An adjustable jet impingement injection device for cooling

Abstract

The present invention relates to an adjustable jet impingement spraying device for cooling, which comprises a cooling box body. A plurality of objects to be cooled are arranged at the bottom inside the cooling box body. The device further comprises a jet box body connected above the cooling box body. The lower end of the jet box body is open and the upper end is equipped with a box cover. A jet plate that slides up and down is arranged inside the jet box body. A sealed pressure chamber is formed between the jet plate and the box cover. An inlet pipe communicating with the pressure chamber is arranged on the jet box body. A plurality of nozzles located above the objects to be cooled are formed on the jet plate. The nozzles are downward-facing flared mouths. The device further comprises an outlet pipe vertically passing through the box cover and the jet plate. By adjusting the up-and-down position of the jet plate, the height adjustment between the jet plate and the objects to be cooled is achieved. By adjusting the up-and-down position of the sealing cover plate, the angle of the nozzles is adjusted, so as to adjust the angle of the sprayed coolant, improve the cooling effect, reduce energy consumption, and play a role in energy conservation and emission reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of jet devices, and specifically refers to an adjustable jet impingement jet device for cooling. Background Art

[0002] With the development of information and communication technology, the power consumption per cabinet in the data center is gradually increasing. The cooling demand in the data center is also gradually increasing. Compared with the inefficient cooling method of air-cooled air conditioners that cool the environment first and then the equipment, liquid cooling technology directly exchanges heat between the coolant and the heat-generating devices, reducing the path cold loss. It is a more precise cooling method. The relatively high supply and return liquid temperature design of the liquid cooling system can make full use of natural cold sources for heat dissipation, realizing efficient and green cooling, and is gradually applied and popularized in the data center field.

[0003] In liquid cooling technology, the coolant is sprayed downward from the nozzle onto the target to be cooled, so as to achieve rapid heat exchange, and then the coolant that has completed heat exchange is pumped out through the outlet pipe. However, with the continuous adjustment of the current product structure, the size and heat generation of the target to be cooled are not fixed, so it is necessary to adjust the spraying angle of the nozzle to adapt to different targets to be cooled. The current jet device cannot adjust the spraying angle well. Summary of the Invention

[0004] The present invention aims at the deficiencies of the prior art and provides an adjustable jet impingement jet device for cooling that has a fast start, high efficiency, safety and reliability, and convenient operation.

[0005] The present invention is realized through the following technical solutions. An adjustable jet impingement jet device for cooling is provided, including a cooling box body. A plurality of targets to be cooled are arranged at the bottom inside the cooling box body. It also includes a jet box body connected above the cooling box body. The jet box body has an opening at the lower end and a box cover is installed at the upper end. A jet plate that slides up and down is installed inside the jet box body. A sealed pressure chamber is formed between the jet plate and the box cover. An inlet pipe communicating with the pressure chamber is provided on the jet box body. A plurality of nozzles located above the targets to be cooled are opened on the jet plate. The nozzles are downward-facing flared mouths. It also includes an outlet pipe vertically passing through the box cover and the jet plate. The outlet pipe is provided with a first threaded portion threadedly connected to the box cover and a second threaded portion threadedly connected to the jet plate. The helix direction of the first threaded portion is the same as that of the second threaded portion, and the pitch of the second threaded portion is greater than that of the first threaded portion.

[0006] As an optimization, a plurality of arc-shaped diversion grooves evenly distributed along the circumference of the nozzles are opened on the upper end surface of the jet plate.

[0007] As an optimization, a sealing cover plate is installed above the nozzles. It also includes a sealing cover plate adjustment mechanism for adjusting the up and down position of the sealing cover plate relative to the jet plate.

[0008] As an optimization, the cover plate adjusting mechanism includes a cover plate shaft fixedly connected to the upper end surface of the cover plate and a cover plate piston fixedly connected to the cover plate shaft. An adjusting plate is fixedly connected above the jet plate. The cover plate shaft passes through the adjusting plate, and a circular counterbore adapted to the cover plate piston is formed in the adjusting plate. A piston chamber cover plate is bolted to the upper end of the circular counterbore. A sealed piston chamber is formed between the piston chamber cover plate and the cover plate piston. The piston chamber is communicated with an adjusting pipe through a hose, and an adjusting screw is threadedly connected to the end of the adjusting pipe.

[0009] As an optimization, a rectangular opening is formed in the middle of the box cover, and an adjusting pipe mounting plate is bolted to the rectangular opening. The adjusting pipe is fixedly connected to the adjusting pipe mounting plate.

[0010] As an optimization, a spring is installed in the circular counterbore below the cover plate piston.

[0011] As an optimization, the cover plate is a circular plate and is parallel to the jet plate, and the diameter of the cover plate is 2-5 times the diameter of the upper end of the nozzle.

[0012] As an optimization, the pitch of the second threaded portion is 3-10 times the pitch of the first threaded portion.

[0013] As an optimization, the lower end of the jet box body is inserted into the cooling box body, and a connecting ear plate is fixedly connected to the side surface of the jet box body. The connecting ear plate is bolted to the upper end surface of the cooling box body.

[0014] As an optimization, there are two outlet pipes, and synchronous belt wheels located above the box cover are fixedly connected to the outlet pipes. The two synchronous belt wheels are connected by a synchronous belt.

[0015] The beneficial effects of the present invention are as follows: An adjustable jet impact spraying device for cooling of the present invention realizes the height adjustment with respect to the target to be cooled by adjusting the up and down positions of the jet plate, and at the same time can realize the adjustment of the lower end position of the outlet pipe, thereby effectively controlling the liquid level height inside. By adjusting the up and down positions of the cover plate, the nozzle angle is adjusted, so as to adjust the angle of the sprayed coolant to adapt to different cooling requirements, improve the cooling effect, and play a role in energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded schematic view of the present invention;

[0017] Figure 2 is a front view of the present invention;

[0018] Figure 3 is a side view of the present invention;

[0019] Figure 4 is the present invention Figure 3 in the sectional view taken along line A-A;

[0020] Figure 5 For the present invention Figure 3 Cross-sectional view taken along line B-B in the present invention;

[0021] Figure 6 For the present invention Figure 5 Partially enlarged view of the nozzle position in the present invention;

[0022] Figure 7 Schematic structural view of the jet plate and the adjusting plate of the present invention;

[0023] Figure 8 Top view of the jet plate of the present invention;

[0024] Figure 9 Schematic structural view of the adjusting plate of the present invention;

[0025] Figure 10 Top view of the adjusting plate of the present invention;

[0026] Figure 11 Schematic structural view of the sealing cover plate of the present invention;

[0027] As shown in the figure:

[0028] 1. Cooling box body, 2. Jet box body, 3. Box cover, 4. Jet plate, 5. Target to be cooled, 6. Nozzle, 7. Arc-shaped diversion groove, 8. Outlet pipe, 9. Adjusting plate, 10. Sealing cover plate, 11. Cover plate shaft, 12. Cover plate piston, 13. Piston chamber cover plate, 14. Adjusting pipe mounting plate, 15. Adjusting pipe, 16. Adjusting screw, 17. Piston chamber connecting pipe, 18. Spring, 19. Circular counterbore, 20. Adjusting plate support column, 21. Inlet pipe. Detailed implementation manners

[0029] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific implementation manners.

[0030] As Figures 1 to 11 shown, an adjustable jet impact spraying device for cooling of the present invention includes a cooling box body 1, and a plurality of targets 5 to be cooled are arranged at the bottom inside the cooling box body 1. The jet box body 2 is also a rectangular box body, the lower end of the jet box body 2 is open, and the lower end of the jet box body 2 is inserted into the cooling box body 1. A connecting ear plate is fixedly connected to the side surface of the jet box body 2, and the connecting ear plate is bolted to the upper end surface of the cooling box body 1.

[0031] As Figure 4 、 5 shown, the jet box body 1 is also a rectangular box body, the lower end of the jet box body 1 is open, and the lower end of the jet box body 1 is inserted into the cooling box body 1. A connecting ear plate is fixedly connected to the side surface of the jet box body 1, and the connecting ear plate is bolted to the upper end surface of the cooling box body 1.

[0032] The upper end of the jet box body 1 is equipped with a box cover 3. The box cover 3 is connected by bolts, so it can be opened for maintenance and adjustment. Inside the jet box body 1, there is a jet plate 4 that slides up and down. The jet plate 4 is a horizontally arranged rectangular plate, and its outer circle fits with the inner wall of the jet box body 1 to achieve sealing at the contact position. To improve the sealing effect, two circles of sealing ring grooves are provided on the outer circle of the jet plate 4, and sealing rings are installed in the sealing ring grooves to achieve the sealing effect.

[0033] A plurality of nozzles 6 are opened on the jet plate 4 above the target 5 to be cooled. The nozzles 6 are downward-facing flared mouths. For the cross-sectional shape of the nozzles 6, see Figure 5 A sealed pressure chamber is formed between the jet plate 4 and the box cover 3. An inlet pipe 21 communicating with the pressure chamber is provided on the jet box body 1. The coolant enters the pressure chamber through the inlet pipe 21, filling the inside with high-pressure coolant. The coolant is sprayed downward onto the target 5 to be cooled through the flared nozzles 6. Since the sprayed coolant is divergent, when the height of the jet plate 4 increases, the area of its contact position with the target 5 to be cooled increases, and it can adapt to a large-area target 5 to be cooled.

[0034] It also includes an outlet pipe 8 vertically passing through the box cover 3 and the jet plate 4. The upper end of the outlet pipe 8 is connected to the inlet of the vacuum pump through a rotary joint and a hose. Since the coolant presents a certain liquid level in the cooling box body 1, the lower end of the outlet pipe 8 pumps out the coolant, keeping the liquid level height in the cooling box body 1 within a suitable range.

[0035] The outlet pipe 8 is provided with a first threaded portion threadedly connected to the box cover 3 and a second threaded portion threadedly connected to the jet plate 4. The helix direction of the first threaded portion is the same as that of the second threaded portion, and the pitch of the second threaded portion is greater than that of the first threaded portion.

[0036] When it is necessary to adjust the height of the jet plate 4, rotate the outlet pipe 8. Since the outlet pipe 8 is connected to the box cover 3 through the first threaded portion, when the outlet pipe 8 rotates, it also moves up and down by itself. At the same time, since the outlet pipe 8 is connected to the jet plate 4 through the second threaded portion, the jet plate 4 also moves up and down. And because the helix direction of the first threaded portion is the same as that of the second threaded portion, and the pitch of the second threaded portion is greater than that of the first threaded portion, the moving direction of the outlet pipe 8 is opposite to that of the jet plate 4.

[0037] For example, both the first threaded portion and the second threaded portion are right-handed threads. When the outlet pipe 8 rotates clockwise, the outlet pipe 8 moves downward. Since the jet plate 4 cannot rotate and the pitch of the second threaded portion is larger, the jet plate 4 moves upward.

[0038] After the jet plate 4 moves upward, the area of its contact position with the target 5 to be cooled increases, achieving large-area contact. However, a large contact area will result in a decrease in the impact force on the target 5 to be cooled. Therefore, in this application, the moving direction of the outlet pipe 8 is opposite to that of the jet plate 4, so that the outlet pipe 8 is synchronously moved downward to lower the internal liquid level, facilitating the impact of the coolant on the target 5 to be cooled and preventing the impact force from not being transmitted to the target 5 to be cooled due to too high a liquid level.

[0039] In addition, the adjustment range of the liquid level height should be less than that of the jet plate 4. Therefore, the pitch of the second threaded portion is 3 - 10 times that of the first threaded portion. In this embodiment, the pitch of the first threaded portion is 1 mm, the pitch of the second threaded portion is 5 mm, and the multiple is 5. When the outlet pipe 8 rotates clockwise for one week, the outlet pipe 8 moves downward by 1 mm, and the jet plate 4 moves upward by 4 mm.

[0040] In order to achieve the rapid discharge of the coolant and simultaneously realize the horizontal up and down movement of the jet plate 4, two outlet pipes 8 are provided in this embodiment. Synchronous pulleys (not shown in the figure) are fixedly connected to the outlet pipes 8 above the box cover 3, and the two synchronous pulleys are connected by a synchronous belt, so as to realize the synchronous rotation of the two outlet pipes 8.

[0041] As Figure 8 shown, a plurality of arc-shaped diversion grooves 7 are evenly distributed in the circumferential direction of the nozzle 6 on the upper end surface of the jet plate 4. Part of the coolant enters the nozzle 6 tangentially from the arc-shaped diversion grooves 7, thereby driving the liquid in the nozzle 6 to diverge circumferentially, so as to make the ejected coolant more divergent.

[0042] In order to adjust the ejection angle, that is, the divergence degree, a sealing cover plate 10 is installed above the nozzle 6. The sealing cover plate 10 is a circular plate and is parallel to the jet plate 4. The diameter of the sealing cover plate 10 is 2 - 5 times the upper end diameter of the nozzle 6. As Figure 6 shown, therefore, there are two sources of coolant in the nozzle 6. One part is the coolant directly ejected downward from above, and the divergence degree of this part alone is small. The other part comes from the tangential entry of the arc-shaped diversion grooves 7, so as to converge with the first part and increase its divergence degree.

[0043] Therefore, by adjusting the vertical position of the sealing cover plate 10 relative to the jet plate 4, the ratio of the two parts of the liquid can be adjusted. When the sealing cover plate 10 is very close to the jet plate 4, most of the liquid enters tangentially through the arc-shaped diversion grooves 7, so that the ejected coolant is more divergent and the ejection angle increases; when the sealing cover plate 10 is very far from the jet plate 4, the proportion of the liquid entering tangentially through the arc-shaped diversion grooves 7 decreases, so that the ejected coolant is more convergent and the ejection angle decreases.

[0044] It further includes a cover plate adjusting mechanism for adjusting the vertical position of the cover plate 10 relative to the jet plate 4. Since the required jet angles for each cooling target 5 may be different, the vertical position of each cover plate 10 relative to the jet plate 4 in this application can be adjusted individually.

[0045] As Figure 6 shown, the cover plate adjusting mechanism includes a cover plate shaft 11 fixedly connected to the upper end face of the cover plate 10 and a cover plate piston 12 fixedly connected to the cover plate shaft 11. The cover plate shaft 11 is integrally formed at the center position of the upper end face of the cover plate 10 and is a circular plate. The cover plate piston 12 is arranged at a position slightly above the middle of the cover plate shaft 11 and is coaxial with the cover plate shaft 11.

[0046] An adjusting plate 9 is fixedly connected above the jet plate 4. The shape of the adjusting plate 9 is as Figure 9 shown, with a hollow middle to facilitate the passage of the coolant and to avoid the outlet pipe 8. The adjusting plate 9 is supported above the jet plate 4 by four adjusting plate struts 20 and thus rises and falls together with the jet plate 4.

[0047] As Figure 6 shown, the cover plate shaft 11 passes through the adjusting plate 9. A circular counterbore 19 adapted to the cover plate piston 12 is provided on the upper end face of the adjusting plate 9. The outer circle of the cover plate piston 12 is in fit with the inner wall of the circular counterbore 19 and a sealing ring is provided to improve the sealing performance.

[0048] A piston chamber cover plate 13 is bolted to the upper end of the circular counterbore 19 to cover the circular counterbore 19. The cover plate shaft 11 passes through the piston chamber cover plate 13. A sealed piston chamber is formed between the piston chamber cover plate 13 and the cover plate piston 12. A spring 18 is installed in the circular counterbore 19 below the cover plate piston 12. A piston chamber connecting pipe 17 communicating with the piston chamber is installed on the piston chamber cover plate 13, and the upper end of the piston chamber connecting pipe 17 is connected with a hose.

[0049] A rectangular opening is provided in the middle of the box cover 3. An adjusting pipe mounting plate 14 is bolted to the rectangular opening. Eight adjusting pipes 15 are vertically fixedly passed through the adjusting pipe mounting plate 14. The piston chamber is communicated with the adjusting pipes 15 through a hose. The end of the adjusting pipe 15 is threadedly connected with an adjusting screw 16. Hydraulic oil is filled in the piston chamber, the hose and the adjusting pipes 15. When the depth of the adjusting screw 16 screwed into the adjusting pipe 15 increases, the hydraulic oil is pressed into the piston chamber, increasing the volume of the piston chamber, compressing the spring 18, and reducing the distance between the cover plate 10 and the jet plate 4, thereby realizing the adjustment of the cover plate 10 externally.

[0050] The usage method of the present invention:

[0051] The coolant enters the pressure chamber through the inlet pipe 21, filling the interior with high-pressure coolant. The coolant is sprayed downward through the horn-shaped nozzle 6 onto the target 5 to be cooled for cooling. The coolant presents a certain liquid level within the cooling box 1, and the lower end of the outlet pipe 8 extracts the coolant, keeping the liquid level height within the cooling box 1 within a suitable range.

[0052] The reverse height adjustment of the jet plate 4 and the outlet pipe 8 can be achieved by rotating the outlet pipe 8. Since the sprayed coolant is in a divergent shape, when the height of the jet plate 4 increases, the area of the contact position between it and the target 5 to be cooled increases, enabling adaptation to a large-area target 5 to be cooled. At the same time, the outlet pipe 8 moves downward synchronously, reducing the internal liquid level.

[0053] By adjusting the vertical position of the cover plate 10 relative to the jet plate 4, the spraying angle of the nozzle 6 can be adjusted to adapt to different targets 5 to be cooled.

[0054] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and the accompanying drawings are only used to illustrate the technical solutions of the present invention and are not a limitation to the present invention. The present invention has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention do not depart from the purpose of the present invention and should also fall within the scope of the claims of the present invention.

Claims

1. An adjustable jet impingement injection device for cooling, comprising a cooling box body (1), wherein a plurality of targets to be cooled (5) are arranged at the bottom inside the cooling box body (1), and it is characterized in that: It also includes a jet box body (1) connected above the cooling box body (1). The jet box body (1) has an opening at the lower end and a box cover (3) installed at the upper end. A jet plate (4) that slides up and down is installed inside the jet box body (1). A sealed pressure chamber is formed between the jet plate (4) and the box cover (3). An inlet pipe (21) communicating with the pressure chamber is provided on the jet box body (1). A plurality of nozzles (6) located above the object to be cooled (5) are opened on the jet plate (4). The nozzles (6) are trumpet-shaped openings facing downward. It also includes an outlet pipe (8) vertically passing through the box cover (3) and the jet plate (4). The outlet pipe (8) is provided with a first threaded portion threadedly connected to the box cover (3) and a second threaded portion threadedly connected to the jet plate (4). The helix direction of the first threaded portion is the same as that of the second threaded portion, and the pitch of the second threaded portion is greater than that of the first threaded portion; A plurality of arc-shaped diversion grooves (7) evenly distributed along the circumference of the nozzles (6) are opened on the upper end surface of the jet plate (4); A sealing cover plate (10) is installed above the nozzles (6). It also includes a sealing cover plate adjusting mechanism for adjusting the up and down position of the sealing cover plate (10) relative to the jet plate (4); The sealing cover plate adjusting mechanism includes a cover plate shaft (11) fixedly connected to the upper end surface of the sealing cover plate (10) and a cover plate piston (12) fixedly connected to the cover plate shaft (11). An adjusting plate (9) is fixedly connected above the jet plate (4). The cover plate shaft (11) passes through the adjusting plate (9). A circular counterbore (19) adapted to the cover plate piston (12) is opened on the adjusting plate (9). A piston chamber cover plate (13) is bolted to the upper end of the circular counterbore (19). A sealed piston chamber is formed between the piston chamber cover plate (13) and the cover plate piston (12). The piston chamber is communicated with an adjusting pipe (15) through a hose. The end of the adjusting pipe (15) is threadedly connected with an adjusting screw rod (16).

2. The adjustable jet impingement injection device for cooling according to claim 1, wherein: A rectangular opening is opened in the middle of the box cover (3). An adjusting pipe mounting plate (14) is bolted to the rectangular opening. The adjusting pipe (15) is fixedly connected to the adjusting pipe mounting plate (14).

3. The adjustable jet impingement injection device for cooling according to claim 1, characterized in that: A spring (18) located below the cover plate piston (12) is installed in the circular counterbore (19).

4. An adjustable jet impingement injection device for cooling according to claim 1, characterized in that: The sealing cover plate (10) is a circular plate and is parallel to the jet plate (4). The diameter of the sealing cover plate (10) is 2 - 5 times the upper end diameter of the nozzles (6).

5. An adjustable jet impingement injection device for cooling according to claim 1, characterized in that: The pitch of the second threaded portion is 3 - 10 times the pitch of the first threaded portion.

6. An adjustable jet impingement injection device for cooling according to claim 1, characterized in that: The lower end of the jet box body (1) is inserted into the cooling box body (1). Connecting ear plates are fixedly connected to the side surface of the jet box body (1). The connecting ear plates are bolted to the upper end surface of the cooling box body (1).

7. An adjustable jet impingement injection device for cooling according to claim 1, characterized in that: Two outlet pipes (8) are provided. Synchronous belt wheels located above the box cover (3) are fixedly connected to the outlet pipes (8). The two synchronous belt wheels are connected by a synchronous belt.

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