CN109973440B - Mounting structure of vertical cylinder bag pump - Google Patents
Mounting structure of vertical cylinder bag pump Download PDFInfo
- Publication number
- CN109973440B CN109973440B CN201910295153.6A CN201910295153A CN109973440B CN 109973440 B CN109973440 B CN 109973440B CN 201910295153 A CN201910295153 A CN 201910295153A CN 109973440 B CN109973440 B CN 109973440B
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- pump
- cold insulation
- insulation layer
- side wall
- mounting structure
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- 238000009413 insulation Methods 0.000 claims abstract description 107
- 238000007906 compression Methods 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 24
- 239000011494 foam glass Substances 0.000 claims description 22
- 239000012774 insulation material Substances 0.000 claims description 14
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a mounting structure of a vertical cylinder bag pump. The mounting structure of the vertical cylinder bag pump comprises a concrete foundation, a foundation cold insulation layer and a buffer cold insulation layer. The concrete foundation is provided with a containing groove for containing the pump cylinder; the basic cold insulation layer is attached to the outer side wall of the pump cylinder, and the working temperature of the basic cold insulation layer is between-196 ℃ and normal temperature, so that the basic cold insulation layer can still be normally used even under the condition that the temperature of the outer side wall of the pump cylinder is low, the pump cylinder is effectively insulated, and the leakage amount of the cold quantity of the pump cylinder is greatly reduced. The buffering cold insulation layer has elasticity, and the buffering cold insulation layer is filled in the space formed by the side wall of the accommodating groove, the basic cold insulation layer and the outer side wall of the pump cylinder, so that pressure buffering can be carried out between the concrete foundation and the pump cylinder, and the structural stability of the concrete foundation is effectively protected.
Description
Technical Field
The invention relates to a cold insulation process of a vertical cylinder bag pump, in particular to an installation structure of the vertical cylinder bag pump.
Background
The low-temperature vertical cylinder bag pump is mainly used for conveying low-temperature, easily-vaporized, inflammable and explosive mediums, and is widely applied to conveying low-temperature liquefied hydrocarbon and LNG. When the low-temperature vertical cylinder bag pump is installed, a concrete foundation larger than a pump barrel is required to be arranged, however, in the prior art, no cold insulation material exists between the inner side of the concrete foundation and the pump barrel of the low-temperature cylinder bag pump, and the cold insulation measure of the pump barrel cannot be achieved, so that the condition of cold leakage can occur when the low-temperature vertical cylinder bag pump works; the cold volume of revealing can cause the concrete outside to appear freezing phenomenon, can cause concrete foundation to produce the deformation, the crack for a long time, and then has caused the threat to vertical tube bag pump's mounting structure stability.
Disclosure of Invention
An object of the present invention is to improve the cold insulation effect of a vertical type barrel pump by improving a mounting structure.
In order to solve the technical problems, the invention adopts the following technical scheme:
a mounting structure of a vertical type pouch pump having a pump cylinder, the mounting structure of the vertical type pouch pump comprising:
a concrete foundation provided with an accommodating groove for accommodating the pump cylinder;
The basic cold insulation layer is attached to the outer side wall of the pump cylinder, and the working temperature of the basic cold insulation layer is between-196 ℃ and normal temperature; and
The buffering cold insulation layer is elastic, and the buffering cold insulation layer is filled in a space formed by the side wall of the accommodating groove, the basic cold insulation layer and the outer side wall of the pump cylinder.
Optionally, the basic cold insulation material is a foam glass layer, and the foam glass layer is wrapped on the outer side wall of the pump cylinder along the circumferential direction of the pump cylinder.
Optionally, the buffer cold insulation layer is foamed and filled in a space formed by the side wall of the accommodating groove, the basic cold insulation layer and the outer side wall of the pump cylinder, so as to form the buffer cold insulation layer.
Optionally, the buffer cold-insulation layer is a foamed polyurethane layer.
Optionally, the vertical cylinder bag pump further comprises a mounting flange connected with the outer side wall of the pump cylinder;
The mounting structure of the vertical type barrel pump further comprises a supporting piece which transversely penetrates through the concrete foundation, and the supporting piece is connected with a supporting flange of the barrel pump;
The barrel pump mounting structure further comprises a compression-resistant cold-insulation layer, wherein the compression-resistant cold-insulation layer is connected with the supporting piece and is positioned on the upper side of the supporting piece; the compression resistance of the compression-resistant cold-insulating layer is not less than 2MPa.
Optionally, the upper surface of the compression-resistant cold-insulation layer protrudes out of the upper edge of the accommodating groove.
Optionally, the mounting structure of the vertical cylinder bag pump further comprises a waterproof plate; the waterproof plate is transversely connected between the side wall of the accommodating groove and the supporting piece;
The compression-resistant cold-insulating layer is arranged on the surface of the waterproof board.
Optionally, the compression-resistant cold-insulating layer comprises a plurality of foam glass bricks; and the foam glass bricks are stacked and filled in the space surrounded by the waterproof plate, the supporting flange, the outer side wall of the pump cylinder and the side wall of the accommodating groove.
Optionally, the mounting structure of the vertical cylinder bag pump further comprises a cold insulation wood block, and the cold insulation wood block is clamped between the supporting piece and the supporting flange.
Optionally, the barrel pump further comprises a suction pipe and a discharge pipe which are arranged at the upper end of the pump barrel;
The suction pipe and the discharge pipe are wrapped with a pipeline cold insulation layer, and the pipeline cold insulation layer is a foaming polyurethane layer.
According to the technical scheme, the beneficial effects of the invention are as follows:
According to the technical scheme, a basic cold insulation layer and a buffer cold insulation layer are arranged in a containing groove in a concrete foundation, and the working temperature of the basic cold insulation layer is between-196 ℃ and normal temperature; therefore, even if the temperature of the outer side wall of the pump cylinder is lower, the basic cold insulation layer of the scheme can still be normally used, so that the pump cylinder is effectively insulated, and the leakage amount of the cold quantity of the pump cylinder is greatly reduced; the buffering cold insulation layer can further prevent cold energy released from foam glass from being transferred to the concrete foundation, and can buffer pressure between the concrete foundation and the pump cylinder, so that the structural stability of the concrete foundation is improved, and the stability of the vertical cylinder bag pump mounting structure is guaranteed.
Drawings
Fig. 1 is a sectional view of a vertical type pouch pump mounted in a mounting structure of the vertical type pouch pump of the present invention.
The reference numerals are explained as follows:
10. A vertical cylinder bag pump; 11. a pump cylinder; 12. a mounting flange; 13. a suction pipe; 14. a discharge pipe; 20. a concrete foundation; 21. sealing the stainless steel plate; 30. a base cold insulation layer; 40. buffering and cold-keeping layer; 50. a compression-resistant cold-insulation layer; 51. foam glass blocks; 60. a pipeline cold insulation layer; 70. supporting steel; 71. a waterproof board; 72. and (5) isolating the cold wood blocks.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.
For the purpose of further illustrating the principles and structure of the present invention, preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings.
The invention provides a mounting structure of a vertical barrel pump, in particular to the mounting of a low-temperature vertical barrel pump for transmitting low-temperature media. The vertical cylinder bag pump is divided into multiple stages and radial split type. The operation of a vertical pouch pump is well known to those skilled in the art and will not be described in detail herein.
The scheme of the application is not limited to the type and the structure of the vertical cylinder bag pump. The key point of conveying the low-temperature medium is to keep the stability of the liquid temperature, so that the vaporization of the low-temperature medium caused by temperature change is avoided, and the stable operation of the pump is further influenced. Most of the structure of the vertical type barrel pump is buried underground to reduce the influence of air and sunlight.
Referring to fig. 1, in the present embodiment, a vertical type bag pump 10 includes a pump cylinder 11, a mounting flange 12, a suction pipe 13, a discharge pipe 14, and the like. The pump cylinder 11 is substantially columnar as a main body portion of the vertical type bag-in-cylinder pump 10, and the low-temperature medium is transferred through the pump cylinder 11, so that the temperature of the outer wall of the pump cylinder 11 is low. When the vertical type bag pump 10 is installed, the pump cylinder 11 is buried in the ground in the vertical direction. Of course, the pump cylinder 11 may take other shapes, and is not limited herein. The mounting flange 12 is used to connect with components in the mounting structure of the vertical pouch pump 10 to support the weight of the vertical pouch pump 10 when the vertical pouch pump 10 is mounted. The suction pipe 13 and the discharge pipe 14 are positioned in parallel or at an angle of 180 ° to each other in the upper part of the mounting flange 12, although other arrangements are possible.
In one embodiment of the present application, the mounting structure of the vertical type pouch pump includes a concrete foundation 20, a foundation cold insulation layer 30, and a buffer cold insulation layer 40. The concrete foundation 20 is provided with a containing groove for containing the pump cylinder 11; the basic cold insulation layer 30 is attached to the outer side wall of the pump cylinder 11, and the working temperature of the basic cold insulation layer is between-196 ℃ and normal temperature. The base cold-insulating layer 30 includes a base cold-insulating material, and thus the working temperature of the base cold-insulating material is between-196 ℃ and normal temperature. The normal temperature may be 25 ℃. The buffer cold-insulation layer 40 has elasticity, and the buffer cold-insulation layer 40 is filled in a space formed by the side wall of the accommodating groove, the basic cold-insulation layer 30 and the outer side wall of the pump barrel 11.
The concrete foundation 20 is a load-bearing structure below the ground and may be a foundation pit, a bearing platform, a frame column, a ground beam, or the like. The concrete foundation 20 bears the weight of the vertical bag pump 10 and transfers them to the foundation together with its own weight. The concrete foundation 20 in this embodiment also has a certain cold insulation effect. The volume of the accommodating groove formed in the concrete foundation 20 needs to be adapted to the volume of the pump cylinder 11.
In a preferred embodiment, the inner wall surface and the bottom surface of the receiving groove are covered with a closed stainless steel plate 21, and the closed stainless steel plate 21 isolates the pump cylinder 11 from the portion outside the receiving groove, preventing liquid, moisture, corrosive substances in the concrete foundation 20 from contacting the pump cylinder 11. The thickness of the stainless steel plate can be set according to practical conditions.
In this embodiment, the base cold insulation layer 30 is attached to the outer side wall of the pump cylinder 11 to perform cold insulation on the pump cylinder 11. The base insulating layer 30 includes a plurality of insulating members, and the plurality of insulating members are adhered to the outer wall of the pump cylinder 11 in a dispersed manner. In this embodiment, the base cold insulation layer 30 is integrally attached to or abuts against the outer side wall of the pump cylinder 11. Preferably, the base chill 30 wraps around the outside wall of the pump cylinder 11. The base insulating layer 30 may be bonded to the outer wall of the pump cylinder 11, or may be bound to the outer wall of the pump cylinder 11 by a binding tape.
Further, the base cold-insulating layer 30 may include one or more base cold-insulating materials. Because the temperature of the cryogenic medium delivered by the vertical pouch pump 10 is relatively low, e.g., ethylene-104 c, ethane-92 c, the temperature of the outside wall of the pump can 11 will also reach a relatively low temperature. The working temperature of the basic cold insulation layer 30 in this embodiment is between-196 ℃ and normal temperature. Therefore, even if the temperature of the outer side wall of the pump cylinder 11 is low, the basic cold insulation layer 30 of the scheme can still be used normally, so that the pump cylinder 11 is effectively insulated, and the leakage amount of the cold quantity of the pump cylinder 11 is greatly reduced. It will be appreciated that the cold insulation material will have an upper and lower operating temperature limit, and therefore when the lower operating temperature limit of a particular cold insulation material meets the requirements of the present application, the upper operating temperature limit is also determined, and thus the present embodiment is clear.
In this embodiment, the basic cold insulation layer 30 includes a basic cold insulation material, and the basic cold insulation material is foam glass. The lower limit of the operating temperature of the foam glass can reach-196 deg.c, and the thickness of the foam glass is determined according to the temperature of the cryogenic medium transported by the vertical tube bag pump 10. In one embodiment, the temperature can be maintained at around-60 ℃ by properly setting the thickness of the foam glass.
Based on the above embodiment, the present solution further has a buffer cold insulation layer 40, the buffer cold insulation layer 40 has elasticity, and the buffer cold insulation layer 40 is filled in a space enclosed by the side wall of the accommodating groove, the basic cold insulation layer 30 and the outer side wall of the pump barrel 11. The buffer cold insulation layer 40 can perform cold insulation on the vertical type barrel pump 10, further prevent cold energy leaked from foam glass from being transferred to the concrete foundation 20, and maintain the temperature at normal temperature by reasonably setting the whole thickness of the buffer cold insulation layer 40. On the other hand, the cushioning layer 40 is also capable of cushioning pressure; i.e., when the concrete foundation 20 is frozen due to cold, deformation and cracking are caused. The buffer cold insulation layer 40 can effectively buffer the deformation of the concrete foundation 20 to avoid the inclination of the vertical type barrel pump 10, and improve the stability of the vertical type barrel pump 10. Meanwhile, when the vertical cylinder bag pump 10 deforms, inclines and the like, the buffer cold insulation layer 40 can buffer the extrusion force generated by the deformation of the vertical cylinder bag pump 10 on the concrete foundation 20, so that the structural stability of the concrete foundation 20 is effectively protected.
It should be noted that, when the base cold insulation layer 30 wraps a portion of the outer side wall of the pump cylinder 11, the buffer cold insulation layer 40 contacts a portion of the outer side wall of the pump cylinder 11, so that the buffer cold insulation layer 40 is located in a space defined by the side wall of the accommodating groove, the base cold insulation layer 30 and the outer side wall of the pump cylinder 11. When the base cold insulation layer 30 is wrapped around the outer side wall of the pump cylinder 11, the buffer cold insulation layer 40 is sandwiched between the side wall of the accommodating groove and the gap between the outer sides of the base cold insulation layer 30.
The buffer and cold-keeping layer 40 may contain one or more buffer and cold-keeping materials. In one embodiment, the buffer cold insulation layer 40 is filled in the space formed by the side wall of the accommodating groove, the base cold insulation layer 30 and the outer side wall of the pump barrel 11 by foaming the buffer cold insulation material. The buffer and cold insulation material is a material capable of foaming, such as foamed polyurethane, and in another embodiment, the buffer and cold insulation material is in a granular form, such as pearlitic sand. The buffer cold insulation material is densely filled in the space formed by the side wall of the accommodating groove, the basic cold insulation layer 30 and the outer side wall of the pump barrel 11. Whether the foam material or the granular buffering cold insulation material is used, the buffering cold insulation material can be effectively filled into all corners of a space formed by the side wall of the accommodating groove, the basic cold insulation layer 30 and the outer side wall of the pump cylinder 11, so that cold leakage dead angles are effectively reduced, and the cold insulation effect on the pump cylinder 11 is improved.
According to the technical scheme, the base cold insulation layer 30 and the buffer cold insulation layer 40 are arranged in the accommodating groove in the concrete foundation 20, and the working temperature of the base cold insulation layer 30 is between-196 ℃ and normal temperature; therefore, even if the temperature of the outer side wall of the pump cylinder 11 is low, the basic cold insulation layer 30 of the scheme can still be used normally, so that the pump cylinder 11 is effectively insulated, and the leakage amount of the cold quantity of the pump cylinder 11 is greatly reduced. The buffer cold insulation layer 40 can further prevent cold energy leaked from the foam glass from being transferred to the concrete foundation 20, and can buffer pressure between the concrete foundation 20 and the pump cylinder 11, so that the structural stability of the concrete foundation 20 is effectively protected.
Referring to fig. 1, in order to support the weight of the bag pump, the installation structure of the vertical type bag pump further comprises a support member passing through the concrete foundation 20 transversely, and the support member is connected with a support flange of the bag pump. In one embodiment, the support member is a support steel 70, the support steel 70 has a columnar structure with a certain thickness, and the support member is just arranged corresponding to the mounting flange 12 of the vertical tubular bag pump 10. The mounting flange 12 is lapped over the upper surface of the support steel. The barrel pump mounting structure further comprises a compression-resistant cold-insulation layer 50, wherein the compression-resistant cold-insulation layer 50 is connected with the supporting piece and is positioned on the upper side of the supporting piece; the compressive capacity of the compressive cold insulation layer 50 is not less than 2MPa.
Since the support steel 70 is metal, in order to reduce the amount of cold transferred from the pump cylinder 11 to the support steel 70 via the support flange, the installation structure of the vertical type barrel pump further includes a cold insulation block 72, and the cold insulation block 72 is sandwiched between the support member and the support flange. In a preferred embodiment, the upper and lower surfaces of the block 72 are planar, with the upper surface of the block 72 abutting the support flange and the lower surface abutting the support steel 70.
In order to prevent rainwater on the ground surface from flowing backward into the accommodating groove from the outer side of the notch of the accommodating groove, the upper surface of the compression-resistant cold-insulating layer 50 is protruded from the upper edge of the accommodating groove in this embodiment. For example, in rainy weather, part of the rainwater flows from the upper surface of the anti-compression cold insulation layer 50 to the outside of the accommodating groove along the upper edge of the accommodating groove, so that the amount of water flowing into the accommodating groove is reduced, and therefore, the installation structure of the embodiment can effectively reduce the amount of water entering the concrete foundation 20 in the environment.
Further, the mounting structure of the vertical type barrel pump further includes a waterproof plate 71; the waterproof plate 71 is transversely connected between the side wall of the accommodating groove and the supporting piece; the compression-resistant cold-insulating layer 50 is provided on the plate surface of the waterproof plate 71. In one embodiment, the waterproof plate 71 is a waterproof steel plate, and the plate surface of the waterproof steel plate extends in the horizontal direction, one end of the waterproof steel plate is welded to the upper surface of the support steel 70, and the other end is welded to the concrete foundation 20 and the plate surface of the stainless steel sealing steel plate inside the accommodating groove. The waterproof plate 71 can further block the liquid permeated from above, and even if a part of the liquid penetrates the compression-resistant cold insulation layer 50, the liquid is still blocked by the waterproof plate 71, so that the amount of water vapor entering the cold insulation structure below the support flange is effectively reduced.
Based on the above embodiment, the compression-resistant cold insulation layer 50 is used to insulate the portion of the vertical cylinder bag pump 10 above the support flange, and in an alternative embodiment, the base cold insulation layer 30 wraps the portion of the pump cylinder 11 below the support flange, and the portion above the support flange is mainly insulated by the compression-resistant cold insulation layer 50. When the part of the vertical cylinder bag pump 10 above the support flange leaks seriously, the frozen ground surface can generate a gap, and rainwater can enter the concrete foundation 20, so that the concrete foundation 20 is frozen, a vicious circle is formed, and the installation stability of the vertical cylinder bag pump 10 is seriously threatened. Therefore, in this embodiment, the compression-resistant cold insulation layer 50 is utilized to insulate the portion of the vertical type barrel pump 10 above the support flange, so as to improve the stability of the integral cold insulation structure above the support flange by reducing the amount of cold leakage of the vertical type barrel pump 10 above the support flange.
Further, since the portion of the vertical type barrel pump 10 above the support flange is close to the ground, the portion is stepped on and pressed to deform the cold insulation structure above the support flange, and the deformed cold insulation structure can cause the vertical type barrel pump 10 to incline and increase the leakage amount of cold. In this embodiment, the compression resistance of the compression-resistant cold-insulation layer 50 is not less than 2MPa, so that the compression-resistant cold-insulation layer can bear the treading and heavy compression under most conditions, and therefore the structural stability of the whole cold-insulation structure above the support flange is effectively protected.
Specifically, the compressive cold insulation layer 50 includes a plurality of foam glass tiles 51; the compressive capacity of the foam glass block 51 is about 3MPa. A plurality of foam glass blocks 51 are stacked and filled in the space surrounded by the waterproof plate 71, the support flange, the outer side wall of the pump cylinder 11 and the side wall of the accommodating groove. The foam glass block 51 may be of various shapes and structures, and is preferably in the shape of a regular rectangular parallelepiped. In a specific installation process, the foam glass bricks 51 are stacked in layers in order in the up-down direction like a piling wall brick-like structure. In the adjacent two layers, the joints of the foam glass tiles 51 are staggered with respect to each other.
Further, the barrel pump further comprises a suction pipe 13 and a discharge pipe 14 which are arranged at the upper end of the pump barrel 11; the suction pipe 13 and the discharge pipe 14 are wrapped with a pipe cold insulation layer 60, and the pipe cold insulation layer 60 is formed by foaming foamed polyurethane. Since a certain vibration is generated when the low-temperature medium flows through the inside of the suction pipe 13 and the discharge pipe 14, the foamed polyurethane with certain elasticity is arranged to cool the low-temperature medium, so that the service life of the foamed polyurethane can be not greatly influenced while the suction pipe 13 and the discharge pipe 14 are effectively cooled.
While the invention has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. The utility model provides a mounting structure of vertical tube bag pump, its characterized in that, vertical tube bag pump has a pump barrel, vertical tube bag pump's mounting structure includes:
a concrete foundation provided with an accommodating groove for accommodating the pump cylinder;
The basic cold insulation layer is attached to the outer side wall of the pump cylinder, and the working temperature of the basic cold insulation layer is between-196 ℃ and normal temperature;
the buffer cold insulation layer has elasticity, and is filled in a space formed by the side wall of the accommodating groove, the basic cold insulation layer and the outer side wall of the pump cylinder;
The support piece transversely penetrates through the concrete foundation and is used for connecting support flanges of the vertical cylinder bag pump;
the compression-resistant cold insulation layer is connected with the supporting piece and is positioned on the upper side of the supporting piece.
2. The mounting structure of a vertical type cartridge pump according to claim 1, wherein the basic cold insulation layer comprises a basic cold insulation material, the basic cold insulation material is a foam glass layer, and the foam glass layer is wrapped on the outer side wall of the pump cartridge along the circumferential direction of the pump cartridge.
3. The mounting structure of a vertical type bag pump according to claim 1, wherein the buffer cold insulation layer is foamed and filled in a space formed by the side wall of the accommodating groove, the basic cold insulation layer and the outer side wall of the pump barrel, so as to form the buffer cold insulation layer.
4. The mounting structure of a vertical pouch pump according to claim 3, wherein the buffer cold-retaining layer is a foamed polyurethane layer.
5. The mounting structure of a vertical type bag-in-a-tube pump according to any one of claims 1 to 4, wherein the vertical type bag-in-a-tube pump further comprises a mounting flange connected to an outer side wall of the pump cylinder; the compression resistance of the compression-resistant cold-insulating layer is not less than 2MPa.
6. The mounting structure of a vertical pouch pump according to claim 1, wherein the upper surface of the pressure-resistant and cold-retaining layer protrudes from the upper edge of the receiving groove.
7. The mounting structure of a vertical type pouch pump according to claim 1, wherein the mounting structure of a vertical type pouch pump further comprises a waterproof plate; the waterproof plate is transversely connected between the side wall of the accommodating groove and the supporting piece;
The compression-resistant cold-insulating layer is arranged on the surface of the waterproof board.
8. The mounting structure of a vertical pouch pump according to claim 7, wherein the pressure-resistant and cold-insulating layer comprises a plurality of foam glass tiles; and the foam glass bricks are stacked and filled in the space surrounded by the waterproof plate, the supporting flange, the outer side wall of the pump cylinder and the side wall of the accommodating groove.
9. The mounting structure of a vertical pouch pump according to claim 1, further comprising a cold stop block interposed between the support member and the support flange.
10. The mounting structure of a vertical type bag-in-tube pump according to claim 1, wherein the vertical type bag-in-tube pump further comprises a suction pipe and a discharge pipe provided at an upper end of the pump cylinder;
The suction pipe and the discharge pipe are wrapped with a pipeline cold insulation layer, and the pipeline cold insulation layer is a foaming polyurethane layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295153.6A CN109973440B (en) | 2019-04-12 | 2019-04-12 | Mounting structure of vertical cylinder bag pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910295153.6A CN109973440B (en) | 2019-04-12 | 2019-04-12 | Mounting structure of vertical cylinder bag pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973440A CN109973440A (en) | 2019-07-05 |
| CN109973440B true CN109973440B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910295153.6A Active CN109973440B (en) | 2019-04-12 | 2019-04-12 | Mounting structure of vertical cylinder bag pump |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593835A (en) * | 1983-04-27 | 1986-06-10 | Hitachi, Ltd. | Cryogenic liquefied pump system |
| CN103573644A (en) * | 2013-11-18 | 2014-02-12 | 大连深蓝泵业有限公司 | Low-temperature barrel bag pump mechanical sealing protecting device |
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| CN208057510U (en) * | 2018-07-12 | 2018-11-06 | 成都深冷科技有限公司 | A kind of LNG pump pond heat-insulating cover |
| CN209743248U (en) * | 2019-04-12 | 2019-12-06 | 南京扬子石油化工设计工程有限责任公司 | Mounting structure of vertical barrel pump |
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2019
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| US4593835A (en) * | 1983-04-27 | 1986-06-10 | Hitachi, Ltd. | Cryogenic liquefied pump system |
| CN103573644A (en) * | 2013-11-18 | 2014-02-12 | 大连深蓝泵业有限公司 | Low-temperature barrel bag pump mechanical sealing protecting device |
| CN203907046U (en) * | 2014-05-19 | 2014-10-29 | 浙江华尔绝热科技有限公司 | Cryogenic pipeline cold insulation system |
| CN204024977U (en) * | 2014-08-12 | 2014-12-17 | 山东义升环保设备有限公司 | The LNG pump pond of the outer cold insulation of a kind of end cap |
| CN204372530U (en) * | 2014-12-18 | 2015-06-03 | 山东益华燃气设备有限公司 | A kind of pumping skid-mounted device for LNG gas station |
| CN104564711A (en) * | 2015-01-19 | 2015-04-29 | 江苏省特种设备安全监督检验研究院无锡分院 | Submerged double-discharging magnetic driving pump for conveying liquefied natural gas |
| CN106224246A (en) * | 2016-08-31 | 2016-12-14 | 上海交通大学 | A kind of Vacuum cooling case low drain small-sized low-temperature centrifugal pump of heat |
| WO2018092651A1 (en) * | 2016-11-18 | 2018-05-24 | 川崎重工業株式会社 | Heat insulating container for low-temperature liquefied gas pumps |
| CN208057510U (en) * | 2018-07-12 | 2018-11-06 | 成都深冷科技有限公司 | A kind of LNG pump pond heat-insulating cover |
| CN209743248U (en) * | 2019-04-12 | 2019-12-06 | 南京扬子石油化工设计工程有限责任公司 | Mounting structure of vertical barrel pump |
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