A marine sediment sulfide detection device

Abstract

The utility model discloses a marine sediment sulfide detection device belongs to marine sediment detection technical field, including the bottom box, the bottom box top center place is built -in thermostatic water -bath, the thermostatic water -bath inside center place is provided with the hollow rod. In the utility model, after installing the absorption bottle and the bottle cap, the force of the first spring will drive the limiting block to move, and the use position of the clamping block and the bottle cap is limited and fixed, which ensures the stability during installation, prevents the subsequent detection effect of the device from being affected, and through the driving motor driving the rotating shaft, the gear, the ring gear, the ring block, the clamping block, the bottle cap and the built -in absorption conveying pipe, the gas -liquid interface barrier in the absorption bottle can be broken, the hydrogen sulfide gas is cut into micro bubbles, the contact area with the absorption liquid is increased, and the absorption reaction effect is accelerated.

Description

Technical Field

[0001] This utility model belongs to the field of marine sediment detection technology, and in particular relates to a marine sediment sulfide detection device. Background Technology

[0002] Sulfides in marine sediments are a class of inorganic or organic compounds with sulfur as the anion core. They are mainly produced by sulfate-reducing bacteria in anaerobic environments. Their toxicity can affect marine life, so it is necessary to regularly test the sulfides inside the sediments at the bottom of the ocean.

[0003] For example, Chinese patent document (CN212432990U) discloses a sulfide acidification blowing device, which relates to the technical field of detection equipment and aims to solve the technical problem of not being able to simultaneously measure multiple sets of experimental data. It includes a water bath, within which a support column is installed. A fixing plate is slidably connected to the support column along its axial direction. The fixing plate has several evenly spaced positioning holes for fitting onto the neck of a flask and fixing the flask. An external thread is provided on the outer circumference of the support column, and a clamping nut is threaded onto the support column to hold the fixing plate and thus fix the flask. The clamping nut is located on the side of the fixing plate away from the water bath. A mounting column is coaxially installed at the top of the support column, and several clamping components are provided on the mounting column for clamping the collection bottle. This invention has the effect of simultaneously performing multiple sets of experiments. However, during use, the gas and liquid inside the absorption bottle are often in a fixed state, resulting in weak contact and absorption effects between large gas bubbles and the liquid inside the absorption bottle, which affects the accuracy of the device. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the problem that in existing technologies, the gas and liquid inside the absorption bottle are often in a fixed state, resulting in weak contact and absorption between large gas bubbles and the liquid inside the absorption bottle, which affects the accuracy of the device. Therefore, this invention proposes a marine sediment sulfide detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A device for detecting sulfides in marine sediments includes a bottom box, a constant temperature water bath built into the center of the top of the bottom box, a hollow rod arranged in the center of the constant temperature water bath, a nitrogen delivery unit connected to the top of the hollow rod, and multiple mounting frames arranged below the nitrogen delivery unit. An auxiliary mixing component and a limiting and fixing component are respectively arranged inside the mounting frame located in the middle. The auxiliary mixing component includes an annular block rotatably connected to the top of the mounting frame. A drive unit is provided on the outer periphery of the annular block. Two slots and a mounting groove are arranged in a circular array on the top side inside the annular block. Multiple first springs are fixedly connected to the mounting groove on the side away from the slots. A limit block is fixedly connected to the other side of the first springs to place the external absorption bottle into the annular block.

[0006] As a further description of the above technical solution: The mounting bracket is fixedly connected to the outer periphery of the hollow rod. The cross-sectional shape of the mounting bracket is set to a cross shape. Multiple placement through holes are opened on the inner outer periphery of the mounting bracket. The placement through holes and the annular block are on the same axis. A first cavity is provided on the outer periphery of the placement through holes. A second cavity is provided on one side of the first cavity. Both the first cavity and the second cavity are located inside the mounting bracket.

[0007] As a further description of the above technical solution: The drive unit includes a ring gear fixedly connected to the outer periphery of the ring block. A gear is meshed with the outer side of the ring gear. A rotating shaft is fixedly connected inside the gear. The bottom end of the rotating shaft extends into the interior of the mounting frame, where a second cavity is opened and a drive motor is fixedly connected. The bottom of the drive motor is fixedly connected to the inner wall of the mounting frame. The rotating shaft is rotatably connected inside the mounting frame.

[0008] As a further description of the above technical solution: The card slot and the mounting slot are connected. The other side of the limiting block extends into the inside of the card slot. A toggle block is fixedly connected to the top of the limiting block. Both the limiting block and the toggle block are slidably connected inside the mounting slot.

[0009] As a further description of the above technical solution: The limiting and fixing assembly includes multiple second springs disposed inside the first cavity. The bottom of the second spring is fixedly connected to the inner wall of the mounting bracket, and an annular slider is fixedly connected to the top of the second spring. The annular slider is slidably connected inside the mounting bracket. Two connecting blocks are arranged in a circular array on the outer side of the annular slider, and a cone block is fixedly connected to one side of the two connecting blocks.

[0010] As a further description of the above technical solution: A roller is provided below the cone block, and a connecting rod is fixedly connected to the side of the roller away from the cone block. The other end of the connecting rod extends into the placement through hole and is fixedly connected to a fan-shaped block. A flexible protective layer is provided on the inner circumference of the fan-shaped block.

[0011] As a further description of the above technical solution: The connecting rod is slidably connected inside the mounting frame, and a third spring is sleeved on the outer periphery of the connecting rod. The two sides of the third spring are respectively fixedly connected to one side of the roller and the inner wall of the mounting frame.

[0012] As a further description of the above technical solution: Sliding blocks are provided on both sides above the annular slider. The sliding blocks are slidably connected inside the annular block and are located inside the slot. A sliding plate is fixedly connected to the top of the sliding block and is slidably connected inside the slot.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, through the auxiliary mixing component, after the absorption bottle and cap are installed, the force of the first spring will drive the limiting block to move, limiting and fixing the position of the locking block and the cap, ensuring its stability during installation and preventing it from affecting the subsequent detection effect of the device. By driving the motor to drive the rotating shaft, gear, ring gear, ring block, locking block, cap and its built-in absorption and delivery pipe to rotate, the gas-liquid interface barrier inside the absorption bottle can be broken, cutting the hydrogen sulfide gas into microbubbles, increasing its contact area with the absorption liquid, and accelerating the absorption reaction effect.

[0014] 2. In this utility model, through the setting of the limiting and fixing components, the bottom of the two side blocks of the bottle cap will drive the annular slider, connecting block and cone block to move downward through the sliding plate and sliding block, so that the roller drives the connecting rod and the fan-shaped block to move towards the bottle body of the absorption bottle, so as to assist in fixing the bottle body of the absorption bottle, thereby reducing the impact of bottle movement on the detection effect of the device and further improving the stability of the device during the detection process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the mounting bracket in this utility model; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the auxiliary mixing component and the limiting and fixing component in this utility model; Figure 4 In this utility model Figure 3 A magnified schematic diagram of the structure at point A.

[0016] Legend: 1. Base box; 2. Constant temperature water bath; 3. Hollow rod; 4. Nitrogen delivery unit; 5. Mounting bracket; 6. Auxiliary mixing assembly; 601. Annular block; 602. Slot; 603. Mounting slot; 604. First spring; 605. Limiting block; 606. Ring gear; 607. Gear; 608. Rotating shaft; 609. Drive motor; 7. Limiting and fixing assembly; 701. Second spring; 702. Annular slider; 703. Connecting block; 704. Conical block; 705. Roller; 706. Connecting rod; 707. Sector block; 708. Third spring; 709. Sliding block; 710. Sliding plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a marine sediment sulfide detection device, including a bottom box 1, a constant temperature water bath 2 built into the top center of the bottom box 1, a hollow rod 3 set in the center of the constant temperature water bath 2, a nitrogen delivery unit 4 connected to the top of the hollow rod 3, and multiple mounting frames 5 set below the nitrogen delivery unit 4. An auxiliary mixing component 6 and a limiting and fixing component 7 are respectively set inside the mounting frame 5 located in the middle. The auxiliary mixing component 6 includes an annular block 601 rotatably connected to the top of the mounting frame 5. A drive unit is provided on the outer periphery of the annular block 601. Two slots 602 and a mounting groove 603 are arranged in a circumferential array on the top side of the annular block 601. Multiple first springs 604 are fixedly connected to the side of the mounting groove 603 away from the slots 602. A limit block 605 is fixedly connected to the other side of the first springs 604. The mounting frame 5 is fixedly connected to the outer periphery of the hollow rod 3. The cross-sectional shape of the mounting frame 5 is cross-shaped. Multiple placement through holes are opened on the inner outer periphery of the mounting frame 5. The placement through holes and the annular block 601 are on the same axis. A first cavity is provided on the outer periphery of the placement through holes. A second cavity is provided on one side of the first cavity. The first cavity and the second... Both cavities are located inside the mounting bracket 5. The drive unit includes a ring gear 606 fixedly connected to the outer periphery of the ring block 601. A gear 607 is meshed on the outer side of the ring gear 606. A rotating shaft 608 is fixedly connected inside the gear 607. The bottom end of the rotating shaft 608 extends into the interior of the mounting bracket 5, where a second cavity is formed and a drive motor 609 is fixedly connected. The bottom of the drive motor 609 is fixedly connected to the inner wall of the mounting bracket 5. The rotating shaft 608 is rotatably connected inside the mounting bracket 5. The slot 602 and the mounting groove 603 are connected. The other side of the limiting block 605 extends into the slot 602. A lever is fixedly connected to the top of the limiting block 605. Both the limiting block 605 and the lever are slidably connected inside the mounting groove 603.

[0019] Detailed Implementation: First, place the device in a suitable position. Then, connect the bottom of the hollow rod 3 to the external nitrogen supply device. When it is necessary to detect sulfides inside marine sediments, first place the sampled marine sediments into one or more sealed bottles. Then, place one or more sealed bottles into the placement through-holes opened inside the bottom mounting frame 5. At this time, the sealed bottles will be inside the constant temperature water bath 2. Then, place one or more external absorption bottles into the placement through-holes opened inside the middle mounting frame 5. At this time, the caps of the external absorption bottles will enter the annular block 601 through the locking blocks on both sides and match the locking grooves 602 inside the annular block 601. At this time, the absorption delivery tube at the center of the cap and the annular block 601 are connected. 01 are on the same axis. Then, one or more external recovery bottles are placed sequentially into the placement through-hole of the mounting bracket 5 at the top. After placement, the nitrogen delivery unit 4 is connected to the nitrogen inlet inside the sealed bottle through pipes and fittings. Then, the absorption outlet on the sealed bottle is connected to the top of the absorption delivery pipe through absorption pipes and adapters. Finally, the gas outlet on the absorption bottle is connected to the external recovery bottle through the waste gas pipe. After connection, a suitable acidic solution is added to the sealed bottle to react with the marine sediment. At the same time, the nitrogen delivery device will pressurize the reacted hydrogen sulfide gas into the absorption pipe on one side, and then transport it to the absorption bottle through the absorption pipe so that it reacts with the absorbent liquid inside the absorption bottle. After contact and absorption, a small portion of unabsorbed hydrogen sulfide gas is discharged through a recovery bottle, effectively ensuring the device's protective function during testing. After the absorption bottle and cap are installed, the locking blocks on both sides of the cap are positioned within the slots 602. At this time, the force of the first spring 604 moves the limiting block 605, limiting and fixing the positions of the locking blocks and cap, ensuring stability during installation and preventing any impact on subsequent testing results. As needed, the drive motor 609 is activated, driving the rotating shaft 608 and gear 607 to rotate. Utilizing the linkage between gear 607 and the ring gear 606, power is transmitted to the ring gear 606, causing the ring gear to rotate. Gear 606 drives the annular block 601, the locking block, the bottle cap, and its built-in absorption and delivery pipe to rotate, breaking the gas-liquid interface barrier inside the absorption bottle, cutting hydrogen sulfide gas into microbubbles, increasing its contact area with the absorption liquid, and accelerating the absorption reaction. The bottom of the annular block 601 can be rotatably connected to the top of the mounting frame 5 using an annular slider and an annular slide rail, depending on actual needs. This technology is a known existing installation technique easily recognizable to those skilled in the art, and therefore not elaborated upon in this application. The actual number of locking slots 602 and mounting slots 603 can be arranged as needed. The bottle cap, the locking blocks on both sides, and the absorption and delivery pipe located in the center of the external absorption bottle require mass customization for this technology. The bottle cap rotates and seals on the outer periphery of the top of the absorption bottle.This absorption pipe can be equipped with an external fixing bracket, which can be fixed to a suitable position on the device as needed.

[0020] The limiting and fixing assembly 7 includes multiple second springs 701 disposed inside the first cavity. The bottom of each second spring 701 is fixedly connected to the inner wall of the mounting bracket 5. An annular slider 702 is fixedly connected to the top of each second spring 701. The annular slider 702 is slidably connected inside the mounting bracket 5. Two connecting blocks 703 are arranged in a circular array on the outer circumference of the annular slider 702. A cone block 704 is fixedly connected to one side of the two connecting blocks 703 opposite to each other. A roller 705 is disposed below the cone block 704. A connecting rod 706 is fixedly connected to the side of the roller 705 away from the cone block 704. The other end of the connecting rod 706 extends into the placement through hole and... A sector-shaped block 707 is fixedly connected, and a flexible protective layer is provided on the inner circumference of the sector-shaped block 707. A connecting rod 706 is slidably connected inside the mounting frame 5. A third spring 708 is sleeved on the outer circumference of the connecting rod 706. The two sides of the third spring 708 are fixedly connected to one side of the roller 705 and the inner wall of the mounting frame 5, respectively. Sliding blocks 709 are provided on both sides above the annular slider 702. The sliding blocks 709 are slidably connected inside the annular block 601 and are located inside the slot 602. A sliding plate 710 is fixedly connected to the top of the sliding block 709 and is slidably connected inside the slot 602.

[0021] Detailed Implementation: Simultaneously, the bottom of the two side blocks of the bottle cap will drive the annular slider 702 and connecting block 703 to move downwards via the sliding plate 710 and sliding block 709. During the downward movement of the connecting block 703, the roller 705 will be squeezed by the cone block 704, causing the roller 705 to drive the connecting rod 706 and the fan-shaped block 707 to move towards the body of the absorption bottle, so as to assist in fixing the body of the absorption bottle, reduce the impact of bottle movement on the detection effect of the device, and further improve the stability of the device during the detection process. The distance between the multiple mounting brackets 5 can be set according to actual needs, and the number of connecting blocks 703 can be arranged according to actual needs. The bottom of the sliding block 709 is provided with multiple balls to reduce friction. This technology is a known and disclosed technology that is easily conceived by those in the art, so it is not described in detail in this application.

[0022] Working principle: In use, first place the device in a suitable position, then connect the bottom of the hollow rod 3 to the external nitrogen supply device. When it is necessary to detect sulfides inside marine sediments, first place the sampled marine sediments into one or more sealed bottles, and then place one or more sealed bottles into the placement through holes opened inside the bottom mounting frame 5. At this time, the sealed bottles will be inside the constant temperature water bath 2. Then, place one or more external absorption bottles into the placement through holes opened in the middle mounting frame 5. At this time, the caps of the external absorption bottles will enter the annular block 601 through the locking blocks on both sides, and connect with the annular block 601. The internal slot 602 of the 01 is compatible. After the absorption bottle and cap are installed, the locking blocks on both sides of the cap will be inside the slot 602. At this time, the force of the first spring 604 will drive the limiting block 605 to move, limiting and fixing the position of the locking blocks and the cap. At this time, the absorption delivery pipe at the center of the cap and the annular block 601 are on the same axis. Then, one or more external recovery bottles are placed into the placement through hole of the top mounting bracket 5. After placement, the nitrogen delivery unit 4 is connected to the nitrogen inlet inside the sealed bottle through the pipe and pipe joint. Then, the absorption outlet on the sealed bottle is connected to the absorption pipe. The adapter is connected to the top of the absorption and delivery pipe. Finally, the outlet on the absorption bottle is connected to the external recovery bottle through the waste gas pipe. After connection, a suitable acidic solution is added to the sealed bottle to react with the marine sediment. At the same time, nitrogen gas is supplied to the device to pressurize the reacted hydrogen sulfide gas into the absorption pipe on one side. It is then transported to the absorption bottle through the absorption pipe, where it comes into contact with and is absorbed by the absorbent liquid inside the absorption bottle. The small portion of hydrogen sulfide gas that is not completely absorbed is then discharged after being processed through the recovery bottle. The drive motor 609 is started as needed, which drives the rotating shaft 608 and gear 6. 07 rotates, utilizing the linkage effect between gear 607 and ring gear 606 to transmit power to ring gear 606, causing ring gear 606 to drive ring block 601, locking block, bottle cap and its built-in absorption and delivery tube to rotate. At the same time, the bottom of the locking blocks on both sides of the bottle cap will drive the ring slider 702 and connecting block 703 to move downward through sliding plate 710 and sliding block 709. During the downward movement of connecting block 703, it will squeeze roller 705 through cone block 704, causing roller 705 to drive connecting rod 706 and sector block 707 to move towards the bottle body of absorption bottle, so as to assist in fixing the bottle body of absorption bottle.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting sulfides in marine sediments, comprising a bottom tank (1), characterized in that: The bottom box (1) has a constant temperature water bath (2) built into the center of the top. The constant temperature water bath (2) has a hollow rod (3) in the center of the interior. The top of the hollow rod (3) is connected to a nitrogen delivery unit (4). Multiple mounting brackets (5) are provided below the nitrogen delivery unit (4). The mounting bracket (5) in the middle is provided with an auxiliary mixing component (6) and a limiting and fixing component (7). The auxiliary mixing component (6) includes an annular block (601) rotatably connected to the top of the mounting bracket (5). A driving unit is provided on the outer periphery of the annular block (601). The annular block (601) has two slots (602) and a mounting groove (603) arranged in a circular array on the top side inside. A plurality of first springs (604) are fixedly connected to the side of the mounting groove (603) away from the slots (602). A limit block (605) is fixedly connected to the other side of the first springs (604).

2. The marine sediment sulfide detection device according to claim 1, characterized in that: The mounting bracket (5) is fixedly connected to the outer periphery of the hollow rod (3). The cross-sectional shape of the mounting bracket (5) is set to cross shape. Multiple placement through holes are opened on the inner outer periphery of the mounting bracket (5). The placement through holes and the annular block (601) are on the same axis. A first cavity is provided on the outer periphery of the placement through holes. A second cavity is provided on one side of the first cavity. Both the first cavity and the second cavity are located inside the mounting bracket (5).

3. The marine sediment sulfide detection device according to claim 2, characterized in that: The drive unit includes a ring gear (606) fixedly connected to the outer periphery of the ring block (601). A gear (607) is meshed with the outer side of the ring gear (606). A rotating shaft (608) is fixedly connected inside the gear (607). The bottom end of the rotating shaft (608) extends into the interior of the mounting frame (5) and has a second cavity with a drive motor (609) fixedly connected inside. The bottom of the drive motor (609) is fixedly connected to the inner wall of the mounting frame (5). The rotating shaft (608) is rotatably connected inside the mounting frame (5).

4. The marine sediment sulfide detection device according to claim 3, characterized in that: The slot (602) and the mounting slot (603) are connected. The other side of the limiting block (605) extends into the slot (602). A toggle block is fixedly connected to the top of the limiting block (605). The limiting block (605) and the toggle block are slidably connected inside the mounting slot (603).

5. The marine sediment sulfide detection device according to claim 4, characterized in that: The limiting and fixing assembly (7) includes multiple second springs (701) disposed inside the first cavity. The bottom of the second spring (701) is fixedly connected to the inner wall of the mounting bracket (5). The top of the second spring (701) is fixedly connected to an annular slider (702). The annular slider (702) is slidably connected inside the mounting bracket (5). The annular slider (702) has two connecting blocks (703) arranged in a circular array on its outer side. The two connecting blocks (703) are fixedly connected to a cone block (704) on opposite sides.

6. The marine sediment sulfide detection device according to claim 5, characterized in that: A roller (705) is provided below the cone block (704). A connecting rod (706) is fixedly connected to the side of the roller (705) away from the cone block (704). The other end of the connecting rod (706) extends into the placement through hole and is fixedly connected to a fan-shaped block (707). A flexible protective layer is provided on the inner circumference of the fan-shaped block (707).

7. The marine sediment sulfide detection device according to claim 6, characterized in that: The connecting rod (706) is slidably connected inside the mounting frame (5). A third spring (708) is sleeved on the outer periphery of the connecting rod (706). The two sides of the third spring (708) are fixedly connected to one side of the roller (705) and the inner wall of the mounting frame (5), respectively.

8. The marine sediment sulfide detection device according to claim 7, characterized in that: Sliding blocks (709) are provided on both sides above the annular slider (702). The sliding blocks (709) are slidably connected inside the annular block (601) and are located inside the slot (602). A sliding plate (710) is fixedly connected to the top of the sliding block (709) and is slidably connected inside the slot (602).

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