CN111678030A

CN111678030A - Tube bundle tube row type storage tank

Info

Publication number: CN111678030A
Application number: CN202010480205.XA
Authority: CN
Inventors: 胡永祥; 王磊; 孙超书; 张建军; 孙国华
Original assignee: Beijing Shida Oriental Engineering Design Co ltd
Current assignee: Beijing Shida Oriental Engineering Design Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-09-18

Abstract

The invention is suitable for the technical field of chemical equipment, and provides a pipe bundle pipe row type storage tank which comprises two parallel pipe manifolds, wherein a plurality of pipe bundles are connected between the opposite sides of the two pipe manifolds; each manifold comprises manifold heads positioned at two ends and a plurality of manifold sections positioned between the two manifold heads; each manifold head is provided with an end socket, and each end socket is provided with a manhole; each tube bundle comprises a plurality of tube bundle sections which are sequentially connected end to end. Therefore, the invention has the advantages of simple manufacture and assembly, convenient transportation, adjustable volume of the storage tank, suitability for being applied to desert and gobi areas with large liquid storage amount and wide regions, low storage temperature and storage pressure of the storage tank, high safety and low production cost.

Description

Tube bundle tube row type storage tank

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a tube bundle tube row type storage tank.

Background

At present, a horizontal storage tank or a spherical storage tank is generally used for storing liquid such as Liquefied Petroleum Gas (LPG) or propane, butane, natural gas condensate (mixed hydrocarbon) and the like in an oil and gas field production station, and is installed on the ground, and a cooling water spraying, cooling and fire-fighting system is designed in a matching way. Because the storage tank is installed on the ground, when the temperature rises in summer, the storage temperature and the storage pressure of liquid in the storage tank correspondingly rise, hidden dangers are brought to safety production, and the storage tank is often required to be sprayed and cooled so as to ensure the safety of the operation of the storage tank. For small horizontal storage tanks, a shed is built above the storage tank to block direct sunlight.

In the gobi area of desert, the temperature is high in summer, particularly in the hottest 6 months and 7 months, and the surface temperature often reaches 60 ℃ or higher. In the middle and middle seasons of summer, after direct irradiation of sunlight, the storage temperature of liquid in the storage tank inevitably exceeds 50 ℃, so that the pressure of the storage tank is increased and even overpressure is generated, and the storage tank is forced to be cooled only by adopting a mode of spraying the storage tank with water. However, the evaporation loss of the water-cooled storage tank is large, water resource waste is serious, water shortage in the gobi desert area is serious, and water resource supply is insufficient, but a large amount of water resource is urgently needed for cooling the storage tank, so a contradiction is formed between water resource supply and storage tank cooling.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a tube bundle and tube row type storage tank, which is simple to manufacture and assemble, convenient to transport, and adjustable in volume, and can be applied to a desert and gobi area with a large amount of liquid to be stored and a wide area, and the storage tank has low storage temperature and storage pressure, high safety, and low production cost.

In order to achieve the purpose, the invention provides a pipe bundle pipe gang storage tank which comprises two parallel pipe manifolds, wherein a plurality of pipe bundles are connected between opposite sides of the two pipe manifolds.

Each manifold comprises manifold heads positioned at two ends and a plurality of manifold sections positioned between the two manifold heads; every all be equipped with the head on the manifold head, all be equipped with the manhole on the head.

Each tube bundle comprises a plurality of tube bundle sections which are sequentially connected end to end.

One of the manifolds is also provided with a sewage draining outlet, a liquid inlet and a backflow port; and the other manifold is also provided with a pressure transmitter port and a temperature transmitter port.

According to the tube bundle tube row type storage tank, each manifold section and each manifold head are provided with a plurality of ports for connecting the tube bundles.

According to the pipe bundle and pipe row type storage tank, each manifold is provided with a liquid level meter port, a nitrogen replacement and vent port and a plurality of safety valve ports.

According to the tube bundle tube row type storage tank, two safety valve ports are arranged on each manifold.

The tube bundle tube row type storage tank provided by the invention has the advantage that the average outer diameter of each tube bundle is not less than 100 cm.

According to the pipe bundle pipe row type storage tank, the installation gradient of the pipe bundle is 0.1% -0.3%, and the manifold provided with the liquid outlet and the liquid inlet is installed at the lower part of the gradient.

According to the tube bundle tube row type storage tank, the storage capacity of the storage tank is not more than 90% of the total volume of the storage tank.

According to the tube bundle tube row type storage tank, the number of the tube bundles is 3-20.

According to the tube bundle tube row type storage tank, the number of the tube bundle sections is 3-40.

The invention aims to provide a tube bundle tube row type storage tank, which is characterized in that a plurality of tube bundles are connected between two parallel manifolds; each manifold comprises manifold heads positioned at two ends and a plurality of manifold sections positioned between the two manifold heads; each tube bundle comprises a plurality of tube bundle sections which are sequentially connected end to end; the manifold and the pipe bundle are assembled in a multi-section combination mode, so that the device can be suitable for the space size of different transportation equipment in the transportation process, and is convenient to transport; after being transported to a storage tank installation site, the steel pipe is welded, assembled and connected together on site, the assembly mode is simple, and the labor intensity of workers is low; the lengths of the manifolds and the pipe bundles are changed by increasing or reducing the number of the manifold sections and the pipe bundle sections, so that the storage volume of the storage tank is changed, and the storage tank is suitable for being applied to a desert gobi area with large liquid storage amount and a wide area; the storage tank is buried underground, the storage temperature and the storage pressure of the storage tank can be greatly reduced, the safety of equipment operation is guaranteed, a cooling water spraying and cooling facility is not required to be matched, the production cost is reduced, the water resource in the desert Gobi area is saved, and the problem that the water resource in the desert Gobi area is in short supply and the storage tank needs to be cooled by water spraying is solved. In conclusion, the beneficial effects of the invention are as follows: the storage tank preparation equipment is simple, the transportation of being convenient for, and the volume size of storage tank can be adjusted, can be fit for being applied to the big, the wide desert gobi area in region of stock solution volume, and the storage temperature and the storage pressure of storage tank are low, and the security is high, and low in production cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-manifold, 11-manifold head, 111-end socket, 112-manhole; 12-manifold section, 121-port; 13-a liquid level meter port, 14-a nitrogen replacement and vent port, and 15-a plurality of safety valve ports; 16-sewage draining outlet, 161-liquid outlet, 162-liquid inlet and 163-reflux outlet; 17-pressure transmitter port, 171-temperature transmitter port; 2-tube bundle, 21-tube bundle section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a tube bundle tube bank type storage tank, which comprises two parallel manifolds 1, and a plurality of tube bundles 2 arranged in a tube bank type are connected between opposite sides of the two manifolds 1.

Each manifold 1 comprises manifold heads 11 positioned at two ends and a plurality of manifold sections 12 positioned between the two manifold heads 11; each manifold head 11 is provided with an end enclosure 111, and each end enclosure 111 is provided with a manhole 112; each manifold section 12 and manifold head 11 is provided with a plurality of ports 121 for connecting the tube bundles 2.

Each tube bundle 2 comprises a plurality of tube bundle sections 21 connected end to end in sequence. The number of the tube bundles 2 can be set according to the requirement of the storage volume, and in the invention, the number of the tube bundles 2 is 3-20. Accordingly, the number of ports 121 is determined according to the number of the tube bundles 2. The number of the tube bundle sections 21 can be set according to the requirement of the storage volume, and in the invention, the number of the tube bundle sections 21 is 3-40.

Each manifold 1 is provided with a liquid level meter port 13, a nitrogen replacement and vent port 14 and a plurality of safety valve ports 15. One of the manifolds 1 is also provided with a sewage draining outlet 16, a liquid outlet 161, a liquid inlet 162 and a return opening 163; the other manifold 1 is also provided with a pressure transmitter port 17 and a temperature transmitter port 171.

The liquid level meter port 13 is used for observing the liquid level in the storage tank; the pressure transmitter port 17 is used for detecting the pressure of the storage tank; the temperature transmitter port 171 is used for detecting the storage temperature of the storage tank; the nitrogen displacement and vent 14 and manway 112 allow for nitrogen or air displacement of the hydrocarbon gas in the storage tank to meet internal maintenance, inspection, and repair needs. When the storage tank is installed, the nitrogen displacement and vent ports 14 on the two manifolds 1 are communicated with each other, so that the gas phase space communication of the two manifolds can be realized.

In the invention, each manifold 1 is provided with two safety valve ports 15, so that the operation safety of the storage tank is improved; the average outer diameter of each tube bundle 2 is not less than 100cm to meet the liquid storage requirement. The storage volume of the tank is not more than 90% of the total volume of the tank.

In the invention, when the storage tank is installed, the storage tank is generally installed in a horizontal mode, when the storage tank needs to have an inclination, the inclination of the tube bundle 2 can be 0.1% -0.3%, and the manifold 1 provided with the liquid outlet 161 and the liquid inlet 162 is installed at a low position.

The working principle of the invention is as follows:

LPG or propane, butane, natural gas condensate (hydrocarbon mixture) and other liquids from the oil-gas field processing device enter the manifold 1 and the pipe bundle 2 through the liquid inlet 162 of the storage tank for storage; when the liquid stored in the storage tank needs to be transported outside, the liquid is output out of the storage tank through the storage tank liquid outlet 161 and is output outside through the liquid pump. When the liquid pump is operated and requires backflow, the backflow liquid enters the tank through the tank backflow port 163.

The storage tank is used for storing liquids such as LPG (liquefied petroleum gas), propane, butane and natural gas condensate (hydrocarbon mixture), the lengths of the manifold 1 and the pipe bundle 2 are changed by increasing or decreasing the number of the manifold sections 12 and the pipe bundle sections 21 in the manifold 1 and the pipe bundle 2, so that the storage capacity of the storage tank is changed, the storage capacity of the storage tank can be infinitely increased, and the storage tank is suitable for being applied to gobi areas in deserts with large liquid storage amount and wide regions.

Because the temperature is higher in the summer in the gobi desert area, the storage tank can be buried underground, and fine sandy soil covers the periphery and the upper surface of the storage tank, so that the storage temperature and the storage pressure of the storage tank are greatly reduced, and the running safety of equipment is guaranteed. In the invention, the thickness of the fine sandy soil covered on the periphery and the upper surface of the storage tank is not less than 1 m. The fine sandy soil covered on the storage tank is required to be higher than the natural ground by more than 0.3 m; because the storage tank is installed in a buried manner, a cooling water spraying and cooling facility matched with the storage tank is not needed, the engineering cost and the equipment cost of the cooling water spraying and cooling facility are reduced, and the production cost is reduced.

The liquid stored in the storage tank is gas-liquid saturated liquid, and the working pressure of the storage tank is the saturated vapor pressure of the stored liquid. The design of the pressure vessel is required, and the regulations of TSG 21 fixed pressure vessel safety technology supervision regulations and GB/T150.1-150.4 pressure vessel regulations are mainly executed.

In the invention, the manifold 1 and the tube bundle 2 are assembled in a multi-section combination mode, and because the length of each section of the manifold 1 and the tube bundle 2 is not large, the invention can be suitable for the space size of different transportation equipment in the transportation process, and is convenient to transport; the pipe bundle and pipe row type storage tank is simple in construction process, does not need to be manufactured into a finished product in a production workshop, works on site in an assembly mode, reduces transportation requirements, and reduces labor intensity of workers in a carrying process.

The requirements of welding seams and containers with pressing force for on-site welding are nondestructive testing and postweld heat treatment. In view of the environment of the oil and gas field, the invention ensures that the postweld heat treatment can not be carried out on the oil and gas field by optimizing the material and the thickness of the steel plate for manufacturing the storage tank, thereby reducing the workload of workers on the field and the welding manufacturing cost.

In summary, the invention connects a plurality of tube bundles between two parallel manifolds; each manifold comprises manifold heads positioned at two ends and a plurality of manifold sections positioned between the two manifold heads; each tube bundle comprises a plurality of tube bundle sections which are sequentially connected end to end; the manifold and the pipe bundle are assembled in a multi-section combination mode, so that the device can be suitable for the space size of different transportation equipment in the transportation process, and is convenient to transport; after being transported to a storage tank installation site, the steel pipe is welded, assembled and connected together on site, the assembly mode is simple, and the labor intensity of workers is low; the lengths of the manifolds and the pipe bundles are changed by increasing or reducing the number of the manifold sections and the pipe bundle sections, so that the storage volume of the storage tank is changed, and the storage tank is suitable for being applied to a desert gobi area with large liquid storage amount and a wide area; the storage tank is buried underground, the storage temperature and the storage pressure of the storage tank can be greatly reduced, the safety of equipment operation is guaranteed, a cooling water spraying and cooling facility is not required to be matched, the production cost is reduced, the water resource in the desert Gobi area is saved, and the problem that the water resource in the desert Gobi area is in short supply and the storage tank needs to be cooled by water spraying is solved. In conclusion, the beneficial effects of the invention are as follows: the storage tank preparation equipment is simple, the transportation of being convenient for, and the volume size of storage tank can be adjusted, can be fit for being applied to the big, the wide desert gobi area in region of stock solution volume, and the storage temperature and the storage pressure of storage tank are low, and the security is high, and low in production cost.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A pipe bundle pipe row type storage tank is characterized by comprising two parallel pipe manifolds, wherein a plurality of pipe bundles are connected between opposite sides of the two pipe manifolds;

each manifold comprises manifold heads positioned at two ends and a plurality of manifold sections positioned between the two manifold heads; each manifold head is provided with an end socket, and each end socket is provided with a manhole;

each tube bundle comprises a plurality of tube bundle sections which are sequentially connected end to end;

2. The tube bundle tube bank storage tank of claim 1, wherein each of the manifold segments and manifold headers has a plurality of ports for connecting the tube bundles.

3. The tube bundle tube bank storage tank of claim 1, wherein each manifold is provided with a level gauge port, a nitrogen displacement and venting port and a plurality of relief valve ports.

4. The tube bundle tube bank storage tank of claim 3, wherein each manifold is provided with two relief valve ports.

5. The tube bundle tube bank storage tank of claim 1, wherein each of the tube bundles has an average outer diameter of not less than 100 cm.

6. The tube bundle tube bank storage tank according to claim 1, wherein the tube bundle is installed at an installation gradient of 0.1-0.3%, and the manifold, which is installed with the liquid outlet and the liquid inlet, is installed at a lower position of the gradient.

7. The tube bundle tube row tank according to any one of claims 1 to 6, wherein the storage tank has a storage capacity of not more than 90% of the total volume of the storage tank.

8. The tube bundle tube row storage tank according to claim 7, wherein the number of the tube bundles is 3 to 20.

9. The tube bundle tube row storage tank according to claim 7, wherein the number of the tube bundle segments is 3 to 40.