CN218421901U - Air dryer for oxygen production - Google Patents
Air dryer for oxygen production Download PDFInfo
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- CN218421901U CN218421901U CN202222662265.0U CN202222662265U CN218421901U CN 218421901 U CN218421901 U CN 218421901U CN 202222662265 U CN202222662265 U CN 202222662265U CN 218421901 U CN218421901 U CN 218421901U
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Abstract
The utility model discloses an air dryer for oxygen generation, which comprises a base, wherein a refrigeration part, a drying part, an air storage tank, a control cabinet and an oxygen generator are arranged on the base; the refrigeration part comprises an air condenser, a drying filter and a cooling dryer, and an air inlet is arranged on a front end pipeline; the drying part comprises a drying adsorption cylinder A and a drying adsorption cylinder B, and a T-shaped valve, a check valve and a silencer are arranged on a connecting pipeline of the drying adsorption cylinder A and the drying adsorption cylinder B; the dry part rear end is connected the gas holder, the gas holder rear end is connected the oxygenerator, the oxygenerator includes the molecular sieve adsorption tower, the molecular sieve adsorption tower passes through the product gas pipeline and connects oxygen storage jar, oxygen storage jar top is equipped with the oxygen export. The utility model has the characteristics of compact structure, air drying are efficient, the filtration purification is effectual and the installation is removed conveniently etc, can extensively be used for pressure swing adsorption air separation equipment technical field.
Description
Technical Field
The utility model belongs to the technical field of air dryer for air separation plant, concretely relates to air dryer for system oxygen.
Background
In the operation of an oxygen or nitrogen production air separation plant, a stable and dry air source is often required to be provided by an adsorption dryer. Generally, an adsorption dryer is also called an air dryer and refers to equipment used for obtaining dry compressed air in an oxygen or nitrogen production process, a common air dryer uses pressure swing adsorption, namely, the temperature is constant, an adsorbent adsorbs water vapor in the compressed air during pressurization, the adsorption capacity of the adsorbent is reduced during decompression, moisture attached to the adsorbent is removed, two adsorption towers are usually used, a mechanical and electrical device is arranged to control the two adsorption towers to circularly and alternately perform adsorption and desorption under high and low pressures, the dryness of the compressed air treated by the adsorption dryer can reach a pressure dew point of minus 40 ℃ to minus 70 ℃, and the air dryer is widely applied to air separation equipment for oxygen or nitrogen production.
At present, most of the existing air dryers adopt independent arrangement, and only have the function of drying air, and do not have corresponding structural function arrangement for backflow control, filtration and purification, supply continuity and the like of dried air. An adsorption dryer for oxygen production is introduced as patent application number "202122488193.8", including base, adsorption tower, control box and connecting tube, has convenient operation, can prevent muffler and pipe blockage, thereby the muffler loading and unloading of being convenient for simultaneously, and thereby the advantage of being convenient for muffler clearance improvement drying efficiency. Still like patent application number "201922366289.X" discloses an adsorption dryer for PSA system oxygen, including bottom plate, fixed block, support column, bracing piece, desiccator, sealed protection PDA material stoving storage box structure is favorable to discharging and collecting steam. The drying machines introduced in the above patents are all independent structures, and are structurally improved from the noise reduction effect and the hot gas recovery and discharge, but for the existing oxygen or nitrogen production air separation plant, how to obtain dry, clean and continuously and stably supplied compressed air is the key for preparing continuously and stably high-purity oxygen or nitrogen; and with the wide application of the oxygen-making or nitrogen-making air separation equipment, the integrated structure has wider market prospect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide an air dryer for making oxygen, have compact structure, air drying efficient, filter purification is effectual and the installation removes characteristics such as convenient, can extensively be used for the pressure swing adsorption air separation equipment technical field.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an air dryer for oxygen generation comprises a base, wherein a refrigeration part, a drying part, a gas storage tank, a control cabinet and an oxygen generator are arranged on the base; the refrigeration part comprises an air condenser, a drying filter and a cooling dryer, and an air inlet is arranged on a front end pipeline; the drying part comprises a drying adsorption cylinder A and a drying adsorption cylinder B, and a T-shaped valve, a check valve and a silencer are arranged on a connecting pipeline of the drying adsorption cylinder A and the drying adsorption cylinder B; the drying part rear end is connected the gas holder, the gas holder rear end is connected the oxygenerator, the oxygenerator includes the molecular sieve adsorption tower, the molecular sieve adsorption tower is through producing the gas pipeline and connecting oxygen storage jar, oxygen storage jar top is equipped with the oxygen export.
As an improvement, a safety pressure relief valve is arranged at the top of the gas storage tank.
As an improvement, an A-grade precision filter is arranged on a pipeline between the air storage tank and the drying part.
As an improvement, the drying filter comprises two precision filters which are arranged side by side, and a C-grade precision filter and a T-grade precision filter are respectively arranged in front and at the back of the drying filter.
As an improvement, the control cabinet is positioned on the support frame between the drying adsorption cylinder A and the drying adsorption cylinder B.
As an improvement, the drying and adsorbing cylinder A and the drying and adsorbing cylinder B adopt a small-diameter long cylinder structure with the diameter less than or equal to 120mm, and a sewage discharge outlet is formed in the bottom of the drying and adsorbing cylinder A and the drying and adsorbing cylinder B.
As an improvement, an oxygen flow detector is arranged on the gas production pipeline.
As an improvement, the tail end of the gas production pipeline is provided with a vent outlet.
As an improvement, two fork foot holes are formed in the side face of the base along the length direction, and the fork foot holes are of a square structure.
As an improvement, the top of the molecular sieve adsorption tower adopts a flange connection structure, and the top of the molecular sieve adsorption tower is provided with an automatic molecular sieve compressing device controlled by an air cylinder.
The utility model discloses the beneficial effect who gains does: an air dryer for oxygen generation has the characteristics of compact structure, high air drying efficiency, good filtering and purifying effects, convenience in installation and movement and the like, and a refrigeration part, a drying part, an air storage tank, a control cabinet and an oxygen generator are intensively arranged on a base, and two sides of a drying adsorption tower with two small-diameter long cylindrical structures are symmetrically arranged, so that the structural layout of the dryer is optimized, and the whole oxygen generation device is simpler and more compact in structure; the multistage filter is arranged on the connecting pipeline, so that the air purification effect is effectively improved, and the purity of the oxygen prepared by the oxygen generator is improved; the automatic molecular sieve compacting device is arranged at the top of the molecular sieve adsorption tower, so that the problem that the molecular sieve is easy to pulverize due to overlarge gaps is solved, and manual operation is omitted; in addition, through set up fork foot hole on base length direction, make things convenient for fork truck to insert the removal, guarantee simultaneously that the removal in-process focus is more stable.
Drawings
FIG. 1 is a front view of the air dryer for oxygen generation of the present invention;
figure 2 is a side view of the air dryer for oxygen generation of the present invention.
In the figure: 1. the device comprises a base, 2, a gas storage tank, 3, a control cabinet, 4, a wind condenser, 5, a drying filter, 6, a cooling dryer, 7, a gas inlet, 8, a drying adsorption cylinder A,9, a drying adsorption cylinder B,10, a T-shaped valve, 11, a check valve, 12, a silencer, 13, a molecular sieve adsorption tower, 14, a gas production pipeline, 15, an oxygen storage tank, 16, an oxygen outlet, 17, a safety relief valve, 18, an A-level precision filter, 19, a support frame, 20, a sewage discharge outlet, 21, an oxygen flow detector, 22, an emptying outlet, 23, a fork foot hole, 24 and an automatic molecular sieve compressing device.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 2, the air dryer for oxygen generation of this embodiment includes a base 1, and a refrigeration component, a drying component, an air storage tank 2, a control cabinet 3, and an oxygen generator are disposed on the base 1; the refrigerating part comprises an air condenser 4, a drying filter 5 and a cooling dryer 6, and an air inlet 7 is arranged on a front end pipeline; the drying part comprises a drying adsorption cylinder A8 and a drying adsorption cylinder B9, and a T-shaped valve 10, a check valve 11 and a silencer 12 are arranged on a connecting pipeline of the drying adsorption cylinder A8 and the drying adsorption cylinder B8; the drying part rear end is connected gas holder 2, 2 rear ends of gas holder are connected the oxygenerator, the oxygenerator includes molecular sieve adsorption tower 13, molecular sieve adsorption tower 13 passes through gas production pipeline 14 and connects oxygen storage jar 15, oxygen storage jar 15 top is equipped with oxygen export 16.
Further, a safety pressure relief valve 17 is arranged at the top of the air storage tank 2; specifically, the safety pressure relief valve 17 has a safety pressure relief value of 0.85MPa and an explosion-proof structure.
Further, a grade-A precision filter 18 is arranged on a pipeline between the air storage tank 2 and the drying part; specifically, a sewage draining outlet is arranged at the bottom of the A-level precision filter 18.
Further, the drying filter 5 comprises two precision filters which are arranged side by side, and a C-grade precision filter and a T-grade precision filter are respectively arranged in front and at the back of the drying filter; specifically, drain outlets are formed in the bottoms of the C-level precision filter and the T-level precision filter.
Furthermore, the control cabinet 3 is positioned on the support frame 19 between the drying adsorption cylinder A8 and the drying adsorption cylinder B9, and the control cabinet 3 is arranged on a vacant position between the drying adsorption cylinders, so that the base area is saved, and the operation and the instrument data checking are convenient; specifically, the drying and adsorbing cylinder A8 and the drying and adsorbing cylinder B9 are of a small-diameter long cylinder structure with the diameter being less than or equal to 120mm, the diameter is preferably 105 to 110mm, and a sewage discharge outlet 20 is formed in the bottom of the drying and adsorbing cylinder, so that impurities and sewage in the adsorbing cylinder can be conveniently discharged.
Further, an oxygen flow detector 21 is arranged on the gas production pipeline 14 so as to control the flow of the oxygen intake; specifically, a vent outlet 22 is further provided at the end of the gas production pipeline 14, and when the oxygen purity is not satisfactory, venting can be performed through the vent outlet 22.
Further, base 1 is equipped with two fork foot holes 23 along length direction's side, just fork foot hole 23 is square structure to make things convenient for fork truck to insert, the installation of the device of being convenient for removes.
Furthermore, the top of the molecular sieve adsorption tower 13 adopts a flange connection structure, and the top is provided with an automatic molecular sieve pressing device 24 controlled by an air cylinder, so that the problem that the molecular sieve is easy to pulverize due to overlarge gap can be prevented, and manual operation is omitted.
The air dryer for oxygen generation has the characteristics of compact structure, high air drying efficiency, good filtering and purifying effect, convenient installation and movement and the like; the specific process flow is as follows: after entering the air condenser 4 from a flange connection pipe, the pressurized air from an air compressor enters the cooling dryer 6 through the drying filter 5 (including two-stage filtration of a C-stage precision filter and a T-stage precision filter) for heat exchange, and the working principle of the cooling dryer 6 is that the compressed air is cooled to a certain dew point temperature by heat exchange cooling according to the corresponding relation between the saturated vapor pressure and the temperature of water, so that partial water is separated out; the primarily dried compressed gas passes through the T-shaped valve 10 and the check valve 11 and enters a drying adsorption cylinder A8 or a drying adsorption cylinder B9 which is provided with a 13X molecular sieve, at the moment, the compressed gas flows through a bed layer of the adsorbent drying cylinder from bottom to top, water vapor in the compressed air is transferred to the surface of the adsorbent at low temperature and high pressure, namely, the adsorbent absorbs moisture in the air until the moisture is balanced, so that the compressed gas is further and fully dried; then the compressed gas is further filtered and dedusted through an A-stage precision filter 18 and an activated carbon filter, enters the gas storage tank 2, is output to the oxygen generator through a pipe flange, is adsorbed by the molecular sieve adsorption tower 13 to obtain high-purity oxygen, is conveyed to the oxygen storage tank 15 through the gas production pipeline 14, and is finally input to an oxygen utilization terminal through the oxygen outlet 16.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. An air dryer for oxygen generation comprises a base (1), and is characterized in that a refrigeration part, a drying part, an air storage tank (2), a control cabinet (3) and an oxygen generator are arranged on the base (1); the refrigeration part comprises an air condenser (4), a drying filter (5) and a cooling dryer (6), and an air inlet (7) is arranged on a front end pipeline; the drying part comprises a drying adsorption cylinder A (8) and a drying adsorption cylinder B (9), and a T-shaped valve (10), a check valve (11) and a silencer (12) are arranged on a connecting pipeline of the drying adsorption cylinder A (8) and the drying adsorption cylinder B (9); dry part rear end is connected gas holder (2), gas holder (2) rear end is connected the oxygenerator, the oxygenerator includes molecular sieve adsorption tower (13), oxygen storage jar (15) is connected through product pipeline (14) in molecular sieve adsorption tower (13), oxygen storage jar (15) top is equipped with oxygen outlet (16).
2. Air dryer for oxygen production according to claim 1, characterized in that the top of the storage tank (2) is provided with a safety relief valve (17).
3. Air dryer for oxygen production according to claim 2, characterized in that a class a fine filter (18) is provided on the piping between the air tank (2) and the drying means.
4. Air dryer for oxygen production according to claim 1, characterized in that the drying filter (5) comprises two side by side polishing filters, respectively of class C and T.
5. Air dryer for oxygen production according to claim 1, characterized in that the control cabinet (3) is located on a support frame (19) between the drying adsorption cylinder a (8) and the drying adsorption cylinder B (9).
6. The air dryer for oxygen production according to claim 5, wherein the drying adsorption cylinder A (8) and the drying adsorption cylinder B (9) are in a small-diameter long cylinder structure with a diameter less than or equal to 120mm, and a blowdown outlet (20) is arranged at the bottom.
7. Air dryer for oxygen production according to claim 1, wherein the gas production line (14) is provided with an oxygen flow detector (21).
8. Air dryer for oxygen production according to claim 7, characterized in that the gas production line (14) ends with a vent outlet (22).
9. The air dryer for oxygen generation according to claim 1, wherein the base (1) is provided with two fork leg holes (23) along the side of the length direction, and the fork leg holes (23) have a square structure.
10. The air dryer for oxygen production according to claim 1, wherein the top of the molecular sieve adsorption tower (13) is in a flange connection structure, and a cylinder controlled molecular sieve automatic compacting device (24) is arranged at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222662265.0U CN218421901U (en) | 2022-10-10 | 2022-10-10 | Air dryer for oxygen production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222662265.0U CN218421901U (en) | 2022-10-10 | 2022-10-10 | Air dryer for oxygen production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218421901U true CN218421901U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222662265.0U Active CN218421901U (en) | 2022-10-10 | 2022-10-10 | Air dryer for oxygen production |
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| Country | Link |
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| CN (1) | CN218421901U (en) |
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2022
- 2022-10-10 CN CN202222662265.0U patent/CN218421901U/en active Active
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