Shading and anti-freezing device of direct air cooling unit

Abstract

The invention discloses a direct air cooling unit shading anti-freezing device, and relates to the technical field of direct air cooling systems of thermal power plants, the direct air cooling unit shading anti-freezing device comprises a main body unit, an air cooling island and a shading frame arranged above the air cooling island; and the shading anti-freezing unit comprises two driving assemblies arranged on the air cooling island, a supporting assembly arranged on the driving assemblies and connected with the shading frame, and a connecting assembly arranged on the shading frame. According to the direct air cooling unit shading and anti-freezing device, by arranging the shading and anti-freezing unit and utilizing a driving motor, a rotating shaft, a shading frame, a shading net and other structures on the shading and anti-freezing unit, solar radiant heat of an air cooling island is effectively shaded, the cooling effect of the air cooling island is improved, the unit back pressure is reduced, the unit load reception capacity is improved, and the unit auxiliary power consumption rate is reduced; and when the environment temperature is low, the height of the device is reduced, the density of the sunshade net is increased, the heat dissipation speed of the air cooling island is slowed down, and the effective anti-freezing effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of direct air cooling systems in thermal power plants, and in particular to a shading and antifreezing device for direct air cooling units. Background Art

[0002] A direct air-cooled unit refers to a generator set or refrigeration equipment that uses direct air cooling. The direct air cooling system consists of an exhaust device and an outdoor air cooling island.

[0003] At present, most direct air-cooling units have poor air-cooling effect in summer due to partial failure of the air-cooling fans due to long service life. At the same time, the strong sunlight and large radiant heat in summer cause the load of the air-cooling units to be blocked and the power consumption rate of the plant to soar. In winter, when the load of the air-cooling island is low and the air intake is small, in order to prevent the air-cooling island from freezing, either the air-cooling fan is reversed for warming, and the hot air on the upper part of the air-cooling island is sucked back to the lower part of the air-cooling fan for warming and anti-freezing, or the unit is restricted to reduce the load and increase the air intake flow. In severe cases, it is necessary to manually cover the condensation water pipe island of the air-cooling island with a quilt to prevent freezing. If the air-cooling system is used for warming, the power consumption rate of the plant will be increased. At the same time, there is the possibility of freezing and vacuum leakage, which poses a serious threat to the economic operation and safety of the unit and needs to be improved. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the fact that the above-mentioned existing direct air-cooling unit shading and anti-freezing device has high ambient temperature in summer, strong solar radiation heat in areas with high altitudes, and high exhaust pressure of direct air-cooling units with long operating years, which causes high condensation water temperature and cannot meet full load reception, resulting in load obstruction and high plant power consumption rate. In addition, in order to ensure anti-freezing in cold areas in winter, the air cooling system is warmed up, which will increase the plant power consumption rate and there is also the possibility of freezing and vacuum leakage, which poses a serious threat to the economic operation and safety of the unit, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a shading and antifreeze device for a direct air-cooling unit, and its purpose is to solve the problems that the ambient temperature is high in summer, the solar radiation heat is strong in areas with high altitudes, the exhaust pressure of direct air-cooling units with a long operating life is high, resulting in a high condensation water temperature, which cannot meet the full load reception, causing load obstruction and a large plant power consumption rate. In addition, in order to ensure antifreeze in cold areas in winter, the air cooling system is warmed up, which will increase the plant power consumption rate, and there is also the possibility of freezing and vacuum leakage, posing a serious threat to the economic operation and safety of the unit.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a main unit, including an air-cooling island, and a shading frame arranged above the air-cooling island;

[0008] The shade and antifreeze unit includes two driving assemblies arranged on the air-cooling island, a supporting assembly arranged on the driving assembly and connected to a shade frame, a connecting assembly arranged on the shade frame, and a rolling assembly arranged on the shade frame and connected to the connecting assembly.

[0009] As a preferred solution of the shading and antifreeze device of the direct air-cooling unit described in the present invention, the driving assembly includes a fixed plate arranged on the air-cooling island, a driving motor arranged on the fixed plate, and a gear 1 arranged on the output end of the driving motor.

[0010] As a preferred solution of the shading and antifreeze device of the direct air-cooling unit described in the present invention, the driving assembly also includes a fixed block arranged on the air-cooling island, a rotating shaft arranged on the fixed block, and a gear 2 arranged on the rotating shaft and meshing with gear 1.

[0011] As a preferred solution of the shading and antifreezing device for the direct air cooling unit of the present invention, a connecting block is arranged on the rotating shaft and located on one side of the driving motor, and a photoresistor is arranged on the connecting block.

[0012] As a preferred solution of the direct air cooling unit shading and antifreezing device of the present invention, the supporting assembly includes two sleeve blocks arranged on the rotating shaft, and a telescopic rod arranged on the sleeve blocks and connected to the shading frame.

[0013] As a preferred solution of the shading and antifreezing device for the direct air cooling unit described in the present invention, the connecting assembly includes two long strips arranged on the shading frame, and a long tooth plate arranged on the front of the long strips.

[0014] As a preferred solution of the direct air cooling unit shading and antifreeze device of the present invention, the rolling component also includes a slide groove arranged on the long plate, a slider arranged on the slide groove, and a winding shaft arranged between the two sliders.

[0015] As a preferred solution of the shading and antifreeze device for the direct air cooling unit described in the present invention, the rolling assembly also includes a rolling motor arranged on the slider on the front side, and a gear three arranged on the rolling motor and meshing with the long tooth plate.

[0016] As a preferred solution of the shade and antifreeze device of the direct air cooling unit described in the present invention, a winding shell is arranged between the two sliders and located outside the winding shaft, a torsion spring connected to the winding shell is arranged on the winding shaft, and a shade net connected to the shade frame is arranged on the winding shaft.

[0017] As a preferred solution of the shade and antifreeze device for the direct air cooling unit described in the present invention, the winding shell is provided with an entry and exit groove matching with the shade net, and the length of the long plate is the same as that of the long tooth pressure plate.

[0018] The beneficial effects of the present invention are as follows: by setting up a shade and antifreeze unit and utilizing the drive motor, rotating shaft, shade frame, shade net and other structures on the shade and antifreeze unit, the solar radiation heat of the air-cooling island can be effectively blocked, the cooling effect of the air-cooling island can be improved, the back pressure of the unit can be reduced, the load reception capacity of the unit can be improved, and the power consumption rate of the unit can be reduced. When the ambient temperature is low, the height of the device can be reduced and the density of the shade net can be increased, thereby slowing down the heat loss rate of the air-cooling island and playing an effective antifreeze role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle.

[0023] Figure 4 It is a schematic diagram of the structure of the connection assembly of the present invention.

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point C in the middle.

[0025] Figure 6 It is a structural schematic diagram of the winding shell of the present invention.

[0026] Figure 7 For the present invention Figure 6 Enlarged view of point D in the middle.

[0027] Figure 8 It is a structural schematic diagram of the shade net of the present invention.

[0028] Fig. 9 For the present invention Figure 8 Enlarged view of point E in the middle. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1, reference Figures 1 to 9 , which is the first embodiment of the present invention, provides a shading and antifreeze device for a direct air-cooling unit, which includes a main unit 100, including an air-cooling island 101, and a shading frame 102 arranged above the air-cooling island 101; a shading and antifreeze unit 200, including two driving components 201 arranged on the air-cooling island 101, a supporting component 202 arranged on the driving component 201 and connected to the shading frame 102, a connecting component 203 arranged on the shading frame 102, and a rolling component 204 arranged on the shading frame 102 and connected to the connecting component 203.

[0034] During use, due to the high ambient temperature in summer and the strong solar radiation heat in areas with high altitudes, the high exhaust pressure of direct air-cooling units with a long service life causes the condensation water temperature to be high, which cannot meet the full load reception, resulting in load obstruction and a high plant power consumption rate. In order to ensure antifreeze in cold areas in winter, air cooling system warming is generally adopted, which will increase the plant power consumption rate. At the same time, there is the possibility of freezing and vacuum leakage, which poses a serious threat to the economic operation and safety of the unit. By setting the drive component 201, the support component 202, the connection component 203 and the rolling component 204, the solar radiation heat of the air-cooling island 101 can be effectively blocked, the cooling effect of the air-cooling island 101 can be improved, the back pressure of the unit can be reduced, the load reception capacity of the unit can be improved, and the plant power consumption rate of the unit can be reduced. When the ambient temperature is low, the height of the device can be reduced and the density of the sunshade net can be increased to slow down the heat loss rate of the air-cooling island 101, thereby playing an effective antifreeze role.

[0035] Example 2, reference Figures 1 to 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the driving component 201 includes a fixed plate 201a arranged on the air-cooling island 101, a driving motor 201b arranged on the fixed plate 201a, and a gear 201c arranged on the output end of the driving motor 201b; wherein the driving motor 201b is fixedly connected to the fixed plate 201a, and the output shaft of the driving motor 201b passes through the fixed plate 201a and is fixedly connected to the gear 201c.

[0036] Furthermore, the driving assembly 201 also includes a fixed block 201d arranged on the air-cooling island 101, a rotating shaft 201e arranged on the fixed block 201d, and a gear 2 201f arranged on the rotating shaft 201e and meshing with the gear 1 201c; wherein, there are four fixed blocks 201d, which are respectively located at the four corners of the top of the air-cooling island 101, and the four fixed blocks 201d are divided into two groups on the left and right, and each group of fixed blocks 201d is fixedly connected to the rotating shaft 201e through bearings, and the gear 2 201f is sleeved and fixedly connected to the rotating shaft 201e. Since the gear 2 201f is meshed with the gear 1 201c, when the driving motor 201b starts to drive the gear 1 201c to rotate, the rotating shaft 201e and the gear 2 201f will rotate synchronously.

[0037] Furthermore, a connecting block 201e-1 is provided on the rotating shaft 201e and located on one side of the driving motor 201b, and a photoresistor 201e-2 is provided on the connecting block 201e-1; wherein, the driving motor 201b is controlled by the photoresistor 201e-2. Since the driving component 201 is provided with two groups, the two groups of driving motors 201b are respectively controlled by two photoresistors 201e-2, so that when the sun is in different directions, the photoresistors 201e-2 can sense sunlight.

[0038] Furthermore, the support assembly 202 includes two sleeve blocks 202a arranged on the rotating shaft 201e, and a telescopic rod 202b arranged on the sleeve blocks 202a and connected to the shade frame 102; wherein the sleeve blocks 202a are sleeved and fixedly connected to the rotating shaft 201e, the bottom end of the telescopic rod 202b is fixedly connected to the sleeve blocks 202a, and the top end of the telescopic rod 202b is rotatably connected to the bottom of the shade frame 102 through the rotating block, and the photoresistor 201e-2 can be driven by the driving motor 201b, the rotating shaft 201e and other structures. When strong sunlight is sensed, the drive motor 201b at the corresponding position is automatically started, and then the rotating shaft 201e is driven to rotate, and the overall angle of the shade frame 102 is adjusted, so as to effectively block the solar radiation heat of the air-cooled island 101, improve the cooling effect of the air-cooled island 101, reduce the back pressure of the unit, improve the load reception capacity of the unit and reduce the power consumption rate of the unit; through the setting of the telescopic rod 202b, when the ambient temperature is low, the height of the device can be reduced and the density of the sunshade net can be increased to slow down the heat loss rate of the air-cooled island 101, thereby playing an effective anti-freezing role.

[0039] When in use, when the photoresistor 201e-2 senses strong sunlight, the drive motor 201b at the corresponding position is started, and the drive motor 201b drives the gear 1 201c, the gear 2 201f, the rotating shaft 201e, the telescopic rod 202b and the shade frame 102 to rotate as a whole.

[0040] The shade frame 102 can be rotated 360° according to the angle of sunlight, ensuring that the air-cooled island 101 can be kept in the shade at all times, avoiding the sun's radiant heat and reducing the impact on the air; when the ambient temperature is low, the height of the shade frame 102 is lowered by the telescopic rod 202b, and the density of the shade net 204c-3 is increased to slow down the heat loss rate of the air-cooled island 101, which plays an effective anti-freezing role, and the four telescopic rods 202b are operated synchronously to keep the shade net 204c-3 moving up and down in the same plane, and adjust the height with the air-cooled island 101. It is adjusted upward to ensure that the air-cooled island 101 is completely in the shade, reducing the resistance of the shade net 204c-3 to the airflow, thereby reducing the power consumption rate of the plant; it moves downward to reduce the distance between the device and the air-cooled island 101, cover the hot air of the air-cooled island 101, and prevent the air-cooled island 101 from freezing in cold weather.

[0041] The remaining structures are the same as those of Example 1.

[0042] Example 3, reference Figures 1 to 9, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the connecting component 203 includes two long strips 203a arranged on the shade frame 102, and a long tooth plate 203b arranged on the front long strip 203a; wherein, the opposite sides of the two long strips 203a are fixedly connected to the front and back of the shade frame 102 respectively through a plurality of fixing blocks 201d, and the long tooth plate 203b is fixedly connected to the long strip 203a located on the front through a plurality of fixing blocks 201d.

[0043] Furthermore, the rolling component 204 also includes a slide groove 204a arranged on the long board 203a, a slider 204b arranged on the slide groove 204a, and a winding shaft 204c arranged between the two sliders 204b; wherein, the slide groove 204a is opened at the top of the long board 203a, the slider 204b and the slide groove 204a are slidably connected, and the winding shaft 204c is rotatably connected between the two sliders 204b through a bearing, and the shade net 204c-3 can be wound and unwound by rotating the winding shaft 204c.

[0044] Furthermore, the rolling assembly 204 also includes a rolling motor 204d arranged on the front slider 204b, and a gear three 204e arranged on the rolling motor 204d and meshing with the long tooth plate 203b; wherein the rolling motor 204d is fixedly connected to the front slider 204b, and the gear three 204e is fixedly connected to the output shaft of the rolling motor 204d.

[0045] Furthermore, a winding shell 204c-1 is arranged between the two sliders 204b and located outside the winding shaft 204c, a torsion spring 204c-2 connected to the winding shell 204c-1 is arranged on the winding shaft 204c, and a shade net 204c-3 connected to the shade frame 102 is arranged on the winding shaft 204c; wherein, the winding shell 204c-1 is fixedly connected between the two sliders 204b, and the winding shaft 204c is located inside the winding shell 204c-1, and the winding shaft 204c and the winding shell 204c-1 are arranged concentrically; the shade net 204c-3 is wound on the winding shaft 204c, and one end of the shade net 204c-3 passes through the winding shell 204c-1 and is connected to the shade frame 102. One side of the top of the shade frame 102 is fixedly connected; through the coordinated arrangement of the torsion spring 204c-2, the winding shaft 204c, and the winding shell 204c-1, when the shade net 204c-3 is wound and unwound, the shade net 204c-3 can always be kept in a taut state on the winding shaft 204c, so as to avoid the shade net 204c-3 automatically loosening during winding and unwinding and affecting the shading and antifreeze effect; the shade net 204c-3 is made of breathable, water-permeable and light-proof material, which can effectively block the solar radiation heat without causing the direction and resistance of the air flow of the air-cooling fan; in colder areas in winter, the shade net 204c-3 can be replaced with a quilt-like material to increase the temperature of the air-cooling island 101 and effectively prevent freezing.

[0046] Furthermore, the rolling shell 204c-1 is provided with an entry and exit groove 204c-4 which cooperates with the shade net 204c-3, and the long plate 203a has the same length as the long tooth pressure plate; wherein, one end of the shade net 204c-3 is pulled out of the rolling shell 204c-1 through the entry and exit groove 204c-4 and is fixedly connected to one side of the top of the shade frame 102.

[0047] When in use, the shade net 204c-3 is laid on the upper part of the shade frame 102, and the shade net 204c-3 is wound on the winding shaft 204c, and the gear three 204e is driven to rotate by the rolling motor 204d. The position of the winding shaft 204c is moved to lay the shade net 204c-3 on the frame. In rainy weather or when replacing the shade net 204c-3, the rolling motor 204d is operated to retract the shade net 204c-3.

[0048] The shade net 204c-3 is made of breathable, water-permeable and light-proof material, which can effectively block the solar radiation heat without causing the direction and resistance of the air flow of the air-cooling fan. In colder areas in winter, the shade net 204c-3 can be replaced with a quilt-like material to increase the temperature of the air-cooling island 101 and effectively prevent freezing.

[0049] By setting up the shade and antifreeze unit 200, the solar radiation heat in hot summer weather can be effectively reduced, the air cooling efficiency can be improved, and the power consumption rate of the plant can be reduced; in winter, the condensate temperature of the air cooling island 101 and the temperature of the vacuum pipe can be kept from freezing by adjusting the height of the device.

[0050] The remaining structure is the same as that of Example 2.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A shading and antifreezing device for a direct air-cooling unit, characterized in that: include, A main unit (100) comprises an air-cooling island (101) and a shading frame (102) arranged above the air-cooling island (101); A shade and antifreeze unit (200) comprises two drive assemblies (201) arranged on the air cooling island (101), a support assembly (202) arranged on the drive assembly (201) and connected to a shade frame (102), a connection assembly (203) arranged on the shade frame (102), and a rolling assembly (204) arranged on the shade frame (102) and connected to the connection assembly (203).

2. The shading and antifreezing device for direct air cooling unit according to claim 1, characterized in that: The driving assembly (201) comprises a fixing plate (201a) arranged on the air-cooling island (101), a driving motor (201b) arranged on the fixing plate (201a), and a gear 1 (201c) arranged on an output end of the driving motor (201b).

3. The shading and antifreezing device for a direct air cooling unit according to claim 2, characterized in that: The driving assembly (201) further comprises a fixed block (201d) arranged on the air-cooling island (101), a rotating shaft (201e) arranged on the fixed block (201d), and a gear 2 (201f) arranged on the rotating shaft (201e) and meshing with the gear 1 (201c).

4. The shading and antifreezing device for a direct air cooling unit according to claim 3, characterized in that: A connection block (201e-1) is provided on the rotating shaft (201e) and located on one side of the driving motor (201b), and a photoresistor (201e-2) is provided on the connection block (201e-1).

5. The shading and antifreezing device for a direct air cooling unit according to claim 4, characterized in that: The support assembly (202) comprises two sleeve blocks (202a) arranged on the rotating shaft (201e), and a telescopic rod (202b) arranged on the sleeve blocks (202a) and connected to the shade frame (102).

6. The shading and antifreezing device for a direct air cooling unit according to claim 5, characterized in that: The connection assembly (203) comprises two long strips (203a) arranged on the shade frame (102), and a long tooth plate (203b) arranged on the front side of the long strips (203a).

7. The shading and antifreezing device for a direct air cooling unit according to claim 6, characterized in that: The rolling assembly (204) further comprises a slide groove (204a) arranged on the long strip (203a), a slider (204b) arranged on the slide groove (204a), and a winding shaft (204c) arranged between the two sliders (204b).

8. The shading and antifreezing device for a direct air cooling unit according to claim 7, characterized in that: The rolling assembly (204) further comprises a rolling motor (204d) arranged on the front slider (204b), and a gear three (204e) arranged on the rolling motor (204d) and meshing with the long tooth plate (203b).

9. The shading and antifreezing device for a direct air cooling unit according to claim 8, characterized in that: A winding shell (204c-1) is arranged between the two sliders (204b) and outside the winding shaft (204c); a torsion spring (204c-2) connected to the winding shell (204c-1) is arranged on the winding shaft (204c); and a shade net (204c-3) connected to the shade frame (102) is arranged on the winding shaft (204c).

10. The shading and antifreezing device for a direct air cooling unit according to claim 9, characterized in that: The winding shell (204c-1) is provided with an entry and exit groove (204c-4) that matches the shade net (204c-3), and the long plate (203a) is the same length as the long tooth pressure plate.

Images