CN215807848U - Pump tank integral type storage tank - Google Patents
Pump tank integral type storage tank Download PDFInfo
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- CN215807848U CN215807848U CN202121936467.9U CN202121936467U CN215807848U CN 215807848 U CN215807848 U CN 215807848U CN 202121936467 U CN202121936467 U CN 202121936467U CN 215807848 U CN215807848 U CN 215807848U
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Abstract
The utility model relates to the technical field of low-temperature pressure containers, in particular to a pump-tank integrated storage tank. The utility model aims to solve the technical problems that the output efficiency of an immersed pump is low due to large pressure loss and high temperature rise when low-temperature liquid is transmitted between a storage tank and the immersed pump. In order to solve the technical problem, the utility model provides a pump-tank integrated storage tank which comprises a storage tank, wherein the storage tank is in a one-tank double-liner mode, a vacuum interlayer is arranged between two layers of the outer side of the storage tank, an inner liner is arranged at the top of the inner side of the storage tank, and a storage tank is arranged at the bottom of the inner side of the storage tank. The submersible pump abandons a conventional independent pump pool structure, the submersible pump is innovatively arranged in the storage tank, the transmission distance is shortened, the temperature rise during the transmission of low-temperature liquid is reduced, compared with pipeline connection, the pressure loss in the pipeline and at the position of an elbow during the transmission of the low-temperature liquid is reduced, the output efficiency of the submersible pump is improved, the space occupation of the pump pool is reduced, and the integral compactness of equipment is improved.
Description
Technical Field
The utility model relates to the technical field of low-temperature pressure containers, in particular to a pump-tank integrated storage tank.
Background
Compared with petroleum and coal, natural gas is cleaner in fossil energy used in modern society and has less pollution to the environment. The natural gas is purified and processed, and the volume of the natural gas can be reduced by a low-temperature liquefaction mode to become Liquefied Natural Gas (LNG), so that the LNG is more convenient to transport and use.
The existing LNG gas station is divided into a skid-mounted gas station, a standard gas station and an L-CNG gas station. The traditional skid-mounted gas station adopts an installation mode that a pump skid is separated from a storage tank, the distance between a pump pool and the storage tank is large, an immersed pump is placed in the pump pool, the cold insulation effect of the pump pool is poor, and low-temperature liquid needs to be communicated through a pipeline in the process of flowing from the storage tank to the pump pool, so that the temperature rise of liquid entering the pump pool is high; the connecting pipelines and elbows between the storage tank and the immersed pump are more, so that the pressure loss of the low-temperature liquid is larger in the process of flowing into the immersed pump from the storage tank, and the output efficiency of the immersed pump is reduced; due to the separated design between the pump pool and the storage tank, the storage tank and the pump pool occupy larger space, and the whole floor area of the equipment is larger.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a pump-tank integrated storage tank, which solves the problems of high pressure loss and high temperature rise of low-temperature liquid during transmission between the storage tank and an immersed pump, and low output efficiency of the immersed pump.
(II) technical scheme
In order to achieve the purpose, the utility model is realized by the following technical scheme: the pump and tank integrated storage tank comprises a storage tank, wherein the storage tank is in a one-tank double-liner mode, a vacuum interlayer is arranged between double layers on the outer side of the storage tank, a liner is arranged at the top of the inner side of the storage tank, and a storage tank is arranged at the bottom of the inner side of the storage tank.
The side of the storage tank is fixedly connected with a vacuum sleeve, one end of the vacuum sleeve penetrates through the vacuum interlayer and extends to the outer side of the storage tank, a storage tank flange is welded at the outer end of the vacuum sleeve, a pump pool cover is fixedly connected at the outer end of the storage tank flange, a pump pool is formed by combining the interior of the pump pool cover and the inner side of the vacuum sleeve, and the pump pool is communicated with the storage tank.
The submersible pump is fixedly sleeved in the pump pool, a liquid inlet of the submersible pump extends inwards to form a port on the inner side of the vacuum sleeve and is arranged on the inner side of the storage tank, a pump flange is arranged at a position, deviating from the port of the storage tank, of the submersible pump, a pump pool flange is fixedly connected to the side face of the inner wall of the pump pool cover, and the pump flange is fixedly connected with the pump pool flange through bolts.
The pump pool is characterized in that a built-in heat-insulating layer is fixedly sleeved inside the pump pool, and the outer end of the immersed pump is fixedly sleeved on the inner side of the built-in heat-insulating layer.
Further preferably, a gas phase pipeline a and a gas phase pipeline B are fixedly connected to the side surface of the storage tank.
One end of the gas phase pipeline A penetrates through the vacuum interlayer and is communicated with the storage tank, and the other end of the gas phase pipeline A is fixedly connected with an exhaust valve.
One end of the gas phase pipeline B penetrates through the vacuum interlayer and extends to the top of the inner side of the inner container, a gas phase communicating valve is connected in series in the middle of the gas phase pipeline B, and the other end of the gas phase pipeline B is connected to the middle of the gas phase pipeline A through a three-way connecting piece.
And the bottom end of the storage tank is fixedly connected with a liquid phase pipeline A and a liquid phase pipeline B.
One end of the liquid phase pipeline A penetrates through the vacuum interlayer and is communicated with the storage tank, and the other end of the liquid phase pipeline A is fixedly connected with a replacement valve.
One end of the liquid phase pipeline B penetrates through the vacuum interlayer and extends to the bottom of the inner wall of the inner container, a liquid phase communicating valve is connected in series with the middle of the liquid phase pipeline B, and the other end of the liquid phase pipeline B is fixedly connected with the middle of the liquid phase pipeline A through a three-way connecting piece.
Further preferably, a gas phase backflow pipeline is arranged at the top of the pump pool, the gas phase backflow pipeline is communicated with the inside of the pump pool, and the gas phase backflow pipeline penetrates through the top surface of the inner wall of the pump pool cover and extends to the upper side of the pump pool cover.
The outer surface of the pump pool is provided with a hoisting point, and the outer surface of the storage tank is provided with a chain block matched with the hoisting point above the pump pool.
Preferably, the built-in heat insulation layer is made of a PIR cold insulation material, and a liquid circulation hole for communicating the vacuum sleeve and the pump pool is formed in the inner side of the built-in heat insulation layer.
Preferably, a reinforcing metal plate is fixedly connected to the bottom side of the middle portion of the immersed pump, the reinforcing metal plate is semicircular, the reinforcing metal plate is fixedly connected to the inner side of the vacuum sleeve, and an overflow through hole is formed in the surface of the reinforcing metal plate.
Further preferably, a reinforcing rib plate is fixedly connected to the bottom side of the vacuum sleeve and the joint position of the bottom side of the storage tank.
Further preferably, the inner diameter of the pump pool is phi 406mm, and the depth is 270 mm.
Further preferably, the inner diameter of the vacuum sleeve is phi 365 mm.
(III) advantageous effects
The utility model provides a pump-tank integrated storage tank which has the following beneficial effects:
(1) the submersible pump disclosed by the utility model abandons a conventional independent pump pool structure, and the submersible pump is innovatively arranged in the storage tank, so that the distance between the submersible pump and the storage tank is effectively shortened, the direct liquid exchange between the storage tank and the pump pool is realized, the absorption of low-temperature liquid to the external environment temperature during the transmission between the storage tank and the submersible pump is reduced, and the temperature rise of the low-temperature liquid is reduced.
(2) Compared with pipeline connection, the low-temperature liquid transmission device has the advantages that the low-temperature liquid transmission distance is shorter through the integrated connection mode of the storage tank and the pump pool, the pressure loss in the pipeline and at the position of the elbow during low-temperature liquid transmission is reduced, and the output efficiency of the immersed pump is improved.
(3) According to the LNG filling device, the immersed pump is directly connected with the storage tank, so that the space occupation of the pump pool in the LNG filling device is reduced, the overall size of the device is reduced, and the overall compactness of the device is improved.
Drawings
FIG. 1 is a partial front cross-sectional view of a structure of the present invention;
FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;
fig. 3 is a schematic view of the installation position of the reinforcing sheet metal of the structure of the present invention.
In the figure: the device comprises a storage tank 1, a vacuum interlayer 2, a liner 3, a storage tank 4, a vacuum sleeve 5, a storage tank flange 6, a pump tank cover 7, a pump tank 8, a submersible pump 9, a pump flange 10, a pump tank flange 11, a built-in heat-insulating layer 12, a gas-phase pipeline A13, a gas-phase pipeline B14, an exhaust valve 15, a gas-phase communication valve 16, a liquid-phase pipeline A17, a liquid-phase pipeline B18, a replacement valve 19, a liquid-phase communication valve 20, a gas-phase reflux pipeline 21, a hoisting point 22, a chain 23, a liquid circulation hole 24, a reinforced metal plate 25, an overflow through hole 26 and a reinforced rib plate 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a pump jar integral type storage tank 1, includes storage tank 1, and storage tank 1 is a jar two courage forms, is vacuum intermediate layer 2 between the 1 outside bilayer of storage tank, and 1 inboard top of storage tank is inner bag 3, and 1 inboard bottom of storage tank is storage tank 4.
The side of the storage tank 4 is fixedly connected with a vacuum sleeve 5, one end of the vacuum sleeve 5 penetrates through the vacuum interlayer 2 and extends to the outer side of the storage tank 1, a storage tank flange 6 is welded at the outer end of the vacuum sleeve 5, a pump tank cover 7 is fixedly connected at the outer end of the storage tank flange 6, a pump tank 8 is formed by combining the inner part of the pump tank cover 7 and the inner side of the vacuum sleeve 5, and the pump tank 8 is communicated with the storage tank 4.
An immersed pump 9 is fixedly sleeved in the pump pool 8, a liquid inlet of the immersed pump 9 extends inwards to form an inner side port of the vacuum sleeve 5 and is arranged on the inner side of the storage tank 4, a pump flange 10 is arranged at a position, deviating from the port of the storage tank 4, of the immersed pump 9, a pump pool flange 11 is fixedly connected to the side face of the inner wall of the pump pool cover 7, and the pump flange 10 is fixedly connected with the pump pool flange 11 through bolts.
The inner part of the pump pool 8 is fixedly sleeved with a built-in heat preservation layer 12, and the outer end of the immersed pump 9 is fixedly sleeved on the inner side of the built-in heat preservation layer 12.
In the present invention, a gas phase pipe a13 and a gas phase pipe B14 are fixedly connected to the side surface of the storage tank 1.
One end of the gas phase pipeline A13 penetrates through the vacuum interlayer 2 and is communicated with the storage tank 4, and the other end of the gas phase pipeline A13 is fixedly connected with an exhaust valve 15.
One end of the gas phase pipeline B14 penetrates through the vacuum interlayer 2 and extends to the top of the inner side of the inner container 3, the middle part of the gas phase pipeline B14 is connected in series with a gas phase communicating valve 16, and the other end of the gas phase pipeline B14 is connected to the middle part of the gas phase pipeline A13 through a three-way connecting piece.
The bottom end of the storage tank 1 is fixedly connected with a liquid phase pipeline A17 and a liquid phase pipeline B18.
One end of the liquid phase pipeline A17 penetrates through the vacuum interlayer 2 and is communicated with the storage tank 4, and the other end of the liquid phase pipeline A17 is fixedly connected with a replacement valve 19.
One end of the liquid phase pipeline B18 penetrates through the vacuum interlayer 2 and extends to the bottom of the inner wall of the inner container 3, the middle part of the liquid phase pipeline B18 is connected in series with a liquid phase communicating valve 20, and the other end of the liquid phase pipeline B18 is fixedly connected with the middle part of the liquid phase pipeline A17 through a three-way connecting piece.
In the utility model, the top of the pump pool 8 is provided with a gas phase return pipeline 21, the gas phase return pipeline 21 is communicated with the inside of the pump pool 8, the gas phase return pipeline 21 penetrates through the top surface of the inner wall of the pump pool cover 7 and extends to the upper part of the inner wall, and the gas phase return pipeline 21 is connected with a gas phase port of the inner container 3 of the storage tank 1 to form a closed loop.
The outer surface of the pump pool 8 is provided with a hoisting point 22, and the outer surface of the storage tank 1 is provided with a chain block 23 matched with the hoisting point 22 above the pump pool 8. The chain block through the hoisting point 22 can bear the weight of the immersed pump 9, share the pressure of the immersed pump 9 to the inner side of the storage tank 4, improve the installation stability and prevent the equipment from being deformed and damaged.
In the utility model, the internal heat-insulating layer 12 is made of PIR cold-insulating material, and the inner side of the internal heat-insulating layer 12 is provided with a liquid circulation hole 24 for communicating the vacuum sleeve 5 and the pump pool 8.
PIR cold insulation material is filled in a gap between the joint position of the storage tank flange 6 and the pump pool 8 at the outer end of the vacuum sleeve 5, so that heat exchange between the equipment and the external environment is reduced, and the cold insulation effect of the joint position of the storage tank 1 and the immersed pump 9 is enhanced.
According to the utility model, the bottom side of the middle part of the immersed pump 9 is fixedly connected with a reinforcing metal plate 25, the reinforcing metal plate 25 is in a semicircular ring shape, the reinforcing metal plate 25 is fixedly connected to the inner side of the vacuum sleeve 5, and the surface of the reinforcing metal plate 25 is provided with an overflow through hole 26.
In the present invention, a reinforcing rib plate 27 is fixedly connected to the bottom side of the vacuum sleeve 5 and the joint position with the bottom side of the storage tank 4.
In the utility model, the inner diameter of the pump pool 8 is phi 406mm, and the depth is 270 mm.
In the present invention, the inner diameter of the vacuum sleeve 5 is phi 365 mm.
The pump-tank integrated storage tank disclosed by the utility model abandons a conventional independent pump pool structure, the immersed pump is innovatively arranged in the storage tank, the distance between the immersed pump and the storage tank is effectively shortened, the direct liquid exchange between the storage tank and the pump pool is realized, the absorption of low-temperature liquid to the external environment temperature during the transmission between the storage tank and the immersed pump is reduced, the temperature rise of the low-temperature liquid is reduced, compared with pipeline connection, the transmission distance of the low-temperature liquid is shorter, the pressure loss in the pipeline and at the elbow position during the transmission of the low-temperature liquid is reduced, the output efficiency of the immersed pump is improved, the immersed pump and the storage tank are directly connected and arranged, the space occupation of the pump pool in LNG filling equipment is reduced, the whole volume of the equipment is reduced, and the whole compactness of the equipment is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model.
Claims (8)
1. A pump jar integral type storage tank (1), includes storage tank (1), its characterized in that: the storage tank (1) is in a one-tank double-container mode, a vacuum interlayer (2) is arranged between two layers on the outer side of the storage tank (1), an inner container (3) is arranged at the top of the inner side of the storage tank (1), and a storage tank (4) is arranged at the bottom of the inner side of the storage tank (1);
a vacuum sleeve (5) is fixedly connected to the side face of the storage tank (4), one end of the vacuum sleeve (5) penetrates through the vacuum interlayer (2) and extends to the outer side of the storage tank (1), a storage tank flange (6) is welded to the outer end of the vacuum sleeve (5), a pump pool cover (7) is fixedly connected to the outer end of the storage tank flange (6), a pump pool (8) is formed by combining the inside of the pump pool cover (7) and the inner side of the vacuum sleeve (5), and the pump pool (8) is communicated with the storage tank (4);
an immersed pump (9) is fixedly sleeved in the pump pool (8), a liquid inlet of the immersed pump (9) extends inwards to form a port on the inner side of the vacuum sleeve (5) and is arranged on the inner side of the storage tank (4), a pump flange (10) is arranged at a position of the immersed pump (9) deviating from the port of the storage tank (4), a pump pool flange (11) is fixedly connected to the side surface of the inner wall of the pump pool cover (7), and the pump flange (10) is fixedly connected with the pump pool flange (11) through bolts;
the pump pool (8) is fixedly sleeved with a built-in heat insulation layer (12), and the outer end of the immersed pump (9) is fixedly sleeved on the inner side of the built-in heat insulation layer (12).
2. Pump-tank integrated tank (1) according to claim 1, characterized in that: a gas phase pipeline A (13) and a gas phase pipeline B (14) are fixedly connected to the side surface of the storage tank (1);
one end of the gas phase pipeline A (13) penetrates through the vacuum interlayer (2) and is communicated with the storage tank (4), and the other end of the gas phase pipeline A (13) is fixedly connected with an exhaust valve (15);
one end of the gas phase pipeline B (14) penetrates through the vacuum interlayer (2) and extends to the top of the inner side of the inner container (3), a gas phase communicating valve (16) is connected in series with the middle of the gas phase pipeline B (14), and the other end of the gas phase pipeline B (14) is connected to the middle of the gas phase pipeline A (13) through a three-way connecting piece;
the bottom end of the storage tank (1) is fixedly connected with a liquid phase pipeline A (17) and a liquid phase pipeline B (18);
one end of the liquid phase pipeline A (17) penetrates through the vacuum interlayer (2) and is communicated with the storage tank (4), and the other end of the liquid phase pipeline A (17) is fixedly connected with a replacement valve (19);
one end of the liquid phase pipeline B (18) penetrates through the vacuum interlayer (2) and extends to the bottom of the inner wall of the inner container (3), a liquid phase communicating valve (20) is connected in series in the middle of the liquid phase pipeline B (18), and the other end of the liquid phase pipeline B (18) is fixedly connected in the middle of the liquid phase pipeline A (17) through a three-way connecting piece.
3. Pump-tank integrated tank (1) according to claim 1, characterized in that: a gas phase return pipeline (21) is arranged at the top of the pump pool (8), the gas phase return pipeline (21) is communicated with the inside of the pump pool (8), and the gas phase return pipeline (21) penetrates through the top surface of the inner wall of the pump pool cover (7) and extends to the upper part of the inner wall;
the outer surface of the pump pool (8) is provided with a hoisting point (22), the outer surface of the storage tank (1) is provided with a chain block (23) matched with the hoisting point (22) above the pump pool (8).
4. Pump-tank integrated tank (1) according to claim 1, characterized in that: the built-in heat-insulating layer (12) is made of PIR cold insulation materials, and liquid circulation holes (24) for communicating the vacuum sleeve (5) with the pump pool (8) are formed in the inner side of the built-in heat-insulating layer (12).
5. Pump-tank integrated tank (1) according to claim 1, characterized in that: the submerged pump is characterized in that a reinforcing metal plate (25) is fixedly connected to the bottom side of the middle of the submerged pump (9), the reinforcing metal plate (25) is in a semicircular ring shape, the reinforcing metal plate (25) is fixedly connected to the inner side of the vacuum sleeve (5), and an overflow through hole (26) is formed in the surface of the reinforcing metal plate (25).
6. Pump-tank integrated tank (1) according to claim 1, characterized in that: and a reinforcing rib plate (27) is fixedly connected to the bottom side of the vacuum sleeve (5) and the joint position of the bottom side of the storage tank (4).
7. Pump-tank integrated tank (1) according to claim 1, characterized in that: the inner diameter of the pump pool (8) is phi 406mm, and the depth is 270 mm.
8. Pump-tank integrated tank (1) according to claim 1, characterized in that: the inner diameter of the vacuum sleeve (5) is phi 365 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121936467.9U CN215807848U (en) | 2021-08-18 | 2021-08-18 | Pump tank integral type storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121936467.9U CN215807848U (en) | 2021-08-18 | 2021-08-18 | Pump tank integral type storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215807848U true CN215807848U (en) | 2022-02-11 |
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ID=80132872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121936467.9U Active CN215807848U (en) | 2021-08-18 | 2021-08-18 | Pump tank integral type storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215807848U (en) |
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2021
- 2021-08-18 CN CN202121936467.9U patent/CN215807848U/en active Active
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