Water quality petroleum sampling device

Abstract

The utility model relates to a water quality petroleum sampling device, the bottom end of a sampling pipe of the device is provided with a hinge seat, a valve and a buoyancy warped plate, the weight of the buoyancy warped plate is greater than that of the valve, a top end lifting chain is lifted, and before entering water, under the action of gravity, a water inlet at the bottom end of the sampling pipe is closed by the valve; when the device enters water, an oil film on the water surface can be prevented from entering; after entering water, the buoyancy ring enables the sampling pipe to be vertically stabilized in the water, the floating block on the buoyancy warping plate generates buoyancy, the buoyancy warping plate ascends, the valve is pulled to slowly open the water inlet in the bottom end of the sampling pipe, underwater columnar water samples are collected, collection of water quality petroleum is accurate and stable, and semi-automatic operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to a water quality petroleum sampling device. Background Art

[0002] The content of petroleum in water is an important monitoring item for water environment monitoring and an important indicator for evaluating water pollution. Petroleum samples have clear sampling requirements, because petroleum analysis in water is to determine the emulsified state and soluble oil substances in water, so samples need to be collected separately. The specification requires the use of an upright water sampler to install a glass container in the frame of the water sampler, and place it underwater to collect 30cm columnar water samples. The sampling process avoids collecting oil films on the surface of the water body.

[0003] At present, the existing water quality petroleum sampling devices have the following shortcomings: water enters the upper end of the sampler, and the oil film on the water surface is not completely cleaned during the sampling process, and a small amount of oil film enters the sampler, resulting in inaccurate monitoring data; secondly, the water sampler is manually lowered, and the water sampler cannot be accurately and stably placed 30 cm underwater to collect columnar water samples. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model aims to provide a water quality petroleum sampling device.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a water quality petroleum sampling device, including a sampling tube, the top of the sampling tube with scale lines is closed and is provided with a waterproof and breathable valve, the bottom end of the sampling tube is provided with a hinged seat, and a valve that can open and close the water inlet at the bottom end of the sampling tube is hinged on the hinged seat, the valve is connected to a buoyancy seesaw extending to the other end of the hinged seat, the buoyancy seesaw is provided with a floating block, the weight of the buoyancy seesaw is greater than the weight of the valve, the top of the sampling tube is connected to a lifting chain, and the valve is connected to a lifting rope.

[0006] Furthermore, the sampling tube is sleeved with a buoyancy ring for controlling the sampling depth. The buoyancy of the buoyancy ring allows the water inlet at the bottom end of the sampling tube to be stabilized at a preset underwater depth for sampling.

[0007] Furthermore, the sleeve position of the buoyancy ring on the sampling tube can be adjusted up and down, and the depth of the water inlet at the bottom end of the sampling tube under water can be adjusted.

[0008] Furthermore, the hinged seat is connected to a hoop for installation and fixation at the bottom end of the sampling tube, which is used to stably connect and fix the hinged seat and the sampling tube.

[0009] Furthermore, the sampling tube is made of glass and meets regulatory requirements.

[0010] Furthermore, the valve and the buoyancy seesaw are made of stainless steel, which is corrosion-resistant and has a long service life.

[0011] The beneficial effects of the utility model are as follows: a hinged seat, a valve and a buoyancy seesaw are arranged at the bottom end of the sampling tube of the device, and the weight of the buoyancy seesaw is greater than the weight of the valve. The top hanging chain is lifted, and before entering the water, under the action of gravity, the valve closes the bottom water inlet of the sampling tube, and the oil film on the surface of the water body can be prevented from entering when the device enters the water. After entering the water, the buoyancy ring makes the sampling tube vertically stable in the water, the floating block on the buoyancy seesaw generates buoyancy, the buoyancy seesaw rises, and the valve is pulled to slowly open the bottom water inlet of the sampling tube to collect underwater columnar water samples. The collection of water quality and petroleum is accurate and stable, and the sampling efficiency is high.

[0012] The design of the adjustable buoyancy ring for sampling can stabilize the water inlet at the bottom of the sampling tube at a preset underwater depth for sampling, with a small sampling error.

[0013] The device has a scientific structure, sophisticated design, and simple operation, and can achieve accurate and stable sampling of petroleum in water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the implementation of the utility model.

[0017] Parts in the figure: 1-sampling tube; 2-waterproof breathable valve; 3-hinge seat; 4-valve; 5-buoyancy seesaw; 6-floating block; 7-lifting chain; 8-lifting rope; 9-buoyancy ring; 31-hoop. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model, rather than indicating or implying 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 a limitation to the utility model.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figures 1-2 As shown, a water quality petroleum sampling device comprises a sampling tube 1, the top end of the sampling tube 1 provided with scale lines is closed and provided with a waterproof breathable valve 2, the bottom end of the sampling tube 1 is provided with a hinged seat 3, the hinged seat 3 is hinged with a valve 4 which can open and close the water inlet at the bottom end of the sampling tube 1, the valve 4 is connected to a buoyancy seesaw 5 extending to the other end of the hinged seat 3, the buoyancy seesaw 5 is provided with a floating block 6, the weight of the buoyancy seesaw 5 is greater than the weight of the valve 4, the top end of the sampling tube 1 is connected with a lifting chain 7, and the valve 4 is connected with a lifting rope 8.

[0021] The sampling tube 1 is sleeved with a buoyancy ring 9 for controlling the sampling depth. The buoyancy of the buoyancy ring 9 allows the water inlet at the bottom of the sampling tube 1 to be stabilized at a preset underwater depth for sampling.

[0022] The sleeve position of the buoyancy ring 9 on the sampling tube 1 can be adjusted up and down, and the depth of the water inlet at the bottom end of the sampling tube 1 under water can be adjusted.

[0023] The hinged seat 3 is connected with a hoop 31 for installation and fixation at the bottom end of the sampling tube 1 , so as to stably connect and fix the hinged seat 3 and the sampling tube 1 .

[0024] The sampling tube 1 is made of glass and meets the regulatory requirements.

[0025] The valve 4 and the buoyancy seesaw 5 are made of stainless steel, which is corrosion-resistant and has a long service life.

[0026] Implementation process: Before sampling, a buoyancy adjustment test is performed to adjust the buoyancy ring 9 to a suitable sleeve position on the sampling tube 1 so that the bottom water inlet of the sampling tube 1 can be stabilized at a preset underwater depth, which is generally 30 cm, and then field sampling can be carried out.

[0027] In the preset sampling water area, lift the top chain 7 of the sampling tube 1. Before entering the water, because the weight of the buoyancy seesaw 5 is greater than the weight of the valve 4, the valve 4 closes the water inlet at the bottom of the sampling tube 1 under the action of gravity. Figure 1 As shown, when the device enters the water, it passes through the oil film on the surface of the water body, which can prevent the oil film on the surface of the water body from entering the sampling tube 1; after entering the water, the buoyancy ring 9 makes the sampling tube 1 vertically stable in the water, and the bottom water inlet of the sampling tube 1 is stabilized at a preset depth underwater, and the floating block 6 on the buoyancy seesaw 5 generates buoyancy, and the buoyancy seesaw 5 rises, pulling the hinged valve 4 to slowly open the bottom water inlet of the sampling tube 1, and water enters the sampling tube 1, as shown in FIG. Figure 2 As shown, the waterproof breathable valve 2 at the top exhausts the air, and the sampling tube 1 collects underwater columnar water samples. After the sampling is completed, the lifting rope 8 connected to the valve 4 is lifted up, and the sampling tube 1 is inverted and the water is discharged. All the substances in the sampling tube 1 are retained for determination.

Claims

1. A water quality petroleum sampling device, comprising a sampling tube (1), characterized in that: The top of a sampling tube (1) provided with scale lines is closed and provided with a waterproof breathable valve (2); the bottom of the sampling tube (1) is provided with a hinged seat (3); a valve (4) is hingedly connected to the hinged seat (3) and can open and close the water inlet at the bottom of the sampling tube (1); the valve (4) is connected to a buoyancy seesaw (5) extending to the other end of the hinged seat (3); a floating block (6) is provided on the buoyancy seesaw (5); the weight of the buoyancy seesaw (5) is greater than the weight of the valve (4); the top of the sampling tube (1) is connected to a lifting chain (7); and the valve (4) is connected to a lifting rope (8).

2. A water quality petroleum sampling device according to claim 1, characterized in that: The sampling tube (1) is sleeved with a buoyancy ring (9) for controlling the sampling depth.

3. A water quality petroleum sampling device according to claim 2, characterized in that: The sleeve position of the buoyancy ring (9) on the sampling tube (1) can be adjusted up and down.

4. A water quality petroleum sampling device according to claim 3, characterized in that: The hinged seat (3) is connected to a hoop (31) for mounting and fixing the bottom end of the sampling tube (1).

5. The water quality petroleum sampling device according to claim 1 is characterized in that: The sampling tube (1) is made of glass.

6. A water quality petroleum sampling device according to claim 1, characterized in that: The valve (4) and the buoyancy seesaw (5) are made of stainless steel.

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