about 25 ℃ when reacing online instrument the temperature to guarantee the accuracy of pH value and conductivity test, avoid the high temperature water sample to cause the damage to instrument measuring probe.
Additionally, according to the utility model provides a cold water sample test pipeline cooling device is decided to generator can also have following additional technical characterstic:
further, the heat conducting plate is an aluminum heat conducting plate.
Furthermore, a plurality of radiator fans are arranged in a matrix mode on one surface of the heat-conducting plate, which is back to the water sample testing pipeline.
Furthermore, each cooling fan independently controls the on-off state respectively.
Further, all the cooling fans control the on-off state in a unified manner.
Furthermore, the power of each cooling fan is the same, and the power of each cooling fan is 1-1.5 kw.
Further, the thickness of the graphene heat dissipation film is 0.2-0.6 mm.
Furthermore, the side surface of the heat conducting plate is provided with a heat radiating groove.
Furthermore, the cooling device for the water sample test pipeline of the cooling water for the generator further comprises a temperature sensor and a controller, wherein the temperature sensor is arranged in the water sample test pipeline, the controller is respectively and electrically connected with the temperature sensor and the cooling fans, the cooling fans are divided into three groups, and the number of the cooling fans in each group of the cooling fans is equal; when the temperature detected by the temperature sensor is lower than 25 ℃, the controller controls the three groups of cooling fans to be completely closed; when the temperature detected by the temperature sensor is higher than 25 ℃ and lower than or equal to 26 ℃, the controller controls one of the three groups of cooling fans to be turned on, and the other two groups of cooling fans to be turned off; when the temperature detected by the temperature sensor is higher than 26 ℃ and lower than or equal to 30 ℃, the controller controls two groups of cooling fans in the three groups of cooling fans to be opened, and the other group of cooling fans is closed; when the temperature detected by the temperature sensor is higher than 30 ℃, the controller controls the three groups of cooling fans to be turned on completely.
Further, the graphene heat dissipation film is prepared by the following method:
taking the mass ratio of 5: 2, mixing the methyl triethoxysilane with a phytic acid aqueous solution, wherein the pH value of the phytic acid aqueous solution is 2.5, and hydrolyzing for 15-20 min under the action of magnetic stirring;
transferring the hydrolyzed reactant into a water bath at 60 ℃, and reacting for 30-45 min under magnetic stirring to obtain a sol mixture;
adding 10-15% of graphene powder and 0.5-1% of polyvinylpyrrolidone by mass into the mixture, and dispersing for 40-60 min under the action of ultrasound, wherein the temperature of the system is controlled at 20-25 ℃;
uniformly coating the product after the ultrasonic reaction on a substrate, wherein the coating thickness is 0.8-1 mm;
and (3) conveying the substrate into an oven, carrying out heat treatment for 45-60 min at the temperature of 250-300 ℃, and cooling to room temperature after the heat treatment is finished, thus obtaining the graphene heat dissipation film.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a cooling device of a generator chilled water sample test pipeline according to an embodiment of the present invention;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a schematic view of the backside structure of FIG. 1;
FIG. 4 is a schematic diagram of a water sample testing pipeline;
FIG. 5 is a schematic diagram of a partial cross-sectional structure of the water sample testing pipeline and the heat conducting plate.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1 to 5, an embodiment of the present invention provides a cooling device for a water sample testing pipeline of generator cooling water, including a water sample testing pipeline 10, the cross section of the water sample testing pipeline 10 is semicircular, the water sample testing pipeline has a horizontal plane 11 and an arc surface 12, the horizontal plane 11 of the water sample testing pipeline 10 is die-cast with a heat conducting plate 20, the water sample testing pipeline 10 is disposed on the heat conducting plate 20 in a circuitous manner, one side of the heat conducting plate 20, which faces away from the water sample testing pipeline 10, is provided with a plurality of cooling fans 30, an outer layer of the arc surface 12 is coated with a graphene cooling film 40, and preferably, the thickness of the graphene cooling film 40 is 0.2-0.6 mm.
The graphene heat dissipation film 40 can be prepared by the following method:
taking the mass ratio of 5: 2, mixing the methyl triethoxysilane with a phytic acid aqueous solution, wherein the pH value of the phytic acid aqueous solution is 2.5, and hydrolyzing for 15-20 min under the action of magnetic stirring;
transferring the hydrolyzed reactant into a water bath at 60 ℃, and reacting for 30-45 min under magnetic stirring to obtain a sol mixture;
adding 10-15% of graphene powder and 0.5-1% of polyvinylpyrrolidone by mass into the mixture, and dispersing for 40-60 min under the action of ultrasound, wherein the temperature of the system is controlled at 20-25 ℃;
uniformly coating the product after the ultrasonic reaction on a substrate, wherein the coating thickness is 0.8-1 mm;
and (3) conveying the substrate into an oven, carrying out heat treatment for 45-60 min at the temperature of 250-300 ℃, and cooling to room temperature after the heat treatment is finished, thus obtaining the graphene heat dissipation film.
Because the graphene is mutually overlapped in the matrix of the methyltriethoxysilane, an effective heat conduction path can be formed between the graphene, so that the finally prepared graphene heat dissipation film has higher heat conductivity, experimental tests show that the heat conductivity of the graphene heat dissipation film can reach 1.5W/(m.K), the heat dissipation performance is excellent, and the prepared graphene heat dissipation film is coated on the outer layer of the arc-shaped surface 12, so that the heat dissipation effect can be effectively improved.
Preferably, the heat conducting plate 20 is an aluminum heat conducting plate, and the aluminum material has excellent heat conducting performance. It is understood that the heat-conducting plate 20 of the present invention can be made of other materials with good thermal conductivity, and is not limited to aluminum heat-conducting plates.
Preferably, a plurality of radiator fan 30 is in the heat-conducting plate 20 is in the back of the one side of water sample test pipeline 10 is arranged in the matrix form, be arranged in the matrix form can be better carry out even heat dissipation. Wherein,
each of the heat dissipation fans 30 can independently control the on/off state, i.e., one of the heat dissipation fans 30 is turned on, and the other heat dissipation fan 30 is turned off. In addition, as an alternative embodiment, all the heat dissipation fans 30 may control the switch status in a unified manner, that is, all the heat dissipation fans 30 are turned on or turned off together. As for which kind of control mode is adopted, the selection can be carried out according to the actual condition of deciding cold water sample test pipeline. And the temperature of the generator cooling water sample can be accurately regulated and controlled by controlling the on-off state of the cooling fan 30, so that the temperature reaches about 25 ℃.
In addition, as an optional implementation manner, the cooling device for the water sample testing pipeline of the generator chilled water may further include a temperature sensor and a controller, the temperature sensor may be disposed in the water sample testing pipeline 10 and used for testing the actual temperature of the water sample, the controller may be disposed on the heat conducting plate 20 or other suitable positions, and the controller is electrically connected to the temperature sensor and the cooling fan 30, respectively. The heat dissipation fans 30 are divided into three groups, the number of the heat dissipation fans in each group of heat dissipation fans is equal, for example, 12 heat dissipation fans 30 are arranged in a rectangular manner of 3 rows and 4 columns, and the number of the heat dissipation fans in each group of heat dissipation fans is 4, in the specific implementation, the 4 heat dissipation fans 30 in the first row can be used as the first group, and so on, the 4 heat dissipation fans 30 in the second row can be used as the second group, and the 4 heat dissipation fans 30 in the third row can be used as the third group. It should be noted that, in the implementation, the dividing may not be performed in this manner, as long as the number of the cooling fans in each group of cooling fans is ensured to be equal.
When the temperature detected by the temperature sensor is lower than 25 ℃, the controller controls the three groups of cooling fans to be completely closed; when the temperature detected by the temperature sensor is higher than 25 ℃ and lower than or equal to 26 ℃, the controller controls one of the three groups of cooling fans (which can be any one of the first group, the second group and the third group) to be turned on, and the other two groups of cooling fans are turned off; when the temperature detected by the temperature sensor is higher than 26 ℃ and lower than or equal to 30 ℃, the controller controls two groups of cooling fans (any two groups of the first group, the second group and the third group) in the three groups of cooling fans to be turned on, and the other group of cooling fans to be turned off; when the temperature detected by the temperature sensor is higher than 30 ℃, the controller controls the three groups of cooling fans to be turned on completely. Through setting up the regulation mode, can more effectively realize the accurate control of temperature, guarantee that water sample temperature is about 25 ℃.
Preferably, the power of each of the heat dissipation fans 30 is the same, the power of the heat dissipation fan 30 is 1-1.5 kw, and the selection of the power can take account of the service life, the heat dissipation effect and the power consumption of the fan.
In addition, as an alternative embodiment, in order to further enhance the heat dissipation effect, a heat dissipation groove (not shown) may be disposed on a side surface of the heat conduction plate 20, and the heat dissipation groove may be disposed to increase the heat dissipation area, thereby further enhancing the heat dissipation effect.
According to the cooling device for the water sample testing pipeline of the fixed cold water of the generator, the cross section of the water sample testing pipeline is semicircular, the horizontal plane of the water sample testing pipeline is in die casting with the heat conducting plate, and the contact area of the horizontal plane is larger, so that the water sample testing pipeline can be well contacted with the heat conducting plate, and the heat conducting efficiency is improved; the water sample testing pipeline is arranged on the heat conducting plate in a circuitous manner, so that the pipeline can be prolonged, the heat dissipation time is further prolonged, and the heat dissipation is facilitated; set up radiator fan at the back of heat-conducting plate, can accelerate the cooling of water sample, and at the outer cladding graphite alkene heat dissipation film of arcwall face, can further promote the radiating effect, finally make the generator decide the cold water sample and can fall to about 25 ℃ when reacing online instrument the temperature to guarantee the accuracy of pH value and conductivity test, avoid the high temperature water sample to cause the damage to instrument measuring probe.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The utility model provides a cold water sample test pipeline cooling device is decided to generator, includes water sample test pipeline, its characterized in that, the cross section of water sample test pipeline is semi-circular, water sample test pipeline has horizontal plane and arcwall face, the horizontal plane and the heat-conducting plate die-casting of water sample test pipeline are in the same place, water sample test pipeline is in circuitous setting on the heat-conducting plate, the heat-conducting plate dorsad the one side of water sample test pipeline is equipped with a plurality of radiator fan, the outer cladding graphite alkene heat-dissipating membrane of arcwall face.
2. The generator chilled water sample test pipeline cooling device as claimed in claim 1, wherein the heat conducting plate is an aluminum heat conducting plate.
3. The cooling device for water sample testing pipeline of generator chilled water according to claim 1, wherein a plurality of said heat dissipation fans are arranged in a matrix on a side of said heat conducting plate facing away from said water sample testing pipeline.
4. The cooling device for the generator chilled water sample test pipeline according to claim 3, wherein each cooling fan independently controls the on-off state.
5. The cooling device for the generator chilled water sample test pipeline according to claim 3, wherein all the cooling fans uniformly control the on-off state.
6. The cooling device for the water sample test pipeline of the generator chilled water according to claim 3, wherein the power of each cooling fan is the same, and the power of each cooling fan is 1-1.5 kw.
7. The generator cooling water sample testing pipeline cooling device as claimed in claim 1, wherein the thickness of the graphene heat dissipation film is 0.2-0.6 mm.
8. The generator chilled water sample test pipeline cooling device as claimed in any one of claims 1 to 7, wherein the side surface of the heat conducting plate is provided with a heat dissipation groove.
9. The cooling device for the water sample test pipeline of the chilled water for the generator according to claim 1, further comprising a temperature sensor and a controller, wherein the temperature sensor is arranged in the water sample test pipeline, the controller is respectively electrically connected with the temperature sensor and the cooling fans, the cooling fans are divided into three groups, and the number of the cooling fans in each group of the cooling fans is equal; when the temperature detected by the temperature sensor is lower than 25 ℃, the controller controls the three groups of cooling fans to be completely closed; when the temperature detected by the temperature sensor is higher than 25 ℃ and lower than or equal to 26 ℃, the controller controls one of the three groups of cooling fans to be turned on, and the other two groups of cooling fans to be turned off; when the temperature detected by the temperature sensor is higher than 26 ℃ and lower than or equal to 30 ℃, the controller controls two groups of cooling fans in the three groups of cooling fans to be opened, and the other group of cooling fans is closed; when the temperature detected by the temperature sensor is higher than 30 ℃, the controller controls the three groups of cooling fans to be turned on completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504096.5U CN209138668U (en) | 2018-09-14 | 2018-09-14 | Generator stator cooling water water sample tests pipeline cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504096.5U CN209138668U (en) | 2018-09-14 | 2018-09-14 | Generator stator cooling water water sample tests pipeline cooling device |
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| CN209138668U true CN209138668U (en) | 2019-07-23 |
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| CN201821504096.5U Expired - Fee Related CN209138668U (en) | 2018-09-14 | 2018-09-14 | Generator stator cooling water water sample tests pipeline cooling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174225A (en) * | 2018-09-14 | 2019-01-11 | 国网江西省电力有限公司电力科学研究院 | Generator stator cooling water water sample tests pipeline cooling device |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174225A (en) * | 2018-09-14 | 2019-01-11 | 国网江西省电力有限公司电力科学研究院 | Generator stator cooling water water sample tests pipeline cooling device |
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Granted publication date: 20190723 |