A quencher

Abstract

This utility model discloses a quencher, comprising: a tank body, the tank body being hollow; one or more high-temperature pipelines disposed within the tank body; multiple low-temperature pipelines disposed within the tank body and surrounding the high-temperature pipelines; and multiple nozzles, the nozzles being connected to the low-temperature pipelines, each nozzle including a connecting portion connected to the low-temperature pipeline and a nozzle for spraying, the nozzle having a flat, straight cross-section and facing the high-temperature pipeline.

Description

Technical Field

[0001] This utility model relates to the field of energy heat exchange equipment technology, specifically to a quench cooler. Background Technology

[0002] In modern industrial production systems, quench coolers are key equipment for energy recycling, and their performance directly affects production efficiency and energy consumption. However, with the increasing demands for energy efficiency and space utilization in industrial development, the traditional technological shortcomings of this type of equipment are becoming increasingly apparent.

[0003] As a core heat exchange device, the quench cooler's traditional design suffers from low heat exchange efficiency, resulting in significant energy loss during heat transfer and substantially increasing operating costs for businesses. Furthermore, its massive physical structure not only occupies considerable industrial space and increases installation difficulty, but also limits the possibility of optimizing factory layout and increasing production capacity, becoming a bottleneck for space utilization efficiency.

[0004] Under the dual pressures of soaring energy prices and scarce industrial land resources, the aforementioned problems have seriously hindered the development of industrial production towards high efficiency, energy conservation, and space-saving. Developing a new type of quench cooler to overcome the technical constraints of existing equipment—high energy consumption, large size, and significant energy loss—and achieving efficient energy recycling has become an urgent priority for modern industrial production. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a new type of quencher.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quencher includes: a tank body, the tank body being hollow; one or more high-temperature pipelines disposed within the tank body; multiple low-temperature pipelines disposed within the tank body and surrounding the high-temperature pipelines; and multiple nozzles, the nozzles communicating with the low-temperature pipelines, each nozzle including a connecting portion connected to the low-temperature pipeline and a nozzle for spraying, the nozzle having a flat, straight cross-section and facing the high-temperature pipeline.

[0008] In one embodiment, there are two or more nozzle orientations on the same cryogenic pipeline.

[0009] In one embodiment, the high-temperature pipeline is used for ethylene supply, and / or the low-temperature pipeline is used for liquefied natural gas supply.

[0010] In one embodiment, the quencher includes an inlet section, which includes a hemispherical inlet body and a high-temperature medium inlet communicating with the interior of the inlet body. The high-temperature pipeline also communicates with the interior of the inlet body.

[0011] In one embodiment, the cryogenic pipeline passes through the inlet and is connected to the outside.

[0012] In one embodiment, the inlet body is provided with a partition extending in the vertical direction to divide the interior of the inlet body into a first cavity and a second cavity. The first cavity is in communication with the high-temperature medium inlet, and the high-temperature pipeline passes through the second cavity and communicates with the first cavity.

[0013] In one embodiment, the cryogenic pipeline passes through the second cavity to communicate with the outside, while the cryogenic pipeline is arranged to avoid the first cavity.

[0014] In one embodiment, the upper part of the tank has an outlet for discharging gaseous natural gas.

[0015] In one embodiment, the quencher includes an outlet section, which includes a hemispherical outlet body and a high-temperature medium outlet communicating with the interior of the outlet body. The high-temperature pipeline also communicates with the interior of the outlet body.

[0016] In one embodiment, the quencher includes two or more tanks connected in series by flange bolts.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] The quench cooler of this invention adopts a direct contact quench mode. The nozzle used for cooling has a flat, straight cross-section, which increases the spray pressure, extends the range, and increases the spray area of ​​the low-temperature medium. This makes the cooling more uniform, the quench area wider, and at the same time reduces costs and improves efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the quench cooler in one embodiment of the present invention;

[0020] Figure 2 This is a front view of the quench cooler in one embodiment of the present invention;

[0021] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0022] Figure 4 This is an explosion diagram of the quencher removing part of the tank in one embodiment of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of a quencher with part of the tank removed in one embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional schematic diagram of the nozzle in one embodiment of the present invention;

[0025] Figure 7 This is a front view of the nozzle in one embodiment of the present invention;

[0026] Figure 8 for Figure 7 A cross-sectional view along the BB direction;

[0027] The numbers on the map are:

[0028] 1-Tank body; 11-Front plate; 12-Rear plate; 13-First through hole; 14-Second through hole; 15-Outlet; 2-High temperature pipeline; 3-Low temperature pipeline; 4-Nozzle; 41-Connecting part; 42-Nozzle; 5-Inlet part; 51-Inlet body; 52-High temperature medium inlet; 53-Baffle; 54-First cavity; 55-Second cavity; 6-Outlet part; 61-Outlet body; 62-High temperature medium outlet. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this utility model, the directions such as "front," "rear," "left," "right," "up," and "down" are explained as follows: Figure 3 As shown in the figure, the left direction is "front", the right direction is "back", the upper direction is "up", the lower direction is "down", and the direction perpendicular to the viewpoint is "left" and "right". The above definitions of directions are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figure 1-8 As shown, the quencher in some embodiments of this utility model includes a tank 1, one or more high-temperature pipelines 2, multiple low-temperature pipelines 3, multiple nozzles 4, an inlet 5, and an outlet 6.

[0032] The tank 1 is hollow and cylindrical, specifically including a front plate 11 and a rear plate 12. Multiple tanks 1 can be installed in one quencher. The tanks 1 are connected in series by flange bolts. Specifically, the rear plate 12 of the previous tank 1 is connected to the front plate 11 of the next tank 1 by flange bolts, so that tanks 1 can be added or removed according to actual needs, and it is also convenient for transportation and cleaning and maintenance.

[0033] High-temperature pipeline 2 is installed inside tank 1, specifically, as follows: Figure 5As shown, each tank 1 is provided with 9 high-temperature pipes 2. The front end of the high-temperature pipe 2 passes through the front plate 11, and the rear end of the high-temperature pipe 2 passes through the rear plate 12. The front plate 11 and the rear plate 12 are respectively provided with first through holes 13 to cooperate with the high-temperature pipes 2.

[0034] The cryogenic pipeline 3 is installed inside the tank 1 and surrounds the high-temperature pipeline 2, specifically, as follows: Figure 5 As shown, each tank 1 is provided with 4 cryogenic pipes 3. The cryogenic pipes 3 are respectively located above, below, to the left and to the right of the high temperature pipes 2. The front end of the cryogenic pipe 3 passes through the front plate 11, and the rear end of the cryogenic pipe 3 passes through the rear plate 12. The front plate 11 and the rear plate 12 are respectively provided with second through holes 14 to cooperate with the cryogenic pipes 3.

[0035] The nozzle 4 is connected to the cryogenic pipeline 3. The nozzle 4 includes a connecting part 41 connected to the cryogenic pipeline 3 and a nozzle 42 for spraying. Specifically, as shown in the figure... Figure 7 As shown, the nozzle 42 has a flat, I-shaped connecting part in its cross-section, as... Figure 8 As shown, the portion of the connecting part 41 that connects to the cryogenic pipeline 3 and the portion that connects to the nozzle 42 is set from wide to narrow, which facilitates the entry of the cryogenic medium into the nozzle and also makes it easy to connect to the nozzle 42. The flat, straight nozzle 42 increases the spray pressure and also makes the spray range wider, so that the cryogenic medium can better exchange heat with the high-temperature medium.

[0036] Nozzle 42 is positioned toward high-temperature pipe 2, specifically, as follows: Figure 3-5 As shown, when there are four low-temperature pipelines 3 located above, below, to the left, and to the right of the high-temperature pipelines 2, the nozzles 42 on the upper low-temperature pipeline 3 can be set downwards, the nozzles 42 on the lower low-temperature pipeline 3 can be set upwards, the nozzles 42 on the left low-temperature pipeline 3 can be set to the right, diagonally upwards, or diagonally downwards, and the nozzles 42 on the right low-temperature pipeline 3 can be set to the left, diagonally upwards, or diagonally downwards. That is, there are two or more orientations of the nozzles 42 on the same low-temperature pipeline 3, so as to maximize the coverage of all high-temperature pipelines by the spray of the nozzles 42. In other embodiments, nozzles 42 that do not face the high-temperature pipelines can also be set so that the entire interior of the tank can be cooled better.

[0037] In one embodiment, the high-temperature pipeline 2 is used to carry ethylene, and the low-temperature pipeline is used to carry liquefied natural gas. After the liquefied natural gas completes the heat exchange with the high-temperature ethylene, the natural gas vaporizes. In one embodiment, the upper part of the tank body 1 is provided with an outlet 15 for discharging gaseous natural gas.

[0038] The inlet section 5 includes a hemispherical inlet body 51, a high-temperature medium inlet 52 communicating with the interior of the inlet body 51, and a partition 53 extending vertically. The partition 53 divides the interior of the inlet body 51 into a first cavity 54 and a second cavity 55. The first cavity 54 communicates with the high-temperature medium inlet 52. The high-temperature pipeline 2 passes through the second cavity 55 and communicates with the first cavity 54. The low-temperature pipeline 3 passes through the inlet section 5 and communicates with the outside. Specifically, the low-temperature pipeline 3 passes through the second cavity 55 and communicates with the outside, avoiding the first cavity 54. By setting the partition 53, the high-temperature medium is introduced into the first cavity 54 and guided into the high-temperature pipeline 2, while the low-temperature pipeline 3 does not pass through the first cavity 54, preventing leakage of the low-temperature medium in the first cavity 54 and ensuring safety.

[0039] The outlet section 6 includes a hemispherical outlet body 61, a high-temperature medium outlet 52 that is connected to the interior of the outlet body 61, and a high-temperature pipeline 2 that is also connected to the interior of the outlet body 61.

[0040] The following provides a method of using the quench cooler according to an embodiment of the present invention, including the following steps:

[0041] Step 1: Assemble the entire quencher and check the airtightness of the valves (not shown in the figure) and all connections;

[0042] Step 2: Open the liquefied natural gas inlet valve (not shown in the figure) to introduce liquefied natural gas and pre-cool the inside of the tank;

[0043] Step 3: After the tank is fully pre-cooled, gradually open the valve of the high-temperature medium inlet to the maximum flow level, and stably introduce the high-temperature medium into the tank to start the rapid cooling process;

[0044] Step 4: Open the valve at the outlet of the high-temperature medium to discharge the rapidly cooled high-temperature medium;

[0045] Step 5: Open the gaseous natural gas outlet of the tank to release the natural gas.

[0046] Working principle: During the pre-cooling stage, cryogenic liquefied LNG enters the tank through cryogenic pipelines and is sprayed onto the entire tank via nozzles installed on these pipelines, thus pre-cooling the tank. After pre-cooling, a high-temperature medium at 800°C enters the tank through the high-temperature medium inlet. The high-temperature pipeline is divided into nine channels arranged in a honeycomb pattern and passes through the tank, while the cryogenic pipeline surrounds the high-temperature pipeline. As the high-temperature medium flows through the tank, the liquefied LNG is sprayed onto the high-temperature pipeline through nozzles installed on the cryogenic pipeline, performing a rapid cooling operation. This allows the high-temperature medium to complete the heat exchange process without contacting the liquefied LNG. After heat exchange, the high-temperature medium flows out from the core area of ​​the tank through the high-temperature medium outlet; the LNG, which has absorbed heat and vaporized, is discharged from the outlet on the tank and further recycled.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A quench cooler, characterized in that, include: The tank body is hollow; One or more high-temperature pipelines are installed inside the tank; Multiple cryogenic pipelines are disposed inside the tank and surround the high-temperature pipelines; Multiple nozzles are provided, each nozzle being connected to the low-temperature pipeline. Each nozzle includes a connecting part connected to the low-temperature pipeline and a nozzle for spraying. The nozzle has a flat, straight cross-section and faces the high-temperature pipeline.

2. The quencher according to claim 1, characterized in that: On the same cryogenic pipeline, there are two or more nozzle orientations.

3. The quencher according to claim 1, characterized in that: The high-temperature pipeline is used for ethylene supply, and / or the low-temperature pipeline is used for liquefied natural gas supply.

4. The quencher according to claim 2 or 3, characterized in that: The quencher includes an inlet section, which includes a hemispherical inlet body and a high-temperature medium inlet that communicates with the interior of the inlet body. The high-temperature pipeline also communicates with the interior of the inlet body.

5. The quencher according to claim 4, characterized in that: The cryogenic pipeline passes through the inlet and connects to the outside.

6. The quencher according to claim 5, characterized in that: The inlet body is provided with a partition extending in the vertical direction to divide the interior of the inlet body into a first cavity and a second cavity. The first cavity is connected to the high-temperature medium inlet, and the high-temperature pipeline passes through the second cavity and is connected to the first cavity.

7. The quencher according to claim 6, characterized in that: The cryogenic pipeline passes through the second cavity and connects to the outside, while the cryogenic pipeline avoids the first cavity.

8. The quencher according to claim 4, characterized in that: The upper part of the tank has an outlet for discharging gaseous natural gas.

9. The quencher according to claim 2 or 3, characterized in that: The quencher includes an outlet section, which includes a hemispherical outlet body and a high-temperature medium outlet that communicates with the interior of the outlet body. The high-temperature pipeline also communicates with the interior of the outlet body.

10. The quencher according to claim 2, characterized in that: The quencher includes two or more tanks, which are connected in series by flange bolts.

Images