Drain structure for harmful gas removal tank

Abstract

The application relates to a drainage structure for a harmful gas removal tank, which comprises a gas-water separation part and an exhaust pipe, the gas-water separation part is arranged on the bottom of the purification tank and communicates with the tank, the gas-water separation part and the gas outlet communicate with each other through the exhaust pipe, the gas-water separation part comprises a flow guide chamber, a condenser and at least one set of refrigerators, the flow guide chamber is fixedly connected to the bottom of the purification tank, the top and the bottom of the flow guide chamber are respectively provided with a gas inlet and a drainage outlet, the condenser is arranged in the inner cavity of the flow guide chamber, and the top of the condenser communicates with the gas inlet. Through the arrangement of the gas-water separation part, the water in the airflow can be condensed in the gas-water separation part after being purified by water spraying and absorbent in the absorbent box, and then the water can be discharged, so that the airflow passing through the purification tank can be better dehumidified, and additional dehumidification equipment can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of diving facilities, and in particular to a drainage structure for a harmful gas removal tank. Background Art

[0002] Deep saturation diving involves prolonged underwater exposure to depths exceeding 120 meters (or even 300-500 meters). This type of operation requires divers to first spend an extended period in a hyperbaric chamber to acclimate to the high-pressure environment at great depths before returning to work at depths, which can last up to a month. According to diving medicine, the atmosphere within these chambers typically consists of a mixture of helium, oxygen, and small amounts of carbon dioxide, water, and nitrogen. The chamber pressure can exceed 120 atmospheres (even reaching depths of 300-500 meters), depending on the situation. While acclimatizing and resting in the chamber, divers need to ingest oxygen and exhale carbon dioxide to maintain their health. Under high pressure, the human body is extremely sensitive to the partial pressure of carbon dioxide, which typically cannot exceed 0.5 kPa. Exceeding this threshold can threaten the health and life of those inside. Therefore, hazardous gas removal devices are required within hyperbaric chambers to remove gases such as carbon dioxide to protect the physical and mental health of those inside.

[0003] In the prior art, harmful gas removal devices used in environmental control systems for deep saturation chambers usually spray the gas first, and then input the gas into an absorption tank to use the adsorbent in the absorption tank to adsorb harmful gases such as carbon dioxide.

[0004] During use of the harmful gas removal device for the environmental control system of a large-depth saturation chamber in the prior art, the airflow discharged after the harmful gas removal tank absorbs the harmful gas will contain a lot of moisture. Therefore, additional dehumidification equipment is required to dehumidify the airflow before it can continue to circulate in the high-pressure environment chamber. Summary of the Invention

[0005] In order to improve the problem that the airflow discharged after the harmful gas removal tank absorbs harmful gases contains more moisture, and therefore additional dehumidification equipment is required to dehumidify the airflow, the present application provides a drainage structure for a harmful gas removal tank.

[0006] The present application provides a drainage structure for a harmful gas removal tank using the following technical solutions:

[0007] The harmful gas removal tank drainage structure comprises a purification tank, a top cover, an air inlet, an air outlet and an absorbent box, the upper end of the purification tank is formed with an opening, the top cover is arranged on the upper end of the purification tank, and the opening of the purification tank can be opened or closed through the activity of the top cover, the absorbent box is detachably arranged in the inner cavity of the purification tank, the air inlet and the air outlet are formed on the outer wall of the purification tank, and the air inlet and the air outlet respectively guide the airflow before purification and the airflow after purification, and the harmful gas removal tank drainage structure further comprises a gas-water separation part and an exhaust pipe, the gas-water separation part is arranged on the bottom of the purification tank and communicates with the bottom, the gas-water separation part and the air outlet are communicated through the exhaust pipe, the gas-water separation part comprises a flow guide chamber, a condenser and at least one set of refrigerators, the flow guide chamber is fixedly connected to the bottom of the purification tank, the top and bottom of the flow guide chamber are respectively formed with the air inlet and the drainage port, the condenser is arranged in the inner cavity of the flow guide chamber, the top of the condenser communicates with the air inlet, at least one set of the refrigerators is arranged in the inner cavity of the flow guide chamber, the side of the refrigerator facing the condenser is in contact with the condenser, and the condenser is made of heat-conducting metal material, and the lower end of the exhaust pipe extends into the inner cavity of the flow guide chamber.

[0008] Further, the condenser comprises a condensing pipe and a plurality of air guide holes, the plurality of air guide holes are formed on the inner side of the condensing pipe, and the two ends of each air guide hole respectively penetrate the upper end and the lower end of the condensing pipe.

[0009] Further, the refrigerator comprises a heat-conducting block, a semiconductor refrigerator and a protective cover, the heat-conducting block is made of heat-conducting metal material, the heat-conducting block is formed with a placing groove for arranging the semiconductor refrigerator, the protective cover covers the placing groove and is fixed with the heat-conducting block through bolt connection, the side of the heat-conducting block facing the condenser is formed with a contact area, and the contact area is in contact with the outer wall of the condenser.

[0010] Further, the gas-water separation part further comprises a positioning connecting sleeve and a rotary driving unit, the upper end of the positioning connecting sleeve is connected with the flow guide chamber, the positioning connecting sleeve communicates with the air inlet, the lower end of the positioning connecting sleeve is rotationally connected with the upper end of the condenser, and the rotary driving unit is arranged on the flow guide chamber and drives the rotation of the condenser.

[0011] Further, the flow guide chamber comprises a drainage seat, a sealing cover and a sealing ring, the sealing cover is detachably embedded in the inner top of the drainage seat, and the sealing cover and the drainage seat are sealingly connected by the sealing ring, the middle part of the sealing cover is formed with a protrusion downward, the inner wall of the protrusion is provided with internal threads, and the inner cavity of the protrusion forms an air inlet of the flow guide chamber, and the lower end of the drainage seat forms a water outlet.

[0012] Further, the positioning connecting sleeve comprises a threaded segment, a ring sleeve segment and an annular groove, the upper end of the threaded segment is threadedly connected with the protrusion of the sealing cover, the ring sleeve segment is formed at the lower end of the drainage seat, the annular groove is formed in the inner middle part of the ring sleeve segment, and the top of the outer wall of the condenser pipe is fixedly connected with a positioning piece, and the positioning piece is rotatably inserted into the annular groove.

[0013] Further, the rotary drive unit comprises a motor and two intermeshing bevel gears, the motor is fixedly installed on the outer side of the drainage seat, the output end of the motor extends into the drainage seat and is connected with one bevel gear, and the other bevel gear is fixedly sleeved on the outer wall of the condenser pipe.

[0014] Further, the gas-water separation part further comprises a flow guide plate, the flow guide plate is fixedly inclined at the lower end in the inner cavity of the flow guide chamber, and the flow guide plate is formed with a gap at a position close to the water outlet, so that the water flowing through the gap and the water outlet can be guided out.

[0015] The beneficial technical effects of the present application are that: through the arrangement of the gas-water separation part, the airflow after being purified by water spraying and adsorbent in the adsorbent box can be condensed and guided out at the gas-water separation part, thereby better dehumidifying the airflow flowing through the purification tank, and avoiding the need for additional dehumidifying equipment;

[0016] Through the cooperation between the rotatable condenser and the plurality of refrigerators in the gas-water separation part, the condenser can be more uniformly cooled by the refrigerators, so that the water in the airflow flowing through the condenser is more fully condensed into water droplets and guided out;

[0017] Through the arrangement of the plurality of air guide holes in the condenser pipe, the airflow flowing through the condenser can more fully contact the condenser pipe, thereby improving the effect of condensing water in the airflow into water droplets. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a whole structure schematic view of the water drainage structure of the harmful gas removal tank of the embodiment of the present application;

[0019] Figure 2 is Figure 1A structure diagram of the harmful gas removal tank drainage structure after cutting the gas-water separation part;

[0020] Figure 3 is Figure 1 A structure diagram of the harmful gas removal tank drainage structure after cutting the gas-water separation part;

[0021] Figure 4 is Figure 3 A structure diagram of the harmful gas removal tank drainage structure after cutting the gas-water separation part;

[0022] Figure 5 is a structure diagram of the positioning connecting sleeve in the embodiment of the present application;

[0023] Figure 6 is a structure diagram of the refrigerator in the embodiment of the present application.

[0024] Fig. 10, purification tank; 20, top cover; 30, air inlet; 40, air outlet; 50, absorbent box; 60, gas-water separation part; 61, flow guide chamber; 611, drainage seat; 612, sealing cover; 613, sealing ring; 62, positioning connecting sleeve; 621, threaded section; 622, ring sleeve section; 623, annular groove; 63, condenser; 631, condensing pipe; 632, air guide hole; 633, positioning sheet; 64, refrigerator; 641, heat-conducting block; 6411, placement groove; 6412, wire passing hole; 6413, contact area; 6414, support rod; 642, semiconductor refrigeration sheet; 6421, wire; 643, protective cover; 65, rotary drive unit; 70, exhaust pipe. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] The harmful gas removal tank drainage structure is disclosed in the embodiments of the present application. Referring to Figure 1 and Figure 2The drain structure for the harmful gas removal tank can include a purification tank 10, a top cover 20, an air inlet 30, an air outlet 40, an absorbent box 50, an air-water separation part 60, and an exhaust pipe 70. The absorbent box 50 is detachably disposed in the inner cavity of the purification tank 10, and the absorbent box 50 can place an absorbent for absorbing harmful gases such as carbon dioxide. The upper end of the purification tank 10 is formed with an opening, the top cover 20 is installed and disposed at the upper end of the purification tank 10, and the opening of the purification tank 10 can be opened or closed by the activity of the top cover 20, so that the maintenance personnel can replace the absorbent box 50. The air inlet 30 and the air outlet 40 are both formed on the outer wall of the purification tank 10, and the air inlet 30 and the air outlet 40 can respectively guide the airflow before purification and the airflow after purification. The air-water separation part 60 is installed and disposed at the bottom of the purification tank 10 and communicates with it, the airflow after purification flows into the air-water separation part 60, and the moisture in the airflow is condensed into water droplets and discharged; the air-water separation part 60 and the air outlet 40 are communicated by the exhaust pipe 70, the airflow after dehumidification treatment can flow to the air outlet 40 through the exhaust pipe 70, and can be discharged by the air outlet 40.

[0027] Referring to Figure 3 and Figure 4The air-water separation part 60 can include a flow guide chamber 61, a positioning connecting sleeve 62, a condenser 63, at least one set of refrigerators 64, and a rotary driving unit 65. The flow guide chamber 61 is fixedly connected to the bottom of the purification tank 10, and the top and bottom of the flow guide chamber 61 are respectively formed with an air inlet and a water outlet. The condenser 63 is installed in the inner cavity of the flow guide chamber 61, and the top of the condenser 63 is communicated with the air inlet, so that the air flow flowing into the air-water separation part 60 through the air inlet can be introduced into the condenser 63. The lower end of the exhaust pipe 70 extends into the inner cavity of the flow guide chamber 61, and the air flow discharged in the condenser 63 can flow into the air outlet 40 through the exhaust pipe 70 and be discharged. The at least one set of refrigerators 64 is installed in the inner cavity of the flow guide chamber 61, and when the number of refrigerators 64 is two or more sets, the refrigerators 64 are annularly arranged outside the condenser 63. The side of the refrigerator 64 facing the condenser 63 is in close contact with the condenser 63, and the condenser 63 is made of heat-conducting metal material, so that the condenser 63 can be cooled by the refrigerator 64, and the moisture in the air flow flowing through the condenser 63 can be condensed into water droplets. The upper end of the positioning connecting sleeve 62 is connected with the flow guide chamber 61, and the positioning connecting sleeve 62 is communicated with the air inlet, and the lower end of the positioning connecting sleeve 62 is rotatably connected with the upper end of the condenser 63, so that the positioning connecting sleeve 62 can guide the transportation of the air flow between the air inlet of the flow guide chamber 61 and the condenser 63; and the positioning connecting sleeve 62 can also be used to support the rotary movement of the condenser 63. The rotary driving unit 65 is installed on the flow guide chamber 61, and the rotary driving unit 65 can be used to drive the condenser 63 to rotate, so that the condenser 63 can be in uniform contact with the plurality of refrigerators 64, and the moisture in the air flow transported in the condenser 63 can be more fully condensed into water droplets.

[0028] Referring to Figure 4 The flow guide chamber 61 can include a flow guide seat 611, a sealing cover 612, and a sealing ring 613. The main body part of the flow guide seat 611 can be provided in a conical shape, so that the flow guide seat 611 can converge the flow downward; the lower end of the flow guide seat 611 is provided in a circular tube shape, and the water outlet is formed at the lower end of the flow guide seat 611. The air-water separation part 60 can further include a flow guide plate (not shown in the figure) provided in the circular tube-shaped part of the lower end of the flow guide seat 611, which is fixedly inclined therein, and the flow guide plate is formed with a gap at the position close to the water outlet, so that the water flowing through the gap and the water outlet can be discharged, and the air flow can be mainly discharged through the exhaust pipe 70 by reflection of the flow guide plate. The sealing cover 612 is detachably embedded in the inner top of the flow guide seat 611, and the sealing cover 612 and the flow guide seat 611 are sealingly connected by the sealing ring 613. The middle part of the sealing cover 612 is formed with a protrusion downward, the inner cavity of the protrusion forms the air inlet of the flow guide chamber 61, and the inner wall of the protrusion is further provided with internal threads for matching the installation of the positioning connecting sleeve 62.

[0029] Referring to Figure 4 and Figure 5 , the positioning connector 62 can include a threaded segment 621, a ring segment 622, and an annular groove 623. The upper end of the threaded segment 621 can be screwed with the protrusion of the sealing cover 612 to complete the connection and fixation. The ring segment 622 is formed at the lower end of the flow guide base 611, and the annular groove 623 is formed in the inner middle part of the ring segment 622, which is used to cooperate with the rotating action of the condenser 63.

[0030] Referring to Figure 4 , the condenser 63 can include a condensing pipe 631, a plurality of air guide holes 632, and a positioning sheet 633. The plurality of air guide holes 632 are formed on the inner side of the condensing pipe 631, and the two ends of each air guide hole 632 respectively penetrate the upper end and the lower end of the condensing pipe 631, so that when the airflow flows through the condenser 63, the airflow can be divided and flowed by using the plurality of air guide holes 632, and the contact between the airflow and the condensing pipe 631 is increased, so that the moisture can be more condensed into water droplets. The top of the outer wall of the condensing pipe 631 is fixedly connected with the positioning sheet 633, which is rotatably inserted into the annular groove 623, so that the ring segment 622 can support the condenser 63, and the rotation of the positioning sheet 633 in the annular groove 623 can make the condenser 63 rotate as a whole.

[0031] Referring to Figure 3 and Figure 6 , the refrigerator 64 can include a heat-conducting block 641, a semiconductor refrigeration sheet 642, and a protective cover 643. The heat-conducting block 641 is made of heat-conducting metal material, and the heat-conducting block 641 is formed with a placing groove 6411 for installing the semiconductor refrigeration sheet 642. After the semiconductor refrigeration sheet 642 is placed in the placing groove 6411, the wire 6421 thereof can pass through the wire hole 6412 to the outside of the heat-conducting block 641 and be used for connecting with the power supply. The protective cover 643 covers the placing groove 6411 and is fixedly connected with the heat-conducting block 641 by bolts, so that the protective cover 643 covers and protects the semiconductor refrigeration sheet 642. The semiconductor refrigeration sheet is a common refrigeration device in the prior art, and the semiconductor refrigeration sheet uses Peltier effect, that is, when an electric current passes through a loop composed of different conductors, in addition to irreversible Joule heat, heat absorption and heat release will occur at the joints of different conductors according to the direction of the electric current. Here, the semiconductor refrigeration sheet will not be described in detail.

[0032] In this embodiment, the side of the heat-conducting block 641 facing the condenser 63 is formed with a contact area 6413, which is shaped to match the shape of the outer wall of the condenser 63, so that it can fit the outer wall of the condenser 63. The outer wall of the heat-conducting block 641 can also be fixedly connected with a support rod 6414 which supports it in the flow guide chamber 61.

[0033] Referring to Figure 4The rotating driving unit 65 can include a motor and two intermeshing bevel gears. The motor is fixedly installed outside the flow guide base 611, the output end of the motor extends into the flow guide base 611 and is connected with one bevel gear, and the other bevel gear is fixedly sleeved on the outer wall of the condenser pipe 631, so that when the output end of the motor rotates, the condenser 63 can be rotated by the intermeshing of the two bevel gears. It can be understood that the rotating driving unit 65 can also be implemented by using other corresponding transmission structures in the prior art in addition to the above structure, for example, a synchronous belt is driven by a motor, and two transmission wheels at both ends of the synchronous belt are respectively connected with the output end of the motor and the condenser pipe 631.

[0034] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A drainage structure for a harmful gas removal tank, used for processing the outlet airflow of a harmful gas removal tank for an environmental control system of a large-depth saturation tank, comprising a purification tank (10), a top cover (20), an air inlet (30), an air outlet (40) and an absorbent box (50), wherein the upper end of the purification tank (10) is formed with an opening, the top cover (20) is installed at the upper end of the purification tank (10), and the opening of the purification tank (10) can be opened or closed by the movement of the top cover (20), the absorbent box (50) is detachably arranged in the inner cavity of the purification tank (10), the air inlet (30) and the air outlet (40) are both formed on the outer wall of the purification tank (10), and the air inlet (30) and the air outlet (40) respectively introduce the airflow before purification and derive the airflow after purification, and are characterized in that The invention also includes an air-water separation part (60) and an exhaust pipe (70), wherein the air-water separation part (60) is installed at the bottom of the purification tank (10) and communicated therewith, and the air-water separation part (60) is communicated with the air outlet (40) by means of the exhaust pipe (70), wherein the air-water separation part (60) includes a guide chamber (61), a condenser (63) and at least one group of refrigerators (64), wherein the guide chamber (61) is fixedly connected to the bottom of the purification tank (10), and the top and bottom of the guide chamber (61) are respectively formed with an air inlet and a drain port, the condenser (63) is installed in the inner cavity of the guide chamber (61), and the top of the condenser (63) is communicated with the air inlet, and at least one group of refrigerators (64) is installed in the inner cavity of the guide chamber (61), and the side of the refrigerator (64) facing the condenser (63) is connected to the refrigerator (64). The condenser (63) is in close contact with each other, and the condenser (63) is configured to be a heat-conducting metal material. The lower end of the exhaust pipe (70) extends into the inner cavity of the guide chamber (61); the condenser (63) includes a condensation tube (631) and a plurality of air guide holes (632). The plurality of air guide holes (632) are formed on the inner side of the condensation tube (631), and the two ends of each air guide hole (632) respectively penetrate the inner side of the condensation tube (631). The upper end and the lower end of the refrigerator (64) include a heat-conducting block (641), a semiconductor cooling plate (642) and a protective cover (643); the heat-conducting block (641) is configured to be a heat-conducting metal material, and a placement groove (6411) for mounting the semiconductor cooling plate (642) is formed on the heat-conducting block (641); the protective cover (643) covers the placement groove (6411) and is fixed to the heat-conducting block (641) by bolts; The gas-water separation part (60) further comprises a positioning connection sleeve (62) and a rotation drive unit (65), wherein the upper end of the positioning connection sleeve (62) is connected to the guide chamber (61), and the positioning connection sleeve (62) is communicated with the air inlet, and the lower end of the positioning connection sleeve (62) is rotationally connected to the upper end of the condenser (63), and the rotation drive unit (65) is installed on the guide chamber (61) and drives the rotation of the condenser (63); the guide chamber (61) comprises a guide seat (611), a sealing cover (612) and a sealing ring (613), wherein the sealing cover (612) is detachably embedded in the inner top of the guide seat (611), and the sealing cover (612) and the guide seat (611) are sealed by the sealing ring (613). The middle part of the sealing cover (612) is formed with a protrusion pointing downward, the inner wall of the protrusion is provided with an internal thread, and the inner cavity of the protrusion forms the air inlet of the guide chamber (61), and the lower end of the drainage seat (611) forms a drain outlet; the positioning connection sleeve (62) includes a threaded section (621), a ring section (622) and an annular groove (623), the upper end of the threaded section (621) is threadedly connected to the protrusion of the sealing cover (612), the ring section (622) is formed at the lower end of the drainage seat (611), and the annular groove (623) is formed in the inner middle part of the ring section (622), and the top of the outer wall of the condenser tube (631) is fixedly connected with a positioning piece (633), and the positioning piece (633) can be rotatably inserted into the annular groove (623).

2. A drainage structure for a harmful gas removal tank according to claim 1, characterized in that: A contact area (6413) is formed on one side of the heat conducting block (641) facing the condenser (63), and the contact area (6413) is in contact with the outer wall of the condenser (63).

3. A drainage structure for a harmful gas removal tank according to claim 2, characterized in that: The rotary drive unit (65) includes a motor and two mutually meshing bevel gears. The motor is mounted and fixed on the outside of the drainage seat (611). The output end of the motor extends into the drainage seat (611) and is connected to one bevel gear. The other bevel gear is sleeved and fixed on the outer wall of the condenser tube (631).

4. The drainage structure for a harmful gas removal tank according to claim 1, characterized in that: The gas-water separation part (60) further comprises a guide plate, which is fixed at a lower end in the inner cavity of the guide chamber (61) in a downwardly inclined manner. A notch is formed in the guide plate near the drain outlet, so that water can flow through the notch and the drain outlet and be discharged.

Images