CN208535553U - Drain valve preventing clogging up device - Google Patents

Abstract

Drain valve preventing clogging up device, it is characterized by: it is that molecular sieve adsorber bottom is provided with one to converge pipeline by what one section of thick pipe and channel closure formed, the liquid for separating out gas middle reaches is in channel closure congregate, make subsequent hydrophobic pipeline convenient for separation, channel closure bottom is picked out by the hydrophobic pipeline by forming with free half Free Float Type Steam Trap of return-air, drain valve front filter and maintenance valve, and is directly connected to trench；The described band return-air is freely connected to the thick pipe by return air valve and vapor return line on half Free Float Type Steam Trap, and the channel closure bottom also and picks out and has the active redundancy pipeline of standby valve all the way to trench；The band return-air freely has Y-series automatic-discharging device of air in half Free Float Type Steam Trap inside；It has structure simple, safe and reliable, rationally efficient, the features such as being convenient for in-site installation and later maintenance, maintenance, impurity in pipeline can be effectively prevent to bring into susceptible to plugging drain valve, increase air separation unit operational reliability, reduce air separation unit energy consumption.

Description

Drain valve preventing clogging up device

Technical field

The utility model relates to a kind of Novel steam trap valve preventing clogging up device, are primarily adapted for use in the purifying system of air separation unit In system, belong to the molecular sieve adsorber safety devices technical field of air separation plant.

Background technique

In air separation unit, air is saturated air, enters after air compressor machine compression and air cooling tower washing, cooling Molecular sieve adsorber carries out rectifying after purification, into air separation cooling box.The molecular sieve adsorber of purification system in the process, plays Impurity in air filtering is crossed, the effect of the impurity such as moisture removal, carbon dioxide, sulfide is gone, it can depth drying air.In operational process In, molecular sieve adsorber is switching pattern, a work purifying, a blowback displacement.During blowback, front can be adsorbed on Moisture in molecular sieve displaces, and a part of free moisture can be saved bit by bit in molecular sieve adsorber bottom, if excluding water not in time Point, it can be brought into absorber in the next period, shorten the molecular sieve adsorber working time, increase volume of equipment, moisture It even brings into air separation cooling box, board-like block in main heat exchanger can be made, generate safety accident.

The fluid-discharge method of mainstream is to add a shut-off valve in molecular sieve adsorber low spot at present, and directly band liquid gas is blown out. This not only increases space division energy consumptions, and compressed gas after air compressor machine is caused to be lost in vain, and can generate loud noise, pollute ring Border threatens to safety in production.Another common fluid-discharge method is plus a drain valve, this valve can be frequently occluded, and increases Follow-up maintenance cost, increased care workload.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and a kind of structure provided is simple, safety Reliably, rationally efficiently, it is convenient for personnel's operation and maintenance, it can effective, stable operation drain valve preventing clogging up device.

The utility model is completed by following technical solution: a kind of drain valve preventing clogging up device, it is in molecule Sieve absorber bottoms are provided with one and converge pipeline by what one section of thick pipe and channel closure formed, and the liquid for separating out gas middle reaches exists Channel closure congregate makes subsequent hydrophobic pipeline convenient for separation, and channel closure bottom has been picked out by free half float-ball type of band return-air The hydrophobic pipeline of drain valve, drain valve front filter and maintenance valve composition, and it is directly connected to trench.

As preferred: being connected on free half Free Float Type Steam Trap of band return-air by return air valve and vapor return line The thick pipe, and the channel closure bottom also and pick out all the way the active redundancy pipeline with standby valve to trench；Described Band return-air freely has Y-series automatic-discharging device of air in half Free Float Type Steam Trap inside.

The utility model is the improvement carried out on the basis of existing technology, can reach the same of reliable drain effect When, and the purpose of unobstructive；It has structure simple, safe and reliable, rationally efficient, safeguards, can protect convenient for personnel The features such as holding the low energy consumption and even running of air separation unit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

Detailed introduction is done to the utility model below in conjunction with attached drawing: described in the utility model a kind of thin shown in Fig. 1 Water valve preventing clogging up device, it is that molecular sieve adsorber bottom is provided with one to be converged by what one section of thick pipe 1 and channel closure 2 formed Pipeline 3, the liquid for separating out gas middle reaches make subsequent hydrophobic pipeline 4 convenient for separation, channel closure 2 in 2 congregate of channel closure Bottom is picked out by by with the return-air drain pipe that freely half Free Float Type Steam Trap 5, drain valve front filter 6 and maintenance valve 7 form Line 4, and it is directly connected to trench 8.

As preferred embodiment: passing through return-air on free half Free Float Type Steam Trap 5 of band return-air described in the utility model Valve 9 and vapor return line 10 are connected to the thick pipe 1, and 2 bottom of channel closure also and picks out all the way with service valve The active redundancy pipeline 12 of door 11 is to trench；Y-series automatic air exhausting is had inside free half Free Float Type Steam Trap 5 of band return-air Device.

Embodiment: shown in Fig. 1, a kind of Novel steam trap valve preventing clogging up device described in the utility model, it mainly includes converging Close pipeline 3, band return-air freely half Free Float Type Steam Trap 5, drain valve front filter 6, hydrophobic pipeline 4, active redundancy pipeline 12, return-air valve The compositions such as door 9.

As shown in the figure, molecular sieve adsorber bottom, which is done, converges pipeline 3, is made of one section of thick pipe 1 and channel closure 2, makes gas The liquid that body middle reaches separate out makes subsequent hydrophobic pipeline 4 convenient for separation in 2 congregate of channel closure.Hydrophobic pipeline 4 is from channel closure 2 bottoms pick out, and facilitate free moisture and enter in drain valve 5.

As shown in the figure, hydrophobic pipeline 4 is the pith of this hair utility model, and pipeline mainly includes that band return-air freely half floats Ball-type drain valve 5, drain valve front filter 6 and maintenance valve 7.Y-series automatic-discharging device of air is had inside drain valve 5, it is non- Chang Lingmin, energy automatic air exhausting, work quality are high.It is hydrophobic that filter 6 mainly prevents in leading portion container or pipeline impurity to bring into Valve；For can be online Drawing-Core, easy access and cleaning impurity.Maintenance valve 7 be then responsible for maintenance filter or drain valve after From pipeline.

As shown in the figure, before hydrophobic pipeline 4, add a bypass active redundancy pipeline 12, for overhauling in drain valve 5 or filter 6 Period temporarily uses, and will not interrupt molecular sieve adsorber normal work.The active redundancy pipeline 12 of bypass is also required under slope aspect into trench, Convenient for liquid discharge.

As shown in the figure, from the vapor return line 10 of 5 Base top contact of drain valve, it is responsible for gas phase side air in 5 valve body of drain valve It leads back to aforementioned and converges in pipeline.5 gas-liquid separation efficiency of drain valve is improved, compressed air is not lost.Meanwhile vapor return line 10 is done The gradient is upward, does not generate dead zone.10 band of vapor return line, one return air valve 9 overhauls drain valve convenient for the later period.

Claims (2)

1. drain valve preventing clogging up device, it is characterised in that: it is to be provided with one by one section of thick pipe in molecular sieve adsorber bottom Converge pipeline with what channel closure formed, the liquid for separating out gas middle reaches makes subsequent hydrophobic pipeline in channel closure congregate Convenient for separation, channel closure bottom has been picked out by free half Free Float Type Steam Trap of band return-air, drain valve front filter and maintenance valve The hydrophobic pipeline of composition, and it is directly connected to trench.

2. drain valve preventing clogging up device according to claim 1, it is characterised in that: free half float-ball type of band return-air The thick pipe is connected to by return air valve and vapor return line on drain valve, and the channel closure bottom also and picks out all the way Active redundancy pipeline with standby valve is to trench；Freely half Free Float Type Steam Trap inside is automatic with Y-series for the band return-air Empty device of air.