CN201811878U

CN201811878U - Analysis evaporator

Info

Publication number: CN201811878U
Application number: CN2010205574071U
Authority: CN
Inventors: 陈文选
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-11
Filing date: 2010-10-11
Publication date: 2011-04-27
Anticipated expiration: 2020-10-11

Abstract

The utility model discloses an analysis evaporator which is characterized by being internally provided with a heating flow path body. A Pt100 platinum resistor is inserted in the heating flow path body, one end of a heating wire is connected in series with a temperature switch, the other end of the heating wire is connected with a power connection terminal, a signal line of the Pt100 platinum resistor is connected with a control signal connection terminal, a shell is a barrel shaped container, and a connecting flange, a gas inlet connecting pipe, a gas output valve, a degassing end valve, an external power supply and the signal line are fixed on the shell through a connecting box. The analysis evaporator is directly fixed and installed on a sampling wall of an air separation tower or at the bottom of a storage groove, one Pt100 platinum resistor (or three Pt100 platinum resistors) are arranged in the analysis evaporator and used for providing signal for a DCS (analysis chamber) to set, measure and control the temperature of the heating flow path body in the analysis evaporator; and the analysis evaporator has the advantages of compact structure, small size, stable performance, high adjustable performance, high safety and practicability, long service life and wide application range and is convenient to operate.

Description

Analyze evaporator

Technical field

The utility model relates to a kind of analysis evaporator, belonging to vaporizes to extract with liquid gas as the air separation unit analysis fast uses apparatus technology.

Background technology

Analyze evaporator and be the rapid extraction equipment as foreign gas in the analytic liquid oxidizing gases in the air separation plant industry and trace gas content, the analysis evaporator can be to the hydrocarbon of liquid gas in the main ice chest or in the storage tank; Aerial oxygen (the nitrogen of drawing liquid in the crude argon column, argon) gas content, crude krypton xenon (product) bottom hydrocarbon, carbon dioxide, nitrous oxide, go out nitrogen hydride such as adsorber nitrous oxide, dangerous foreign gases such as hydrocarbon THC are with content, and high-pure gas separate in trace and trace gas content, for its on-line continuous check and analysis or off-line sample analysis provide in good time, thermophilic, in right amount with stable source of the gas, existing equipment palpus operating personnel need arrive air separation column or storage tank (jar) is on-the-spot by the direct sample of switch mouth of pipe valve, because the sample tap of liquid gas is ultralow temperature gas (about 198 ℃), to flow velocity size and the bad control of discharge process, usually what and Hui Leng of sample gas caused the instability of sample gas source of the gas, simultaneously often there is cryogenic liquid to splash in this process or overflows, there is certain potential safety hazard in operating personnel.

Summary of the invention

The utility model proposes a kind of the vaporization fast with liquid gas and extract the analysis evaporator of usefulness as the air separation unit analysis, its purpose is intended to overcome lattice defective on the existing in prior technology, has that volume is little, good stability, simple, convenient quick, safe and reliable.

Technical solution of the present utility model: it is characterized in that one-piece construction, heating flow path main body is equipped with in inside, is inserted with the Pt100 platinum resistance in heating flow path main body, and an end of heating wire is connected in series with temperature switch, and the other end of heating wire and power connector end join; The signal wire of Pt100 platinum resistance and control signal splicing ear join; Shell is the cylindrical container body, and joint flange, inlet pipe connection, gas delivery valve, venting end valve and external power supply and signal wire are fixed on the shell with terminal box.

Advantage of the present utility model: can directly be fixedly mounted on the air separation column sampling wall or storage tank (jar) bottom, the scene provides one the tunnel " 220V, 3A " AC power, preheat installing interior electrical heating wire (500W) zero load earlier during use, when reaching capping temperature value, by opening gas delivery valve extraction and analysis sample gas.In vaporization overcurrent process, the work normality temperature in the heating flow path main body is at 30 ℃～40 ℃, and the sample temperature value that arrives the exit is at 10 ℃～20 ℃; Be provided with one road pt100 (or three tunnel) platinum resistance in the device simultaneously, provide signal the temperature of heating flow path main body in installing to be set, measured and controls to DCS (analysis room).Good looking appearance, structure is tight, volume is little, in light weight, easy for installation, practical proof: its stable performance, strong, the safe and practical property of easy to operate, adjustable performance are good, characteristics such as long service life can be widely used in fields such as iron and steel metallurgy, petroleum and petrochemical industry, chemical industry chemical fertilizer, Coal Chemical Industry, building materials.

Description of drawings

Accompanying drawing 1 is a structural representation of analyzing evaporator.

Accompanying drawing 2 is AV-6-C model circuit connection diagrams.

Accompanying drawing 3 is to be AV-6-3T model circuit connection diagram.

Accompanying drawing 4 is gas process flow diagrams.

Among the figure 1 is Pt100 platinum resistance, the 2nd, venting end valve, the 3rd, and heating wire, the 4th, inlet pipe connection, the 5th, joint flange, the 6th, heating flow path main body, the 7th, shell, the 8th, gas delivery valve, the 9th, three-way connection, the 10th, terminal box, the 11st, long coil pipe, X1 are power connector end (5 connectivity port 1#-5#); X2 is control signal splicing ear (3 (1#-3#) or 7 (1#-7#) connectivity ports).

Embodiment

Contrast accompanying drawing 1, its structure is an one-piece construction, and heating flow path main body 6 is equipped with in inside, is inserted with Pt100 platinum resistance 1 in heating flow path main body, and an end of heating wire 3 is connected in series with temperature switch, and the sub-X1 of the other end of heating wire and power connector end joins; The signal wire of Pt100 platinum resistance and control signal splicing ear X2 join; Shell 7 is the cylindrical container body, and joint flange 5, inlet pipe connection 4, gas delivery valve 8, venting end valve 2 and external power supply and signal wire are fixed on the shell with terminal box 10.

Heating flow path main body 6 is that aluminium is cylindrical, heating flow path main body innermost layer is the cylindrical heater of aluminium of embedded heating wire, long coil pipe 11 applies and is enclosed within this cylindrical heater outside, cylindrical heater conducts heat to the liquid gas in the long coil pipe by heat-conducting mode, liquid gas enters long coil pipe from a port of three-way connection 9, be heated after the vaporization fast, open gas delivery valve 8, extraction and analysis sample gas; The another port of three-way connection 9 is by venting end valve 2 direct extract oxidizing gases (off-line analysis is used) or discharge residual air.

Joint flange 5 (being used for fixedlying connected with on-the-spot air separation plant) is fixed on air separation unit sampling spot outer wall place, inlet pipe connection 4 is connected with the sampling spot pipe, heating wire 3 in the heating flow path main body 6 joins by sub-X1 terminal of power connector end and external power supply (220V, 3A) in the terminal box 10, and the power supply heating is provided; Liquid gas enters the air intake opening of the long coil pipe 11 that is heated by a road in the three-way connection 9, fast after the vaporization, by gas delivery valve 8 (being installed in the gas outlet of long coil pipe 11) the output sample gas of scalable sample airshed, another road in the three-way connection 9 directly obtains the off-line analysis liquid gas by venting end valve 2; Temperature switch is connected with heating wire 3 on the heating flow path main body 6; directly between 90～150 ℃, control the heating wire heat supply temperature; be fixed on the control signal splicing ear X2 that the Pt100 platinum resistance 1 in the heating flow path main body 6 is passed through in the terminal box 10 simultaneously; temperature signal is transferred to DCS (scattered control system); regulate and control heating-up temperature by DCS control heating wire 3 power supplys again; with the analysis that reaches suitable temperature sample gas, platinum resistance and temperature switch play two-way observing and controlling and protective effect.

Contrast accompanying drawing 2, Fig. 3, its structure comprises sub-X1 of power connector end and control signal splicing ear X2, feed cable inserts the sub-X1 of power connector end, provides power supply (220V, 3A) to heat to heating wire; Control signal splicing ear X2 accepts the temperature signal of Pt100 platinum resistance 1, is transferred to DCS by signal cable, and the DCS analysis room reaches the required temperature of regulation and control vaporization sample gas by the sub-X1 regulation and control of power connector end electrothermal wire power.Wherein X1 (5 connectivity ports) is power connector end; X2 terminal (3 or 7 connectivity ports) is the control signal splicing ear.

Contrast accompanying drawing 4, the liquid gas of sampling spot is by the inlet pipe connection input of analyzing in the evaporator, be divided into two-way by three-way connection, wherein one tunnel liquid gas enters the long coil pipe in the heating flow path main body, in the process of flowing through, fully accept the heat conduction of heating wire, vaporization fast in the short time, at gas delivery valve delivery outlet output analysis sample gas, the sample temperature degree and the flow of output are controlled and regulated by DCS pulpit and gas delivery valve; Another road liquid gas of three-way connection can directly be exported, and for off-line analysis usefulness, residual air also can be passed through this release simultaneously.

The device range of application: this device is widely used in the sky branch trade the extraction with sample gas of fractionator and storage tank (jar) inner analysis, as: iron and steel, Aero-Space industry system oxygen; Make nitrogen, oxygen in chemical fertilizer, Coal Chemical Industry, the petrochemical industry; Industrial hydrogen; The extraction of argon gas, helium; The extraction of rare gas such as the krypton of required usefulness " gold gas ", xenon in solar power silicon crystal, liquid crystal, accurate electric elements production and the manufacture process; Medical high purity oxygen; Civilian food processing is with carbon dioxide etc., and other needs in air gas separated composition and gaseous impurities content analysis with the extraction equipment of sample gas.

Analyzing the evaporator one-piece construction is that stainless steel is made (terminal box is an aluminium matter), is applicable to the special places of industry outdoor environment such as iron and steel metallurgy, petroleum and petrochemical industry, chemical industry chemical fertilizer, Coal Chemical Industry, building materials.

Claims

1. the analysis evaporator is characterized in that one-piece construction, and heating flow path main body is equipped with in inside, is inserted with the Pt100 platinum resistance in heating flow path main body, and an end of heating wire is connected in series with temperature switch, and the other end of heating wire and power connector end join; The signal wire of Pt100 platinum resistance and control signal splicing ear join; Shell is the cylindrical container body, and joint flange, inlet pipe connection, gas delivery valve, venting end valve and external power supply and signal wire are fixed on the shell with terminal box.

2. analysis evaporator according to claim 1, it is characterized in that heating the flow path main body is that aluminium is cylindrical, heating flow path main body internal layer is the cylindrical heater of aluminium of embedded heating wire, long coil pipe applies and is enclosed within the cylindrical heater of aluminium outside, one port of long coil pipe and three-way connection joins, and the another port of three-way connection connects the venting end valve.

3. analysis evaporator according to claim 1 is characterized in that joint flange is fixed on air separation unit sampling spot outer wall place, and inlet pipe connection is connected with the sampling spot pipe.

4. analysis evaporator according to claim 1 is characterized in that power connector end has 5 connectivity ports, and the control signal splicing ear has 3 or 7 connectivity ports.