CN217237318U

CN217237318U - Sewage sampling device of nuclear power plant

Info

Publication number: CN217237318U
Application number: CN202220393761.8U
Authority: CN
Inventors: 刘强; 张晓光; 代荣喜
Original assignee: CNNC Nuclear Power Operation Management Co Ltd; Qinshan Nuclear Power Co Ltd
Current assignee: CNNC Nuclear Power Operation Management Co Ltd; Qinshan Nuclear Power Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-19
Anticipated expiration: 2032-02-25

Abstract

The utility model belongs to the technical field of nuclear power sewage treatment, concretely relates to sampling device for sewage analysis. Comprises a sampling rod and a sampling bottle, wherein the sampling rod is sleeved in the sampling bottle. The sampling rod comprises a pull ring, a pull rod, a limiting piece and a bottom cover, wherein the pull ring is fixed above the pull rod, the limiting piece is arranged on the pull rod below the pull ring, and the lower part of the pull rod is connected with the bottom cover. A rubber pad is sleeved between the lower part of the pull rod and the bottom cover. The sampling bottle comprises a sampling bottle body and a limiting bracket. The bottle mouth end of the sampling bottle body is provided with a limiting bracket. The beneficial effects of the utility model reside in that: simple structure, the operation of being convenient for causes the convection current of inside water of sampler and outside sewage to cause the water sample deviation when can avoiding retrieving, influences the testing effect. Is safe and reliable.

Description

Sewage sampling device of nuclear power plant

Technical Field

The utility model belongs to the technical field of nuclear power sewage treatment, concretely relates to sampling device for sewage analysis.

Background

In recent years, with rapid economic development and improvement in living standards, pollutants discharged into the ocean in various ways have been high, and the environmental quality of offshore areas has not been optimistic. Nuclear power plants are generally built alongside the sea and are provided with a sewage system, including a production wastewater, a rainwater system and a domestic sewage system. The main functions of the system are that rainwater and production wastewater on roofs and sites are collected and discharged into seawater, and that domestic sewage discharged from various subsections of the nuclear power station is discharged into the sea after detection and treatment. The improvement of the environment quality condition of offshore areas and the maintenance of the marine ecological environment safety are the responsibility of each person and each enterprise, so that the sewage must be sampled and detected before the sewage is discharged into the sea by a nuclear power plant, and the sewage can be discharged after reaching the standard. Current quality of water sampling device, the function singleness, the structure is complicated, and the sample effect is relatively poor, causes the inside water of sampler and outside sewage to take place the convection current easily in sampler recovery process to influence the sample effect, lead to water quality monitoring to appear the deviation, consequently need provide a sampling device for nuclear power station sewage detection, be used for solving present sample unchangeable, the problem that the sample effect has the deviation.

SUMMERY OF THE UTILITY MODEL

To present marine environment quality problem, the utility model aims at providing a nuclear power plant sewage sampling device is used for detecting sewage quality of water, ensures to discharge into the sea after up to standard, and the device is simple reliable, causes the convection current of inside water of sampler and outside sewage when can avoiding retrieving, reduces sampling error, guarantees water quality testing's accuracy.

The technical scheme of the utility model as follows: the utility model provides a nuclear power plant sewage sampling device, includes thief rod and sampling bottle, and the thief rod suit is in the sampling bottle.

Preferably, the sampling rod comprises a pull ring, a pull rod, a limiting piece and a bottom cover, the pull ring is fixed above the pull rod, the limiting piece is arranged on the pull rod below the pull ring, and the lower part of the pull rod is connected with the bottom cover.

Preferably, a rubber pad is sleeved between the lower part of the pull rod and the bottom cover.

Preferably, the sampling bottle comprises a sampling bottle body and a limiting bracket.

Preferably, the bottle mouth end of the sampling bottle body is provided with a limiting bracket.

Preferably, the limiting support is installed through an installation groove formed in the bottle opening end of the sampling bottle body.

Preferably, the limiting bracket 7 is a cross-shaped limiting bracket.

Preferably, the middle of the sampling bottle body is provided with an annular groove.

The beneficial effects of the utility model reside in that: simple structure, the operation of being convenient for causes the convection current of inside water of sampler and outside sewage to cause the water sample deviation when can avoiding retrieving, influences the testing effect. Is safe and reliable.

Drawings

FIG. 1 is an overall perspective view of a nuclear power plant sewage sampling device provided by the present invention;

FIG. 2 is a perspective view of a sampler shaft;

FIG. 3 is an isometric view of a sampling vial.

In the figure: 1 sampling bottle body, 2 pull rings, 3 pull rods, 4 limiting pieces, 5 rubber pads, 6 bottom covers and 7 bottleneck pull rod limiting supports.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in figure 1, the nuclear power plant sewage sampling device comprises a sampling rod and a sampling bottle, wherein the sampling rod is sleeved in the sampling bottle.

The sampling rod comprises a pull ring 2, a limiting sheet 4, a rubber pad 5 and a bottom cover 6, wherein the pull ring 2 is fixed above the pull rod 3, and the limiting sheet 4 is arranged on the pull rod 3 below the pull ring 2 and used for limiting the pull rod 3 to move downwards; the lower part of the pull rod 3 is connected with the bottom cover 6, and a rubber pad 5 is sleeved between the lower part of the pull rod 3 and the bottom cover 6.

The sampling bottle comprises a sampling bottle body 1 and a bottle mouth pull rod limiting support 7. The bottle mouth end of the bottle body is provided with an installation groove (not shown in the figure, please supplement the corresponding figure), a limit bracket 7 is installed, the limit bracket 7 is a cross-shaped limit bracket, and the middle part is provided with an annular groove (not shown in the figure, please supplement the corresponding figure); a sampling rod is inserted in the annular groove.

As shown in fig. 1, the top end of the pull rod 3 is provided with a through hole matched with the pull ring 2, the pull ring 2 is used for pulling by hand or tying a rope, one end of the pull rod 3 is inserted into a sampling bottle, and the bottom end of the sampling bottle body 1 is provided with a through hole matched with the pull rod 3, so that the pull rod can be normally inserted and can move up and down; sampling bottle body 1 bottleneck end integrated into one piece is not sealed, guarantees that rivers can normally flow in, as shown in fig. 3, and the top of sampling bottle body 1 sets up bottleneck pull rod spacing support 7, for the crisscross type, plays fixed pull rod 3's effect, and sets up the porose that corresponds with sampling bottle body 1 bottom in the middle of the cross, makes pull rod 3 pass the sampling bottle smoothly, keeps fixed, does not take place to control and rocks.

The bottom end of the pull rod 3 is connected with the bottom cover 6 through threads, and the bottom cover 6 is a solid metal block, so that the integral gravity center can be reduced, and the sampling rod can vertically sink. The rubber pad 5 that matches with the bottleneck of sample bottle 1 is established to adjacent bottom 6 cover for the sealed bottleneck when the pull rod rises, guaranteeing rubber pad 5 and bottom 6 contactless sample bottle 1 bottleneck, keeping a certain distance with the sample bottle, under the prerequisite of the water inflow of being convenient for, hug closely a fixed ring spacing 4 in the position at 1 top of sample bottle for restriction pull rod 3 down position prevents that bottom 6 from continuing to sink and driving pull rod 3 and drop because of gravity.

The working operation method of the device is as follows:

(1) when water is taken, the rope is tied at the pull ring 2, the sampling device is thrown into sewage according to the sampling depth, the pull ring 2 is not pulled, the sampling device naturally sinks by the gravity of the bottom cover 6 until the limiting piece 4 is tightly attached to the sampling bottle body 1, the bottom cover 6 is guaranteed to be in a lower position and not in contact with the sampling bottle, water flow can naturally flow into the sampling bottle body 1 from the hole of the bottleneck pull rod limiting support 7, and a water body sample is obtained.

(2) After the sampling bottle body 1 is filled with liquid, the pull ring 2 is pulled to drive the pull rod 3 to ascend, so that the rubber pad 5 and the bottom cover 6 are driven to ascend to be in contact with the sampling bottle opening, the rubber pad 5 plays a role in sealing, and water is prevented from flowing out.

(3) The sampling device is pulled out and placed on the detection device, then the pull rod 3 is pushed, the bottom cover 6 and the rubber pad 5 are made to descend and separated from the bottle mouth of the sampling bottle, and at the moment, water flows out from the bottle mouth pull rod limiting support 7 under the action of gravity. And then repeating the sampling operation.

The embodiments of the present invention have been described in detail, but the above description is only the best embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the scope of the present invention should be covered by the present invention.

Claims

1. The utility model provides a sewage sampling device of nuclear power plant which characterized in that: comprises a sampling rod and a sampling bottle, wherein the sampling rod is sleeved in the sampling bottle;

the sampling rod comprises a pull ring, a pull rod, a limiting piece and a bottom cover, wherein the pull ring is fixed above the pull rod, the limiting piece is arranged on the pull rod below the pull ring, and the lower part of the pull rod is connected with the bottom cover;

a rubber pad is sleeved between the lower part of the pull rod and the bottom cover;

the sampling bottle comprises a sampling bottle body and a limiting bracket;

the bottle mouth end of the sampling bottle body is provided with a limiting bracket.

2. The nuclear power plant sewage sampling device of claim 1, wherein: the limiting support is installed through an installation groove formed in the bottle opening end of the sampling bottle body.

3. The nuclear power plant sewage sampling device of claim 1, wherein: the limiting bracket is a cross-shaped limiting bracket.

4. The nuclear power plant sewage sampling device of claim 1, wherein: the middle of the sampling bottle body is provided with an annular groove.