CN103894038B - The gas product output device of high-purity, high compacting gas equipment - Google Patents
The gas product output device of high-purity, high compacting gas equipment Download PDFInfo
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- CN103894038B CN103894038B CN201410117920.1A CN201410117920A CN103894038B CN 103894038 B CN103894038 B CN 103894038B CN 201410117920 A CN201410117920 A CN 201410117920A CN 103894038 B CN103894038 B CN 103894038B
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Abstract
The invention provides a kind of gas product output device of high-purity, high compacting gas equipment, its gas product way of output is flexible, and gas product steady quality, system time is short, and operating cost is low, strong to different adaptability for working condition.It comprises pressure swing adsorption gas separation device, it is characterized in that: described pressure swing adsorption gas separation device is communicated with gas product surge tank through output pipe, counterbalance valve B, described gas product surge tank is connected with counterbalance valve C through filter B, is connected with at least one in low voltage product gas output device and middle high-pressure gas product output device after described counterbalance valve C.Described low voltage product gas output device comprises the valve C be communicated with counterbalance valve C through pipeline; Described middle high-pressure gas product output device comprises the valve D be directly connected with counterbalance valve C, the gas product supercharger be connected with valve D, is provided with check valve C and valve F after gas product supercharger; Between valve F and check valve C, pipeline is set and is communicated with valve E.
Description
Technical field
The present invention relates to gas compressing equipment, possess and relate to a kind of high-purity high compacting gas equipment.
Background technology
Industrial gasses are separated conventional PSA Gas and are separated (PSA) equipment generally by feed gas preprocessing devices such as source of the gas compressor, gas-liquid separator, freezing type drier, filters, pressure swing adsorption gas separation device, purity of product gas analyzer, drying (purifying) device, supercharger, and be balance sysmte gas flow rate and the composition such as source of the gas surge tank, gas product surge tank (process tank) reducing the fluctuation of its system pressure, in order to control the qualified gas product that pressure swing adsorption gas separation device can export, only have by purity of product gas analyzer, uniting and adjustment between pressure-reducing valve and other valve, after determining the flow of output products gas, and when reaching certain operating pressure in system, pressure swing adsorption gas separation device could export qualified gas product, because pressure varying adsorption gas separating equipment is in the stage of starting working (or the startup stage of being called), the gas product exported all does not reach purity requirement, need follow-up output can reach the gas product of purity requirement, to gas product surge tank and the intrasystem gas product not reaching purity requirement in advance, carry out filling converting, displacement, can only by vain emptying of substandard product gas discharge pipe.
Pressure varying adsorption gas separating equipment is of many uses, improvement in the last few years for pressure varying adsorption gas separating equipment is also a lot, but actual conditions are, do not provide effective system time short, the gas separation system control method of qualified products gas can be gone out by quick separating at any time.Meanwhile, user requires that pressure varying adsorption gas separating equipment can adapt to work under various working condition, and the gas product way of output is flexible, output quality is stablized, environmentally friendly, and requires to reduce equipment energy consumption, reduce operating cost.
Summary of the invention
Technical problem to be solved by this invention is the gas product output device providing a kind of high-purity, high compacting gas equipment, and its gas product way of output is flexible, and gas product steady quality, system time is short, and operating cost is low, strong to different adaptability for working condition.
For achieving the above object, the gas product output device of high-purity, high compacting gas equipment of the present invention, comprise pressure swing adsorption gas separation device, it is characterized in that: described pressure swing adsorption gas separation device is communicated with gas product surge tank through output pipe, counterbalance valve B, described gas product surge tank is connected with counterbalance valve C through filter B, is connected with at least one in low voltage product gas output device and middle high-pressure gas product output device after described counterbalance valve C.
Preferably, described low voltage product gas output device comprises the valve C be communicated with counterbalance valve C through pipeline; Described middle high-pressure gas product output device comprises the valve D be directly connected with counterbalance valve C, the gas product supercharger be connected with valve D, is provided with check valve C and valve F after gas product supercharger; Between valve F and check valve C, pipeline is set and is communicated with valve E.
Preferably, after described valve F, be provided with purification devices, described purification devices is communicated with valve G; Pipeline between purification devices and valve G is connected with middle high-pressure gas cylinder through valve H.
After have employed technique scheme, its advantage applies exists:
Gas product output device comprises low voltage product gas output device and middle high-pressure gas product output device; The gas product way of output is flexible, fully adapts to user's needs.
After gas product output device is arranged on described counterbalance valve C.As long as the pressure that the equipment of reaching can normally work, what equipment exported must be just qualified gas product.If do not reach the operating pressure of equipment, equipment is output products gas not, and do not have the underproof system of gas product contaminated equipment and the gas pipeline network of user, equipment of the present invention, environmental suitability is very strong.
When the purity of product gas of user to demand has change, or the conversion of pressure swing adsorption gas separation device work-yard is when causing operating mode (ambient atmosphere pressure, temperature) to change, and source of the gas compressor performance variation material gas quantity is when diminishing, by the adjustment to counterbalance valve, make pressure swing adsorption gas separation device can be in work in normal working pressure range all the time, thus guarantee the gas product satisfactory purity all the time of output, thus the present invention possesses the good advantage of adaptability for working condition.
Preferably, described middle high-pressure gas cylinder recharges pipeline through decompression and is communicated with the export pipeline of counterbalance valve B, and described decompression recharges on pipeline and is provided with valve I and pressure-reducing valve A.
Purity of product gas analyzer is provided with between described filter B and counterbalance valve C.
Flowmeter is connected with through valve B, pressure-reducing valve B after described counterbalance valve C.
In the technical scheme of injury, between check valve B and gas product surge tank between valve H and middle high-pressure gas cylinder, arrange decompression and recharge pipeline, decompression recharges on pipeline and arranges valve I, pressure-reducing valve A; The high purity product gas that device separates goes out, is stored in middle high-pressure gas cylinder; When needs are when producing highly purified gas product once starting shooting, high pressure high purity product gas in middle high-pressure gas cylinder will be stored in, through pressure-reducing valve A reduced pressure delivery in gas product surge tank, realize pressure swing adsorption gas separation device once start shooting time be in normal separation, export high purity product gas time duty and condition of work under, thus further shorten system time, reduce operating cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gas product output device embodiment one of high-purity, high compacting gas equipment of the present invention;
Fig. 2 is the structural representation of the gas product output device embodiment two of high-purity, high compacting gas equipment of the present invention;
Fig. 3 is the structural representation of the gas product output device embodiment three of high-purity, high compacting gas equipment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
The present invention as the gas product output device of high-purity, the high compacting gas equipment based on PSA technology, can carrying out on pretreated basis to unstripped gas, by applying technical scheme of the present invention, carrying out low pressure or the output of middle high-pressure gas product; Meanwhile, also the position transporting compressed gas bodies such as the gas product surge tank of gas equipment are suppressed, the object of reach shortening system time, increasing work efficiency by gas product output device of the present invention to based on the high-purity, high of PSA technology.
Embodiment one
As shown in Figure 1, the present embodiment is applied to a kind of high-purity, high compacting gas equipment based on PSA technology.
In the present embodiment, based on high-purity, the high compacting gas equipment of PSA technology, comprise source of the gas compressor 1, described source of the gas compressor 1 is communicated with source of the gas surge tank 8 through gas-liquid separator A2, freezing type drier 3, gas-liquid separator B4, filter A5, is close to source of the gas surge tank 8 place and is provided with the counterbalance valve A7 that can control upstream pressure between filter A5 and source of the gas surge tank 8; Between filter A5 and counterbalance valve A7, be provided with source of the gas bypass 6, described source of the gas surge tank 8 communicates with source of the gas bypass 6 through source of the gas surge tank gas exhaust piping 9, check valve A10; Described source of the gas bypass 6 is communicated with pressure swing adsorption gas separation device 12 through valve A11; Described pressure swing adsorption gas separation device 12 is communicated with gas product surge tank 20 through output pipe 15, counterbalance valve B18, and described gas product surge tank 20 is connected with counterbalance valve C23 through filter B21, is connected with gas product output device after described counterbalance valve C23.
Described pressure swing adsorption gas separation device 12 comprise work in coordination, the pressure-swing absorber A13 of alternation and pressure-swing absorber B14.
Described gas product output device comprises low voltage product gas output device and middle high-pressure gas product output device.In the present invention, after gas product output device is arranged on described counterbalance valve C23.As long as the pressure that the equipment of reaching can normally work, what equipment exported must be just qualified gas product.If do not reach the operating pressure of equipment, equipment is output products gas not, and do not have the underproof system of gas product contaminated equipment and the gas pipeline network of user, equipment of the present invention, environmental suitability is very strong.
Described low voltage product gas output device comprises the valve C26 be communicated with counterbalance valve C23 through pipeline; By valve C26 for user exports low pressure qualified products gas.
Described middle high-pressure gas product output device comprises the valve D27 be directly connected with counterbalance valve C23, the gas product supercharger 28 be connected with valve D27, is provided with check valve C29 and valve F31 after gas product supercharger 28; Between valve F31 and check valve C29, pipeline is set and is communicated with valve E30.By valve E30 for user exports middle high-pressure qualified products gas.
After valve F31, be provided with purification devices 32, described purification devices 32 is communicated with valve G33, and the pipeline between purification devices 32 and valve G33 is connected with middle high-pressure gas cylinder 35 through valve H34.By the purifying drying process further of purification devices 32 pairs of middle high-pressure qualified products gas, obtain high-purity gas product; High-purity gas product, middle high-pressure gas cylinder 35 is entered by valve H34, the high purity product be pressurized is so incensed that to fill bottle and is stored, or after being cushioned by middle high-pressure gas cylinder 35, the high-purity gas product of middle high-pressure is exported by valve G33, and the middle high-pressure gas cylinder for user carries out inflating or directly for user.
In the present embodiment, the blow-off pipe of gas-liquid separator A2, freezing type drier 3, gas-liquid separator B4, filter A5 is pooled to waste liquid separated and collected device 38, the exhaust pipe of source of the gas surge tank 8 is also pooled to waste liquid separated and collected device 38, be convenient to waste liquid and concentrate stores processor, described waste liquid separated and collected device 38 is provided with silencer 39.
The exhaust pipe of source of the gas surge tank 8, gas product surge tank 20, is pooled on waste liquid separated and collected device 38, and carries out waste gas noise elimination discharge by silencer 39.When in the stage of starting working of equipment or when may occur in the course of the work exporting substandard product gas, the substandard product gas of output can be discharged in time, thus shortens system time.
In the present embodiment, between described filter B 21 and counterbalance valve C23, be provided with purity of product gas analyzer 22.
Be connected with the flowmeter 25 of testing product gas through valve B24, pressure-reducing valve B40 after described counterbalance valve C23.
Embodiment two
As shown in Figure 2, the present embodiment is applied to high-purity, the high compacting gas equipment based on PSA technology, is with the difference of embodiment one:
One, be parallel with displacement gas bypass 16 between described pressure swing adsorption gas separation device 12 and counterbalance valve B18, described displacement gas bypass 16 be provided with check valve B17 and choke valve 19.Counterbalance valve B18 place before gas product surge tank 20, displacement gas bypass 16 in parallel is set, by the throttle orifice of the check valve B17 in displacement gas bypass and choke valve 19, qualified products gas in gas product surge tank 20 will be stored in, after pressure-swing absorber A13 or pressure-swing absorber B14 all presses, again the gas of pressure-swing absorber top with impurity is pressed forward, simultaneously under the condition of all pressing (lower than operating pressure), displace the impurity of pressure-swing absorber apex suction, reduce the gaseous impurity concentration contained in adsorbent, pressure-variable adsorption top of tower is made to be in strong adsorbed state, guarantee that the purity of product gas that pressure swing adsorption gas separation device exports is higher further.
Two, on the pipeline between counterbalance valve C23 and valve D27, be set to the blow-off pipe of waste liquid separated and collected device 38, and valve L45 is set on pipeline.Its object and embodiment one similar, can when the stage of starting working of equipment or may occur in the course of the work export substandard product gas, the substandard product gas of output is discharged in time, thus shorten system time; Blowdown effect can be played in addition.
Embodiment three
As shown in Figure 3, the present embodiment is applied to high-purity, the high compacting gas equipment based on PSA technology, in the present embodiment, to between check valve B17 and gas product surge tank 20 between valve H34 and middle high-pressure gas cylinder 35, arrange decompression and recharge pipeline 46, decompression recharges on pipeline 46 and arranges valve I36, pressure-reducing valve A37; The high purity product gas that device separates goes out, is stored in middle high-pressure gas cylinder 35; When needs are when producing highly purified gas product once starting shooting, high pressure high purity product gas in middle high-pressure gas cylinder 35 will be stored in, through pressure-reducing valve A37 reduced pressure delivery in gas product surge tank 20, realize pressure swing adsorption gas separation device once start shooting time be in normal separation, export high purity product gas time duty and condition of work under, thus further shorten system time, reduce operating cost.
Gas product surge tank 20 and the blow-off pipe of valve L45, be pooled to the secondary inlet mouth of source of the gas compressor 1, form gas withdrawal line 43, gas withdrawal line 43 is arranged check valve D44, prevent gas backstreaming, realize the recycling of defective gas (waste gas).
After application the present invention, based on high-purity, the high compacting gas equipment of PSA technology, in normal work, as long as there is the pressure feed gas reaching equipment job requirement, equipment just can produce qualified gas product, equipment, without system time, does not even arrange because needing long-time discharge that the substandard product gas of indispensability unloads place system automatically; In the debug process of only not dispatching from the factory at equipment, and equipment is after maintenance, when there are unstripped gas or impure gas product in the system flow space of equipment, the gas product manufactured when just needing to start shooting, the unstripped gas in device systems space or impure gas product are replaced, because the purity of product gas for replacing is high, the time that need replace is short, therefore system time is also very short.
After application the present invention, suppress in the process of gas equipment for separating of output products gas based on the high-purity, high of PSA technology, the moisture dust of generation is separated, is collected, and be convenient to concentrate and carry out environmental protection treatment, waste gas passes through discharge of eliminating the noise, to working environment close friend.
According to the present invention, by the pressure in Controlling Technology flow process, ensure that high-purity, the high compacting gas device fabrication based on PSA technology goes out the high purity product gas of middle high-pressure, ensure under the pressure condition meeting purity requirement, the flow that equipment exports high purity product gas is in optimum state always simultaneously.Avoiding existing equipment need by constantly adjusting the flow that equipment exports, control the quality (purity) of gas product, or look the purity situation of gas product, by constantly regulating unstripped gas gas source and flow amount, control the output flow of gas product, and cause the pressure in existing equipment to occur wide fluctuations, make existing equipment be in unsure state for a long time.It also avoid the purity of product gas of existing equipment output higher than when requiring, because because regulating difficulty, (gas product surge tank 20 volume is larger, the gas product exported with the delivery outlet of pressure swing adsorption gas separation device 12 has larger hysteresis quality, in addition the detection hysteresis quality of purity of product gas analyzer 22, effectively can not regulate in good time, detect the purity of output products gas, regulating time is long.), and no longer carry out the adjustment of purity of product gas, make the purity of product gas of output, be in the state higher than index request for a long time, thus bring unnecessary energy waste.
By the pressure in Controlling Technology flow process, make to suppress gas equipment in very short time based on the high-purity, high of PSA technology, produce the high purity product gas of middle high-pressure.When equipment is in hypobaric, or source of the gas pipeline has leakage phenomenon, or the source of the gas compressor performance of equipment is deteriorated, and capacity reduces, as long as the minimum pressure that the equipment that reaches can normally work, what equipment exported must be just qualified gas product.If the operating pressure that the equipment that do not reach is minimum, not output products gas, do not have the underproof system of gas product contaminated equipment and the gas pipeline network of user, equipment of the present invention, environmental suitability is very strong.
The gas product that pressure swing adsorption gas separation device 12 manufactures, not step-down in the process being transported to gas product supercharger 28, gas product is not when being depressurized, more be conducive to conveying, when particularly gas product uses after needing supercharging storage or supercharging, avoid because of repressurize after reducing pressure and the very large energy waste caused.
Claims (3)
1. the gas product output device of one kind high-purity, high compacting gas equipment, comprise pressure swing adsorption gas separation device (12), it is characterized in that: described pressure swing adsorption gas separation device (12) is through output pipe (15), counterbalance valve B(18) be communicated with gas product surge tank (20), described gas product surge tank (20) is through filter B(21) be connected with counterbalance valve C(23), described counterbalance valve C(23) after be connected with in low voltage product gas output device and middle high-pressure gas product output device at least one; Described low voltage product gas output device comprises through pipeline and counterbalance valve C(23) the valve C(26 that is communicated with); Described middle high-pressure gas product output device comprises and counterbalance valve C(23) the valve D(27 that is directly connected), with valve D(27) the gas product supercharger (28) that is connected, after gas product supercharger (28), be provided with check valve C(29) and valve F(31); At valve F(31) and check valve C(29) between, pipeline and valve E(30 are set) be communicated with; Valve F(31 described) after be provided with purification devices (32), described purification devices (32) and valve G(33) be communicated with; Purification devices (32) and valve G(33) between pipeline on through valve H(34) be connected with middle high-pressure gas cylinder (35); Described middle high-pressure gas cylinder (35) through decompression recharge pipeline (46) and counterbalance valve B(18) export pipeline be communicated with, described decompression recharges on pipeline (46) and is provided with valve I(36) and pressure-reducing valve A(37).
2. the gas product output device of high-purity, high compacting gas equipment as claimed in claim 1, is characterized in that: at described filter B (21) and counterbalance valve C(23) between be provided with purity of product gas analyzer (22).
3. the gas product output device of high-purity, high compacting gas equipment as claimed in claim 1 or 2, is characterized in that: the counterbalance valve C(23 described) by valve B(24), pressure-reducing valve B(40) be connected with flowmeter (25).
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| CN103894038B true CN103894038B (en) | 2016-02-03 |
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| CN109323122B (en) * | 2018-10-15 | 2021-04-13 | 杭州博大净化设备有限公司 | Efficient nitrogen purification equipment and intermediate collection method thereof |
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| JPH0568836A (en) * | 1991-09-12 | 1993-03-23 | Mitsubishi Heavy Ind Ltd | Method for starting large-sized psa device |
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