Condensate water recovery device suitable for low-pressure steam pipeline

Abstract

The utility model relates to a condensate water recovery device suitable for a low-pressure steam pipeline. The condensate water recovery device comprises a stop valve, a filter, a steam trap, a check valve, a liquid level meter, a safety valve and a condensate water recovery tank, the stop valve, the filter, the drain valve, the stop valve and the check valve are sequentially connected in series, and the check valve is connected with the condensate water recovery tank through a pipeline; a flushing pipe is designed on a pipeline in front of the stop valve, and the stop valve is arranged on a branch pipe. An inspection pipe is arranged behind the drain valve, and a stop valve is arranged on the inspection pipe. And a stop valve and a check valve are arranged on the steam condensate pipeline behind the check branch pipe. And the condensate water recovery pipe is connected with the condensate water recovery tank body. The condensate water recovery device is made of materials which are low in price and easy to obtain, and condensate water in a low-pressure steam pipeline can be collected. And low-pressure steam is used for conveying condensate water, no extra power load exists, and power consumption of a production site is saved to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of condensate recovery, and particularly relates to a condensate recovery device applicable to a low-pressure steam pipeline, which is applied to the technical fields of petrochemical industry, metallurgy and sulfuric acid industry. Background Art

[0002] In the fields of petrochemical industry, metallurgy and sulfuric acid industry, low-pressure steam is often used for heating and heat preservation. After heat exchange, the low-pressure steam generates condensate. The inorganic impurities in this part of condensate are relatively low and can be reused. Content of the Utility Model

[0003] The utility model provides a condensate recovery device applicable to a low-pressure steam pipeline, which can achieve the goal of recovering condensate resources at a relatively low cost.

[0004] In order to solve the above technical problems, the utility model provides a condensate recovery device applicable to a low-pressure steam pipeline, which is characterized in that: it includes a filter 4, a steam trap 3, a check valve 1, and a condensate recovery tank 18; a front stop valve 5, a filter 4, a steam trap 3, a rear stop valve 2, and a check valve 1 are connected in series on a condensate collection pipeline 6 in sequence, and the check valve 1 is connected to the condensate recovery tank 18; a flushing pipe 10 and an inspection pipe 8 are respectively arranged on the condensate collection pipeline 6; a condensate recovery pipe 21 and a blowdown pipe are connected to the bottom of the condensate recovery tank; a motive steam pipe 13, a vent pipe 14, and a safety valve 15 are respectively arranged on the upper part of the condensate recovery tank.

[0005] Beneficial Effects: By using low-cost and easily obtainable materials to make a condensate recovery device, the utility model can collect the condensate in the low-pressure steam pipeline. And it uses low-pressure steam to transport the condensate, without additional power load, thus saving the electric energy consumption at the production site to the greatest extent. Description of the Drawings

[0006] Figure 1 Structural schematic diagram of the utility model;

[0007] Wherein: check valve 1, stop valve 2, steam trap 3, filter 4, stop valve 5, condensate collection pipeline 6, stop valve 7, inspection pipe 8, stop valve 9, flushing pipe 10, blowdown pipe and sampling pipe 11, stop valve 12, motive steam pipe 13, vent pipe 14, safety valve 15, motive steam stop valve 16, vent pipe stop valve 17, condensate recovery tank 18, liquid level gauge 19, stop valve 20, condensate recovery pipe 21. Detailed Embodiments

[0008] In order to make the purpose, content and advantages of the utility model clearer, the following further describes the detailed embodiments of the utility model.

[0009] A condensate water recovery device applicable to low-pressure steam pipelines proposed by the present utility model includes a globe valve, a filter 4, a steam trap 3, a check valve 1, a liquid level gauge 19, a safety valve 15, and a condensate water recovery tank 18; the working pressure of the condensate water recovery tank may be greater than 0.1 MPa according to the condensate water recovery requirements, and it is a pressure vessel. The material selection and design of the pressure vessel should be carried out in accordance with GB-150.

[0010] A globe valve 5, a filter 4, a steam trap 3, a globe valve 2, and a check valve 1 are connected in series on the low-pressure steam condensate collection pipeline in sequence, and the check valve 1 is connected to the condensate water recovery tank 18 through a pipeline;

[0011] A flushing pipe 10 should be designed on the pipeline before the globe valve 5, and a globe valve is arranged on the branch pipe.

[0012] An inspection pipe 8 is arranged behind the steam trap 3, and a globe valve is arranged on the inspection pipe 8. Globe valves and check valves are arranged on the steam condensate pipeline behind the inspection branch pipe.

[0013] The condensate water recovery pipe 21 is connected to the condensate water recovery tank.

[0014] An air vent pipe 14 is arranged on the condensate water recovery tank, and a globe valve is arranged on the air vent pipe. A safety valve 15 is arranged on the condensate water recovery tank, and the working pressure of the safety valve should be selected according to 1.1 times of the power steam pressure value.

[0015] A power steam pipe 13 is arranged on the condensate water recovery tank, and a globe valve should be arranged on the power steam pipe 13. A liquid level gauge 19 should be arranged on the side of the condensate water recovery tank to observe the condensate water level in the tank body. The bottom of the condensate water recovery tank is connected with a condensate water recovery pipe 21 and a blowdown pipe.

[0016] A low-cost condensate water recovery device applicable to low-pressure steam pipelines mainly includes the following operation processes:

[0017] Step S0: Use the low-pressure steam condensate collection pipeline to recover condensate water to the condensate water recovery tank.

[0018] Step S1: Close the check valve, globe valve on the low-pressure steam condensate collection pipe and the globe valve on the air vent pipe of the condensate water recovery tank, and open the globe valve on the condensate water recovery pipe at the bottom of the tank.

[0019] Step S2: When the condensate water level reaches the low point, close the power steam globe valve and the globe valve on the recovery pipeline, and open the globe valve on the air vent pipeline and the globe valve on the steam condensate pipeline.

[0020] Step S3: When recovering condensate water, it is necessary to test the quality of the condensate water according to the requirements.

[0021] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A condensate recovery device suitable for a low-pressure steam pipeline, characterized in that: It includes a filter, a steam trap, a check valve and a condensate recovery tank; the front stop valve, the filter, the steam trap, the rear stop valve and the check valve are connected in series on the condensate collection pipe in sequence, and the check valve is connected to the condensate recovery tank; the condensate collection pipe is provided with a flushing pipe and an inspection pipe; the bottom of the condensate recovery tank is connected with a condensate recovery pipe and a drain pipe; the upper part of the condensate recovery tank is provided with a power steam pipe, a vent pipe and a safety valve.

2. A condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: The working pressure of the condensate recovery tank is greater than 0.1MPa and it is a pressure vessel.

3. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: Stop valves are installed on the flushing pipe, inspection pipe, sewage pipe and condensate recovery pipe.

4. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: The flushing pipe is arranged on the condensate collecting pipe in front of the front stop valve.

5. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: The inspection pipe is set between the rear stop valve and the steam trap.

6. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: A stop valve is provided on the vent pipe.

7. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: The working pressure of the safety valve is 1.1 times the power steam pressure.

8. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: A stop valve is provided on the power steam pipe.

9. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: A liquid level gauge is arranged on one side of the condensate recovery tank.

10. The condensate recovery device suitable for a low-pressure steam pipeline according to claim 1, characterized in that: The sewage pipe also serves as a sampling tube.

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