Low-temperature adsorption device with sealable and detachable adsorbent chamber

Abstract

The low-temperature adsorption device comprises an adsorption chamber shell and the adsorbent chamber which are connected in a sleeved mode, the adsorbent chamber extends into the adsorption chamber shell, the top of the adsorbent chamber is connected with the top of the adsorption chamber shell, the adsorbent chamber comprises an upper cover, a lower cover and a cylinder, and the cylinder is a thin-wall porous round pipe; one end of the film is connected with the lower cover, the other end of the film is sleeved with a pressing ring, and the pressing ring can move along the cylinder and can be clamped with the upper cover; the upper cover is detachably connected with the top of the adsorption chamber shell; according to the low-temperature adsorption device with the sealable and detachable adsorbent chamber provided by the utility model, the detachable adsorption chamber shell and the adsorbent chamber are adopted, the adsorbent chamber can be integrally drawn out, the adsorbent is more convenient to fill and replace, and the thin film is arranged on the outer side of the cylinder, so that the adsorbent is activated and filled to be in a sealed state; and the sealing can be removed after the interlayer vacuum is established, so that the adsorbent can be put into use in a better initial state.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature container technical field, concretely relates to a kind of low temperature adsorption device with sealable, detachable adsorbent chamber. BACKGROUND

[0002] In the double-layer structure high vacuum insulation tank body, to cut off the convection heat transfer, interlayer needs to be evacuated and maintain higher vacuum degree in a certain period. Because the inner container and shell of tank body exist certain leak rate, the material on the surface of interlayer can also continuously release residual gas adsorbed therein, adsorption device needs to be arranged in interlayer, and a certain amount of molecular sieve is filled in the adsorption device for adsorbing the gas entering interlayer. To improve the adsorption effect, the adsorption device should be in low temperature environment on the side of inner container, the area generated by the placement and distribution of molecular sieve and contacting with interlayer vacuum should be as large as possible, and the molecular sieve should be activated to obtain better adsorption capacity and maintain as long as possible before vacuum is established. After a vacuum service life of container, the adsorption capacity of filled molecular sieve can be saturated, and the molecular sieve needs to be replaced during maintenance, and the structure and process of adsorption device should ensure that the replacement operation is smoothly completed.

[0003] The existing low temperature adsorption device is arranged on the inner container, and the setting position can utilize the low temperature of medium, but each has advantages and disadvantages in adsorption area, adsorption capacity maintenance and whether it is convenient to replace adsorbent.

[0004] A certain prior art lays the adsorption device on the outer surface of a section of cylinder of inner container, which has the advantages of large adsorption area, but has the disadvantages of occupying the space of heat insulation winding layer, and the cavity for containing adsorbent has complex shape, so multiple filling ports need to be opened to ensure the filling rate when filling adsorbent, and it is also very difficult to replace.

[0005] A certain prior art utilizes the inner recess space formed at process manhole of inner container to contain adsorbent, and a porous plate is used to cover the adsorbent, and the filling port is also opened on the porous plate, which has the advantages of simple manufacturing and easy filling, but has the disadvantages of small adsorption area and inconvenient replacement of adsorbent.

[0006] A certain prior art has a double-layer tube with closed bottom end as adsorption device, the inner tube wall is porous, the tube opening is welded to the top of inner container, the tube bottom is inserted into the bottom of inner container, and the adsorbent is located in the double-layer tube interlayer. It has the advantages of large adsorption area, simple manufacturing and easy filling, but has the disadvantage that the tank body needs to be turned over to replace the adsorbent, and the operation is also not convenient.

[0007] The above prior art also has a common shortcoming, that is, the problem of adsorption capacity maintenance. The molecular sieve particles have a microporous structure, and are nearly saturated in adsorption state when stored in the atmosphere. Therefore, the adsorption capacity must be restored by activation treatment before loading. However, according to the manufacturing process of the high-vacuum thermal insulation container, the interlayer vacuum is not established when the molecular sieve is loaded. Even if the vacuum is immediately started, a large amount of gas is adsorbed in the process of reaching the specified sealing vacuum degree, and the adsorption capacity is greatly lost.

[0008] In order to solve the problem of adsorption capacity maintenance, one prior art seals the molecular sieve after loading into the chamber of the adsorption device, so that the molecular sieve does not contact the atmosphere. A burstable sealing film and a pipeline connecting the chamber to the outside of the interlayer are arranged at the sealing position. After the interlayer vacuum is established, the pipeline pressurizes the chamber through the pipeline, the sealing film is burst, and the chamber is sealed when the pressure at the pipeline opening is stopped. Thereafter, the chamber of the adsorption device is connected to the interlayer, and the adsorbent starts to work in an optimal state.

[0009] The above prior art has the following shortcomings. The adsorption area cannot be large due to the size of the sealing film installation position. When the sealing film is burst, a certain amount of gas enters the adsorbent chamber and the interlayer of the tank body, which reduces the interlayer vacuum degree and the adsorbent capacity. In addition, the loading and replacement of the adsorbent can only be performed through the installation opening of the sealing film, and the operation is not convenient. SUMMARY

[0010] In view of the shortcomings of the prior art, the purpose of the present application is to provide a low-temperature adsorption device with a sealable and detachable adsorbent chamber, which solves the problems of poor adsorption capacity maintenance performance and difficulty in replacement of the prior art.

[0011] In order to solve the above technical problems, the present application adopts the following technical solutions: a low-temperature adsorption device with a sealable and detachable adsorbent chamber, comprising a sleeved adsorption chamber shell and an adsorbent chamber, wherein the adsorbent chamber extends into the adsorption chamber shell and is connected to the top of the adsorption chamber shell.

[0012] The adsorbent chamber comprises an upper cover, a lower cover, and a cylinder installed between the upper cover and the lower cover, wherein the cylinder is a thin-walled porous pipe.

[0013] The adsorbent chamber further comprises a film installed on the outer side of the cylinder, one end of the film is connected to the lower cover, the other end of the film is sleeved with a compression ring on the outer side, the compression ring can move along the cylinder, and can be clamped with the upper cover.

[0014] The upper cover is detachably connected to the top of the adsorption chamber shell.

[0015] The present application also has the following technical features:

[0016] The upper cover is generally disc-shaped, comprising a disc-shaped upper cover body and an upper cover through hole formed in the center of the upper cover body.

[0017] The upper cover further comprises a clamping device installation slot formed in the upper surface of the upper cover body, which is radially arranged from the upper cover through hole to the edge of the upper cover body.

[0018] The upper cover further comprises a sealing tenon formed in the lower surface of the upper cover body and an upper inner cylinder connecting ring.

[0019] The sealing tenon is annular, the upper inner cylinder connecting ring is installed at the edge of the upper cover through hole, and the sealing tenon is installed between the upper inner cylinder connecting ring and the edge of the upper cover body.

[0020] The lower cover is generally disc-shaped, comprising a disc-shaped lower cover body and a lower cover through hole formed in the center of the lower cover body.

[0021] The lower cover further comprises a lower inner cylinder connecting ring and a cylindrical connecting ring installed on the upper surface of the lower cover body, a cylindrical cylinder connected with the cylindrical connecting ring, and the inner cylinder connecting ring installed at the edge of the lower cover through hole.

[0022] The lower cover further comprises a clamp groove installed on the outer side surface of the lower cover body, and the film is connected with the clamp groove through a lower clamp.

[0023] The upper cover body further comprises an installation hole formed therein.

[0024] The upper cover body further comprises a ventilation hole formed therein.

[0025] The adsorbent chamber further comprises an inner cylinder coaxially installed in the cylindrical cylinder, wherein the bottom end of the inner cylinder is connected with the lower inner cylinder connecting ring, and the top end of the inner cylinder is connected with the upper inner cylinder connecting ring.

[0026] The upper cover further comprises a filling port formed in the upper cover body, wherein a filling port cover is installed on the filling port, and the position of the filling port corresponds to the cavity between the inner cylinder and the cylindrical cylinder.

[0027] The compression ring comprises a ring-shaped compression ring body, a sealing groove formed in the upper surface of the compression ring body, and a clamping groove formed in the outer side surface of the compression ring body.

[0028] The film is connected with the clamping groove through an upper clamp.

[0029] A sealing ring is arranged in the sealing groove, and the sealing ring cooperates with the sealing tenon.

[0030] A clamping device is further installed on the upper cover.

[0031] The clamping device comprises a middle cavity and a sleeve installed around the middle cavity, a push rod is sleeved in the sleeve, and one end of the push rod extends out of the sleeve away from the middle cavity.

[0032] The clamping device further comprises a rubber membrane plate, one end of the rubber membrane plate is open and sleeved at one end of the sleeve connected to the middle cavity, and the other end extends into the sleeve and contacts the end of the push rod.

[0033] The clamping device further comprises a connecting pipe connected to the middle cavity, and the connecting pipe is communicated with the middle cavity.

[0034] The clamping device further comprises a sliding block installed in a clamping device installation slot, one end of the push rod extending out of the sleeve is connected to the sliding block, and the sliding block is matched with a pressing ring.

[0035] The clamping device installation slot comprises a sleeve installation slot and a sliding block installation slot.

[0036] The sleeve installation slot is connected to an upper cover through hole and the sliding block installation slot, and the sliding block installation slot is connected to the sleeve installation slot and the outer edge of an upper cover body.

[0037] The sliding block installation slot penetrates through the upper and lower surfaces of the upper cover body, and the sliding block is installed in the sliding block installation slot and can move along the sliding block installation slot.

[0038] The sliding block comprises a contact section, a fixed section and a clamping section connected in sequence from top to bottom.

[0039] One end of the contact section is connected to one end of the push rod extending out of the sleeve, and the bottom surface of the contact section is connected to the fixed section.

[0040] The fixed section is installed in the sliding block installation slot, and the bottom surface is connected to the clamping section.

[0041] The clamping section is in an L shape, and a protruding part faces the direction of the upper cover through hole, and the protruding part is matched with a clamping groove.

[0042] The contact section is in a cuboid shape as a whole.

[0043] The interface between the contact section and the sliding block installation slot is in a trapezoidal shape.

[0044] The adsorption chamber shell is in a closed cylindrical shape as a whole, comprises a connecting flange, a shell cylindrical pipe and a pipe cap connected coaxially in sequence, further comprises a center column installed on the side of the pipe cap facing the connecting flange, and the center column is coaxial with the shell cylindrical pipe.

[0045] A threaded hole is formed on the connecting flange and is screwed with the upper cover.

[0046] The center column extends into the inner cylinder.

[0047] The sleeve is mounted on the upper cover body by a pipe clamp.

[0048] Compared with the prior art, the utility model has the following technical effects:

[0049] (I) The low-temperature adsorption device with a sealable and detachable adsorbent chamber provided by the utility model adopts a detachable adsorption chamber shell and adsorbent chamber, the adsorbent chamber can be extracted as a whole, and the adsorbent is more convenient to load and replace, and the thin film is installed on the outer side of the cylinder, so that the adsorbent is activated and loaded in a sealed state, and the seal can be released after the interlayer vacuum is established, so that the adsorbent can be put into use in a better initial state.

[0050] (II) The low-temperature adsorption device with a sealable and detachable adsorbent chamber provided by the utility model adopts a thin-walled porous circular tube, so that the contact area of the adsorbent chamber and the vacuum interlayer is large, and adsorption can be improved.

[0051] (III) The low-temperature adsorption device with a sealable and detachable adsorbent chamber provided by the utility model, the seal of the adsorbent chamber is realized by the bag-shaped film of the outer cover and the compression of the bag opening by the compression ring, and the release of the sealed state is realized by the push rod pushing the slider so that the compression ring is no longer compressed and sealed, the principle and structure are simple, and the mechanism action is reliable.

[0052] (IV) The low-temperature adsorption device with a sealable and detachable adsorbent chamber provided by the utility model adopts the rubber film plate driving push rod mode, the middle cavity is isolated from the interlayer vacuum and the adsorbent chamber, no additional gas enters the interlayer, and no adverse effects are caused on the interlayer vacuum degree and the adsorbent capacity.

[0053] (V) The low-temperature adsorption device with a sealable and detachable adsorbent chamber provided by the utility model has the advantages of simple structure, convenient operation, safety and reliability, and strong adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is a general structure schematic view of the low-temperature adsorption device with a sealable and detachable adsorbent chamber of the utility model.

[0055] Figure 2 It is an external structure schematic view of the adsorbent chamber of the utility model.

[0056] Figure 3 It is an external structure schematic view of the adsorption chamber shell of the utility model.

[0057] Figure 4 It is a sectional structure schematic view of the adsorbent chamber of the utility model.

[0058] Figure 5It is the sectional structure schematic view of the adsorption chamber shell of the utility model.

[0059] Figure 6 It is the structure schematic view of the upper cover of the utility model.

[0060] Figure 7 It is the structure schematic view of the clamping device of the utility model.

[0061] Figure 8 It is the structure schematic view of the sliding block of the utility model.

[0062] Figure 9 It is the replacement structure schematic view of the clamping device of the utility model.

[0063] Fig. 10 (a) is the working state schematic view of the utility model Figure I .

[0064] Fig. 10 (b) is the working state schematic view of the utility model Figure II .

[0065] Meaning of each reference sign in the drawing:

[0066] 1-adsorption chamber shell, 2-adsorbent chamber, 3-clamping device, 4-tube clamp.

[0067] 1-1 connecting flange, 1-2 shell round tube, 1-3 pipe cap, 1-4 center column.

[0068] 2-1-upper cover, 2-2-lower cover, 2-3-cylinder, 2-4-film, 2-5-pressing ring, 2-6-inner cylinder, 2-7-filling port cover, 2-8-upper clamp, 2-9-sealing ring.

[0069] 3-1-intermediate cavity, 3-2-sleeve, 3-3-push rod, 3-4-rubber membrane plate, 3-5-connection pipe, 3-6-sliding block.

[0070] 2-1-1-upper cover body, 2-1-2-upper cover through hole, 2-1-3-clamping device installation groove, 2-1-4-sealing tenon, 2-1-5-upper inner cylinder connecting ring, 2-1-6 installation hole, 2-1-7 vent hole.

[0071] 2-2-1-lower cover body, 2-2-2-lower cover through hole, 2-2-3-lower inner cylinder connecting ring, 2-2-4-cylinder connecting ring, 2-2-5-lower clamp.

[0072] 2-5-1-pressing ring body, 2-5-2-sealing groove, 2-5-3-clamping groove.

[0073] 3-6-1-contact section, 3-6-2-fixed section, 3-6-3-clamping section.

[0074] 2-1-3-1-sleeve installation slot, 2-1-3-2-sliding block installation slot.

[0075] The specific content of the utility model is further explained and described in detail in combination with the embodiments below. DETAILED DESCRIPTION

[0076] All components in the utility model, if not specially stated, all adopt the components known in the prior art.

[0077] The specific embodiments of the utility model are given below, and it should be noted that the utility model is not limited to the following specific embodiments, and any equivalent transformation made on the basis of the technical solutions of the application falls within the protection scope of the utility model.

[0078] Embodiment 1:

[0079] The embodiment gives a kind of low temperature adsorption device with sealable and detachable adsorbent chamber, as shown in 1-, including sleeve adsorption chamber shell 1 and adsorbent chamber 2, the adsorbent chamber 2 is inserted into adsorption chamber shell 1 And top and adsorption chamber shell 1 top connection. Figure 3

[0080] The adsorbent chamber 2 includes upper cover 2-1, lower cover 2-2 and cylinder 2-3 installed between upper cover 2-1 and lower cover 2-2, and the cylinder 2-3 is a thin-walled porous pipe.

[0081] The adsorbent chamber 2 further includes a film 2-4 installed on the outer side of the cylinder 2-3, one end of the film 2-4 is connected with the lower cover 2-2, the other end of the film 2-4 is sleeved with a compression ring 2-5 on the outer side, the compression ring 2-5 can move along the cylinder 2-3, and can be clamped with the upper cover 2-1.

[0082] The upper cover 2-1 is detachably connected with the top of the adsorption chamber shell 1.

[0083] The adsorption chamber shell 1 is a bottom closed pipe, the top of the adsorption chamber shell 1 is welded to the top of the inner container, and the bottom of the adsorption chamber shell 1 is inserted into the bottom of the inner container. The adsorbent chamber 2 is located in the center of the adsorption chamber shell 1 and can be pulled out as a whole.

[0084] The cylinder 2-3 is covered with the film 2-4, and the film 2-4 is sealed at the opening of the upper part with the compression ring 2-5. The compression ring 2-5 can be clamped with the upper cover 2-1 and can be separated, to release the compression state, and to fall down with the film 2-4 by gravity, to expose the adsorption surface of the adsorbent chamber, i.e. the cylinder 2-3.

[0085] ​The adsorbent chamber 2 can be extracted integrally, the adsorbent is convenient to replace, the film is installed on the outer side of the cylinder, the adsorbent is activated and packed in sealing, the sealing can be released after the interlayer vacuum is established, and the adsorbent can be used in a better initial state.

[0086] In the embodiment, if the adsorbent chamber 2 needs to be further lengthened due to structural requirements, the cylinder 2-3 can be provided with a grid framework on the inner side of the cylinder 2-3 due to insufficient rigidity affecting the guide post function.

[0087] As a preferred embodiment of the present application:

[0088] As shown in Figure 6 The upper cover 2-1 is generally disc-shaped, comprising a disc-shaped upper cover body 2-1-1 and an upper cover through hole 2-1-2 formed in the center of the upper cover body 2-1-1.

[0089] The upper cover 2-1 further comprises a clamping device mounting groove 2-1-3 formed on the upper surface of the upper cover body 2-1-1, and the clamping device mounting groove 2-1-3 is arranged radially from the upper cover through hole 2-1-2 to the edge of the upper cover body 2-1-1.

[0090] The upper cover 2-1 further comprises a sealing tenon 2-1-4 formed on the lower surface of the upper cover body 2-1-1 and an upper inner cylinder connecting ring 2-1-5.

[0091] The sealing tenon 2-1-4 is annular, the upper inner cylinder connecting ring 2-1-5 is installed on the edge of the upper cover through hole 2-1-2, and the sealing tenon 2-1-4 is installed between the upper inner cylinder connecting ring 2-1-5 and the edge of the upper cover body 2-1-1.

[0092] As shown in Figure 4 The lower cover 2-2 is generally disc-shaped, comprising a disc-shaped lower cover body 2-2-1 and a lower cover through hole 2-2-2 formed in the center of the lower cover body 2-2-1.

[0093] The lower cover 2-2 further comprises a lower inner cylinder connecting ring 2-2-3 and a cylinder connecting ring 2-2-4 installed on the upper surface of the lower cover body 2-2-1, the cylinder 2-3 is connected with the cylinder connecting ring 2-2-4, and the lower inner cylinder connecting ring 2-2-3 is installed on the edge of the lower cover through hole 2-2-2.

[0094] The lower cover 2-2 further comprises a clamp groove installed on the outer side of the lower cover body 2-2-1, and the film 2-4 is connected with the clamp groove through the lower clamp 2-2-5.

[0095] The upper cover body 2-1-1 is further provided with a mounting hole 2-1-6 for connecting with the adsorbent chamber shell 1.

[0096] Vent holes 2-1-7 are arranged on the upper cover body 2-1-1, which are four arc-shaped long circular holes, and are used to communicate the adsorption surface of the adsorbent chamber 2 with the interlayer of the can body.

[0097] As a preferred embodiment of the present application:

[0098] As shown in Figure 2 and Figure 4 , the adsorbent chamber 2 further comprises an inner cylinder 2-6 coaxially installed in the cylinder 2-3, the bottom end of the inner cylinder 2-6 is connected with the lower inner cylinder connecting ring 2-2-3, and the top end is connected with the upper inner cylinder connecting ring 2-1-5.

[0099] The upper cover 2-1 further comprises a filling port arranged on the upper cover body 2-1-1, the filling port is provided with a filling port cover 2-7, and the position of the filling port corresponds to the cavity between the inner cylinder 2-6 and the cylinder 2-3.

[0100] The inner tube 2 is used to maintain the shape of the chamber and ensure installation and positioning, the cylinder 2-3 is a thin-walled porous circular tube, which is used to form the adsorption surface and as a guide column when the compression ring 2-5 falls. The film 2-4 is used to temporarily shield the adsorption surface, and can be removed to expose the adsorption surface when needed.

[0101] As a preferred embodiment of the present application:

[0102] As shown in Figure 4 and FIG. 10, the compression ring 2-5 comprises a ring-shaped compression ring body 2-5-1, a sealing groove 2-5-2 arranged on the upper surface of the compression ring body 2-5-1, and a clamping groove 2-5-3 arranged on the outer surface of the compression ring body 2-5-1.

[0103] The film 2-4 is connected with the clamping groove 2-5-3 through the upper clamp 2-8.

[0104] A sealing ring 2-9 is arranged in the sealing groove 2-5-2, and the sealing ring 2-9 cooperates with the sealing tenon 2-1-4.

[0105] As a preferred embodiment of the present application:

[0106] As shown in Figure 7 , the upper cover 2-1 is further provided with a clamping device 3.

[0107] The clamping device 3 comprises a middle cavity 3-1 and a sleeve 3-2 installed around the middle cavity 3-1, a push rod 3-3 is sleeved in the sleeve 3-2, and the end of the push rod 3-3 extending out of the sleeve 3-2 is away from the middle cavity 3-1.

[0108] The clamping device 3 further comprises a rubber diaphragm 3-4, one end of which is open and sleeved at one end of the connecting sleeve 3-2 of the middle cavity 3-1, and the other end extends into the sleeve 3-2 and is in contact with the end of the push rod 3-3.

[0109] The clamping device 3 further comprises a connecting pipe 3-5 connected to the middle cavity 3-1, and the connecting pipe 3-5 communicates with the middle cavity 3-1.

[0110] The clamping device 3 further comprises a sliding block 3-6 installed in the clamping device installation groove 2-1-3, one end of the push rod 3-3 extending out of the sleeve 3-2 is connected with the sliding block 3-6, and the sliding block 3-6 is matched with the pressing ring 2-5.

[0111] One end of the connecting pipe 3-5 is welded with the middle cavity 3-1, and the other end penetrates the tank shell to the interlayer outside.

[0112] In the utility model, the clamping device 3 adopts a pneumatic mechanism, and the push rod 3-3 is driven by the rubber diaphragm 3-4, the middle cavity 3-1 itself is isolated from the interlayer vacuum and the adsorbent chamber, and the entry of excess air is avoided.

[0113] The open end of the sleeve 3-2 is a cylindrical internal thread, and two planes are machined on the outer cylindrical surface for clamping by a tightening tool.

[0114] The middle cavity 3-1 is provided with a corresponding cylindrical external thread, and the thread pair surface should be smeared with vacuum sealing glue when being screwed.

[0115] After the rubber diaphragm 3-4 is installed in place, air tightness check should be carried out to ensure that it can reach the predetermined stroke under the specified pressure.

[0116] The connection of the sleeve 3-2 and the middle cavity 3-1, the connection of the connecting pipe 3-5 and the middle cavity 3-1, and the connection of the connecting pipe 3-5 and the tank shell are all subjected to helium mass spectrum leak detection, and the index should not be lower than the requirement for the tank interlayer.

[0117] In the technical scheme, the number of sliding blocks 3-6 can be increased or decreased according to the required pressing effect, and the number is at least 2 and at most 8. The upper cover 2-1 and the clamping device 3 are also changed in structure.

[0118] As a preferred embodiment of the utility model:

[0119] As shown in Figure 6 The clamping device installation groove 2-1-3 comprises a sleeve installation groove 2-1-3-1 and a sliding block installation groove 2-1-3-2,

[0120] The sleeve mounting groove 2-1-3-1 is connected with the upper cover through hole 2-1-2 and the slider mounting groove 2-1-3-2, and the slider mounting groove 2-1-3-2 is connected with the sleeve mounting groove 2-1-3-1 and the outer edge of the upper cover body 2-1-1.

[0121] The slider mounting groove 2-1-3-2 penetrates the upper and lower surfaces of the upper cover body 2-1-1, and the slider 3-6 is mounted in the slider mounting groove 2-1-3-2 and can move along the slider mounting groove 2-1-3-2.

[0122] As a preferred embodiment of the present application:

[0123] As shown in Figure 8 , the slider 3-6 includes a contact section 3-6-1, a fixed section 3-6-2 and a clamping section 3-6-3 connected in sequence from top to bottom.

[0124] One end of the contact section 3-6-1 is connected with the end of the push rod 3-3 extending out of the sleeve 3-2, and the bottom surface of the contact section 3-6-1 is connected with the fixed section 3-6-2.

[0125] The fixed section 3-6-2 is mounted in the slider mounting groove 2-1-3-2, and the bottom surface is connected with the clamping section 3-6-3.

[0126] The clamping section 3-6-3 is L-shaped, and the protruding part faces the direction of the upper cover through hole 2-1-2, and the protruding part cooperates with the clamping groove 2-5-3.

[0127] As a preferred embodiment of the present application:

[0128] As shown in Figure 8 , the contact section 3-6-1 is in the shape of a cuboid as a whole.

[0129] The interface between the contact section 3-6-1 and the slider mounting groove 2-1-3-2 is in the shape of a trapezoid.

[0130] In the present embodiment, the angle and taper of the inclined surface at the contact between the slider 3-6 and the compression ring 2-5 can be changed according to the desired compression effect.

[0131] In the present technical solution, the slider 3-6 can also be in the form of a swing block as shown in Figure 9 . The upper side of the swing block's rotating shaft driven by the pneumatic mechanism makes the swing block rotate, and the clamping hook on the lower side of the rotating shaft can present a movement close to or away from the compression ring 2-5, thereby realizing the compression and loosening of the compression ring 2-5.

[0132] As a preferred embodiment of the present application:

[0133] As shown in Figure 3 and Figure 5As shown, the adsorption chamber housing 1 is generally a closed cylinder, comprising a connecting flange 1-1, a housing cylinder 1-2 and a pipe cap 1-3 connected coaxially in sequence, and further comprising a center column 1-4 installed on the side of the pipe cap 1-3 facing the connecting flange 1-1, wherein the center column 1-4 is coaxial with the housing cylinder 1-2.

[0134] The connecting flange 1-1 is provided with a threaded hole, which is threadedly connected with the upper cover 2-1.

[0135] The center column 1-4 extends into the inner cylinder 2-6.

[0136] The connecting flange 1-1 is penetrated and welded with the inner container cylinder body, and is also a platform for supporting the adsorbent chamber 2. The center column 1-4 serves to guide the installation of the adsorbent chamber 2 and to transmit more low-temperature medium to the adsorbent in the box.

[0137] As a preferred embodiment of the present application:

[0138] As shown in Figure 1 The sleeve 3-2 is installed on the upper cover body 2-1-1 through the pipe clamp 4.

[0139] The specific working process of the utility model:

[0140] In combination with FIGS. 10(a) and 10(b), the mechanism action of the adsorption device of the utility model is further introduced in detail in terms of the state from the completion of filling to the end of evacuation, the state during normal operation of the adsorption device and the like.

[0141] During the filling of the adsorbent, the adsorbent chamber 2 can be pulled out as a whole for operation in a convenient place. At this time, it should be ensured that:

[0142] ① The four sliding blocks 3-6 are located in the sliding grooves near the center of the upper cover 2-1, the clamps below the sliding blocks 3-6 press the sealing ring 2-9 between the compression ring 2-5 and the upper cover 2-1 tightly to form a seal.

[0143] ② The film 2-4 between the compression ring 2-5 and the lower cover 2-2 is basically straightened, and the sleeve is seamless, and the upper clamp 2-8 and the lower clamp 2-2-5 are tightly fastened to form a seal.

[0144] ③ The sealed space formed by ① and ② can be checked for airtightness by installing a process cover at the filling port. The airtight pressure does not need to be too high, and it is only necessary to ensure that the sealed space can block the entry of water vapor, oxygen and nitrogen gas in the atmospheric environment.

[0145] After the above items are completed, the activated molecular sieve can be filled into the adsorbent chamber 2, and then the filling port cover 2-7 is screwed. When the tank body interlayer is completed and the evacuation is about to start, the lower cover through hole 2-2-2 of the lower cover 2-2 in the adsorbent chamber 2 is aligned with the center column 1-4, and is slowly inserted. After being tightly fastened, the clamping device 3 is installed in place, and finally the connection pipe 3-5 is connected to the tank body shell.

[0146] After the evacuation is completed, the external pipe of the connection pipe 3-5 is connected to the gas source, a specified pressure is applied to make the rubber diaphragm plate 3-4 move towards the front end of the sleeve 3-2, and the push rod 3-3 is driven to extend from the front end of the sleeve 3-2, and then the slider 3-6 is pushed away from the center of the upper cover 2-1. Since the contact between the clamping hook below the slider 3-6 and the compression ring 2-5 is a slope, after overcoming the initial resistance, the slider 3-6 can be smoothly released and will not be blocked.

[0147] After reaching the predetermined stroke, the clamping hook below the slider 3-6 is completely separated from the compression ring 2-5, and the compression ring 2-5 falls along the cylinder 2-3 on the adsorbent chamber 2 under the action of its own weight, and the film 2-4 around the compression ring 2-5 is a soft material and will be removed together with the compression ring 2-5 and form a stack in the local height at the bottom, and the adsorption surface (i.e. the outer cylindrical surface of the cylinder 2-3) is mostly exposed, and the adsorption device starts to work normally. The realization of this function has certain requirements for the film material, mainly: ① The film left in the vacuum interlayer must have very low outgassing rate. ② The film has a certain degree of ability to prevent gas and water from penetrating. ③ The material of the film should be able to withstand the heating temperature during evacuation. In combination with the above requirements, PTFE or PI film with a thickness of about 0.3mm is more suitable.

[0148] The above technical solutions are only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can think of changes or replacements within the technical range disclosed by the present application without creative labor, which are all covered within the protection scope of the present application.

Claims

1. A sealable, detachable, low temperature adsorption apparatus comprising a sleeve jointed adsorption chamber housing (1) and an adsorbent chamber (2) which extends into the adsorption chamber housing (1) and is connected to the top of the adsorption chamber housing (1), characterized in that The adsorbent chamber (2) comprises an upper cover (2-1), a lower cover (2-2) and a cylinder (2-3) installed between the upper cover (2-1) and the lower cover (2-2), wherein the cylinder (2-3) is a thin-walled porous pipe; The adsorbent chamber (2) further comprises a film (2-4) installed on the outer side of the cylinder (2-3), wherein one end of the film (2-4) is connected with the lower cover (2-2), and the other end is sleeved with a compression ring (2-5) on the outer side, the compression ring (2-5) can move along the cylinder (2-3) and can be clamped with the upper cover (2-1); The upper cover (2-1) is detachably connected with the top of the adsorbent chamber shell (1).

2. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 1, wherein, The upper cover (2-1) is generally disc-shaped, comprising a disc-shaped upper cover body (2-1-1) and an upper cover through hole (2-1-2) formed in the center of the upper cover body (2-1-1); The upper cover (2-1) further comprises a clamping device installation groove (2-1-3) formed on the upper surface of the upper cover body (2-1-1), and the clamping device installation groove (2-1-3) is arranged radially from the upper cover through hole (2-1-2) to the edge of the upper cover body (2-1-1); The upper cover (2-1) further comprises a sealing tenon (2-1-4) formed on the lower surface of the upper cover body (2-1-1) and an upper inner cylinder connecting ring (2-1-5); The sealing tenon (2-1-4) is annular, the upper inner cylinder connecting ring (2-1-5) is installed at the edge of the upper cover through hole (2-1-2), and the sealing tenon (2-1-4) is installed between the upper inner cylinder connecting ring (2-1-5) and the edge of the upper cover body (2-1-1); The lower cover (2-2) is generally disc-shaped, comprising a disc-shaped lower cover body (2-2-1) and a lower cover through hole (2-2-2) formed in the center of the lower cover body (2-2-1); The lower cover (2-2) further comprises a lower inner cylinder connecting ring (2-2-3) and a cylinder connecting ring (2-2-4) installed on the upper surface of the lower cover body (2-2-1), the cylinder (2-3) is connected with the cylinder connecting ring (2-2-4), and the lower inner cylinder connecting ring (2-2-3) is installed at the edge of the lower cover through hole (2-2-2); The lower cover (2-2) further comprises a clamp groove installed on the outer side of the lower cover body (2-2-1), and the film (2-4) is connected with the clamp groove through a lower clamp (2-2-5); The upper cover body (2-1-1) is further provided with a mounting hole (2-1-6); The upper cover body (2-1-1) is further provided with a vent hole (2-1-7).

3. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 2, wherein, The adsorbent chamber (2) further comprises an inner cylinder (2-6) coaxially installed in the cylinder (2-3), wherein the bottom end of the inner cylinder (2-6) is connected with the lower inner cylinder connecting ring (2-2-3), and the top end is connected with the upper inner cylinder connecting ring (2-1-5). The upper cover (2-1) further comprises a filling port on the upper cover body (2-1-1), and a filling port cover (2-7) is mounted on the filling port.

4. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 2, wherein, The compression ring (2-5) comprises a ring-shaped compression ring body (2-5-1), a sealing groove (2-5-2) on the upper surface of the compression ring body (2-5-1), and a clamping groove (2-5-3) on the outer surface of the compression ring body (2-5-1). The film (2-4) is connected with the clamping groove (2-5-3) through the upper clamping hoop (2-8). The sealing groove (2-5-2) is provided with a sealing ring (2-9), and the sealing ring (2-9) cooperates with the sealing tenon (2-1-4).

5. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 4, wherein, The upper cover (2-1) is further provided with a clamping device (3). The clamping device (3) comprises an intermediate cavity (3-1) and a sleeve (3-2) mounted around the intermediate cavity (3-1), the sleeve (3-2) is sleeved with a push rod (3-3), and one end of the push rod (3-3) extending out of the sleeve (3-2) is away from the intermediate cavity (3-1). The clamping device (3) further comprises a rubber membrane plate (3-4), one end of the rubber membrane plate (3-4) is open, the rubber membrane plate (3-4) is sleeved with one end of the intermediate cavity (3-1) and the sleeve (3-2), and the other end of the rubber membrane plate (3-4) extends into the sleeve (3-2) and contacts the end of the push rod (3-3). The clamping device (3) further comprises a connecting pipe (3-5) connected to the intermediate cavity (3-1), and the connecting pipe (3-5) communicates with the intermediate cavity (3-1). The clamping device (3) further comprises a sliding block (3-6) mounted in the clamping device mounting groove (2-1-3), one end of the push rod (3-3) extending out of the sleeve (3-2) is connected with the sliding block (3-6), and the sliding block (3-6) cooperates with the compression ring (2-5).

6. A sealed, removable, low temperature adsorbent chamber device according to claim 5, wherein, The clamping device mounting groove (2-1-3) comprises a sleeve mounting groove (2-1-3-1) and a sliding block mounting groove (2-1-3-2). The sleeve mounting groove (2-1-3-1) is connected with the upper cover through hole (2-1-2) and the sliding block mounting groove (2-1-3-2), the sliding block mounting groove (2-1-3-2) is connected with the sleeve mounting groove (2-1-3-1) and the outer edge of the upper cover body (2-1-1). The sliding block mounting groove (2-1-3-2) penetrates the upper and lower surfaces of the upper cover body (2-1-1), and the sliding block (3-6) is mounted in the sliding block mounting groove (2-1-3-2) and can move along the sliding block mounting groove (2-1-3-2).

7. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 6, wherein, The sliding block (3-6) comprises a contact section (3-6-1), a fixed section (3-6-2) and a clamping section (3-6-3) connected in sequence from top to bottom. One end of the contact section (3-6-1) is connected with one end of the push rod (3-3) extending out of the sleeve (3-2), and the bottom surface of the contact section (3-6-1) is connected with the fixed section (3-6-2). The fixed section (3-6-2) is installed in the slider mounting groove (2-1-3-2) and the bottom surface is connected with the clamping section (3-6-3); The clamping section (3-6-3) is L-shaped, the protruding part is directed to the upper cover through hole (2-1-2), and the protruding part is matched with the clamping groove (2-5-3).

8. A sealed, removable, low temperature adsorbent chamber device according to claim 7, wherein, The contact section (3-6-1) is in the shape of a cuboid as a whole. The interface between the contact section (3-6-1) and the slider mounting groove (2-1-3-2) is in the shape of a trapezoid.

9. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 2, wherein, The adsorption chamber shell (1) is in the shape of a closed cylinder as a whole, comprising a connecting flange (1-1), a shell cylindrical tube (1-2) and a tube cap (1-3) connected coaxially in sequence, further comprising a center column (1-4) installed on the side of the tube cap (1-3) directed to the connecting flange (1-1), and the center column (1-4) is coaxial with the shell cylindrical tube (1-2); The connecting flange (1-1) is provided with a threaded hole and is screwed with the upper cover (2-1); The center column (1-4) extends into the inner cylinder (2-6).

10. A sealed, removable, low temperature adsorbent chamber apparatus according to claim 5, wherein, The sleeve (3-2) is installed on the upper cover body (2-1-1) through a tube clamp (4).

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