CN219252152U

CN219252152U - Spray drainage recovery system of analytic gas compressor

Info

Publication number: CN219252152U
Application number: CN202223454702.6U
Authority: CN
Inventors: 张迪
Original assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Current assignee: Dalian Fujia Dahua Petrochemical Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-27
Anticipated expiration: 2032-12-23

Abstract

The utility model belongs to a PSA unit in the chemical industry field, and particularly relates to a spray drainage recovery system of an analytic gas compressor, which comprises a spray tank, wherein the spray tank is connected to an atmospheric flash tank through a spray water external line, a tank top outlet of the atmospheric flash tank is connected to a flare system through a flare line, and a tank bottom outlet of the atmospheric flash tank is connected to a condensate tank through a drainage line. After spraying and draining to the normal pressure flash tank, heating and flashing the high pressure spray water in the normal pressure flash tank, discharging the small molecular hydrocarbon and chlorine to a torch system through the tank top after volatilizing, recycling the spray water to the water system through the tank bottom, and realizing the purposes of energy saving and consumption reduction through recycling the spray water.

Description

Spray drainage recovery system of analytic gas compressor

Technical Field

The utility model belongs to a PSA unit in the chemical industry field, and particularly relates to a spray drainage recovery system of an analytic gas compressor.

Background

The PSA unit analysis gas compressor of the reforming device uses cyclic spray to cool the exhaust temperature of the compressor, and a large amount of water is discharged from the bottom of the spray tank to maintain water quality.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide a spray drainage recovery system of an analytic gas compressor, which recycles spray drainage and avoids resource waste.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the desorption gas compressor spray drainage recovery system comprises a spray tank, wherein the spray tank is connected to an atmospheric flash tank through a spray water external wire, a tank top outlet of the atmospheric flash tank is connected to a torch system through a torch removing wire, and a tank bottom outlet of the atmospheric flash tank is connected to a condensate tank through a drainage wire.

Further, a control valve is arranged at the spray water outlet of the spray tank, the spray water external feeding line is connected behind the control valve, and a spray water external feeding valve is arranged on the spray water external feeding line.

Further, the atmospheric flash tank is heated by a heating coil.

Further, a drain valve is arranged on the drain line, and a fire removing torch outlet valve, a check valve and a torch system inlet valve are sequentially arranged on the fire removing torch line.

Further, a gas inlet of the spray tank is connected with a medium gas feeding pipeline, and the medium gas feeding pipeline is connected with a compressor.

Further, the medium gas feed line is provided with a compressor inlet filter and a compressor inlet silencer in the front of the compressor, and the medium gas feed line is provided with a compressor outlet silencer and a compressor outlet water cooler in the rear of the compressor.

Further, the tank top outlet of the spray tank is connected to the fuel gas pipe network through a medium gas outlet pipeline, and the tank top outlet of the spray tank is connected to a medium gas feeding pipeline through a backflow pipeline which is connected to the front path of the compressor.

Further, the tank bottom outlet of the spray tank is connected to a sewage system through a sewage discharge pipeline.

Further, the inlet of the compressor is connected with a liquid supplementing pipeline, and the liquid supplementing pipeline is provided with a water supplementing flowmeter and a water supplementing filter at the inlet of the compressor.

Further, spray tank connects spray water outlet line, is provided with the compressor spray water filter on the spray water outlet line, and spray water outlet line end passes through first export branch line and compressor entry linkage, and spray water outlet line end passes through the second export branch line and returns to the spray tank after, enters into the ordinary pressure flash tank through spray water external thread.

The beneficial effects of the utility model are as follows: after spraying and draining to the normal pressure flash tank, heating and flashing the high pressure spray water in the normal pressure flash tank, discharging the small molecular hydrocarbon and chlorine to a torch system through the tank top after volatilizing, recycling the spray water to the water system through the tank bottom, and realizing the purposes of energy saving and consumption reduction through recycling the spray water.

Drawings

FIG. 1 is a process flow diagram of a resolved gas compressor spray drainage recovery system of the present utility model;

in the figure: 1. spray tank, 2, normal pressure flash tank, 3, condensate tank, 4, compressor, 5, spray water external feed line, 6, deflagration torch line, 7, drain line, 8, control valve, 9, spray water external feed valve, 10, drain valve, 11, flare outlet valve, 12, check valve, 13, flare system inlet valve, 14, motor, 15, compressor inlet filter, 16, compressor inlet muffler, 17, compressor outlet muffler, 18, compressor outlet water cooler, 19, medium gas outlet line, 20, return line, 21, drain line, 22, make-up line, 23, make-up flow table, 24, compressor inlet make-up filter, 25, spray water outlet line, 26, compressor spray water filter, 27, first outlet leg, 28, second outlet leg;

A. and a flare system, a fuel gas pipe network, a sewage system, a turbine water pipe network and E, PSA, wherein the outlet of the flare system, the fuel gas pipe network, the sewage system, the turbine water pipe network and the uncompressed analytic gas are respectively arranged.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1, the desorption gas compressor spray drainage recovery system comprises a spray tank 1, wherein the spray tank 1 is connected to an atmospheric flash tank 2 through a spray water external line 5, a tank top outlet of the atmospheric flash tank 2 is connected to a flare system through a flare removing line 6, and a tank bottom outlet of the atmospheric flash tank 2 is connected to a condensate tank 3 through a drain line 7.

Based on the technical scheme, the PSA unit analysis gas contains H2 and C1-C6 components, after the analysis gas is compressed to 0.45Mpa by the compressor 4 from 15Kpa, a small amount of small molecular hydrocarbon is liquefied, because the spray water enters the spray tank 2 after being compressed and pressurized, the liquid level fluctuation of the spray water is large, the small molecular hydrocarbon cannot stably float on the water surface after being liquefied, meanwhile, a small amount of chloride ions in the original gas are dissolved, and the normal pressure flash tank 2 is added to flash heat to remove chlorine and small molecular hydrocarbon in the water, so that the discharged water is recovered, and the energy conservation and consumption reduction are realized.

Further, a control valve 8 is arranged at the spray water outlet of the spray tank 1, the spray water external feeding line 5 is connected to the rear of the control valve 8, and a spray water external feeding valve 9 is arranged on the spray water external feeding line 5.

Further, the atmospheric flash tank 2 is heated by a heating coil.

Further, a drain valve 10 is disposed on the drain line 7, and a deflagration torch outlet valve 11, a check valve 12 and a flare system inlet valve 13 are sequentially disposed on the deflagration torch line 6.

Further, the gas inlet of the spray tank 1 is connected with a medium gas feeding line, and the medium gas feeding line is connected with a compressor 14. The medium gas feed line is provided with a compressor inlet filter 15 and a compressor inlet muffler 16 in front of the compressor 14, and the medium gas feed line is provided with a compressor outlet muffler 17 and a compressor outlet water cooler 18 in rear of the compressor 14. The compressor inlet muffler 16 and the compressor outlet muffler 17 function to reduce noise. The compressor outlet water cooler 18 serves to cool the heated spray water for reuse.

Based on the above technical scheme, the medium gas feeding pipeline inlet medium is the analysis gas with the PSA outlet uncompressed, and the compressor inlet filter 15 is used for filtering mechanical impurities, so that the impurities are prevented from entering the machine body and damaging the compressor.

Further, the tank top outlet of the spray tank 1 is connected to a fuel gas pipe network through a medium gas outlet pipeline 19, and the compressed analytic gas enters the fuel gas pipe network through the medium gas outlet pipeline 19; the top outlet of the spray tank is connected to the medium gas feed line via a return line 20, the return line 20 being connected in front of the compressor 14.

Further, the tank bottom outlet of the spray tank 1 is connected to a sewage system by a sewage drain line 21.

Further, the inlet of the compressor is connected with a fluid supplementing pipeline 22, and a water supplementing flow meter 23 and a compressor inlet water supplementing filter 24 are arranged on the fluid supplementing pipeline 22. The inlet of the make-up line 22 is connected to the turbine water line.

Based on the above technical solution, the water replenishment flow meter 23 functions to monitor the water replenishment amount. The compressor inlet water replenishment filter 24 functions to filter mechanical impurities, preventing impurities from entering the machine body and damaging the compressor. The water enters the machine body after passing through the inlet flowmeter and the filter, and continuously supplements water for the machine body.

Further, the spray tank 1 is connected with a spray water outlet pipeline, a compressor spray water filter 26 is arranged on the spray water outlet pipeline 25, the tail end of the spray water outlet pipeline 25 is connected with the inlet of the compressor 14 through a first outlet branch line 27, and after the tail end of the spray water outlet pipeline 25 returns to the spray tank 14 through a second outlet branch line 28, the spray water enters the normal pressure flash tank 2 through the spray water outlet line 5. The compressor spray water filters 26 are arranged in two groups in parallel. The compressor spray water filter 26 functions to filter mechanical impurities, preventing the impurities from entering the machine body and damaging the compressor.

Based on the above technical scheme, the medium and spray water at the outlet of the compressor are cooled by the water cooler 18 at the outlet of the compressor and then enter the spray tank 1 for liquid separation, the medium gas is discharged to the fuel gas pipe network, and part of the cooled spray water returns to the inlet of the compressor under the pressure effect to continue cooling the compressor. And a part of the water enters the normal pressure flash tank 2 through a tank bottom control valve 8 to carry out water quality replacement and recovery.

The working process comprises the following steps: the PSA unit analysis gas is compressed to 0.45Mpa by 15Kpa through the compressor 4 to a fuel gas pipe network, a small amount of small molecular hydrocarbon is liquefied and mixed into spray water after compression, a water recovery system is added, an atmospheric pressure flash tank is added behind a spray tank control valve, the atmospheric pressure flash tank is heated by a heating coil, high pressure spray water is flashed in the atmospheric pressure flash tank, small molecular hydrocarbon and chloride ions in water are volatilized and discharged to a torch system through a tank top, the spray water is discharged into a condensate tank 3 through a tank bottom hand valve of the atmospheric pressure flash tank, and the condensate water is recycled by the condensate tank 3 into a water system.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.

Claims

1. The analysis gas compressor sprays drainage recovery system, its characterized in that: the spray tank is connected to an atmospheric flash tank through a spray water external wire, a tank top outlet of the atmospheric flash tank is connected to a torch system through a torch removing wire, and a tank bottom outlet of the atmospheric flash tank is connected to a condensate tank through a drain wire.

2. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the spray water outlet of the spray tank is provided with a control valve, the spray water external feeding line is connected behind the control valve, and the spray water external feeding line is provided with a spray water external feeding valve.

3. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the atmospheric flash tank is heated by a heating coil.

4. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the water drain line is provided with a water drain valve, and the fire removing torch line is sequentially provided with a fire removing torch outlet valve, a check valve and a torch system inlet valve.

5. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the gas inlet of the spray tank is connected with a medium gas feeding pipeline, and the medium gas feeding pipeline is connected with a compressor.

6. The resolved gas compressor spray drainage recovery system as defined in claim 5, wherein: the medium gas feeding pipeline is provided with a compressor inlet filter and a compressor inlet silencer at the front path of the compressor, and is provided with a compressor outlet silencer and a compressor outlet water cooler at the rear path of the compressor.

7. The resolved gas compressor spray drainage recovery system as defined in claim 5, wherein: the tank top outlet of the spray tank is connected to the fuel gas pipe network through a medium gas outlet pipeline, and the tank top outlet of the spray tank is connected to a medium gas feeding pipeline through a backflow pipeline which is connected to the front path of the compressor.

8. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the tank bottom outlet of the spray tank is connected to a sewage system through a sewage draining pipeline.

9. The resolved gas compressor spray drainage recovery system as defined in claim 5, wherein: and an inlet of the compressor is connected with a fluid supplementing pipeline, and a water supplementing flowmeter and a compressor inlet water supplementing filter are arranged on the fluid supplementing pipeline.

10. The resolved gas compressor spray drainage recovery system as defined in claim 1, wherein: the spray tank is connected with a spray water outlet pipeline, a compressor spray water filter is arranged on the spray water outlet pipeline, the tail end of the spray water outlet pipeline is connected with the compressor inlet through a first outlet branch line, and after the tail end of the spray water outlet pipeline returns to the spray tank through a second outlet branch line, the spray water enters the normal pressure flash tank through a spray water external line.