SUMMERY OF THE UTILITY MODEL
For solving the technical problem above, the utility model provides a can improve pressure vessel of bearing capacity under the prerequisite of guaranteeing the pressure vessel security.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a pressure vessel, including two at least overhead tanks, at least two the volume of overhead tank increases in proper order, and at least two the overhead tank is suit from inside to outside in proper order, each according to the mode that the volume is big to the overhead tank is enclosed construction and each other not UNICOM, each the overhead tank is used for respectively through pipeline and pressure equipment intercommunication, so that pressure equipment is to each the inside pressurization or the decompression of overhead tank.
Further, each pressure tank all includes a jar body and apron, be equipped with the opening on the jar body, the apron is used for sealing and opens the opening, each pressure tank the opening orientation is the same.
Furthermore, each apron all is equipped with the first passageway that link up the setting, and the inlayer be equipped with one on the apron the first passageway, in from inside to outside direction, each layer on the apron first passageway quantity increases progressively in proper order, and the skin part on the apron first passageway and adjacent inlayer on the apron first passageway one-to-one just communicates through the second passageway respectively.
Furthermore, the first channel comprises a first communication pipe penetrating through the cover plate and two first connecting joints detachably arranged at two ends of the first communication pipe respectively, and the two first connecting joints are distributed at two sides of the cover plate; the second channel comprises a second communicating pipe and two second connectors detachably arranged at two ends of the second communicating pipe respectively, one of the first connectors and the second connectors is provided with an internal thread, and the other one of the first connectors and the second connectors is provided with an external thread matched with the internal thread in a threaded manner.
Further, two first connector all through threaded connection's mode with first communicating pipe is connected, two the second connector all through threaded connection's mode with the second is connected communicating pipe.
Further, the cover plate of the outer layer is connected with the adjacent cover plate of the inner layer through a threaded fastener.
Furthermore, the outer layer of the cover plate and the adjacent inner layer of the cover plate are respectively provided with a threaded hole at the corresponding position, and a screw penetrates through the two threaded holes in sequence to connect the two cover plates.
Further, the tank body and the cover plate are connected through a threaded fastener.
The utility model discloses for prior art gain following technological effect:
the utility model discloses a pressure vessel, including two at least overhead tanks, the volume of two at least overhead tanks increases in proper order, and two at least overhead tanks suit from inside to outside in proper order according to the mode that the volume is big to, and each overhead tank is enclosed construction and each other not UNICOM, and each overhead tank is used for respectively communicating through pipeline and pressure equipment to make pressure equipment to each overhead tank inside pressurization or decompression.
According to the configuration, the utility model provides a pressure vessel utilizes the form of multilayer overhead tank suit in proper order, pressure in the overhead tank to the inlayer is balanced, thereby make the pressure differential of the jar wall both sides of each layer overhead tank far less than the pressure limit that sealed metal can bear, thereby improve the internal pressure of inlayer overhead tank, and even because long-time the use, microcrack or micropore appear in certain layer jar wall, and lead to this overhead tank to become invalid completely, two-layer pressure has carried out the stack, can not exceed the resistance to compression limit of equipment yet, thereby personnel's safety has been guaranteed.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-2, an embodiment of the present invention provides a pressure vessel 100 including at least two pressure tanks. The volumes of the at least two pressure tanks are sequentially increased, and the at least two pressure tanks are sequentially sleeved from inside to outside in a mode that the volumes are from small to large. Referring to fig. 1, for example, the number of pressure tanks is four. Each pressure tank is an independent sealing mechanism, namely all the pressure tanks are not communicated. Each pressure tank is respectively used for being communicated with equipment through a pipeline, so that the pressure equipment pressurizes or depressurizes the inside of each pressure tank. Alternatively, the pressure device may be a pressurizing device or an evacuating device.
According to the configuration, the utility model provides a pressure vessel 100 utilizes the form of multilayer overhead tank suit in proper order, pressure in the overhead tank to the inlayer is balanced, thereby make the pressure differential of the jar wall both sides of each layer overhead tank far less than the pressure limit that sealed metal can bear, thereby improve the internal pressure of inlayer overhead tank, and even because long-time the use, microcrack or micropore appear in certain layer jar wall, and lead to this overhead tank to become invalid completely, two-layer pressure has carried out the stack, can not exceed the resistance to compression limit of equipment yet, thereby personnel's safety has been guaranteed.
In other words, the pressure container 100 provided by the embodiment of the present invention utilizes the idea of the multilayer pressure tank, and utilizes the pressure difference between layers to perform the purpose of reducing pressure (pressurizing) layer by layer, thereby preventing the air pressure values on both sides of the single-layer tank wall from exceeding the limit that can be borne by the material of the tank body 1, so that the application pressure range of the pressure container 100 is wider, and when in use, a sample to be pressurized is placed in the innermost pressure tank, and then the pressure tanks are nested from inside to outside. The use of pressurization is described below, and the principle of depressurization is the same.
The specific process of use is exemplified by a four-layer pressure tank as shown in fig. 1. First, the sample is placed in the innermost pressure vessel and sealed. Then, the pressure tanks are sleeved and closed in sequence until the closing work of the outermost pressure tank is completed. And simultaneously pressurizing all the pressure tanks, namely filling n atmospheric pressures into all the pressure tanks. Assuming that the limit of use of the material is m atmospheres, n is less than m/2, so that the stress limit of a certain layer can be ensured not to be exceeded after air leakage, and the interlink failure is generated. Then, the three inner pressure tanks except the outermost pressure tank were pressurized to reach 2n atmospheres. Then, the two inner pressure tanks are pressurized to make the pressure in the two inner pressure tanks reach 3n atmospheric pressures. And finally, pressurizing the pressure tank of the innermost layer to enable the pressure in the pressure tank of the innermost layer to reach 4n atmospheric pressures, so that the bearing limit of the pressure tank of the inner layer is increased by utilizing a superposition effect.
Compared with the conventional single-layer pressure device, the embodiment of the present invention provides a pressure vessel 100 that employs a multilayer pressure superposition effect. Compared with the traditional device, for the same pressure value, the pressure difference between the inner side and the outer side of the single-layer device is skillfully reduced (if the pressure value is n layers, the pressure value p is divided into n parts, each part is respectively borne by a certain layer, and each part is just borne by 1/n of the single-layer device), so that the safety of the device is greatly improved. For the device with higher requirement on the pressure value, the idea of layer-by-layer superposition can be utilized to increase the pressure value at the center of the cavity to be n times of the pressure value of the single-layer cavity, and the range of the pressure value which can be born by the device is greatly improved.
Referring to fig. 1, in the present embodiment, each pressure tank includes a tank body 1 and a cover plate 2, the tank body 1 is provided with an opening, the cover plate 2 is used for sealing and opening the opening of the tank body 1, and the opening of each pressure tank faces the same direction. Alternatively, the can 1 and the cover 2 are connected by threaded fasteners, such as set screws 12, as shown in fig. 1.
Referring to fig. 1, in the present embodiment, each cover plate 2 is provided with a first channel 3 penetrating therethrough. The cover plate 2 of the innermost layer is provided with a first channel 3, and the number of the first channels 3 on the cover plates 2 of each layer increases gradually from inside to outside. For example, when the number of pressure tanks is four, the outermost cover plate 2 has four first passages 3, and the second outermost cover plate 2 has three first passages 3. And partial first channels 3 on the outer-layer cover plate 2 correspond to the first channels 3 on the adjacent inner-layer cover plate 2 one by one, and each first channel 3 is communicated with the corresponding first channel 3 through a second channel 4. Taking the outermost cover plate 2 in fig. 1 as an example, four first channels 3 are provided on the cover plate 2, and three of the first channels 3 are in one-to-one correspondence with three channels on the secondary outer cover plate 2 and are respectively communicated through the second channels 4. When in use, the four first channels 3 on the outermost cover plate 2 are respectively communicated with pressure equipment through the guide pipes 10, the switch 11 is respectively arranged on each guide pipe 10, and the switch 11 can be a gas switch valve. In this way, the four first channels 3 on the outermost cover plate 2 are able to communicate the four pressure tank interiors with the pressure equipment, respectively.
Referring to fig. 1 and 2, in the present embodiment, the first channel 3 includes a first connecting pipe 5 penetrating through the cover plate 2 and two first connecting joints 6 detachably disposed at two ends of the first connecting pipe 5, and the two first connecting joints 6 are distributed at two sides of the cover plate 2. The second channel 4 includes a second communicating pipe 7 and two second connectors 8 detachably disposed at both ends of the second communicating pipe, respectively, one of the first connector 6 and the second connector 8 is provided with an internal thread, and the other is provided with an external thread engaged with the internal thread. For example, when the innermost pressure tank is placed into the adjacent outer pressure tank, the second connector 8 at one end of the second communication pipe 7 is in threaded connection with the first connector 6 of the first communication pipe 5 of the innermost cover plate 2, and the second connector 8 at the other end of the second communication pipe 7 is connected with the first connector 6 of the first communication pipe 5 of the adjacent outer cover plate 2.
Optionally, the two first connectors 6 are connected to the first communication pipe 5 by means of screw connection, and the two second connectors 8 are connected to the second communication pipe 7 by means of screw connection.
In this embodiment, the cover plate 2 of the outer layer is connected to the adjacent cover plate 2 of the inner layer by a screw fastener. So set up, can fix two adjacent overhead tanks, prevent that two adjacent overhead tanks from removing each other. Optionally, the outer-layer cover plate 2 and the adjacent inner-layer cover plate 2 are respectively provided with a threaded hole at corresponding positions, and the screws 9 sequentially penetrate through the two threaded holes to connect the two cover plates 2.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.