A two-stage heat dissipation system and a safety compartment containing it

Abstract

This utility model discloses a two-stage heat dissipation system and a safety cabin containing it, belonging to the field of emergency refuge technology. It includes a first heat dissipation device and a second heat dissipation device. The first heat dissipation device includes a main heat dissipation unit and at least one heat dissipation sub-unit. The cooling medium absorbs ambient heat in the sub-unit and then flows back into the main heat dissipation unit, releasing heat through the main heat dissipation unit. The second heat dissipation device includes an inlet pipe, a heat exchange unit, and an outlet pipe. The heat exchange unit and the main heat dissipation unit are arranged close to each other, allowing the cooling water to absorb the heat released by the main heat dissipation unit, thus achieving two-stage heat dissipation. A safety cabin with this two-stage heat dissipation system is also proposed. This utility model separates the needs of cabin cooling and waste heat treatment, handling them in two separate areas to improve the overall reliability of the heat dissipation system, effectively cooling the internal environment of the cabin, and effectively protecting the life safety and health of personnel.

Description

Technical Field

[0001] This utility model belongs to the field of emergency refuge technology, specifically relating to a two-stage heat dissipation system and a safety cabin containing the system. Background Technology

[0002] As people pay more attention to various safety accidents, safety cabins have gradually gained importance as an important emergency refuge method. Although current safety cabins have the ability to prevent fire, smoke and supply oxygen, they generally lack the ability to cool down inside the cabin. People in the safety cabin have poor comfort and may even experience other physical conditions due to the rise in temperature inside the cabin. At present, conventional cooling methods (such as air conditioning) need to interact with the outside world and cannot be used smoothly in the event of a fire.

[0003] Similarly, if air conditioning and other heat dissipation systems are installed directly inside the cabin, the waste heat they generate will still affect the internal environment of the cabin and cannot achieve effective heat dissipation; moreover, when dealing with large safety cabins, there is a need to install multiple heat dissipation systems, and the problems caused by waste heat are even more serious.

[0004] Therefore, there is a need for a heat dissipation system that can be applied to safety cabins to cool the internal environment of the cabin, while avoiding the impact of waste heat on the cabin environment. Utility Model Content

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a two-stage heat dissipation system and a safety cabin containing the system, wherein environmental cooling and waste heat treatment are handled separately to avoid the waste heat of the heat dissipation unit from affecting the internal environment of the cabin.

[0006] To achieve the above objectives, this utility model provides a two-stage heat dissipation system, which includes a first heat dissipation device and a second heat dissipation device.

[0007] The first heat dissipation device includes a heat dissipation main unit and at least one heat dissipation sub-unit. The heat dissipation main unit and the heat dissipation sub-unit are connected by a medium transmission pipe, so that the cooling medium can absorb ambient heat in the heat dissipation sub-unit and then flow back into the heat dissipation main unit, and release heat through the heat dissipation main unit.

[0008] The second heat dissipation device includes an inlet pipe, a heat exchange unit, and an outlet pipe. The heat exchange unit and the heat dissipation host are arranged close to each other. One end of the inlet pipe is connected to the heat exchange unit, and the other end is an inlet for receiving cooling water. One end of the outlet pipe is connected to the heat exchange unit, and the other end is an outlet for discharging cooling water. A first pump is provided corresponding to the inlet pipe. The first pump pumps the cooling water into the heat exchange unit, so that the cooling water absorbs the heat released by the heat dissipation host in the heat exchange unit.

[0009] As a further improvement of this utility model, the outer wall surface of the heat exchange unit is in contact with the outer wall surface of the heat dissipation host, or the heat exchange unit is disposed in the heat dissipation host.

[0010] As a further improvement of this utility model, the heat exchange unit includes a plurality of "U"-shaped tubes arranged in series.

[0011] As a further improvement of this utility model, a controller is provided between the heat dissipation host and each of the heat dissipation sub-units. The controller includes a valve body and a second pump, which is used to realize the flow control of the cooling medium.

[0012] As a further improvement of this utility model, a first temperature sensor is provided corresponding to the heat dissipation unit to monitor the temperature in its vicinity;

[0013] And / or,

[0014] The heat dissipation unit is electrically connected to the controller to achieve synchronous operation of the heat dissipation unit and the controller.

[0015] As a further improvement of this utility model, a second temperature sensor is provided corresponding to the heat dissipation host to monitor the temperature in its vicinity;

[0016] And / or,

[0017] A flow rate sensor is installed corresponding to the water inlet pipe to monitor the cooling water flow rate of the second heat dissipation device.

[0018] Another aspect of this invention provides a safety cabin, including at least one of the aforementioned secondary heat dissipation systems.

[0019] It also includes a cabin, with the heat dissipation main unit located at the bottom of the cabin and the heat dissipation sub-unit located at the top of the cabin;

[0020] The cabin has two through holes that penetrate its inner and outer walls. The two through holes are respectively provided with the water inlet pipe and the water outlet pipe, so that the water inlet pipe and the water outlet pipe can be inserted therethrough and communicate with the external space of the cabin.

[0021] As a further improvement of this utility model, a partition is provided inside the cabin to divide the interior space of the cabin into a first space and a second space.

[0022] The heat dissipation unit is housed in the first space to cool the internal environment of the first space, while the heat dissipation main unit and the second heat dissipation device are both housed in the second space.

[0023] As a further improvement of this utility model, a sealing element is provided between the partition and the inner wall of the cabin to achieve isolation between the first space and the second space;

[0024] And / or,

[0025] The safety chamber also includes a storage box, which is connected to the water inlet pipe to supply water to the second heat dissipation device.

[0026] As a further improvement of this utility model, the surface of the partition and / or the storage box is provided with heat insulation material.

[0027] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0028] In summary, the technical solutions conceived by this utility model have the following beneficial effects compared with the prior art:

[0029] (1) The two-stage heat dissipation system of this utility model sets the first heat dissipation device as a split structure, which includes a heat dissipation host and a heat dissipation sub-unit. The heat dissipation sub-unit cools the interior of the cabin, while the heat dissipation host exhausts the heat, so that the two steps of cabin cooling and waste heat exhaust are in two separate areas. A second heat dissipation device is provided to treat the waste heat exhausted by the heat dissipation host. The two-stage heat dissipation method separates the needs of environmental cooling and waste heat exhaust, thereby improving the overall reliability of the heat dissipation system.

[0030] (2) The two-stage heat dissipation system of this utility model improves the heat exchange efficiency between the heat exchange unit and the heat dissipation host by including heat dissipation pipes in the heat exchange unit and passing the waste heat discharged by the heat dissipation host through cooling water.

[0031] (3) The two-stage heat dissipation system of this utility model monitors the heat dissipation system by setting multiple sensors, including temperature sensors and flow rate sensors, so as to achieve precise control of the heat dissipation system and then make corresponding operations to ensure the comfort and safety of the personnel inside the cabin.

[0032] (4) The safety cabin of this utility model is divided into two spaces by setting up a partition and corresponding sealing elements between the partition and the cabin body and between the partition and the medium transmission pipeline. The sealing elements are fire-resistant and heat-insulating materials, so that the cabin body is divided into two spaces, so that the first heat dissipation device can still operate for a period of time when there is a lack of external water supply, thereby extending its service life.

[0033] (5) The safety compartment of this utility model is equipped with a storage box through the corresponding safety compartment. The storage box is connected to the water inlet pipe. The storage box can hold cooling water so that when the external water supply is disconnected, it can provide cooling water to the heat exchange unit for a certain period of time and extend the service life of the second heat dissipation device.

[0034] (6) The safety cabin of this utility model has a heat dissipation unit set at the top of the cabin so that the heat dissipation unit can deliver cold air downwards to achieve a better cooling effect. The heat dissipation unit is set at the bottom of the cabin (i.e., the second space). The bottom of the cabin is not easily heated in emergency situations, and the use time of the heat dissipation unit can be extended in the absence of external water supply. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the secondary heat dissipation system in an embodiment of this utility model;

[0036] Figure 2 This is a schematic diagram of the structure of the secondary heat dissipation system in a small safety cabin according to an embodiment of this utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the secondary heat dissipation system in a large safety cabin according to an embodiment of this utility model;

[0038] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1, first heat dissipation device; 101, heat dissipation main unit; 102, heat dissipation sub-unit; 103, medium transmission pipeline; 2, second heat dissipation device; 201, water inlet pipe; 202, water outlet pipe; 3, cabin; 4, partition. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] Example:

[0045] The secondary heat dissipation system and the safety cabin containing it in the preferred embodiment of this utility model are as follows: Figures 1-3As shown in the diagram, the first heat dissipation device 1 includes a heat dissipation main unit 101 and at least one heat dissipation sub-unit 102. A medium transmission pipe 103 is provided between the heat dissipation main unit 101 and the heat dissipation sub-unit 102. The cooling medium is transported from the heat dissipation main unit 101 to the heat dissipation sub-unit 102, where it exchanges heat with the environment to be cooled, thereby achieving environmental cooling. Afterward, the cooling medium flows back into the heat dissipation main unit 101, where it cools the cooling medium and releases waste heat. Correspondingly, the second heat dissipation device 2 is provided with a heat dissipation main unit 101. It includes an inlet pipe 201, a heat exchange unit, and an outlet pipe 202 connected in sequence. Cooling water enters the heat exchange unit through the inlet pipe 201 via the first pump, absorbs heat from the heat exchange unit 101, and is discharged from the outlet pipe 202, thereby cooling the heat exchange unit 101. The secondary cooling system concentrates the heat from the environment onto the heat exchange unit 101 through the first cooling device 1, and then cools the heat exchange unit 101. Through the secondary cooling method, the needs for environmental cooling and waste heat discharge are separated, which improves the stability of the system.

[0046] In one embodiment, the first heat dissipation device 1 is a split-type air conditioner structure, wherein the main heat dissipation unit 101 includes a compressor and a condenser to compress and release heat from the returning cooling medium, thereby dissipating the heat in the cooling medium and then pumping it back into the heat dissipation sub-unit 102. The heat dissipation sub-unit 102 includes an evaporator and a fan. When the cooling medium enters the evaporator, it absorbs a large amount of heat from the environment and then returns to the main heat dissipation unit 101. Furthermore, the main heat dissipation unit 101 also includes a housing, wherein functional modules such as the compressor and condenser are disposed inside the housing.

[0047] Furthermore, the heat exchange unit includes a heat exchange plate, and corresponding water channels are formed inside the heat exchange plate. The water channels are connected to the inlet pipe 201 and the outlet pipe 202, respectively. Correspondingly, the heat exchange plate is attached to the outer wall of the heat dissipation unit 101 housing, so that when the internal functional modules generate heat, their heat is conducted to the housing, and the heat exchange plate absorbs the heat on the housing to cool the heat dissipation unit 101. More preferably, the water channels are formed by multiple "U"-shaped channels connected in series.

[0048] Additionally, the heat exchange unit includes at least one heat dissipation pipe, which can be formed by multiple "U"-shaped pipes connected in series.

[0049] In one embodiment, heat dissipation pipes are disposed on the outer peripheral wall of the housing. Multiple heat dissipation pipes may be disposed on the four side walls of the housing, so that the heat released by the housing can be absorbed and discharged by the cooling water in the heat dissipation pipes.

[0050] In another embodiment, the heat dissipation pipes can be installed within the housing, allowing the heat released by the compressor and condenser to be directly absorbed by the cooling water in the heat dissipation pipes through the air inside the housing, thereby improving heat exchange efficiency. Furthermore, due to the significant temperature difference between the housing interior and the cooling water, a water collector is provided corresponding to the heat dissipation pipes to collect condensed water droplets. This water collector can also be connected to the outlet pipe 202 to drain water from the collector. More preferably, heat dissipation fins are provided corresponding to the heat dissipation pipes to further improve heat exchange efficiency.

[0051] Furthermore, the cooling main unit 101 can be connected to at least one cooling sub-unit 102. A controller is provided between the cooling main unit 101 and each cooling sub-unit 102. The controller includes a first valve body and a second pump body. The first valve body is used to control the opening and closing of the medium pipeline between the cooling main unit 101 and the cooling sub-unit 102, while the corresponding second pump body pumps the cooling medium into the cooling sub-unit 102, thereby realizing the flow control of the cooling medium. More preferably, the controller and the cooling sub-unit 102 are configured in a one-to-one correspondence. In addition, the cooling sub-unit 102 and the controller are electrically connected, so that the two can operate synchronously. That is, when the first valve body and the second pump body in the controller open and deliver the cooling medium to the evaporator in the cooling sub-unit 102, the fan in the cooling sub-unit 102 also starts to run, thereby achieving ambient cooling.

[0052] Furthermore, a first temperature sensor is provided for the heat dissipation unit 102. The first temperature sensor is used to detect the temperature near the heat dissipation unit 102. When the temperature in this area is still within the normal range, the corresponding heat dissipation unit 102 does not operate. However, when the first temperature sensor detects an increase in the temperature in this area, the heat dissipation unit 102 starts operating to cool the area. More preferably, the secondary heat dissipation system also includes a control module. The control module is used to receive the signal from the first temperature sensor and, upon receiving a temperature increase signal, to issue an operating command to the corresponding controller to achieve automatic control of the secondary heat dissipation system.

[0053] Furthermore, a second temperature sensor is provided corresponding to the heat dissipation unit 101 to monitor the temperature of the heat dissipation unit 101 and its vicinity. When the detected temperature rises, the water flow rate of the inlet pipe 201 can be increased by the first pump body. More preferably, a flow rate sensor is provided corresponding to the inlet pipe 201 to detect the flow rate of the cooling water.

[0054] This utility model also proposes a safety cabin containing a two-stage heat dissipation system. The safety cabin includes a cabin body 3, wherein a heat dissipation unit 101 is located at the bottom of the cabin body 3 for easy support, while a heat dissipation sub-unit 102 is located at the top of the cabin body 3 to achieve effective cooling of the cabin environment. Furthermore, two through holes penetrating the inner and outer walls of the cabin body 3 are provided, with the two through holes corresponding to an inlet pipe 201 and an outlet pipe 202, respectively. The inlet pipe 201 passes through the other through hole, with its inlet end used to receive externally supplied cooling water, while the outlet pipe 202 also passes through the other through hole, with its outlet end discharging the cooling water outside the cabin body 3.

[0055] Furthermore, a partition 4 is also provided inside the cabin 3, which divides the interior space of the cabin 3 into two spaces, namely a first space and a second space. The first space houses the heat dissipation unit 102, while the second space houses the heat dissipation main unit 101 and the second heat dissipation device 2. Through this arrangement, heat from the first space is transferred to the second space, and then the second heat dissipation device 2 dissipates heat from the second space. This two-stage heat dissipation method prioritizes cooling the environment of the first space (i.e., the refuge space for personnel), ensuring the safety of personnel. More preferably, the partition 4 has multiple through holes, allowing the medium transmission pipe 103 to pass through.

[0056] Furthermore, a first sealing element is provided between the partition 4 and the inner wall of the compartment 3, and a second sealing element is provided between the partition 4 and the medium transmission pipeline 103. The two spaces are isolated by the sealing elements. More preferably, the sealing element is made of fire-resistant and heat-insulating material.

[0057] Furthermore, the safety cabin is also equipped with a storage box, which is connected to the water inlet pipe 201. It can be set in the second space of the cabin 3 or outside the cabin 3. In actual use, the external water supply can fill the storage box in advance so that the storage box can still supply water to the water inlet pipe 201 after the external water supply is cut off, thereby extending the running time of the secondary heat dissipation system.

[0058] Furthermore, at least one surface of the partition 4 is provided with heat-insulating material to form a heat-insulating layer, thereby achieving temperature isolation between the first space and the second space. This allows the first heat-insulating device 1 to continue operating for a period of time even when the second heat dissipation device 2 cannot operate due to a lack of cooling water, ensuring that heat is retained within the second space. More preferably, the second sensor can monitor the temperature within the second space in real time to determine whether the heat dissipation unit 101 can continue operating. Correspondingly, the flow rate sensor can detect flow rate information to determine the stability of the external water supply, facilitating judgment by personnel inside the compartment. Additionally, the storage tank may also be provided with heat-insulating material to ensure that the temperature of the internal cooling water does not rise, thus guaranteeing heat exchange efficiency.

[0059] Furthermore, an emergency power supply can be installed in the second space to power the various functional modules of the safety cabin, while an oxygen supply module is installed in the first space to supply oxygen.

[0060] like Figure 2 As shown, in a small safety cabin, only one heat dissipation unit 102 can be installed. Correspondingly, the partition 4 divides the cabin space into two spaces, the upper space being the first space and the lower space being the second space.

[0061] like Figure 3 As shown, in a large safety cabin, in which multiple heat dissipation units 102 can be arranged, the partition 4 is arranged to extend laterally to divide the cabin space into two, namely a first space and a second space.

[0062] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A two-stage heat dissipation system, characterized in that, Includes a first heat dissipation device and a second heat dissipation device. The first heat dissipation device includes a heat dissipation main unit and at least one heat dissipation sub-unit. The heat dissipation main unit and the heat dissipation sub-unit are connected by a medium transmission pipe, so that the cooling medium can absorb ambient heat in the heat dissipation sub-unit and then flow back into the heat dissipation main unit, and release heat through the heat dissipation main unit. The second heat dissipation device includes an inlet pipe, a heat exchange unit, and an outlet pipe. The heat exchange unit and the heat dissipation host are arranged close to each other. One end of the inlet pipe is connected to the heat exchange unit, and the other end is an inlet for receiving cooling water. One end of the outlet pipe is connected to the heat exchange unit, and the other end is an outlet for discharging cooling water. A first pump is provided corresponding to the inlet pipe. The first pump pumps the cooling water into the heat exchange unit, so that the cooling water absorbs the heat released by the heat dissipation host in the heat exchange unit.

2. The two-stage heat dissipation system of claim 1, wherein, The outer wall of the heat exchange unit is in contact with the outer wall of the heat dissipation host, or the heat exchange unit is installed in the heat dissipation host.

3. The two-stage heat dissipation system of claim 2, wherein, The heat exchange unit includes multiple "U"-shaped tubes arranged in series.

4. The two-stage heat dissipation system of any one of claims 1-3, wherein, A controller is provided between the main cooling unit and each of the cooling sub-units. The controller includes a valve body and a second pump, which are used to control the flow of the cooling medium.

5. The two-stage heat dissipation system of claim 4, wherein, A first temperature sensor is provided for the heat dissipation unit to monitor the temperature in its vicinity; And / or, The heat dissipation unit is electrically connected to the controller to achieve synchronous operation of the heat dissipation unit and the controller.

6. The two-stage heat dissipation system of claim 4, wherein, A second temperature sensor is provided for the heat dissipation unit to monitor the temperature in its vicinity; And / or, A flow rate sensor is installed corresponding to the water inlet pipe to monitor the cooling water flow rate of the second heat dissipation device.

7. A safety chamber, characterized in that Includes at least one secondary heat dissipation system as described in any one of claims 1 to 6, It also includes a cabin, with the heat dissipation main unit located at the bottom of the cabin and the heat dissipation sub-unit located at the top of the cabin; The cabin has two through holes that penetrate its inner and outer walls. The two through holes are respectively provided with the water inlet pipe and the water outlet pipe, so that the water inlet pipe and the water outlet pipe can be inserted therethrough and communicate with the external space of the cabin.

8. The safety capsule of claim 7, wherein, The cabin is equipped with a partition to divide the interior space into a first space and a second space. The heat dissipation unit is housed in the first space to cool the internal environment of the first space, while the heat dissipation main unit and the second heat dissipation device are both housed in the second space.

9. The safety cabin according to claim 8, wherein, A sealing element is provided between the partition and the inner wall of the cabin to isolate the first space from the second space; And / or, The safety chamber also includes a storage box, which is connected to the water inlet pipe to supply water to the second heat dissipation device.

10. The safety chamber of claim 9, wherein, The surface of the partition and / or the storage box is provided with heat-insulating material.

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