Spraying device for quickly precooling built storage tank

Abstract

The utility model discloses a spraying device for quickly precooling a built storage tank, which is arranged on a connector close to the side surface of the top of the built storage tank, is used for spraying a coolant into the built storage tank, and comprises an outer pipe matched and connected with the connector and an inner pipe arranged in the outer pipe, the outer pipe is a bent pipe bent by 90 degrees, one end of the outer pipe is connected with the connector, and the other end of the outer pipe is bent downwards to be parallel to the side wall of the built storage tank. The inner pipe is arranged at the axis position of the end, connected with the connector, of the outer pipe, one end of the inner pipe extends into the built storage tank, and the other end of the inner pipe penetrates out of the bent outer wall of the outer pipe to be connected with a coolant source with pressure. An atomizing nozzle is arranged at one end, extending into the built storage tank, of the inner pipe; the atomizing nozzle comprises a liquid separation nozzle and an atomizing nozzle opening; and a plurality of nozzles are arranged on the liquid separation nozzle in a surrounding manner. According to the utility model, the conventional gaseous cooling is changed into small-flow liquid phase cooling, and the liquid phase enters the large-capacity storage tank through the small-caliber pipeline, so that rapid gasification can be realized, and the storage tank can be rapidly cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank precooling, in particular to a spray device for rapid precooling of an existing storage tank. Background Art

[0002] Currently, the most commonly used pre-cooling technology for storage tanks in engineering is usually low-temperature nitrogen pre-cooling technology. In continuously running devices, the equipment will continue to run for a long time after the pre-cooling meets the standards.

[0003] In short-cycle operating devices such as laboratories, it is often necessary to quickly pre-cool the equipment to achieve test conditions.

[0004] However, existing technologies cannot quickly reduce the temperature of the equipment, and they consume a lot of energy and are complicated to operate.

[0005] Therefore, how to improve experimental efficiency, shorten experimental preparation time, and make the operation of the pre-cooling process more flexible and reliable has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the utility model provides a spray device for rapid pre-cooling of existing storage tanks. The purpose is to quickly reduce the temperature of the equipment to meet the test conditions, while reducing energy consumption and operating costs. It can provide researchers with a more flexible and controllable pre-cooling solution. Compared with the existing technology, it is a more efficient and economical pre-cooling method, especially suitable for devices with short-cycle operation, such as laboratory equipment.

[0007] To achieve the above-mentioned purpose, the utility model discloses a spray device for rapid pre-cooling of an existing storage tank, which is arranged at an interface near the top side of the existing storage tank and is used to spray coolant into the existing storage tank, and includes an outer tube that matches and connects to the interface, and an inner tube arranged inside the outer tube;

[0008] The outer tube is a 90-degree curved tube, one end of which is connected to the interface;

[0009] The inner tube is arranged at the axial position of the end where the outer tube is connected to the interface, one end of the inner tube extends into the built storage tank, and the other end passes through the curved outer wall of the outer tube to connect to the pressurized coolant source;

[0010] An atomizing nozzle is provided at one end of the inner tube extending into the built storage tank;

[0011] The atomizing nozzle includes a liquid separation nozzle and an atomizing nozzle;

[0012] A plurality of nozzles are arranged around the liquid separation nozzle.

[0013] Preferably, an upper tank thermometer is provided on the top of the built storage tank; and a lower tank thermometer is provided near the top side of the built storage tank.

[0014] Preferably, the end of the atomizing nozzle connected to the inner tube is provided with an external threaded tube, which is connected to the end of the inner tube extending into the built storage tank through the external threaded tube.

[0015] Preferably, an inner tube support frame is provided inside the straight tube portion of the outer tube close to the interface;

[0016] The inner tube support frame includes two or more support rods and a support sleeve matching the inner tube;

[0017] The support sleeve is coaxially arranged with the axis of one end of the outer tube connected to the interface;

[0018] All the support rods are evenly distributed around the axis of one end of the outer tube connected to the interface, and both ends are respectively connected to the outer wall of the support sleeve and the inner wall of the straight tube part of the outer tube close to the interface.

[0019] More preferably, each of the support rods is fixedly connected to the inner wall of the straight pipe portion of the outer pipe close to the interface by fillet welding.

[0020] Preferably, the outer wall of the outer tube is provided with a reinforcement ring at the position where the inner tube passes through;

[0021] The reinforcement ring is a thickened structure arranged on the outer side of the outer tube wall around the position where the inner tube passes through.

[0022] Preferably, a reinforcing bracket is provided between the portion of the inner tube passing through the outer tube and the outer tube;

[0023] The reinforcement bracket includes a vertical plate fixed to the outer tube and parallel to the outer wall of the existing storage tank, and an inverted "L"-shaped fixing platform provided on the upper end of the vertical plate;

[0024] The "L"-shaped fixing platform is provided with a U-shaped bolt, and the portion of the inner tube passing through the outer tube is fixed by a hoop structure formed by the U-shaped bolt and the "L"-shaped fixing platform.

[0025] Preferably, one end of the inner tube passing through the outer tube is connected to the coolant source through a pipeline; the pipeline is provided on the valve.

[0026] Preferably, the coolant is liquid nitrogen.

[0027] Preferably, the interface is connected to the outer tube via a flange structure.

[0028] Beneficial effects of the utility model:

[0029] The utility model changes the existing gaseous cooling into small-flow liquid cooling. The liquid phase enters a large-capacity storage tank through a small-diameter pipe, which can achieve rapid gasification and quickly cool down the storage tank, thereby quickly lowering the equipment temperature to meet test conditions while reducing energy consumption and operating costs. It can provide researchers with a more flexible and controllable pre-cooling solution. Compared with the existing technology, it is a more efficient and economical pre-cooling method, and is particularly suitable for devices with short-cycle operation, such as laboratory equipment.

[0030] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram showing a state where an embodiment of the utility model is installed on an existing storage tank.

[0032] Figure 2 A structural diagram of an embodiment of the present utility model is shown.

[0033] Figure 3 A schematic structural diagram of an atomizing nozzle in one embodiment of the present invention is shown.

[0034] Figure 4 A schematic structural diagram of an inner tube support frame in one embodiment of the present invention is shown.

[0035] Figure 5 A schematic structural diagram of a reinforcing bracket in one embodiment of the present invention is shown.

[0036] Figure 6 A schematic structural diagram of a sleeve structure formed by a U-shaped bolt and an “L”-shaped fixing platform in a reinforcing bracket in one embodiment of the present invention is shown. DETAILED DESCRIPTION

[0037] Example

[0038] like Figures 1 to 3 As shown, the spray device for rapid pre-cooling of an existing storage tank is provided at an interface 11 near the top side of the existing storage tank 1 and is used to spray coolant into the existing storage tank 1. The device includes an outer tube 2 that matches and connects to the interface 11, and an inner tube 3 that is provided within the outer tube 2.

[0039] The outer tube 2 is a 90-degree curved tube, one end of which is connected to the interface 11;

[0040] The inner tube 3 is arranged at the axial position of the end where the outer tube 2 is connected to the interface 11, with one end extending into the existing storage tank 1, and the other end passing through the curved outer wall of the outer tube 2 to connect to the pressurized coolant source;

[0041] One end of the inner pipe 3 extending into the existing storage tank 1 is provided with an atomizing nozzle 4;

[0042] The atomizing nozzle 4 includes a liquid separation nozzle 41 and an atomizing nozzle 42;

[0043] A plurality of nozzles 43 are disposed around the liquid dispensing nozzle 41 .

[0044] The utility model realizes the pre-cooling condition from gas to liquid in the existing storage tank 1. The large-sized interface 11 on the upper part of the existing storage tank 1 can be selected for transformation. Firstly, it is convenient for supporting and welding the spray pipe, and secondly, it minimizes the impact on the circulation of the original medium.

[0045] During the transformation, a DN25 opening is opened on the elbow of the outer pipe 2, and the inner pipe 3, i.e. the liquid nitrogen pipe, is inserted.

[0046] This utility model replaces existing gaseous cooling with low-flow liquid cooling. The liquid enters a large-capacity storage tank through a small-diameter pipe, achieving rapid vaporization and rapidly cooling the tank. This reduces the cooling time from the original 2-3 days to half a day. If the tank needs further cooling, low-temperature liquid nitrogen can also be used for rapid cooling.

[0047] In some embodiments, an upper tank thermometer 12 is provided on the top of the existing storage tank 1 ; and a lower tank thermometer 13 is provided near the top side of the existing storage tank 1 .

[0048] In some embodiments, an external threaded tube 44 is provided at one end of the atomizing nozzle 4 connected to the inner tube 3 , and is connected to one end of the inner tube 3 extending into the existing storage tank 1 through the external threaded tube 44 .

[0049] like Figure 4 As shown, in some embodiments, an inner tube support frame 21 is provided inside the straight tube portion of the outer tube 2 close to the interface 11;

[0050] The inner tube support frame 21 includes two or more support rods 211 and a support sleeve 212 that matches the inner tube 3;

[0051] The support sleeve 212 is coaxially arranged with the axis of one end of the outer tube 2 connecting to the interface 11;

[0052] All support rods 211 are evenly distributed around the axis of one end of the outer tube 2 connected to the interface 11 , and both ends are respectively connected to the outer wall of the support sleeve 212 and the inner wall of the straight pipe portion of the outer tube 2 close to the interface 11 .

[0053] In some embodiments, each support rod 211 is fixedly connected to the inner wall of the straight pipe portion of the outer tube 2 close to the interface 11 by fillet welding.

[0054] In some embodiments, the outer wall of the outer tube 2 is provided with a reinforcing ring 5 at the position where the inner tube 3 passes through;

[0055] The reinforcing ring 5 is a thickened structure provided on the outer side of the wall of the outer tube 2 around the position where the inner tube 3 passes through.

[0056] like Figure 5 and Figure 6 As shown, in some embodiments, the inner tube 3 passes through the portion of the outer tube 2, and a reinforcing bracket 6 is provided between the inner tube 3 and the outer tube 2;

[0057] The reinforcement bracket 6 includes a vertical plate 61 fixed to the outer tube 2 and parallel to the outer wall of the existing storage tank 1, and an inverted "L"-shaped fixing platform 62 provided at the upper end of the vertical plate 61;

[0058] A U-shaped bolt 63 is provided on the “L”-shaped fixing platform 62 , and the portion of the inner tube 3 passing through the outer tube 2 is fixed by a hoop structure formed by the U-shaped bolt 63 and the “L”-shaped fixing platform 62 .

[0059] Since the other end of the inner tube 3 passes through the opening of the curved outer wall of the outer tube 2, which destroys the strength of the original elbow of the outer tube 2, it is necessary to reinforce the connection. In order to increase the stability of the inner tube 3, that is, the liquid nitrogen pipeline, a reinforcing bracket 6 made of welded steel plates is added between the part of the inner tube 3 passing through the outer tube 2 and the outer tube 2.

[0060] In some embodiments, one end of the inner tube 3 passing through the outer tube 2 is connected to a coolant source via a pipe 7 ; the pipe 7 is provided at a valve 71 .

[0061] In certain embodiments, the coolant is liquid nitrogen.

[0062] In some embodiments, the interface 11 is connected to the outer tube 2 via a flange structure.

[0063] In practical applications, the interface 11 is connected to the outer tube 2 via a flange structure to facilitate subsequent disassembly, assembly, inspection, maintenance and replacement.

[0064] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A spraying device for rapid pre-cooling of an existing storage tank, arranged at an interface (11) near the top side of the existing storage tank (1), for spraying a coolant into the existing storage tank (1); characterized in that: It comprises an outer tube (2) matched with and connected to the interface (11), and an inner tube (3) arranged in the outer tube (2); The outer tube (2) is a 90-degree curved tube, one end of which is connected to the interface (11); The inner tube (3) is arranged at the axial position of one end of the outer tube (2) connected to the interface (11), one end of which extends into the built storage tank (1), and the other end of which passes through the curved outer wall of the outer tube (2) to connect to a pressurized coolant source; One end of the inner tube (3) extending into the built storage tank (1) is provided with an atomizing nozzle (4); The atomizing nozzle (4) includes a liquid separation nozzle (41) and an atomizing nozzle (42); A plurality of nozzles (43) are arranged around the liquid separation nozzle (41).

2. The spray device for rapid precooling of an existing storage tank according to claim 1, characterized in that: The top of the built storage tank (1) is provided with an upper tank thermometer (12); and the position of the built storage tank (1) near the top side is provided with a lower tank thermometer (13).

3. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: One end of the atomizing nozzle (4) connected to the inner tube (3) is provided with an external threaded tube (44), which is connected to one end of the inner tube (3) extending into the built storage tank (1) through the external threaded tube (44).

4. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: An inner tube support frame (21) is provided inside the straight tube portion of the outer tube (2) close to the interface (11); The inner tube support frame (21) includes two or more support rods (211) and a support sleeve (212) matching the inner tube (3); The supporting sleeve (212) is coaxially arranged with the axis of one end of the outer tube (2) connected to the interface (11); All the support rods (211) are evenly distributed around the axis of one end of the outer tube (2) connected to the interface (11), and both ends are respectively connected to the outer wall of the support sleeve (212) and the inner wall of the straight tube portion of the outer tube (2) close to the interface (11).

5. The spraying device for rapid precooling of an existing storage tank according to claim 4, characterized in that: Each of the support rods (211) is fixedly connected to the inner wall of the straight pipe portion of the outer pipe (2) close to the interface (11) by fillet welding.

6. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: The outer wall of the outer tube (2) is provided with a reinforcing ring (5) at the position where the inner tube (3) passes through; The reinforcing ring (5) is a thickened structure arranged on the outer side of the wall of the outer tube (2) around the position where the inner tube (3) passes through.

7. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: A reinforcing bracket (6) is provided between the portion of the inner tube (3) passing through the outer tube (2) and the outer tube (2); The reinforcing bracket (6) includes a vertical plate (61) fixed to the outer tube (2) and parallel to the outer wall of the built storage tank (1), and an inverted "L"-shaped fixing platform (62) provided on the upper end of the vertical plate (61); A U-shaped bolt (63) is provided on the L-shaped fixing platform (62), and the portion of the inner tube (3) passing through the outer tube (2) is fixed by a sleeve structure formed by the U-shaped bolt (63) and the L-shaped fixing platform (62).

8. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: One end of the inner tube (3) passing through the outer tube (2) is connected to the coolant source via a pipe (7); the pipe (7) is provided at a valve (71).

9. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: The coolant is liquid nitrogen.

10. The spraying device for rapid precooling of an existing storage tank according to claim 1, characterized in that: The interface (11) is connected to the outer tube (2) via a flange structure.

Images