CN220041277U - Air cooler model in hydraulic generator ventilation model test - Google Patents
Air cooler model in hydraulic generator ventilation model test Download PDFInfo
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- CN220041277U CN220041277U CN202320986792.9U CN202320986792U CN220041277U CN 220041277 U CN220041277 U CN 220041277U CN 202320986792 U CN202320986792 U CN 202320986792U CN 220041277 U CN220041277 U CN 220041277U
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- air cooler
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- pressing plate
- movable pressing
- hydraulic generator
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- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses an air cooler model in a hydraulic generator ventilation model test, which comprises the following components: and flanges are arranged on two sides of the shell. The air cooler model mainly comprises a shell, a fixed plate, a resistance layer, a movable pressing plate, a wind shield, a sliding rail and a stop nut, wherein the fixed plate is kept static relative to the shell, the sliding rail is moved along a slot of the shell to move the movable pressing plate, the compression amount of the resistance layer is controlled by changing the distance between the movable pressing plate and the fixed plate, the compactness and the resistance performance of the resistance layer are changed, and therefore the adjustment of the resistance coefficient of the air cooler model is conveniently realized.
Description
Technical Field
The utility model belongs to the technical field of hydraulic generator manufacturing, and particularly relates to an air cooler model in a hydraulic generator ventilation model test.
Background
The ventilation cooling problem of the hydraulic generator is always the key research direction of various factories and research institutions, and the test of the ventilation model after similar modeling is used as an effective method for analyzing the ventilation system of the real machine, thereby playing an important role in the ventilation problem research of large and medium-sized units.
The air cooler mounted on the stator frame is an important resistance component in the hydraulic generator ventilation system, and the pressure loss is important to pay attention to in the analysis of the ventilation system. According to the requirement of similar modeling of the ventilation model, the resistance component of the air cooler model is required to be consistent with the wind resistance coefficient of the real air cooler, so that the result of the ventilation model test has guiding significance. The vacuum air cooler consists of a shell, a cooling water partition plate, a cooling water pipe, radiating fins and the like, has a complex internal structure and higher manufacturing cost, and is difficult to obtain an air cooler model with the same wind resistance coefficient through simple scaling. However, for the hydro-generator ventilation model test, only the wind pressure reducing effect of the air cooler model is required to meet a specific relation with the real machine air cooler, and the air cooler model is not required to have heat dissipation capability, so that the simplification of the air cooler model is possible.
The traditional ventilation simulation device is mainly composed of a plurality of layers of thin pore plates and gauze, and the adjustability is poor. Therefore, a new model device is needed to solve the aforementioned problems.
For example, patent CN211127460U shows a ventilation simulator of an air cooler for a generator ventilation model, the wind resistance adjusting device includes a fixed adjusting plate, a movable adjusting plate and a regulator, the fixed adjusting plate and the movable adjusting plate are stacked and arranged, and a plurality of ventilation holes are formed in two plate bodies, the regulator regulates the upper and lower positions of the movable adjusting plate, changes the relative sizes of the ventilation holes, and further changes the resistance coefficient of the ventilation model. The disadvantage is that the regulator regulates the up-down position of the movable regulating plate to change the relative size of the vent hole, so as to change the resistance coefficient of the ventilation model, and the change is not smooth enough, so that the required numerical value is not easy to measure.
Disclosure of Invention
The utility model aims to overcome the difficulty of equivalent design of an air cooler model in a hydraulic generator ventilation model test and provides the air cooler model in the hydraulic generator ventilation model test, which has a simple structure and can conveniently adjust the resistance coefficient.
The aim of the utility model is achieved by the following technical scheme:
an air cooler model in a hydro-generator ventilation model test, the model comprising: a housing and a windage adjustment device.
The adjusting device is embedded in the shell and at least comprises a fixed plate, a resistance layer and a movable pressing plate, wherein the resistance layer is arranged between the fixed adjusting plate and the movable pressing plate.
Further, two threaded holes are formed in two ends of the movable pressing plate, the stop nuts are arranged on the sliding rails, and the movable pressing plate adjusts positions along the sliding grooves through the sliding rails.
Further, the resistance layer is located between the fixed plate and the movable pressing plate, and can be made of spongy compressible materials with air holes filled in the inside, so that the pressure of the gas can be reduced due to resistance, the resistance layer is enabled to be more compact by compressing the resistance layer, or the resistance layer is enabled to be more fluffy by loosening the resistance layer, and the effect of changing resistance is achieved.
Further, the shell is provided with two symmetrically arranged sliding grooves for installing the sliding rail, so that the movable pressing plate can move axially stably.
Further, external threads are machined at two ends of the sliding rail, two threaded holes are machined at two sides of the movable pressing plate, the movable pressing plate is mounted on the sliding rail through a stop nut, and the movable pressing plate can axially move on the sliding rail, so that the purpose of compressing a resistance layer is achieved better.
Further, the middle parts of the fixed plate and the movable pressing plate are grid-shaped wire meshes which are horizontally and vertically arranged, the diameter of each wire is smaller than or equal to 2mm, the wire meshes are used for compressing the resistance layer, the influence on the overcurrent gas is small, and the influence on the test result is reduced to the minimum.
Further, the wind shield covers the sliding groove, so that the influence on the test result due to the loss of air flow from two sides is prevented.
Furthermore, a round hole is formed in the wind shield and used for connecting and fixing the movable pressing plate.
Further, a plurality of bolt connection holes are formed in the flange on the shell and are used for realizing the matched connection between the cooler ventilation model and the generator ventilation model frame.
Compared with the prior art, the utility model has the beneficial effects that:
in the wind resistance adjusting device, the fixed plate keeps static relative to the shell, and the movable pressing plate is moved by moving the sliding rail along the slotting of the shell, so that the compression amount of the resistance layer can be controlled by changing the distance between the movable pressing plate and the fixed plate, the compactness and the resistance performance of the resistance layer are changed, and the adjustment of the resistance coefficient of the air cooler model is conveniently realized.
Compared with other traditional ventilation simulation devices, the wind resistance is adjusted to be linear, and the wind resistance coefficient is changed smoothly. The drag coefficient of the air cooler model can be conveniently set to be the same as that of the real air cooler, and if the drag coefficient of the real air cooler changes, the compression amount of the drag layer can be changed by moving the sliding rail so that the drag coefficient of the air cooler model is consistent with that of the real air cooler again without replacing any part.
Drawings
FIG. 1 is a front view of an embodiment of the present utility model;
FIG. 2 is a side view of an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 4 is an enlarged schematic view of section A of an embodiment of the present utility model;
the device comprises a shell, a flange, a fixed plate, a resistance layer, a threaded hole, a movable pressing plate, a sliding groove, a wind shield, a sliding rail and a stop nut, wherein the fixed plate is arranged on the shell, the flange is arranged on the shell, the fixed plate is arranged on the flange, the resistance layer is arranged on the resistance layer, the threaded hole is arranged on the resistance layer, the movable pressing plate is arranged on the resistance layer, the sliding groove is arranged on the resistance layer, the wind shield is arranged on the resistance layer, and the stop nut is arranged.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model are further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, 2, 3 and 4, there is shown an air cooler module in a hydro-generator ventilation module test, comprising: a housing 1, a windage adjusting device;
the windage adjusting device includes: the device comprises a fixed plate 3, a resistance layer 4, a movable pressing plate 6, a wind shield 8, a sliding rail 9 and a stop nut 10.
The shell 1 and the fixed plate 3 are welded into a whole, the shell 1 and the fixed plate 3 are horizontally placed, rectangular ventilation is upward at the moment, the sliding groove can be observed from the inside, the whole internal structure can be observed better, and the air cooler model structure assembly can be completed more easily.
The middle parts of the fixed plate 3 and the movable pressing plate 6 are grid-shaped wire meshes which are horizontally and vertically arranged, the diameter of the wire meshes is less than or equal to 2mm, the wire meshes are used for compressing the resistance layer, the influence on the overcurrent gas is small, and the influence on the test result is reduced to the minimum.
The assembly process is that the spongy compressible material is flatly paved on the fixed plate 3, then the movable pressing plate is placed on the spongy compressible material, and the two sliding rails 9 are screwed into threaded holes on the movable pressing plate after respectively penetrating through two sliding grooves from the outer side of the shell 1.
The two wind shields 8 are sleeved into the sliding rail 9 from the outer side respectively, and the direction of the wind shields 8 is adjusted so that the wind shields 8 cover the sliding groove 7, and the influence on the test result due to the loss of air flow from two sides is prevented.
The stop nut is used for connecting and fixing the wind shield and the movable pressing plate from the outer side, and the position of the movable pressing plate can be changed by adjusting the stop nut.
The air cooler module can be used in a connecting manner after being assembled.
The air cooler module was mounted to the test line using fixing bolts through bolt holes in the flange 2 of the housing 1.
The movable pressing plate can be arranged for a matching structure of the screw and the nut. One end of the screw rod is combined with the end part of the movable pressing plate, and the other end of the screw rod extends out of the shell 1. And nuts are arranged on the outer side of the shell 1 and sleeved on the sliding rails. The operator can accomplish the position control to the movable clamp plate through removing the slide rail.
The position of the movable pressing plate is adjusted through the sliding rail, the resistance layer is compressed to enable the resistance layer to be more compact, or the resistance layer is loosened to enable the resistance layer to be more fluffy, so that the effect of changing resistance is achieved, the movable pressing plate is fixed by screwing the stop nut until the air cooler model reaches the resistance coefficient required by the ventilation model test.
If the air cooler true resistance coefficient changes, repeating the steps can readjust the resistance coefficient of the air cooler model to be consistent with the air cooler true.
The drag coefficient of the air cooler model can be conveniently set to be the same as that of the real air cooler through the steps, and if the drag coefficient of the real air cooler is changed, the compression amount of the drag layer can be changed through moving the sliding rail, so that the drag coefficient of the air cooler model is consistent with that of the real air cooler again without replacing any component.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. An air cooler module for use in a hydraulic generator ventilation module test, said air cooler module comprising:
a shell (1) and a wind resistance adjusting device,
the wind resistance adjusting device is embedded in the shell (1);
the wind resistance adjusting device at least comprises a fixed plate (3), a resistance layer (4) and a movable pressing plate (6), wherein the resistance layer (4) is arranged between the fixed plate (3) and the movable pressing plate (6).
2. An air cooler module for use in a hydraulic generator ventilation module test according to claim 1, wherein said housing (1) is provided with at least two symmetrically arranged runners (7) for mounting slide rails (9).
3. The air cooler model in the hydraulic generator ventilation model test according to claim 2, wherein external threads are machined at two ends of the sliding rail (9), threaded holes (5) are machined at two ends of the movable pressing plate (6), one end of the sliding rail (9) is in threaded connection with the movable pressing plate (6), a stop nut (10) is arranged at the other end of the sliding rail, and the stop nut (10) is installed on the sliding rail (9).
4. An air cooler module for a hydraulic generator ventilation module test according to claim 2, wherein the chute (7) is covered by a wind deflector (8), and the wind deflector (8) is provided with a circular hole for passing through the slide rail.
5. An air cooler module for use in a hydraulic generator ventilation module test according to claim 1, wherein said resistance layer (4) is comprised of a spongy compressible material having air holes filled therein.
6. The air cooler model in the hydraulic generator ventilation model test according to claim 1, wherein the middle parts of the fixed plate (3) and the movable pressing plate (6) are mesh-shaped wire meshes, and the diameters of the mesh-shaped wire meshes are smaller than or equal to 2mm.
7. An air cooler module for use in a hydraulic generator ventilation module test according to claim 1, wherein said flange (2) of said housing (1) is provided with a plurality of bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986792.9U CN220041277U (en) | 2023-04-27 | 2023-04-27 | Air cooler model in hydraulic generator ventilation model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986792.9U CN220041277U (en) | 2023-04-27 | 2023-04-27 | Air cooler model in hydraulic generator ventilation model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041277U true CN220041277U (en) | 2023-11-17 |
Family
ID=88722168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320986792.9U Active CN220041277U (en) | 2023-04-27 | 2023-04-27 | Air cooler model in hydraulic generator ventilation model test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041277U (en) |
-
2023
- 2023-04-27 CN CN202320986792.9U patent/CN220041277U/en active Active
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