CN212904277U - Distribution head structure of high-vacuum low-temperature liquid storage tank - Google Patents
Distribution head structure of high-vacuum low-temperature liquid storage tank Download PDFInfo
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- CN212904277U CN212904277U CN202021558451.4U CN202021558451U CN212904277U CN 212904277 U CN212904277 U CN 212904277U CN 202021558451 U CN202021558451 U CN 202021558451U CN 212904277 U CN212904277 U CN 212904277U
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Abstract
The utility model relates to the technical field of storage devices, in particular to a distribution head structure of a high-vacuum low-temperature liquid storage tank, which comprises a distribution head, wherein the distribution head is provided with a plurality of distribution holes, and the distribution holes extend from the bottom of the distribution head to the inside of the distribution head and are communicated with the side surface of the distribution head; the distribution hole port on the side surface of the distribution head comprises two sections of coaxial hole sections with different apertures, a detachable threaded plug is arranged at the port, and the threaded plug is tightly connected with one section of the coaxial hole section through threads. The utility model discloses a detachable screw plug has been set up to satisfy the demand of pressure testing, trade connecting pipe and distribution head welded connection after the pressure testing finishes, can realize long-term stable sealing connection like this, guarantee the reliability of distribution head.
Description
Technical Field
The utility model relates to a storage device technical field, concretely relates to high vacuum cryogenic liquid storage tank distribution head structure.
Background
The distribution head at the top of the high-vacuum low-temperature liquid storage tank participates in a pressure test process in the construction process, and a pipeline system is required to be welded at the opening of the distribution head after the test is completed so as to complete the installation of the storage tank, so that the later-stage liquid conveying is facilitated.
As shown in fig. 1, each hole of a distribution head of a traditional cryogenic liquid storage tank is a smooth hole, when a pressure test process in a construction process is performed, a pressure test is performed after each hole is welded and blocked by a blocking plate, the blocking plate is removed by adopting a mechanical cutting mode after the test is completed, and then an external connecting pipe is welded. The process method of welding the blocking plate and then cutting off the blocking plate is adopted, so that the process is multiple and complicated; meanwhile, the mechanical property of the distribution head is damaged due to multiple times of welding; welding and cutting damage the dispensing head surface and affect the aesthetic appearance of the dispensing head surface.
As shown in fig. 2, if the distribution head and the external connection pipe are directly connected by the screw connection, the reliability of the screw connection seal becomes low due to the temperature cycle between the low temperature and the normal temperature when the storage tank is operated, which is not favorable for liquid delivery, and the operational reliability of the storage tank is compromised.
Therefore, the structural part of the distribution head of the existing low-temperature liquid storage tank is not ideal enough in meeting pressure test and long-term stable work, has a position capable of being improved, needs to be improved and optimized to obtain a more reasonable technical scheme, and solves the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art mentioned in the above, the utility model provides a high vacuum cryogenic liquid storage tank distribution head structure, aim at adopting segmentation cooperation structure, adopt easy to assemble and the helicitic texture of dismantlement to carry out the shutoff when the pressure testing, adopt the welding mode that the sealing reliability is high to carry out the tube coupling after accomplishing the pressure testing, can satisfy the pressure testing under the condition that does not change, destroy distribution head structure, also can satisfy the long-term steady job demand.
In order to achieve the above object, the utility model discloses the technical scheme who specifically adopts is:
a high vacuum low temperature liquid storage tank distribution head structure comprises a distribution head, wherein a plurality of distribution holes are formed in the distribution head, extend from the bottom of the distribution head to the inside of the distribution head and penetrate through the side surface of the distribution head; the distribution hole port on the side surface of the distribution head comprises two sections of coaxial hole sections with different apertures, a detachable threaded plug is arranged at the port, and the threaded plug is tightly connected with one section of the coaxial hole section through threads. It can be seen that the diameter of the section of the coaxial bore on the outside, which is closer to the lateral surface of the dispensing head, is greater than the diameter of the section of the coaxial bore on the inside, which is further from the lateral surface of the dispensing head.
The distribution head structure is generally arranged at the top pipeline of the storage tank, and when pressure test is carried out, a pressure test can be carried out by screwing the threaded plug to seal the distribution hole; and after the pressure test is finished, the threaded plug is removed, a connecting pipeline is arranged in the coaxial hole section and is welded and sealed tightly, and then later-stage liquid conveying operation can be carried out.
Furthermore, the two coaxial hole sections described in the above can be connected to the threaded plug in more than one way, and a specific possible solution is as follows: and a thread matched with the thread plug is arranged on the coaxial hole section of the inner side far away from the side surface of the distribution head. When the scheme is adopted, the inner coaxial hole section is arranged at the threaded connection position of the threaded plug, and after pressure test is finished, a connecting pipeline with the size matched with the outer coaxial hole section can be selected for welding.
Still further, another particularly feasible solution is to connect the threaded plug with the dispensing head: and in the two sections of coaxial hole sections, the coaxial hole section on the outer side close to the side surface of the distribution head is provided with a thread matched with the thread plug. When the mode is adopted, the threaded plug is connected with the coaxial hole section on the outer side, and after the pressure test is finished, the connecting pipeline with the size matched with the coaxial section on the inner side can be selected for welding.
And further, when the threads are arranged in the coaxial hole section close to the side surface of the distribution head at the outer side, the other coaxial hole section is optimized, and the abutting step for abutting against the connecting pipe is arranged in the coaxial hole section far from the side surface of the distribution head at the inner side.
Further, the two coaxial hole sections have different apertures, and the structure of the threaded plug is optimized, so that the plugging effect of the threaded plug on the distribution head is better, and the following specific feasible schemes are provided: the rod part of the threaded plug comprises a front rod part and a rear rod part which are respectively matched with the two coaxial hole sections, and a shaft shoulder structure is arranged between the front rod part and the rear rod part for transition. The front rod part extends into the distribution hole and is matched with the inner coaxial hole section, and the rear rod part is matched with the outer coaxial hole section.
Furthermore, a step structure is arranged between the two sections of coaxial hole sections, a sealing gasket is arranged at the step structure, and after the threaded plug is connected into the distribution hole, the sealing gasket is abutted by the combined action of the shoulder structure and the step structure. This arrangement enhances the sealing effect.
Further, according to the demand of storage tank in practical application, can suitably adjust the quantity of distribution hole the utility model discloses in optimize the setting to the quantity of distribution hole, distribution hole quantity be two at least.
Furthermore, the interior of the storage tank connected with the distribution head is low-temperature high-pressure liquid, so that the structure of the distribution head is optimized, and the distribution head is cylindrical. The significance of this is that the cylindrical structure is more capable of withstanding high pressures.
Further, the distribution head is connected and installed to the storage tank, and the bottom of the distribution head is provided with a mounting groove. The mounting groove is connected and communicated with the joint on the storage tank and is fixed.
Further, the structure of the mounting groove is optimized, and the following specific feasible schemes are given as follows: notch department of mounting groove set up and draw the nest structure, welding construction when easy to assemble inside neck pipe.
When the pressure testing device is applied specifically, the distribution head is connected to the joint on the storage tank, when pressure testing is needed, the threaded plug is connected to the distribution hole to realize plugging, and the pressure testing is started at the moment; after the pressure testing is finished, the threaded plug is taken out, the connecting pipe is inserted into the distribution hole and is welded and hermetically connected, and therefore later-stage liquid conveying can be performed.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model discloses a detachable screw plug has been set up to satisfy the demand of pressure testing, change the connecting pipe after the pressure testing finishes and be connected with the distribution head, can realize long-term stable sealing connection like this, guarantee the reliability of distribution head.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional view of a conventional dispensing head using a closure plate.
Fig. 2 is a schematic sectional view showing a direct connection with a connection pipe using a screw.
Fig. 3 is a schematic top view of the dispensing head of the present invention.
Fig. 4 is a schematic sectional view of the section a-a in fig. 3.
FIG. 5 is a schematic cross-sectional view of the section B-B of FIG. 3 with a threaded plug.
Fig. 6 is a schematic sectional view of the C-C section of fig. 3.
Fig. 7 is a schematic structural view of the threaded plug.
Fig. 8 is a schematic view of the connection for liquid delivery after the dispensing head has been installed.
Fig. 9 is a schematic view of the connection of the dispensing head to the connecting tube of fig. 8.
In the above drawings, the meanings of the respective symbols are: 1. a dispensing head; 2. a dispensing aperture; 201. an inner coaxial bore section; 202. an outer coaxial bore section; 3. a blocking plate; 4. mounting grooves; 401. a socket structure; 5. a threaded plug; 501. a rear rod portion; 502. a front rod part; 6. sealing gaskets; 7. and (4) connecting the pipes.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Example 1
The structure of the distribution head 1 of the storage tank is explained in the embodiment, the distribution head 1 is made of metal materials and is processed by quenching and high-temperature tempering processes, so that the distribution head has extremely high strength and hardness, and the surface roughness is less than or equal to 6.3.
Specifically, as shown in fig. 3 to 9, the distribution head structure of the high vacuum low temperature liquid storage tank in the present embodiment includes a distribution head 1, where the distribution head 1 is provided with a plurality of distribution holes 2, and the distribution holes 2 extend from the bottom of the distribution head 1 to the inside of the distribution head 1 and penetrate through to the side surface of the distribution head 1; the port of the distribution hole 2 on the side surface of the distribution head 1 comprises two sections of coaxial hole sections with different apertures, a detachable threaded plug 5 is arranged at the port, and the threaded plug 5 is tightly connected with one section of the coaxial hole section through threads. It can be seen that the diameter of the coaxial bore section on the outside, close to the lateral surface of the dispensing head 1, is greater than the diameter of the coaxial bore section on the inside, far from the lateral surface of the dispensing head 1.
The structure of the distribution head 1 disclosed above is generally arranged at the top liquid pipeline of the storage tank, and when pressure test is carried out, a pressure test experiment can be carried out by screwing the threaded plug 5 to seal the distribution hole 2; and after the pressure test is finished, the threaded plug 5 is removed, a connecting pipeline is arranged in the coaxial hole section, and the coaxial hole section is welded and sealed tightly, so that the later-stage liquid conveying operation can be performed.
The two coaxial bore sections described above can be connected to the plug 5 in more than one way, and a specific possible solution is: the section of the coaxial hole with the inner side far away from the side surface of the distribution head 1 is provided with a thread matched with the thread plug 5. When the scheme is adopted, the inner coaxial hole section 201 is in the threaded connection position of the threaded plug 5, and after pressure test is finished, a connecting pipeline with the size matched with that of the outer coaxial hole section 202 can be selected for welding.
The two coaxial hole sections have different apertures, and the structure of the threaded plug 5 is optimized, so that the plugging effect of the threaded plug 5 on the distribution head 1 is better, and the following specific feasible schemes are provided: the rod part of the threaded plug 5 comprises a front rod part 502 and a rear rod part 501 which are respectively matched with the two coaxial hole sections, and a shaft shoulder structure is arranged between the front rod part 502 and the rear rod part 501 for transition. The front stem 502 extends further into the dispensing hole 2 and cooperates with the inner coaxial bore section 201 and the rear stem 501 cooperates with the outer coaxial bore section 202.
The step structure 203 is arranged between the two sections of coaxial hole sections, the sealing gasket 6 is arranged at the step structure 203, and after the threaded plug 5 is connected into the distribution hole 2, the sealing gasket 6 is tightly abutted by the shaft shoulder structure. This arrangement enhances the sealing effect.
According to the demand of storage tank in practical application, can suitably adjust the quantity of distribution hole 2, in the utility model discloses the quantity of carrying out optimization setting to distribution hole 2, distribution hole 2 quantity be two at least.
Preferably, the number of dispensing holes 2 provided in this embodiment is five.
The interior of a storage tank connected with the distribution head 1 is low-temperature high-pressure liquid, so that the structure of the distribution head 1 is optimized, and the distribution head 1 is cylindrical. The significance of this is that the cylindrical structure is more capable of withstanding high pressures.
In this embodiment, the dispensing head 1 has a diameter of 180mm and a height of 90 mm.
The distribution head 1 is connected and installed to the storage tank, and the bottom of the distribution head 1 is provided with an installation groove 4. The mounting groove 4 is connected and communicated with the joint on the storage tank and is fixed.
Preferably, the mounting groove 4 is a circular groove, and the diameter of the mounting groove 4 is 110 mm.
The structure of the installation groove 4 is optimized, and the following specific feasible schemes are given: the notch of the mounting groove 4 is provided with a socket structure 401.
When the utility model is applied specifically, the distribution head 1 is connected to the joint on the storage tank, when pressure test is needed, the threaded plug 5 is connected to the distribution hole 2 to realize plugging, and pressure test is started at the moment; after the pressure test is finished, the threaded plug 5 is taken out, the connecting pipe 7 is inserted into the distribution hole 2 and is welded and hermetically connected, and therefore later-stage liquid conveying can be performed. The structure in this embodiment is more reliable than the structure in which the blocking plate 3 is provided in fig. 1 and the structure in which the screw is directly provided to communicate with the connection pipe 7 in fig. 2.
Example 2
This embodiment discloses a dispensing head structure, the same as in embodiment 1: the automatic dispensing device comprises a dispensing head 1, wherein a plurality of dispensing holes 2 are formed in the dispensing head 1, and the dispensing holes 2 extend from the bottom of the dispensing head 1 to the inside of the dispensing head 1 and penetrate through the side surface of the dispensing head 1; the port of the distribution hole 2 on the side surface of the distribution head 1 comprises two sections of coaxial hole sections with different apertures, a detachable threaded plug 5 is arranged at the port, and the threaded plug 5 is tightly connected with one section of the coaxial hole section through threads. It can be seen that the diameter of the coaxial bore section on the outside, close to the lateral surface of the dispensing head 1, is greater than the diameter of the coaxial bore section on the inside, far from the lateral surface of the dispensing head 1.
The present embodiment optimizes the structure of the distribution holes 2, and differs from embodiment 1 in that: in this embodiment, another specific possible solution is to connect the threaded plug 5 to the dispensing head 1, and of the two coaxial hole sections, the coaxial hole section on the outer side near the side surface of the dispensing head 1 is provided with threads matching with the threaded plug 5. When the mode is adopted, the threaded plug 5 is connected with the coaxial hole section on the outer side, and after the pressure test is finished, a connecting pipeline with the size matched with the coaxial section on the inner side can be selected for welding.
When the threads are arranged in the coaxial hole section close to the side surface of the distribution head 1 on the outer side, the other coaxial hole section is optimized, and the abutting step for abutting against the connecting pipe 7 is arranged in the coaxial hole section far from the side surface of the distribution head 1 on the inner side.
The structure of the other parts in this embodiment is the same as that in embodiment 1, and will not be described herein again.
The above embodiments are just examples of the present invention, but the present invention is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining the above embodiments, and any one can obtain other various embodiments by the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.
Claims (10)
1. A high-vacuum low-temperature liquid storage tank distribution head structure comprises a distribution head (1), wherein a plurality of distribution holes (2) are formed in the distribution head (1), and the distribution holes (2) extend from the bottom of the distribution head (1) to the inside of the distribution head (1) and penetrate through the side surface of the distribution head (1); the method is characterized in that: the port of the distribution hole (2) on the side surface of the distribution head (1) comprises two sections of coaxial hole sections with different apertures, a detachable threaded plug (5) is arranged at the port, and the threaded plug (5) is tightly connected with one section of the coaxial hole section through threads.
2. The high vacuum cryogenic liquid sump dispensing head structure of claim 1, wherein: and in the two sections of coaxial hole sections, the coaxial hole section of which the inner side is far away from the side surface of the distribution head (1) is provided with a thread matched with the thread plug (5).
3. The high vacuum cryogenic liquid sump dispensing head structure of claim 1, wherein: and in the two sections of coaxial hole sections, the coaxial hole section of which the outer side is close to the side surface of the distribution head (1) is provided with a thread matched with the thread plug (5).
4. The high vacuum cryogenic liquid sump dispensing head structure of claim 3, wherein: a tight abutting step for abutting against the connecting pipe (7) is arranged in the coaxial section of the inner side far away from the side surface of the distribution head (1).
5. The distribution head structure of a high vacuum cryogenic liquid storage tank of any one of claims 1 to 4, wherein: the rod part of the threaded plug (5) comprises a front rod part (502) and a rear rod part (501) which are respectively matched with the two coaxial hole sections, and a shaft shoulder structure is arranged between the front rod part (502) and the rear rod part (501) for transition.
6. The high vacuum cryogenic liquid sump dispensing head structure of claim 5, wherein: step structures (203) are arranged between the two sections of coaxial hole sections, sealing gaskets (6) are arranged at the position of the step structures (203), and the sealing gaskets (6) are abutted by the shaft shoulder structures after the threaded plugs (5) are connected into the distribution holes (2).
7. The high vacuum cryogenic liquid sump dispensing head structure of claim 1, wherein: the number of the distribution holes (2) is at least two.
8. The high vacuum cryogenic liquid sump dispensing head structure of claim 1, wherein: the distribution head (1) is cylindrical.
9. The high vacuum cryogenic liquid sump dispensing head structure of claim 1, wherein: the bottom of the distribution head (1) is provided with a mounting groove (4).
10. The high vacuum cryogenic liquid sump dispensing head structure of claim 9, wherein: and a socket structure (401) is arranged at the notch of the mounting groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558451.4U CN212904277U (en) | 2020-07-31 | 2020-07-31 | Distribution head structure of high-vacuum low-temperature liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558451.4U CN212904277U (en) | 2020-07-31 | 2020-07-31 | Distribution head structure of high-vacuum low-temperature liquid storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN212904277U true CN212904277U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021558451.4U Active CN212904277U (en) | 2020-07-31 | 2020-07-31 | Distribution head structure of high-vacuum low-temperature liquid storage tank |
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| CN (1) | CN212904277U (en) |
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