Gas cooler and respirator

Abstract

The utility model relates to the technical field of respirators, and provides a gas cooler and a respirator. The gas cooler comprises a shell, an installation cavity is formed in the shell, a gas inlet communicated with the installation cavity is formed in the first end of the shell, and a gas outlet communicated with the installation cavity is formed in the second end of the shell; the refrigerating pipe is arranged in the mounting cavity, a refrigerating space is arranged between the refrigerating pipe and the inner wall surface of the mounting cavity, one of the refrigerating pipe and the refrigerating space is provided with a cold accumulation part, the other one of the refrigerating pipe and the refrigerating space forms a gas channel, and the gas channel is communicated with the gas inlet and the gas outlet. According to the gas cooler, the heat exchange area is increased, and the gas cooling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of respirators, and in particular to a gas cooler and a respirator. Background Art

[0002] Oxygen respirator is a closed-circuit breathing system isolated from the outside world. It is worn by people for safe and effective rescue, first aid and operation in various environments such as dense smoke, toxic gas, steam or lack of oxygen. As the use time increases, the heat released by chemical reactions (such as calcium hydroxide, potassium superoxide and CO 2 The temperature of the gas inside the oxygen respirator will gradually rise, exceeding the tolerance limit of the human respiratory tract. Therefore, air cooling components are usually used to solve the problem of excessively high inhalation temperature.

[0003] In the related art, the contact area between the cold storage member of the air cooling component and the gas is small, resulting in low cooling efficiency. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a gas cooler, which increases the heat exchange area and improves the cooling efficiency of the gas.

[0005] The present application also proposes a respirator.

[0006] The gas cooler according to the first embodiment of the present application includes:

[0007] A housing, wherein the housing is formed with a mounting cavity, a first end of the housing is provided with an air inlet communicating with the mounting cavity, and a second end of the housing is provided with an air outlet communicating with the mounting cavity;

[0008] A refrigeration pipe is arranged in the installation cavity, a refrigeration space is provided between the refrigeration pipe and the inner wall surface of the installation cavity, a cold storage component is installed in one of the refrigeration pipe and the refrigeration space, and a gas channel is formed between the refrigeration pipe and the other of the refrigeration space, and the gas channel connects the air inlet and the air outlet.

[0009] According to the gas cooler of the embodiment of the present application, the gas enters the installation cavity from the air inlet, and then flows along the gas channel to the air outlet. When the gas flows through the gas channel, the gas will contact the tube wall of the refrigeration tube, and the tube wall of the refrigeration tube abuts against the cold storage component, and then the cold storage component can cool the gas in the gas channel, so that the temperature of the gas flowing out of the air outlet will be lower than the temperature of the gas flowing in from the air inlet, thereby achieving the cooling of the gas. The present application uses the tube wall of the refrigeration tube as the contact surface with the gas, increases the heat exchange area, and thus improves the cooling efficiency of the gas.

[0010] According to one embodiment of the present application, the refrigeration pipe extends along a direction from the air inlet to the air outlet.

[0011] According to one embodiment of the present application, the gas cooler includes a plurality of refrigeration tubes, and a gap is provided between two adjacent refrigeration tubes.

[0012] According to one embodiment of the present application, a plurality of the refrigeration tubes are evenly spaced and arranged in the installation cavity.

[0013] According to an embodiment of the present application, a storage cavity is formed in the refrigeration tube, the storage cavity is used to place the cold storage component, and the gas channel is formed between the refrigeration tube and the inner wall surface of the installation cavity and between two adjacent refrigeration tubes.

[0014] According to one embodiment of the present application, the gas cooler comprises a porous plate, the porous plate is fixedly installed in the installation cavity, the porous plate is formed with a plurality of channels, and the refrigeration pipes are installed in some of the channels.

[0015] According to an embodiment of the present application, the gas channel is formed in the refrigeration tube, and the cold storage component is provided between the refrigeration tube and the inner wall surface of the installation cavity and / or between two adjacent refrigeration tubes.

[0016] According to one embodiment of the present application, the gas cooler includes an upper mounting plate and a lower mounting plate, both of which are fixedly mounted in the mounting cavity, the refrigeration pipe is installed between the upper mounting plate and the lower mounting plate, and air holes are provided at the connection between the upper mounting plate and the refrigeration pipe and at the connection between the lower mounting plate and the refrigeration pipe, and the air holes are connected to the gas channel.

[0017] According to one embodiment of the present application, a protective layer is provided on the outer wall surface of the shell; and / or the thermal conductivity of the refrigeration pipe is 0.01 W / (m·K)-1.5 W / (m·K).

[0018] The respirator according to the second aspect of the present application includes the above-mentioned gas cooler, and the connecting end of the locking pin is inserted into the pin hole.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is one of the structural schematic diagrams of the gas cooler provided in the embodiment of the present application;

[0022] Figure 2 This is the second structural schematic diagram of the gas cooler provided in the embodiment of the present application.

[0023] Reference numerals:

[0024] 1. Shell; 2. Refrigeration pipe; 3. Cold storage part; 4. Gas channel; 5. Perforated plate; 6. Upper mounting plate; 7. Lower mounting plate; 8. Protective layer; 11. Mounting cavity; 12. Air inlet; 13. Air outlet. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Combine the following Figure 1 and Figure 2 A gas cooler and a respirator of the present application are described.

[0031] According to the embodiment of the first aspect of the present application, Figure 1 and Figure 2 As shown, the gas cooler comprises:

[0032] A housing 1 is formed with a mounting cavity 11, a first end of the housing 1 is provided with an air inlet 12 communicating with the mounting cavity 11, and a second end of the housing 1 is provided with an air outlet 13 communicating with the mounting cavity 11;

[0033] The refrigeration pipe 2 is arranged in the installation cavity 11. A refrigeration space is provided between the refrigeration pipe 2 and the inner wall surface of the installation cavity 11. A cold storage component 3 is installed in one of the refrigeration pipe 2 and the refrigeration space. A gas channel 4 is formed between the refrigeration pipe 2 and the other of the refrigeration space. The gas channel 4 connects the air inlet 12 and the air outlet 13.

[0034] According to the gas cooler of the embodiment of the present application, the gas enters the installation cavity 11 from the air inlet 12, and then flows along the gas channel 4 to the air outlet 13. When the gas flows through the gas channel 4, the gas will contact the tube wall of the refrigeration tube 2, and the tube wall of the refrigeration tube 2 abuts against the cold storage component 3, so that the cold storage component 3 can cool the gas in the gas channel 4, so that the temperature of the gas flowing out of the air outlet 13 will be lower than the temperature of the gas flowing in from the air inlet 12, thereby achieving the cooling of the gas. The present application uses the tube wall of the refrigeration tube 2 as the contact surface with the gas, increases the heat exchange area, and thus improves the cooling efficiency of the gas.

[0035] It can be understood that when a cold storage component 3 is installed in the refrigeration pipe 2 and a gas channel 4 is formed in the refrigeration space, the gas enters the gas channel 4 between the refrigeration pipe 2 and the wall of the installation cavity 11 from the air inlet 12, and the gas transfers the heat to the cold storage component 3 in the refrigeration pipe 2 by heat conduction, that is, the outer wall surface of the refrigeration pipe 2 can exchange heat with the gas, thereby increasing the heat exchange area and improving the cooling efficiency of the high-temperature gas.

[0036] When a gas channel 4 is formed in the refrigeration pipe 2 and a cold storage component 3 is provided in the refrigeration space, the cold storage component 3 is in contact with the outer wall surface of the refrigeration pipe 2. When the gas enters the gas channel 4 in the refrigeration pipe 2 from the air inlet 12, the gas will transfer the heat to the cold storage component 3 between the refrigeration pipe 2 and the wall surface of the installation cavity 11 by heat conduction, that is, the inner wall surface of the refrigeration pipe 2 can exchange heat with the gas, thereby increasing the heat exchange area and improving the cooling efficiency of the high-temperature gas.

[0037] In one embodiment of the present application, Figure 1 and Figure 2 As shown, the refrigeration pipe 2 extends from the air inlet 12 to the air outlet 13 .

[0038] It is understandable that the refrigeration tube 2 extends in the direction from the air inlet 12 to the air outlet 13 , which increases the length of the refrigeration tube 2 , thereby ensuring the tube wall area of ​​the refrigeration tube 2 and increasing the heat exchange area between the gas and the refrigeration tube 2 .

[0039] In one embodiment of the present application, Figure 1 and Figure 2 As shown, the gas cooler includes a plurality of refrigeration tubes 2 , and a gap is provided between two adjacent refrigeration tubes 2 .

[0040] It is understandable that by providing a plurality of refrigeration tubes 2, the gas heat exchange area is further increased, and the gas cooling speed is ensured. A gap is provided between two adjacent refrigeration tubes 2 to ensure that the outer wall surface of the refrigeration tube 2 can exchange heat with the gas or contact with the cold storage member 3, thereby avoiding the situation where the heat exchange area is reduced due to the contact between two adjacent refrigeration tubes 2.

[0041] In one embodiment of the present application, Figure 1 and Figure 2 As shown, a plurality of refrigeration tubes 2 are evenly spaced and arranged in the installation cavity 11 .

[0042] It is understandable that when a cold storage member 3 is provided in the refrigeration tube 2, the gas will flow through the gap between two adjacent refrigeration tubes 2. Since the multiple refrigeration tubes 2 are evenly spaced, the gap between the two adjacent refrigeration tubes 2 is guaranteed to be the same, that is, the amount of gas flowing between the two adjacent refrigeration tubes 2 is also the same, thereby improving the uniformity of gas cooling. When a gas channel 4 is formed in the refrigeration tube 2, the gap between the two adjacent refrigeration tubes 2 can be used to install cold storage materials. Since the multiple refrigeration tubes 2 are evenly spaced, the gap between the two adjacent refrigeration tubes 2 is guaranteed to be the same, and the amount of cold storage materials between the two adjacent refrigeration tubes 2 is the same, thereby ensuring the uniformity of gas cooling.

[0043] In one embodiment of the present application, Figure 1 As shown, a storage cavity is formed in the refrigeration tube 2 for placing the cold storage component 3 , and a gas channel 4 is formed between the refrigeration tube 2 and the inner wall surface of the installation cavity 11 and between two adjacent refrigeration tubes 2 .

[0044] It can be understood that by installing the cold storage component 3 in the storage cavity inside the refrigeration pipe 2, the gas can flow along the space between the refrigeration pipe 2 and the wall of the installation cavity 11 and the space between two adjacent refrigeration pipes 2. In the process of the gas flowing through the refrigeration pipe 2, the gas exchanges heat with the cold storage component 3 through the refrigeration pipe 2 to achieve cooling of the gas.

[0045] In one embodiment of the present application, Figure 1 As shown, the gas cooler includes a porous plate 5, which is fixedly installed in the installation cavity 11. The porous plate 5 is formed with a plurality of channels, some of which are installed with refrigeration pipes 2.

[0046] It is understandable that the refrigeration tubes 2 are installed in some holes of the porous plate 5, and the porous plate 5 can limit and fix the refrigeration plate. The remaining holes without the refrigeration tubes 2 can be used as gas channels 4, so that the gas can flow through the refrigeration tubes 2 for heat exchange.

[0047] It can be understood that the plurality of refrigeration tubes 2 are installed at the porous plate 5 at even intervals.

[0048] In one embodiment of the present application, Figure 2 As shown, a gas channel 4 is formed in the refrigeration tube 2 , and a cold storage component 3 is provided between the refrigeration tube 2 and the inner wall surface of the installation cavity 11 and / or between two adjacent refrigeration tubes 2 .

[0049] It is understandable that a gas channel 4 is formed in the refrigeration tube 2 so that the gas can flow along the air inlet 12, the gas channel 4 and the air outlet 13. Since the cold storage component 3 is installed between the refrigeration tube 2 and the inner wall surface of the installation cavity 11 and between two adjacent refrigeration tubes 2, the cold storage component 3 can exchange heat with the gas through the refrigeration tube 2 to achieve cooling of the gas.

[0050] In one embodiment of the present application, Figure 2 As shown, the gas cooler includes an upper mounting plate 6 and a lower mounting plate 7, both of which are fixedly mounted in the mounting cavity 11, and the refrigeration pipe 2 is installed between the upper mounting plate 6 and the lower mounting plate 7, and air holes are provided at the connection between the upper mounting plate 6 and the refrigeration pipe 2 and at the connection between the lower mounting plate 7 and the refrigeration pipe 2, and the air holes are connected to the gas channel 4.

[0051] It is understandable that the refrigeration pipe 2 can be limited and fixed by the upper mounting plate 6 and the lower mounting plate 7, so that the refrigeration pipe 2 is stably installed in the mounting cavity 11. At the same time, air holes are provided at the connection between the upper mounting plate 6 and the refrigeration pipe 2 and at the connection between the lower mounting plate 7 and the refrigeration pipe 2, so that gas can enter and exit the gas channel 4 through the air holes, ensuring the smooth flow of gas.

[0052] In one embodiment of the present application, Figure 1 and Figure 2 As shown, a protective layer 8 is provided on the outer wall surface of the housing 1 .

[0053] It can be understood that, by providing the protective layer 8 on the outer wall surface of the shell 1, the protective layer 8 can increase the impact resistance of the shell 1, thereby improving the impact resistance of the gas cooler.

[0054] In one embodiment of the present application, the thermal conductivity of the refrigeration tube 2 is 0.01 W / (m·K)-1.5 W / (m·K).

[0055] It can be understood that, by setting the thermal conductivity of the refrigeration tube 2 , the thermal conductivity of the refrigeration tube 2 is ensured, so that the gas can exchange heat with the cold storage component 3 through the refrigeration tube 2 .

[0056] It is understandable that the refrigeration tube 2 made of a material with low thermal conductivity can control the heat exchange rate between the gas and the cold storage material while ensuring that the gas can exchange heat with the cold storage material through the refrigeration tube 2, thereby achieving a small cooling of the high-temperature gas. At the same time, with the larger heat exchange area of ​​the refrigeration tube 2, the temperature of the high-temperature gas can be reduced to a suitable value. In this embodiment, the heat exchange area is increased by the refrigeration tube 2, and the heat exchange rate between the gas and the cold storage material is controlled by setting the thermal conductivity of the refrigeration tube 2, which can reduce the gas temperature drop in the early and late stages of the service life of the gas cooler, improve the utilization rate of the cold storage component 3, and reduce the ineffective loss of the cold storage component 3.

[0057] According to an embodiment of the second aspect of the present application, the respirator comprises the above-mentioned gas cooler.

[0058] According to the respirator of the embodiment of the present application, the gas enters the installation cavity 11 from the air inlet 12, and then flows along the gas channel 4 to the air outlet 13. When the gas flows through the gas channel 4, the gas will contact the tube wall of the refrigeration tube 2, and the tube wall of the refrigeration tube 2 abuts against the cold storage component 3, and then the cold storage component 3 can cool the gas in the gas channel 4, so that the temperature of the gas flowing out of the air outlet 13 will be lower than the temperature of the gas flowing in from the air inlet 12, thereby achieving the cooling of the gas. The present application uses the tube wall of the refrigeration tube 2 as the contact surface with the gas, increases the heat exchange area, and thus improves the cooling efficiency of the gas.

[0059] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A gas cooler, characterized in that: include: A shell (1), the shell (1) being formed with a mounting cavity (11), a first end of the shell (1) being provided with an air inlet (12) communicating with the mounting cavity (11), and a second end of the shell (1) being provided with an air outlet (13) communicating with the mounting cavity (11); A refrigeration pipe (2) is arranged in the installation cavity (11); a refrigeration space is provided between the refrigeration pipe (2) and the inner wall surface of the installation cavity (11); a cold storage component (3) is installed in one of the refrigeration pipe (2) and the refrigeration space; a gas channel (4) is formed between the refrigeration pipe (2) and the other of the refrigeration space; the gas channel (4) communicates with the air inlet (12) and the air outlet (13).

2. The gas cooler according to claim 1, characterized in that The refrigeration pipe (2) extends in a direction from the air inlet (12) to the air outlet (13).

3. The gas cooler according to claim 1, characterized in that The gas cooler comprises a plurality of refrigeration tubes (2), and a gap is provided between two adjacent refrigeration tubes (2).

4. The gas cooler according to claim 3, characterized in that The plurality of refrigeration tubes (2) are evenly spaced and arranged in the installation cavity (11).

5. The gas cooler according to any one of claims 1 to 4, characterized in that: A storage cavity is formed in the refrigeration tube (2), and the storage cavity is used to place the cold storage component (3). The gas channel (4) is formed between the refrigeration tube (2) and the inner wall surface of the installation cavity (11) and between two adjacent refrigeration tubes (2).

6. The gas cooler according to claim 5, characterized in that The gas cooler comprises a porous plate (5), wherein the porous plate (5) is fixedly installed in the installation cavity (11), and the porous plate (5) is formed with a plurality of channels, and at least some of the channels are installed with the refrigeration pipes (2).

7. The gas cooler according to any one of claims 1 to 4, characterized in that: The gas channel (4) is formed in the refrigeration tube (2), and the cold storage component (3) is provided between the refrigeration tube (2) and the inner wall surface of the installation cavity (11) and / or between two adjacent refrigeration tubes (2).

8. The gas cooler according to claim 7, characterized in that The gas cooler comprises an upper mounting plate (6) and a lower mounting plate (7), wherein the upper mounting plate (6) and the lower mounting plate (7) are both fixedly mounted in the mounting cavity (11), and the refrigeration pipe (2) is mounted between the upper mounting plate (6) and the lower mounting plate (7), and air holes are provided at the connection between the upper mounting plate (6) and the refrigeration pipe (2) and at the connection between the lower mounting plate (7) and the refrigeration pipe (2), and the air holes are connected to the gas channel (4).

9. The gas cooler according to any one of claims 1 to 4, characterized in that: The outer wall surface of the housing (1) is provided with a protective layer (8); and / or, The thermal conductivity of the refrigeration tube (2) is 0.01 W / (m·K)-1.5 W / (m·K).

10. A respirator, characterized in that: Comprising a gas cooler as claimed in any one of claims 1 to 9.

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