CN214096703U

CN214096703U - Low temperature sample frame water sample drainage recovery unit

Info

Publication number: CN214096703U
Application number: CN202022775064.2U
Authority: CN
Inventors: 张增辉; 詹新民; 徐广涛; 杜武荣; 郗来良; 黄志涛
Original assignee: Huaneng Luoyuan Power Generation Co Ltd
Current assignee: Huaneng Luoyuan Power Generation Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-31
Anticipated expiration: 2030-11-26

Abstract

The utility model relates to a low temperature sample frame water sample drainage recovery unit, including low temperature sample frame, low temperature sample frame outlet is equipped with two branches, and one of them branch road and non-pressure drain are equipped with the female pipe-line connection of draining and should be equipped with on the road and drain that another road is followed rivers moving direction and has set gradually the isolation valve that the water tank intake, water tank, solenoid valve, manual isolation valve and condenser hot-well. This device reasonable in design, simple structure with low temperature sample frame water sample drainage recovery and recycle, avoids wasting of resources and economic loss, reaches energy saving and consumption reduction's purpose.

Description

Low temperature sample frame water sample drainage recovery unit

Technical Field

The utility model relates to a low temperature sample frame water sample drainage recovery unit.

Background

At present, a unit chemical low-temperature sampling frame of power plant engineering is provided with 14 paths of phi 10 sampling pipes such as a condensate pump outlet, a deaerator inlet and outlet, an economizer inlet, a main steam pipe, reheated steam, a high-pressure heater, a low-pressure heater, closed cooling water, a separator outlet and the like.

As shown in figure 1, the prior chemical sampling water design directly flows into a non-pressure water discharge main pipe of a steam engine room and is not recycled basically; in addition, during the operation of the unit, in order to ensure the reliability of the on-line sampling quality, the sampling pipeline needs to be circulated for a long time, and the sampling door must be kept in an open state, thereby causing too much water source waste. The water sampled and flowed out of each unit is 1.25m after mapping³About/h, the two units lose 60 cubic meters per day, the cost is calculated according to 10 yuan/ton of demineralized water, 600 yuan is lost per day, 21.9 ten thousand yuan is wasted in one year, the water flowing out of the low-temperature sampling frame is qualified, the water cannot be utilized, economic loss is caused, and the purposes of energy conservation and consumption reduction are not achieved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is to provide a low temperature sample frame water drainage recovery unit, simple structure and energy saving and consumption reduction can retrieve the low temperature sample frame water drainage and recycle.

The utility model discloses a concrete embodiment is constituted like this, it includes the low temperature sample frame, the low temperature sample frame outlet is equipped with two branches, and one of them branch road is equipped with the female pipe isolation valve that drains on female union coupling and this branch road with the non-pressure, and another branch road has set gradually water tank isolating valve, water tank, solenoid valve, manual isolating valve and condenser hot-well that intakes along rivers moving direction.

Furthermore, be equipped with multistage water seal pipe between manual isolating valve and the condenser hot-well, multistage water seal pipe top is provided with the sealed water return pipe of feed pump, be connected through the pipeline between sealed water return pipe of feed pump and the multistage water seal pipe.

Further, a remote liquid level meter is installed on the side of the water tank.

Furthermore, a branch connected with the non-pressure water drain main pipe is provided with a main pipe blow-down valve.

Further, a trench is arranged below the side of the water tank, a drain pipe is arranged between the water tank and the trench, a drain pipe connected with the drain pipe is arranged below the water tank, and a drain valve of the water tank is arranged on the drain pipe.

Compared with the prior art, the utility model discloses following beneficial effect has: this device reasonable in design, simple structure with low temperature sample frame water sample drainage recovery and recycle, avoids wasting of resources and economic loss, reaches energy saving and consumption reduction's purpose.

Drawings

FIG. 1 is a schematic view of a sample water discharge structure of a conventional low-temperature sampling frame;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

in the figure: 1-low temperature sampling frame, 2-branch, 3-water discharging main pipe isolation valve, 4-water tank water inlet isolation valve, 5-water tank, 6-electromagnetic valve, 7-manual isolation valve, 8-condenser hot well, 9-multi-stage water seal pipe, 10-water feeding pump sealing water return pipe, 11-remote transmission liquid level meter, 12-main pipe blow-down valve, 13-trench, 14-water discharging pipe, 15-blow-down pipe, 16-water tank blow-down valve, 17-non-pressure water discharging main pipe.

Detailed Description

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

Example (b): as shown in fig. 2, in the present embodiment, a water sample drainage recovery device for a low temperature sampling frame is provided, which includes a low temperature sampling frame 1, a drainage port of the low temperature sampling frame is provided with two branches 2, one of the branches is connected to a non-pressure drainage main pipe 17, a drainage main pipe isolation valve 3 is provided on the branch, and a water tank inlet isolation valve 4, a water tank 5, an electromagnetic valve 6, a manual isolation valve 7, and a condenser hot well 8 are sequentially provided on the other branch along a water flow moving direction.

The water tank is made of stainless steel.

In this embodiment, a multi-stage water seal pipe 9 is arranged between the manual isolation valve and the condenser hot well, a water feed pump seal water return pipe 10 is arranged above the multi-stage water seal pipe, and the water feed pump seal water return pipe is connected with the multi-stage water seal pipe through a pipeline;

in order to prevent water in the water tank from flowing into the hot well of the condenser automatically and bringing air into the hot well, the vacuum of the steam turbine is influenced, the safe operation risk of the unit is increased, the water outlet of the water tank is connected into the inlet of the multi-stage water seal pipe, and the reliability of system transformation is improved.

In the present embodiment, a remote liquid level meter 11 is installed on the side of the water tank; when the water level of the water tank reaches the highest water level set by the liquid level meter, the liquid level is transmitted to a DCS control picture of the centralized control room, and the electromagnetic valve is opened in a linkage manner, so that the water in the water tank flows to the multi-stage water seal pipe automatically and is discharged to the condenser for recovery; when the water level of the water tank is reduced to the lowest water level set by the liquid level meter, the liquid level is transmitted to a DCS control picture of the centralized control room, the electromagnetic valve is closed in a linkage mode, and the water in the water tank is cut off to be discharged.

In this embodiment, a main blowdown valve 12 is provided on a branch connected to the non-pressure drain main.

In this embodiment, a trench 13 is arranged below the side of the water tank, a drain pipe 14 is arranged between the water tank and the trench, a drain pipe 15 connected with the drain pipe is arranged below the water tank, and a drain valve 16 of the water tank is arranged on the drain pipe.

In the embodiment, during work, a 1.5m space is arranged in the open room right below the 6.4 m-layer steam-water sampling room³The water tank (the length x width x height is 1 x 1.5m), a tee joint is connected to the phi 57 drain pipe of the low-temperature sampling frame, one way is led to the water tank, and the other way is still discharged to the non-pressure water discharge main pipe according to the original design; when the unit runs, the water inlet isolation valve of the water tank is opened, the isolation valve of the water outlet main pipe is closed, and water in the low-temperature sampling frame flows into the condenser through the electromagnetic valve, the manual isolation valve and the multi-stage water seal pipe in sequence, so that the aim of recycling the water is fulfilled; when the unit stops, the water inlet isolation valve of the water tank is closed, and the isolation valve of the water discharging main pipe is opened.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A water sample drainage recovery device of a low-temperature sampling frame comprises the low-temperature sampling frame and is characterized in that a water outlet of the low-temperature sampling frame is provided with two branches, one branch is connected with a non-pressure water drain main pipe, a water drain main pipe isolation valve is arranged on the branch, and a water tank water inlet isolation valve, a water tank, an electromagnetic valve, a manual isolation valve and a condenser hot well are sequentially arranged on the other branch along the water flow moving direction.

2. The water sample drainage recovery device of the low-temperature sampling frame as claimed in claim 1, wherein a multi-stage water seal pipe is arranged between the manual isolation valve and the condenser hot well, a water feed pump seal water return pipe is arranged above the multi-stage water seal pipe, and the water feed pump seal water return pipe is connected with the multi-stage water seal pipe through a pipeline.

3. The water sample drainage recovery device for the low-temperature sampling frame as claimed in claim 1, wherein a remote liquid level meter is mounted on the side of the water tank.

4. The water sample drainage recovery device of the low-temperature sampling frame as claimed in claim 1, wherein a main pipe blowdown valve is arranged on a branch connected with a non-pressure drainage main pipe.

5. The water sample drainage recovery device of the low-temperature sampling frame as claimed in claim 1, wherein a trench is arranged below the side of the water tank, a drain pipe is arranged between the water tank and the trench, a drain pipe connected with the drain pipe is arranged below the water tank, and a drain valve of the water tank is arranged on the drain pipe.