Molecular sieve device

Abstract

The utility model provides a molecular sieve device, relates to the technical field of air separation, and solves the problems that an existing molecular sieve device is short in adsorption time, poor in adsorption effect and easy to block a subsequent process. A gas inlet pipe is arranged at the bottom of the adsorption tank, a gas outlet pipe is arranged at the top of the adsorption tank, a partition plate is arranged in the adsorption tank, a molecular sieve cavity is arranged above the partition plate, an activated aluminum oxide cavity is arranged below the partition plate, and a filter screen for preventing powder from entering a subsequent process is arranged at the top in the adsorption tank. A first manhole and a second manhole are symmetrically formed in two side walls of the upper part of the adsorption tank, a third manhole is formed in one side wall of the lower part of the adsorption tank, a saddle plate is connected to the lower part of the outer surface of the adsorption tank, and a support is connected to the outer surface of the saddle plate. The utility model has the beneficial effects that the adsorption capacity and the strength are correspondingly increased, so that the air intake is more uniform, local unevenness and impact cannot be caused, and powder cannot enter the subsequent process.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation, in particular to a molecular sieve device. Background Art

[0002] In the air separation industry, molecular sieve systems are used to remove moisture, carbon dioxide and other hydrocarbons from the air entering the tower. Conventional molecular sieves can only adsorb for 4 hours, and will become powdered after a long period of use, resulting in a weakened adsorption capacity. At the same time, the powder is not brought into the tower, causing corresponding blockage. Utility Model Content

[0003] The utility model aims to solve the problems of the existing molecular sieve device having short adsorption time, poor effect and easy blockage of the subsequent process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A molecular sieve device comprises an adsorption tank, wherein an air inlet pipe is arranged at the bottom of the adsorption tank, and an air outlet pipe is arranged at the top of the adsorption tank, and the characteristic is that a partition plate is arranged inside the adsorption tank, a molecular sieve cavity is arranged above the partition plate, an activated alumina cavity is arranged below the partition plate, a filter screen is arranged at the top of the adsorption tank to prevent powder from entering the subsequent process, a first manhole and a second manhole are symmetrically arranged on both side walls of the upper part of the adsorption tank, a third manhole is arranged on one side wall of the lower part of the adsorption tank, a saddle plate is connected to the lower part of the outer surface of the adsorption tank, and a support is connected to the outer surface of the saddle plate.

[0006] A further improvement is that the adsorption tank comprises a tank body, a left head and a right head, the left head and the tank body are connected by double-sided welding to form a B1 welding portion, and the right head and the tank body are connected by single-sided welding to form a B2 welding portion.

[0007] A further improvement is that the first manhole, the second manhole and the third manhole all include a short tube, a flange and a manhole cover with a handle, each of the short tubes is connected to the adsorption tank by double-sided corner welding to form a D1 welding part, a D2 welding part and a D3 welding part, and each of the flanges is connected to each short tube by double-sided welding to form a B3 welding part, a B4 welding part and a B5 welding part.

[0008] A further improvement is that the adsorption tank is connected to the air outlet pipe and the air inlet pipe by double-sided fillet welding to form a D4 welding portion and a D5 welding portion.

[0009] A further improvement is that: a fixed base and a movable base are connected to the bottom of the support.

[0010] A further improvement is that the bottom of the support is connected to the fixed base and the movable base by single-sided welding to form an E1 welding portion and an E2 welding portion.

[0011] A further improvement is that the saddle plate and the adsorption tank are connected by single-sided welding to form an E3 welding portion, an E4 welding portion, an E5 welding portion, and an E6 welding portion.

[0012] A further improvement is that: the support and the saddle plate are also connected by bolts; and a washer is arranged between the bolts and the outer surface of the support.

[0013] A further improvement is that the filter screen is a stainless steel filter screen.

[0014] A further improvement is that an air intake sealing plate is detachably mounted on the air intake pipe.

[0015] A further improvement is that an air outlet sealing plate is detachably mounted on the air outlet pipe.

[0016] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0017] It is more convenient to supplement and replace more efficient molecular sieve adsorbents to increase their adsorption capacity and strength accordingly. By modifying the support and distribution device at the bottom of the adsorption tank, the air intake is more uniform without causing local unevenness and impact. A filter with a corresponding mesh size is installed on the top of the adsorption tank to prevent powder from entering the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 The utility model Figure 1 BB section structure schematic diagram;

[0021] Figure 3 This utility model Figure 2 Schematic diagram of the lower structure;

[0022] Figure 4 The utility model Figure 1 Enlarged view of middle part I;

[0023] Figure 5 The utility model Figure 1 Enlarged view of middle part II;

[0024] Figure 6The utility model Figure 1 Enlarged view of middle part III;

[0025] Figure 7 It is a schematic diagram of the welding structure of the B1 welding part in the utility model;

[0026] Figure 8 It is a schematic diagram of the welding structure of the B2 welding part in the utility model;

[0027] Fig. 9 It is a schematic diagram of the welding structure of the B3, B4 and B5 welding parts in the utility model;

[0028] Fig.10 It is a schematic diagram of the welding structure of the D1, D2 and D3 welding parts in the utility model;

[0029] Fig.11 It is a schematic diagram of the welding structure of the D4 and D5 welding parts in the utility model;

[0030] Fig.12 It is a schematic diagram of the welding structure of the E1 and E2 welding parts in the utility model;

[0031] Fig.13 It is a schematic diagram of the welding structure of the E3, E4, E5 and E6 welding parts in the utility model.

[0032] Explanation of the accompanying drawings: adsorption tank 1, air outlet pipe 2, air outlet sealing plate 21, air inlet pipe 3, air inlet sealing plate 31, first manhole 4, second manhole 5, third manhole 6, partition plate 7, saddle plate 8, support 9, fixed base 10, movable base 11, bolt 12, gasket 13, filter screen 14, molecular sieve chamber 15, activated alumina chamber 16, welding parts B1, B2, B3, B4, B5, D1, D2, D3, D4, D5, E1, E2, E3, E4, E5, E6. DETAILED DESCRIPTION

[0033] See also Figure 1-Figure 13 As shown, the technical solution adopted in this specific embodiment is: a molecular sieve device, including an adsorption tank 1, an air inlet pipe 3 is arranged at the bottom of the adsorption tank 1, and an air outlet pipe 2 is arranged at the top of the adsorption tank 1, characterized in that: a partition plate 7 is arranged in the adsorption tank 1, a molecular sieve cavity 15 is arranged above the partition plate 7, an activated alumina cavity 16 is arranged below the partition plate 7, a filter screen 14 is arranged at the top of the adsorption tank 1 to prevent powder from entering the subsequent process, a first manhole 4 and a second manhole 5 are symmetrically arranged on both side walls of the upper part of the adsorption tank 1, a third manhole 6 is arranged on one side wall of the lower part of the adsorption tank 1, a saddle plate 8 is connected to the lower part of the outer surface of the adsorption tank 1, and a support 9 is connected to the outer surface of the saddle plate 8.

[0034] The adsorption tank 1 includes a tank body, a left end cap and a right end cap. The left end cap and the tank body are connected by double-sided welding to form a B1 welding portion, and the right end cap and the tank body are connected by single-sided welding to form a B2 welding portion. The groove of the B1 welding portion faces inward, the inner side is submerged arc welded, and the other side is carbon arc gouging followed by submerged arc welding; the groove of the B2 welding portion faces outward.

[0035] The first manhole 4, the second manhole 5 and the third manhole 6 are all composed of a short tube, a flange and a manhole cover with a handle. The short tubes are connected to the adsorption tank 1 by double-sided fillet welding to form D1 welding part, D2 welding part and D3 welding part. The flanges are connected to the short tubes by double-sided welding to form B3 welding part, B4 welding part and B5 welding part. The grooves of the B3 welding part, B4 welding part and B5 welding part face inward.

[0036] The adsorption tank 1 is connected to the air outlet pipe 2 and the air inlet pipe 3 by double-sided fillet welding to form a D4 welding portion and a D5 welding portion.

[0037] The bottom of the support 9 is connected with a fixed base 10 and a movable base 11 .

[0038] The bottom of the support 9 is connected to the fixed base 10 and the movable base 11 by single-sided welding to form an E1 welding portion and an E2 welding portion.

[0039] The saddle plate 8 and the adsorption tank 1 are connected by single-sided welding to form E3 welding part, E4 welding part, E5 welding part and E6 welding part.

[0040] The support 9 and the saddle plate 8 are further connected via bolts 12 ; a washer 13 is provided between the bolts 12 and the outer surface of the support 9 .

[0041] Wherein, the filter screen 14 is a stainless steel filter screen.

[0042] Wherein, an air intake sealing plate 31 is detachably mounted on the air intake pipe 3 .

[0043] Wherein, an air outlet sealing plate 21 is detachably mounted on the air outlet pipe 2 .

[0044] The working principle of the utility model: when in use, by setting a number of individual holes, it is more convenient to supplement and replace more efficient molecular sieve adsorbents, so that its adsorption capacity and strength are increased accordingly. By modifying the support and distribution device at the bottom of the adsorption tank, the air intake is more uniform, and no local unevenness and impact are caused. A filter screen with a corresponding mesh size is installed on the top of the adsorption tank to prevent powder from entering the subsequent process.

[0045] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A molecular sieve device, comprising an adsorption tank, wherein an air inlet pipe is provided at the bottom of the adsorption tank, and an air outlet pipe is provided at the top of the adsorption tank, characterized in that: A partition plate is arranged in the adsorption tank, a molecular sieve cavity is arranged above the partition plate, an activated alumina cavity is arranged below the partition plate, a filter screen is arranged on the top of the adsorption tank to prevent powder from entering the subsequent process, a first manhole and a second manhole are symmetrically arranged on both side walls of the upper part of the adsorption tank, a third manhole is arranged on one side wall of the lower part of the adsorption tank, a saddle plate is connected to the lower part of the outer surface of the adsorption tank, and a support is connected to the outer surface of the saddle plate.

2. A molecular sieve device according to claim 1, characterized in that: The adsorption tank comprises a tank body, a left head and a right head. The left head and the tank body are connected by double-sided welding to form a B1 welding portion, and the right head and the tank body are connected by single-sided welding to form a B2 welding portion.

3. A molecular sieve device according to claim 1, characterized in that: The first manhole, the second manhole and the third manhole all include a short tube, a flange and a manhole cover with a handle. Each of the short tubes is connected to the adsorption tank by double-sided corner welding to form a D1 welding portion, a D2 welding portion and a D3 welding portion. Each of the flanges is connected to each short tube by double-sided welding to form a B3 welding portion, a B4 welding portion and a B5 welding portion.

4. A molecular sieve device according to claim 1, characterized in that: The adsorption tank is connected to the air outlet pipe and the air inlet pipe by double-sided fillet welding to form a D4 welding portion and a D5 welding portion.

5. A molecular sieve device according to claim 1, characterized in that: The bottom of the support is connected with a fixed base and a movable base; the bottom of the support is connected with the fixed base and the movable base by single-sided welding to form an E1 welding part and an E2 welding part.

6. A molecular sieve device according to claim 1, characterized in that: The saddle plate and the adsorption tank are connected by single-sided welding to form an E3 welding portion, an E4 welding portion, an E5 welding portion, and an E6 welding portion.

7. A molecular sieve device according to claim 1, characterized in that: The support and the saddle plate are also connected by bolts; a washer is arranged between the bolts and the outer surface of the support.

8. A molecular sieve device according to claim 1, characterized in that: The filter screen is a stainless steel filter screen.

9. A molecular sieve device according to claim 1, characterized in that: An air inlet sealing plate is detachably mounted on the air inlet pipe, and an air outlet sealing plate is detachably mounted on the air outlet pipe.

Images