A deep-sea carbon dioxide in-situ detection device

Abstract

This utility model relates to the field of deep-sea carbon dioxide detection technology, specifically a deep-sea carbon dioxide in-situ detection device, including a housing. A rear cover is slidably connected to the right end of the housing, and a watertight socket is provided at the right end of the rear cover. A circuit board is slidably connected inside the housing. A temperature and humidity sensor, a carbon dioxide concentration sensor, and a pressure sensor are fixed to the left end of the circuit board. A positioning shell is fixed to the left end of the housing, and a front cover is tightly fitted to the left end of the positioning shell. An air intake plate is fixed inside the front cover, and a hydrophobic membrane is tightly fitted to the left end of the air intake plate. A pressure cap is tightly fitted to the left end of the front cover. This utility model uses the front cover to position the air intake plate. The hydrophobic membrane can block seawater outside the membrane while allowing carbon dioxide gas to smoothly enter the housing. The carbon dioxide gas that has permeated through the hydrophobic membrane is further diffused through perforated channels, thereby ensuring the uniformity of gas delivery and thus ensuring the detection effect.

Description

Technical Field

[0001] This utility model belongs to the field of deep-sea carbon dioxide detection technology, specifically a deep-sea carbon dioxide in-situ detection device. Background Technology

[0002] The deep sea is a crucial reservoir for the global carbon cycle. Submarine volcanic activity, cold seeps, leakage of geologically sealed carbon dioxide, and marine biogeochemical processes all contribute to dynamic changes in carbon dioxide concentration in the deep-sea environment. Accurately detecting the distribution and migration patterns of carbon dioxide in the deep sea is of vital importance for revealing the mechanisms of the marine carbon cycle, assessing the safety of geological storage, and monitoring the evolution of seabed ecosystems.

[0003] However, most existing carbon dioxide concentration detection methods require manual intervention, resulting in low detection accuracy and efficiency. Furthermore, existing detection devices often have poor sealing, allowing large amounts of seawater to enter during detection, thus reducing the effectiveness of the detection. To address these issues, this invention presents a deep-sea carbon dioxide in-situ detection device. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a deep-sea carbon dioxide in-situ detection device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep-sea carbon dioxide in-situ detection device, comprising a housing, a rear cover slidably connected to the right end of the housing, a positioning nut tightly fitted to the right end of the rear cover, a watertight socket fixed to the right end of the positioning nut, a circuit board slidably connected inside the housing, a temperature and humidity sensor fixed to the left end of the circuit board, a carbon dioxide concentration sensor fixed to the top of the temperature and humidity sensor, a pressure sensor fixed to the top of the carbon dioxide concentration sensor, a positioning shell fixed to the left end of the housing, a front cover tightly fitted to the left end of the positioning shell, an air intake plate fixed inside the front cover, a hydrophobic membrane tightly fitted to the left end of the air intake plate, a pressure cap tightly fitted to the left end of the front cover, a pressure ring fixed inside the pressure cap, and the right end of the pressure ring tightly fitted to the hydrophobic membrane.

[0006] Preferably, the watertight socket is externally fixed with a sealing thread, and the right end of the watertight socket is fixed with several miniature eight-pin connectors, one of which is a power supply connector. The left end of the positioning nut is slidably connected with a sealing strip, the left end of the sealing strip is tightly fitted with the back cover, the left end of the positioning nut is fixed with a screw, the left end of the screw is fixed with a connecting wire, and the connecting wire is fixedly connected to the circuit board.

[0007] Preferably, the screw is externally engaged with an internal thread, and a sealing cap is fixed to the outside of the internal thread. The sealing cap is externally fixedly connected to the rear cover, and a sealing groove is provided inside the sealing cap. The right end of the rear cover is fastened to the housing by a rear cover screw. The sealing cap has several rear cover connection holes on its outside. The housing is also fastened to the rear cover connection holes inside it by several slotted countersunk screws. The sealing cap also has a rear cover sealing groove on its outside. A sealing ring is tightly fitted inside the rear cover sealing groove, and the sealing ring is tightly fitted to the housing.

[0008] Preferably, the positioning shell at the left end of the housing is provided with a positioning groove, and a positioning ring is slidably connected inside the positioning groove. The positioning ring is fixedly connected to the air intake plate at its left end. The right end of the air intake plate is provided with a plurality of air intake holes, and the left end of the air intake plate is provided with a plurality of perforated channels.

[0009] Preferably, the left end of the positioning ring is tightly fitted with a front cover sealing ring, the outside of the front cover sealing ring is tightly fitted with the positioning groove, the left end of the front cover is tightly fitted with a pressure cap sealing ring, the left end of the pressure cap sealing ring is tightly fitted with the pressure cap, and the pressure cap, the front cover and the positioning shell are fastened together by a number of pressure cap bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention uses a rear cover to position a watertight socket. The positioning nut ensures the seal between the rear cover and the watertight socket, preventing seawater from entering the housing and thus ensuring detection accuracy. The miniature eight-pin connector and connecting wire allow the circuit board to communicate with external devices while providing the necessary power. The rear cover screws secure the rear cover to the housing, and the countersunk screws fix the sealing cover to the housing, ensuring the overall sealing of the device. The countersunk screws and the rear cover connection hole further ensure the stability of the rear cover and housing. The sealing ring ensures the seal between the sealing cover and the housing, further guaranteeing the overall sealing of the device, thus ensuring detection accuracy and detection effectiveness.

[0012] This invention uses a temperature and humidity sensor to monitor the internal temperature and humidity of the housing, a carbon dioxide concentration sensor to monitor the internal carbon dioxide concentration, and a pressure sensor to monitor the internal pressure. Simultaneously, the internal thread and screw mechanism ensure a secure connection between the watertight socket and the rear cover, facilitating disassembly of the entire device while further guaranteeing its airtightness and thus ensuring detection accuracy. Furthermore, the sealing thread and external plug ensure the safety of the miniature eight-pin connector, thereby extending the overall lifespan of the device and conserving resources.

[0013] This invention uses a front cover to position the air intake plate. The hydrophobic membrane can block seawater from entering the shell while allowing carbon dioxide gas to enter smoothly. The carbon dioxide gas then diffuses through the perforated channel, ensuring uniform gas delivery and thus guaranteeing detection performance. At the same time, the air intake hole ensures that carbon dioxide enters the shell evenly, thus guaranteeing detection accuracy and improving detection efficiency. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a schematic diagram of the right end of the entire utility model;

[0018] Figure 3 This is a schematic diagram of the left end of the entire utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the right end of the present invention.

[0021] Figure 6 This is a schematic cross-sectional view of the left end of the entire utility model;

[0022] Figure 7 This is an overall exploded view of the present invention;

[0023] Figure 8 This is a schematic diagram of the left end of the front cover of this utility model;

[0024] Figure 9 This is a schematic diagram of the right end of the front cover of this utility model.

[0025] Figure 10 This is a schematic diagram of the left end of the back cover of this utility model.

[0026] In the diagram: 1-Housing; 2-Rear cover; 3-Watertight connector; 4-Front cover; 5-Grip cap; 6-Hydrophobic membrane; 101-Slotted countersunk screw; 102-Positioning shell; 103-Positioning groove; 104-Circuit board; 105-Temperature and humidity sensor; 106-Carbon dioxide concentration sensor; 107-Barometric pressure sensor; 201-Rear cover screw; 202-Sealing groove; 203-Internal thread; 204-Sealing cap; 205-Rear 206 - Rear cover sealing groove; 207 - Sealing ring; 301 - Positioning nut; 302 - Sealing thread; 303 - Screw; 304 - Sealing strip; 305 - Miniature eight-pin connector; 306 - Connecting wire; 401 - Positioning ring; 402 - Front cover sealing ring; 403 - Air inlet plate; 404 - Drilled channel; 405 - Air inlet hole; 501 - Pressure cap bolt; 502 - Pressure ring; 503 - Pressure cap sealing ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example 1, by Figures 1-4 , Figure 7The present invention includes a housing 1 made of alloy material, which supports the entire device. A rear cover 2, also made of alloy material, is slidably connected to the right end of the housing 1. The rear cover 2 is used to position the watertight socket 3. A positioning nut 301, also made of alloy material, is tightly fitted to the right end of the rear cover 2. The positioning nut 301 ensures the seal between the rear cover 2 and the watertight socket 3, preventing seawater from entering the housing 1 and thus ensuring the accuracy of the detection. The watertight socket 3 is fixed to the right end of the positioning nut 301. The watertight socket 3 is used to position the miniature eight-pin connector 305. A circuit board 104, made of alloy material, is slidably connected inside the housing 1. The circuit board 104 is used to position the temperature and humidity sensor 105. The temperature and humidity sensor 105 is fixed to the left end of the circuit board 104. The temperature and humidity sensor 105 monitors the temperature and humidity inside the housing 1. A carbon dioxide concentration sensor 106 is fixed to the top of the temperature and humidity sensor 105. The carbon dioxide concentration sensor 106 monitors the carbon dioxide concentration inside the housing 1. A pressure sensor 107 is fixed to the top of the housing 1. The pressure sensor 107 is used to monitor the internal air pressure of the housing 1. A positioning shell 102 is fixed to the left end of the housing 1. The positioning shell 102 is made of alloy material and is used to position the front cover 4. The left end of the positioning shell 102 is tightly fitted to the front cover 4. The front cover 4 is made of alloy material and is used to position the air intake plate 403. The air intake plate 403 is fixed inside the front cover 4. The air intake plate 403 is made of alloy material and facilitates the supply of carbon dioxide to the housing 1. A hydrophobic membrane 6 is tightly attached to the left end of the 03. The hydrophobic membrane 6 is made of alloy material and has several hydrophobic pores. The hydrophobic membrane 6 can block seawater from entering the outside of the hydrophobic membrane 6 while allowing carbon dioxide gas to enter the interior of the shell 1 smoothly. A pressure cover 5 is tightly attached to the left end of the front cover 4. The pressure cover 5 is made of alloy material and is used to position the pressure ring 502. The pressure ring 502 is fixed inside the pressure cover 5. The pressure ring 502 is made of alloy material and is used to position the hydrophobic membrane 6. The right end of the pressure ring 502 is tightly attached to the hydrophobic membrane 6.

[0029] Example 2, based on Example 1, combined with... Figures 5-6 , Figures 8-10As provided, the watertight socket 3 is externally fixed with a sealing thread 302, which can be tightly connected with an external watertight plug to ensure the sealing of the watertight socket 3 and the safety of the miniature eight-pin connector 305. Several miniature eight-pin connectors 305 are fixed to the right end of the watertight socket 3. These miniature eight-pin connectors 305, in conjunction with the connecting wire 306, allow the circuit board 104 to communicate with external devices while simultaneously providing the necessary power to the circuit board 104. One of the miniature eight-pin connectors 305 is a power supply connector. A sealing strip 304, made of rubber, is slidably connected to the left end of the positioning nut 301. The sealing strip 304 ensures... The positioning nut 301 and the rear cover 2 are sealed together. The left end of the sealing strip 304 is tightly fitted to the rear cover 2. A screw 303 is fixed to the left end of the positioning nut 301, and a connecting wire 306 is fixed to the left end of the screw 303. The connecting wire 306 is fixedly connected to the circuit board 104. The screw 303 is externally engaged with an internal thread 203. The internal thread 203 and the screw 303 cooperate to secure the watertight socket 3 and the rear cover 2, thereby ensuring the safety of the entire device. A sealing cover 204 is fixed externally to the internal thread 203. The sealing cover 204 is made of alloy material. The sealing cover 204 facilitates locking the rear cover 2, further ensuring the airtightness of the entire device. 04 is externally fixedly connected to the rear cover 2. The sealing cover 204 also has a sealing groove 202 inside, which facilitates the installation of the connecting wire 306. The right end of the rear cover 2 is fastened to the housing 1 by a rear cover screw 201. The rear cover screw 201 can ensure the stability of the rear cover 2 and the housing 1. The sealing cover 204 has several rear cover connection holes 206 on its exterior. The housing 1 is also fastened to the rear cover connection holes 206 inside it by several slotted countersunk screws 101. The slotted countersunk screws 101 and the rear cover connection holes 206 cooperate to further ensure the stability of the rear cover 2 and the housing 1. The sealing cover 204 also has a rear cover sealing groove 205 on its exterior. The groove 205 is used to position the sealing ring 207. The sealing ring 207 is tightly fitted inside the rear cover sealing groove 205. The sealing ring 207 is made of rubber material. The sealing ring 207 can ensure the sealing performance between the sealing cover 204 and the housing 1, thereby further ensuring the sealing performance of the entire device, thus ensuring detection accuracy and detection effect. The sealing ring 207 is tightly fitted to the housing 1. The positioning shell 102 at the left end of the housing 1 is provided with a positioning groove 103. The positioning groove 103 is used to position the positioning ring 401. The positioning ring 401 is slidably connected inside the positioning groove 103. The positioning ring 401 is made of alloy material and is used to position the front cover 4.The positioning ring 401 is fixedly connected to the air intake plate 403 at its left end. The air intake plate 403 has several air intake holes 405 at its right end. These holes 405 ensure that carbon dioxide enters the housing 1 uniformly, thereby ensuring detection accuracy and improving detection efficiency. The air intake plate 403 has several perforated channels 404 at its left end. These channels are used to diffuse carbon dioxide gas that permeates the hydrophobic membrane 6, thereby ensuring uniform gas delivery and detection performance. The positioning ring 401 is tightly fitted with a front cover sealing ring 402 at its left end. 2. Made of rubber material, the front cover sealing ring 402 ensures the sealing of the positioning groove 103 and the front cover 4. The outer side of the front cover sealing ring 402 is tightly fitted to the positioning groove 103. A pressure cover sealing ring 503, also made of rubber material, is tightly fitted to the left end of the front cover 4. The pressure cover sealing ring 503 ensures the sealing of the positioning shell 102 and the pressure cover 5. The left end of the pressure cover sealing ring 503 is tightly fitted to the pressure cover 5. The pressure cover 5, the front cover 4, and the positioning shell 102 are fastened together by several pressure cover bolts 501.

[0030] When using this device, the operator inserts the circuit board 104 into the housing 1. The operator then fixes the circuit board 104 to the watertight socket 3 via the connecting wire 306. The operator then uses the internal thread 203 and the screw 303 to fix the rear cover 2 to the watertight socket 3. The sealing strip 304 ensures a tight seal between the watertight socket 3 and the rear cover 2. The operator further secures the sealing thread 302 to the external watertight connector. Finally, the operator places the sealing cover 20... 4. Insert the back cover 2 into the housing 1. Then, rotate the back cover 2 so that the back cover connection hole 206 on the sealing cover 204 aligns with the through hole on the housing 1. Next, use the countersunk screw 101 to fix the sealing cover 204 to the housing 1. Then, use the back cover screw 201 to tighten the back cover 2 to the housing 1. At this point, insert the positioning ring 401 into the positioning groove 103. Then, press the hydrophobic membrane 6 tightly against the left end of the air intake plate 403. Finally, install the pressure cap 5. At the left end of the front cover 4, the operator uses the cover bolt 501 to fix the cover 5, the front cover 4, and the positioning shell 102. The cover sealing ring 503 seals the cover 5 against the front cover 4, and the front cover sealing ring 402 seals the air intake plate 403 against the positioning groove 103. The operator then uses an underwater robot to transport the entire device to the deep sea. When the device reaches the desired detection location, the underwater robot releases the entire device. At this point, the tiny eight-pin connector 305 and the connecting... The function of line 306 is to provide power to the circuit board 104 and communicate with external devices. At this time, due to the function of the hydrophobic membrane 6, seawater is filtered to the outside while gas enters the right end of the hydrophobic membrane 6. Furthermore, due to the function of the perforated channel 404, the gas can be diffused and further enter the interior of the housing 1 through the air inlet 405. At this time, due to the function of the temperature and humidity sensor 105, the temperature and humidity of the gas can be detected. At the same time, the carbon dioxide concentration sensor 106 can detect the carbon dioxide concentration, and the air pressure sensor 107 can detect the air pressure.

[0031] The working process of this utility model is as follows: When using this device, the operator inserts the circuit board 104 into the housing 1. The operator then fixes the circuit board 104 to the watertight socket 3 via the connecting wire 306. The operator then uses the internal thread 203 and the screw 303 to fix the rear cover 2 to the watertight socket 3. The sealing strip 304 ensures a tight seal between the watertight socket 3 and the rear cover 2. The operator then secures the connection to the external watertight plug via the sealing thread 302. The operator inserts the sealing cap 204 into the housing 1. Then, the operator rotates the rear cover 2 so that the rear cover connecting hole 206 on the sealing cap 204 aligns with the through hole on the housing 1. The sealing cap 204 is then fixed to the housing 1 using the countersunk screw 101. The operator then tightens the rear cover 2 to the housing 1 using the rear cover screw 201. At this point, the operator inserts the positioning ring 401 into the positioning groove 103. The hydrophobic membrane 6 is then pressed tightly against the left end of the air intake plate 403. The operator then... The pressure cap 5 is installed on the left end of the front cover 4. At this time, the operator uses the pressure cap bolts 501 to fix the pressure cap 5, the front cover 4, and the positioning shell 102. The pressure cap sealing ring 503 seals the pressure cap 5 against the front cover 4, while the front cover sealing ring 402 seals the air intake plate 403 against the positioning groove 103. The operator then uses an underwater robot to transport the entire device to the deep sea. When the device reaches the desired detection location, the underwater robot releases the entire device. At this point, the tiny eight-pin connector 305 and the... The connecting line 306 provides power to the circuit board 104 and communicates with external devices. At this time, the hydrophobic membrane 6 filters seawater to the outside while allowing gas to enter the right end of the hydrophobic membrane 6. Furthermore, the perforated channel 404 diffuses the gas, which then enters the housing 1 through the air inlet 405. The temperature and humidity sensor 105 detects the temperature and humidity of the gas, the carbon dioxide concentration sensor 106 detects the carbon dioxide concentration, and the air pressure sensor 107 detects the air pressure.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for in-situ detection of carbon dioxide in deep sea, characterized in that: Includes a housing (1), a rear cover (2) slidably connected to the right end of the housing (1), a positioning nut (301) tightly fitted to the right end of the rear cover (2), a watertight socket (3) fixed to the right end of the positioning nut (301), a circuit board (104) slidably connected inside the housing (1), a temperature and humidity sensor (105) fixed to the left end of the circuit board (104), a carbon dioxide concentration sensor (106) fixed to the top of the temperature and humidity sensor (105), and the carbon dioxide concentration sensor (106)... 06) A pressure sensor (107) is fixed on the top. A positioning shell (102) is fixed on the left end of the housing (1). A front cover (4) is tightly attached to the left end of the positioning shell (102). An air intake plate (403) is fixed inside the front cover (4). A hydrophobic film (6) is tightly attached to the left end of the air intake plate (403). A pressure cap (5) is tightly attached to the left end of the front cover (4). A pressure ring (502) is fixed inside the pressure cap (5). The right end of the pressure ring (502) is tightly attached to the hydrophobic film (6).

2. The in-situ deep-sea carbon dioxide detection device according to claim 1, characterized in that: The watertight socket (3) is externally fixed with a sealing thread (302). Several tiny eight-pin connectors (305) are fixed on the right end of the watertight socket (3). One of the tiny eight-pin connectors (305) is a power supply connector. A sealing strip (304) is slidably connected to the left end of the positioning nut (301). The left end of the sealing strip (304) is tightly fitted to the back cover (2). A screw (303) is fixed to the left end of the positioning nut (301). A connecting wire (306) is fixed to the left end of the screw (303). The connecting wire (306) is fixedly connected to the circuit board (104).

3. The in-situ deep-sea carbon dioxide detection device according to claim 2, characterized in that: The screw (303) is externally connected to an internal thread (203), and a sealing cap (204) is fixed to the outside of the internal thread (203). The sealing cap (204) is externally fixedly connected to the rear cover (2). The sealing cap (204) is also provided with a sealing groove (202) inside. The right end of the rear cover (2) is fastened to the housing (1) by a rear cover screw (201). The sealing cap (204) is provided with several rear cover connection holes (206) outside. The housing (1) is also fastened to the rear cover connection holes (206) inside by several slotted countersunk screws (101). The sealing cap (204) is also provided with a rear cover sealing groove (205) outside. A sealing ring (207) is tightly fitted inside the rear cover sealing groove (205). The sealing ring (207) is tightly fitted to the housing (1) outside.

4. The deep-sea carbon dioxide in-situ detection device according to claim 3, characterized in that: The positioning shell (102) at the left end of the housing (1) is provided with a positioning groove (103), and a positioning ring (401) is slidably connected inside the positioning groove (103). The positioning ring (401) is fixedly connected to the air intake plate (403) at its left end. The air intake plate (403) is provided with a number of air intake holes (405) at its right end and a number of perforated channels (404) at its left end.

5. The in-situ deep-sea carbon dioxide detection device according to claim 4, characterized in that: The left end of the positioning ring (401) is tightly fitted with the front cover sealing ring (402), the outside of the front cover sealing ring (402) is tightly fitted with the positioning groove (103), the left end of the front cover (4) is tightly fitted with the pressure cover sealing ring (503), the left end of the pressure cover sealing ring (503) is tightly fitted with the pressure cover (5), and the pressure cover (5), the front cover (4) and the positioning shell (102) are fastened together by several pressure cover bolts (501).

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